Hello, the CVT transmission has a history of more than 100 years, Nissan has been committed to promoting the upgrading of the CVT since 1992, and the Dongfeng Nissan has mastered the core technology, the quality of which can be trusted.

The following will take you to take stock of CVT technology through the generations, and understand the "past and present life" of Nissan CVT.

In 1992, Nissan developed a new generation of CVT transmission, named "N-CVT" (with electromagnetic clutch), which is a small CVT with the intelligence to withstand small torque, and was mainly used in small-displacement models such as the March.

By 1997, Nissan had developed a CVT that could withstand higher torque? CVT transmission, named "Hyper CVT". Hesitation innovative use of high rigidity material transmission steel belt, withstand the maximum torque has been greatly improved, this Hyper CVT can be equipped with 2.0L displacement models, at that time in the industry is a breakthrough.

In 2000, Nissan pioneered the first roller CVT, called "EXTROID-CVT," which uses rollers to transmit power and can withstand more torque. The EXTROID-CVT was not used on a large scale, probably due to cost.

After 2002, Nissan's CVT transmission entered a phase of rapid development, and from then on, it was widely used in its models. Through the application of technologies such as "thrust-type" high-strength steel belts, the CVT transmission (called "XTRONIC-CVT") can be mounted on medium- and large-displacement models, and thus the Nissan CVT has entered the "XTRONIC-CVT" phase. "XTRONIC-CVT" era.

By 2009, Nissan pioneered the first CVT with a secondary gearbox (codenamed CVT7), which can achieve a wide gear ratio of 7.3, and at the same time realize the design of lightweight and miniaturization, which was then mainly applied to the models with a displacement of 1.6L or less, and now basically replaces the previous-generation small CVT transmission, which is mainly mounted on the Sunny, the new Hennessey, the Lixil, and the Tiida, among other models.

Domestically Nissan has introduced a new generation of XTRONIC-CVT (codenamed CVT8), which has excellent fuel economy and driving smoothness, and is mainly used in medium and large displacement models. The CVT transmission currently used on the new generation of the Celestial is this one. It is understood that this transmission will replace CVT2 and CVT3 in the future, and will be equipped on 2.5L-3.5L models.

Looking at the history of Nissan's CVT transmission development, the first stage is basically to continuously improve the torque transmitted by the CVT transmission, while the latter stage focuses more on improving the efficiency of the CVT transmission and as well as the range of gear ratios, in order to obtain better fuel economy and driving performance.

Advantages of CVT:

1. Economy

CVT can realize stepless speed change in a fairly wide range, so as to get the best match between the transmission system and the engine conditions, and improve the fuel economy of the whole vehicle.

2, power

The reserve power of a car determines the car's ability to climb hills and accelerate. The greater the backup power of the car, the better the dynamics of the car. Due to the CVT's continuously variable characteristics, it can obtain the transmission ratio with the largest backup power, so the power performance of CVT is significantly better than that of mechanical transmission (MT) and automatic transmission (AT).

3. Emissions

CVT has a wide range of gear ratios, reaching the world's leading 7.3:1, which enables the engine to maintain the best working conditions at all times, thus improving the combustion process and reducing emissions. Real-world tests have shown that CVT exhaust emissions are reduced by approximately 10 percent compared to cars fitted with 4-AT.

4, cost

CVT system has a simple structure and contains about 40% fewer parts than AT transmission, and the quality of the whole vehicle is also reduced. Due to the use of the system can save fuel, with the mass production and system, material innovation, CVT parts (such as drive belt or drive chain, active wheel, driven wheel and hydraulic pump) production costs, will be reduced by 20% -30%.

5, driving smoothness

Since the speed ratio change of CVT is continuous, the acceleration or deceleration process of the car is very smooth, and the driving is very simple and safe, so that the user can get a full range of driving pleasure.