Recently, as a representative of high-performance sports cars, public GTI finally entered China. This time to enter the Chinese market, the public GTI, is the latest generation of public products. Its stylish and sporty appearance and interior adhering to the public tradition of high-performance cars. The harmony between the engine and the transmission makes the GTI more unique charm.
FSI Gasoline Engine
GTI's excellent dynamic performance thanks to its 2.0LFSI turbocharged engine. The engine uses 4-cylinder 4-cylinder structure. Its 5100r / min to provide the maximum output power of 147kW, wide the maximum torque output area (1800 ~ 5000r / min to reach
The biggest feature of the engine is the use of FSI technology. FSI is the acronym for FuelStratifiedInjection, meaning fuel stratification. The use of this technology to FSI engine compared with the traditional engine has a more powerful power, lower fuel consumption, greater output power and torque. FSI engine can automatically select two operating modes according to the load of the engine. In the low load for the stratified thin burning, when the high load is homogeneous combustion.
When the engine is low load (stratified lean combustion), the throttle is half open, the fuel system injects fuel in the engine compression stroke. The special piston is designed so that the inhaled air and the injected fuel form eddy currents only around the spark plug Forming a combustion-air mixture that is sufficient to ignite the mixture in the entire cylinder. The other parts of the cylinder are air-rich high air-fuel mixture, resulting in thin burning.
At full load (homogeneous combustion), according to the amount of inhalation of air to accurately control the amount of fuel injection, fuel and air into the cylinder and fully atomized mixing, so that the air mixture in line with the theoretical air-fuel ratio evenly filled the cylinder, Combustion can make the engine power to be the most vividly played, and the fuel evaporation and cooling the mixture, thus avoiding the occurrence of knock.
DSG transmission
Volkswagen GTI equipped on the transmission, is to create a field of automatic transmission revolution DSG dual clutch transmission. It combines the advantages of manual transmission and automatic transmission in one, both to save fuel, but also can make driving full of fun. The shift between the transmission gears is very fast, and each shift point shift is very smooth and smooth. In the manual Tiptronic mode, the up / down gear can be operated with the shift lever provided on the steering wheel.
The DSG is called Direct-ShiftGearbox, meaning a direct shift transmission. The distinctive feature of this transversal design is the wet-controlled dual-clutch system. Wherein the clutch 1 is responsible for controlling the odd gear and the reverse gear, and the clutch 2 is responsible for controlling the even gears. This is a transmission consisting of two parallel transmissions. Precise clutch movements make the traction at the time of shifting almost unaffected.
The DSG is a dual clutch unit consisting of two sets of clutch plates, and a double drive shaft mechanism consisting of a solid shaft and an outer sleeve. The Mechatronic electronic control system and the hydraulic unit simultaneously control the two sets of clutches And the action of the gear set. When the transmission is in a gear, the clutch 1 is engaged and a set of gears bite the output power. The gears of the next set of gears are pre-selected and the associated clutch 2 is still in a disengaged state; the clutch 1 in the operating state is separated when it is in the next gear, Of the gears off the power, while the clutch 2 has been pre-selected gear, into the next block. This process often takes only 0.2 seconds. Throughout the gearshift process DSG transmission to ensure that at least one set of gear output power, so that the public GTI will not be power intermittent situation.
"FSI" engine technology and "DSG" transmission technology, the perfect combination, to promote the Volkswagen "easy" to create such a sport with a superficial GTI. At the same time, high performance did not reduce GTI's fuel economy, the car 100km average fuel consumption of about 8L.
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