车用柴油机动力性及机械损失功率的快速诊断

Rapid Measurements of Power Performance and Mechanical Losses of Diesel Engine

探讨了用附加质量法确定柴油机总转动惯量的方法，利用无负载加速测功原理，设计了微机诊断系统，为柴油机故障诊断及在无测功设备的条件下，快速确定柴油机的动力性和机械损失功率提供了一种简便方法。将微机诊断系统的测量结果与测功器得到的数据相比，结果比较满意。

This paper studies one new method to determine moment of inertia of total engine moving components by attaching an additional one to the engine, using the principle of power measuring with acceleration at no external load, the microcomputer diagnostic system is designed, in the failure diagnostic application and in the case of no dynamometer, the microcomputer diagnostic system is a simple way to measure power performance and mechanical losses of diesel engine on board. Satisfactory conclusion is achieved by comparing the result of this new microcomputer diagnostic system measuring method with that of the traditional one.