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HYBRID VEHICLE AND CONTROL METHOD THEREOF

  • US 20110004364A1
  • Filed: 10/16/2008
  • Published: 01/06/2011
  • Est. Priority Date: 02/13/2008
  • Status: Active Grant
First Claim
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1. A hybrid vehicle that includes an internal combustion engine and a motor that are respectively capable of outputting power for driving the vehicle, the hybrid vehicle comprising:

  • an accumulator that is capable of supplying and receiving electric power from the motor, the accumulator configured to be capable of being charged with electric power from a charge source outside of the vehicle;

    a driving force demand setting module configured to set a driving force demand required for driving the vehicle;

    an engine operation point setting module that sets a target operation point of the internal combustion engine to a predetermined operation point that enables the internal combustion engine to be operated efficiently when the internal combustion engine is to be operated while a residual capacity of the accumulator is equal to or more than a predetermined reference residual capacity after a start of a driving of the vehicle, the engine operation point setting module setting the target operation point of the internal combustion engine based on the set driving force demand when the internal combustion engine is to be operated after the residual capacity of the accumulator once becomes less than the reference residual capacity after the start of the driving of the vehicle; and

    a control module configured to control the internal combustion engine and the motor so that the internal combustion engine is operated at the set target operation point and a driving power equivalent to the set driving force demand is ensured.

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