Power system for electric vehicle

DETAILED DESCRIPTION The present invention has been made in view of the aforementioned problems and has the object of providing a motorized vehicle power system capable of optimizing the refreshing discharge timing of the rechargeable battery.
FIG.
14 is a schematic diagram showing the basic relationship of the components according to the first inventive aspect.
As shown there a motorized vehicle power system 403 is provided with a rechargeable battery 400, a battery control unit 401 for executing control of battery conditions including the remaining capacity of the battery 400 and a charging unit 402 for charging the rechargeable battery 400.
The charging unit 402 is provided with a discharging means 404 for executing refreshing discharge of the rechargeable battery 400.
A discharge control means 405 controls the refreshing discharge executed by the charging means 404 on the basis of a refreshing discharge requirement signal sent from the battery control unit 401.
According to a second inventive aspect, based on the first inventive aspect, the discharge control means 405 of the charging unit 402 controls the discharging means 404 so as to enable refreshing discharge by the discharging means 404 only when a refreshing discharge requirement signal is received from the battery control unit 401.
According to a third inventive aspect, based on the second inventive aspect, the discharge control means 405 displays on a display means 407 the information of the reception of the refreshing discharge requirement signal from the battery control unit 401 upon receiving the signal.
According to a fourth inventive aspect, based on the third inventive aspect, the discharge control means 405 operates to execute refreshing discharge by the discharging means 404 when a refreshing switch 409 is turned on within a specified time and thereafter executes charging and operates to execute charging when the switch is not turned on while the information of the reception of the refreshing discharge requirement signal from the battery control unit 401 is displayed on the display means 407