Device for determining a driving state and method for the driving-state-dependent operation of a combined vehicle brake system

US8483925B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Georg Roll · Heusenstamm, DE
• Jochen Leideck · Waldkraiburg, DE
• Peter Cisarz · Hofheim, DE
• Jens Jaeger · Erbenheim, DE
• Paul Linhoff · Eppstein, DE

Key dates

• Filing date: Nov 28, 2007
• Grant date: Jul 9, 2013
• Expiry date: Jan 14, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2270/608
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device for determining a driving state of a two-axle motor vehicle, which driving state is formed from the driving situation of the motor vehicle and the state of the underlying surface, wherein output signals from vehicle on-board sensors are evaluated in order to determine the driving situation and wherein a routine for determining and/or estimating the friction value of the underlying surface is provided in order to determine the state of the underlying surface. Also disclosed is a method for operating a combined vehicle brake system, in particular for motor vehicles, having hydraulically actuable wheel brakes at a front axle and having electromechanically actuable wheel brakes at a rear axle, wherein the vehicle wheels assigned to the rear axle can be driven at least at times by an electric motor which can be operated as a generator for the recuperation of braking energy.