CHARGING AND DISCHARGING CONTROLLER FOR SECONDARY CELL

摘要

PROBLEM TO BE SOLVED: To perform charging and discharging with appropriate electric power in accordance with the usage environment and condition of a cell. SOLUTION: When cell temperature is equal to and smaller or larger than a prescribed temperature, a changing power upper limit value Pin-s and a discharging power one Pout-s are determined in such a way as to become smaller in comparison with those for room temperature. The temperature of the cell is detected, and the charging and discharging power is determined in such a way as to become equal to or lower than the charging and discharging power upper limits Pin-s, Pout-s to control the charging of the cell. COPYRIGHT: (C)2003,JPO