Method for controlling fuel cell of fuel cell vehicle
AssigneesHyundai Motor Company, Kia Corporation
InventorsSeung Won Baik, Jong Bin Kang, Sang Beom Lee, Ki Chang Kim, Seung Min Song
Life of this patent
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Abstract
Disclosed is a method for controlling a fuel cell of a fuel cell vehicle. The method comprises determining a reference output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle, correcting the reference output based on vehicle driving condition information comprising a vehicle altitude and coolant temperature and degree of degradation of the fuel cell, and restarting or stopping the power generation of the fuel cell based on the corrected reference output.
Claims18
A method for controlling a fuel cell of a fuel cell vehicle, comprising:
- determining a reference output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle;
- correcting the reference output based on vehicle driving condition information and degree of degradation of the fuel cell;
- and
- restarting or stopping the power generation of the fuel cell based on the corrected reference output;
- wherein the restarting or stopping the power generation of the fuel cell comprises:
- determining whether it is required to restart or stop the power generation of the fuel cell according to a driving state of the fuel cell and a difference between the required output of the vehicle and the corrected reference output;
- calculating an integral value by integrating the difference between the required output of the vehicle and the corrected reference output during a time when the power generation of the fuel cell is restarted or stopped when it is determined that it is required to restart or stop the power generation of the fuel cell;
- and
- restarting or stopping the power generation of the fuel cell based on the calculated integral value.
A method for controlling a fuel cell of a fuel cell vehicle, comprising:
- determining a refer e output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle;
- correcting the reference output based on vehicle driving condition information and degree of degradation of the fuel cell;
- and
- restarting or stopping the power generation of the fuel cell based on the corrected reference output;
- wherein the correcting the reference output comprises:
- determining a correction value of the reference output based on the vehicle driving condition information comprising vehicle altitude and coolant temperature and the degree of degradation of the fuel cell;
- and
- correcting the reference output based on the determined correction value;
- wherein the correction value of the reference output required for restarting the power generation of the fuel cell is determined based on Equation 1 below:
- Correction
-
- value
-
- of
-
- reference
-
- output
- required
-
- for
-
- restarting
-
- power
- generation
-
- of
-
- fuel
-
-
- cell
- =
- X
- ⨯
- Z
- Y
- Equation
-
- 1
- X
- =
- 1
- Atmospheric
-
- pressure
-
- (
- atm
- )
-
- according
-
- to
-
- vehicle
-
-
- altitude
- Y
- =
- Target
-
- temperature
-
- of
-
- coolant
-
- (
- °
-
- C
- .
- )
- Current
-
- temperature
-
- of
-
- coolant
-
- (
- °
-
- C
- .
- )
- Z
- =
- Determination
-
- factor
-
- of
-
-
- degree
-
- of
-
- degradation
-
- of
-
- fuel
-
- cell
-
- (
- V
- )
- .
A method for controlling a fuel cell of a fuel cell vehicle comprising:
- determining a reference output required for restarting or stopping power generation of a fuel cell according to a required output of a vehicle;
- correcting the reference output based on vehicle driving condition information and degree of degradation of the fuel cell;
- and
- restarting or stopping the power generation of the fuel cell based on the corrected reference output;
- wherein the correcting the reference output comprises:
- determining a correction value of the reference output based on the vehicle driving condition information comprising vehicle altitude and coolant temperature and the degree of degradation of the fuel cell, and
- correcting the reference output based on the determined correction value;
- wherein the correction value of the reference output required for stopping the power generation of the fuel cell is determined based on Equation 2 below:
- Correction
-
- value
-
- of
-
- reference
-
- output
- required
-
- for
-
- stopping
-
- power
- generation
-
- of
-
- fuel
-
-
- cell
- =
- 1
- Y
- ⨯
- Z
- Equation
-
- 2
- Y
- =
- Target
-
- temperature
-
- of
-
- coolant
-
- (
- °
-
- C
- .
- )
- Current
-
- temperature
-
- of
-
- coolant
-
- (
- °
-
- C
- .
- )
- Z
- =
- Determination
-
- factor
-
- of
-
-
- degree
-
- of
-
- degradation
-
- of
-
- fuel
-
- cell
-
- (
- V
- )
- .
Dependencies are inferred from the claim text.