Braking system for motor vehicles

US8449047B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Stefan Drumm · Saulheim, DE
• Lothar Schiel · Hofheim, DE

Key dates

• Filing date: Mar 19, 2008
• Grant date: May 28, 2013
• Expiry date: Sep 20, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T8/4077
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A brake system with a master cylinder, a first piston which is coupled to a brake pedal via a push rod transmitting actuating forces, a second piston which can be actuated by the first piston and which can be brought into force-transmitting connection to a third piston, via which the master cylinder is actuated, at least one elastic element which forms a pedal travel simulator which, in the “brake-by-wire” operating mode, gives the vehicle driver a pleasant pedal sensation, an interspace capable of being acted upon with hydraulic pressure, between the second and the third piston, the action of pressure upon the interspace loading the second and the third piston in opposite directions, a pressure supply device which has a high-pressure source and which allows both a filling of the interspace with pressure medium and emptying thereof, and a valve device for varying pressure fed in the interspace.