Hardware-in-loop verification of battery management system with RT-LAB

Battery management system (BMS) plays an important role in all-electric vehicles and hybrid electric vehicles. It manages the rechargeable battery and guarantees the energy storage system working safely and efficiently. As BMS testing with real batteries is time-consuming, unsafe and unsystematic, this paper introduces a hardware-in-loop (HIL) system with RT-LAB to test BMS. The HIL system is made up of a host PC, a high-precision real-time simulator, and a battery emulator simulating the states of series connected cells. The HIL system is of high confidence, accomplishes systematic verification and largely improves the efficiency to develop and test a BMS.