Secondary battery cooling system
A secondary battery cooling system includes a temperature sensor for detecting a temperature of a battery, an electrically operated cooling fan, and a control unit. The control unit determines whether or not cooling of the battery is necessary based on the battery temperature detected by the tempera...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A secondary battery cooling system includes a temperature sensor for detecting a temperature of a battery, an electrically operated cooling fan, and a control unit. The control unit determines whether or not cooling of the battery is necessary based on the battery temperature detected by the temperature sensor and a heat value of the battery estimated when an ignition switch is turned off, and, if the battery temperature is lower than a predetermined temperature and the estimated battery heat value exceeds a predetermined value in the determination, extends a length of time from the determination to a start of driving of the electrically operated cooling fan compared to when the heat value does not exceed the predetermined value, and cools the battery while the ignition switch of the vehicle is turned off. The battery can be thus cooled efficiently while charge and discharge is suspended. |
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