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:
Sep. 02, 2008
Filed:
Jul. 17, 2002
Wilhelm Härdtle, Markdorf, DE;
Manfred Schwab, Pasau, DE;
Wilhelm Härdtle, Markdorf, DE;
Manfred Schwab, Pasau, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
An apparatus and a process for the prevention of the rollback of a vehicle with a vehicle braking system (), wherein a braking system () comprises a vehicle brake pressure modifying apparatus (); a device () which are enabled to recognize a forward movement of the vehicle, and a brake control apparatus (), which is connected to the vehicle brake pressure modifying apparatus () and the device (). There is generated in the control apparatus () a signal which, upon a standstill of the vehicle, activates a brake and sensor combination () which acts upon a transmission () of the vehicle, the brake and the sensor combination () being supplementary to the brakes of the vehicle brake system () and, upon a recognition of a forward motion of the vehicle, the braking fluid pressure in the vehicle brake pressure modifying apparatus () is reduced and thus the brake and the sensor combination () acting upon the transmission is released.