The application reprogramming system of automobile ECU based on ISO 15765 is designed. The system consists of upper and lower computer, the upper computer is used as man-machine interface, the lower computer is used as the communication interface between upper computer and on-board ECU. The practical test shows that the system can successfully reprogram the application program of on-board ECU which complies ISO 15765 protocol.%针对车载电控单元应用程序更新频次越来越快的要求,设计了一种基于ISO15765协议的应用程序刷新系统.该系统采用上下位机的方式,上位机用作人机界面,下位机用作上位机与车载电控单元之间的通信接口.实际测试表明,该系统能成功刷新符合ISO 15765协议的车载电控单元的应用程序.
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