1. Manual gear
Also known as MT, it is the earliest and most widely used. Since the birth of the car, it has been a manual gearbox, which has been used until now, which is enough to show that it has good reliability and stability. The structure is simple, and the shifting fork is controlled by the shift lever to shift the gears of several different sizes to realize the shifting, and the principle is like a shift bicycle. Maintenance and maintenance costs are low, usually no maintenance, even if the transmission oil does not change, there is no problem, the failure rate is low, basically no problem, even if the fault occurs, the maintenance cost is very low. High transmission efficiency and good fuel economy. The only downside is that the operation is troublesome. At all times, I have to think about clutching and shifting. The new hand is slow, and improper operation will ablate the clutch plate.
2. AT gearbox
With the development of technology, the AT gearbox has been produced, and no one needs to manipulate the shifting gear. It is only necessary to control the forward or backward movement, and the operation is simple. It consists of a torque converter, a clutch and a brake. The structure is complex and requires advanced technology and intelligent shifting program support. It mainly relies on the hydraulic transmission power of the transmission oil. The gear shift is based on the planetary gear set. Its application is also very extensive, all major automobile manufacturers are using, reliability and stability are also good, transmission efficiency is slightly lower, fuel consumption is high, the transmission oil requirements are high, need to be replaced on time, if the transmission is damaged, the maintenance cost is better high.
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3. CVT gearbox
Also known as infinitely variable speed. The drive wheel and the driven wheel are both tapered and connected by a steel belt. It has no fixed gear ratio, the transmission ratio is continuously variable, the shift is smooth, and the fuel consumption is very low. Ideal for home use, it is not suitable for high torque output due to the use of steel belt drives.
4. Double clutch gearbox
It is a combination of two manual transmissions, with the addition of an automatic shifting mechanism, which is essentially a manual transmission. It has the advantages of a manual gearbox. High transmission efficiency, fuel saving, fast shifting speed, and the advantages of automatic transmission, easy to operate. The biggest shortcoming at present is that the gearbox is prone to overheating, and the frequent driving on the congested road section is more serious and the reliability is not too high.
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