分布式电池管理系统CAN总线通信仿真试验研究

电池管理系统在新能源纯电动汽车中扮演着非常重要的角色,分布式动力电池管理系统是一种多模块控制的集成系统,各个控制模块之间CAN总线通信存在复杂性和迟滞性,针对这一问题,采用CANoe/MATLAB联合仿真的方法对其进行试验。其中,在MATLAB/Simulink仿真建模环境下建立了信号采集、SOC估算和故障诊断的多模块通信模型,同时在CANoe总线仿真平台建立了分布式电池管理系统的CAN网络架构,验证了多模块之间通信的实时性和准确性。结果表明,CANoe/MATLAB联合仿真的方法对分布式电池管理系统的通信策略开发提供了便捷。

Research on simulation test of CAN bus communication for distributed battery management system

The battery management system plays a very important role in pure electric vehicles for new energy vehicle. The distributed power battery management system is an integrated system with multi-module control. The complexity and hysteresis of CAN bus communication between each control module is aimed at this problem. It was tested by CANoe/MATLAB joint simulation method. Among them, the multi-module communication model of signal acquisition, SOC estimation and fault diagnosis is established in the MATLAB/Simulink simulation modeling environment. At the same time, the CAN network architecture of the distributed battery management system is established on the CANoe bus simulation platform, and the multi-module is verified. The real-time and accuracy of communication. The results show that the CANoe/MATLAB joint simulation method provides a convenient way to develop the communication strategy of the distributed battery management system.