Fuel cell system and method of controlling fuel cell system
AssigneeToyota Jidosha Kabushiki Kaisha
InventorHiromu Saito
Life of this patent
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Abstract
The present disclosure makes it possible to store data on the cause of an output shortage in a memory while reducing the capacity of the memory for storing data on an output shortage. A fuel cell system of the present disclosure comprises: a drive motor for driving a vehicle; a plurality of power sources that include a fuel cell and a secondary battery; a memory that stores data on a failure of output of the drive motor; and a controller that controls writing of the data on the failure into the memory. When an actual output value of the drive motor is smaller than a reference value decided by an output request value, the controller stores in the memory data on operating state of one of power sources, with an actual output value smaller than a power source output request value.
Claims6
A fuel cell system installed in a vehicle, comprising:
- a drive motor that drives the vehicle;
- a plurality of power sources that include a fuel cell and a secondary battery;
- a memory that stores data on a failure of output of the drive motor as a history, the data including measurement values on operating state of a power source, out of the plurality of power sources, having an actual output value smaller than a reference value decided based on a power source output request value;
- and
- a controller that controls writing of the data on the failure into the memory,
- wherein when an actual output value of the drive motor is smaller than a reference value decided based on an output request value of the drive motor, the controller stores in the memory the measurement values on operating state of the power source, out of the plurality of power sources, having the actual output value smaller than the reference value decided based on the power source output request value, and the controller does not store in the memory measurement values on operating state of one or more power sources, out of the plurality of power sources, other than the power source having the actual output value smaller than the reference value decided based on the power source output request value, and
- wherein when the actual output value of the drive motor is not smaller than the reference value decided based on the output request value of the drive motor, the controller does not store in the memory the measurement values on operating state of the plurality of power sources.
A method of controlling a fuel cell system installed in a vehicle, the fuel cell system comprising:
- a drive motor that drives the vehicle;
- a plurality of power sources that include a fuel cell and a secondary battery;
- a memory that stores data on a failure of output of the drive motor as a history, the data including measurement values on operating state of a power source, out of the plurality of power sources, having an actual output value smaller than a reference value decided based on a power source output request value;
- and a controller that controls writing of the data on the failure into the memory,
- the method comprising:
- when an actual output value of the drive motor is smaller than a reference value decided based on an output request value to the drive motor, storing, by the controller, in the memory the measurement values on operating state of the power source, out of the plurality of power sources, having the actual output value smaller than the reference value decided based on the power source output request value, without storing in the memory measurement values on operating state of one or more power sources, out of the plurality of power sources, other than the power source having the actual output value smaller than the reference value decided based on the power source output request value, and
- when the actual output value of the drive motor is not smaller than the reference value decided based on the output request value of the drive motor, not storing in the memory the measurement values on operating state of the plurality of power sources.
Dependencies are inferred from the claim text.