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:
Aug. 01, 2006
Filed:
Jul. 29, 2004
Ryan Mcgee, Ann Arbor, MI (US);
Chris Kapolnek, Dearborn, MI (US);
Paul Gartner, Dearborn, MI (US);
Carol Okubo, Belleville, MI (US);
Paul Niessen, Plymouth, MI (US);
Waheed Alashe, Northville, MI (US);
Ryan McGee, Ann Arbor, MI (US);
Chris Kapolnek, Dearborn, MI (US);
Paul Gartner, Dearborn, MI (US);
Carol Okubo, Belleville, MI (US);
Paul Niessen, Plymouth, MI (US);
Waheed Alashe, Northville, MI (US);
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A vehicle and method are provided that determine a misfire torque limit for an engine in the vehicle. The vehicle includes an electric machine operable to provide torque to the engine. The method includes commanding the engine to operate at a predetermined torque and a predetermined speed, thereby putting the engine in an idle state. An output torque of the engine is then determined while the engine is in the idle state. A torque offset, defined as the difference between the torque command and the determined engine output torque, is also determined. The misfire torque limit for the engine is then determined based at least in part on the torque offset.