The invention provides a hill starting
system. The hill starting
system comprises a two-position three-way
electromagnetic valve, a
load sensing valve, an ABS valve, a gearbox controller and a hill starting switch. An air inlet of the two-position three-way
electromagnetic valve is sequentially communicated with an air outlet of an
air compressor through a foot valve, an air cylinder, a four-protection valve and a drier, an exhaust port of the two-position three-way
electromagnetic valve is communicated with an air inlet of the ABS valve through the
load sensing valve, the two-position three-way electromagnetic valve and the ABS valve are in
signal connection with a hill starting controller, and the gearbox controller is in
signal connection with the hill starting controller, the hill starting switch and an engine. During use, firstly the hill starting switch is pressed, a manual valve is switched off, an accelerator is trodden, the hill starting controller automatically controls the engagement depth of a
clutch and coordinates the output torque of the engine according to hill resistance, currently needing to be overcome, obtained through calculation, and a vehicle is made to be started smoothly. By means of the design, the structure is simplified, the starting response speed is increased, and integrated control of a
brake, the
clutch and the engine is achieved.