Transmission 8 speed CVT manual automatic how to explain

The 8-speed automatic manual transmission of the car refers to a certain automatic transmission with the function of manual shifting; And this gearbox with manual shifting doesn't have to be an AT gearbox, it could be a dual-clutch transmission, or it could be a CVT. Hope to adopt!

1.The automatic manual transmission is divided into automatic and manual mode, while the 8-speed automatic manual is the 8-speed transmission of the car, and when the car switches to manual mode, 8th gear is the highest gear.

2.To explain in detail, according to the order of gears from top to bottom, the car of automatic transmission is marked as: P parking gear, R reverse gear, N neutral gear, D forward gear, S acceleration gear, + - is to switch to manual analog plus or minus gear.

The 8th gear reduces engine speed at high speeds, significantly improving comfort while reducing fuel consumption and emissions. Note: The 8-speed gearbox is generally only available on luxury cars.

1. The internal structure is differentThe AT gearbox is a transmission mechanism composed of multiple sets of clutch plates and one to three sets of planetary gears. The CVT gearbox, on the other hand, is a conventional mechanism consisting of a steel belt and two transmission wheels of variable diameter.

2. The efficiency is differentThe efficiency of the AT transmission transmission is somewhat higher than that of the CVT. However, the comfort when changing gears is not as good as that of the CVT.

3. Comfort is differentThe AT gearbox will feel more or less slightly when changing gears or downshifting, which is normal. Both transmissions have their own characteristics, the CVT gearbox is comfortable, but the traditional torque may be relatively small.

In the strict sense of the word, it is not a gearbox form, and any automatic transmission can realize the function of manual integration, but the name of manual integration is often seen in the vehicle configuration table, usually referring to the hydraulic AT gearbox with manual automatic function.

Difference: The former is a stepless gearbox, with a fixed number of transmission ratios under the forward gear, and the internal parts that realize the shift are generally planetary gear sets. The latter CVT is a continuously variable gearbox, and there are theoretically countless transmission ratios under the forward gear, and the internal components that realize the shift are generally bevel gears and steel belts.

The former is the structure of a gearbox, and the latter is a control mode.

What type of hand you're talking about.

8-speed CVT with chain shift, PC version emulates 8-speed. 6-speed manual automatic integration, gear shifting, computer version simulates 6-speed, can switch manual track banquet mode shifting. The 8-speed CVT and the 6-speed automatic manual are both the front and bottom lines of automatic transmissions, and their differences are:

1. The CVT gearbox is a continuously variable gearbox, while the 6-speed manual automatic gearbox refers to an automatic transmission.

CVT means that the car has 8 forward gears, while 6th gear means that the vehicle has 6 forward gears.

3. The CVT gearbox is better than the 6-speed manual automatic gearbox in terms of smoothness.

The CVT is generally used on high-end models, and the 6-speed manual automatic is generally used on ordinary models.

CVT gearbox, referred to as CVT gearbox, is composed of two sets of gears or pulleys that can change the diameter, connected by a chain or belt, and the gear ratio is controlled by changing the diameter of the gear or pulley.

Due to the physical limitations of belts and chains, it cannot be used in engines with high torque (but now Nissan has developed a continuously variable transmission that can withstand it), and it is commonly used in scooters (belt drive), small cars (chain drive), and go-karts (belt drive).

Advantages: no shift action, easy to drive, no frustration of shifting, high transmission efficiency (much higher than automatic transmission (about 85%), close to manual transmission), so fast acceleration and low fuel consumption.

Disadvantages: The failure rate is relatively high, the cost is relatively high, and it cannot be used in high-output engines.

Normally, some vehicles on the market are installed with an 8-speed manual automatic gearbox, while some vehicles are installed with CVT continuously variable transmission, many car owners will ask which is better between the two, in fact, there is no correct answer, because 8-speed manual automatic and CVT continuously variable transmission have their own benefits and characteristics.

Advantages and disadvantages of 8-speed automatic manual transmission:

1. For the 8-speed manual automatic gearbox, its biggest advantage is that it can not only operate the vehicle through automatic transmission, but also convert it to a manual transmission to operate the vehicle, which can also increase the driver's driving pleasure.

2. However, the later repair and maintenance cost of the 8-speed automatic manual transmission is higher, especially for the owners who do not often use manual transmission operation, and the purchase of automatic manual transmission is overkill.

Advantages and disadvantages of CVT continuously variable transmission::

1. Generally speaking, CVT continuously variable transmission is also a kind of automatic transmission, which has the advantage of simple structure and relatively small size, and can also freely change the transmission ratio.

2. Its disadvantage is that the response of the throttle is slow, and it also has the disadvantage of high fuel consumption.