VEHICLE POWER SUPPLY APPARATUS
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Accused Products
Abstract
There is provided a vehicle power supply apparatus which includes a battery charged by a generator and supplies, to a plurality of loads, electric power discharged by the battery and electric power generated by the generator. The apparatus includes an electric double layer capacitor connected in parallel to the battery, and a connection circuit for switching connection and disconnection between respective homopolar terminals of the battery and the electric double layer capacitor. The connection circuit is connected to charge the electric double layer capacitor based on a potential difference between terminals of the connection circuit. The plurality of loads include loads each of which generates a rush current of a predetermined value or more and each of which is fed electric power outputted by the electric double layer capacitor.
39 Citations
17 Claims
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1-8. -8. (canceled)
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9. A vehicle power supply apparatus which comprises a battery charged with electric power generated by a generator operated in conjunction with an engine and through which electric power discharged by the battery and electric power generated by the generator are supplied to a plurality of loads, the vehicle power supply apparatus comprising:
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an electric double layer capacitor connected in parallel to the battery;
a connection circuit for switching connection and disconnection between respective homopolar terminals of the battery and the electric double layer capacitor; and
a potential difference detecting section for detecting a potential difference between terminals of the connection circuit;wherein the connection circuit is connected to charge the electric double layer capacitor based on the potential difference detected by the potential difference detecting section, and wherein the loads comprise loads each of which generates a rush current of a predetermined value or more and each of which is fed electric power outputted by the electric double layer capacitor. - View Dependent Claims (10, 11, 12, 13)
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14. A vehicle power supply apparatus which comprises a battery charged with electric power generated by a generator operated in conjunction with an engine and through which electric power discharged by the battery and electric power generated by the generator are supplied to a plurality of loads, the vehicle power supply apparatus comprising:
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an electric double layer capacitor connected to the battery through a backflow prevention circuit so as to be charged; a second switch for switching connection and disconnection between the electric double layer capacitor and one or a plurality of the loads; a battery voltage detecting section for detecting an output voltage from the battery; and a battery voltage determining section for determining whether or not the voltage detected by the battery voltage detecting section is lower than a predetermined voltage; wherein upon determination by the battery voltage determining section that the detected voltage is lower than the predetermined voltage, the second switch is connected. - View Dependent Claims (15, 16, 17)
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Specification