新能源汽车渗透率逐年提高,但燃油商用车在其细分领域中仍有举足轻重的地位。发动机ECU对燃油经济性、动力性及整车电控功能等有着重要作用,然而在开发过程中整车厂常采用直接装车调试的方式,未对ECU与整车电器系统开展系统级联调。本文基于发动机ECU仿真设备搭建整车电器系统与ECU联调台架,开展仿真测试,研究总结出24项与电子电器相关的ECU测试项目,包括ECU巡航、油门联锁、进气加热等功能,拓展了整车电子电器测试台架的功能,降低测试成本。

The penetration rate of new energy vehicles has been increasing year by year, but fuel commercial vehicles still hold a significant position in their respective niche markets. The engine ECU plays a crucial role in fuel economy, power performance, and the overall electronic control functions of the vehicle. However, during the development process, vehicle manufacturers often adopt the method of direct installation and debugging, without conducting system-level integration and debugging of the ECU and the vehicle's electrical system. This paper builds a vehicle electrical system and ECU joint debugging bench based on the engine ECU simulation equipment, conducts simulation tests, and studies and summarizes 24 ECU test items related to electronic and electrical systems, including ECU cruise control, throttle interlock, intake air heating and other functions, to expand the functions of the vehicle electronic and electrical test bench and reduce test costs.