The invention relates to the technical field of automobiles, and discloses a starting
system and a control method. The starting
system comprises an engine, a generator, a
control unit, a gas
storage tank, a suction pipeline and an
electromagnetic valve. The generator can drive the engine to rotate. The engine comprises a cylinder, a
piston and a
throttle valve, the cylinder is provided with a gas intake manifold, and the
throttle valve is arranged on the gas intake manifold. The two ends of the suction pipeline can communicate with the gas
storage tank and the gas
inlet manifold correspondingly, and the
throttle valve and the suction pipeline are sequentially arranged in the flowing direction of gas in the gas
inlet manifold. And the
electromagnetic valve is arranged on the suction pipeline. In the shutdown process, the throttle valve is closed, the
electromagnetic valve is opened, the
piston sucks air in the gas
storage tank through the gas
inlet manifold, and the pressure of the gas storage tank is reduced. In the starting process, the pressure of the gas storage tank is smaller than the maximum allowable pressure of the gas storage tank, the throttle valve is closed, the electromagnetic valve is opened, and the gas storage tank extracts air of the gas inlet manifold, so that the compression reaction force of the
piston is reduced, the starting efficiency is improved, and the NVH performance of the engine is improved.