适用于汽车发动机无负荷测功中的改良测速法

The Improvement on Speed Measuring Method Applied to the Measuring of Vehicle Engine Power in Condition of Unload

阐明了无负荷检测发动机功率的误差来源,主要是原理误差和测量误差,而测量误差主要源于转速的测量,对传统测速法进行改进,提高了测量精度。

This paper analyzes the source of mea sur ed errors of vehicle engine power in condition of unload.It in-cludes principle errors and measure d errors .The measured errors come fr om measured errors of flywheel transient speed.The traditional measuring me thod is improved and the accuracy of m easured results is increased.