Brake system for motor vehicles

US8061786B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

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

Key dates

• Filing date: Oct 13, 2005
• Grant date: Nov 22, 2011
• Expiry date: Dec 26, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T7/042
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A brake system has a first piston (2) which is coupled to a brake pedal (3), a second piston (4) used to actuate a master cylinder (1), a third piston (5) actuated by the first piston (2) and movable into a force-transmitting connection with the second piston (4), and a pedal travel simulator. The first and the third pistons are coupled depending on the displacement of the third piston (5). The pressurization of a space (11) between the second and the third piston loads the second and third pistons (4, 5) in opposite directions. A pressure-supplying module (13) enables both filling and evacuation of the space (11) as well as its evacuation. A fourth piston (8) between the first piston (2) and the third piston (5) delimits a hydraulic compartment (9) in interaction with the third piston (5). A valve assembly (10) varies the pressure introduced into the space (11).