A brake system damping device includes a first space to which hydraulic pressure is to be applied, a second space in which a compressible medium is situated, and a first separation element configured to separate the first space from the second space. The brake system damping device further includes a third space in which a compressible medium is situated and a second separation element configured the second space from the third space. The second space is connected in medium-conducting terms to the third space by a passage configured in the second separation element. The third space and the second separation element having the passage thereof are configured by an integral component.

A Vehicle Corner Module (VCM) based brake system, which includes a brake actuator, adapted to regulate the rotation rate of the wheel assembled to the VCM, a fluid-based brake power source, fluidly connected to the brake actuator and adapted to provide pressurized brake fluid for operating the brake actuator, and a brake-control-circuit, functionally associated with the brake actuator and with the brake power source, and adapted to provide functional inputs to the brake actuator based on a target rotation rate profile desired for a wheel mounted on the VCM. All mechanical components of the VCM-based brake system are disposed within the VCM. The VCM-based brake system and the vehicle platform are not in fluid communication with each other.

A brake system damping device includes a first chamber on which hydraulic pressure is to be applied, a second chamber with a compressible medium located therein, and a first separating element configured to separate the first and second chambers. The damping device further includes a third chamber with a compressible medium located therein and a second separating element configured to separate the second and third chambers. The second and third chambers are connected in a medium-conducting manner via a passage in the second separating element. The first separating element is configured to move a closure element to close the passage when the hydraulic pressure in the first chamber has reached a predefined pressure value. The third chamber is formed by the second separating element and a cover. The second separating element is retained on the cover by an interference fit in a fluid-impervious manner.

A brake-system damping device includes a first chamber, to which hydraulic pressure is to be applied, a second chamber, in which there is a compressible medium, and a first separating element for separating the first chamber from the second chamber. The brake-system damping device includes a third chamber, in which there is a compressible medium, and a second separating element for separating the second chamber from the third chamber. The second chamber is connected, for medium conduction, to the third chamber by means of a passage formed in the second separating element. A closure element is to be moved with the first separating element, by means of which closure element the passage is to be closed as soon as the hydraulic pressure has reached predefined pressure value in the first chamber.

A spring brake actuator is for braking a wheel of a vehicle. The spring brake actuator has an axially elongated housing having a parking brake chamber and a service brake chamber; a main compression spring in the parking brake chamber; a flexible diaphragm in the parking brake chamber; and a pressure plate in the parking brake chamber, the pressure plate located axially between the main compression spring and the flexible diaphragm. The flexible diaphragm has a contoured portion that inhibits radial shifting of the pressure plate with respect to the flexible diaphragm.

A pressure modulator for an anti-lock braking system of a bicycle. The pressure modulator includes a cylinder, and a piston having a through opening for hydraulic fluid, the piston being situated inside the cylinder and subdividing the cylinder into a first accumulator chamber and a second accumulator chamber, the first and second accumulator chambers being connectable to each other via the through opening. The pressure modulator further includes a valve system, which includes a closing element and an actuating device for the closing element, the closing element being situated in the through opening, and the actuating device being situated at a bottom of the cylinder, and an actuator for moving the piston.

According to one embodiment, for example, when it is determined that a certain condition has been satisfied while first antilock control is being executed, a controller of a brake control apparatus executes second antilock control by opening and closing a solenoid valve with a motor stopped so that brake fluid of the wheel cylinder is caused to flow into a reservoir, the second antilock control including a second pressure reduction mode, the second pressure reduction mode reducing a pressure of a wheel cylinder while substantially equilibrating the pressure of the wheel cylinder and a pressure of the reservoir at a certain pressure or larger, the certain pressure being larger than zero.

According to one embodiment, for example, when it is determined that a certain condition has been satisfied while first antilock control is being executed, a controller of a brake control apparatus executes second antilock control by opening and closing a solenoid valve with a motor stopped so that brake fluid of the wheel cylinder is caused to flow into a reservoir, the second antilock control including a second pressure reduction mode, the second pressure reduction mode reducing a pressure of a wheel cylinder while substantially equilibrating the pressure of the wheel cylinder and a pressure of the reservoir at a certain pressure or larger, the certain pressure being larger than zero.

Disclosed is a pulsation damping device of a hydraulic brake system including a first damper having a first damping chamber whose volume is varied by the hydraulic pressure of the brake oil, and a second damper having a second damping chamber whose volume is varied by the hydraulic pressure of the brake oil, wherein the volume change rate of the first damping chamber relative to the hydraulic pressure of the brake oil is provided to be larger than the volume change rate of the second damping chamber, and the hydraulic pressure of the corresponding brake oil in the first damping chamber when reaching the maximum variable volume is provided to be smaller than the hydraulic pressure of the corresponding brake oil in the second damping chamber when reaching the maximum variable volume.

Disclosed is a pulsation damping device of a hydraulic brake system including a first damper having a first damping chamber whose volume is varied by the hydraulic pressure of the brake oil, and a second damper having a second damping chamber whose volume is varied by the hydraulic pressure of the brake oil, wherein the volume change rate of the first damping chamber relative to the hydraulic pressure of the brake oil is provided to be larger than the volume change rate of the second damping chamber, and the hydraulic pressure of the corresponding brake oil in the first damping chamber when reaching the maximum variable volume is provided to be smaller than the hydraulic pressure of the corresponding brake oil in the second damping chamber when reaching the maximum variable volume.