Abstract: A vehicle brake system having electronic pressure regulation and a related method, in which the system stabilizes a vehicle, supports the actuation of the brake system, and/or enables a fully/partly automated driving operation. The system has a primary actuator system that sets/regulates different brake pressures at the wheel brakes, and an electronically controllable secondary actuator system that secures the vehicle brake system against primary actuator failure. For a primary actuator error, the secondary actuator is controlled so that the secondary system produces a brake pressure that, based on the dynamic axle load displacement, occurring during a braking process, in the direction of a front axle, is greater than the brake pressure that is convertable into a rear axle wheel brake braking power. A device reduces this brake pressure at the rear axle wheel brake to a value at which the vehicle wheel, assigned to this wheel brake, does not lock.

Abstract: A method is described for operating a vehicle, including the following steps: determining a respective traction of the vehicle wheels; determining which of the respective tractions of the vehicle wheels per axle of the vehicle is the highest traction; determining which of the respective highest tractions per axle is the lowest traction; controlling a admission pressure-generating device as a function of the determined lowest traction of the respective highest tractions per axle such that the admission pressure-generating device regulates a brake pressure in a single-channel brake circuit for the vehicle wheels as a function of the determined lowest traction such that the vehicle is decelerated according to the regulated brake pressure. Also described are a corresponding device, a corresponding system, and a computer program product.

Abstract: A method for operating a braking system of a vehicle having at least one brake-able wheel, a braking force variable, which represents a braking force, of a braking device associated with the wheel being increased during a braking operation until a locking tendency of the wheel is recognized, and then reduced to a certain value. It is provided that the braking force variable is subsequently set to a setpoint braking force variable, which corresponds to a selectable portion of the braking force variable present at the recognition of the locking tendency, for a certain time period. Also described is a control unit for implementing the method.

Abstract: A brake system, and a method for operating a brake system of a vehicle. To reduce a braking force, brake fluid is able to be discharged from the braking device via a cross-section adjusting member which connects a delivery device to the braking device, in a controlled and/or regulated manner, into an intermediate reservoir and is delivered to the main brake cylinder using the delivery device. The discharge of the brake fluid from the braking device of the brake system takes place, at least at times, at a discharge volume flow that is greater than the maximum delivery volume flow of the delivery device, and when a certain operating state of the braking system occurs, the discharge volume flow is reduced.

Abstract: A brake system, and a method for operating a brake system of a vehicle. To reduce a braking force, brake fluid is able to be discharged from the braking device via a cross-section adjusting member which connects a delivery deice to the braking device, in a controlled and/or regulated manner, into an intermediate reservoir and is delivered to the main brake cylinder using the delivery device. The discharge of the brake fluid from the braking device of the brake system takes place, at least at times, at a discharge volume flow that is greater than the maximum delivery volume flow of the delivery device, and when a certain operating state of the braking system occurs, the discharge volume flow is reduced.

Abstract: A method for operating a braking system of a vehicle having at least one brake-able wheel, a braking force variable, which represents a braking force, of a braking device associated with the wheel being increased during a braking operation until a locking tendency of the wheel is recognized, and then reduced to a certain value. It is provided that the braking force variable is subsequently set to a setpoint braking force variable, which corresponds to a selectable portion of the braking force variable present at the recognition of the locking tendency, for a certain time period. Also described is a control unit for implementing the method.

Abstract: A method for braking two vehicle wheels of one axle, in which the value of the brake pressure in the wheel-brake cylinder allocated to the first wheel is linked with the value of the brake pressure in the wheel-brake cylinder allocated to the second wheel. The essence of the invention is that the linkage is given via the hydraulic pressure differentials dropping at the respective intake valves.

Abstract: A method and a device for controlling at least one valve of a brake circuit using an electrical control variable, in which a characteristic curve which characterizes the relationship between the pressure drop across the valve and the electrical control variable has at least one region in which a change in the electrical variable results in a change in the pressure drop; and a starting value for the electrical control variable is selected during actuation of the valve such that the starting value is in this region or at the boundary of this region.

Abstract: A method and a device for controlling at least one valve of a brake circuit using an electrical control variable, in which

Abstract: The invention relates to a method and device for controlling braking force distribution in a motor vehicle. In the case of failure of the braking system, the braking force distribution regulator enters emergency mode. The regulation is activated when the speed and the deceleration of the vehicle exceed given minimum values. The invention also concerns emergency measures for regulating the braking force distribution in the case of the certain individual errors.

Abstract: For the distribution of the braking force between the front and rear axles, pressure is released in the rear-axle brakes when a predefined speed difference between a front wheel and a rear wheel is exceeded.

Abstract: In a method and device for identifying a pressure variable, in particular in a brake system, the pressure difference is estimated on the basis of a pressure gradient and the actuation duration of a solenoid valve.

Abstract: Wheel speeds on each side of the vehicle are added, and the sums are subtracted to form a difference VXU which is time filtered to produce a filtered difference VXG. As long as VXU does not exceed VXG by more than a speed dependent threshold, a signal indicating straight line travel is produced. This signal can be cancelled when VXG exceeds a vehicle dependent threshold and is also blocked when the vehicle speed falls below a minimum, when the ABS is operating, or when the vehicle is decelerating. The signal indicating straight line travel accounts for tire tolerance and can be used to control vehicle dynamics, for example by preventing an increase in brake pressure or engine braking when the vehicle is travelling in a curve.

Abstract: A vehicle brake system is described in which a lower brake pressure is fed in at the rear axle compared with the brake pressure of the front wheels. For the purpose of feeding in this brake pressure, the difference VD between the fastest front wheel speed and the slowest rear wheel speed is formed and compared with a threshold value which depends on the vehicle deceleration. An increase in pressure is undertaken until the threshold value is reached. The threshold value is, furthermore, larger in the case of travel in a straight line than it is in the case of travel in a curve.