A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

An electronic brake system according to an embodiment of the present disclosure includes a first pedal travel sensor and a second pedal travel sensor each including two internal sensors and outputting a pedal detection signal according to an operation of a brake pedal; and a first ECU (electronic control unit) may receive a first pedal detection signal from a first internal sensor of the first pedal travel sensor and receive a second pedal detection signal from a second internal sensor of the second pedal travel sensor, and a second ECU may receive a third pedal detection signal from a third internal sensor of the first pedal travel sensor and receive a fourth pedal detection signal from a fourth internal sensor of the second pedal travel sensor.

A brake system may include an actuating device, in particular a brake pedal; a first piston-cylinder unit having two pistons subjecting the brake circuits to a pressure medium via a valve device, wherein one of the pistons can be actuated by the actuation device; a second piston-cylinder unit having an electric motor drive, a transmission at least one piston to supply at least one of the brake circuits with a pressure medium via a valve device; and a motor pump unit with a valve device to supply the brake circuits with a pressure medium. The brake system may also include a hydraulic travel simulator with a pressure or working chamber which is connected to the first piston-cylinder unit.

According to at least one embodiment, the present disclosure provides an electro-hydraulic brake comprising: a main brake unit configured to provide braking hydraulic pressure to a plurality of wheel cylinders by driving a motor; an auxiliary brake unit connected to the main brake unit to be filled with high-pressure braking hydraulic pressure, and configured to provide braking hydraulic pressure to the plurality of wheel cylinders when an operation error of the main brake unit occurs; a main battery configured to supply power to the main brake unit and the auxiliary brake unit; and an auxiliary battery configured to supply power to the auxiliary brake unit when the main battery fails, wherein the auxiliary brake unit comprises an auxiliary brake control unit that controls charging and discharging of the auxiliary battery, and a power module that monitors a state of the main battery and transmits the state to the auxiliary brake control unit, and a battery management module that monitors a state of charge (SOC) of the auxiliary battery and transmits the state of charge to the auxiliary brake control unit.

The present disclosure relates to an apparatus for improving initial response through electro-mechanical brake (EMB) motor frequency excitation, including a microcontroller including a motor proportional-integral (PI) controller, a gate driver, and an FET inverter, wherein the microcontroller is configured to generate a high frequency signal and a low frequency signal, generate an input dithering signal by combining the high frequency signal and the low frequency signal, transfer the input dithering signal to the motor PI controller, and transfer an output signal of the motor PI controller to the inverter circuit, and the motor is controlled based on an output signal from the inverter circuit.

A brake system of a vehicle, a vehicle, and a control method for a brake system are provided. In the brake system, a first control valve is used to connect a first brake pipe and a second brake pipe, so that when the first control valve is in a connected state, the first brake pipe is connected to the second brake pipe, and brake fluid in the two brake pipes can flow in the two brake pipes, thereby helping improve redundancy performance of the brake system.

A torque command calculation unit calculates a torque command value for a motor based on a required braking force commanded from an external source. A relationship between a motor torque and braking forces generated in the electric brakes has a hysteresis characteristic. When the torque increases, the braking force increases along a positive efficiency line, and when the torque decreases, the braking force decreases along an inverse efficiency line. A specific controller calculates a torque command value to bring an actual load closer to a load command value or to bring an actual position closer to a position command value. A control adjuster adjusts a parameter of a control calculation of the specific controller, or a parameter of a control calculation on an input side or on output side of the specific controller during increase operation, during decrease operation, or during transition between the increase operation and the decrease operation.

An apparatus can comprise a memory and a processing element. The processing element can receive braking data of an vehicle and generate audible braking information based on the braking data. The apparatus can further include a speaker coupled to the processing element. The speaker coupled to the processing element can provide the audible braking information.

A vehicle brake system, includes a brake fluid control assembly and a brake master cylinder assembly. The brake fluid control assembly a manifold block, and a pressure buildup device mounted at the manifold block. The brake master cylinder assembly is in communication with the manifold block. The brake master cylinder assembly and the pressure buildup device drive brake fluid to be output via the manifold block. A central axis of the brake master cylinder assembly is non-perpendicular to a first axis along a movement direction of a piston of the pressure buildup device.

When it is determined that there is a possibility that an object collides with the vehicle from behind while the vehicle is stopped, collision-corresponding braking control is performed to apply a braking force necessary for suppressing the forward movement of the vehicle due to the collision of the object to the vehicle. During the collision response braking control, it is determined whether or not a backward acceleration caused in the vehicle by the collision of the object has occurred, and in the collision response braking control, when the depression operation of the accelerator pedal is performed while the backward acceleration is occurring, the collision response braking control is continued and the depression operation of the accelerator pedal is not performed.