汽车氧传感器波形分析在检修中的应用

Application of Oscillogram Analysis of Oxygen Sensor in Automobile Overhaul

在汽车故障诊断中,氧传感器信号电压波形反映空燃比是否控制在理论空燃比附近。通过氧传感器正常波形与故障波形的比较,分析诊断发动机故障的准确率将大幅提高。因此,氧传感器的波形检测和分析在汽车检修过程中有着重要的意义。

In the trouble diagnosis of automobile, the wave form of voltage for oxygen sensor demonstrates if the practical value is near the theoretical value for air fuel ratio. By the comparison between the normal oscillogram form and the abnormal wave form of oxygen sensor, the accuracy of the analysis of the trouble diagnosis of engine may remarkably improve. The testing and analyzing of the wave form of oxygen sensor is very important in the process of the examining and repairing of automobile.