Novel hydraulic excavator throttle control system

A novel hydraulic excavator throttle control system mainly comprises a display screen, a CPU mainboard, a control knob, a potentiometer, a throttle motor and a throttle bracing wire. The novel hydraulic excavator throttle control system is structurally characterized in that the display screen displays the work mode of a hydraulic excavator, the CPU mainboard monitors the rotational speed of an engine in real time, and the potentiometer monitors the rotational angle of the throttle motor in real time and feeds back to the CPU mainboard in real time. When the work mode of the excavator is changed by operating the control knob, the CPU mainboard changes the length of the throttle bracing wire by the aid of the throttle motor, and adjusts the position of a throttle pull rod of the engine to realize real-time and accurate closed-loop control for the rotational speed of the engine. Simultaneously, moisture-proof, salt mist resistant and shock-resistant rubber materials are wrapped outside the throttle motor.