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柳工922D型挖掘机的电控油门控制系统是柳工自主研发的产品。为了提高油门控制精度和发动机功率控制效果,柳工的油门控制系统采用了双闭环控制方式。本文介绍该电控油门工作原理及故障排查方法。1.工作原理922D型挖掘机电控油门系统主要由主控制器、油门电动机控制器、油门电动机、发动机转速传感器和10挡油门旋钮等组成,电控油门系统如图1所示。挖掘机作业时,主控制器检测到操作人员设定的油门旋钮信号后,输出相应的控制信号至油门电动机控制器。油
Liugong 922D excavator electric throttle control system is self-developed products Liugong. In order to improve the throttle control accuracy and engine power control effect, Liugong throttle control system uses a double closed-loop control. This article describes the working principle of the electric throttle and troubleshooting methods. 1. Working principle 922D excavator electric throttle system is mainly composed of the main controller, throttle motor controller, throttle motor, engine speed sensor and 10 stop throttle knob and other components, electric throttle system as shown in Figure 1. Excavator operation, the main controller detects the operator set throttle knob signal, the corresponding control signal output to the throttle motor controller. oil