What is a CVT Transmission, and how does it function? (Continuously variable transmission / Continuously variable transmission) What are the pros and cons of CVT Transmission ?….
CVT (Continuously Variable Transmission). A type of automatic transmission, is translated into our language. “Continuously Variable Transmission.” It is used extensively in modern cars.
CVT Transmission History
Although the CVT transmission gained popularity only recently, its design has been used for centuries. The first CVT was created by Leonardo DaVinci in 1490. However, it was officially patented in 1886 by Daimler and Benz. Zenit used a single model of the CVT transmission to compete in the 1910 hill-climb competitions. It was so popular that it was removed from competitions. It was first used in Variomatic transmissions manufactured by DAF, a Dutch automaker, in the 1950s. The CVT transmission was first popularized by Subaru at the end of the 1980s in its Justy mini-model. Today, nearly all major manufacturers, including Toyota, Nissan and Honda, have at least one model that has a CVT transmission. Many hybrid vehicles are now made with CVT transmissions.
How does a CVT transmission work?
A CVT transmission is much simpler than other transmissions. It is composed of two pulleys, one V-belt, and several microprocessors as well as sensors. Instead of fixed gears, there are pulleys. These pulleys have clearly defined upper and lower limits. Between these limits lies the theoretically unlimited gear range. The engine is connected to one of the pulleys and the other to its wheels. The pulleys are connected by a rubber or steel V-shaped drive belt. This pulley moves closer or farther depending on vehicle speed. The sensor calculates engine speed and rotational speed of wheels by pressing the accelerator pedal. It then transmits this information to the onboard computer. The pulley moves according to the power required. The other pulley adjusts accordingly. The best gear range is chosen for the driving conditions.
What are the advantages of CVT Transmission?
- – Compact design due to its simpler structures.
- – The gear shifts are more smooth than conventional transmissions.
- – They are more efficient because they adapt to changing speeds.
- They provide better performance on ramps.
What are the disadvantages of CVT Transmission Transmission?
- – Higher costs than traditional automatic transmissions
- It is less durable than traditional automatic transmissions because it can wear between the pulleys. (Average 150-200 000 km.
- – Part replacement and repair costs are more expensive.
- – Inability to accelerate at high speeds. They are therefore not recommended for use in performance and sports cars.
- The sound of the gearbox is distinct from conventional gearboxes. The sound is reduced by a lot of insulation material. However, this can make it uncomfortable for those who aren’t used to it.
Things to Consider when Buying a Secondhand Vehicle with CVT Transmission
Do your research before buying a used car that has a CVT transmission. You can avoid transmission problems and other unnecessary expenses by taking a test-drive and looking for the following symptoms.
- – Change between reverse, drive, and park modes. It is a sign that the transmission will soon fail if it takes longer than one second for it to slip.
- CVT transmissions make more noise than traditional transmissions. Humming or groaning should not be too loud. You should be aware of excessive noises while you are accelerating.
- – Vehicle acceleration must be continuous and uninterrupted. The CVT transmission may be defective if there is a sudden loss of power.
- – The vehicle should not jerk in gear changes.
- – A CVT transmission’s RPM should be constant. You should not notice any speed fluctuations when driving at a constant speed. This is a sign that something is wrong.
- If the transmission fluid becomes cloudy or you experience any of these symptoms, it could indicate that the CVT transmission is having problems.
Summary CVT transmissions are a smart choice if performance is not your primary concern.
Performance is your primary criterion, so you should choose vehicles with dual-clutch transmissions (DSG, EDC, DCT etc.). Manual mode is preferred.
