Brake actuation unit for actuating a motor vehicle brake system

US9132815B2 · 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
• Thomas Sellinger · Frankfurt am Main, DE
• Torsten Queisser · Frankfurt, DE
• Lazar Milisic · Frankfurt, DE

Key dates

• Filing date: Aug 3, 2006
• Grant date: Sep 15, 2015
• Expiry date: Sep 8, 2030

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T8/4081
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a brake actuation unit for actuating a ‘brake-by-wire’ type brake system for a motor vehicle. The brake system includes a brake booster operable via a brake pedal mounted on a shaft and via an electronic control unit depending on the driver's request, and an element to decouple a force-transmitting connection between the brake pedal and the brake booster in the ‘brake-by-wire’ operating mode. Also included are a device to detect a deceleration request of the driver, and a pedal travel simulator which interacts with the brake pedal and is formed of a simulator spring, which is arranged in terms of effect between a force-transmitting part connected to the brake pedal and a simulator housing, which is mounted on the shaft by means of two bearings. The simulator housing (22) includes a cylindrical area (26) for the accommodation of the two bearings (27, 28). This measure renders it possible to reduce the deformations that occur during actuation of the pedal travel simulator to a great extent.