Disclosed herein is a hydraulic unit of a brake system. The hydraulic unit in accordance with the present embodiment may include a hydraulic block including a cylinder bore provided with a master cylinder connected to a brake pedal, a motor bore provided with a motor that generates hydraulic pressure by operating by an electrical signal output corresponding to displacement of the brake pedal, a hydraulic flow path, and a valve bore provided with a valve that controls a flow of a pressurized medium through the hydraulic flow path and an electronic control unit configured to control operation of the motor and the valve based on information on the displacement of the brake pedal.

A brake system for automobile includes: a first brake device provided on two wheels of the automobile, respectively, to perform a braking operation by either transmitted hydraulic pressure or a first electro-mechanical actuator built thereinto; a second brake device provided on other two wheels of the automobile, respectively, to perform the braking operation by a second electro-mechanical actuator built thereinto; a reservoir in which a pressurized medium is stored; a master cylinder device connected to the reservoir and generating the hydraulic pressure corresponding to a displacement of a brake pedal; a hydraulic circuit controlling the hydraulic pressure transmitted from the master cylinder device to the first brake device; and an electronic control unit controlling the first electro-mechanical actuator, the second electro-mechanical actuator and the hydraulic circuit, respectively, so that the first brake device and the second brake device generate braking force in response to the displacement of the brake pedal.

A brake system for a vehicle include first brake devices respectively provided in two vehicle wheels of a vehicle and configured to perform a braking operation by transmitted liquid pressure, second brake devices respectively provided in the other two vehicle wheels of the vehicle and configured to perform a braking operation by an embedded second electromechanical actuator, a reservoir, a master cylinder including a master chamber, and a master piston provided in the master chamber, a hydraulic actuator configured to generate the liquid pressure by an electrical signal outputted in response to a displacement amount of the brake pedal, a hydraulic circuit configured to control the liquid pressure to be transmitted to the first brake device, and an electronic control unit configured to control the first electromechanical actuator, the hydraulic actuator, and the hydraulic circuit so that the first brake device and the second brake device generate braking forces.

A brake system may include an actuation device that may actuate a first piston-cylinder unit to apply pressure medium to at least one brake circuit via a valve device, where a piston of the first piston-cylinder unit separate first and second working chambers; a second piston-cylinder unit, having an electromotive drive and a transmission to feed pressure medium to at least one of the brake circuits via a valve device; and a motor-pump unit having a valve device to feed pressure medium to the brake circuits. The motor of the electromotive drive of the second piston-cylinder unit and the motor of the motor-pump unit may be used jointly or independently of one another, under control of a control device. The motor-pump unit is connected via two hydraulic connections, one or both of which may incorporate separating valves, to the first and second working chambers of the first piston-cylinder unit.

The brake device may comprise: a hydraulic pressure supply unit fluidically connected to wheel cylinders of a vehicle; a parking brake arranged at at least one of the wheel cylinders; a first processor electrically connected to the hydraulic pressure supply unit and the parking brake; and a second processor electrically connected to the parking brake, and electrically connected to the first processor through a signal line. The first processor can control the hydraulic pressure supply unit on the basis of output signals of a pedal sensor of the vehicle, control the parking brake on the basis of output signals of a parking switch of the vehicle, and provide periodic signals to the second processor through the signal line. The second processor can control the parking brake on the basis of the output signals of the pedal sensor if the periodic signals of the first processor are not received.

The disclosure relates to a method for controlling a vehicle braking system on the basis of vehicle-specific data, wherein the vehicle braking system comprises individually actuatable brakes. In the method, a braking operation is detected, a status condition is queried during a temporal observation window, and a yaw variable present and a physical characterizing variable present at the same time are detected. Subsequently, the detected yaw variable is stored and the yaw variable is assigned to a data set. This is repeated in order to create a database. Further, a corrective braking force is determined and the braking force of a brake is automatically adjusted depending on the corrective braking force to reduce the yaw variable. The disclosure also relates to an apparatus for compensating a yaw moment acting on a vehicle.

A vehicle pedal resistance and dampener assembly includes a dampener module defining an interior fluid-filled cavity and adapted for generating a dampening force on the vehicle pedal. A pedal resistance module generates a resistance force on the vehicle pedal. The dampener module and the resistance module are moveable relative to each other. A shaft in the dampener module extends into and is moveable in a fluid-filled sleeve in the resistance module. A pedal position sensor senses and measures the position of the vehicle pedal. A pedal force sensor senses and measures the force on the vehicle pedal. A first resistance spring is located in the sleeve of the pedal resistance module, a second resistance spring surrounds the sleeve of the pedal resistance module, a third resistance spring surrounds the shaft of the dampener module, and a fourth resistance spring surrounds the third resistance spring.

A brake system may include an actuation device that may actuate a first piston-cylinder unit to apply pressure medium to at least one brake circuit via a valve device, where a piston of the first piston-cylinder unit separate first and second working chambers; a second piston-cylinder unit, having an electromotive drive and a transmission to feed pressure medium to at least one of the brake circuits via a valve device; and a motor-pump unit having a valve device to feed pressure medium to the brake circuits. The motor of the electromotive drive of the second piston-cylinder unit and the motor of the motor-pump unit may be used jointly or independently of one another, under control of a control device. The motor-pump unit is connected via two hydraulic connections, one or both of which may incorporate separating valves, to the first and second working chambers of the first piston-cylinder unit.

A control unit (130, 140, 300) for controlling a heavy duty vehicle (100), wherein the control unit is arranged to obtain an acceleration profile (a.sub.req) and a curvature profile (c.sub.req) indicative of a desired maneuver by the vehicle (100), the control unit (130, 140, 300) comprising a force generation module (310) configured to determine a set of global vehicle forces and moments required to execute the desired maneuver, the control unit (130, 140, 300) further comprising a motion support device, MSD, coordination module (320) arranged to coordinate one or more MSDs to collectively provide the global vehicle forces and moments by generating one or more respective wheel forces, and an inverse tyre model (330) configured to map the one or more wheel forces into equivalent wheel slips (), wherein the control unit (130, 140, 300) is arranged to request the wheel slips () from the MSDs.

A method for optimizing the meterability of brake force in an ABS braking with a brake-by-wire brake system. The method includes various steps. First, a driver brake request is sensed by a pedal force simulator. In addition, a trigger point (A) of an ABS braking is recognized. In the case of a recognized ABS braking, there is a correction of the sensed driver brake request such that, upon recognizing the trigger point (A) during a reduction of the sensed driver brake request, the corrected driver brake request is reduced to the extent that ABS braking is no longer present. The corrected driver brake request is subsequently implemented by building up a corresponding brake pressure in a brake device of the brake system.