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Systems and methods for improving energy efficiency of a vehicle based on route prediction

  • US 9,702,718 B2
  • Filed: 05/08/2015
  • Issued: 07/11/2017
  • Est. Priority Date: 05/08/2015
  • Status: Active Grant
First Claim
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1. A hybrid vehicle, comprising:

  • wheels;

    an engine for providing a first amount of power for at least one of a movement of the wheels or an operation of the hybrid vehicle;

    a battery having a state of charge and storing electrical energy;

    a motor configured to utilize the electrical energy from the battery and for providing a second amount of power for at least one of the movement of the wheels or the operation of the hybrid vehicle;

    a memory for storing route data, a charging limitation event that indicates when the state of charge of the battery is greater than or equal to a maximum threshold value where the battery is unable to accept an additional charge for capture, and a duration and a distance where the state of charge is at or above the maximum threshold value and the additional charge is available; and

    an electronic control unit coupled to at least the engine, the motor, and the memory, the electronic control unit configured to;

    predict that the hybrid vehicle will travel on a second route after travelling on a first route based on the route data,predict that the state of charge of the battery will be greater than or equal to the maximum threshold value during the second route based on the charging limitation event,determine a target value for the state of charge of the battery for the first route that is less than the maximum threshold value based on the stored duration and the stored distance where the state of charge was at or above the maximum threshold value and the additional charge was available, anddischarge the electrical energy stored in the battery during at least a portion of the first route to decrease the state of charge of the battery to the target value or less by powering the movement of the wheels using the motor to allow the battery to capture the additional charge when the hybrid vehicle travels the second route.

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