Do FSI engines have throttle?

If you refer to the Volkswagen FSI engine, I can only say that of course there is, in fact, every engine has a throttle, the so-called accelerator pedal is not to control the fuel injection, in fact, to control the opening of the throttle, the throttle opening represents the engine load, so there is no engine without throttle. Both throttle and valve are important components of the engine's entire valve train. Some people may say that the valve mechanism cannot be regarded as a throttle, but in fact, the throttle is equivalent to the main switch of the entire mechanism.

The highlight of the FSI should be the multi-point segmented injection in the cylinder, and the fuel mixing can better reflect the computer-controlled control of gas mixing than the intake manifold hybrid type. To achieve a better atomization effect, of course, this requires higher injection pressure, good airflow pulse, and a reasonable injection position.

The signal of an injection should be determined by the Euro air flow meter and the crankshaft position and camshaft position signal, especially for multi-point EFI. In the closed-loop control, the front oxygen sensor, also known as the air-fuel ratio sensor, feeds back with the knock sensor.

There's no saying -- it's just that you have to have, you just know that. No, the engine control unit [PCM], how to calculate the current load of the engine, how to calculate the air intake - the throttle opening signal is a very important signal on the electronically controlled engine.

There must be, or I might as well inhale it.

Proportional amplifiers can be used.

It's EFI.

No, computer-controlled direct fuel injection.

Direct injection in the cylinder is high combustion efficiency, low fuel consumption and stronger power. Hope it helps.

FSI is now a relatively new engine technology, the original gasoline engine fuel injector is located in the intake tract, and then mixed with air before entering the combustion chamber, and each time the amount of fuel is given according to the engine operation, there is no way to control the amount of fuel, which is the reason for the high fuel consumption of many ordinary engines for a long time. If the gasoline engine wants to achieve the best power, it is necessary to control the compression ratio, which is simply to ensure the purity of the gasoline, but the old fuel injection method gasoline will attach a lot of particulate impurities after being injected into the air intake, and it will not be pure after entering the combustion chamber, so that the compression ratio can not reach the ideal state, and the power will not reach the best.

Now FSI is to put the fuel injector directly into the combustion chamber, and then use the computer to calculate the most accurate amount of fuel injection needed, and feed the oil in a quantitative manner, so as to achieve the best compression ratio and provide more power.

The original gasoline engine was fool-proof, but now FSI calculates the most scientific amount of fuel injection through computer control, and the fuel is injected directly into the cylinder and no longer into the air duct.

The FSI engine stands for Fuel Stratified Injection, which means Fuel Stratified Injection, and is a technology based on GDI (In-Cylinder Direct Injection Engine). Compared with the conventional airway injection ignition engine, FSI injects fuel directly into the combustion chamber, due to the vaporization cooling effect of the spray, it optimizes the charging efficiency, due to the realization of the quality adjustment of the gasoline engine, no longer needs the throttle, greatly reduces the intake air loss, and the stratified combustion reduces the heat transfer loss of the engine, thereby increasing the output power at full load and reducing the fuel consumption of part load.

Naturally aspirated is without a supercharger, which means that the air simply passes through the air filter - the throttle (commonly known as the "throttle") - the intake manifold - to the "cylinder", and the gasoline is injected directly into the intake manifold through the fuel injector.

Naturally aspirated engines draw a combustible mixture into the cylinder, while electromagnetic injectors inject gasoline into the intake manifold and mix with air.

Due to the presence of vortex currents in the intake manifold, the air-fuel ratio of the combustible mixture entering the cylinder is around .

This means that the proportion of combustible mixtures in the entire cylinder is about the same.

The FSI engine draws air into the cylinder, and the injector injects gasoline directly into the cylinder to mix with the air a split second before ignition.

Since the injector is designed to inject fuel near the spark plug, a relatively thick gas mixture is formed around the spark plug.

So it's easier to ignite, and then it's a little bit of a relatively dilute gas mixture in the vicinity, which is called stratified combustion.

It's just an ordinary in-cylinder direct matching, unlike Volkswagen's in-cylinder direct injection with layered combustion function, which is a really good engine.

Ordinary in-cylinder direct injection. It can improve the combustion efficiency of oil.

The domestic TSI is actually a TFSI, that is, a turbocharged fuel stratified injection engine. The foreign TSI is turbocharging + mechanical supercharging + direct injection in the cylinder + stratified combustion. If you have sufficient financial strength, choose TSI, and if you are a little worse, TFSI and TSI (anyway, it's the same thing).