What is a CVT transmission compared to a normal automatic transmission? There are advantages – disadvantages or different? Today we will take you to find the answer.
because of the presentcarMany new models have begun to switch to CVT automatic transmissions, which may make many people wonder what CVT gears are, and if anyone doesn’t know yet, we will take you to get to know CVT gears that are different fromautomatic transmissionHow much is the original including requiring special care or not
What is a CVT transmission?
CVT or Continuously Variable Transmission is a type of automatic transmission that has a variable speed ratio. And although CVT gears have only recently become popular, But the concept of a CVT gearbox has been around since 1490 by Leonardo DaVinci and was officially patented in 1886 by a luxury car manufacturer. before starting to gain popularity in the latter especially small and medium sized cars
The principle of operation of the CVT transmission mainly consists of pulleys or pulleys (Pulley) 2 is the drive pulley (Drive Pulley) connected to the engine. and the driven pulley that is connected to the drive shaft The chain belt (Steel Belt) behavior is similar to a general bicycle chain without gears. Only the two pulley axes of the CVT system can move in and out. To reduce or increase the diameter of the belt on each side for changing gear ratios in normal automatic transmissions.
Advantages of CVT gears
Due to the CVT automatic transmission that uses 2 pulleys, the center of the axle connected by the chain belt can be enlarged to adjust the speed ratio instead of the gear set continuously without interruption. So it works seamlessly. (Due to the need to change the gears periodically according to the vehicle speed) and less power loss. save more fuel
In addition, the CVT gearbox is compact compared to a normal automatic transmission. because of few parts It does not take up much space for installation. Therefore, the cabin can be designed to be more spacious. Or use it to install in a small car is also easier.
Disadvantages of CVT transmissions
For CVT transmissions which have few moving parts including a simpler design than normal automatic transmission Therefore, there are limitations in terms of use. Because the purpose of most CVT gears is not designed to handle harsh driving or heavy use. Therefore, if it is not necessary, it should be a gentle ride. To help extend the service life of the CVT transmission
Common CVT Transmission Problems
By the nature of the CVT transmission, which is designed for general use. But if it is fully used like a normal automatic transmission, it may cause the CVT gear to deteriorate or cause problems faster. The common symptoms of CVT transmission are as follows:
1. High heat in the transmission system.
Due to the operation of the CVT gear which uses 2 pulleys and the belt must be spinning all the time. Therefore, it is necessary to rely on the cooling system for cooling. If such a system has a problem, it will cause the CVT gearbox to overheat. which is observed from the smell of burning inside the car
2. Leaking gear oil
The CVT transmission system is the same as a normal transmission system. is still needing gear oil to lubricate If the transmission fluid is left out, it will cause problems such as a leak, resulting in the transmission system responds slower. Including if the transmission oil is contaminated, it will cause the CVT transmission to run smoothly, not accelerate or jerk. If the car has these symptoms, it should be urgently taken to check the transmission fluid.
3. Loss of power and speed
This problematic CVT transmission jerks and vibrates when accelerating. especially when there is high heat in the system The car will noticeably lose power.
4. Durability
Compared to a normal automatic transmission, the CVT transmission has fewer parts and must work all the time. Therefore, it has less durability or a shorter lifespan naturally. But nowadays, automakers have developed a CVT gear that is more durable than before. Don’t worry too much. but may have to adjust driving behavior to match the gear used only
Because each type of gear has different advantages – disadvantages, which CVT gears are useful in many aspects, such as smooth driving. provide continuous acceleration with little power loss save fuel But users must understand and use it carefully. It will help prolong the service life of the CVT transmission.
Thanks for the information from: caranddriver.com, rxmechanic.com, motorbiscuit.com