| 摘要 |
PROBLEM TO BE SOLVED: To provide a regenerable potential power calculating method which enables the regenerable potential power to be accurately calculated, independently of the precision of a voltage measuring system or cell voltage dispersion inside a battery set. SOLUTION: In a regenerable potential power calculating method, which calculates the regenerable potential power of batteries based on the voltage and current values during an electrical discharge, the effect of the change of the characteristics of the batteries or the error in the voltage measurement on the calculation of a regenerable potential power value is reduced by setting a maximum voltage Vmax' value at the time of calculating the regenerable potential power, based on the measured discharge voltage value Vcgh of the batteries in a fully charged state. Also, the regenerative charging of the batteries, based on the calculated value of the regenerable potential power so obtained, charges the batteries with appropriate regenerative charging power. |
