BATTERY MANAGING DEVICE FOR BATTERY VEHICLE, BATTERY VEHICLE, BATTERY MANAGING SYSTEM FOR BATTERY VEHICLE, AND BATTERY MANAGING METHOD FOR BATTERY VEHICLE

摘要

PROBLEM TO BE SOLVED: To manage necessary data easily and efficiently in case that the user wants to grasp the situation in which a battery is used in the long run so as to determine the battery life of a battery vehicle. SOLUTION: A battery capacity data acquisition means 30 acquires residual capacity data on the residual quantity of the electric variable accumulated in a battery 9. A time clocking means 31 clocks the time when the residual capacity data, are acquired and the unit period P. A minimum value storage means 33 stores the minimum value of the residual capacity data in every unit period P. A minimum value determining means 34 compares the residual capacity data and the residual capacity data stored in the minimum value storage means 33 within the unit period P, based on the time clocking results, each time the residual capacity data are acquired anew, and determines the side of a smaller value a minimum value. A minimum value updating means 35 updates the residual capacity data stored in the minimum value storage means 33 into the residual capacity data being determined to be the minimum value with the minimum value determining means 34. COPYRIGHT: (C)2006,JPO&NCIPI