Patents by Inventor Aaron C. Heckel

Aaron C. Heckel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Transmission cold start burst rattle reduction
    Patent number: 7207921
    Abstract: A vehicle having an engine that drives a transmission includes a pump that provides fluid to the transmission and a temperature sensor that monitors a temperature of the fluid. The temperature sensor generates a temperature signal. A control module receives the temperature signal and operates the pump to provide the fluid at a first pressure when the temperature signal is below an upper temperature limit. The control module operates the pump to provide the fluid at a second pressure when the temperature signal is above the upper temperature limit.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: April 24, 2007
    Assignee: General Motors Corporation
    Inventors: Aaron C. Heckel, Thomas M. Sherman