A shock absorber for a vehicle includes a pressure tube defining a fluid chamber. A piston is slidably positioned within the fluid chamber and defines a first working chamber and a second working chamber. The piston includes a passage extending therethrough. The shock absorber further includes a valve assembly adapted to selectively open and close the passage. The valve assembly includes a spring and a disc. The spring includes a ring defining a center aperture and a plurality of arms extending around the ring. Each of the plurality of arms includes a radially extending leg, a base end positioned proximate to the leg, and a distal end. A first dimension of the base end is greater than a second dimension of the distal end. The disc is at least partially positioned between the piston and the spring.
A hydraulic rebound stop assembly for a hydraulic damper is provided. The rebound stop assembly includes a movable rod, a retention feature fixed to the movable rod, and a ring circumscribing and slidingly engaging the movable rod. The ring axially extends between a first end surface and an axially spaced apart second end surface. The ring includes an outer wall and an inner wall defining a cavity. The retention feature is at least partially received in the cavity. The ring is axially movable between a first position and a second position. A dimension of the cavity is greater than a dimension of axial travel of the ring between the first position and the second position. In the first position, the retention feature constrains axial movement of the ring in a first direction.
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
F16F 9/22 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with one or more cylinders, each having a single working space closed by a piston or plunger
3.
Torque control for hydraulic pumps in hydraulic suspension systems
A suspension system and method of controlling the same is provided. The suspension system includes a damper and a pump assembly fluidly connected with the damper, the pump assembly having a pump and a pump motor. The method includes: (i) monitoring real-time data reflecting at least one of a dynamic state of the vehicle and an input from a vehicle operator; (ii) calculating a damper force based on the real-time data, the damper force being a force to be output by the damper; (iii) determining a hydraulic torque to be output by the pump based on the calculated damper force; (iv) determining a current to be applied to the pump motor based on the determined hydraulic torque; (v) applying the determined current to the pump motor to operate the pump; and (vi) applying a force to the vehicle by the damper.
B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
4.
TANK BREATHER CAP WITH INTEGRATED FILTER, SPLASH PROTECTION, AND NIPPLE FOR BREATHER HOSE
A hydraulic fluid tank assembly for use with a suspension system for a vehicle is provided. The hydraulic fluid tank assembly includes a tank having a chamber configured to contain a volume of hydraulic fluid and a volume of gas, and a breather cap assembly. The breather cap assembly includes a breather cap having a passageway and a recess, a filter having one or more openings configured to permit gas to pass therethrough, and a splash guard coupled to the breather cap, the splash guard retaining the filter in the recess of the breather cap, and the splash guard having a distal opening. The passageway of the breather cap, the openings of the filter, and the distal opening of the splash guard are fluidly connected and configured to permit gas to pass therethrough to and from the chamber of the tank and the atmosphere.
An actively controlled valve assembly and a method for assembling an actively controlled valve assembly comprising a coil housing, a valve housing, an intermediate member and a resilient locking member which is to be pre-tensioned into a pre-tensioning aperture, where the intermediate member comprises a guiding projection for pre-tensioning the resilient locking member which assures that it is brought into the correct position when the assembly is in the final assembled position where the resilient locking member is locked in a locking aperture of the valve housing.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
6.
Vehicle suspension system with multiple modes of operation
A suspension system including four dampers is disclosed where each damper includes a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front left and back right dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the front right and back left dampers. A first bi-directional pump is connected between the first and second hydraulic circuits and a second bi-directional pump is connected between the third and fourth hydraulic circuits. The first and second bi-directional pumps can either pump in the same direction or in opposite directions. The level of pitch and roll stiffness can be adjusted by running the first and second bi-directional pumps to change the pressure in select hydraulic circuits of the system.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A shock absorber for a vehicle including a pressure tube, a piston body slidably positioned within the pressure tube, a blowoff disc having a first surface in contact with a surface of the piston body and an opposite second surface, a disc stack, and a preload ring axially positioned between the disc stack and the blowoff disc. The preload ring is in direct contact with the second surface of the blowoff disc and includes a circular outer surface and a substantially constant thickness. The preload ring further includes a cross-sectional width that varies along its circumference. The preload ring increases smoothness of the blowoff opening behavior of the shock absorber, which can result in an improved comfort level of the vehicle.
A damper including a pressure tube, a reserve tube, an intermediate tube positioned between the pressure and reserve tubes, and one or more external control valves. A piston divides the pressure tube into first and second working chambers. A control valve seat provides a connection interface for the external control valve(s). The control valve seat includes a neck portion and a flange portion with a pair of cut-outs that are circumferentially spaced from one another to define first and second windows that are arranged in fluid communication with a reserve tube opening and first and second wings that extend out from the neck portion and sit/rest against the reserve tube.
The present application relates to an interface element adapted for use in a shock absorber, the interface element comprising a cylindrical shape coaxially arranged around an axis A, wherein the interface element further comprises a first engaging end, a second engaging end, an engaging part, and at least one valve slot. The interface element forms a sealing interface between a first central cylinder, a second central cylinder, an inner cylinder and at least one valve in a shock absorber. The disclosure further relates to a shock absorber and a method for installing an interface element into a shock absorber.
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
A damper includes a piston coupled to a piston rod slidably positioned in a damper tube. A piston rod seal is positioned radially between the piston rod and a first end of the damper tube. A cap is positioned over the first end of the damper tube and includes a side wall positioned in contact with and extending annularly about the first end of the damper tube. An end wall extends radially inwardly from the side wall. A collector radially outwardly extends from the side wall. The cap includes a vent. The side wall includes an end face at an opposite end of the cap as the end wall. The collector is positioned axially between the vent and the end face of the side wall. The collector includes surfaces on which oil passing by the piston rod seal will accumulate.
B60G 13/06 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type
An accumulator checking method comprises setting a present state of an accumulator check to a first state, determining first target open and closed states for valves of a suspension system based on the present state being set to the first state, selectively opening and closing the valves according to the first target open and closed states, respectively, when the valves are in the first target open and closed states, respectively, selectively operating an electric pump in a first direction and increasing a pressure of hydraulic fluid in a first portion of the suspension system including an accumulator, selectively opening one or more of the valves and decreasing the pressure in the first portion after the increasing, selectively recording the pressure in the first portion based on a second derivative of the pressure while the pressure is decreasing, and selectively diagnosing a fault in the accumulator based on the recorded pressure.
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
12.
METHOD OF PRESSURIZING A FLOATING PISTON ACCUMULATOR
A method of pressuring an accumulator including an end cap and a floating piston comprises positions the floating piston outside an inner volume of the end cap. Pressurized gas is supplied to the inner volume through an open end of the end cap. The floating piston is inserted through the open end and sealing engagement with the end cap to define a pressurized gas chamber within the end cap. The method further includes mechanically deforming the end cap to define a radially inwardly extending projection that restricts removal of the floating piston from the end cap.
F15B 1/24 - Accumulators using a gas cushionGas charging devicesIndicators or floats therefor with rigid separating means, e.g. pistons
F15B 1/02 - Installations or systems with accumulators
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 13/00 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
13.
Vehicle suspension system with passive and active roll control
A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first longitudinal hydraulic line extends between and connects the first and third hydraulic circuits and a second longitudinal hydraulic line extends between and connects the second and fourth hydraulic circuits. A single bi-directional pump is connected in-line with a fluid distribution line that extends between and connects the first and second longitudinal hydraulic lines a can pump fluid in opposite directions through the fluid distribution line to provide active roll stiffness.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
14.
Vehicle suspension system with one or more frequency dependent roll stiffness valves
A suspension system including four dampers, a first hydraulic circuit with a front hydraulic line, a rear hydraulic line, and a first longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the first hydraulic circuit, and a second hydraulic circuit with a front hydraulic line, a rear hydraulic line, and a second longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the second hydraulic circuit. One or more frequency dependent valves are connected to and control fluid flow between the first and second hydraulic circuits. The frequency dependent valves are configured to open and hydraulicly decouple the dampers by permitting fluid flow between the first and second hydraulic circuits in response to high frequency suspension impacts.
B60G 21/10 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces not permanently interconnected, e.g. operative only on acceleration, only on deceleration, or only at off-straight position of steering
A method of charging a bellows accumulator for a vehicle suspension system comprises providing an outer shell with an accumulator port and a gas charging port, and inserting a bellows assembly within the outer shell. The bellows assembly includes an annular bellows wall at least partially defining a gas chamber of variable volume. The bellows assembly is axially extendable between a retracted position and a fully extended position. The gas chamber is arranged in fluid communication with the gas charging port. An accumulation chamber is provided between the outer shell and the bellows assembly and is in fluid communication with the accumulator port. The method further includes evacuating the accumulation chamber when the bellows assembly is not at the fully extended position to obtain a pressure within the accumulation chamber less than atmospheric pressure and supplying pressurized gas to the gas charging port.
A damper assembly includes a cylinder defining a chamber. The damper assembly includes a body supported by the cylinder and having a first surface and a second surface opposite the first surface. The body defines a passage extending from the first surface to the second surface. One of the first surface or the second surface define a slope at the passage. The damper assembly includes a check disc at the slope, the check disc selectively restricting fluid flow through the passage.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
F16F 9/50 - Special means providing automatic damping adjustment
17.
Single axle roll control system with multiple pressurizing devices arranged in series
A single axle suspension system including right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits, and a second pressurizing mechanism connected in series with the first pressurizing mechanism. The first pressurizing mechanism provides roll control by generating a pressure differential between the first and second hydraulic circuits. This causes an increase in the fluid pressure inside either the first working chamber of the right damper and the second working chamber of the left damper or inside the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering. The second pressurizing mechanism adjusts static pressure within the first and second hydraulic circuits by adding and removing hydraulic fluid to and from the first and second hydraulic circuits.
B60G 9/02 - Resilient suspensions for a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
18.
Vehicle suspension system with multiple modes of operation
A suspension system including four dampers is disclosed where each damper includes a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front left and back right dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the front right and back left dampers. A first bi-directional pump is connected between the first and second hydraulic circuits and a second bi-directional pump is connected between the third and fourth hydraulic circuits. The first and second bi-directional pumps can either pump in the same direction or in opposite directions. The level of pitch and roll stiffness can be adjusted by running the first and second bi-directional pumps to change the pressure in select hydraulic circuits of the system.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first bi-directional pump is connected in-line with a first longitudinal hydraulic line that extends between the first and third hydraulic circuits and a second bi-directional pump is connected in-line with a second longitudinal hydraulic line that extends between the second and fourth hydraulic circuits. The first and second bi-directional pumps can pump independently on one another, in the same direction at the same time, or in opposite directions at the same time. The level of pitch and roll stiffness can be adjusted by running the first and second bi-directional pumps to change the pressure in select hydraulic circuits of the system.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
A single axle suspension system including right and left dampers, first and second hydraulic circuits, and a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits. The first pressurizing mechanism includes a dual chamber ball/screw mechanism to adjust the volumetric capacity of a pair of first and second variable volume chambers that are arranged in fluid communication with the first and second hydraulic circuits. Thus, the first pressurizing mechanism provides roll control by generating a pressure differential between the first and second hydraulic circuits, which causes an increase in the fluid pressure inside either the first working chamber of the right damper and the second working chamber of the left damper or inside the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering.
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
B60G 9/02 - Resilient suspensions for a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
21.
Vehicle suspension system with passive and active roll control
A suspension system including four dampers each having a compression chamber and a rebound chamber. First and second hydraulic circuits interconnect the compression and rebound chambers of the front dampers, while third and fourth hydraulic circuits interconnect the compression and rebound chambers of the back dampers. A first longitudinal hydraulic line extends between and connects the first and third hydraulic circuits and a second longitudinal hydraulic line extends between and connects the second and fourth hydraulic circuits. A first bi-directional pump is connected in-line with a fluid distribution line that extends between and connects the first and second longitudinal hydraulic lines a can pump fluid in opposite directions through the fluid distribution line to provide active roll stiffness.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A single axle suspension system including right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism connected in fluid communication with the first and second hydraulic circuits, and a second pressurizing mechanism connected in series with the first pressurizing mechanism. The first pressurizing mechanism is a gerotor pump that provides roll control by generating a pressure differential between the first and second hydraulic circuits, which increases fluid pressure inside either the first working chamber of the right damper and the second working chamber of the left damper or inside the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering. The second pressurizing mechanism adjusts static pressure within the first and second hydraulic circuits by adding and removing hydraulic fluid to and from the first and second hydraulic circuits.
B60G 9/02 - Resilient suspensions for a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
F15B 21/00 - Common features of fluid actuator systemsFluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
23.
PISTON FOR SHOCK ABSORBER WITH OPTIMIZED BLEED RANGE AND TUNEABILITY
A shock absorber for a vehicle including a pressure tube, a piston rod, and a piston assembly. The piston assembly includes a first disc, a second disc, and a piston body. The piston body includes first and second surfaces and first and second fluid passages. The piston body further includes a first circumferential land surrounding the first fluid passage and a second circumferential land surrounding the second fluid passage. The first circumferential land is located a first distance from the first surface. The first disc is selectively driven into engagement with the first circumferential land. The second circumferential land is located a second distance from the first surface. The second circumferential land is between the first surface and the first circumferential land. The second disc includes a first portion in sealing engagement with the second circumferential land and a second portion spaced apart from the piston body.
A shock absorber for a vehicle including a pressure tube defining a fluid chamber, a piston body disposed within the fluid chamber, and a valve assembly. The piston body divides the fluid chamber into an upper working chamber and a lower working chamber. The piston body defines a first bleed passage and a first blowoff passage that each extend through the piston body between the upper working chamber and the lower working chamber. The valve assembly includes a restriction disc including a ring, a first finger extending radially outward from the ring, and a second finger extending radially outward from the ring. The first finger is configured to cover the first bleed passage, the first finger having a first bleed orifice, wherein the first bleed orifice remains open regardless of position of the restriction disc. The second finger is configured to at least partially cover the first blowoff passage.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A shock absorber for a vehicle including a pressure tube defining a fluid chamber, a piston disposed within the fluid chamber and including a fluid passage, and a valve assembly. The valve assembly includes a restriction disc, an orifice disc, a fulcrum disc, and a check disc. The restriction disc includes a first ring, a first finger, and a first orifice. The first finger covers the fluid passage. The orifice disc includes a second ring, a second finger, and a second orifice. The second finger overlaps the first finger, and the second orifice is aligned with the first orifice. The check disc includes a third ring and a third finger above the second finger. The fulcrum disc has a fourth ring. Modifying the outer diameter of the third ring and the outer diameter of the fourth ring alters a damping response of the shock absorber.
A valve arrangement for improved high frequency performance comprises: a valve seat member adapted in size and shape to define a valve seat and a flow-through opening; a valve member adapted to be displaceable relative the valve seat along a displacement axis during use in response to a damping fluid pressure force overcoming an opening force threshold, wherein the damping fluid pressure force is provided by damping fluid pressure acting on an inlet side of the valve member, the opening force threshold being at least partly adjustable by a force actuator, wherein the valve member and the valve seat member are adapted to provide a chamfer restriction provided with an opening cross-section which decreases from an inner lateral position to an outer lateral position relative the displacement axis. A shock absorber comprising the valve arrangement and a method for adjusting damping fluid flow are disclosed.
A suspension system including hydraulic circuits that extend between dampers located at opposite corners of the vehicle and at least one load distribution unit that is connected in fluid communication with at least two hydraulic circuits. The load distribution unit includes a manifold block with a cylinder bore, a pair of pressure tubes, a piston rod assembly, and an integral rod guide and pressure tube coupler. The pressure tubes are partially received in the cylinder bore to define a pair of opposed cylinders and mate with the integral rod guide and pressure tube coupler. The piston rod assembly includes a piston rod and a pair of opposed pistons that are slidingly received within the opposed cylinders. In addition to retaining the pressure tubes, the integral rod guide and pressure tube coupler supports and permits the piston rod to slide longitudinally relative to the manifold block.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
28.
Coil assembly for an actively controlled damping valve assembly of a vehicle
The present disclosure relates to a coil assembly for an actively controlled damping valve assembly of a vehicle, comprising: a mating surface for mating with an inner surface of a cavity of a valve housing of the damping valve assembly, and a fixation member configured for axially and rotationally locking the coil assembly with said valve housing, wherein the fixation member is adapted with an outer surface of substantially circular geometry comprising two or more protuberances circumferentially spaced apart and defining press-fit interference points with the inner surface of the cavity such that the coil assembly is axially and rotationally lockable to the valve housing irrespective whether the coil assembly is inserted into the valve housing in a first axial rotational orientation or an at least second axial rotational orientation relative the valve housing different from the first axial rotational orientation. An actively controlled damping valve assembly or a vehicle and a method of mounting the coil assembly in such damping valve assembly is also disclosed.
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
29.
Dual tube load distribution unit for vehicle suspension system
A suspension system including hydraulic circuits that extend between dampers located at opposite corners of the vehicle and at least one load distribution unit that is connected in fluid communication with at least two hydraulic circuits. The load distribution unit includes a manifold block with a cylinder bore, a pair of pressure tubes, a piston rod assembly, and a pair of reserve tubes. The pressure tubes are partially received in the cylinder bore to define a pair of opposed cylinders. The piston rod assembly includes a piston rod and a pair of opposed pistons that are slidingly received within the opposed cylinders. The reserve tubes are at least partially received in the cylinder bore and are arranged annularly about the pressure tubes to define a first pair of reservoir chambers between the pressure tubes and the reserve tubes.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 21/06 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
A damper including a tube, a piston, and a base line valve. The base line valve arranged in fluid communication with at least one of a first and second working chamber of the tube. The base line valve includes a housing, a plug slidably disposed in the housing along a valve axis between open and closed positions, and a spring. The plug includes a plug nose extending through an opening of the housing. The plug nose includes a first annular surface and a second annular surface. The first annular surface being sealingly engaged with a seat of the housing when the plug is in the closed position. The second annular surface being positioned radially inward of the seat by a first dimension when the plug is in the closed position and by a second dimension greater than the first dimension when the plug is in the open position.
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
F16K 15/02 - Check valves with guided rigid valve members
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A suspension system comprises first and second dampers including first and second compression and rebound chambers. A first hydraulic circuit includes a first hydraulic line fluidly connecting the first rebound chamber of the first damper and the second compression chamber of the second damper. A second hydraulic circuit includes a second hydraulic line fluidly connecting the first compression chamber of the first damper and the second rebound chamber of the second damper. A proportional pressure accumulator in fluid communication with at least one of the first and second hydraulic circuits includes an accumulation chamber, a pressurized gas chamber and a volume varying mechanism. The volume varying mechanism selectively varying a volume of the pressurized gas chamber to vary a pressure within the pressurized gas chamber and change a fluid pressure within at least one of the first and second hydraulic circuits.
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
A single axle suspension system including right and left dampers, first and second hydraulic circuits, one or more pressurizing mechanisms with a variable volume chamber that is connected in fluid communication with the first or second hydraulic circuits, and a bi-directional pump with a first impeller that is arranged in fluid communication with the first hydraulic circuit, a second impeller that is arranged in fluid communication with the second hydraulic circuit, and a motor that is configured to drive rotation of the first and second impellers to simultaneously pump the hydraulic fluid through the first and second hydraulic circuits in opposite directions. Each pressurizing mechanism includes a driven piston that is moveable in first and second directions to increase and decrease the volume of the variable volume chamber and therefore increase and decrease static pressure within the first and/or second hydraulic circuits independent of damper movements.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A single axle suspension system that includes right and left dampers, first and second hydraulic circuits, a first pressurizing mechanism that is connected in fluid communication with the first hydraulic circuit, and a second pressurizing mechanism that is connected in fluid communication with the second hydraulic circuit. The first and second pressurizing mechanisms are configured to provide active roll control by adding and removing hydraulic fluid to and from the first and second hydraulic circuits to increase and decrease pressure inside the first and second hydraulic circuits independent of damper movements. This in turn causes a simultaneous increase in the fluid pressure inside either the first working chamber of the right and the second working chamber of the left damper or the first working chamber of the left damper and the second working chambers of the right damper to provide roll stiffness that counters vehicle roll during cornering.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
A damping control system includes: a damping chamber connected to one of (a) a body of a vehicle and (b) a wheel of the vehicle; a piston that is slidably disposed within the damping chamber and that includes: a piston rod that is connected to the other one of (a) the body of the vehicle and (b) the wheel of the vehicle; and a plunger that is connected to the piston rod and that divides the damping chamber into a first chamber and a second chamber; a first valve that regulates hydraulic fluid flow out of the first chamber; and a valve control module configured to selectively close the first valve when a position of the plunger is between (a) a first reference position within the first chamber and (b) a first end stop of the damping chamber that defines a boundary of the first chamber.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
A bellows accumulator for a vehicle suspension system and related methods of operating the accumulator include inserting a bellows assembly within an outer shell. The bellows assembly includes an annular bellows wall defining a gas chamber of variable volume. An accumulation chamber is provided between the outer shell and the bellows assembly. The method includes operating a valve in fluid communication with the accumulation chamber in an open condition and a closed condition, filling the accumulation chamber with fluid prior to filling the gas chamber with pressurized gas, providing a pressure differential between the pressurized gas chamber and the accumulation chamber to extend the annular bellows wall and operate the valve in the closed condition. The method includes protecting the bellows wall during pre-charging of the pressurized gas chamber as well as during vehicle suspension operation by maintaining fluid between the outer shell and the annular bellows wall.
F16F 9/04 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only in a chamber with a flexible wall
36.
Protection plugs with bidirectional pressurizing functionality for shock absorber
A hydraulic port protection plug for insertion into a hydraulic port in a shock absorber assembly, where the hydraulic port protection plug comprises a cap portion with a disc-shaped end wall and a tubular body that extends from the cap portion to define an open-ended cavity. The open-ended cavity extends within the tubular body of the hydraulic port protection plug and is bounded at one end by the cap portion. A self-closing pressure relief opening extends through the cap portion and is arranged in fluid communication with the open-ended cavity. At least a portion of the cap portion is made of an elastic material that permits the self-closing pressure relief opening to open and close in response to pressure changes.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
37.
HYDRAULIC PORT PROTECTION PLUGS FOR SHOCK ABSORBERS
Hydraulic port protection plugs for insertion into hydraulic ports in a shock absorber to prevent contaminants from entering the shock absorber and residual oil from draining out through the hydraulic ports during storage, shipping, and handling of the shock absorber. The hydraulic port protection plugs comprise a tubular body and a pierceable seal that is configured to receive an inboard portion of a hydraulic fitting. The pierceable seal is designed so that the inboard portion of the hydraulic fitting may be inserted through the pierceable seal of the hydraulic port protection plug and into the hydraulic port in the shock absorber such that the hydraulic port protection plug does not have to be removed and seals the hydraulic fitting within the hydraulic port in the shock absorber in an installed position.
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 21/06 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/43 - Filling arrangements, e.g. for supply of gas
38.
Method of attenuating longitudinal acceleration oscillations of a vehicle body
An oscillation control system of a vehicle includes a distribution control module configured to determine: a first front torque request for one or more front electric motors of the vehicle; and a first rear torque request for one or more rear electric motors of the vehicle; a first control module configured to: determine a second front torque request for the front electric motor(s) of the vehicle based on the first front torque request and a front wheel road profile; and control power flow to the front electric motor(s) based on the second front torque request; a second control module configured to: determine a second rear torque request for the rear electric motor(s) of the vehicle based on the first rear torque request and a rear wheel road profile; and control power flow to the rear electric motor(s) based on the second rear torque request.
B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
B60K 23/08 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels
B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
B60W 10/08 - Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
B60W 10/22 - Conjoint control of vehicle sub-units of different type or different function including control of suspension systems
The present disclosure relates to a valve arrangement for a shock absorber. The valve arrangement comprises a valve housing comprising a first and a second port and a pilot chamber being in fluid communication with said first and/or second port, a pilot pressure is defined by a hydraulic pressure in said pilot chamber, a main valve member being axially movably along a longitudinal axis in said valve housing in order to restrict a main fluid flow between said first and second ports in response to said pilot pressure acting on said main valve member. Further, the main valve member is resiliently loaded in a steady-state position from where it is movable in both directions along the longitudinal axis and is configured to, during an initial pressure increase of the main fluid, move in a direction away from the pilot chamber. The disclosure further relates to a method for controlling a damping medium flow in a shock absorber.
F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
40.
Damper Assembly Including Intake Valve In Fluid Chamber
A damper comprises an inner tube having a longitudinal axis with a piston slidably disposed in the inner tube. An outer tube surrounds the inner tube and defines a fluid chamber therebetween. A first valve assembly includes a first valve ring and a first valve disc fixed to the first valve ring. The first valve disc covers a first passageway to restrict flow therethrough in a first direction and allow flow in an opposite second direction. A second valve assembly includes a second valve ring and a second valve disc fixed to the second valve ring. The second valve disc covers a second passageway through the second valve ring to restrict flow therethrough in the second direction and allow flow in the first direction. The first valve assembly is axially spaced apart from the second valve assembly.
A damper includes an inner tube elongated along an axis, a piston slidably disposed in the inner tube, and an outer tube surrounding the inner tube. The inner tube and outer tube define a fluid chamber therebetween. The damper includes and intake assembly in the fluid chamber. The intake assembly includes a unitary support ring and pair of fulcrum spacers, a support post fixed to and extending along the axis away from the unitary support ring and pair of fulcrum spacers, and a valve ring supported by the support post. The valve ring defines an orifice. A valve disc is supported by the support post between the valve ring and the unitary support ring and pair of fulcrum spacers. The valve disc covers the orifice of the valve ring.
B60G 13/06 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type
B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
42.
Insert arrangement and a method of assembling a damping arrangement
The present application relates to an insert arrangement for engaging with a solenoid arrangement and for closing a valve cavity of a damping arrangement. The insert arrangement comprises: an armature member adapted in shape and size to provide a base portion and an axial portion extending out of the base portion in a direction parallel to a first axis, a casing member adapted to extend around the axial portion to define a receiving space between the axial portion and the casing member. The solenoid arrangement is at least partly arrangeable in said receiving space, and the casing member is further adapted with a magnetically conducting material for substantially closing a magnetic field generated by the solenoid arrangement. The insert arrangement further comprises fixating means for fixating the armature member to the damping arrangement, wherein said fixating means are arranged on the casing member.
F16K 27/02 - Construction of housingsUse of materials therefor of lift valves
F16F 15/03 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using electromagnetic means
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
43.
Damper assembly including intake valve in fluid chamber
A damper assembly includes an inner tube and an outer tube enclosing respective first and second chambers and defining respective first and second side openings. The assembly includes a housing supported by the outer tube and having an open bottom with a lip extending radially inward. The assembly includes a unitary connector engaged with the first side opening and axially extending away from the inner tube through the second side opening and the open bottom. The unitary connector is radially spaced from the outer tube at the second side opening and from the housing above the inner surface. The unitary connector abuts an inner surface of the lip of the housing and defines passages open to the first chamber and to the second chamber. The unitary connector includes a valve seat surrounding one of passages.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A damper includes a piston arranged in sliding engagement inside a pressure tube. The piston divides the pressure tube into a first working chamber and a second working chamber. A hydraulic compression stop assembly is positioned within the second working chamber and includes a plunger arranged in sliding engagement with a sleeve. The plunger includes a bumper cavity having a side wall. The bumper cavity extends a cavity depth from an end face of the plunger. The bumper cavity is in receipt of a compliant bumper. The bumper includes a bumper height greater than the cavity depth such that a portion of the bumper protrudes from the bumper cavity. The protruding bumper portion limits a maximum amount the bumper may be compressed before the sidewall is loaded by one of the piston and a piston rod.
F16F 9/49 - Stops limiting fluid passage, e.g. hydraulic stops
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
45.
VEHICLE-SUSPENSION SHOCK ABSORBER INCLUDING INTERNAL FORCE DISTRIBUTION
A shock absorber for a suspension system of a vehicle includes an intermediate tube on an inner tube defining an intermediate chamber between the inner tube and the intermediate tube. The shock absorber includes an outer tube and the inner tube and the intermediate tube are in the outer tube. The outer tube defines a reserve chamber between the outer tube and the intermediate tube. A valve fluidly connects the intermediate chamber and the reserve chamber. An elongated slot is in the outer tube between the valve and the reserve chamber.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
46.
Vehicle-suspension shock absorber including transfer ring for controllable valve
A shock absorber for a suspension system of a vehicle includes a transfer ring fluidly connecting an intermediate chamber and the valve. The transfer ring includes a body and a seal unit. The seal unit includes a first seal, a second seal, and a connector. The first seal is between the transfer ring and the intermediate tube. The second seal is between the transfer ring and the valve. The connector is connected to the first seal and the second seal. The connector extends through the body from the first seal to the second seal.
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
An air-spring assembly includes a flexible bellows extending from a top end to a bottom end and enclosing an air-spring chamber between the top end and the bottom end, a first panel partially defining the air-spring chamber and movable in response to a pressure of the air-spring chamber, an enclosure partially defining a working chamber fluidly isolated from the air-spring chamber, a second panel partially defining the working chamber and movable relative to the enclosure, and a linkage member fixed relative to the first panel and to the second panel and defining a fixed distance between the first panel and the second panel. The top and bottom ends are fixable to a frame and a wheel of a vehicle, respectively. A volume of the air-spring chamber varies with movement of the bottom end relative to the top end. Movement of the second panel changes a volume of the working chamber.
B60G 11/27 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
B60G 11/30 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
A damper includes an outer tube elongated along an axis, a cylinder elongated along the axis within the outer tube, a piston disposed in the cylinder and movable along the axis, an intermediate tube attached concentrically around the cylinder, a ring press-fitted around an outer diameter of the intermediate tube, and a valve attached to the outer tube. The intermediate tube and the cylinder define an intermediate chamber radially between the cylinder and the intermediate tube. The valve is in fluid communication with the intermediate chamber. The intermediate tube includes an intermediate-tube opening extending radially through the intermediate tube. The ring includes a ring opening extending radially through the ring. The ring opening is aligned with the intermediate-tube opening. The valve is in fluid communication with the intermediate chamber through the ring opening and the intermediate-tube opening.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/50 - Special means providing automatic damping adjustment
49.
Hydraulic fluid reservoir including a flexible housing
A hydraulic fluid reservoir fluidly couple to a shock absorber. The hydraulic fluid reservoir having a flexible housing, a fluid channel, and a pump provided along the fluid channel. The flexible housing having a flexible wall defining a first interior, with the first interior a variable volume of hydraulic fluid and no air. The fluid channel fluidly coupling the first interior with the shock absorber. The pump being configured to move the flow of hydraulic fluid into or out of the flexible housing. The flexible housing being configured to move between a first position and a second position.
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A damper including inner and outer tubes is provided. A piston is slidably disposed within the inner tube. An intermediate tube is positioned radially between the inner and outer tubes. An intermediate channel is disposed radially between the intermediate and inner tubes. A slanted elliptical seal is positioned at an oblique angle relative to a longitudinal axis of the inner tube and divides the intermediate channel into first and second intermediate channel portions. A first control valve is in fluid communication with the second intermediate channel portion via a first intermediate tube opening. A second control valve is in fluid communication with the first intermediate channel portion via a second intermediate tube opening.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
51.
Hydraulic damper having a pressure tube and a ring
A ring circumscribing a moveable rod of a hydraulic damper. The movable rod defining an axis. The ring comprising a first wall, a second wall, an inner wall, an outer wall and a fluid passage. The fluid passage comprising a first channel extending radially along the second wall from the inner wall, with respect to the axis The fluid passage further comprising a second channel.
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
52.
Vehicle control systems and methods based on trailer hitch joint forces
A trailer sway control system for a vehicle includes: a front left active suspension actuator; a front right active suspension actuator; a rear left active suspension actuator; a rear right active suspension actuator; and an actuator control module configured to: based on (a) a first hitch force at a trailer hitch in a longitudinal direction, (b) a second hitch force at the trailer hitch in a lateral direction, and (c) a third hitch force at the trailer hitch in a vertical direction, determine target vertical forces for the front left active suspension actuator, the front right active suspension actuator, the rear left active suspension actuator, and the rear right active suspension actuator, respectively; and selectively adjust the front left active suspension actuator, the front right active suspension actuator, the rear left active suspension actuator, and the rear right active suspension actuator based on the target vertical forces, respectively.
A damper with a pressure tube and an outer tube, a piston rod extending between first and second piston rod ends, and a piston mounted to the second piston rod end. The piston is disposed within the pressure tube to define rebound and compression chambers. A reservoir chamber is positioned between the pressure tube and the outer tube and an intake valve assembly, abutting one end of the pressure tube inside the outer tube, defines at least one intermediate chamber that is arranged in fluid communication with at least one externally mounted, electro-mechanical control valve. A rebound chamber pressure relief valve, in the form of a poppet positioned inside the piston and piston rod end, releases excess fluid pressure in the rebound chamber. A compression chamber pressure relief valve, in the form of a poppet positioned inside the intake valve assembly, releases excess fluid pressure in the compression chamber.
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
54.
Valve Arrangement, Valve Device, Shock Absorber And Method Of Regulating Pressure In A Fluid Flow
A valve arrangement regulates a pressure in a hydraulic fluid flow in a valve device in response to an actuating force during an active control operation and mechanically regulates the pressure during a fail-safe operation when no actuating force is present. The valve arrangement comprises a first spring member adapted to be arranged in a valve chamber of the valve device to interact with a valve seat to provide a first restriction by which the hydraulic fluid flow is restricted during active control operation, and a second spring member adapted to be arranged in the valve chamber to provide a second restriction by which the hydraulic fluid flow is restricted during fail-safe operation. During active control operation, an active control flow channel is open. During fail-safe operation, the active control flow channel is substantially closed by means of the first spring member.
A damper assembly includes a pressure tube forming a chamber, a piston assembly disposed in the chamber and dividing the chamber into two subchambers, and a piston rod fixed to the piston assembly. The piston assembly includes a body having an inner bore extending axially through the body. The piston assembly includes a blowoff disc contacting the body at the inner bore and having a throughhole aligned with the inner bore. The piston rod extends through and concentrically contacts the inner bore and the throughhole. The body has a groove extending axially along a length of the inner bore. The groove and the piston rod form a passageway permitting fluid to travel across the body. The blowoff disc has a notch extending from the throughhole and arranged to permit fluid from the passageway to pass across the blowoff disc.
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
B60G 13/06 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type
56.
Bellows accumulator fixation apparatus for suspension dampers
An accumulator for a vehicle suspension damper, which includes an outer shell with an open end that connects to an accumulator port on the damper and a distal end, opposite the open end, which includes an end wall that extends radially inward to a gas charging port. A bellows assembly, which includes an annular bellows wall extending between proximal and distal plates, is positioned inside the outer shell to define a pressurized gas chamber inside the accumulator that is arranged in fluid communication with the gas charging port. The gas charging port includes a stem that extends inwardly from the end wall of the outer shell and the distal plate of the bellows assembly has an inner diameter that is received on the stem. The inner diameter of the distal plate is coupled to the stem of the gas charging port by a fixation component.
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
B60G 13/10 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type pneumatic
A method of assembling an accumulator for a suspension damper where the method includes the steps of forming an outer shell of an accumulator, assembling a bellows assembly by connecting distal and proximal plates to opposite ends of an annular bellows wall, and inserting the bellows assembly into the outer shell. The outer shell is formed such that it includes a distal end with an end wall and an open end opposite the distal end. The bellows assembly is inserted into the open end of the outer shell with the distal plate facing the end wall of the outer shell. The method proceeds with coupling the distal plate of the bellows assembly to a stem of a gas charging port on the end wall of the outer shell at a fixed axial position using a fixation component that engages the stem of the gas charging port.
B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
F16F 9/02 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/43 - Filling arrangements, e.g. for supply of gas
A damper assembly includes a cylinder defining a chamber. The damper assembly includes a body supported by the cylinder and having a first surface and a second surface opposite the first surface. The body defines a passage extending from the first surface to the second surface. One of the first surface or the second surface define a slope at the passage. The damper assembly includes a check disc at the slope, the check disc selectively restricting fluid flow through the passage.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
F16F 9/50 - Special means providing automatic damping adjustment
The present disclosure provides a method of manufacturing a damper for a vehicle. The method includes forming a groove on an outer surface of a first component in a first annular region. The first component is tubular. The method further includes inducing a compressive residual stress in a second annular region. The second annular region is at least partially aligned with the first annular region along a longitudinal axis of the first component. The method further includes coupling a second component to the first component. Surfaces of the first component and the second component directly engage one another at an interface. The second component is axially aligned with and radially surrounding at least a portion of the first annular region. In some configurations, forming the groove and inducing the compressive residual stress are performed concurrently, such as by low plasticity burnishing.
B60G 13/00 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
60.
Inertance-integrated damping system for wheel assembly bushings
A wheel assembly bushing for in-wheel electric motors where the bushing includes a hydraulic chamber positioned within a resilient sleeve of the bushing and a helical fluid channel that extends helically about an inner bushing member between first and second fluid channel ends, which are arranged in fluid communication with the hydraulic chamber. An outer body extends annularly about the resilient sleeve, which permits relative movement between the inner bushing member and the outer body. The fluid channel is configured to produce inertance. This inertance, when combined with other damping and stiffness effects of the wheel assembly bushing, provides phase and magnitude shifts between force and velocity, which ultimately reduce magnetic gap deformation in the in-wheel electric motor.
F16C 17/10 - Sliding-contact bearings for exclusively rotary movement for both radial and axial load
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/102 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
61.
Space saving pressure relief valves for suspension dampers
A damper with inner and outer tubes, a piston rod extending between first and second piston rod ends, and a piston mounted to the second piston rod end. The piston is disposed within the pressure tube to define rebound and compression chambers. A fluid transport chamber is positioned between the inner and outer tubes and an intake valve assembly, abutting one end of the pressure tube inside the outer tube, and defines at least one intermediate chamber that is arranged in fluid communication with at least one externally mounted, electro-mechanical control valve. A rebound chamber pressure relief valve, mounted inside the piston and piston rod end, releases excess fluid pressure in the rebound chamber. A compression chamber pressure relief valve, mounted inside the intake valve assembly, releases excess fluid pressure in the compression chamber.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/43 - Filling arrangements, e.g. for supply of gas
62.
Damper with a slanted elliptical seal between an intermediate tube and an inner pressure tube
A damper including inner and outer tubes is provided. A piston is slidably disposed within the inner tube. An intermediate tube is positioned radially between the inner and outer tubes. The intermediate tube extends between first and second intermediate tube ends. An intermediate channel is disposed radially between the intermediate and inner tubes. A slanted elliptical seal is positioned inside the intermediate channel and divides the intermediate channel into first and second intermediate channel portions. A first control valve is in fluid communication with the second intermediate channel portion via a first intermediate tube opening. A second control valve is in fluid communication with the first intermediate channel portion via a second intermediate tube opening. The slanted elliptical seal abuts the intermediate tube between the first intermediate tube opening and the first intermediate tube end and between the second intermediate tube opening and the second intermediate tube end.
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
A shock for a vehicle includes a tube elongated along an axis. A piston is disposed in the tube and is moveable relative to the tube along the axis. A rod is connected to the piston. A floating piston is spaced from the piston along the axis and is moveable relative to the tube along the axis. The tube defines a working chamber between the piston and the floating piston. The tube defines a gas chamber. The floating piston separates the gas chamber from the working chamber. The floating piston has a housing slideably engaged with the tube and a membrane fluidly separating the working chamber from the gas chamber. The membrane is flexible relative to the housing.
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A damper including inner and outer tubes and a control valve. A piston is slidably disposed within the inner tube to define first and second working chambers. An intermediate member assembly is disposed annularly about the inner tube. An intermediate channel is positioned radially between the intermediate member assembly and the inner tube and a reservoir channel is positioned radially between the intermediate member assembly and the outer tube. A first unidirectional blocking valve forms a first partition between first and second intermediate channel portions of the intermediate channel. A second unidirectional blocking valve forms a second partition between the second intermediate channel portion and a third intermediate channel portion. An external control valve has a control valve inlet that is arranged in fluid communication with the second intermediate channel portion.
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
G05D 7/01 - Control of flow without auxiliary power
A dirt shield for shock absorbers having a piston assembly and a cylinder member with a metal dirt shield cap connected to a rod of the piston assembly. A plastic dirt shield bracket is adapted to be fixed to the metal dirt shield cap and includes a first portion and a second portion hingedly connected to one another. A dirt shield tube is connected to the plastic dirt shield bracket.
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
66.
Hydraulic damper having a pressure tube and a ring
A ring circumscribing a moveable rod of a hydraulic damper, the moveable rod defining a central axis, the ring comprising a first circumferential surface, a second circumferential surface, a first finger, a second finger, a first flange, and a second flange. The first finger and the first flange defining a first end of the ring. The second finger and the second flange defining a second end of the ring.
F16F 9/49 - Stops limiting fluid passage, e.g. hydraulic stops
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A system for filling a tank of a suspension system with hydraulic fluid includes: a module configured to turn on an external pump and pump hydraulic fluid into the suspension system, where the external pump is separate from the suspension system and is configured to pump hydraulic fluid into the suspension system via a port fluidly connected to a hydraulic line of the suspension system; and a fill module configured to, after operating the external pump, operate a pump of the suspension system and pump hydraulic fluid from the hydraulic line into the tank of the suspension system thereby filling the tank.
B60G 99/00 - Subject matter not provided for in other groups of this subclass
B67D 7/02 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
A state module selectively sets a present state to a first state in a predetermined order of states; a valve control module determines first target open and closed states for valves of a suspension system based on the present state and opens and closes the valves according to the first target open and closed states, respectively; a pump control module configured to, when the valves are in the first target open and closed states, respectively, selectively operate an electric pump of the suspension system in a first direction and pump hydraulic fluid toward the suspension system; and a diagnosis module configured to: record first and second values of pressures within the suspension system measured using pressure sensors, respectively, before and after the operation of the electric pump in the first direction, respectively; and selectively diagnose faults in a first subset of the valves based on whether pressure increases occurred.
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
G01M 3/28 - Investigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for valves
A system includes: a state module configured to selectively set a present state to a first state; a valve control module configured to determine first target open and closed states for valves of a suspension system based on the present state and to open and close the valves of the suspension system according to the first target open and closed states, respectively; a pump control module configured to, when the valves are in the first target open and closed states, respectively, selectively operate an electric pump of the suspension system in a first direction and increase a pressure of hydraulic fluid in a first portion of the suspension system including an accumulator, where the valve control module is configured to decrease the pressure in the first portion after the increase; and a diagnosis module configured to selectively diagnose a fault in the accumulator based on a pressure during the decrease.
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 13/14 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers accumulating utilisable energy, e.g. compressing air
70.
Suspension system integration with advanced driver assistance system
A suspension system and associated control methods for improving the effectiveness of driver assistance systems is disclosed where the driver assistance systems can generate and send requests to a suspension control unit (SCU) of the suspension system to actuate (e.g., close) one or more comfort valves in the suspension system to increase the roll stiffness and/or pitch stiffness of the suspension system when the driver assistance systems are taking corrective action. As part of a two-way communication between the suspension control unit (SCU) and the driver assistance systems, the suspension control unit (SCU) communicates target stiffnesses and/or calculated effective stiffnesses to the driver assistance systems, which is used to update the vehicle stability models used by the driver assistance systems.
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/0195 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the regulation being combined with other vehicle control systems
A suspension system and associated control methods that reduce temperature related fluctuations in the internal pressures and stiffness of the suspension system. A manifold assembly is connected in fluid communication with a plurality of dampers via hydraulic circuits and a pump assembly via a pump hydraulic line. Onboard sensors generate real-time data regarding the vehicle. A suspension control unit, arranged in electronic communication with the aforementioned components, monitors the real-time data, sets a target stiffness and a target pressure, calculates an effective stiffness based on the real-time data, determines if the effective stiffness is above or below the target stiffness and sets a new target pressure accordingly by making stepwise decreases or increases until the new target pressure is reached.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
72.
Control systems and methods for suspension systems
A control system includes: a target volume module configured to determine a target volume of hydraulic fluid within a suspension system of a vehicle based on a target pressure of the hydraulic fluid within the suspension system; a volume command module configured to generate a volume command based on the target volume and a present volume of the hydraulic fluid within first and second circuits; a command module configured to, based on the volume command, generate: a pump command for an electric hydraulic fluid pump; and first and second valve commands for first and second seat valves that regulate hydraulic fluid flow to and from the first and second circuits, respectively; a valve control module that actuates the first and second seat valves based on the first and second valve commands, respectively; and a pump control module that controls operation of the pump based on the pump command.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
A suspension system including four dampers is disclosed where each damper includes a compression chamber and a rebound chamber. A first hydraulic circuit includes a front hydraulic line, a rear hydraulic line, and a first longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the first hydraulic circuit. A second hydraulic circuit includes a front hydraulic line, a rear hydraulic line, and a second longitudinal hydraulic line that extends between and fluidly connects the front and rear hydraulic lines of the second hydraulic circuit. First and second longitudinal comfort valves are positioned in the first and second longitudinal hydraulic lines, respectively, between the front and rear hydraulic lines. Both of the first and second longitudinal comfort valves are electromechanical valves and can be actuated to couple and decouple front axle roll control from rear axle roll control.
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
B60G 21/00 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
A rinsing system includes: a pump control module configured to, when a hydraulic line is connected to a port that is fluidly connected to a hydraulic line of a suspension system, selectively operate a hydraulic fluid pump of the suspension system and pump hydraulic fluid from a hydraulic fluid tank of the suspension system through the hydraulic fluid pump toward the hydraulic line; and a valve control module configured to, when the hydraulic line is connected to the port and the hydraulic fluid pump is pumping hydraulic fluid, open valves of the suspension system and fluidly connect the hydraulic fluid pump with the hydraulic line.
B60G 21/06 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid
B60G 21/067 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on different axles on the same side of the vehicle, i.e. the left or the right side
B60G 21/073 - Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected fluid between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
F04B 49/03 - Stopping, starting, unloading or idling control by means of valves
A system for grading filling of a suspension system includes: a pump control module configured to, during first and second periods, operate an electric pump of the suspension system in first and second directions and decreasing and increasing hydraulic fluid pressure within the suspension system, respectively; a monitoring module configured to: store a first pressure of hydraulic fluid within the suspension system measured using a pressure sensor when the first pressure is less than or equal a first predetermined pressure while the pump is operated in the first direction; and store a second pressure measured using the pressure sensor when the second pressure is greater than or equal a second predetermined pressure while the pump is operated in the second direction; and a grade module configured to determine a grade value for the filling of the suspension system based on the first and second pressures.
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
A system includes: a state module configured to selectively set a present state to a first state; a valve control module configured to determine first target open and closed states for valves of a suspension system based on the present state and to open and close the valves according to the first target open and closed states, respectively; a pump control module configured to, when the valves are in the first target open and closed states, respectively, selectively operate an electric pump in a first direction to increase hydraulic fluid pressure in a first portion of the suspension system; and a leak module configured to selectively diagnose a leak in a first one of the valves associated with the first state based on a first pressure in the first portion of the suspension system while the valves are open and closed according to the first target open and closed states.
B60G 17/0185 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method for failure detection
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
77.
Suspension system with roll and pitch stiffness deactivation based on road profile information
A suspension system and associated control methods for improving comfort by disabling passive pitch stiffness in the suspension system by holding open electromechanical comfort valves positioned in a manifold assembly of the suspension system. The manifold comfort valves are held open to disable the passive pitch stiffness of the suspension system if the vehicle is traveling down a rough road or if the vehicle is approaching a discrete road event like a pot-hole or speed bump. Deactivation of the passive pitch stiffness of the suspension system is determined based on road classification information, saved road events, and/or real-time vehicle data from on-board sensors. The suspension system therefore reduces pitch angles during pitch events induced by inertial forces caused by driver inputs and disables the pitch stiffness when the pitch event is caused by road inputs.
B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
B60G 17/015 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
78.
Suspension system with comfort valves between cross-over hydraulic circuits
A suspension system including four dampers where each damper includes compression and rebound chambers. The suspension system has four hydraulic circuits, each including a cross-over hydraulic line that extends between dampers located at opposite corners of the vehicle (i.e., between the front left and back right dampers or between the front right and back left dampers). The suspension system further includes four electromechanical comfort valves that open and close four bridge hydraulic lines that extend between the cross-over hydraulic lines at each corner of the vehicle. Each cross-over hydraulic line is connected to a manifold assembly by a corresponding manifold hydraulic line. The manifold assembly includes four manifold valves that are connected to a pump assembly and two manifold comfort valves. All six comfort valves are electromechanical valves that can be actuated to control the roll and pitch of the vehicle during cornering, braking, and acceleration.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A shock absorber for a vehicle includes a pressure tube containing a hydraulic fluid. The shock absorber further includes a piston rod extending within the pressure tube along a longitudinal axis, and including a piston end disposed within the pressure tube. The piston rod includes a rod chamber defined within the piston rod and extending along the longitudinal axis from an upper chamber end distal to the piston end to a lower chamber end proximal to the piston end. The piston rod further includes at least one first opening disposed proximal to the lower chamber end. The shock absorber further includes a first piston assembly, an auxiliary housing, and a damper assembly including a sleeve received within the rod chamber.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
A method for assembling a damper assembly includes securing a damper interface to an external surface of a pressure tube. The method includes securing an accumulator interface to an external surface of an accumulator tube. The method includes, after the damper interface is secured to the pressure tube and the accumulator interface is secured to the accumulator tube, securing the pressure tube to the accumulator tube by press fitting the damper interface to the accumulator interface.
An apparatus for applying torque to a body includes a base defining an inner chamber. The apparatus includes a plurality of pins supported by base and disposed in the inner chamber, the plurality of pins moveable relative to the base between engaged positions and disengaged positions. The apparatus includes a trigger actuatable to move at least one of the plurality of pins to the disengaged position.
B25B 23/142 - Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
B25B 23/14 - Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
B60G 13/00 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers
A shock absorber including a pressure tube, a piston assembly slidably disposed within the pressure tube, and a fluid transfer tube that extends about the pressure tube, and a reserve tube that extends about the fluid transfer tube is provided. The piston assembly divides an inner volume of the pressure tube into first and second working chambers. An intermediate chamber between the pressure tube and the fluid transfer tube is arranged in fluid communication with the first working chamber. A reservoir chamber between the fluid transfer tube is arranged in fluid communication with the intermediate chamber. An insert is disposed within the intermediate chamber, reducing the volume of the intermediate chamber and defining a fluid transfer channel between the first working chamber and the reservoir chamber.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
A damper assembly includes a rod elongated along an axis. The damper assembly includes a body supported by the rod, the body having a first surface and a second surface opposite the first surface. The body and the rod define a passage between the body and the rod, the passage extending from the first surface of the body to the second surface of the body.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
F16F 9/50 - Special means providing automatic damping adjustment
A system for a vehicle includes a memory storing a stored driver distribution profile of a driver input parameter and a stored suspension setting corresponding to the stored driver distribution profile. The system further includes a sensor to detect a current value of the driver input parameter. The system further includes a processor communicably coupled to the memory and the sensor. The processor is configured to determine a current driver distribution profile of the driver input parameter based on the current value of the driver input parameter. The processor is configured to determine a current suspension setting based on the current driver distribution profile. The processor is configured to adjust the stored suspension setting to generate a stored adjusted suspension setting corresponding to the current suspension setting.
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
85.
Methods and systems for using waste energy from electric motors and inverters in electric vehicle air suspension systems
An air suspension system according to the principles of the present disclosure includes a suspension actuator, a reservoir, a compressor, and a first cooling circuit. The suspension actuator has a chamber. The reservoir includes a shell and an adsorptive material. The shell at least partially defines an interior region. The interior region is fluidly connected to the chamber. The adsorptive material is in the interior region. The compressor is fluidly connected to the interior region. The first cooling circuit includes a first heat exchanger, a second heat exchanger, and a conduit. The first heat exchanger is in thermal contact with the interior region. The second heat exchanger is in thermal contact with an electric vehicle component. The conduit is adapted to circulate a fluid between the first heat exchanger and the second heat exchanger. The present disclosure also provides a method of operating the air suspension system.
B60G 17/00 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
B60G 11/27 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs wherein the fluid is a gas
F28D 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
An assembly for securing a component of a damper assembly includes a press movable along an axis from a retracted position to an extended position. The assembly includes a plurality of rollers rotatably supported at an end of the press. The rollers have an outer circumferential surface that includes a middle portion extending, in cross-section, transversely to the axis and linearly between an entry portion and a top portion of the outer circumferential surface.
B21D 39/04 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with tubesApplication of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes with rods
A damper comprises a pressure tube extending longitudinally between a first pressure tube end and a second pressure tube end, a piston arranged in sliding engagement inside the pressure tube, a piston rod coupled to the piston, a hydraulic rebound stop positioned in a first working chamber and including a sealing ring circumferentially extending around the piston rod and within the pressure tube. The sealing ring at least partially defining a high-pressure region within the pressure tube during a rebound stroke the damper further comprising a pressure relief valve in fluid communication with the high-pressure region. The pressure relief valve being operable to allow pressurized fluid from the high-pressure region to pass therethrough once a predefined pressure threshold has been reached.
F16F 9/48 - Arrangements for providing different damping effects at different parts of the stroke
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
F16K 15/04 - Check valves with guided rigid valve members shaped as balls
A suspension control system including a suspension control unit, an unsprung mass accelerometer positioned at each wheel of the vehicle, and a global positioning system. The suspension control unit determines if a road irregularity, such as a bump or pothole, is approaching based on vehicle location data, provides pre-emptive road event classification information for the approaching road irregularity, and sets both a threshold based suspension pre-setting and a threshold based pre-trigger based on the pre-emptive road event classification information. The suspension control unit monitors the unsprung mass acceleration data, calculates a slope value for the unsprung mass acceleration data, and activates a suspension control action if the unsprung mass acceleration data exceeds the threshold based pre-trigger and the slope value exceeds a maximum slope value.
B60G 17/0165 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input to an external condition, e.g. rough road surface, side wind
B60G 17/018 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the use of a specific signal treatment or control method
B60G 17/019 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by the type of sensor or the arrangement thereof
89.
Shock absorber with metal damper tube and composite mounting attachment and spring seat
A shock absorber having a metal damper tube and base assembly is provided. The base assembly, which includes a composite mounting attachment made of a composite material, such as a recyclable thermoplastic, is fixed to an external surface of the metal damper tube, which may be a finished product. A cavity in the composite mounting attachment houses at least a portion of the metal damper tube and thus defines an overlapping region where the composite mounting attachment and the metal damper tube are co-extensive with each other. One or more windows are provided in the overlapping region of the composite mounting attachment where the metal damper tube is left exposed. This helps to promote heat dissipation away from the metal damper tube while reducing weight and heat transmission from the metal damper tube to the composite mounting attachment to reduce overheating of the composite material.
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
A damper assembly includes a pressure tube defining a first chamber and a piston movable within the first chamber. The damper assembly includes a reserve tube defining a second chamber. The damper assembly includes a cylinder end attached to the pressure tube, the cylinder end defining a passage in fluid communication with the first chamber and the second chamber. The damper assembly includes an orifice disc attached to the cylinder end and defining an opening in fluid communication with the passage. The damper assembly includes a check disc attached to the cylinder end, the check disc movable from a first position spaced from orifice disc to a second position abutting the orifice disc. Movement of the piston within the first chamber causes fluid flow between the first chamber and the second chamber via the passage of the cylinder end. The check disc and the orifice disc limit a rate of such fluid flow.
F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A damper assembly includes a damper with a pressure tube and a piston slidably disposed within the pressure tube. A first working chamber is defined on one side of the piston and a second working chamber is defined on an opposite side of the piston such that a volume of the second working chamber decreases during a compression stroke of the piston and the volume of the second working chamber increases during a rebound stroke of the piston. A bellow accumulator assembly is included and in fluid communication with the second working chamber. The bellow accumulator assembly includes a housing, a bellow accumulator disposed within the housing, a pressurized gas chamber defined between the housing and the bellow accumulator and an accumulator chamber defined between the bellow accumulator and the second working chamber.
F16F 9/096 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid in a chamber with a flexible wall comprising a hydropneumatic accumulator of the membrane type provided on the upper or the lower end of a damper or separately from or laterally on the damper
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A damper including a pressure tube, a piston, and a reserve tube is provided. The piston is arranged inside the pressure tube and divides the pressure tube into first and second working chambers. The reserve tube extends about the pressure tube to define a reserve tube chamber between the pressure tube and the reserve tube. A first damper port is arranged in communication with the second working chamber and a second damper port is arranged in communication with the reserve tube chamber. A remote valve assembly is spaced from the damper. The remote valve assembly includes a first electromagnetic valve that is arranged in communication with the first damper port by a first hydraulic line and a second electromagnetic valve that is arranged in communication with the second damper port by a second hydraulic line. An accumulator is arranged in communication with the first and second electromagnetic valves.
F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
The active suspension system includes right and left dampers, a pump, and a control valve system. Each of the right and left dampers includes a damper housing, a piston rod, and a piston that is mounted on the piston rod. The piston is arranged in sliding engagement inside the damper housing such that the piston divides the damper housing into first and second working chambers. The pump includes a pump intake and a pump outlet. The control valve system is connected in fluid communication with the first and second working chambers of the right damper, the first and second working chambers of the left damper, the pump intake, and the pump outlet. The control valve system has several different arrangements of fluid flow paths that provide different working modes for the active suspension system.
B60G 17/016 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
A bumper cap for a damper, the damper including an outer tube with a tube end. A rod extending through the tube end. The damper including a damping fluid, such as a hydraulic oil, that is movable within the damper in response to movement of the rod to provide a damping effect. The bumper cap has a cup shaped body having a side wall and a base, the side wall having an inner surface and an outer surface, the inner surface having a dimension that is sized to be press fit over the outer tube. The base of the bumper cap has a through hole in the base, the through hole configured to have the rod pass therethrough. The base has at least one fluid passage extending away from the through hole that is in fluid communication with a fluid reservoir in the side wall.
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
95.
Valve arrangement for a shock absorber comprising a triple spring arrangement
The present disclosure relates to a valve arrangement for a shock absorber. The valve arrangement comprises a valve member axially moveable relative a housing, and a triple spring arrangement including a first spring, a second spring and a coil spring arranged between the valve member and a coupling member coupled to the first spring and the second spring. The valve arrangement is adapted so that when the valve member moves no more than a first stroke length relative a predetermined reference position the first spring deflects to adjust a force equilibrium of the valve member, when the valve member moves more than the first stroke length the second spring deflects to adjust said force equilibrium, and when the valve member moves beyond a second stroke length greater than the first stroke length, the coil spring compresses to adjust said force equilibrium. A shock absorber comprising such a valve arrangement and a method for controlling a damping medium flow in a shock absorber is disclosed as well.
F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
A rebound bumper for a shock absorber includes a first portion formed from a first material having a first spring rate and a second portion coupled to the first portion and formed from a second material having a second spring rate greater than the first spring rate. The first portion and the second portion are configured to fit on a piston rod between a piston and a rod guide assembly of the shock absorber. Also, the rebound bumper exhibits a displacement under load relationship with the first spring rate, the second spring rate, and a third spring rate greater than the first spring rate and less than the second spring rate.
F16F 9/49 - Stops limiting fluid passage, e.g. hydraulic stops
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/58 - Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder
A damper assembly includes an outer tube and an inner tube disposed in the outer tube defining a reserve chamber. The inner tube defines an inner volume. A piston is slidably disposed in the inner tube and divides the inner volume into a rebound working chamber and a compression working chamber. A rebound valve is fluidly connected to the rebound working chamber and the reserve chamber, and a compression valve is fluidly connected to the reserve chamber and the compression working chamber. A rebound valve connector fluidly connects the rebound valve and the rebound working chamber and a compression valve connector fluidly connects the compression valve and the compression working chamber. The rebound valve connector includes a one-way valve from the reserve chamber to the rebound working chamber and the compression valve connector includes a one-way valve from the reserve chamber to the compression working chamber.
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
A damper assembly includes an outer tube and an inner tube disposed in the outer tube defining a fluid space therebetween. The inner tube defines an inner volume. A piston is slidably disposed in the inner tube and divides the inner volume into a rebound working chamber and a compression working chamber. An active rebound valve is fluidly connected to the rebound working chamber and the fluid chamber, and an active compression valve is fluidly connected to the reserve chamber and the compression working chamber. An intake assembly is positioned in the fluid chamber to control the fluid flow through the active rebound valve and into the compression working chamber during a rebound stroke and to control fluid flow from the compression working chamber through the active compression valve and into the rebound working chamber during a compression stroke.
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/516 - Special means providing automatic damping adjustment resulting in the damping effects during contraction being different from the damping effects during extension
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
F16F 9/348 - Throttling passages in the form of annular discs operating in opposite directions
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/346 - Throttling passages in the form of slots arranged in cylinder walls
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
A damper assembly includes a damper, an accumulator, and a tube mount. The damper includes a tube having an outer surface. The tube defines a central axis and a first cavity in the outer surface. The accumulator has an end defining a second cavity. The accumulator defines a longitudinal axis. The tube mount is attached to the outer surface of the tube around the first cavity. The tube includes a damper fluid. The end of the accumulator is supported by the tube mount to allow the damper fluid to flow from the tube through the first cavity and into the accumulator through the second cavity. The longitudinal axis of the accumulator is transverse to the central axis of the tube.
F16F 9/46 - Means on or in the damper for manual or non-automatic adjustmentSprings, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details such means combined with temperature correction allowing control from a distance
F16F 9/06 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/512 - Means responsive to load action on the damper or fluid pressure in the damper
A damper includes a pressure tube extending about a longitudinal axis and defining an inner volume. The damper includes a piston attached to a piston rod and slidably disposed within the pressure tube. The piston divides the inner volume of the pressure tube into a first working chamber and a second working chamber. The damper includes a fluid connector having a first wall and a second wall, each elongated along the longitudinal axis and sealed to the pressure tube. The fluid connector has a third wall elongated along the longitudinal axis and extending from the first wall to the second wall. The pressure tube defines an opening at the first working chamber, and the third wall of the fluid connector defines an opening spaced from the opening of the pressure tube. The first wall, the second wall, and the third wall define a passage extending from the opening of the pressure tube to the opening of the third wall.
F16F 9/18 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
F16F 9/346 - Throttling passages in the form of slots arranged in cylinder walls
F16F 9/36 - Special sealings, including sealings or guides for piston-rods
F16F 9/34 - Special valve constructionsShape or construction of throttling passages
F16F 9/32 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium Details
F16F 9/50 - Special means providing automatic damping adjustment
F16F 9/19 - Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder
B60G 13/08 - Resilient suspensions characterised by arrangement, location, or type of vibration-dampers having dampers dissipating energy, e.g. frictionally of fluid type hydraulic
patents
