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. 12, 2006
Filed:
Nov. 18, 2005
Steve L. Melby, Howell, MI (US);
Andrew D. Herman, Linden, MI (US);
Kenneth M. Simpson, Swartz Creek, MI (US);
David Allen Dues, Howell, MI (US);
Hallett D. Breidenbach, West Bloomfield, MI (US);
Steve L. Melby, Howell, MI (US);
Andrew D. Herman, Linden, MI (US);
Kenneth M. Simpson, Swartz Creek, MI (US);
David Allen Dues, Howell, MI (US);
Hallett D. Breidenbach, West Bloomfield, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A default value of transmission output speed in a motor vehicle powertrain having an automatic-shift multi-gear ratio power transmission is continuously updated based on a measured value of the output speed and other reliable speed data including transmission input speed and vehicle speed. The default value is substituted for the measured output speed when a malfunction of the output speed sensor is detected, and transitions back to the measured output speed when the output speed sensor malfunction is no longer present.