Method for operating a brake system for motor vehicles, and brake system

US10800388B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Marco Besier · Ramschied, DE
• Georg Roll · Heusenstamm, DE
• Sascha Gröger · Kelkheim, DE
• Andreas Neu · Frankfurt am Main, DE
• Cristiano Hoffmann · Maintal, DE

Key dates

• Filing date: Feb 20, 2017
• Grant date: Oct 13, 2020
• Expiry date: May 23, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T8/4872
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for operating a motor vehicle brake installation. An electrically controllable pressure modulation device having a pump-valve arrangement is hydraulically arranged between the primary brake system and the front axle brakes. The pump-valve arrangement includes, for each front brake, a first valve, arranged between the inlet valve of the primary brake system and the brake, and an electrically activatable pump, with a suction and pressures ports. The pressure port is connected to the brake. In the presence of a predetermined condition of the primary brake system and of an actuation of the master brake cylinder by the driver, a build-up of brake pressure at the front axle brakes is performed by the pump-valve arrangement. The pressure set by the pump-valve arrangement is higher than the brake pressure in the master brake cylinder, whereas the brake pressure of the master brake cylinder prevails at the brakes of the rear axle.