Analysis of the match between the LaVida Tiptronic transmission and the engine

After Lai Yi's listing, the most criticized is the slightly old engine, saying that Shanghai Volkswagen did not use the most advanced turbo technology. This issue is worth discussing. It is not that the most advanced engine will be good. The extreme point is that the engine on the Boeing aircraft is definitely the most advanced. The power is absolutely strong. Can it be installed in the car? Obviously not reliable. First, technology. And the cost is too high, and the second is not necessary at all. In the crowded city, it is most realistic to consider the low-speed and high-twist engine.

LaVida's powertrain comes from the 1.6LEA111 engine of its brother POLO and the 2.0LMFI engine of Touran. These two engines are equipped with Volkswagen's E-Gas electronic throttle technology and electronically controlled cooling system, which is a perfect power unit. Paired with the Tiptronic 6-speed hand/automatic gearbox. Take Long Yi's 2.0L engine as an example. The 2.0L engine has a maximum power of 88kw. From the power output line, this is a power unit that focuses on low-rotation output. It can achieve a maximum torque of 180N•m at 3750rpm, but At 1500 rpm, it can output more than 85% of the maximum torque, and 2000 rpm can continuously output more than 95% of the maximum torque. This adjustment is obviously more in line with the city driving characteristics.

LaVida's power output is smooth and plentiful. The credit is not only the mature engine, but also the 6-speed manual transmission. The gearbox has more gears than the traditional automatic gearbox, with 6 forward gears and 1 reverse gear. And the gear ratio of each gear has been carefully designed and matched. It is achieved by a simple planetary gear set combined with an arrangement of additional connected double planetary gear sets. This automatic transmission can transmit a maximum torque of 310 N•m; the unit weighs only 84 kg and has a structural length of only 350 mm.

The LaVida transmission is superior to its class. Tiptronic technology combines the advantages of an automatic transmission with a manual transmission. It combines the advantages of simple operation of the automatic transmission with the freewheeling of the manual transmission. The driver is comfortable and comfortable driving experience.

In fact, to evaluate the true or bad quality of a car is not simply to look at the engine, nor to simply look at the transmission, but to see if the match between the two can bring better power and achieve lower fuel consumption.

Japanese cars are most proud of VTEC and VVT-I. On behalf of the manufacturers are the two major auto giants Honda and Toyota. In this case, the variable intake valve control technology changes the intake air volume by changing the intake valve opening. Engine torque. Although this technology does get more power, it does not seem to be very effective in reducing fuel consumption. For example, Corolla uses a 1.8L dual VVT-i engine, while CIVIC uses a 1.8L Honda i-VTEC high-efficiency engine. Japanese cars have never been as strong as their strengths, advocating fuel economy, but using double VVT-i, Corolla gives a fuel consumption of 7.5 liters per 100 kilometers, while the LaVida 2.0L hand-in-one fuel consumption is only 6.3L per 100 kilometers.

In addition, because the response of the Japanese car gearbox is obviously not comparable to the Ziptronic six-speed manual transmission, the speed of the flowing water is not felt when the speed is increased, and the light steering wheel makes you lack solidity at high speed.

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