发动机ECU工况仿真问题与策略

Problems and Strategies on Engine ECU Simulation

汽车发动机ECU是发动机电子控制系统的核心部件,其运行情况直接影响到汽车的安全性、动力性和经济性。针对汽车发动机ECU工况仿真过程中遇到的难题进行深入分析,将繁杂的发动机信号归为模拟量和数字量分别进行处理,从众多不同的信号中提炼出8路关键信号,并简要指出了可行的模拟方法,简化了发动机信号仿真,并为研发发动机ECU检测与诊断的新型设备奠定了基础。

Automotive engine ECU is the core eompnnent of the engine electronic control management system, its failure will directly affect vehicle safety, dynamics and economy. The problems existed in engine ECU simulation process are analyzed deeply, the complicated engine signals are classified as analog and digital processing, 8 key signals extracted from many different signals are described, feasible simulation methods are provided briefly and signals simulation is simplified.This method offers foundation in the development of new inspection and diagnosis devices of ECU.