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Method and apparatus for controlling hybrid powertrain system in response to engine temperature

United States Patent

October 7, 2014
View the Complete Patent at the US Patent & Trademark Office
A method for controlling a hybrid powertrain system including an internal combustion engine includes controlling operation of the hybrid powertrain system in response to a preferred minimum coolant temperature trajectory for the internal combustion engine.
Martini; Ryan D. (Wolverine Lake, MI), Spohn; Brian L. (Holly, MI), Lehmen; Allen J. (Howell, MI), Cerbolles; Teresa L. (Troy, MI)
GM Global Technology Operations LLC (Detroit, MI)
13/ 162,720
June 17, 2011
GOVERNMENT CONTRACT RIGHTS This invention was made with U.S. Government support under Agreement No. DE-FC26-08NT04386 awarded by the U.S. Department of Energy. The U.S. Government may have certain rights in this invention.