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:
Nov. 23, 2004
Filed:
Jul. 17, 2002
Ratko Menjak, Frankenmuth, MI (US);
James M. Card, Saginaw, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A hand wheel actuator for a steer-by-wire steering system having a steering feel that meets drivers' expectations is provided with a housing having an aperture, a steering shaft extending through the aperture and rotatably supported by the housing, an electric motor, a position sensor and torque sensor, and a mechanical steering feel enhancement device. The mechanical steering feel enhancement device is attached to the housing and provides a positive stop function, a return-to-center function, and/or a friction/weight function. The mechanical steering feel enhancement device is in mechanical communication with the steering shaft and may exist as a separate unitary subassembly prior to being installed on the housing. The electric motor has an output shaft that is in mechanical communication with the steering shaft for imparting a torque to the steering shaft.