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:
Oct. 05, 2010
Filed:
Dec. 20, 2006
Gerd Bitz, Mainz, DE;
Gerd Bitz, Mainz, DE;
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
The present invention makes an improved braking system available. This comprises a brake pedal and/or a servo unit and also incorporates a hydraulic unit including an integrated electronic controller (for short: EBS) and a hydraulically actuated wheel brake associated with each wheel. Hereby, the wheel brakes are connected hydraulically to the electronic hydraulic unit as is also the brake pedal/servo unit. A brake cylinder for the wheel brake is arranged to be prefilled by means of a 'prefill' function in order to at least partly reduce the clearance gap. For the first time hereby, the braking system is provided with a switching device by means of which the 'prefill' function is arranged to be switched on or off in dependence on a selectable operating mode. Moreover, the invention proposes a method for electronically regulating the brakes utilizing such a braking system.