| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a battery from becoming overcharge in a long descending slope, in a small-sized electric vehicle loading the battery charged by the energy of a regeneration brake. <P>SOLUTION: A charger 39 initially charges the battery 29 by an external power supply 51. An external terminal 50, such as a fault diagnosis machine, inputs a battery charging capacity limit value to a battery charging capacity limit value storage 52. At a travel mode where the regeneration brake is put on immediately after termination of charging, the battery is charged in an overvoltage operation suppression mode, where the battery charging capacity limit value is set to 80% of battery full charge time so that the battery 29 will not become overcharged. The overvoltage operation suppression mode or the normal operation mode is set in a mode-setting part 54. A mode deciding part 55 selects the battery charging capacity limit value that corresponds to the operation mode. A charging amount deciding part 57 outputs a charging termination command, when the charging amount becomes not smaller than the battery charging capacity limit value and terminates charging operation by the charger 39. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
