Abstract: An object of the invention is to prevent abnormal noise from being generated when the pressure of brake fluid supplied to a brake caliper is reduced. A vehicle brake device includes first and second hydraulic brakes generating a. hydraulic brake force and a regenerative brake generating a regenerative brake force and divides a braking force into the hydraulic brake force and the regenerative brake force. The vehicle brake device includes a regulating valve that is provided between the first and second hydraulic brakes and continuously regulates the flow rate of brake fluid flowing to the second hydraulic brake from the first hydraulic brake, and a pressure reducing valve that reduces the pressure of the brake fluid supplied to the second hydraulic brake, An opening of the regulating valve is continuously increased and the pressure reducing valve is opened, when the hydraulic brake force of the first hydraulic brake is reduced.

Abstract: A brake hydraulic pressure controlling apparatus for a vehicle includes a hydraulic pressure block included in a hydraulic pressure unit and including therein a hydraulic circuit, a plurality of electromagnetic valves attached on a surface of the hydraulic pressure block and changing an opening degree of a passage of the hydraulic circuit, and an electronic control unit including an ECU board, which is electrically connected to the electromagnetic valves and on which an electronic control device executing a driving control of each of the electromagnetic valves is provided, and attached on the surface of the hydraulic pressure block so that the ECU board is covered by a case, wherein the ECU board of the electronic control unit is arranged within an area of the surface of the hydraulic pressure block and all of the plurality of the electromagnetic valves are arranged adjacently around the ECU board.

Abstract: Provided is an electric brake capable of accurately estimating the brake pad temperature and securing a sufficient braking force and response. An electric brake has a disc rotor rotating with a wheel, an actuator for rectilinearly actuating a piston in the axial direction of the disc rotor by using an electric motor, a drive controller for controlling the drive of the actuator, a brake pad pressed by the piston to give a frictional resistance to the disc rotor in the direction of rotation, and a braking start position detector for detecting a braking start position of the piston where the disc rotor is brought into contact with the brake pad. The drive controller stores the braking start position detected by the braking start position detector as the maximum braking start position. When the braking start position shifts in the pressing force-increasing direction, the drive controller updates the value stored as the maximum braking-start position.

Abstract: An auxiliary braking system and method of controlling the braking a towed vehicle is provided that includes a remote control that is in selective communication with an auxiliary braking unit positioned in a towing vehicle. More specifically, it is often desirable for the operator of the towing vehicle to assess the performance of the auxiliary braking apparatus positioned in a towed vehicle. In addition, it is often advantageous for the operator to perform real time adjustments to the performance parameters of the auxiliary braking apparatus positioned in the towing vehicle without having to cease driving and physically access the auxiliary braking device.

Abstract: A braking control system includes sensors for detecting pressure applied to a brake pedal. The system can also include a pressure sensor capable of detecting the hydraulic pressure of the braking system. The system can also include a position sensor for detecting a position of the brake pedal. The pressure applied to the brake pedal is compared to either the hydraulic pressure or the pedal position. If the resulting measurements are not correlated properly, braking countermeasures are applied. Braking countermeasures can include engine braking, regenerative braking, hydraulic assist, and brake pad assist.

Abstract: A brake system includes a main brake cylinder and a pedal decoupling unit provided with a holding piston, the first ring surface thereof together with a first primary brake cylinder piston defining a first hydraulic chamber that is hydraulically pressurized with an electrically controllable pressure supply device. In order to improve the pedal characteristics of the brake system, in particular in a brake-by-wire brake system, the holding piston is embodied as a differential piston, the second ring surface thereof defining a second, blockable hydraulic chamber, and a piston effect in the second chamber corresponds to a force that acts counter to the direction of actuation on the holding piston.

Abstract: A method and system for controlling regenerative braking of a hybrid electric vehicle. The regenerative braking system has a driver-operable brake pedal, a hydraulically actuated friction brake for at least one front wheel, an anti-lock braking system hydraulically connected to said hydraulically actuated friction brake, and an electrically actuated friction brake for at least one rear wheel. The regenerative braking system further comprises an electric machine connected to said at least one rear wheel and capable of performing regenerative braking of said at least one rear wheel, and an electronic control unit that controls the stability of said hybrid electric vehicle, wherein said regenerative braking system is configured to provide increased braking torque of said front hydraulically actuated friction brake by means of said anti-lock braking system for compensating a decreased or limited rear wheel braking torque initiated by said electronic control unit.

Abstract: An apparatus to control a reaction force of an accelerator includes a detector to detect an opening degree of the accelerator, and a controller to increase the reaction force by a first force magnitude during a period in which the vehicle transitions from a first operational state to a second operational state in response to an increase in the opening degree of the accelerator, wherein the controller increases the reaction force if the accelerator opening degree is increased within a predetermined time period after the reaction force is increased by the first force magnitude, wherein the first operational state corresponds to a low specific fuel consumption and the second operational state corresponds to a high specific fuel consumption, and wherein the controller decreases the reaction force by the first force magnitude in response to a reduction in the opening degree of the accelerator.

Abstract: The invention relates to a method in which the driving stability of a vehicle is controlled, wherein a yaw rate difference is influenced by an additional yaw moment which is generated at least partially by building up braking torque independently of the driver at one or more wheels. According to the invention, the braking torque which influences the additional yaw moment is variably apportioned between the front axle and the rear axle of the vehicle in an oversteering situation.

Abstract: A brake system and method for operating same for a vehicle having a master brake cylinder, a brake medium reservoir, a first wheel brake cylinder, into which a first brake medium volume is displaceable from the master cylinder, a second wheel brake cylinder, into which a second brake medium volume is displaceable from the master cylinder, and a pump, which is hydraulically connected to the brake medium reservoir, the first wheel brake cylinder being hydraulically connected to the pump via a first non-return valve and the second wheel brake cylinder being hydraulically connected to the pump via a second non-return valve so that the pump can pump a third brake medium volume from the brake medium reservoir through the first non-return valve into the first wheel brake cylinder and a fourth brake medium volume from the brake medium reservoir through the second non-return valve into the second wheel brake cylinder.

Abstract: A brake control apparatus for a vehicle provided with a regenerative braking device, the brake control apparatus includes: a first brake circuit connecting a master cylinder configured to generate a brake hydraulic pressure by a brake operation of a driver, and a wheel cylinder to which the brake hydraulic pressure is applied; a booster configured to increase a pressure of a brake fluid within the master cylinder, and to transmit the pressurized brake fluid to the wheel cylinder through a second brake circuit connected with the first brake circuit; a third brake circuit bifurcated from the first brake circuit, and connected with the booster; a reservoir provided on the third brake circuit; and a recirculating device configured to recirculate the brake fluid stored in the reservoir, to the first brake circuit's side.

Abstract: The disclosure describes, in one aspect, a method of braking a machine having an electric drive configuration. The electric drive configuration includes at least one electric retarding system connected to a first set of wheels. Additionally, a first friction brake system connects to the first set of wheels to provide a braking output torque. A second friction brake system connects to a second set of wheels and provides a second braking output torque. The system calculates and applies a braking ratio between the electric and friction braking systems based upon both user controls and conditions encountered.

Abstract: A vehicle brake system and method for operating same, having a master brake cylinder, a brake medium reservoir, and a first brake circuit, connected via a reservoir line to the brake reservoir, having at least one first wheel brake cylinder, a first wheel inlet valve associated with the first brake cylinder, a first pump, by which a first brake medium volume is pumpable from the reservoir line through the open first wheel inlet valve into the first brake cylinder, a continuously adjustable first wheel outlet valve, by which a first brake medium displacement from the first cylinder into the brake reservoir is controllable, and a connecting line having a spring-loaded non-return valve, via which a delivery side of the first pump is connected to the brake reservoir, a brake medium displacement from the brake reservoir to the delivery side of the first pump being prevented by the spring-loaded non-return valve.

Abstract: A brake apparatus includes: a master cylinder generating a master cylinder fluid pressure; a wheel brake device applying a braking force to the wheels; a control fluid pressure generation device including a fluid pressure control valve and a fluid pressure pump; an electric motor driving the fluid pressure pump; a control fluid pressure setting unit setting a control fluid pressure; wherein the control fluid pressure generation device rotates the electric motor to circulate a brake fluid and applies a control current to the fluid pressure control valve to thus generate the control fluid pressure in the fluid pressure control valve, and a target rotation number setting unit configured to calculate a pump-necessary discharge flow rate and a brake fluid amount, and set a target rotation number of the electric motor based on the pump-necessary discharge flow rate.

Abstract: A brake device can prevent deterioration of braking force by applying a predetermined pressure in the drive hydraulic pressure chamber even when an electric system failure occurs. The brake device includes a stroke simulator portion, regulator, a first passage connecting the accumulator and the high pressure port of the regulator, a second passage connecting the reservoir tank and the low pressure port of the regulator, a third passage connecting the stroke simulator portion and the pilot pressure input port of the regulator, a fourth passage connecting the drive hydraulic pressure chamber and the output port of the regulator and a fifth passage connecting the accumulator and the drive hydraulic pressure chamber bypassing the high pressure port. The normally open type pressure decrease control valve is provided in the second passage or in the fourth passage whereas the normally closed pressure increase control valve is provided in the fifth passage.

Abstract: A brake control apparatus used for a vehicle having a regenerative braking system has a brake circuit connecting a master cylinder and a wheel cylinder; a pump; a gate-out valve; a reservoir capable of storing a brake fluid that flows out from the master cylinder; and a control unit. The control unit has a brake fluid storage controlling section that stores the brake fluid flowing out from the master cylinder in the reservoir; a pressure increase controlling section that controls the gate-out valve in a valve closing direction and supplies the brake fluid stored in the reservoir to the wheel cylinder by the pump then increases the wheel cylinder pressure; and a pressure decrease controlling section that, when the regenerative braking system operates, pours the brake fluid supplied to and pressurized in the wheel cylinder into the reservoir through the pump then decreases the wheel cylinder pressure.

Abstract: A brake system and a method for operating same for a vehicle having a first wheel brake cylinder, into which a first brake medium volume is displaceable from a master brake cylinder, a second wheel brake cylinder, into which a second brake medium volume is displaceable from the master brake cylinder, a first pump associated with the first wheel brake cylinder and a second pump associated with the second wheel brake cylinder, the brake system including a block valve coupled to the brake medium reservoir, the first pump being able to pump a third brake medium volume through the at least partially open block valve and a first non-return valve into the first wheel brake cylinder, and the second pump being able to pump a fourth brake medium volume through an at least partially open block valve and the second non-return valve into the second wheel brake cylinder.

Abstract: A system for simulating brake feel for a vehicle braking installation comprising a hydraulic braking system (7, 8) and an electric braking system (9). This system comprises a first chamber (20) containing a force transmitting fluid (21) and in which there slides a hydraulic piston (22) under the control of a manual braking operating member (1), the first chamber (20) communicating with a second, secondary simulation chamber (4) via a simulation valve (3), the degree of opening of which allows a force to be simulated at the brake pedal.

Abstract: A brake system in an electric drive dump truck. The electric drive dump truck has a generator 11 driven by an engine 10 and traveling motors 13L, 13R driven with electric power generated by the generator 11. Hydraulic brakes 20L, 20R, 21L, 20R are operated by brake pedal 18. An oil pressure sensor 22 detects hydraulic fluid pressure produced in accordance with the amount of depression of the brake pedal 18 and a control unit 14 controls the traveling motors 13L, 13R so as to operate them as generator-type retarders when the hydraulic fluid pressure P detected by the oil pressure sensor 22 is not smaller than a predetermined value P1.

Abstract: The invention relates to a brake system which comprises an actuating device (26), especially a brake pedal (30), and a control/regulation device (22). Said control/regulation device (22) controls an electromotive drive device (8) in response to the movement and/or position (38) of the actuating device (30). The drive device (8) adjusts a piston (1) of a piston/cylinder system via a non-hydraulic transmission device (6), thereby adjusting a pressure in the working compartment (4?) of the cylinder (4). Said working compartment (4?) is connected to a wheel brake (15, 17) via a pressure conduit (13). In case of drive device (8) failure, the actuating device (26) adjusts the piston (1) or the drive device (8).

Abstract: A wheel braking controller of a vehicle includes a brake lever operated by a rider, a master cylinder generating a hydraulic pressure according to an operation force of the brake lever, and a brake caliper braking a front wheel based on operation of the brake lever, a channel switching unit provided between the master cylinder and the brake caliper and switching channels of a brake fluid. A hydraulic pressure generator generates a hydraulic pressure based on operation of the brake lever and the driving state of the vehicle and controlling braking of the front wheel using the brake caliper by the hydraulic pressure. A braking controller including the channel switching unit and the hydraulic pressure generator is integrally provided on one body. The wheel braking controller so configured reduces the number of parts, and provides for easy mounting of the controller on the vehicle body.

Abstract: A brake apparatus includes: a fluid pressure control valve; a fluid pressure pump; a feedback control circuit correcting a control power corresponding to an feedback control target rotation number of a motor and feed the corrected control power to a motor; a feed forward control circuit configured to feed, to the motor, a control power corresponding to an feed-forward control target rotation number of the motor; and an abnormal control fluid pressure generation control device, if a rotation number detector is abnormal, rotating the electric motor with the rotation number higher than the feedback control target rotation number by a margin rotation number, increases the brake fluid passing through the fluid pressure control valve, and changes the control current to be supplied to the fluid pressure control valve so that the wheel cylinder fluid pressure is not changed.

Abstract: Disclosed is a regenerative braking system capable of minimizing uncomfortable feeling during the braking operation while improving responsiveness and control performance by performing the braking operation using an electric motor. An electro-mechanical braking system is used when braking a rear wheel or front and rear wheels, so variable frictional braking is achieved, thereby maximizing the recovery rate of the regenerative energy.

Abstract: In a control apparatus for a vehicle, a brake control unit includes: a master cylinder state variable detecting section configured to detect a master cylinder state variable related to a state of a master cylinder; a first regenerative braking force calculating section configured to calculate a first regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is smaller than a predetermined state variable; a second regenerative braking force calculating section configured to calculate a second regenerative braking force when the master cylinder state variable detected by the master cylinder state variable detecting section is equal to or larger than a predetermined state variable; and a braking control section configured to calculate the liquid pressure braking force on a basis of at least one of the calculated first and second regenerative braking forces.

Abstract: In a vehicle brake device, a port is provided at a hydraulic chamber of a master cylinder and communicates with a reservoir tank. A piston movable in the hydraulic chamber for closing the port is provided with at least one piston-side port that faces on the port when at a first position. When a brake pedal is stepped on from a retracted state to move the piston from the first position to a second position spaced from the first position by a predetermined distance, the hydraulic chamber is blocked from the communication with the reservoir tank. The at least one piston-side port is provided therein with an orifice, so that the hydraulic pressure in the hydraulic chamber is raised at the time of a quick stepping of the brake pedal but is allowed to flow to the reservoir tank without being raised at the time of a non-quick stepping.

Abstract: In a vehicle brake device, when a brake pedal is depressed normally, high regeneration efficiency and high fuel efficiency can be achieved by positively utilizing the regenerative braking force, and early applying of basic hydraulic braking force can be achieved when the brake pedal is suddenly depressed. The vehicle brake device includes an operation force transmitting mechanism on a connecting member between the brake pedal and the master cylinder piston and having first and second rods and a spring member biasing the first and second rods in a direction separating both rods from each other. The operation force transmitting mechanism includes an inner space between both rods and a communication passage allowing communication of the inner space with the exterior. The communication passage restricts the outflow of fluid in the inner space upon an emergency brake pedal depression and allows the outflow thereof upon non-emergency brake pedal depression.

Abstract: A regenerative braking system for a vehicle improves accuracy of a control. The regenerative braking system for a vehicle is operated by hydraulic pressure. The regenerative braking system may include a first cylinder adapted to directly generate hydraulic pressure by a driver's maneuver; a second cylinder adapted to generate hydraulic pressure necessary for braking of the vehicle and to deliver the hydraulic pressure to a wheel; a hydraulic pressure generator adapted to recognize braking force demanded by the driver and to generate hydraulic pressure; and a first valve interposed between the first cylinder and the second cylinder and adapted to selectively supply the hydraulic pressure generated by the first cylinder to the second cylinder.

Abstract: A brake system (1) having a number of sub-assemblies including a foot brake pedal (14) whose two stages correspond to service and emergency modes. Pneumatic brake modules (6) are assigned to each axle and have a proportional solenoid valve EVP (9). At least one deceleration controlling UCD unit (12) receives information from the pedal related to the pedal's position and electrically controls the brake motor (31) and/or the EVP in the service and emergency modes. A pneumatic control circuit, which is actuated in the emergency mode, controls the EVP directly from the pneumatic box (19) of the pedal. The brake system (1) is suitable for articulated multi-axle road vehicles and used, in particular, for passenger transport.

Abstract: A brake control apparatus for a vehicle provided with a regenerative braking system includes a hydraulic circuit where a first passage connects a master cylinder to a wheel cylinder. A second passage connects a discharge side of a pump to a first portion of the first passage. A third passage connects a suction side of the pump to a second portion of the first passage between the master cylinder and the first portion. A fourth passage connects the suction side of the pump to a third portion of the first passage between an inflow valve and the wheel cylinder. A reservoir is disposed in a section of the fourth passage between the outflow valve and third passage. A cutoff valve in a section of the fourth passage between the reservoir and third passage operates depending on operation of the regenerative braking system.

Abstract: The present interface system includes a controller monitoring pressure on a locomotive brake pipe port, controlling pressure on a train brake pipe port in response to the pressure on a locomotive brake pipe port, providing ECP commands on an ECP trainline via a train electrical terminal in response to the pressure on the locomotive brake pipe port, and providing electrical power on the ECP trainline via an train electrical trainline terminal from the locomotive electrical trainline terminal. A transceiver is connected to the controller for wireless communication with the controller. A wireless display unit communicates via the transceiver with the controller and displays information from the controller to the operator remote from the interface system and provides inputs from the operator to the controller. The system also includes a three position change over valve. An event recorder and a GPS system may be connected to the controller.

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: An air braking system for a vehicle blends regenerative and foundation braking during low deceleration conditions in an effective and controlled manner. The braking system also includes a mechanical override that bypasses system electronics in response to an aggressive brake request such that treadle circuit pressure is sent directly to a brake relay circuit to actuate vehicle brakes.

Abstract: An air braking system for a vehicle blends regenerative and foundation braking during low deceleration conditions in an effective and controlled manner. The braking system also includes a mechanical override that bypasses system electronics in response to an aggressive brake request such that treadle circuit pressure is sent directly to a brake relay circuit to actuate vehicle brakes.

Abstract: A brake control apparatus for a vehicle provided with a regenerative braking system includes a hydraulic circuit where a first passage connects a master cylinder to a wheel cylinder. A second passage connects a discharge side of a pump to a first portion of the first passage. A third passage connects a suction side of the pump to a second portion of the first passage between the master cylinder and the first portion. A fourth passage connects the suction side of the pump to a third portion of the first passage between an inflow valve and the wheel cylinder. A reservoir is connected to the third passage and a portion of the fourth passage between an outflow valve and the suction side of the pump. A shut-off valve restricts brake fluid discharge through a discharge-side valve from the pump being driven.

Abstract: A motor vehicle (12) has a chassis (16) with wheels (26, 34) on which the motor vehicle travels, a powertrain having an engine (20) coupled to at least one of the wheels, a primary brake system (38) for braking the motor vehicle via foundation brakes at the wheels, and a secondary brake system for braking the vehicle via at least one powertrain brake mechanism (57) that can apply brake torque to at least one of the wheels to which the powertrain is coupled. The primary brake system has a mechanical operator (40) that when operated by a driver causes pressure to be created in the primary brake system for operating the foundation brakes to apply brake torque correlated with magnitude of the pressure. A device (42) signals a controller (44) that the foundation brakes are being applied. A selector (58) available to the driver signals the controller for selectively enabling use of the secondary brake system in conjunction with the primary brake system.

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 method in which a brake system for a motor vehicle is controlled and/or regulated. The motor vehicle having at least one electrically regenerative brake and a pressure-medium-operated, in particular a hydraulic brake system with friction brakes, wherein the wheel brakes assigned to the individual wheels are arranged in at least two brake circuits which can be charged with a pressure medium by a first brake pressure generator, in particular a tandem master brake cylinder, and wherein each brake circuit includes at least one pressure accumulator and at least two electronically activatable hydraulic valves. During a braking process with the one or more electrically regenerative brakes, by suitable activation of at least one hydraulic valve, at a point in time, the pressure medium is discharged only into precisely one predetermined pressure accumulator. The invention also relates to a corresponding brake system.

Abstract: A brake monitoring system and method for a vehicle having multiple axles and a plurality of brake actuators and an engine control module, each brake actuator being associated with one of the axle. The system include sensors for measuring, in real-time, brake pressure and brake lining wear, and generating first and second signals. The first and second signals are received and stored in a chassis communications module. The chassis communications module detects fault condition of the brakes as a function of the first and/or second signals and for recording the fault condition, the fault condition being one of a brake monitor warning and a brake lining warning and provides an indication of status via warning lights.

Abstract: The method and system for increasing accuracy of clamping force of electric aircraft carbon brakes, once braking has been commenced, provides a first pair of electric brake actuators with a range of low brake clamping force responsive to low brake clamping force commands, and a second pair of electric brake actuators with a range of high brake clamping force responsive to high brake clamping force commands. The first pair of electric brake actuators is actuated to apply a minimum residual braking force once wheel braking is commenced, and the second pair of electric brake actuators is actuated only when the commanded braking force is in the high range of brake clamping force.

Abstract: There is provide a brake control technology according to which a target hydraulic pressure is reliably achieved when a hydraulic pressure is decreased during hydraulic control and brake drag does not occur even when the target hydraulic pressure is zero. In a brake apparatus, a dead-band region is set for the target hydraulic pressure that is used in the hydraulic control. When braking control is switched from the hydraulic control to regenerative control in cooperative braking control, residual pressure reduction control is executed. In the residual pressure reduction control, the target hydraulic pressure is set to a value that is lower than zero to which the hydraulic pressure should be brought.

Abstract: A valve unit for an electro-pneumatic brake control device for controlling a parking brake of a vehicle includes at least one air-quantity-boosting valve device for aerating and venting at least one spring brake cylinder of the parking brake and at least one electrically actuatable control valve for controlling the air-quantity-boosting valve device. To simplify the construction of the brake control device, the air-quantity-boosting valve device and the control valve are integrated in a common integral valve block.

Abstract: A hand brake control system for a rail vehicle hand brake having a release trigger. The system includes a cylinder for activating the release trigger of the hand brake and a source of pressure. A first valve selectively connects either the source of pressure at a first input or a second input to the cylinder at an output. A second valve selectively connects either the source of pressure or exhaust to the second input of the first valve at the output of the second valve. The first valve is a manually operated valve and the second valve is an electro-pneumatic valve. Linkage allows actuation of the first valve from at least two location about the vehicle.

Abstract: An electrically controlled brake system for a tractor is provided that is equipped with an anti-jackknifing brake that can be actuated by means of a manual operating element and that acts only on the brakes of a trailer coupled to the tractor. The operating element is an electrical element which generates an electrical signal to control a valve device by means of which the braking force of the anti-jackknifing brake can be increased.

Abstract: A main brake cylinder for a hydraulic vehicle brake system of a motor vehicle is disclosed. The main brake cylinder includes an electric motor that is operated as a generator for decelerating the motor vehicle. For service braking, pressure is applied to a brake circuit by the main brake cylinder and to another brake circuit by a hydraulic pump. In order to reduce a pedal force, a first piston has a smaller piston surface and a second piston only moves if a greater brake fluid volume is required. A preloaded hydraulic accumulator limits an increase in pressure.

Abstract: In a brake-by-wire brake system for a motorcycle, a pressure regulator is interposed between a pressure-generating unit and a brake caliper to regulate an output hydraulic pressure of the pressure generator, and to apply the regulated hydraulic pressure to a brake caliper. The pressure regulator is controlled by a control unit, based on input from an applied operating force detector, to minimize or prevent influences of engine vibration and heat on the pressure regulator. The pressure regulator is arranged between an engine body and a fuel tank disposed in back of an intake system connected to and extending upwardly from a cylinder head of the engine body; where the intake system is disposed on an upper side of the engine body. The pressure regulator is flexibly supported, through a flexibly resilient case, by a support cage attached to a body frame.

Abstract: A system and method for braking a drawbar trailer having a front axle and one or more further axles, each axle having at least two wheels, includes first sensors which sense the axle load of at least one axle, and second sensors which sense the rotational wheel speeds. Brakes actuatable with a pneumatic brake pressure brake the trailer. Brake signals generated in the towing vehicle are transmitted between the towing vehicle and the trailer. A control unit receives these brake signals and the sensor signals, and determines the axle load. The operating pressure is adapted to the brake pressure which is fed to the brakes. The control unit detects the brake pressure value as a function of (i) the specific axle loads of the front axle and the other axles and (ii) the received brake signals, and actuates the brakes such that the detected brake pressure is made available.

Abstract: A system and method of remotely controlling the parking brake of a disabled vehicle to be towed by a towing vehicle includes using the hydraulic fluid of towing vehicle to control the parking brake operation of the disabled vehicle. The towing vehicle is equipped with a control valve and brake release manifold assembly. The brake release manifold assembly provides a source of hydraulic fluid of controlled pressure. The towing vehicle has means to connect the controlled pressure hydraulic fluid of the towing vehicle to the parking brake system. The towing vehicle also has means to control and monitor the flow of hydraulic fluid to the disabled vehicle in order to either release or apply the brakes when desired.

Abstract: An input rod is operated by a brake pedal to introduce the air into a variable-pressure chamber through a control valve to propel a power piston, thereby advancing a primary piston to generate a brake fluid pressure in a master cylinder. A part of the reaction force from the fluid pressure is transmitted to the input rod through a reaction member. The primary piston is provided with an idle stroke in which no fluid pressure is generated, and the reaction force to be transmitted to a plunger is limited by a reaction force adjusting spring. In the region of the idle stroke, a fluid pressure is supplied to a wheel cylinder through a fluid pressure control unit to perform regenerative cooperative control, and a reaction force from a reaction spring is applied to the input rod.

Abstract: A hydraulic vehicle brake system has a pedal travel simulator having a primary chamber and a secondary chamber, between which a piston is situated so as to be displaceable, the secondary chamber being fluidically connected to a storage chamber. Brake fluid from the storage chamber is able to be supplied via a hydraulic pump.

Abstract: In a brake system including a master cylinder and an electrically-driven hydraulic pressure generator with front and rear pistons, when the hydraulic pressure generator cannot be operated and a failure of a first hydraulic system linked to a rear fluid chamber of the generator occurs and makes a first hydraulic system open to the atmosphere, the brake-fluid pressure of a second hydraulic system transmitted from the master cylinder to a wheel cylinder via a front fluid chamber of the generator is used to perform braking. A forward-facing third front cup seal provided at an intermediate portion of the front piston prevents the brake-fluid pressure generated by the master cylinder from leaking out from a front supply port via the rear fluid chamber. At the same time, a stopper prevents the pressure of the front fluid chamber from moving the front piston excessively backward. The braking is accordingly secured by use of the second hydraulic system linked to the front fluid chamber of the motor cylinder.