Abstract: A brake pad for a disc brake with decreased wear characteristics is provided. The brake pad is configured with the distribution of brake pad friction material weighted toward the radially outer region of the brake pad, with the lateral sides of the pad material being generally aligned with radial lines originating at the rotation axis of the brake disc of the disc brake. The brake pad friction material distribution results in decreased brake application pressure between the brake pad and the brake disc while obtaining the same braking force provided by a comparable generally rectangular brake pad, resulting in lower brake pad wear at the same braking force levels.

Abstract: A traveling drive device for a dump truck is provided with an axle housing mounted to a vehicle body, a wheel mounting tube rotatably provided on the outer periphery side of the axle housing, a disk holding cylinder provided on the axial outside of the wheel mounting tube, a brake disk mounted to the disk holding cylinder, and a brake device for applying braking to the brake disk. The disk holding cylinder is configured by a cylindrical body to be mounted to the wheel mounting tube and a plurality of disk mounting legs provided on the cylindrical body. A plurality of U-shaped projections are provided on the outer periphery side of the brake disk at positions corresponding to the respective disk mounting legs. A recessed groove which fits on the disk mounting leg so as to hold a distal end thereof is provided in each of the U-shaped projections.

Abstract: One embodiment of the present invention provides a caliper body including an acting portion having a cylinder bore; a union boss portion having a union hole; and a bleeder boss portion having a bleeder hole. The union boss portion is formed at a central portion of a side surface of the acting portion in a circumferential direction of a disc brake rotor, the side surface being opposite to a side surface facing the disc brake rotor. The bleeder boss portion extends from an outer circumferential side of the bottom wall of the cylinder bore to the union boss portion. The union boss portion and the bleeder boss portion form a continuous projecting portion such that the union boss portion projects further outwards than the bleeder boss portion.

Abstract: A center-pull hydraulic brake caliper structure for a bicycle is disclosed. The movable tube is rotated by the outer convex ring and then one end of the movable tube distant from the outer convex ring is distant from or against the first flange to adjust the position of the flowing openings and to make the pressure of oil and air not influence the use of brake.

Abstract: An actuator-driven brake having a multi-pad, may include a torque member, a spindle that may be operated by a driving force from an actuator, a disc pressing assembly that may be pivotally coupled to the torque member and includes an outside lever and an inside lever, wherein each one end of the outside lever and the inside lever may be connected to the spindle and wherein the outside lever and the inside lever simultaneously press both sides of a brake disc by coming closer to each other when the spindle rotates, and a brake pad assembly that includes an outside pad attached to an inner side of the outside lever and an inside pad attached to an inner side of the inside lever.

Abstract: A bicycle rim brake is basically provided with first and second brake arms and a hydraulic actuation device. The first brake arm has a first coupling portion, a first actuated portion and a first mounting portion. The first coupling portion includes a first mounting fastener defining a first pivot axis of the first brake arm. The first mounting portion mounts a first friction member. The second brake arm has a second coupling portion, a second actuated portion and a second mounting portion. The second coupling portion includes a second mounting fastener defining a second pivot axis of the first brake arm. The second mounting portion mounts a second friction member. The hydraulic actuation device includes first and second pistons movably disposed in a cylinder housing and operatively coupled to the first and second actuated portions on the first and second brake arms, respectively.

Abstract: A friction brake device has a brake rotor including a disk part and a subsidiary rotor spaced apart from each other along a rotation axis and a cylindrical part integrally connecting their outer peripheral portions, brake pads which are rotatably supported around an autorotation axis parallel to the rotation axis between the disk part and the subsidiary rotor by a stationary member, rotational torque transmission devices which mutually transmit rotational torques between the brake rotor and the brake pads, and pressing devices which are supported between the disk part and the subsidiary rotor by the stationary member and press the brake pads against the disk part and the subsidiary rotor.

Abstract: A brake actuation apparatus and method are described. An air cylinder is pivotally attached to an operating unit of the brake actuation apparatus. The air cylinder extends away from the operating unit and is configured to connect to the brake pedal to actuate a brake of the towed vehicle through the brake pedal. A stabilizing cable has one end attached to the firewall of the towed vehicle and an opposite end releaseably attached to the brake actuation apparatus, such that when the air cylinder applies pressure to the towed vehicle's brake pedal, the stabilizer cable transfers reaction to the towed vehicle's firewall and supplies a stable anchor point.

Abstract: The present invention provides improved clutch plates for use in wet friction pack clutches and brakes which exhibit greatly reduced flutter particularly at high rotational speeds. Friction clutches and brakes include a first plurality of circular clutch plates or discs coupled to a first member comprising a metal core plate having bands of friction material affixed to both faces. These clutch plates are interleaved with a second plurality of circular metal reaction plates which are coupled to a second member. The metal core plate of the first plurality of clutch plates includes a plurality of radial slots spaced about the core plate which extend inwardly a portion of the radial width of the clutch core plate. Different numbers of slots, different spacings and different configurations of slots provide reduced plate flutter with varying thicknesses of core plates and ranges of rotational speeds.

Abstract: An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled.

Abstract: A braking device comprises: a master cylinder; an electrical pressure adjusting unit; a reaction force generating unit, which forms a reaction force chamber and which generate a reaction hydraulic pressure in the reaction force chamber; a reservoir for brake fluid; an inter-chamber brake fluid path; a reservoir path that connects the reservoir and the inter-chamber brake fluid path; and a normally-closed control valve, wherein the electrical pressure adjusting unit includes an electrical pump which is directly connected with the driving hydraulic pressure chamber to supply the brake fluid to the driving hydraulic pressure chamber, and wherein at least one of electromagnetic valves provided in the electrical pressure adjusting unit and the reaction force generating unit is a normally-opened electromagnetic valve, which is provided in the inter-chamber brake fluid path and is configured to communicate the inter-chamber brake fluid path in a non-conduction state.

Abstract: A braking device including a dissipative braking system, an electric braking system, and a first actuating device combined with the dissipative braking system. A second actuating device is combined with the electric braking system and a position sensor is combined with the second actuating device. This second actuating device is designed to drive the first actuating device after a non-zero travel from its inactive position, and the sensor is designed to drive the electric brake system according to the displacement travel of the second actuating device from its inactive position.

Abstract: A floating-disk type brake system that includes floating disk assemblies placed respectively in spaces between a rotating member, such as a wheel of a transportation machine or a rotating shaft of a machine tool, and a stationary member to reduce differences in the rotating speed of adjacent sliding surfaces of the floating disk assemblies in frictional sliding engagement. The floating-disk type brake system includes a first floating disk assembly and a first disk assembly that are arranged between the ring gear and the planet carrier of a planetary gear built in a transmission or the like, and the first floating disk assembly and the first disk assembly are pressed together into frictional engagement to brake a rotating shaft.

Abstract: A valve assembly including a housing (24?) provided with an inlet port (12?), a delivery port (14?), and an exhaust port (16?), the valve assembly further including a first movable element (32?), a first valve member (34a?) and a second valve member (26a?), the first movable element (32?) being engageable with the first valve member (34a?), engagement of the first valve member (34a?) and first movable element (32?) substantially preventing flow of fluid between the inlet port (12?) and the delivery port (14?), and the first movable element (32?) also being engageable with the second valve member (26a?), engagement of the second valve member (26a?) with the first movable element (32?) substantially preventing flow of fluid between the delivery port (14?) and the exhaust port (16?), the valve assembly further including a second movable element (26?) which divides the housing (24?) into a control chamber (22?) and a main chamber (30?) and which is movable relative to the housing (24?) under the influence of flui

Abstract: A brake assembly includes an operator brake pedal configured to be depressed at a brake pedal angle, and brake pedal linkage operatively connected to the operator brake pedal. The brake pedal linkage is configured to apply a braking force in response to the depression of the operator brake pedal. A brake pedal effort input is associated with the brake pedal angle, and a first rate of change of the brake pedal effort input with respect to the brake pedal angle may be associated with an initial range of motion of the operator brake pedal. A second rate of change of the brake pedal effort input with respect to the brake pedal angle may be associated with a subsequent range of motion of the operator brake pedal. The second rate of change may be greater than the first rate of change.

Abstract: A motor vehicle “brake-by-wire” system having an actuating unit, including a brake master cylinder, actuatable by a brake pedal, has a housing and a piston, arranged displaceably in the housing and, with the housing, delimits a pressure space. The brake master cylinder piston is a stepped piston with two differing size hydraulic active surfaces; a first, small active surface assigned to the pressure space, and a second, large active surface assigned to a filling space. In the “brake-by-wire” operating mode, the filling space is connected to the travel simulator via a pressure medium line such that, in the “brake-by-wire” operating mode, the first small active surface is effective, and, in the recoil plane after a closing travel has been overcome, the second, large hydraulic active surface is effective and the active surfaces are switched over depending on a hydraulic pressure in the pressure space and on the pedal force, respectively.

Abstract: Braking systems and methods having above atmospheric pressure applied to the working hydraulic fluid of the braking system. In certain preferred arrangements, the braking system includes at least one source of pressure, which pressurizes a fluid. The pressurized fluid acts on respective pressure surfaces of the master plunger(s) and the slave piston(s) that are opposite the active or working surfaces of the master plunger(s) and the slave piston(s).

Abstract: The invention relates to an actuator system, in particular an electromechanical parking brake system, comprising an actuator, wherein the actuator is driven by a direct current motor that can be driven in both directions of rotation, wherein a control unit for controlling the movement of the direct current motor in an open-loop or closed-loop manner is provided. The core of the invention is that one or more pieces of information are supplied to a control unit, said information allowing the application force exerted by the electromotive actuator to be determined and compared to a predetermined minimum application force, and wherein the control unit emits at least one piece of information, signal or the like for requesting an auxiliary actuation to peripheral systems, components and/or electronic control units after the target to actual value comparison has shown that the determined, set application force is smaller than the predetermined minimum application force.

Abstract: Braking systems and methods having above atmospheric pressure applied to the working hydraulic fluid of the braking system. In certain preferred arrangements, the braking system includes at least one source of pressure, which pressurizes a fluid. The pressurized fluid acts on respective pressure surfaces of the master plunger(s) and the slave piston(s) that are opposite the active or working surfaces of the master plunger(s) and the slave piston(s).

Abstract: In a method for setting the clamping force exerted by a parking brake, which is generated at least partially by an electromechanical braking device and, if needed, in supplementary fashion by a hydraulic braking device, in the provision of the hydraulic clamping force, a boost pressure to be generated in the hydraulic braking device is increased with respect to a switch-off pressure at the switch-off time that corresponds to the hydraulic clamping force.

Abstract: A brake controlling apparatus (electronic control unit) of a braking device including a booster valve to be opened at a time of request to boost a pressure of a brake liquid to supply to a wheel to be controlled, and a piston pump for supplying pressurized brake liquid to an upstream side of the booster valve, the brake controlling apparatus including a brake liquid pressure controlling unit that sets a duty ratio between a closing period and a opening period of the booster valve so that a dischargeable period of the brake liquid in the piston pump appears in the opening period of the booster valve and controls the booster valve based on the duty ratio.

Abstract: There is provided a vehicle brake system wherein it is possible to prevent the ingress of brake fluid leaking from the cylinder main body of an electric brake actuator constituting the vehicle brake system, and to dispose the electric brake actuator in a power plant storage chamber in a space-efficient manner. A vehicle brake system configured by disposing an input device and a motor cylinder for generating brake fluid pressure by driving a hydraulic pressure controlling piston stored in a cylindrical cylinder main body by means of an electric motor at least in accordance with the brake operation, the vehicle brake system being characterized in that: the motor cylinder is attached in a manner such that at least a portion of the cylinder main body overlaps with a power plant in the vehicle up and down direction; and the electric motor is disposed on top of the cylinder main body.

Abstract: A method for operating a brake system of a vehicle is described. The vehicle includes a service brake having a brake master cylinder and a plurality of wheels each having a respective brake device. Upon attainment of a given measurement value, in particular in the context of a stability control procedure, a brake pressure is built up by means of the brake master cylinder at the brake devices of all wheels.

Abstract: A hydraulic brake actuator adapted to be mounted on a vehicle handlebar and hydraulically coupled to a brake mechanism. The brake actuator includes a brake base adapted to be secured to the handlebar, and a reservoir adapted to be coupled to the brake base and containing brake fluid, the reservoir having a bottom surface. The hydraulic brake actuator further includes a piston-cylinder assembly coupled to the reservoir, a brake lever movable relative to the brake base between a released position and an actuated position, and a locking pawl positioned to limit movement between the brake lever and the piston-cylinder assembly, the locking pawl being at least partially positioned directly below the bottom surface of the reservoir.

Abstract: The three-way valve simulator (100) for a vehicle brake servo comprises: a control piston (106); and a reaction piston (140) remote from the control piston when the simulator is at rest. It is arranged such that the control piston, under the effect of a command transmitted from outside the simulator, can be moved over a predetermined travel in the direction of the reaction piston without transmitting stress to the latter.

Abstract: An adjustment device for hydraulic brake systems includes a hollow case and a retractable unit. The hollow case has a rotatable ring to control the retractable unit. One end of the hollow case is connected to a hydraulic hose, and another end is connected to a brake lever. When the user adjusts the rotatable ring, the retractable unit exerts one adjustable pressure on the hydraulic oil constantly so that the user can easily press the brake lever to slow down the vehicles.

Abstract: A vehicle braking apparatus includes: a control piston configured to operate so that a reaction force based on the fluid pressure of the boosted fluid pressure application chamber is balanced with a braking operation input from the brake operation member; an elastic member including: a first face adapted to contact with a simulator piston connected to the brake operation member and slidably accommodated in the control piston; and a second face; a sliding member adapted to contact with the second face, the sliding member being accommodated in the control piston; a spring disposed between the sliding member and the control piston; and an odd-shaped portion disposed on at least one of the first and second faces of the elastic member, the odd-shaped portion configured to increase a contacting area of the elastic member and at least one of the simulator piston and the sliding member.

Abstract: A floating-disk type brake system that includes floating disk assemblies placed respectively in spaces between a rotating member, such as a wheel of a transportation machine or a rotating shaft of a machine tool, and a stationary member to reduce differences in the rotating speed of adjacent sliding surfaces of the floating disk assemblies in frictional sliding engagement. The floating-disk type brake system includes a first floating disk assembly and a first disk assembly that are arranged between the ring gear and the planet carrier of a planetary gear built in a transmission or the like, and the first floating disk assembly and the first disk assembly are pressed together into frictional engagement to brake a rotating shaft.

Abstract: A torque plate for a vehicle brake is comprised of a sheet metal body. The sheet metal body includes a center opening that defines a lateral axis and a plurality of mounting holes. The center opening receives an axle housing and the mounting holes are used to secure the vehicle brake to the torque plate. Each mounting hole is defined by a center axis that is non-parallel to the lateral axis.

Abstract: Methods, systems, and vehicles are provided for calibrating a braking system of a vehicle. The braking system has an electric motor, a pump, and a hydraulic accumulator. A speed of the vehicle is obtained, and a pressure within the hydraulic accumulator is measured. The pump is operated via an electric motor to provide hydraulic pressure to the hydraulic accumulator based on the speed of the vehicle and the measure of pressure of the hydraulic accumulator.

Abstract: A brake actuating device has an actuator functionally connected between a piston and a brake pedal lever. The actuator is capable of varying the path length of a force-conducting connection between the brake pedal lever and the piston of the brake cylinder via a displaceable element. A spring element acts on the brake pedal lever. The spring force varies during the variation of the path length such that a sum of the spring force and a force acting on the brake pedal lever from the brake cylinder remains essentially unchanged. The spring element is fastened with one end to the displaceable element and with the other end to the brake pedal lever with the interposition of a tensioning mechanism, which is guided by a cam track provided on the brake pedal lever.

Abstract: A braking system having a master cylinder to which wheel brake circuits (I, II) can be connected, a first piston coupled to a brake pedal, a second piston by means of which the master cylinder is actuated, a third piston actuated by the first piston and connected in a force transmitting fashion to the second piston, a simulation device which gives the driver of the vehicle a pedal sensation, an intermediate space between the second piston and third piston, a pressure generating device which controls the pressure in the intermediate space, a pressure medium reservoir vessel which is under atmospheric pressure and which can be connected hydraulically to the intermediate space, and means for electrically controlling the pressure in the intermediate space.

Abstract: A brake device for motor vehicles has a master brake cylinder for generating brake pressure at at least one wheel brake. To be able to vary the brake pressure at particular wheel brakes individually, a pressure modulation cylinder having a plurality of chambers is provided between the master brake cylinder and the wheel brakes, a first chamber being connected via a first fluid line to the master brake cylinder, and a second chamber being connected via a second fluid line to the at least one wheel brake. The first and second chambers are connected to each other via a fluid line in which a valve is situated.

Abstract: A vehicle braking system includes a brake associated with a respective wheel of the vehicle, a multi-pressure valve associated with the brake, and a controller electrically communicating with the multi-pressure valve. The multi-pressure valve receives fluid at a first pressure at a supply port and is capable of delivering the fluid at a delivery port at a plurality of pressure profiles. A control signal is transmitted to the multi-pressure valve. The multi-pressure valve delivers the pressurized fluid to the brake, via the delivery port, at one of the plurality of delivery pressure profiles based on the control signal.

Abstract: A wheel loader having good operability. The wheel loader has a machine body travelably supported on wheels; a working device supported on the machine body, the working device having a boom swingably supported at its base end side on the machine body, an arm swingably supported at and connected to the forward end side of the boom, and a working tool swingably provided on the forward end side of the arm; travel operation means for performing travel operation of the machine body; and a brake for braking, when the travel operation means is not operated and the arm is swung, the wheels in operative association with the swing of the arm.

Abstract: A brake device for a vehicle includes a brake pedal rotatably supported on a support shaft and extending in a front ward direction from the support shaft in the longitudinal direction of the vehicle. A master cylinder is located on the rear side of the support shaft in the longitudinal direction of the vehicle for generating a braking hydraulic pressure according to the rotational operation of the brake pedal. An operational amount detector is mechanically connected to the brake pedal for detecting the rotational amount of the brake pedal. The master cylinder includes an axis that is arranged vertically and is located above the support shaft with the operational amount detector being located on the rear side of the support shaft in the longitudinal direction of the motorcycle. Thus, the master cylinder and the operational amount detector can be densely arranged in the longitudinal direction of the vehicle.

Abstract: A VSA device (24), which controls vehicle behavior by individually controlling the pressure of brake fluid supplied from a slave cylinder (23) to a wheel cylinder (16, 17; 20, 23), is provided with: an accumulator (62) which can be connected to the wheel cylinder and the slave cylinder (23); an out-valve (60, 61) disposed on a fluid path between the wheel cylinder and the accumulator (62); a check valve (63) that allows only flow of brake fluid from the accumulator (62) to the slave cylinder (23); and a regulator valve (54) disposed on a fluid path between the wheel cylinder and a path between the check valve (63) and the slave cylinder (23). Brake fluid is discharged from the accumulator (62) to the slave cylinder (23) by reducing the driving force of an electric motor (32) of the slave cylinder (23), thereby rendering a special pump unnecessary and making it possible to reduce the weight, cost, and component count.

Abstract: A floating-disk type brake system that includes floating disk assemblies placed in spaces between a rotating member, such as a wheel of a transportation machine or a rotating shaft of a machine tool, and a stationary member to reduce differences in the rotating speed of adjacent sliding surfaces of the floating disk assemblies in frictional sliding engagement. The floating-disk type brake system includes a first floating disk assembly and a first disk assembly that are arranged between the ring gear and the planet carrier of a planetary gear built in a transmission or the like, and the first floating disk assembly and the first disk assembly are pressed together into frictional engagement to brake a rotating shaft.

Abstract: The present invention provides an input device of a vehicle brake system, the input device being a separate unit from an electric brake actuator, the electric brake actuator for generating a first fluid pressure, the input device of the vehicle brake system comprising: a master cylinder for generating a second fluid pressure; a stroke simulator for applying a simulated reaction force, the stroke simulator and the master cylinder forming an attachment body, with the stroke simulator disposed in communication with the master cylinder; and a component storage box provided on the attachment body for a component of either one of the master cylinder and the stroke simulator, wherein the attachment body has a vent hole with a first end in communication with the component storage box and a second end in communication with a space formed before a surface of a dashboard having the input device mounted thereon.

Abstract: A hydraulic vehicle brake system, which has a brake pressure signal generator which can be activated by a brake activation device, wherein the brake pressure signal generator can be connected to wheel brakes of the vehicle via at least one hydraulic line and is composed essentially of a master brake cylinder and a hydraulic booster which is connected upstream and which has a return flow chamber and a boosting chamber, a working piston arranged therein and a control piston, wherein the working piston is operatively connected in the force outputting direction to a master brake cylinder piston via an activation element, and a hydraulic pressure of a hydraulic pressure source can be applied to the booster via an inlet for the purpose of boosting braking force, wherein an outlet of the booster can be connected to a reservoir vessel.

Abstract: The present invention provides a hydraulic brake apparatus of a motorcycle, including a main frame having a pair of right and left frame members extending rearward from a head pipe, and equipment arranged in a space between the right and left frame members, the hydraulic brake apparatus further including at least one brake fluid pipe, wherein the at least one brake fluid pipe is arranged so as to extend rearward from near the head pipe along an upper surface at least one of the frame members.

Abstract: Provided is a method for controlling regenerative braking in an electric vehicle, including operating regenerative braking, checking if a data communication using a control area network (CAN) standard is properly made between a regenerative braking torque controller and a hydraulic pressure braking torque controller, and enabling the regenerative braking torque controller and the hydraulic pressure braking torque controller to maintain regenerative braking torque and hydraulic pressure torque at their respective previous levels or to increase regenerative braking torque and/or hydraulic pressure torque until braking ends, when the data communication fails between the regenerative braking torque controller and the hydraulic pressure braking torque controller.

Abstract: A brake assembly includes an operator brake pedal configured to be depressed at a brake pedal angle, and brake pedal linkage operatively connected to the operator brake pedal. The brake pedal linkage is configured to apply a braking force in response to the depression of the operator brake pedal. A brake pedal effort input is associated with the brake pedal angle, and a first rate of change of the brake pedal effort input with respect to the brake pedal angle may be associated with an initial range of motion of the operator brake pedal. A second rate of change of the brake pedal effort input with respect to the brake pedal angle may be associated with a subsequent range of motion of the operator brake pedal. The second rate of change may be greater than the first rate of change.

Abstract: A valve assembly including a housing (24?) provided with an inlet port (12?), a delivery port (14?), and an exhaust port (16?), the valve assembly further including a first movable element (32?), a first valve member (34a?) and a second valve member (26a?), the first movable element (32?) being engageable with the first valve member (34a?), engagement of the first valve member (34a?) and first movable element (32?) substantially preventing flow of fluid between the inlet port (12?) and the delivery port (14?), and the first movable element (32?) also being engageable with the second valve member (26a?), engagement of the second valve member (26a?) with the first movable element (32?) substantially preventing flow of fluid between the delivery port (14?) and the exhaust port (16?), the valve assembly further including a second movable element (26?) which divides the housing (24?) into a control chamber (22?) and a main chamber (30?) and which is movable relative to the housing (24?) under the influence of flui

Abstract: A hydraulic brake is used to a handle of a two wheel vehicle and contains a body including two first tabs, the handle including an axial hole and a through bore to receive an adjustable nut having a screw aperture to be screwed with first threads of a connecting post of a hydraulic piston, the body including a retaining sleeve and two second tabs, a hydraulic cylinder including an oil chamber and fitted to a holder, a positioning nut having an orifice screwed with second threads of the hydraulic cylinder, the holder including a receiving room to receive an oil cup, a pore, and a cover, an outer diameter of the pore of the holder being equal to that of the hydraulic cylinder, the hydraulic piston including the connecting post, and the connecting post including the first threads to screw the connecting post with the orifice of the positioning nut.

Abstract: A pneumatically actuatable clamping or braking device, has a housing with a space accommodating a hydraulic medium constructed least in part as a solid body. The space for accommodating the hydraulic medium is delimited on one side by a wall of the housing and on the other by a clamping or braking element. The device has at least one actuating element that acts on the hydraulic medium to produce a clamping or braking force which can be transmitted by the clamping or braking element to an impinging element. According to the invention, at least one actuating element is shaped like a pin or a spike. The actuating element is movable along a predetermined spatial curve, and acts on the hydraulic medium through an aperture in the wall of the housing delimiting the space for accommodating the hydraulic medium.

Abstract: A brake control apparatus includes an electric power supply, a fluid pressure source whose operating fluid pressure fluctuates by a driver's operation, a wheel cylinder for applying a braking force to a wheel using an operating fluid supplied from the fluid pressure source, a control valve provided between the fluid pressure source and the wheel cylinder and mechanically opened by a differential pressure when a higher pressure is applied to the fluid pressure source than to the wheel cylinder, and a control portion for opening/closing the control valve through a control current. The control valve is a normally open valve that is closed through a prescribed control current set not to mechanically open the control valve by the differential pressure during normal braking. The control portion closes the control valve through a control current smaller than the prescribed control current when the electric power supply is in a low-voltage state.

Abstract: A method for controlling the activation of a hydraulic vehicle brake system of a hybrid vehicle, which can be braked by generator operation of an electric drive motor, includes compensating for the braking effect of the electric drive motor and reducing a wheel brake pressure in the wheel brakes of the vehicle wheels by opening brake pressure-reducing valves, which are braked with the electric drive motor.

Abstract: A brake system is provided for minimizing brake pulsation feedback caused by surface variations of a brake system corner component. The brake system includes at least one sensing device configured to measure a pressure pulse caused by the surface variation of a brake system corner component. A controller module is in communication with the at least one sensing device and a hydraulic brake circuit. The controller module is configured to receive an output from the at least one sensing device and to adjust line pressure in the hydraulic brake circuit to substantially minimize brake pulsation feedback.

Abstract: An improved braking system and brake control method for a vehicle, in particular a truck, utilizes at least one pressure line for carrying a medium from at least one pressurized medium source to a brake device, and a brake pedal for receiving brake commands from a vehicle driver and for operating a brake line, which can be connected to the brake device. A pilot control valve with accompanying measuring capability quantitatively determines the brake pressure demanded by the vehicle driver.