| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a charging method, wherein an appropriate amount of charging is ensured according to the driving road and running speed of an electric vehicle and the like, and to prolong the life time of a valve regulated lead storage battery. <P>SOLUTION: The total amount (a) discharged and the average discharge current (I) of the valve regulated lead storage battery are measured, while the electric vehicle is running. A prescribed amount (Ah) of charging is computed, by multiplying the total amount (a) of discharging by a fixed coefficient (%), which is determined according to the average discharging current (I). Then, the battery is charged to the prescribed amount (Ah) of charging. During regenerative charging, the total sum of the amount charged, obtained by multiplying a regenerative current value by its regenerative charging time, is subtracted from the total amount (a) discharged, as a rule. If the voltage of the valve regulated lead storage battery during regenerative charging is not less than a predetermined value, the total sum of the amount charged during regenerative charging is not subtracted from the total amount (a) discharged. <P>COPYRIGHT: (C)2004,JPO</p> |
