| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a charge/discharge control device for a motor battery capable of preventing over-charging of a motor battery to prevent the deterioration of the motor battery. <P>SOLUTION: The charge/discharge control device 11 for a motor battery 12 comprises a current sensor 14 detecting the input/output current IB of the motor battery 11, a remaining amount of charge sensor 12a detecting the remaining amount of charge SOC of the motor battery 11, a charge control means 15 controlling charging to the motor battery 12 from the motor 3, a zero power control means 15 controlling the charge control means 15 so that the input/output current IB detected by the current sensor 14 becomes substantially zero when the remaining amount of charge SOC of the motor battery 12 exceeds a prescribed value, and a discharge control means 15 discharging the motor battery 12 while stopping zero power control (step 9) when a zero power control state by the zero power control means 15 continues for a prescribed time T1 (step 6: YES). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
