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:
Apr. 03, 2012
Filed:
Mar. 27, 2009
Balarama V. Murty, West Bloomfield, MI (US);
Suresh Gopalakrishnan, Farmington Hills, MI (US);
Kenneth J. Shoemaker, Highland, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Bradley Bezzina, Dearborn Heights, MI (US);
Ebrahim Handy, Bloomfield Hills, MI (US);
Balarama V. Murty, West Bloomfield, MI (US);
Suresh Gopalakrishnan, Farmington Hills, MI (US);
Kenneth J. Shoemaker, Highland, MI (US);
Chandra S. Namuduri, Troy, MI (US);
Bradley Bezzina, Dearborn Heights, MI (US);
Ebrahim Handy, Bloomfield Hills, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for determining a speed of a power steering pump used in a power steering assembly of a vehicle that has particular application in a vehicle using a magneto-rheological hydraulic power steering (MRHPS) system for improving the fuel efficiency and ride comfort of the vehicle, and for reliable functioning of the power steering system. The method includes determining an angle of rotation of the steering wheel and a rate of change of the angle of rotation of the steering wheel based on the angle of rotation of the steering wheel of the vehicle. The method further includes determining the speed of the vehicle and the speed of the power steering pump based on the angle of rotation of the steering wheel, the rate of change of the angle of rotation of the steering wheel and the speed of the vehicle.