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. 23, 2003
Filed:
Jul. 01, 2002
Guenter Wolff, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An actuating unit ( ) for a wheel brake ( ) of a motor vehicle has a hydraulic pump ( ), which can be driven at variable speeds by an electric motor ( ) and supplies pressure fluid from a storage tank ( ), and has an element ( ), which adjusts a return flow of pressure fluid to the pump ( ) and is disposed between the pressure side ( ) and the suction side ( ) of the pump ( ). In addition, a cylinder-piston unit ( ) is provided, which is for pressing a brake lining ( ) against a friction element ( ) connected to a vehicle wheel. For purposes of controlling the brake pressure as a function of wheel slip, a pressure increase valve ( ) and a pressure decrease valve ( ) are disposed between the pump ( ) and the cylinder-piston unit ( ). In addition, a control unit ( ) is provided, which can process electrical brake request signals and slip signals and can control the electric motor ( ), the element ( ), and the valves ( ).