Control device and method for operating a braking system of a vehicle equipped with an electric brake booster

摘要

A control device for a braking system of a vehicle equipped with an electric brake booster includes an activating unit which is configured to output, taking into account at least one provided sensor signal regarding a setpoint brake pressure, at least one brake pressure control signal to the electric brake booster in such a way that, if the setpoint brake pressure is below a predefined limiting value, a brake pressure portion effectuated on the booster side is equal to a difference between the setpoint brake pressure and a brake pressure portion effectuated on the driver side, while once the predefined limiting value is exceeded by the setpoint brake pressure, the brake pressure portion effectuated on the booster side remains constant or decreases.

主权项

1. A control device for a braking system of a vehicle equipped with an electric brake booster, the control device comprising:
an activating unit configured to:
establish, taking into account at least one provided sensor signal regarding a setpoint brake pressure requested by a driver of the vehicle for at least one wheel brake cylinder of the braking system, at least a first setpoint variable regarding a brake pressure portion from the booster to be generated in the respective wheel brake cylinder with the aid of the electric brake booster, wherein the brake pressure portion from the booster is in addition to a brake pressure portion from the driver achievable in the respective wheel brake cylinder with the aid of a brake pressure applied by the driver; andoutput to the electric brake booster at least one brake pressure booster control signal which corresponds to the at least one first setpoint variable; wherein the activating unit is configured to establish the at least one first setpoint variable in such a way that,
(i) provided the setpoint brake pressure requested for the at least one wheel brake cylinder is below a predefined limiting value, the brake pressure portion from the booster to be generated in the respective wheel brake cylinder equals a difference between the setpoint brake pressure requested for the respective wheel brake cylinder and the brake pressure portion from the driver in the respective wheel brake cylinder, and(ii) once the predefined limiting value is exceeded by the setpoint brake pressure requested for the at least one wheel brake cylinder, the brake pressure portion from the booster to be generated in the respective wheel brake cylinder one of remains constant or decreases.