A Simulated System of Battery Management System Based on SAE J1939 Protocol

The Battery Management System (BMS) is provided to manage battery packs and interface with other systems which require information of charging state. It designed and developed a simulated system of BMS which can communicate with the Electric Vehicle (EV) off-board charger via the SAE J1939 protocol. The system could build different battery models based on corresponding electrical parameters such as battery type, charging mode, nominal voltage, etc. It was applied in the protocol conformance testing through which to verify whether the design of off-board charger was conform to protocol specifications. The results show that the system runs well and reliable, greatly improves the development and test efficiency of off-board charger.