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Hybrid transmission launch algorithm

  • US 7,243,011 B2
  • Filed: 05/21/2004
  • Issued: 07/10/2007
  • Est. Priority Date: 05/21/2004
  • Status: Expired due to Term
First Claim
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1. A launch system for a hybrid vehicle, comprising:

  • a pump that is driven by an internal combustion engine and that provides pressurized fluid to a transmission;

    an electronic throttle that selectively adjusts airflow to said internal combustion engine;

    an electric motor that drives the internal combustion engine during a vehicle launch;

    a sensor that detects when a brake pedal has been released; and

    a hybrid control module that controls said electronic throttle to increase pressure of said pressurized fluid and to inhibit torque transfer to said transmission when said sensor detects that said brake pedal has been released until one of a predetermined pressure and time condition has been met.

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