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APPARATUS AND METHOD FOR CONTROLLING ENGINE STOP OF HYBRID ELECTRIC VEHICLE

  • US 20160288782A1
  • Filed: 11/02/2015
  • Published: 10/06/2016
  • Est. Priority Date: 03/30/2015
  • Status: Active Grant
First Claim
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1. An apparatus for controlling an engine stop of a hybrid vehicle, the apparatus comprising:

  • an engine that provides output to the hybrid vehicle;

    a hybrid starter generator configured to absorb engine torque;

    a battery connected to the hybrid starter generator; and

    a control unit for controlling whether the engine is driven, and the torque generation of the hybrid starter generator,wherein the control unit executes a negative torque command of the hybrid starter generator to stop the engine by absorbing the engine torque, and the control unit sets a profile so that a magnitude of an instantaneous charging energy becomes maximum in view of a hybrid starter generator efficiency and an efficiency of the battery depending on an engine RPM, and provides the torque of the hybrid starter generator depending on the profile.

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