Study on explosion-proof intelligent electric control system of mine special vehicle with hydrostatic driving

According to a suitable performance scope of DA control applied to the moving system of the special vehicle with the present mine hydrostatic driving, lo w uilization rate of the engine power, poor operation comfort existed in the underground mine vehicles and other problems, an explosion proof electric control system W as researched and development to suit the vehicle performances and working environment in underground mine. With study on the output features of the explosion proof electric proportion pressure reducing valve applied in the electric control system, in combination with the features curve of the engine, the paper studied and set up th e discharging control tactics of the pump ( motor) . The intelligent braking system, engine protection system, working mode selection, auxiliary display function and othe rs suitable to the mine vehicle were studied and developed. In comparison with the system applied to the support removing vehicle and the DA control mode vehicle, the results showed that the system highly improved the loaded vehicle speed and climbing speed, reduced the oil consumption and improved the power and operation comf ort of the vehicle.