| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a power-saving charging system that reduces cost by simplifying configuration, and improves maintainability. <P>SOLUTION: The charging system includes: a main battery 41 and a sub-battery 42 for outputting DC power; an inverter 43 for converting the DC power from the main battery 41 to AC power; electric motors 33, 45 driven by the AC power output from the inverter 43; first to third capacitors 61, 62, 63 that are electrically connected to the sub-battery 42 and the electric motors 33, 45 and store regenerative power; a switch 49 for turning on/off the electric connection between the first to third capacitors 61, 62, 63 and the sub-battery 42; and a controller 44 for determining whether the electric motors 33, 45 are in a drive state or a stop state, and for turning on or off the switch according to a determined result. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
