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. 28, 1998
Filed:
Jun. 13, 1997
Applicant:
Inventors:
Wolfgang Kress, Stuttgart, DE;
Uwe Kooths, Sindelfingen, DE;
Assignee:
Mercedes-Benz AG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B62D / ; H02P / ;
U.S. Cl.
CPC ...
318268 ; 180-63 ; 180422 ; 180428 ; 318474 ;
Abstract
A hydraulic servo control, particularly a hydraulic power steering system for motor vehicles, has hydraulic pressure pump which is driven by an electric motor. The rotational speed of the electric motor is controlled as a function of the load, so that a high rotational speed occurs only when there is a corresponding demand.