The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2013
Filed:
Nov. 28, 2007
Georg Roll, Heusenstamm, DE;
Jochen Leideck, Darmstadt, DE;
Peter Cisarz, Hofheim, DE;
Jens Jaeger, Wiesbanden-erbenheim, DE;
Paul Linhoff, Neu-anspach, DE;
Georg Roll, Heusenstamm, DE;
Jochen Leideck, Darmstadt, DE;
Peter Cisarz, Hofheim, DE;
Jens Jaeger, Wiesbanden-erbenheim, DE;
Paul Linhoff, Neu-anspach, DE;
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.