What are the advantages and disadvantages of various transmissions?

In the selection of cars, not inevitably in the choice of manual or automatic models and agonized, in fact, a variety of transmissions have their own advantages and disadvantages. Suitable for their own is the best, according to the owner of the actual situation to make a choice.

Manual gear/MT

The driver needs to control different gears in the transmission through the lever to change the speed ratio.

Manual gearboxes are complicated to operate and difficult to start, making them difficult to maneuver in a short period of time and requiring some time to get used to. But for veteran drivers, a manual is more fun to drive and saves gas.

Five-speed manual

Representative models: the vast majority of family sedans are equipped with

Pros: low cost, maintenance economy, convenient

Disadvantages: the common problem of manual transmissions: traffic jams are very tired, the need for a certain degree of proficiency in the operation of the

Five-speed manual models are still the most dominant models of the car market, the technology of this transmission is mature, maintenance costs are low, and the transmission is not a good choice. The technology of this kind of transmission is mature, the maintenance cost is low, and the fuel economy is better than that of the general automatic model if you are skillful in operation, and the power play is more in your own hands. However, manual models in the driving needs to be more skillful driving techniques, encountering congestion and the need to frequently shift gears will be very tired, "hand tide" friends will often because of poor control of the clutch and repeatedly stalled, and if you can not grasp the timing of the gear shift, the oil away from the bad with the fuel economy can not be guaranteed.

6MT

Representative models: Pentium B70

Advantages: more precise control of the speed, which is conducive to improving acceleration and economy

Disadvantages: the operation is more cumbersome, due to traffic jams or poor technology to bring more trouble

Ordinary consumers recognize the 6MT as a "new thing". "I'm afraid most of them are from Pentium B70, this transmission has a forward gear, the transmission ratio between adjacent gears will be narrowed, simply put is that each gear to adapt to the narrowing of the speed range of the car, the control of the rotational speed will be more accurate when shifting gears, accelerating the speed of the speed of the rise more quickly, the fuel economy is also a little bit better. However, the cumbersome operation of an additional gear increases, making it difficult to demonstrate its value in the city. In addition, the 6MT transmission is more effective in controlling the speed of a high-revving engine with a steeper torque curve, so it's not necessary to use the 6MT transmission in a typical family sedan.

Automatic/AT

Through the engine speed and vehicle speed sensors installed in the car, the ECU calculates and sends out commands, and the electromagnetic device manipulates the meshing of different gears in the gearbox to change the speed ratio.

Automatics are easy to operate and quick to start, and are suitable for drivers who are afraid of trouble and do not have a high desire for control. However, it is more expensive in terms of fuel consumption.

4AT, 5AT

Representative models: Cadenza, etc.

Advantages: operation is much more convenient than the manual gearbox models

Disadvantages: outdated technology, economy, power is not good

Commonly, there are two types of automatic transmissions, 4-speed and 5-speed, as opposed to the manual transmission, automatic transmissions can make the driving become simple and convenient, easy for newcomers, but its power and economy are not good. However, its power and economy are lagging behind the manual transmission, and the cost of construction and maintenance costs are higher than the manual transmission, the economy is a major drawback. At present, the manual models are emerging, and the traditional automatic transmission has been abandoned by more and more models, and gradually be replaced by the trend.

Manual AT/MT

The same automatic transmission as described above, but with the addition of the ability to manually force an electromagnetic device.

Manual-automatic models can maximize the compatibility of the advantages of the above two transmissions, but the problem of "fuel consumption" is still not solved.

Representative models: Minri, etc.

Advantages: In addition to the advantages of the automatic box, there is also the ability to manually control the car, which makes it more fun to drive and more flexible to maneuver, and provides better fuel economy

Disadvantages: Fuel consumption, manual mode is not fully manual, limited by sensors, and higher cost and maintenance

The manual transmissions on the market also come in 4, 5, and 6-speed variants. The manual mode is more flexible than the automatic transmission, as it allows you to manually downshift when going uphill and overtaking a vehicle that needs high torque support, and to control the speed of the vehicle when going downhill through the gears, so the more gears you have, the more precise the control will be, and the better the fuel economy. However, the manual transmission also has the problem of cost, the price of car models tend to be higher, the future maintenance costs are more than the general models.

CVT

The CVT transmits power by varying the speed of the engine to drive the centrifugal wheel and changing the friction of the drive belt. The gearshift is controlled in no segments by the size of the throttle.

Representative model: New Generation of Celestial Ocean

Advantages: better driving smoothness, acceleration, economy and emission

Disadvantages: fewer application models, high cost

The outstanding features of CVT are that it does not have the stuttering feeling that occurs when shifting gears of traditional automatic transmissions, has a better continuity in acceleration, and is as simple to operate as an automatic, and has a higher fuel Economy is also higher, the disadvantage is the same price and maintenance costs are higher. At the same time, the power of the vehicle is greatly affected, and there is a feeling of "meat" when starting and accelerating. Currently on the market with CVT transmission models are not many, the new Fit also canceled this configuration, seems to be a little high and low meaning.

DSG Dual Clutch Transmission

Representative: Maiten

Pros: very good acceleration continuity, no gearshift frustration

Weaknesses: has just entered the domestic market, the effect of the use of the test

DSG dual-clutch transmission is in the most attention of the technology, which is the system mainly consists of a two sets of dual-clutch plate collection of dual-clutch transmission. Its system mainly consists of a double clutch device assembled by two sets of clutch plates, a solid shaft and its outer sleeve combined into a double drive shaft mechanism, as well as two sets of gears to control the odd and even numbered gears. Throughout the gearshift process, when one set of gears is outputting power, the other set of gears is already on standby, and the DSG always maintains one set of gears outputting power without any interruption in power transmission, which ensures the continuity of acceleration and the absence of stuttering during the gearshift process. More efficient use of engine power also reduces fuel consumption. This transmission combines the handling and economy of a manual gear with the convenience of an automatic gear, making it the most advanced transmission in China.

The above are the common types of transmissions, they have their own advantages and disadvantages, the owner can be based on the weight of their own needs to determine which one is the most suitable for them, to apply an old saying: there is no best, only the most suitable.

Touguan this car is also good, on behalf of the Volkswagen Group's quality of car manufacturing, purely hand-beaten, looking at the owner to adopt!