An electropneumatic brake system for a utility vehicle includes a front first brake cylinder and a front second brake cylinder on a front axle, the front first brake cylinder and the front second brake cylinder being configured to brake respective first and second front vehicle wheels. The system also includes a rear first brake cylinder and a rear second brake cylinder on a rear axle, the rear first brake cylinder and the rear second brake cylinder being configured to brake respective first and second rear vehicle wheels. The system additionally includes a central brake control device configured to output brake control signals for pneumatic pressurization of the front first and second brake cylinders and the rear first and second brake cylinders, and further includes two front wheel revolution rate sensors and two rear wheel revolution rate sensors configured to sense respective wheel revolution rates.

An electro-hydraulic braking system includes a main casing. A hydraulic unit brake master cylinder is provided in the main casing. An outer end of a piston rod of the brake master cylinder is connected to an output top rod. Another end of the output top rod is provided with an input rod. The input rod is slidably connected in the main casing along only a length direction of the input rod, and another end of the input rod is provided with a push rod that is configured to transmit a brake pedal force. The main casing is further provided therein with a reset member configured to push the push rod away from the brake master cylinder to reset and a displacement sensor configured to sense a displacement of the push rod. The input rod and the output top rod include a spacing state and an abutment state.

An electro-hydraulic braking system includes a main casing. A hydraulic unit brake master cylinder is provided in the main casing. An outer end of a piston rod of the brake master cylinder is connected to an output top rod. Another end of the output top rod is provided with an input rod. The input rod is slidably connected in the main casing along only a length direction of the input rod, and another end of the input rod is provided with a push rod that is configured to transmit a brake pedal force. The main casing is further provided therein with a reset member configured to push the push rod away from the brake master cylinder to reset and a displacement sensor configured to sense a displacement of the push rod. The input rod and the output top rod include a spacing state and an abutment state.

A brake control system includes first and second brake control units for controlling braking of first and second bogies of a rail car. The brake control units include relay valves for controlling pressurized air flow from a main reservoir to brake cylinder pipes. A bypass conduit connects an outlet of a first brake control module to an outlet of a second brake control module. A fail-safe valve moves between open and closed positions. In the closed position, the fail-safe valve prevents a flow of the pressurized air between the brake control units. The fail-safe valve provides a first pilot pressure to a first relay valve upon a failure of the first brake control unit and provides a third pilot pressure to the second relay valve in response to a failure of the second brake control unit.

A brake control system includes first and second brake control units for controlling braking of first and second bogies of a rail car. The brake control units include relay valves for controlling pressurized air flow from a main reservoir to brake cylinder pipes. A bypass conduit connects an outlet of a first brake control module to an outlet of a second brake control module. A fail-safe valve moves between open and closed positions. In the closed position, the fail-safe valve prevents a flow of the pressurized air between the brake control units. The fail-safe valve provides a first pilot pressure to a first relay valve upon a failure of the first brake control unit and provides a third pilot pressure to the second relay valve in response to a failure of the second brake control unit.

Provided is an electronic brake system. The electronic brake system according to an embodiment of the disclosure includes a reservoir configured to store a pressing medium; a master cylinder connected to a brake pedal; a pedal simulator connected to the master cylinder; a hydraulic pressure supply device configured to generate hydraulic pressure by operating a hydraulic piston by an electrical signal output corresponding to a displacement of the brake pedal; a hydraulic control unit comprising a first hydraulic circuit and a second hydraulic circuit, and configured to control hydraulic pressure transmitted to the first hydraulic circuit and the second hydraulic circuit, the first hydraulic circuit including a first wheel cylinder and a second wheel cylinder, the second hydraulic circuit including a third wheel cylinder and a fourth wheel cylinder.

Provided is an electronic brake system. The electronic brake system according to an embodiment of the disclosure includes a reservoir configured to store a pressing medium; a master cylinder connected to a brake pedal; a pedal simulator connected to the master cylinder; a hydraulic pressure supply device configured to generate hydraulic pressure by operating a hydraulic piston by an electrical signal output corresponding to a displacement of the brake pedal; a hydraulic control unit comprising a first hydraulic circuit and a second hydraulic circuit, and configured to control hydraulic pressure transmitted to the first hydraulic circuit and the second hydraulic circuit, the first hydraulic circuit including a first wheel cylinder and a second wheel cylinder, the second hydraulic circuit including a third wheel cylinder and a fourth wheel cylinder.

A method for operating a braking system of a vehicle, wherein the braking system comprises a primary hydraulic braking system and a brake actuation unit hydraulically decoupled from the primary braking system. The brake actuation unit comprises at least two sensor arrangements which are configured to detect, independently of one another, actuation information of the brake actuation unit describing a brake request. The method comprises determination of a first actuation information by a first of the sensor arrangements, determination of a second actuation information by a second of the sensor arrangements, checking whether the respective determined actuation information is valid, and if the actuation information is valid, checking whether the determined items of actuation information are mutually plausible, and implementation of the brake request according to the actuation information and/or issue of a warning and/or performance of a predefined braking maneuver by the braking system depending on the validity and plausibility of the actuation information.

A method for operating a braking system of a vehicle, wherein the braking system comprises a primary hydraulic braking system and a brake actuation unit hydraulically decoupled from the primary braking system. The brake actuation unit comprises at least two sensor arrangements which are configured to detect, independently of one another, actuation information of the brake actuation unit describing a brake request. The method comprises determination of a first actuation information by a first of the sensor arrangements, determination of a second actuation information by a second of the sensor arrangements, checking whether the respective determined actuation information is valid, and if the actuation information is valid, checking whether the determined items of actuation information are mutually plausible, and implementation of the brake request according to the actuation information and/or issue of a warning and/or performance of a predefined braking maneuver by the braking system depending on the validity and plausibility of the actuation information.

A braking system for vehicles may have a first brake group, a second brake group and a third brake group. A first and a second control unit may be provided for the brake groups. The first control unit may be connected to the first brake group by a piloting device for an actuator of the first brake group. The second control unit may be connected to the second brake group by a piloting device actuator of the second brake group. The second control unit may be connected to the third brake group by a piloting device for an actuator of the third brake group. The first control unit may be connected to a first power source, and the second control unit may be connected to a second power source. Each control unit may be programmed to implement a standard braking strategy and a fault braking strategy.