Abstract: A caliper brake apparatus according to this invention includes: a caliper main body supported on a vehicle body; a brake block that is capable of advancing and retreating relative to the caliper main body and sliding against the disc so as to apply a frictional force to the disc; a pressing mechanism that presses the brake block against the disc using a pressure of a working fluid; and an adjuster that supports the brake block on the caliper main body. The adjuster includes: an anchor pin that is provided to be capable of advancing and retreating relative to the caliper main body and supports the brake block on the caliper main body; a return spring that biases the brake block in a direction heading away from the disc; and a back pressure chamber defined on a back surface of the anchor pin, into which the working fluid is led.

Abstract: A brake dust collector for a motor vehicle for collecting brake dusk of a vehicle wheel brake has a dust collecting device with a filter element arranged in a filter receptacle. The filter element is designed as an exchangeable filter and is arranged exchangeable in a receiving space provided in the filter receptacle. The filter receptacle has a housing opening communicating with the receiving space. Through the housing opening the filter element is inserted into the receiving space and removed from the receiving space. The housing opening is located on a side of the filter receptacle that is facing away from the vehicle wheel brake.

Abstract: Disclosed is a vehicle compressed air supply device, comprising pressure maintenance valves for service brakes, which are positioned between a junction chamber and compressed air channels for primary brakes; a pressure maintenance valve for the parking brake, which is positioned between the junction chamber and a compressed air channel for the parking brake; and a pressure maintenance valve, positioned on a supply path that connects the pressure maintenance valve for the parking, brake with the junction chamber, and which is closed until the pressure of the compressed air that is supplied to the compressed air channels for the primary brakes reaches a prescribed pressure value. The pressure maintenance valve has the same structure as the pressure maintenance valves for service brakes and the pressure maintenance valve for the parking brake.

Abstract: Park brake systems comprising a motor shaft coupled to a brake drum, wherein the brake drum comprises a first groove and a second groove, wherein the brake drum is mounted to the motor shaft so as to rotate with the motor shaft, a first belt at least partially disposed in the first groove and about a first pivot linkage, a second belt at least partially disposed in the second groove and about a second pivot linkage, a first actuator piston coupled to an actuator and the first pivot linkage, a second actuator piston coupled to the actuator and the second pivot linkage, and a pivot base coupled to the first pivot linkage and the second pivot linkage are disclosed. Methods are also disclosed.

Abstract: A pressure control reservoir for a vehicle brake system is disposed in a hydraulic line extending from a master cylinder to a wheel cylinder through a pump. The pressure control reservoir includes a check valve which consists of a valve seat and a valve. The check valve is closed when an excessive pressure of brake fluid produced by the master cylinder. The valve is stationary. The valve seat is moved in response to an elevated level of the pressure of brake fluid into engagement with the valve, so that the check valve is closed. With these arrangements, the check valve is closed before a piston starts to move to change the volume of a reservoir chamber, thus permitting the volume of the brake fluid required to close the check valve to be decreased, which minimizes the uncomfortable feeling given to a driver of the vehicle when actuating the brakes.

Abstract: Provided is a piston valve of a shock absorber which can achieve both an effect of varying an attenuation force according to a pressure and an effect of varying an attenuation force according to a frequency region. The piston valve includes: a main valve unit coupled to a lower end of a piston rod formed with an orifice hole, to divide an inside of a cylinder into an extension chamber and a compression chamber, the main valve unit generating an attenuation force according to a difference of pressure between the extension chamber and the compression chamber; and a frequency sensitive valve unit installed at one side of the main valve unit and configured to generate an attenuation force according to a frequency of hydraulic fluid delivered through the orifice hole of the piston rod, wherein the frequency sensitive valve unit is installed within the main valve unit.

Abstract: A modular piston assembly is associated with an air spring assembly that has a bellows rolling over a surface of the piston assembly. The modular piston assembly includes a first piston portion adapted to fasten to an associated air spring bellows. A second piston portion separate from the first portion, is adapted to fasten to an associated mounting component. Interlocking members are provided to secure the first and second piston portions together, and/or any desired intermediate piston portions. Discrete air reservoirs may also be included in the modular piston assembly to increase the volume of the air spring.

Abstract: A shock absorber has a pressure tube with a piston assembly slidably disposed within the pressure tube and attached to a piston rod. The piston assembly divides the pressure tube into an upper working chamber and a lower working chamber. The piston assembly includes a frequency dependent valve assembly attached to the piston rod which defines a housing attached to the piston rod and a spool valve assembly. The spool valve assembly includes a spool valve and a bypass valve assembly that controls fluid flow through bypass passage that bypasses the piston assembly.

Abstract: A brake fluid pressure electrically generated by a slave cylinder (23) in accordance with an operation amount by a brake pedal (12) is supplied via a VSA system (24) to wheel cylinders (16, 17; 20, 21) provided respectively for wheels. This enables smooth braking by the wheel cylinders (16, 17; 20, 21) by using a brake fluid pressure pressurized by the slave cylinder (23) and including little pulsation. When the VSA system (24) is to individually control the brake fluid pressures supplied respectively to the wheel cylinders (16, 17; 20, 21) to control vehicle behavior, the slave cylinder (23) generates a brake fluid pressure corresponding to a total of the brake fluid pressures required for the wheel cylinders (16, 17; 20, 21). This configuration allows the slave cylinder (23) to generate a brake fluid pressure in just proportion.

Abstract: In a check valve in which a valve part is disposed in a valve part accommodating recess movably relative to a piston part, among the valve part accommodating recess, an anti-valve seat side accommodation space formed between a surface of the valve part accommodating recess in an anti-valve seat side of the valve part and a wall surface of the valve part accommodating recess are communicated to exit side fluid passages.

Abstract: Vehicle brake device comprises a master cylinder including a master chamber connected to a wheel cylinder, a drive pressure chamber in which a drive pressure is generated for driving a master piston and a fluid pressure chamber in which a fluid pressure is generated in response to a stroke position of the master piston and an operating characteristics setting device for setting operating characteristics of an electromagnetic valve. The operating characteristics include a relationship of the pressure differential in the fluid conduit between the master cylinder side and the wheel cylinder side with respect to the electromagnetic valve based on the supply amount of the electric power detected by the supplied electric power detecting device.

Abstract: An electronic control unit which includes: a sensor board to which a sensor for detecting a predetermined physical quantity is attached; a control board which controls an operation of an electric part based on the physical quantity detected by the sensor; and a housing which accommodates the sensor board and the control board, wherein the housing has a first room for accommodating the electric part, a second room for accommodating the sensor board and the control board in a stacked condition, and a partition portion for separating the first room and the second room from each other, wherein a recess which is opened to the second room is formed in the partition portion, and a sensor accommodating portion for accommodating the sensor is formed using the recess.

Abstract: A system, apparatus and method provide emergency differential braking for effecting braked steering of an aircraft. A brake input device is provided that not only allows for emergency and parking brake functions, but also enables differential braking. The brake input device (e.g., a parking and/or emergency brake lever, pedal, handle, etc.) can be used in a brake system including a brake system control unit (BSCU), one or more electro-mechanical actuator controllers (EMACs) and a brake assembly including one or more electrical actuators. Each EMAC is electrically coupled to one or more of the actuators so as to provide electrical power for driving the actuators. Each EMAC is also communicatively coupled to the BSCU so as to receive braking data therefrom. In an emergency, the input device sends braking signals directly to the brake actuators.

Abstract: A damper with an air spring includes: a damper main body having a cylinder and a piston rod inserted into the cylinder; and a cylindrical diaphragm attached to a side of the cylinder at a first end thereof and to a side of the piston rod at a second end thereof and forming an air chamber around the damper main body, in which a first attachment case to which the first end of the diaphragm is attached is fitted on an outer periphery of the cylinder, and an inner-diameter step portion of the first attachment case is brought into abutting contact with an upper end portion of the cylinder in an axial direction thereof, while a second attachment case to which the second end of the diaphragm is attached is fixed to the piston rod.

Abstract: Disclosed is an electrohydraulic brake system for use in vehicles which can be braked by means of generator operation of an electric drive motor. The brake system comprises, inter alia, a brake booster and an electronic control unit which is provided for distributing the braking effect between a generative component or recuperation braking component and a friction braking component. In order to optimize the take-up of pressure medium, in particular during recuperation braking, the brake booster (6, 11, 15) is configured to be electrically actuated by the electronic control unit (10). The boosting force generated by the brake booster (6, 11, 15) is exerted as a function of variables relevant to the brake system.

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 pressure control valve arrangement is described for controlling a fluid pressure in an ABS brake system of a vehicle such that, in the event of a tendency of individual wheels of the vehicle to lock, the brake pressure in at least one associated brake cylinder can be adaptively adjusted, including: a housing in which is formed at least one pressure-medium-conducting pressure medium duct and in which is provided a diversion of the flow of the pressure medium within the pressure medium duct from a portion of the pressure medium duct leading in one direction into a portion of the pressure medium duct leading in another direction, in which the pressure medium duct is produced together with the housing by primary forming, and in which the cross section of the pressure medium duct is oval and the major dimension of the oval cross section and the central axis of the pressure medium duct are arranged in a common plane, and the minor dimension of the oval cross section is perpendicular to the plane.

Abstract: A damper device includes an inner part having a cylindrical shape; an outer part including an annular space with a bottom to rotatably or relatively rotatably house the inner part from one cylinder end side; and a viscous fluid filled in the annular space. An outer side of the inner part is formed with a circular groove to fit an outside seal ring. Also, an inner side of the inner part is formed with a circular step surface positioned closer to the one cylinder end side than the circular groove, and positioning an inside seal ring. A depth of the circular groove has a dimension approximately half a thickness of the inner part at a portion forming the circular groove.

Abstract: A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. An electronically controlled valve assembly is disposed within the second rod guide member and is in communication with the first rod guide member.

Abstract: Disclosed is an integrated electronic hydraulic brake system including an actuator having a master cylinder and a pedal simulator, an electronic stability control (ESC), and a hydraulic power unit (HPU) which are configured as a single unit. The integrated electronic hydraulic brake system may include an integrated hydraulic control unit and a power source unit, wherein the power source unit is separately provided to isolate the operational noise, and the integrated hydraulic control unit and the power source unit are connected to each other via an external pipe.