The design of TSI engine is very clever. In fact, it puts the turbocharger and supercharger into the engine. Due to the inertia of the exhaust gas turbine, the turbocharger will have corresponding engine lag. The supercharger is directly driven by the engine shaft and can linearly change its own speed with the change of engine speed. Direct injection in cylinder-FSI
FSI technology represents a development direction of traditional gasoline engines. In the traditional gasoline engine, the cam position of the engine and various related working conditions are collected by the computer, and the injector is controlled to inject gasoline into the intake manifold. However, due to the distance between the nozzle and the combustion chamber, the mixing of gasoline and air is greatly influenced by the intake airflow and the valve switch, and tiny oil particles will be adsorbed on the pipeline wall, so the nozzle can be designed to directly inject fuel into the cylinder.