Power configuration system for fuel cell hybrid vehicle and method for controlling the same
First Claim
1. A power configuration system of a fuel cell hybrid vehicle equipped with a fuel cell as a main power source and storage means as an auxiliary power source, wherein high voltage components for driving the fuel cell are arranged in front of a first blocking diode installed in a main bus terminal such that the voltage of the fuel cell is maintained below the voltage of the storage means by consuming electric power of the fuel cell when the high voltage components are driven during regenerative braking, wherein a second blocking diode is added to the main bus terminal at an output terminal of the fuel cell.
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Abstract
The present invention provides a power configuration system for a fuel cell hybrid vehicle and a method for controlling the same, in which a second blocking diode is installed in a main bus terminal at an output terminal of a fuel cell (in front of a first blocking diode) separately from the existing first blocking diode installed in the main bus terminal, the positions of high voltage components for driving the fuel cell are changed from the rear of the first blocking diode to the front of the first blocking diode, and the operations of the high voltage components are appropriately controlled during regenerative braking such that the voltage of the fuel cell may be maintained below that of the supercapacitor.
21 Citations
20 Claims
- 1. A power configuration system of a fuel cell hybrid vehicle equipped with a fuel cell as a main power source and storage means as an auxiliary power source, wherein high voltage components for driving the fuel cell are arranged in front of a first blocking diode installed in a main bus terminal such that the voltage of the fuel cell is maintained below the voltage of the storage means by consuming electric power of the fuel cell when the high voltage components are driven during regenerative braking, wherein a second blocking diode is added to the main bus terminal at an output terminal of the fuel cell.
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8. A method for controlling a power configuration system of a fuel cell hybrid vehicle equipped with a fuel cell as a main power source and storage means as an auxiliary power source, the method comprising:
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allowing the fuel cell hybrid vehicle, in which high voltage components including an LDC for driving the fuel cell are arranged between a first blocking diode and a second blocking diode installed in a main bus terminal, to enter a regenerative braking mode; and allowing a fuel cell system controller to drive the high voltage components to consume electric power of the fuel cell when entering the regenerative braking mode such that the voltage of the fuel cell is maintained below that of the storage means. - View Dependent Claims (9)
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- 10. A power configuration system of a fuel cell hybrid vehicle equipped with a fuel cell as a main power source and a storage means as an auxiliary power source, wherein one or more high voltage components for driving the fuel cell are arranged in front of a first blocking diode installed in a main bus terminal, wherein a second blocking diode is added to the main bus terminal at an output terminal of the fuel cell.
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15. A method for controlling a power configuration system of a fuel cell hybrid vehicle equipped with a fuel cell as a main power source and storage means as an auxiliary power source, the method comprising:
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allowing the fuel cell hybrid vehicle, wherein one or more high voltage components for driving the fuel cell are arranged between a first blocking diode and a second blocking diode installed in a main bus terminal, to enter a regenerative braking mode; and allowing a fuel cell system controller to drive the high voltage components to consume electric power of the fuel cell when entering the regenerative braking mode. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification