Brake system for motor vehicles

US8424976B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Dieter Dinkel · Eppstein, DE
• Hans-Jörg Feigel · Rosbach, DE

Key dates

• Filing date: Jul 16, 2009
• Grant date: Apr 23, 2013
• Expiry date: Jan 16, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2201/03
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A brake system includes a main brake cylinder and a pedal decoupling unit provided with a holding piston, the first ring surface thereof together with a first primary brake cylinder piston defining a first hydraulic chamber that is hydraulically pressurized with an electrically controllable pressure supply device. In order to improve the pedal characteristics of the brake system, in particular in a brake-by-wire brake system, the holding piston is embodied as a differential piston, the second ring surface thereof defining a second, blockable hydraulic chamber, and a piston effect in the second chamber corresponds to a force that acts counter to the direction of actuation on the holding piston.