| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve estimation accuracy of the required charging time of a secondary cell.SOLUTION: A charging time estimation device 10 calculates a basic estimation value Tof a constant current charging time Tand a basic estimation value Tof a constant voltage charging time T. Using supply current value information I to a battery and deterioration state information of the battery 206, the charging time estimation device 10 corrects the basic estimation value Tof the constant current charging time Tand the basic estimation value Tof the constant voltage charging time Tand calculates a sum of the constant current charging time Tand the constant voltage charging time Tas a required charging time T.</p> |
