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Method and apparatus for controlling plug-in hybrid electric vehicle

  • US 9,527,502 B1
  • Filed: 10/23/2015
  • Issued: 12/27/2016
  • Est. Priority Date: 06/04/2015
  • Status: Active Grant
First Claim
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1. A method for controlling a plug-in hybrid electric vehicle, comprising:

  • setting, by a controller, an initial distance until charge (DUC);

    calculating, by the controller, a current DUC by subtracting a travel distance of the plug-in hybrid electric vehicle from the initial DUC after the initial DUC is set;

    calculating, by the controller, a current distance to empty (DTE) based on a current state of charge (SOC) of a battery;

    comparing, by the controller, the current SOC of the battery with a reference SOC;

    comparing, by the controller, the current DUC with the current DTE when the current SOC is greater than the reference SOC;

    determining, by the controller, whether a high speed condition or a high load condition is satisfied when the current DUC is greater than the current DTE; and

    setting, by the controller, a driving mode of the plug-in hybrid electric vehicle to be a charge sustaining (CS) mode when the high speed condition or the high load condition is satisfied.

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