Research on Calculation Method of Spare Battery Life of Vehicle Emergency Call Module
The lifetime of the backup battery plays a vital role in the operation of the vehicle emergency call module,and most of the current lifetime estimation methods do not consider the characteristics of the vehicle large-span operating temperature range,which are not perfectly applicable on vehicle.In this paper,a calculation model of battery life based on battery capacity and deterioration rate is established,and then a battery life termination judgment method based on the modified Arrhenius formula equivalent aging temperature conversion and deterioration degree is proposed,which can finally reasonably estimate the service life of the backup battery and effectively evaluate the service life of the on-board emergency call module in the life cycle of the whole vehicle.