Control device for fuel cell powered vehicle
First Claim
1. A control device for a fuel cell powered vehicle which is driven by an electric motor to which a fuel cell power plant and a rechargeable battery are electrically connected in parallel via an inverter which regulates an electric power supplied to the motor, comprising:
- a converter which converts an output voltage of one of the fuel cell power plant and the rechargeable battery;
a temperature sensor which detects a temperature of the electric motor; and
a programmable controller programmed to control an output voltage of the converter according to the temperature of the electric motor.
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Accused Products
Abstract
A fuel cell power plant (1) and a rechargeable battery (2) are connected in parallel to an electric motor (3) of a fuel cell powered vehicle, and the output voltage of the fuel cell power plant (1) is regulated by a converter (4). A temperature sensor (5) detects the temperature of the electric motor (3), and a controller (6) controlling the output voltage of the converter (4) to a predetermined high voltage value when the temperature of the electric motor (3) is greater than a predetermined temperature, thereby preventing the excessive rise of the temperature of the electric motor (3).
20 Citations
18 Claims
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1. A control device for a fuel cell powered vehicle which is driven by an electric motor to which a fuel cell power plant and a rechargeable battery are electrically connected in parallel via an inverter which regulates an electric power supplied to the motor, comprising:
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a converter which converts an output voltage of one of the fuel cell power plant and the rechargeable battery;
a temperature sensor which detects a temperature of the electric motor; and
a programmable controller programmed to control an output voltage of the converter according to the temperature of the electric motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14)
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11. A control device for a fuel cell powered vehicle which is driven by an electric motor to which a fuel cell power plant and a rechargeable battery are electrically connected in parallel via an inverter which regulates an electric power supplied to the motor, comprising:
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means for converting an output voltage of one of the fuel cell power plant and the rechargeable battery;
means for detecting a temperature of the electric motor; and
means for controlling an output voltage of the converting means according to the temperature of the electric motor. - View Dependent Claims (15, 16)
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12. A control method for a fuel cell powered vehicle which is driven by an electric motor to which a fuel cell power plant and a rechargeable battery are electrically connected in parallel via an inverter which regulates an electric power supplied to the motor, comprising:
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detecting a temperature of the electric motor; and
converting an output voltage of one of the fuel cell power plant and the rechargeable battery according to the temperature of the electric motor. - View Dependent Claims (17, 18)
supplying an output power to the electric motor independent of converting the output voltage of one of the fuel cell power plant and the rechargeable battery.
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18. The control method as defined in claim 12, further comprising:
maintaining an output power supplied to the electric motor while converting an output voltage of one of the fuel cell power plant and the rechargeable battery.
Specification