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:
Jun. 25, 2002
Filed:
Aug. 09, 2000
Applicant:
Inventors:
Leonard F. Bishop, Sterling Hts., MI (US);
Shawn P. Cap'ser, Monroe, MI (US);
John D. Dalpiaz, New Boston, MI (US);
Assignee:
Visteon Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D 5/08 ;
U.S. Cl.
CPC ...
B62D 5/08 ;
Abstract
A variable displacement pump having an electronically modulated solenoid relief valve for controlling fluid flow into the pump . An engine control module coupled to the electronic relief valve monitors vehicle speed and steering wheel turning rate change directs the solenoid relief valve to adjust the pressure of fluid displacing a movable cam ring within the pump to provide for greater fluid flow when evasive maneuvers may be required and lesser fluid flow when low steering efforts are needed, thus resulting in energy and fuel savings.