Power Supply Device And Electric Vehicle Incorporating Said Device
First Claim
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1. A power supply device having a plurality of power storage devices connected in parallel with each other, comprising:
- a plurality of temperature detection units for respectively detecting temperatures of the plurality of power storage devices;
a plurality of voltage detection units for respectively detecting voltages applied to the plurality of power storage devices;
a plurality of switch elements respectively connected in series with the plurality of power storage devices;
a control unit for controlling the ON and OFF states of the plurality of switch elements based on the temperatures detected at the plurality of temperature detection units,wherein the control unit sets a connecting time period for electrically connecting two power storage devices among the plurality of power storage devices based on the voltages detected at the plurality of voltage detection units.
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Abstract
To provide a power supply device and an electric vehicle in which variation in the respective remaining capacities among a plurality of power storage devices can be reduced, a power supply device sets a connecting time period for electrically connecting two power storage devices among a plurality of power storage devices 10A to 10C based on voltages VSA to VSC detected at a plurality of voltage detection units 42A to 42C.
12 Citations
6 Claims
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1. A power supply device having a plurality of power storage devices connected in parallel with each other, comprising:
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a plurality of temperature detection units for respectively detecting temperatures of the plurality of power storage devices; a plurality of voltage detection units for respectively detecting voltages applied to the plurality of power storage devices; a plurality of switch elements respectively connected in series with the plurality of power storage devices; a control unit for controlling the ON and OFF states of the plurality of switch elements based on the temperatures detected at the plurality of temperature detection units, wherein the control unit sets a connecting time period for electrically connecting two power storage devices among the plurality of power storage devices based on the voltages detected at the plurality of voltage detection units. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification