| 摘要 |
PROBLEM TO BE SOLVED: To estimate the remaining life of an on-vehicle battery for other use, by using other parameters different from the internal resistance and actual discharge capacity, while taking account of the usage of the battery.SOLUTION: A remaining life estimation method has a first step for acquiring the temperature rise rate Xr of an on-vehicle battery, a second step for acquiring at least any one of the positional information of a vehicle, travel route, and usage pattern of an on-vehicle battery, a third step for associating the temperature rise rate of the on-vehicle battery until the life thereof with the temperature rise rate of a battery for other usage, and acquiring a temperature rise rate map corresponding to the information acquired in the second step, a fourth step for estimating the temperature rise rate Yr of the battery for other usage, from the temperature rise rate Xr by using the temperature rise rate map, and a fifth step for estimating the remaining life of the battery for other usage by using the temperature rise rate Yr. |
