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分析了柴油机拖动过程气缸压缩压力的影响因素，在10多辆车上进行了气缸压缩压力和拖动电流的测试，引入了平均压缩电流的概念，并拟合出适用于12150L柴油机的经验公式，可以用于工况检测仪实现柴油机气缸压缩压力的不解体检测。
The influencing factors of the cylinder compression pressure in the process of diesel engine drag were analyzed. The cylinder compression pressure and drag current were tested on more than 10 vehicles. The concept of average compression current was introduced and the empirical formula suitable for 12150L diesel engine , Can be used for working condition detector to realize the compression pressure of diesel cylinder without disintegration detection.