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ENGINE START CONTROLLING APPARATUS AND METHOD FOR HYBRID VEHICLE

  • US 20070275818A1
  • Filed: 05/23/2007
  • Published: 11/29/2007
  • Est. Priority Date: 05/24/2006
  • Status: Active Grant
First Claim
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1. A hybrid-vehicle engine start control system, comprising:

  • an engine;

    a motor disposed between the engine and a vehicle driving shaft;

    a first clutch disposed between the engine and the motor, the first clutch operable to engage and disengage the engine; and

    a controller configured to;

    increase a driving torque of the motor in response to a request for an increase in a driving force; and

    start the engine from a disengaged state, including;

    increase a transmission torque capacity of the first clutch at a first velocity in a first engaging phase; and

    change the transmission torque capacity of the first clutch at a second velocity slower than the first velocity in a second engaging phase after the first engaging phase is complete.

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