An intelligent gas supply control system for lng vehicles
A technology of control system and intelligent control unit, which is applied in charging system, engine control, fuel supply device, etc., can solve the problems of inability to start the engine, low gas cylinder pressure, and high gas cylinder pressure, so as to reduce the driver's operation and improve the Dynamic and safety-enhancing effects
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[0018] The intelligent air supply control system designed by the invention can completely replace the traditional self-pressurized air supply system of LNG commercial vehicles. Such as figure 1 As shown, a hydraulic system is installed on the basis of the original vehicle, including a hydraulic oil tank 2, a hydraulic oil pump 3, a valve group 6 (the valve group includes a bypass mechanism 5 and a reversing mechanism 7), and an LNG pump 8 is installed on the LNG cylinder 9. And be connected by hydraulic pipeline, the liquid outlet pipeline of LNG pumping pump is connected with carburetor 10 through the safety valve of original car, manual valve, keeps original car state behind carburetor; And install carburetor gas temperature sensor 11 behind carburetor 10; After the buffer tank 12, a buffer tank gas temperature sensor 14 and a buffer tank gas pressure sensor 13 are installed; a hydraulic pressure sensor 4 is installed on the valve group 6; the intelligent control unit 1 is c...
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