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:
Dec. 03, 2013
Filed:
May. 20, 2011
Chunhao J. Lee, Troy, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Xu Chen, Ann Arbor, MI (US);
Paul G Otanez, Troy, MI (US);
Xuefeng Tim Tao, Northville, MI (US);
Farzad Samie, Franklin, MI (US);
Chunhao J. Lee, Troy, MI (US);
Kumaraswamy V. Hebbale, Troy, MI (US);
Xu Chen, Ann Arbor, MI (US);
Paul G Otanez, Troy, MI (US);
Xuefeng Tim Tao, Northville, MI (US);
Farzad Samie, Franklin, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method for controlling actuation of a torque converter clutch includes monitoring a transmission input speed, comparing the monitored transmission input speed to a threshold input speed, and, when the transmission input speed is less than the threshold input speed, controlling an engine speed based upon a desired minimum engine speed. Controlling the engine speed based upon the desired minimum engine speed includes monitoring a minimum engine speed critical parameter, determining the desired minimum engine speed based upon the minimum engine speed critical parameter, comparing the engine speed to the desired minimum engine speed, and controlling actuation of the clutch device based upon a result of the comparing the engine speed to the desired minimum engine speed.