Method for operating a vehicle brake system

US10875514B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Andreas Neu · Frankfurt am Main, DE
• Michael Hitzel · Rödermark, DE
• Michael Jung · Frankfurt am Main, DE
• Tobias Scheller · Hofbieber, DE

Key dates

• Filing date: Aug 1, 2017
• Grant date: Dec 29, 2020
• Expiry date: Aug 9, 2037

Classification

• Technology area (CPC —): General

Abstract

A method for operating a dual-circuit hydraulic brake system of a vehicle having an ABS function to feed back pressure medium from low-pressure reservoirs. When there is an autonomous pressure buildup request to increase brake pressure and an ABS control system is simultaneously activated, the following steps are carried out: monitoring the filling degree of the low-pressure reservoirs; emptying the low-pressure reservoir whose filling first reaches a defined threshold value; and if, during the execution of the low-pressure reservoir emptying process at the one low-pressure reservoir, the filling of the other low-pressure reservoir reaches the threshold value and the degree of emptying of the one low-pressure reservoir undershoots a defined threshold value, or the filling of the other low-pressure reservoir exceeds the threshold value by k/100, interrupting the low-pressure reservoir emptying process at the one low-pressure reservoir, and carrying out a low-pressure reservoir emptying process at the other low-pressure reservoir.