Patent ID: 8840198
Filing Date: 2014-09-23
Classification: B60T

Abstract:
1. A method, comprising: operating a hydraulic vehicle brake system which has an anti-lock control device and a master brake cylinder with a controllable brake booster, at least one wheel brake, which is connected to the master brake cylinder via a brake pressure-increasing valve, and a brake pressure-decreasing valve by which a wheel brake pressure of the at least one wheel brake is configured to be decreased, the anti-lock control device having a hydraulic pump whose suction side is connected to the brake pressure-decreasing valve and whose pressure side is connected between the brake pressure-increasing valve and the master brake cylinder; during an anti-lock control operation, reducing an extraneous force of the brake booster to a first force, which is less than a second force at which the brake booster is operated during a non-anti-lock control operation; and increasing the extraneous force of the brake booster from the first force to a third force, which is less than the second force, as a function of a pressure difference between the pressure side and the suction side of the hydraulic pump, upon operation of the hydraulic pump during the anti-lock control operation.