Research on auto and rapid exchange system of EV battery cases

In order to solve the problem of short continuous driving mileage and long charging time of electric vehicle (EV), the method of auto and rapid exchange system of EV battery cases is proposed. The exchange system deals with corresponding control of multi-components which are relatively moving each other. Based on single chip wireless transceiver nRF905 and MC68HC908GZ16, the wireless communication module is designed. The controller single chip and the wireless transceiver is connected through SPI interface. Based on this module, the wireless communication control system is developed, which is used on battery cases quick exchange of EV. The system is made up of four wireless communication modules, which are portable device, machine arm, in-vehicular module and battery-case shelves module. The remote-control, quick localization, auto release are realized using this system. The parameters are calibrated through fieldwork. The system operates stably, reliably, and met application requirements of the project, which is verified by fieldwork.