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. 18, 2012
Filed:
Sep. 23, 2009
Kenneth L. Oblizajek, Troy, MI (US);
Derek K. Hogland, Brighton, MI (US);
John D. Sopoci, Commerce Township, MI (US);
Wen-hou MA, Novi, MI (US);
Kenneth L. Oblizajek, Troy, MI (US);
Derek K. Hogland, Brighton, MI (US);
John D. Sopoci, Commerce Township, MI (US);
Wen-Hou Ma, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method to reduce vehicular sensitivity to torsional smooth road shake (SRS) at the steering wheel provided by selectively increasing reverse driven-impedance of the steering system via an effective dynamic tuned vibration absorber comprising the existing power steering motor inertia supported on the torsional stiffness of the gearing to the rack in the case of a REPS system, or of the column rotary shaft in the case of a CEPS system.