电喷发动机故障诊断中的计算机仿真方法

Computer emulation for failure diagnosis of EFI engine

电喷发动机的故障定位目前常用故障码及专家系统辅助分析法，这２种方法定位的准确性还不太理想．本文提出一种基于替代比较法原理的计算机硬件仿真法．理论分析和初步的试验结果表明：仿真替代式故障定位法是一种独特、有效的方法．

Two common methods for positioning failure in EFI engine repair such as reading failure codes and ES assistant analysis are often used presently. So far, the positioning accuracy of these methods are not ideal. A new computer hard ware emulation method based on comparative substitution principle was proposed. Theory analysis and initial test results showed that failure positioning in emulation substitution manner was a special and effective method.