Gearboxes for a skid steered vehicle including layouts in which all electric propulsion drive motors and electric steering motors are located on one side of the gearbox, and layouts in which the drive inputs of the electric propulsion drive motors are located face to face. Gear change units and gear packaging configurations suitable for such gearboxes.
B62D 11/16 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
B60K 17/12 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of electric gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
F16H 48/10 - Differential gearings with gears having orbital motion with orbital spur gears
F16H 57/023 - Mounting or installation of gears or shafts in gearboxes, e.g. methods or means for assembly
A drive unit for a skid steered vehicle includes a controlled differential positioned between two shafts. The end of each shaft forms an output of the drive unit connected directly to the differential outputs via the shafts. A steer motor is in driveable communication with the differential, and an electric propulsion motor is in driveable communication with the shaft outputs. A gear reduction unit, and optional gear change unit, is positioned between the differential and the electric propulsion motor. The electric propulsion motor, the gear reduction unit and optional gear change unit are connected in a parallel connection with an output of the differential to the shaft outputs. The optional gear change unit includes an epicyclic gear reduction unit having an input and an output which provides drive input from the gear change unit to the shaft. A gear change set has a master gear that receives drive output from the electric propulsion motor, and slave gears which are driven by the master gear via one or more gear chains. A dog clutch slideably engages the input of the gear reduction unit and selectively engages with the master gear or slave gears so that the selected position of the dog clutch determines which gear is engaged.
B60K 17/12 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of electric gearing
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B62D 11/16 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supplies for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles; control apparatus and instruments for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles, namely, transmission power and speed controllers, microcomputers, signal processors, power converters, temperature sensors, position sensors, current sensors, speed sensors, pressure sensors, flow rate sensors, electrical encoders, electrical resolvers, electrical actuators, electrical conductors and fibre-optic cables; software for use in controlling the operation of electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles Powertrains and drivetrains for land vehicles; hybrid-electric powertrains and drivetrains for land vehicles; propulsion mechanisms for land vehicles; electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid military land vehicle transmissions; parts and fittings for all the aforesaid goods Installation, maintenance and repair services in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles Design, development and technical support services for others, namely, analysis, simulation and practical testing in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supplies for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles; control apparatus and instruments for electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles, namely, transmission power and speed controllers, microcomputers, signal processors, power converters, temperature sensors, position sensors, current sensors, speed sensors, pressure sensors, flow rate sensors, electrical encoders, electrical resolvers, electrical actuators, electrical conductors and fibre-optic cables; software for use in controlling the operation of electric drive transmissions, powertrains, drivetrains and propulsion mechanisms for tracked and skid-steered military land vehicles. Powertrains and drivetrains for land vehicles; hybrid-electric powertrains and drivetrains for land vehicles; propulsion mechanisms for land vehicles; electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid military land vehicle transmissions; parts and fittings for all the aforesaid goods. Installation, maintenance and repair services in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles. Design, development and technical support services for others, namely, analysis, simulation and practical testing in relation to powertrains, drivetrains, propulsion mechanisms and electric drive transmissions for tracked and skid-steered military land vehicles.
Some embodiments are directed to a drive configuration for a skid-steered vehicle that has a pair of traction motors for rotationally driving opposite outputs of the drive configuration. The traction motors are operatively connected to the outputs via respective gearing arrangements for selectively varying gear reduction between each of the traction motors and the corresponding output. The drive configuration also has a steer differential in a torque connection with the first and second outputs of the drive configuration. The drive configuration additional has a steer motor operatively connected to the steer differential for selectively varying the rotational speed of the first and second outputs in use. Also, the traction and steer motors define a volume in which the gearing arrangements and steering differential are at least partially located.
B60K 6/445 - Differential gearing distribution type
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
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
B62D 11/14 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
A system, as an engine with a crankcase containing oil or a fluid mixed with oil, has a reservoir containing liquid that extends up to a level of the fluid. A dipstick support structure supports a dipstick on it so that the dipstick extends into the fluid past the level of the fluid, and so that the dipstick is manually removable from the dipstick support structure by a user. An electrical system is connected with the dipstick, and the electrical system electrically senses the level of the fluid based on an electrical characteristic of the dipstick that varies with the varying level of the fluid when the dipstick extends into it. The electrical characteristic may be capacitance of the dipstick detected by sequential charging and discharging of the dipstick to produce a square wave electrical signal the frequency of which corresponds to the level of fluid.
G01F 23/04 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by dip members, e.g. dip-sticks
G01F 23/263 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
Some embodiments are directed to a drive configuration for a skid steered vehicle includes first and second torque outputs coupled by a differential and in a torque connection with first and second electric motors, the differential being configured to mechanically transfer power across itself; and a mechanical power splitter having a first torque transfer feature in a torque connection with a combustion engine, a second torque transfer feature in a torque connection with a respective additional electric motor and a third torque transfer feature in a torque connection with at least one of the first and second torque outputs of the drive configuration, wherein torque output from the or each the mechanical power splitter in use is dependent on torques generated by the combustion engine and the associated additional electric motor.
B62D 11/18 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied hydraulically
B60K 17/16 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of differential gearing
B60K 23/04 - Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
B62D 11/16 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source the additional power supply being supplied mechanically
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
Some embodiments are directed to a drive configuration for a skid-steered vehicle that has a pair of traction motors for rotationally driving opposite outputs of the drive configuration. The traction motors are operatively connected to the outputs via respective gearing arrangements for selectively varying gear reduction between each of the traction motors and the corresponding output. The drive configuration also has a steer differential in a torque connection with the first and second outputs of the drive configuration. The drive configuration additional has a steer motor operatively connected to the steer differential for selectively varying the rotational speed of the first and second outputs in use. Also, the traction and steer motors define a volume in which the gearing arrangements and steering differential are at least partially located.
B60K 1/02 - Arrangement or mounting of electrical propulsion units comprising more than one electric motor
B60K 17/08 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of change-speed gearing of mechanical type
B60K 17/04 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
B60K 6/445 - Differential gearing distribution type
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
B62D 11/14 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
Some embodiments are directed to an apparatus for managing fluid flow in a vehicle, that includes an epicyclic gear set having first, and second inputs configured to receive rotational drive input from a torque output feature of a powertrain and a rotary actuator respectively. A pump driver is provided for driving a fluid pump, the pump driver being configured to receive rotational drive input from an output of the epicyclic gear set. A controller is configured to determine information corresponding to the rotational speed of the torque output feature using information generated by a rotational speed sensor and based on this control the rotary actuator, such that the pump driver is caused to rotate at substantially a pre-specified speed.
Some embodiments are directed to an electric motor that includes a stator including a plurality of circumferentially distributed drive elements for causing an electromagnetic driving force to be applied to a rotor of the electric motor in use. Each drive element includes a wire extending around a metal core to define a plurality of coils for magnetizing the metal core when current flows in the coils. At least one space exists between the metal core of each respective drive element and the coils around it. A cooling device is provided for transferring heat away from the drive elements. Each drive element further includes a heat conductor including a plurality of mutually electrically isolated metallic elements located in the or each respective space between the metal core thereof and the coils around it, for transferring heat from the coils to the cooling device.
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
Some embodiments are directed to a controlled differential adapted to couple two shafts and steer input, such as those provided in a drive configuration for a skid steered vehicle, the controlled differential including a pair of planet carriers arranged to turn with respective shafts; a pair of ring gears interconnected by a cross-shaft such that the ring gears rotate in common; planet gears and a pair of sun gears, the sun gears being coupled to at least one steer motor to enable rotation of the sun gears in mutually opposite senses upon input from the steer motor.
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
F16H 48/36 - Differential gearings characterised by intentionally generating speed difference between outputs
B62D 11/14 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
A drive configuration for a skid steered vehicle comprises a pair of electric motors for propulsion of the vehicle, one each coupled to drive a respective track on a respective side of the vehicle, and one or more electric steer motors coupled through a differential gear mechanism to impose a speed difference between the tracks. An associated control system controls the current to each motor so that substantial contributions to the differential torque to turn the vehicle are made both by the steer motors and by the propulsion motors, in variable proportions preferably as a function of the vehicle speed.
B62D 11/04 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of separate power sources
B62D 11/14 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin- differential or epicyclic gears differential power outputs being effected by additional power supply to one side, e.g. power originating from secondary power source
A controlled differential, particularly for exercising steering control of skid steered vehicles, having a compound planetary gear set coupling two shafts. Respective ring gears turn with the shafts and mesh with a compound planet gear in a planet carrier, the ratios of the number of gear teeth between each ring gear and the respective gear of the compound planet being unequal so that when the planet carrier is stationary the two shafts are coupled through the differential to turn together in the same sense but with a speed difference, and controlled rotation of the planet carrier varies the speed difference between the shafts in accordance with the sense and speed of rotation of the planet carrier.
F16H 3/72 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
b) of the compound planets being unequal so that when the planet carrier is stationary the two shafts are coupled through the differential to turn together in the same sense but with a speed difference, and controlled rotation of the planet carrier varies the speed difference between the shafts in accordance with the sense and speed of rotation of the planet carrier.
F16H 48/30 - Arrangements for suppressing or influencing the differential action, e.g. locking devices using externally-actuatable means
F16H 57/08 - General details of gearing of gearings with members having orbital motion
B62D 11/06 - Steering non-deflectable wheelsSteering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
B62D 11/00 - Steering non-deflectable wheelsSteering endless tracks or the like
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supplies for electric drive transmissions for tracked and skid-steered military land vehicles; control apparatus and instruments for electric drive transmissions for tracked and skid-steered military land vehicles, namely, transmission power and speed controllers, microcomputers, signal processors, power converters, temperature sensors, position sensors, current sensors, speed sensors, pressure sensors, flow rate sensors, electrical encoders, electrical resolvers, electrical actuators, electrical conductors and fibre-optic cables; software for use in controlling the operation of electric drive transmissions for tracked and skid-steered military land vehicles Electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid military land vehicle transmissions; parts and fittings for all the aforesaid goods [ Installation, maintenance and repair services in relation to electric drive transmissions for tracked and skid-steered military land vehicles ] Design, development and technical support services for others, namely, analysis, simulation and practical testing in relation to electric drive transmissions for tracked and skid-steered military land vehicles
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Electrical and electronic power supply and control apparatus and instruments for electric drive transmissions for tracked and skid-steered military land vehicles; software for use with all the aforesaid goods. Electric drive transmissions for tracked and skid-steered military land vehicles; motors, differentials, gear change and gear reduction mechanisms, brakes, coupling shafts and final drives for the aforesaid transmissions; parts and fittings for all the aforesaid goods. Installation, maintenance and repair services in relation to electric drive transmissions for tracked and skid-steered military land vehicles. Design, development and technical support services in relation to electric drive transmissions for tracked and skid-steered military land vehicles.
