| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve estimation accuracy in required charging time of a rechargeable battery.SOLUTION: A charging-time estimation device 10 calculates a basic estimation value Tof constant-current charging-time Tand a basic estimation value Tof constant-voltage charging-time T, using battery temperature information tand residual battery capacity information SOC of a battery 206. And, using supply current value information I to the battery and degradation state information of the battery 206, correction is performed to the basic estimation value Tof the constant-current charging-time Tand the basic estimation value Tof the constant-voltage charging-time T, and the sum of the constant-current charging-time Tand the constant-voltage charging-time Tare calculated as required charging time T.</p> |
