A braking system for a vehicle may include a hydraulic brake pedal system having a master cylinder having at least one pressure chamber, from which a hydraulic output is coupled to at least one brake circuit via an infeed switch valve. The master cylinder is coupled to a reservoir via at least one opening via a hydraulic connection. A failure of a pressure chamber seal of the at least one pressure chamber of the master cylinder is safeguarded by at least one redundancy, and the failure of the pressure chamber seal or the redundancy of the pressure chamber seal of the at least one pressure chamber of the master cylinder can be diagnosed.

An electro-mechanical brake device comprising: a sensor unit comprising one or more sensors; an electronic parking brake (EPB) configured to fix a wheel of the vehicle when the vehicle is parked; a hydraulic braking unit configured to supply a braking force to a wheel brake using hydraulic pressure generated at a master cylinder; a driving control unit configured to determine whether braking is required for the vehicle based on at least one of a driver's braking intention, a change in the hydraulic pressure at the master cylinder, a vehicle status, an engine status and a transmission state, and further configured to determine whether an actuator has failed; and an actuator decision unit configured to, when the driving control unit determines that braking is required for the vehicle, brake the vehicle using any one of the hydraulic braking unit and the EPB depending on whether the actuator has failed.

A hydraulic motor vehicle braking system comprises an electronic stability control (ESC) system of dual-circuit design, a first brake circuit which acts on one or more first wheel brakes, and a second brake circuit which acts on one or more second wheel brakes. The first brake circuit comprises a first hydraulic pressure generator which is electrically controllable for control interventions, and the second brake circuit comprises a second hydraulic pressure generator which is electrically controllable, independently of the first hydraulic pressure generator, for control interventions.

A hydraulic unit for a slip-controlled brake system, the simulator receiving hole of which is aligned transversely to a master cylinder hole in a receiving body of the hydraulic unit, thus enabling a section of the simulator to be received in a cap of a control unit.

An electronic brake system is disclosed. An electronic brake system according to the present embodiment may be provided by including: a reservoir in which a pressure medium is stored; an integrated master cylinder which is connected to a brake pedal to discharge the pressure medium by an operation of the brake pedal and provides a pedal feeling to driver; a hydraulic pressure supply device for operating a hydraulic piston by an electrical signal output corresponding to a displacement of the brake pedal, to generate a hydraulic pressure in a single pressure chamber; and a hydraulic pressure control unit which is provided between the hydraulic pressure supply device and multiple wheel cylinders and controls a flow of the pressure medium supplied to the multiple wheel cylinders.

A brake system for a motor vehicle comprises a normally closed circuit separation valve such that the system is configured to operate in 1) in a by-wire mode when the circuit separation valve is open, such that pressure only from a pressure chamber of a linear actuator is delivered to both first and second pairs of wheel brakes, and 2) in a circuit separation mode with the circuit separation valve in the normally closed position, such that pressure from a tandem master cylinder is delivered only to the first pair of wheel brakes, and such that pressure from the pressure chamber of the linear actuator is concurrently delivered only to the second pair of wheel brakes. The system can provide braking pressure even in the event of a by-wire braking module leak that causes inoperability of an ECU.

A vehicle brake system includes a first main cylinder with a first main cylinder connection and a first actuating device with a first actuating connection. The first main cylinder connection is in flow-connection to the first actuating connection, and the first actuating device is operable with the first main cylinder. A first brake circuit is provided between a pump and a first wheel cylinder, where the pump in the first brake circuit is operable to generate pressure and move a fluid within the first brake circuit. A first valve device is provided in the first brake circuit where the first valve device is movable between a first configuration in which a flow connection is produced between the pump and the first wheel cylinder, and a second configuration in which a flow connection between the pump and the first wheel cylinder is prevented.

The present disclosure relates to an electronic brake system and an operation method thereof. The electronic brake system includes a reservoir in which a pressurized medium is stored, an integrated master cylinder including a simulation piston, a master piston, and an elastic member provided between the simulation piston and the master piston, a reservoir flow path to connect the integrated master cylinder and the reservoir, a hydraulic pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston according to an electrical signal output in response to a displacement of a brake pedal, a hydraulic control unit including a first hydraulic circuit having two wheel cylinders and a second hydraulic circuit having the other two wheel cylinders and configured to control the hydraulic pressure transferred to the first hydraulic circuit and the second hydraulic circuit, and an electronic control unit configured to control valves based on hydraulic pressure information and displacement information of the brake pedal.

Provided is an electronic brake system including, a master cylinder including a first piston connected to a pedal and a second piston configured to partition a first master chamber and a second master chamber provided in front of the first piston, a reservoir in which a braking fluid is stored, the reservoir connected to the first master chamber by a first reservoir passage, and connected the second master chamber by a second reservoir passage, a hydraulic pressure supply device configured to generate a hydraulic pressure by an electrical signal output in response to a displacement of the pedal, a first connection line configured to connect the first master chamber to a first hydraulic circuit, a second connection line configured to connect the second master chamber to a second hydraulic circuit, and a third connection line configured to connect the hydraulic pressure supply device to the reservoir, wherein a mechanical part including the reservoir and the master cylinder is installed in a first block, and an electronic part including the hydraulic pressure supply device and the first hydraulic circuit, the second hydraulic circuit is installed in a second block, and each of the first connection line, the second connection line, and the third connection line is provided to connect the first block to the second block.

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).