Turbocharging is actually an air compressor. So as to improve the output power of the engine. Without changing the cylinder capacity of the engine, the purpose of increasing the output power of the engine can only be achieved by increasing the compression ratio of the air input to the cylinder. Its working principle is to use the engine exhaust gas discharged from the engine exhaust port as power to drive the impeller in the turbine chamber. At the same time, the impeller is directly connected with the booster wheel in the booster chamber. One end of the gas collecting chamber is connected with an air filter. The other end presses air from the gas filter into the engine cylinder. The purpose of increasing the air in the engine has been achieved. First of all, it should be clear that the turbocharging system works with the exhaust gas of the engine. If you don't use it, it is also a waste to discharge waste gas in vain. From this point, I don't see the economy of stopping or limiting the use of turbocharging. Moreover, from the control point of view, adding a controller to start or not turbocharging is not conducive to the turbocharging structure (since it is turbocharging, of course, the fewer interfaces, the better. Reduce the air leakage rate ~) As for the shortcomings of turbocharging, it should be the response speed of turbocharging to the throttle ~ it should be caused by the working principle. Step on the accelerator hard. First, fuel is injected into the engine, and then the car accelerates. Get fat and drive the turbine. In order to boost the pressure ~ ~, turbocharging should respond slowly. The same problem occurs when the throttle is off (regardless of stepping on the brakes). For similar situations, it is said that the industry now adopts increasing the machining accuracy of the compression chamber and adopting new materials (such as ceramics) to overcome it. For the problem of turbocharging, because the working environment of turbocharging is extremely bad. About 700 degrees Celsius. At the same time, the maximum penetration rate of the turbine is said to reach 8-65438+100000 rpm. So the problem lies in the bearing of the turbine. I.e., a bearing above a fan blade driven by exhaust gas.