Fuel cell electric vehicle and method of controlling same
AssigneesHyundai Motor Company, Kia Corporation
InventorsMi Ji Kim, Joo Yeon Kim, Seong Cheol Jeong, Jae Ok Ha
Life of this patent
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Abstract
An embodiment method of controlling a fuel cell electric vehicle includes determining a required output power amount of a fuel cell stack from a total required output power amount of a battery and the fuel cell stack based on an output power distribution ratio of the fuel cell stack according to a current state of charge (SOC) value of the battery and controlling an operation of the fuel cell stack based on the required output power amount of the fuel cell stack.
Claims20
A method of controlling a fuel cell electric vehicle, the method comprising:
- determining an output power distribution ratio based on a target state of charge (SOC) error value of a battery and a total required output power amount, wherein the target SOC error value corresponds to a value obtained by subtracting a current SOC value from a target SOC value of the battery;
- determining a required output power amount of a fuel cell stack from the total required output power amount of the battery and the fuel cell stack based on the output power distribution ratio of the fuel cell stack according to the current SOC value of the battery;
- and
- controlling an operation of the fuel cell stack based on the required output power amount of the fuel cell stack.
A fuel cell electric vehicle comprising:
- a fuel cell stack;
- a battery;
- and
- a controller configured to:
- determine an output power distribution ratio based on a target state of charge (SOC) error value of the battery and a total required output power amount, wherein the target SOC error value corresponds to a value obtained by subtracting a current SOC value from a target SOC value of the battery;
- determine a required output power amount of the fuel cell stack from the total required output power amount of the battery and the fuel cell stack based on the output power distribution ratio of the fuel cell stack according to the current SOC value of the battery;
- and
- control an operation of the fuel cell stack based on the required output power amount of the fuel cell stack.
A fuel cell electric vehicle comprising:
- a fuel cell stack;
- a battery;
- and
- a controller configured to:
- determine an output power distribution ratio based on a target state of charge (SOC) error value of the battery and a total required output power amount, wherein the target SOC error value corresponds to a value obtained by subtracting a current SOC value from a target SOC value of the battery;
- determine a required output power amount of the fuel cell stack from the total required output power amount of the battery and the fuel cell stack based on the output power distribution ratio of the fuel cell stack according to the current SOC value of the battery;
- control an operation of the fuel cell stack based on the required output power amount of the fuel cell stack;
- determine a corrected required output power amount of the fuel cell stack by adding an output power correction amount of the fuel cell stack according to a dischargeable amount of the battery to the required output power amount of the fuel cell stack;
- and
- control the operation of the fuel cell stack based on the corrected required output power amount.
Dependencies are inferred from the claim text.