What does TSI stand for?

[AvaRose]

Automotive TSI is an acronym for four key features: Turbo-charging, Super-charging, Injection, and Fuel-Stratified-Injection. Among them, T stands for twin charging (turbocharging and supercharging), S stands for stratified, and I stands for direct injection. The Chinese name for automotive TSI is turbocharged direct injection technology. The advantages and disadvantages of direct injection technology are as follows: 1. It is more conducive for the ECU to control the fuel injection volume because gasoline is injected directly into the cylinder, avoiding the wall-wetting phenomenon associated with manifold injection. 2. Direct injection operates at higher pressure, which helps achieve lean combustion, thereby improving engine power. 3. Since gasoline is injected directly into the cylinder, the mixing time between gasoline and air is significantly reduced, leading to incomplete combustion and carbon deposits. This situation is more pronounced when the engine is running at low speeds.