Fuel cell vehicle and controlling method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorsDong Kwan Lee, Seong Cheol Jeong
Life of this patent
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Abstract
A fuel cell vehicle includes: a fuel cell; a battery; and a controller that determines a load demanded output value. In particular, the controller determines whether a first condition related to overcharge of the battery and a second condition related to over-discharge of the battery are satisfied based on the load demanded output value, and further determines whether a constant output is operable based on an output efficiency of the fuel cell when the first and second conditions are satisfied. The controller controls an output of the fuel cell according to a result of the determination.
Claims20
A fuel cell vehicle, comprising:
- a fuel cell;
- a battery;
- and
- a controller configured to:
- determine a load demanded output value required by a load in the fuel cell vehicle,
- determine whether a first condition related to overcharge of the battery and a second condition related to over-discharge of the battery are satisfied based on the load demanded output value,
- determine whether constant output is operable based on an output efficiency of the fuel cell based on the load demanded output vale and a current battery SOC (state of charge) when the first and second conditions are satisfied, and
- control an output of the fuel cell based on whether the constant output is operable.
A method for controlling a fuel cell vehicle, the method comprising:
- determining a load demanded output value required for an entire load of the fuel cell vehicle;
- determining whether a first condition related to overcharge of a battery and a second condition related to over-discharge of the battery are satisfied based on the load demanded output value;
- determining whether constant output is operable based on an output efficiency of a fuel cell based on the load demanded output value and a current battery SOC (State of Charge) when the first condition and the second condition are satisfied;
- and
- controlling an output of the fuel cell in response to whether the constant output is operable.
Dependencies are inferred from the claim text.