Break actuating unit for actuating a motor vehicle brake system

US8985714B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Holger von Hayn · Bad Vilbel, DE
• Jürgen Schonlau · Eltville am Rhein, DE
• Manfred Rüffer · Pocking, DE
• Wolfgang Ritter · Düsseldorf, DE
• Holger Kranlich · Karben, DE
• Jose Gonzalez · Bad Oeynhausen, DE
• Thomas Sellinger · Frankfurt am Main, DE
• Milan Klimes · Zornheim, DE
• Torsten Queiβer · Frankfurt, DE
• Michael Haber · Berlin, DE

Key dates

• Filing date: May 2, 2012
• Grant date: Mar 24, 2015
• Expiry date: May 2, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20534
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a brake actuating unit for actuating a motor vehicle brake system of the ‘brake-by-wire’ type. The system includes a brake booster which is operable in response to the driver's wish both by a brake pedal and by an electronic control unit. A device is provided to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode. A master brake cylinder connected downstream of the brake booster, a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and due to which a resetting force acting on the brake pedal can be simulated in the ‘brake-by-wire’ operating mode independently of an actuation of the brake booster, and which can be enabled in the ‘brake-by-wire’ operating mode when the force-transmitting connection between the brake pedal and the brake booster is decoupled and can be disabled outside the ‘brake-by-wire’ operating mode. The pedal travel simulator (2) is enabled and disabled by electromechanical means (22, 25), electrohydraulic means (40, 47) or pneumatically operable means (96 to 98).