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HYBRID VEHICLE

  • US 20160264124A1
  • Filed: 03/08/2016
  • Published: 09/15/2016
  • Est. Priority Date: 03/09/2015
  • Status: Active Grant
First Claim
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1. A hybrid vehicle able to be charged by using electric power from a power supply on the outside of the hybrid vehicle, the hybrid vehicle comprising:

  • an internal combustion engine;

    an electrical storage device;

    a motor mechanically coupled to a drive wheel, the motor configured to generate travel drive power by receiving the electric power from the electrical storage device;

    an electric power generator mechanically coupled to the internal combustion engine, the electric power generator configured to generate electric power to be charged to the electrical storage device by using power of the internal combustion engine;

    a charging mechanism configured to charge the electrical storage device by using electric power from the power supply on the outside of the hybrid vehicle; and

    an electronic control unit configured to switch between an EV travel and an HV travel in accordance with a travel situation of the hybrid vehicle, the electronic control unit being configured to stop the internal combustion engine and cause the hybrid vehicle to travel by output of the motor in the EV travel, the electronic control unit configured to cause the hybrid vehicle to travel by actuating the internal combustion engine in the HV travel, and the electronic control unit configured to;

    set a target value of a charging amount of the electrical storage device , the target value being a target value at a time when the hybrid vehicle passes an exit of a freeway in a case where a travel route to a destination includes the freeway and an open road from the exit of the freeway to the destination,execute charging amount recovery control for increasing the charging amount of the electrical storage device to the target value when the hybrid vehicle travels on the freeway,compute a first travel cost and a second travel cost, the first travel cost being cost per unit travel distance of fuel used when the hybrid vehicle travels in the EV travel by using the electric power charged in the electrical storage device at a time when the hybrid vehicle travels on the freeway in the HV travel, the second travel cost being cost per unit travel distance of the electric power used when the hybrid vehicle travels in the EV travel by using the electric power charged in the electrical storage device by the charging mechanism at the destination, andset the target value in the charging amount recovery control on the basis of a comparison result between the first travel cost and the second travel cost.

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