A new online monitoring system is proposed here to solve the critical issues.A algorithmn of SOC (state of charge) is developed by the discharge curves and the thermal model of battery.

• 摘要研究了电动汽车电池的在线监测系统，结合电池的放电特性图和电池热模型，给出了动力电池剩余电量相应的数学表达式。