1187results about "Fluid braking transmission" patented technology

A brake system includes a motor-driven master cylinder for generating brake actuating pressure at first and second MC outputs for hydraulically actuating pairs of wheel brakes. A secondary brake module is configured for selectively providing pressurized hydraulic fluid at first and second PTU outputs for actuating the first and second pairs of wheel brakes. A low pressure accumulator is interposed hydraulically between the first and second pairs of wheel brakes. The low pressure accumulator is in indirect fluid communication with the reservoir via the first and second MC outputs and the master cylinder. The low pressure accumulator at least partially provides slip control to the wheel brakes in coordination with the secondary brake module when the brake system is in the normal non-failure braking mode.

A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.

An actuation device for hydraulically actuating a brake or a clutch of a vehicle, comprising a pump assembly (2) and an idle stroke adjustment device (3). A piston (23) is configured to slide inside a chamber (22) disposed within a pump body (21) along a pump actuating direction (X-X). The piston (23) is at least movable from a resting position (P1) to an operating position (P2), between which is defined a stroke free play (d1). The idle stroke adjustment device (3) comprises an idle stroke adjusting body (31) connected to the piston (23), movable along an idle stroke adjusting direction (X'-X') which is parallel to the pump actuating direction (X-X), wherein the movement of the idle stroke adjusting body (31) along the idle stroke adjusting direction (X'-X') causes the movement of the piston (23) along the pump actuating direction (X-X) to increase or decrease the stroke free play (d1).

The invention discloses a linkage device, an integrated main control unit and an ABS brake system.The linkage device comprises a valve body, a piston assembly and a one-way sealing element, the valve body comprises a first cavity, a second cavity and a second oil way, and the first cavity is communicated with the second oil way and the second cavity; the piston assembly slides in the first cavity in a reciprocating mode along the axis, part of the piston assembly can enter the second oil way, a gap is formed between the piston assembly and the valve body, a plurality of small holes are evenly formed in the side wall of the piston assembly, the piston assembly is provided with an elastic element, and the one-way sealing piece is arranged in the annular groove of the valve body and located on the outer side wall of the piston assembly. The one-way sealing piece is in sliding connection with the piston assembly, and the one-way sealing piece and the small holes jointly serve as a structure for controlling opening and closing of the internal liquid channel. The linkage device solves the problems that in the prior art, a one-way oil seal of a linkage device is prone to failure, the pressure relief hole diameter is too small, and then the efficiency and safety of a braking system are affected.

Disclosed herein is a front mounted-type reservoir assembly installed on a front surface of a hydraulic block of an integrated dynamic brake system including a main reservoir tank that is provided with a main reservoir chamber that stores brake oil therein, and a plurality of oil ports, through which the brake oil flows in and out, on a front surface of the main reservoir tank, wherein at least one partition wall is provided in the main reservoir tank to partition the main reservoir chamber into a plurality of regions, and at least one separation wall is provided in at least one of the plurality of partitioned reservoir chambers to increase flow resistance of the brake oil.

A brake valve (10) for providing a brake pressure (pB) to a vehicle brake system (100) includes a housing (20), a pressure piece (16), configured to apply a force to a valve system (18) and slidably arranged in the housing (20) along a valve axis (22) between a neutral position and an actuation position, and a magnet (42) forming a moving part (40) of a position sensor (38) for detecting the position of the pressure piece (16). The magnet (42) is attached to the pressure piece (16) by a magnet support (64), and the magnet support (64) includes a saddle portion (68). The saddle portion (68) is detachably connected to the pressure piece (16).

A vehicle brake system includes a vehicle brake device and a hydraulic pressure generation unit. The vehicle brake device includes: a brake pedal that has a pedal portion, and a lever portion rotating about a rotation axis in response to the pedal portion being operated; a stroke sensor that outputs a signal based on a stroke amount of the brake pedal; a housing that rotatably supports the lever portion; and a reaction force generation portion that generates a reaction force applied on the lever portion based on the stroke amount. The hydraulic pressure generation unit generates a hydraulic pressure for braking a vehicle.

A brake system for a motor vehicle for at least four hydraulically actuable wheel brakes, including one electrically actuable inlet valve per wheel brake, a first electrically actuable pressure source, and a second electrically actuable pressure source, wherein the first pressure source and the second pressure source are connected to a brake supply line, to which the at least four inlet valves are connected, and a pressure medium reservoir having a first reservoir chamber and a second reservoir chamber, wherein the first pressure source is hydraulically connected to the first reservoir chamber, and wherein the second pressure source is hydraulically connected to the second reservoir chamber. The pressure medium reservoir includes a third reservoir chamber and the first pressure source is connected via an electrically actuable first separation valve to the third reservoir chamber of the pressure medium reservoir.

The utility model belongs to the technical field of automobile parts, and particularly relates to a brake master cylinder, a brake assembly and a vehicle. The brake master cylinder comprises a shell, a piston and a displacement sensor, a first hole is formed in the shell, and the piston is installed in the first hole in a reciprocating motion mode; the displacement sensor comprises a generator, at least part of the generator is inserted into the first hole, and one end of the generator is connected with one axial end of the piston. According to the brake master cylinder, the generator is arranged at the axial end of the piston, and the first hole used for installing the piston in the brake master cylinder is used for containing the generator, so that compared with the prior art that the generator is arranged on the radial outer side of the piston, an installation hole used for installing the generator does not need to be formed in the radial outer side of the first hole; therefore, the size of the cross section of the brake master cylinder is small, and the brake master cylinder can be flexibly matched with an installation space on a vehicle.

The present application relates to a brake actuating unit for a brake-by-wire motor vehicle brake system. The brake actuating unit comprises a housing, a first electrically controllable pressure supplying device, and a second electrically controllable pressure supplying device. The brake actuating unit further comprises a first connector for electrically connecting the brake actuating unit with a vehicle control unit and with a power network. The first connector is electrically connected with the first electrically controllable pressure supplying device. The brake actuating unit comprises a second connector for electrically connecting the brake actuating unit with the vehicle control unit and with the power network. The second connector is electrically connected with the second electrically controllable pressure supplying device. The brake actuating unit comprises a first cylinder and piston arrangement disposed within the housing and a piston rod for transmitting a displacement of a brake pedal to a piston.

A battery system includes a liquid-cooled battery pack and a compressed air supply connected to a high pressure inlet valve of the battery pack and connectable to an air-controlled brake system of a vehicle, wherein the battery system is configured to control an internal pressure of the battery pack to be greater than an ambient air pressure.

A brake control apparatus is provided for a vehicle train having a tractor and one or more towed vehicles coupled to the tractor. The brake control apparatus comprises a tractor controller arranged to detect a pressure change in at least one brake line of the vehicle train in response to a brake trigger signal. The tractor controller is also arranged to process the detected pressure change to estimate a combination of the number of the towed vehicles and a total length of the number of towed vehicles coupled to the tractor.

A pressure control device has a device body partially delimiting a first circuit side opening, a second circuit side opening, and a conduit having a first conduit portion connectable to a first circuit to receive a first circuit fluid at a first circuit pressure and a second conduit portion connectable to a second circuit to receive a second circuit fluid at a second circuit pressure. A pressure adjusting mechanism controls the first and / or second circuit pressure to reach an actuating pressure. When at least one of the first and second circuit pressures is lower than a threshold pressure, the pressure adjusting mechanism prevents fluid passages between the first and second conduit portions to actuate either a first or a second braking device. When the first and second circuit pressures are both higher than the threshold pressure, the pressure control connects the first and second conduit portions to actuate the first and second braking devices.

A control device includes a housing having a base portion and an extension portion. The base portion of the housing has an inward facing side and an outward facing side. The control device includes a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a hollow fluid cylinder. The control device also includes a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least part of the piston assembly is disposed within the master cylinder portion. The master cylinder portion is angled relative to the outward facing side of the base portion of the housing, such that the first end of the fluid cylinder is closer to the outward facing side than the second end of the fluid cylinder is relative to the outward facing side.

The present disclosure in some embodiments provides an oil reservoir assembly for a vehicle, the assembly comprising: a first oil reservoir formed with an outlet; a second oil reservoir spaced apart from the first oil reservoir in a lateral direction and in front of the vehicle, in fluid communication with a master cylinder, and having an inlet; a connecting member connecting the outlet and the inlet to convey a working fluid from the first oil reservoir to the second oil reservoir and a first rib located inside the second oil reservoir, extending from an upper surface of the second oil reservoir and parallel to a longitudinal direction of the vehicle, and extending in a first direction of the inlet.

The invention relates to a method for compensating for a disadvantageous manual steering intervention during an automated evasive maneuver of a vehicle. During the evasive maneuver, a wheel-specific braking intervention is initiated if an actual steering angle (δ ist ) of a steering wheel of the vehicle due to the manual steering intervention by an angle value above a predetermined limit value from a target steering angle (δ soll ) differs.

Disclosed are a hydraulic brake device, a hydraulic brake actuation device, and a two-wheeled vehicle. The hydraulic brake device comprises a cylinder body, a pushrod piston, and a return spring. One end of the pushrod piston moves back and forth within the cylinder body, overcoming the elastic force of the return spring. A pushrod head is provided at the other end of the pushrod piston.The hydraulic brake actuation device comprises a carrier, an actuating lever and the hydraulic brake device, wherein the actuating lever is rotatably connected to the carrier; the hydraulic brake device is symmetrically constructed and provided within the carrier; a drive rod is arranged on the carrier, wherein the head end of the drive rod is in contact with the actuating lever and the rear end of the drive rod is in contact with the hydraulic brake device; the drive rod serves to receive a drive force from the actuating lever.

Disclosed are a reservoir tank and an electronic brake system including the same. A reservoir tank according to an embodiment of the present disclosure includes an upper casing including an upper flange provided at a lower side thereof, and upper reinforcement ribs provided along an outer peripheral surface of the upper flange, and a lower casing including a lower flange provided at an upper side thereof, and lower reinforcement ribs provided along an outer peripheral surface of the lower flange, the lower casing being coupled to the lower side of the upper casing to form an internal space in which brake oil is stored, in which the upper reinforcement rib and the lower reinforcement rib are disposed on a straight line.

The invention relates to an electromechanical brake booster for a vehicle brake system, comprising: an electric motor (12); at least one linearly adjustable piston part (14); a transmission device (16), by means of which the electric motor (12) is connected to the at least one linearly adjustable piston part (14), such that a motor force of the electric motor (12) can be transmitted to the at least one linearly adjustable piston part (14) via the transmission device (16); a transmission housing component (18) which at least partially surrounds the transmission (16); and at least one pull rod (20), to which the at least one linearly adjustable piston part (14) is connected in order to guide the linearly adjustable piston part (14) by means of the transmitted motor force by means of the at least one pull rod (20); wherein the electromechanical brake booster has an intermediate plate (22, 44) which is produced as a component independent of the transmission housing component (18), the at least one pull rod (20) being fastened to the intermediate plate (22, 44) and the intermediate plate (22, 44) being fastened to the transmission housing component (18).

A control device having two brake master cylinders both of which may be simultaneously operated by the same single manual control lever according to a combined or integral braking mode is provided. A switching member associated with the manual control lever may exclude one of the two brake master cylinders.

A braking system for a motor vehicle for actuating hydraulically actuated wheel brakes, comprising electrically actuated inlet and outlet valves for each wheel brake, a first and a second electrically actuated pressure source, and a reservoir, wherein the first pressure source is hydraulically connected on the pressure side to the inlet valves of a first brake circuit via a first isolating valve, and is additionally hydraulically connected on the pressure side to the inlet valves of a second brake circuit via a second isolating valve, wherein the second pressure source comprises a first and a second pressure outlet, wherein the first pressure outlet is hydraulically connected to the inlet valves of the first brake circuit, and the second pressure outlet is hydraulically connected to the inlet valves of the second brake circuit, wherein the reservoir comprises a first chamber, a second chamber, and a third chamber,wherein the first pressure source is hydraulically connected to the first chamber on the suction side, wherein a first suction inlet of the second pressure source is hydraulically connected to the second chamber, and wherein a second suction inlet of the second pressure source is hydraulically connected to the third chamber, wherein the outlet valves of the first brake circuit are hydraulically connected to the second chamber, and the outlet valves of the second brake circuit are hydraulically connected to the third chamber.

A control device includes a housing having a base portion and an extension portion. The base portion of the housing has an inward facing side and an outward facing side. The control device includes a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a hollow fluid cylinder. The control device also includes a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least part of the piston assembly is disposed within the master cylinder portion. The master cylinder portion is angled relative to the outward facing side of the base portion of the housing, such that the first end of the fluid cylinder is closer to the outward facing side than the second end of the fluid cylinder is relative to the outward facing side.

A combination of cable-pull hydraulic upper pump (10) and cable-pull hydraulic disc brake includes a cable-pull hydraulic upper pump (10) which is used with a bicycle handlebar stem, and includes an upper pump (10) that has a first cylinder (101) and a second cylinder (102). The upper pump (10) includes a first oil outlet (104) and a second oil outlet (105) that radially connect to the first cylinder (101). An oil passage hole (106) is coaxially arranged with the second oil outlet (105) and connects the first cylinder (101) and the second cylinder (102). Two drive members (20) are installed in the first cylinder (101) and the second cylinder (102). Two brake cables (60) are connected to the two drive. The hydraulic fluid in the first cylinder (101) flows out from the first oil outlet (104). The hydraulic fluid in the second cylinder (102) flows out from the second oil outlet (105) via the oil passage hole (106).

A brake apparatus for a vehicle, comprising: a 3-way solenoid valve unit including one or more 3-way solenoid valves, a valve block having a first surface on which the 3-way solenoid valve unit is installed, at least one accumulator, a pressurizing unit, and a plurality of wheel cylinders, wherein each 3-way solenoid valve includes a first port, a second port, a third port, a first opening / closing flow path, and a second opening / closing flow path, and at least a part of the at least one accumulator is disposed between the 3-way solenoid valve unit and a second surface of the valve block.

An externally adjustable pressure modulating valve is disclosed. In one example, the valve has a valve body extending along a valve axis and defining a plunger cavity extending axially into a first end of the valve body. A valve spool is retained in the valve body and is movable along the valve axis. An input plunger is slidable axially in the plunger cavity between a resting position and an actuated position. An external adjustment mechanism is configured to adjust the modulation spring force when the input plunger is fully actuated. In one example, the adjustment mechanism includes a threaded sleeve in the plunger cavity, where rotating the threaded sleeve changes the mechanical stop of the input plunger.

A hydraulic pressure distribution device (1) comprises a hydraulic reservoir (10), a first piston (20), a second piston (40), and two elastic components (30, 50). The hydraulic reservoir has a first inlet (13), a first chamber (14), a first outlet (15), a second inlet (16), a second chamber (17), a second outlet (18), and a side channel (19). The first piston is located in the first chamber and divides the first chamber into a first and a second sub-chamber (141, 142). The first sub-chamber is connected to the first outlet, and the second sub-chamber is connected to the first inlet and the side channel. The second piston is located in the second chamber and divides the second chamber into a third and a fourth sub-chamber (171, 172). The third sub-chamber is connected to the second inlet and the second outlet, and the fourth sub-chamber is connected to the side channel.The elastic components are arranged on the first piston and the second piston, respectively.

Disclosed is a front-mounted type reservoir assembly. A front-mounted type reservoir assembly according to the present embodiment may be installed on a front surface of a hydraulic block of an integrated brake system and include a main reservoir tank having a main reservoir chamber configured to store a pressurized medium therein, and a plurality of oil ports formed on a front surface of the main reservoir tank so that the pressurized medium is introduced or discharged through the plurality of oil ports, and a remote reservoir tank having a first connection port configured to supply the pressurized medium to the main reservoir tank, an injection part configured to inject the pressurized medium, and a remote reservoir chamber configured to store the pressurized medium therein, in which the remote reservoir tank has partition walls configured to increase flow resistance of the pressurized medium to be supplied to the main reservoir tank.

The present invention relates to a primary gasket (1) for a cylinder assembly (100), wherein said cylinder assembly (100) comprises a cylinder (101) and a float (102) slidingly accommodated in a float housing (104) delimited by a cylinder wall (103) of said cylinder (101) for pressurizing a fluid, wherein the primary gasket (1) comprises an annular body (2), which extends circumferentially at least along a circumferential direction (C-C) about an axial direction (X-X), wherein said primary gasket (1) defines a radial direction (R-R) perpendicular to said axial direction (X-X) and said circumferential direction (C-C), wherein said annular body (2) is configured to be accommodated in a primary gasket housing (105) defined in said cylinder wall (103), wherein the primary gasket housing (105) is delimited radially by an axial housing wall (107) and axially by a first radial housing wall (108) and a second radial housing wall (109) connected to said axial housing wall (107), wherein said annular body (2) comprises an inner lip (4), a central lip (5), an outer lip (6), and a back portion (3), wherein the back portion (3) comprises a back abutment surface (13) configured to abut against the first radial housing wall (108) of said primary gasket housing (105), wherein the inner lip (4), the central lip (5), and the outer lip (6) extend axially from the back portion (3), on the side opposite to the back abutment surface (13), radially spaced apart from one another, wherein the inner lip (4) is configured to form a seal with said float (102), wherein the outer lip (6) is configured to form a seal with said axial housing wall (107), wherein the central lip (5) comprises an annular lip body (14), which extends axially between said back portion (3) and a central lip edge (15), wherein the annular lip body (14) has a central lip thickness (S) along said radial direction (R-R), wherein the central lip edge (15) comprises at least one central lip abutment portion (7) configured to abut against the second radial wall (109), wherein the central lip (5) comprises at least one radial opening (9), wherein said at least one radial opening (9) passes through the central lip thickness (S) defining a closed side opening profile (8) in said annular body (14).

A pedal emulator for a vehicle, having a rotational axis, a pedal lever that can be rotated about the rotational axis, and a force generation unit for exerting a counterforce on the pedal lever via at least one coupling element of the force generation unit that is mechanically coupled to the pedal lever. The counterforce acting in the opposite direction to an actuation force exerted on the pedal lever. The force generation unit can be designed such that a curve of the counterforce along a pedal path of the pedal lever is in the form of a non-linear curve in a pedal path-counterforce diagram.