| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce startup time and suppress startup loss for a motor-driven vehicle equipped with a large-capacity capacitor. <P>SOLUTION: A power supply system 100 includes: a secondary battery 18; a boost converter 30; system main relays 17a and 17b; a charging resistance 16 and a charging resistance line relay 15; a smoothing capacitor 13; a voltage converter 20 connected with the smoothing capacitor 13 and the secondary battery 18 in parallel; a capacitor 19 connected with the voltage converter 20; and a control part 80. The control part 80 includes first charging means to charge the smoothing capacitor 13 up to a predetermined voltage by turning on the charging resistance line relay 15 and the second charging means to charge the capacitor 19 by: turning off the charging resistance line relay 15; turning on the system main relays 17a and 17b and turning on/off each switching device element after charging the smoothing capacitor 13 with the first charging means. <P>COPYRIGHT: (C)2012,JPO&INPIT |
