Method and apparatus for controlling plug-in hybrid electric vehicle
First Claim
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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Abstract
A method and apparatus for operating a plug-in hybrid electric vehicle are provided. The includes setting an initial distance until charge (DUC) and calculating a current DUC by subtracting a travel distance of the vehicle from the initial DUC after the initial DUC is set. A current distance to empty (DTE) is calculated based on a current state of charge (SOC) of a battery and the current SOC of the battery is compared with a reference SOC. The current DUC is compared with the current DTE when the current SOC is greater than the reference SOC. Thus, whether a high speed condition or a high load condition is satisfied is determined when the current DUC is greater than the current DTE. A driving mode of the vehicle is then set to be a charge sustaining (CS) mode when the high speed condition or the high load condition is satisfied.
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Citations
20 Claims
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1. A method for controlling a plug-in hybrid electric vehicle, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for controlling a plug-in hybrid electric vehicle, comprising:
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a data detector configured to detect data for operating the plug-in hybrid electric vehicle; a user interface unit configured to provide an interface to receive user input; and a controller configured to be executed by a predetermined program to operate the plug-in hybrid electric vehicle based on signals input from the data detector and the user interface unit, wherein the predetermined program includes a series of commands for performing a method for operating the plug-in hybrid electric vehicle, the method comprising; setting, by the 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. - View Dependent Claims (15, 16, 17)
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18. A non-transitory computer readable medium containing program instructions executed by a controller, the computer readable medium comprising:
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program instructions that set an initial distance until charge (DUC); program instructions that calculate a current DUC by subtracting a travel distance of a plug-in hybrid electric vehicle from the initial DUC after the initial DUC is set; program instructions that calculate a current distance to empty (DTE) based on a current state of charge (SOC) of a battery; program instructions that compare the current SOC of the battery with a reference SOC; program instructions that compare the current DUC with the current DTE when the current SOC is greater than the reference SOC; program instructions that determine whether a high speed condition or a high load condition is satisfied when the current DUC is greater than the current DTE; and program instructions that set 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. - View Dependent Claims (19, 20)
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Specification