METHOD FOR OPERATING A BRAKE SYSTEM, BRAKE SYSTEM IN WHICH THE METHOD IS PERFORMED, AND USES OF THE BRAKE SYSTEM

摘要

A method for operating a motor vehicle brake system, the brake system including an electrically controllable pressure-providing device, including a cylinder/piston assembly having a hydraulic pressure chamber and a piston that can be moved by an electromechanical actuator, a number of hydraulic wheel brakes associated with two axles of the vehicle can be supplied with braking pressure via the hydraulic pressure chamber, and a sensor for detecting the driver braking request. An electric drive having at least one electrical machine, which can also be operated as a generator, is associated with at least one axle of the vehicle, and, during regeneration braking, in which a generator deceleration is built up by the electric drive, the cylinder-piston assembly is controlled such that the pressure in the hydraulic pressure chamber is adjusted in accordance with the difference between the requested braking deceleration and the generator deceleration built up by the electric drive.

主权项

1. A method for operating a brake system for motor vehicles having an electrically controllable pressure provision device which comprises a cylinder/piston arrangement having a hydraulic pressure chamber and a piston which can be displaced by an electromechanical actuator, having a number of hydraulic wheel brakes which are associated with two axles of the vehicle and which can be supplied with braking pressure via the hydraulic pressure chamber, and having a sensor for detecting the driver's desired braking action, wherein an electric drive which can also be operated as a generator and which has at least one electrical machine is associated with at least one axle of the motor vehicle and, during recuperative braking, in which a generator deceleration is produced by the electric drive, the cylinder/piston arrangement is controlled in such a manner that the pressure in the hydraulic pressure chamber is adjusted in accordance with the difference between the required braking deceleration and the generator deceleration produced by the electric drive.