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Engine engagement control for a hybrid electric vehicle

  • US 6,842,673 B2
  • Filed: 06/05/2002
  • Issued: 01/11/2005
  • Est. Priority Date: 06/05/2002
  • Status: Expired due to Fees
First Claim
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1. A method for minimizing driveling vibrations during engine engagement in a hybrid electric vehicle of the type having a parallel system driveline including an electric motor and a combustion engine, the method comprising:

  • determining the acceleration of the vehicle'"'"'s driveline;

    creating a signal representing the driveline acceleration;

    filtering the driveline acceleration signal to filter out high frequency noise in the signal;

    determining a feedback control term from the filtered driveline acceleration signal; and

    utilizing a feedback control term to control an output torque of the electric motor to minimize driveline vibrations.

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