POWER SUPPLY DEVICE AND METHOD OF CONTROLLING THE SAME
First Claim
1. A device for supplying power to an apparatus, the device comprising:
- a rechargeable battery including a cathode terminal and an anode terminal;
a high potential output terminal for connection to the apparatus;
a low potential output terminal for connection to the apparatus;
a cathode side relay arranged between the cathode terminal of the rechargeable battery and the high potential output terminal;
an anode side relay arranged between the anode terminal of the rechargeable battery and the low potential output terminal; and
a controller for switching each of the cathode side relay and the anode side relay between an open state and a closed state, wherein the controller measures a first voltage between the high potential output terminal and the anode terminal of the rechargeable battery when the cathode side relay and the anode side relay are set in the open state to determine whether or not the cathode side relay is fused, and the controller measures a second voltage between the low potential output terminal and the cathode terminal of the rechargeable battery when the cathode side relay and the anode side relay are set in the open state to determine whether or not the anode side relay is fused.
1 Assignment
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Accused Products
Abstract
A power supply device and a method for controlling the power supply device in which a fusion checking process for the cathode side relay and the anode side relay is easily performed within a short period of time. A battery ECU (controller) measures a first voltage between a high potential output terminal and an anode terminal of the rechargeable battery when a cathode side relay arranged between the high potential output terminal and a cathode terminal of the rechargeable battery and an anode side relay arranged between a low potential output terminal and the anode terminal of the rechargeable battery are open to determine whether or not a cathode side relay is fused. The battery ECU also measures a second voltage between the low potential output terminal and the cathode terminal of the rechargeable battery to determine whether or not the anode side relay is fused.
23 Citations
9 Claims
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1. A device for supplying power to an apparatus, the device comprising:
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a rechargeable battery including a cathode terminal and an anode terminal;
a high potential output terminal for connection to the apparatus;
a low potential output terminal for connection to the apparatus;
a cathode side relay arranged between the cathode terminal of the rechargeable battery and the high potential output terminal;
an anode side relay arranged between the anode terminal of the rechargeable battery and the low potential output terminal; and
a controller for switching each of the cathode side relay and the anode side relay between an open state and a closed state, wherein the controller measures a first voltage between the high potential output terminal and the anode terminal of the rechargeable battery when the cathode side relay and the anode side relay are set in the open state to determine whether or not the cathode side relay is fused, and the controller measures a second voltage between the low potential output terminal and the cathode terminal of the rechargeable battery when the cathode side relay and the anode side relay are set in the open state to determine whether or not the anode side relay is fused. - View Dependent Claims (2, 3, 4, 5)
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6. A method for controlling a power supply device including a rechargeable battery having a cathode terminal and an anode terminal, the power supply device including a high potential output terminal and a low potential output terminal connected to an apparatus for power supply thereto, a cathode side relay arranged between the cathode terminal of the rechargeable battery and the high potential output terminal, and an anode side relay arranged between the anode terminal of the rechargeable battery and the low potential output terminal, the method comprising the steps of:
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setting the cathode side relay in an open state;
setting the anode side relay in an open state;
measuring a first voltage between the high potential output terminal and the anode terminal of the rechargeable battery while maintaining the cathode side relay and the anode side relay in the open state;
measuring a second voltage between the low potential output terminal and the cathode terminal of the rechargeable battery while maintaining the cathode side relay and the anode side relay in the open state;
determining whether or not the cathode side relay is fused based on the measured first voltage; and
determining whether or not the anode side relay is fused based on the measured second voltage. - View Dependent Claims (7)
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8. A product for use with a computer for controlling a power supply device including a rechargeable battery having a cathode terminal and an anode terminal, the power supply device including a high potential output terminal and a low potential output terminal connected to an apparatus for power supply thereto, a cathode side relay arranged between the cathode terminal of the rechargeable battery and the high potential output terminal, and an anode side relay arranged between the anode terminal of the rechargeable battery and the low potential output terminal, the product comprising a computer-readable medium encoded with program logic which when executed by the computer causes the computer to perform steps including:
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setting the cathode side relay in an open state;
setting the anode side relay in an open state;
measuring a first voltage between the high potential output terminal and the anode terminal of the rechargeable battery while maintaining the cathode side relay and the anode side relay in the open state;
measuring a second voltage between the low potential output terminal and the cathode terminal of the rechargeable battery while maintaining the cathode side relay and the anode side relay in the open state;
determining whether or not the cathode side relay is fused based on the measured first voltage; and
determining whether or not the anode side relay is fused based on the measured second voltage. - View Dependent Claims (9)
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Specification