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Method and system for determining the torque required to launch a vehicle having a hybrid drive-train

United States Patent

7,021,410
April 4, 2006
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A method and system are provided for determining the torque required to launch a vehicle having a hybrid drive-train that includes at least two independently operable prime movers. The method includes the steps of determining the value of at least one control parameter indicative of a vehicle operating condition, determining the torque required to launch the vehicle from the at least one determined control parameter, comparing the torque available from the prime movers to the torque required to launch the vehicle, and controlling operation of the prime movers to launch the vehicle in response to the comparing step. The system of the present invention includes a control unit configured to perform the steps of the method outlined above.
Hughes; Douglas A. (Wixom, MI)
Eaton Corporation (Cleveland, OH)
10/ 306,499
November 27, 2002
This invention was made with Government support under NREL Subcontract No. ZCL-2-32060-01, Prime Contract DE-AC36-99GO10337 awarded by the Department of Energy. The government has certain rights in this invention.