What does TSI mean for Volkswagen cars?
2 Answers
TSI stands for Twinscharger (dual charging = Turbocharger + Supercharger) Fuel-Stratified-Injection, where T represents Twincharging, S represents Stratified, and I represents Injection, with Fuel meaning fuel. Here is some extended information about TSI: 1. The comprehensive advantages of TSI engines are: minimal power loss, relatively increased output power, allowing for greater torque and horsepower with smaller displacements, thereby achieving more power. 2. TSI engines can produce high torque at low RPMs and maintain maximum torque output across a wide RPM range, ensuring continuous and robust power delivery. 3. The TSI engines introduced for domestic production by Volkswagen in China omit the mechanical supercharging and stratified combustion parts (Fuel-Stratified-Injection), leaving only the combination of single turbocharging and direct fuel injection technology.
I recently researched Volkswagen's TSI, which actually stands for Turbo Stratified Injection. Specifically, it represents turbocharged direct injection technology. Volkswagen uses this system to address the insufficient power of small-displacement engines. For example, a 1.4L TSI engine can deliver 150 horsepower, significantly more powerful than naturally aspirated engines of the same displacement. The core principle relies on a turbocharger to force more air into the cylinders, combined with high-pressure fuel injectors that spray fuel directly into the combustion chamber, resulting in exceptionally high combustion efficiency. What I admire most is its ability to be both fuel-efficient and powerful in daily driving, with city fuel consumption around 7 liters per 100km. Over the years, Volkswagen has implemented TSI in models like the Sagitar and Passat. With the technology upgraded to the third generation, even turbo lag has been greatly reduced, making the driving experience smoother.
