车用发动机性能综合诊断系统的研究

The Overall Diagnosis Unit of Vehicle Engine

本文介绍了用于在汽车不解体的条件下迅速准确地反映汽车发动机九项性能参数的综合诊断系统，由于在测量原理及测试方法上有别于国内外同类检测诊断设备。所以本系统具有测量精度高、重复性好、多功能综合检测及安装使用简捷等特点。根据实际检测结果，对测量的精度进行了分析研究。

The overall diagnosis unit of vehicle engine was introduced in this paper. Itis characterized by detecting nine vehicle engine performance parameters fast and accuratelywith engine on board. The measurement theory and method are different from the other present instruments. It has high precision, acceptable repeatability,multi-function,easy assemblyand use. the precision was analyzed by the measured data.