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:
Mar. 15, 2011
Filed:
Dec. 01, 2006
William R. Cawthorne, Milford, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
William R. Cawthorne, Milford, MI (US);
Anthony H. Heap, Ann Arbor, MI (US);
Gregory A. Hubbard, Brighton, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
A preferred input torque for a hybrid powertrain is determined within a solution space of feasible input torques in accordance with a plurality of powertrain system constraints that results in a minimum overall powertrain system loss. System power losses and battery utilization costs are calculated at feasible input torques and a solution for the input torque corresponding to the minimum total powertrain system loss is converged upon to determine the preferred input torque.