【摘要】 基于STM32F105VC芯片,设计了一款锂电池电池管理系统。该设计包括电池管理系统的硬件电路、软件程序以及SOC算法。硬件内容包括电源转换电路、拓展CAN模块、RS232模块。使用KEIL MDK软件开发电池管理系统的主控程序。SOC算法采用拓展卡尔曼滤波方法。最终的样品验证测试表明,文中设计的电池管理系统主控单元能够准确计算SOC,及时准确与整车控制器(VCU)通信。文中设计的输入电压为19～32 V,电源抗干扰能力强,可直接连接电动车电源进行供电,作为电动汽车的电池管理系统。更多还原

【Abstract】 Based on STM32F105VC chip,this design designs a lithium battery management system. This design includes the battery management system’s hardware circuit,software program and SOC algorithm.The hardware includes power conversion circuit,expanded CAN module and RS232 module. Using KEIL MDK software to develop the main control program of battery management system. SOC algorithm adopts extended Kalman filter. The final sample verification test shows that the main control unit of the battery management system designed in this paper can accurately calculate SOC and communicate with the vehicle controller(VCU)timely and accurately. The input voltage range of this design is 19～32 V,and the power supply has strong anti-interference ability. It can be directly connected to the electric vehicle power supply as the battery management system of the electric vehicle.更多还原