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US 12,620,609 B2Granted
Method for controlling fuel cell system, fuel cell system, and fuel cell vehicle
AssigneeHonda Motor Co., Ltd.
InventorsKenichi Shimizu, Kenta Suzuki
Life of this patent
Estimating the term…
Abstract
By processing circuitry executing a program recorded in a storage unit, a control method for a fuel cell system includes calculating a load output and calculating a maximum output, comparing the load output with the maximum output, and controlling, in a case that the load output exceeds the maximum output, the fuel cell system to decrease a power storage output used by a load, by increasing a power generation output.
Claims3
A control method for a fuel cell system, the fuel cell system comprising:
- a fuel cell configured to generate power generation voltage;
- an electrical power storage device configured to generate power storage voltage;
- a load including a motor and an inverter including AC terminals connected to the motor and DC terminals connected to the electrical power storage device;
- a boost converter including input terminals connected to the fuel cell and output terminals connected to each of the electrical power storage device and the DC terminals of the inverter;
- a memory;
- and
- processing circuitry configured to execute a program recorded in the memory,
- by the processing circuitry executing the program recorded in the memory, the method comprising:
- calculating a load output that is electric power required to drive the load, and calculating a maximum output that is maximum electric power that is configured to be supplied from the electrical power storage device to the load;
- comparing the load output with the maximum output;
- and
- controlling, in a case that the load output exceeds the maximum output, the fuel cell system to increase a power generation output, which is electric power supplied from the fuel cell to the load via the boost converter, and to decrease a power storage output used by the load, wherein
- in the controlling, upon detecting that the maximum output has reached the load output, the power generation output that has been increased is held to an increased level.
10 more elements
A fuel cell system comprising:
- a fuel cell configured to generate power generation voltage;
- an electrical power storage device configured to generate power storage voltage;
- a load including a motor and an inverter including AC terminals connected to the motor and DC terminals connected to the electrical power storage device;
- a boost converter including input terminals connected to the fuel cell and output terminals connected to each of the electrical power storage device and the DC terminals of the inverter;
- a memory;
- and
- processing circuitry configured to execute a program recorded in the memory,
- by the processing circuitry executing the program recorded in the memory, the system:
- calculates a load output that is electric power required to drive the load, and calculating a maximum output that is maximum electric power that is configured to be supplied from the electrical power storage device to the load;
- compares the load output with the maximum output;
- and
- controls, in a case that the load output exceeds the maximum output, the fuel cell system to increase a power generation output, which is electric power supplied from the fuel cell to the load via the boost converter, and to decrease a power storage output used by the load;
- and
- holds the power generation output to an increased level when the maximum output reaches the load output.
11 more elements
A fuel cell vehicle in which a fuel cell system is mounted,
- wherein the fuel cell system comprises:
- a fuel cell configured to generate power generation voltage;
- an electrical power storage device configured to generate power storage voltage;
- a load including a motor and an inverter including AC terminals connected to the motor and DC terminals connected to the electrical power storage device;
- a boost converter including input terminals connected to the fuel cell and output terminals connected to each of the electrical power storage device and the DC terminals of the inverter;
- a memory;
- and
- processing circuitry configured to execute a program recorded in the memory,
- by the processing circuitry executing the program recorded in the memory, the system:
- calculates a load output that is electric power required to drive the load, and calculating a maximum output that is maximum electric power that is configured to be supplied from the electrical power storage device to the load;
- compares the load output with the maximum output;
- and
- controls, in a case that the load output exceeds the maximum output, the fuel cell system to increase a power generation output, which is electric power supplied from the fuel cell to the load via the boost converter, and to decrease a power storage output used by the load;
- and
- holds the power generation output to an increased level when the maximum output reaches the load output, and
- wherein the motor is used as a traveling motor.
13 more elements
Dependencies are inferred from the claim text.