What does TSI stand for in the Volkswagen series?
2 Answers
"The TSI technology in the Volkswagen series (Twincharger-Stratified-Injection) refers to the Twincharger (turbo and mechanical supercharging) Stratified Injection technology. Here is a detailed description: 1. The principle of turbocharging is to use the inertial force of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber, which in turn drives the coaxial impeller. The impeller compresses the air delivered from the air filter pipe, pressurizing it into the cylinder. The increased air pressure and density allow for more fuel to be burned, significantly enhancing the engine's output power. 2. The benefit of turbocharging is that it 'makes the horse run faster while eating less.' Typically, the engine power and torque increase by 20%-40% after installing a turbocharger. 3. However, behind the simple structure and outstanding performance of the exhaust turbo, there are drawbacks. Due to the inertia of the impeller, there is a delayed response to sudden changes in throttle, resulting in a brief period of 'lack of power' during rapid acceleration. 4. Additionally, the exhaust turbo relies on engine oil for cooling. The excessively high temperatures during operation and speeds exceeding 30,000 revolutions per minute can make the turbocharger a vulnerable component if not properly maintained or used. 5. Turbocharged engines have a power gap at both lower and higher RPMs. To further improve engine efficiency, a mechanical supercharger can be added to increase intake pressure at low RPMs."
Oh, I'm someone who frequently drives Volkswagen cars, so I'm very familiar with TSI! It stands for Twincharged Stratified Injection, which translates to 'dual-charged stratified injection' in Chinese. Simply put, Volkswagen uses two chargers—a turbocharger and a supercharger—working together to pressurize the engine, making it more powerful yet more fuel-efficient. Combined with stratified injection technology, it precisely controls fuel injection, making combustion more efficient. This technology has been used since the early Golf models and is now standard in cars like the Passat and Tiguan. After driving a TSI car, I noticed the acceleration is super quick, and the fuel consumption in the city is as low as around 7 liters per 100 kilometers, saving me a lot on fuel costs. However, during maintenance, it's important to note that the chargers are prone to carbon buildup, so regular cleaning is essential. Overall, TSI gives Volkswagen cars an edge in performance and environmental friendliness, making it a trustworthy technology.
