Vehicle brake system

US8702179B2 · kind B2 · utility

Assignee

• WABCO GmbH · DE

Inventors

• Peter Beier · Wunstorf, DE
• Henning Förster · Nordstemmen, DE
• Hartmut Rosendahl · Hannover, DE
• Gerhard Bruns · Ballenstedt, DE
• Olaf Jantz · Hannover, DE
• Wolfgang Strache · Hemmingen, DE

Key dates

• Filing date: Dec 23, 2008
• Grant date: Apr 22, 2014
• Expiry date: Apr 19, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T13/58
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A brake system for a vehicle includes brake cylinders operated by pressurized fluid for actuation of brakes by means of pressurized fluid on at least one first axle of the vehicle. The brakes on at least one other, second, axle can be actuated exclusively electromechanically in response to an electrical braking request signal. The pressure of the pressurized fluid can be modulated indirectly or directly and the electrical braking request signal can be generated indirectly or directly in response to actuation of a brake pedal of a brake pedal device. A service brake function is provided by means of hybrid use of the brakes on the first axle(s) together with the brakes on the second axle(s). The brake cylinders operated by pressurized fluid are pneumatically operated brake cylinders. The pressure modulated by the brake pedal device is a pneumatic pressure, and the pressurized fluid is compressed air.