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. 03, 2014
Filed:
May. 30, 2008
Kenneth L. Oblizajek, Troy, MI (US);
John D. Sopoci, Commerce Township, MI (US);
R. Larry Arbanas, Farmington Hills, MI (US);
Lin Wang, Troy, MI (US);
Kenneth L. Oblizajek, Troy, MI (US);
John D. Sopoci, Commerce Township, MI (US);
R. Larry Arbanas, Farmington Hills, MI (US);
Lin Wang, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
The system and method described herein can be used to reduce the effects of periodic vibrations in an electric power steering (EPS) system for a vehicle, particularly, those that can lead to smooth road shake (SRS), torsional nibble, and/or other undesirable conditions. According to an exemplary embodiment, an electric motor is used to purposely generate counter-acting vibrations in the EPS system to cancel out the periodic vibrations generated by the wheel assemblies or corners.