在柴油机电控喷油系统的基础上研究了转速闭环控制，通过控制喷油泵的供油齿杆位置，达到控制喷油量的目的。相对于实际油门位置提出并应用了当量油门位置的概念。试验结果表明：车用大功率柴油机转速闭环控制方案是可行的，控制效果较好，对车辆动力与传动系的综合电控研究具有重要的意义。 Based on the diesel engine electronic fuel injection system, the closed-loop speed control is studied. The purpose of controlling the fuel injection quantity is achieved by controlling the position of the fuel supply rack of the fuel injection pump. Relative to the actual throttle position proposed and applied the concept of equivalent throttle position. The experimental results show that the closed loop control scheme of high power diesel engine is feasible and the control effect is good. It is of great significance to the study of integrated electric control of vehicle powertrain and transmission system.