发明名称 |
POWER SUPPLY DEVICE FOR VEHICLE |
摘要 |
The invention has an object of providing a power supply device for vehicle of high efficiency while keeping longer service life of a capacitor. By supplying an electric power of a capacitor to various electronic devices for a first predetermined time period after a vehicle engine has been stopped and discharging an electric power of the capacitor to a battery for a second predetermined time period after the first predetermined time period has ended, the voltage of the capacitor is reduced. By forcing the electric power of the capacitor to discharge at a forced discharge circuit until the voltage of the capacitor is substantially equal to a predetermined voltage after the second predetermined time period has ended, the time period during which the capacitor is held at a high voltage is made shorter. Longer service life of the capacitor and higher efficiency of the power supply device can be achieved. |
申请公布号 |
US2012119574(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201113113709 |
申请日期 |
2011.05.23 |
申请人 |
SONE MITSUO;KIHARA NOBUHIRO;UEMURA FUMITO;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
SONE MITSUO;KIHARA NOBUHIRO;UEMURA FUMITO |
分类号 |
B60L1/00 |
主分类号 |
B60L1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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