The present application describes fluid transit prevention devices (10) and control system (1200) for controlling a brake system (1000) of a vehicle. The brake system comprising a brake fluid reservoir (1030) fluidically connected to a hydraulically actuated brake (1020A) via an electromechanical valve (1010). The control system comprising one or more processors (1230) collectively configured to determine or receive an acceleration signal (1310) comprising information indicative of a vehicle lateral acceleration and determine whether the vehicle lateral acceleration is at or exceeds a predetermined threshold value. Then output a valve signal (1320) for actuating the electromechanical valve dependent on whether the vehicle lateral acceleration exceeds the predetermined threshold value.
B60T 7/04 - Brake-action initiating means for personal initiation foot-actuated
B60T 7/12 - Brake-action initiating means for automatic initiationBrake-action initiating means for initiation not subject to will of driver or passenger
B60T 8/1755 - Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
B60T 13/14 - Pressure supply arrangements using accumulators or reservoirs
B60T 13/16 - Pressure supply arrangements using pumps directly, i.e. without interposition of accumulators or reservoirs
B60T 13/66 - Electrical control in fluid-pressure brake systems
B60T 13/68 - Electrical control in fluid-pressure brake systems by electrically-controlled valves
B60T 13/74 - Transmitting braking action from initiating means to ultimate brake actuator with power assistance or driveBrake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
The present invention relates to a brake caliper (10) having a bleed valve (60) protection feature. It also relates to a brake caliper assembly having such a brake caliper (10), a vehicle and a method of assembling and disassembling the brake caliper assembly. The brake caliper body (20) comprising at least one fluid duct with a bleed port (22) and a protective shroud (30) protruding from around the port (22). The shroud (30) defining a bore therethrough along a bore axis and the port being arranged at a base of the bore, wherein the shroud (30) has a maintenance slot (50) formed therein proximate to the base of the bore and configured to allow tool access to the bore.
A piston for the actuation of a brake pad, the piston comprising a body having a base end, a pad end and a side wall formed therebetween, an axis X extending from the base end to the pad end, the pad end having a cap contact surface at a non-zero angle relative to the axis of the body; a cap movably secured to the body at the pad end, the cap being arranged over the cap contact surface and having a pad contact face and an opposite body contact face; and a resilient member arranged between the body and the cap; wherein, on application of a braking force, the cap is arranged in an initial position where the cap contact surface of the body is spaced apart from the body contact face of the cap, whereby the cap is moveable transversely relative to the axis of the body into an intermediate position; and wherein the cap is moveable axially relative to the body from the intermediate position into a final position where the cap contact surface contacts the body contact face such that movement of the cap transversely relative to the axis of the body is restrained in the final position.
F16D 65/18 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
F16D 65/092 - Bands, shoes or padsPivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
4.
ELECTROHYDRAULIC BRAKE BY WIRE SYSTEM FOR AUTONOMOUS VEHICLES AND FULLY DECOUPLED APPLICATIONS
A system for controlling a self -sufficient brake-by-wire system (12) for use in an autonomous or semi-autonomous vehicles or fully decoupled braking applications comprising sensors (102, 104, 106, 108, 110, 112, 114) configured to determine the operating state of a brake-by-wire system (12); brake calipers (150,152) configured to apply a braking force on a wheel hub to slow the rotation of the wheel hub; a reservoir (138) configured to supply a volume of fluid to actuate the brake calipers (150, 152), the volume of fluid used to engage and disengage the brake caliper (150, 152); a pump (144) configured to supply a volume of fluid to an accumulator (136) and the brake calipers (150, 152) via the flow of a volume of fluid from the reservoir (138); the accumulator (136) configured to store pressure used to flow a volume of fluid in the brake-by-wire system (12), wherein the accumulator acts as a supplement pressure source in addition to pressure provided by the pump (144) via the flow of fluid or as a backup; a controller (101) configured to autonomously and selectively couple or decouple the flow of fluid from the reservoir (138) via the pump (144) and/or accumulator (136) to the brake calipers (150, 152), via a primary route (300) or a secondary route 400, wherein primary route 300 and secondary route (400) are independent of each other; wherein in a first configuration the controller (101) is configured to allow the flow of fluid via a primary route (300) by engaging the first solenoid valve (120) whilst the second solenoid valve (132) remains disengaged to enable active control of the brake system (12); and wherein in a second configuration the controller (101) is configured to allow the flow of fluid via the secondary route (400) by keeping the first solenoid valve (120) disengaged and engaging the second solenoid valve (132) to enable the vehicle to stop/slow down; wherein the controller is configured to switch from the first configuration to the second configuration upon detection of a fault or failure of one or more of the sections of the brake-by-wire system (12).
B60T 8/34 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
B60T 8/40 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
B60T 8/48 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure
B60T 8/50 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition having means for controlling the rate at which pressure is reapplied to the brake
B60T 8/94 - Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on a fluid pressure regulator
5.
Cooling ducts for disc brake caliper and method of manufacture thereof
The present invention relates to a disc brake caliper body comprising a mounting side bracket and a non-mounting side bracket extending along a circumferential direction of the body, each bracket being configured to hold at least one brake pad. In order to provide improved cooling efficiency while maintaining the required stability of the brake caliper, the caliper body further comprises at least one cooling duct formed by additive manufacturing, at least one cooling duct being an integral part of the caliper body.
The present invention relates to a hub for mounting a brake disc to a flange member on a vehicle axis. The hub member comprises a flange section with a plurality of first openings adapted to receive mounting members for mounting the flange section to a flange member and a brake disc attachment section connected to the flange section. The brake disc attachment section circumferentially surrounding the flange section and comprises a plurality of second openings adapted to receive mounting members for mounting the attachment section to a brake disc. The attachment section further comprises at least one reinforcement rib connected to at least one of the plurality of second openings.
A ventilated brake disc has a disc body having a first disc plate, a second disc plate and a vane structure between the first and second disc plates, the vane structure separating the first and second disc plates to allow passage of fluid therebetween, in which the vane structure defines a plurality of vanes, which vanes connect the first and second disc plates, are swept to extend in a radial and circumferential direction of the disc body and define a plurality of protrusions on at least one circumferentially facing side.
F16D 65/847 - Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
B22D 25/02 - Special casting characterised by the nature of the product by its peculiarity of shapeSpecial casting characterised by the nature of the product of works of art
F16D 65/18 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
B33Y 80/00 - Products made by additive manufacturing
F16D 55/22 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
F16D 55/225 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
F16D 55/00 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
The present invention relates to a disc brake caliper body comprising a mounting side bracket and a non-mounting side bracket extending along a circumferential direction of the body, each bracket being configured to hold at least one brake pad. In order to provide improved cooling efficiency while maintaining the required stability of the brake caliper, the caliper body further comprises at least one cooling duct formed by additive manufacturing, at least one cooling duct being an integral part of the caliper body.
The present invention relates to a hub for mounting a brake disc to a flange member on a vehicle axis. The hub member comprises a flange section with a plurality of first openings adapted to receive mounting members for mounting the flange section to a flange member and a brake disc attachment section connected to the flange section. The brake disc attachment section circumferentially surrounding the flange section and comprises a plurality of second openings adapted to receive mounting members for mounting the attachment section to a brake disc. The attachment section further comprises at least one reinforcement rib connected to at least one of the plurality of second openings.
A brake caliper (10) comprising a body (12) manufactured from ALM and having a skinned lattice structure. A method of designing and forming said brake caliper.
F16D 55/22 - Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
F16D 65/18 - Actuating mechanisms for brakesMeans for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together
A ventilated brake disc (100) has a disc body (108) having a first disc plate (108), a second disc plate (110) and a vane structure (112) between the first and second disc plates, the vane structure separating the first and second disc plates to allow passage of fluid therebetween, in which the vane structure defines a plurality of vanes (112a, 112b, etc.), which vanes connect the first and second disc plates, are swept to extend in a radial and circumferential direction of the disc body and define a plurality of protrusions (128a, 128b etc.) on at least one circumferentially facing side (120).
The present invention relates to a brake fluid valve assembly (12). Assembly (12) comprises a housing (14) defining an inner chamber (21). A first non-return valve (32) and a second non-return valve (33) are arranged in the chamber (21). The housing (14) defines an inlet (22) and outlets (23, 24). Assembly (12) also comprises feed port means (34) arranged to allow fluid to flow from the inlet (22) to the first non-return valve (32). The first non-return valve (32) is arranged to let fluid flow from a master cylinder (11) through the inlet (22) and through the outlets (23, 24) towards a caliper (1) to apply a brake. Return port means (50) are arranged to allow fluid to flow from the outlets (23, 24) to the second non-return valve (33). The second non-return valve (33) is arranged to let fluid flow from a caliper through the outlets (23, 24) and through the inlet (22) towards a master cylinder (11). The assembly also comprises a restrictor port (52) between the outlet and the second non-return valve. The restrictor port (52) is arranged to allow fluid to by-pass the second non-return valve, and restrict the flow of fluid from a caliper through the outlet and through the inlet towards a master cylinder when brake fluid pressure drops below a predetermined value.
