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:
Jan. 26, 2010
Filed:
Mar. 22, 2007
Joel M. Maguire, Northville, MI (US);
Joseph R. Dulzo, Novi, MI (US);
Thomas E. Bolander, Flint, MI (US);
William C. Albertson, Clinton Township, MI (US);
Joel M. Maguire, Northville, MI (US);
Joseph R. Dulzo, Novi, MI (US);
Thomas E. Bolander, Flint, MI (US);
William C. Albertson, Clinton Township, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An engine control system for controlling a displacement on demand engine having a plurality of cylinders includes a torque converter with a torque converter clutch. A control module determines a slip speed of said torque converter clutch, estimates a temperature state of said torque converter clutch based on said slip speed, and selectively activates at least one of said cylinders based on said temperature state.