DF_4型内燃机车现有数量大且使用年限均较长,是目前我国铁路机车主力机型之一,部分机车经过了三次厂修,接近报废年限。随着使用年限的不断增加,机车配件基本性能的下降,惯性故障发生频率在不断的上升,其中柴油机自动停机故障频率的上升将会严重干扰正常的铁路运输秩序,如何预防和处理此类故障,是一个很值得研究探讨的问题。 Currently, DF4 diesel locomotives are large in number and have a long service life. They are one of the main models of China’s railway locomotives. Some locomotives have gone through three plant repairs and are approaching the end of their useful life. With the increase of service life, the basic performance of locomotive accessories declines and the frequency of inertia failure continues to rise. The rise of the frequency of automatic shutdown of diesel engine will seriously disturb the normal order of railway transportation, how to prevent and deal with such failures, Is a very worthwhile study of the issue.