Stepless CVT gearbox has a relatively simple design and operation, rarely encountering technical problems during use.
What is stepless gearbox?
Stepless gearbox, variable-speed gearbox, also known as CVT gearbox, unlike traditional gearboxes, stepless gearboxes without gear pairs that operate based on pulley systems and transmission belts Allows stepless and continuous change.
Structure of a CVT gearbox
Most CVT gearboxes have main components such as metal belts or high-performance rubber, two semi-conical shaped pulleys, pulleys with variable input attached to the motor shaft. , pulley output system leading to wheels. Stepless gearbox CVT cars are also equipped with processors and sensors. The difference between a gearbox and a stepless gearbox is a gearbox with levels from 1 to 6, while a stepless gearbox has no gearbox.
In Vietnam market, there are many models using stepless gearbox such as Nissan Juke, Toyota Corolla Altis, Honda City, Honda Odyssey, Infiniti QX 60 … Toyota Corolla Altis with 1.8V version uses the Toyota Altis stepless transmission is one of the attractive cars on the Vietnamese market next to the Honda City gearbox.
In terms of how it works, a continuously variable gearbox has the same usage with an automatic gearbox, the same symbols and a gear shift.
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Advantages of stepless gearbox
Stepless CVT gearbox has a relatively simple design and operation, rarely encountering technical problems during use. Gearbox repair, warranty, and fuel consumption costs are lower than automatic transmissions.
Stepless gearbox CVT simple operation
With the ability to change the optimum gear ratio at all speed ranges, the CVT gearbox helps the car to save more fuel than automatic gearboxes with conventional gears. To be effective, drivers need to master the technique when driving a car to shift gears smoothly, avoiding throttle.
Another advantage of the automotive stepless gearbox is the simple design and operation principle, so the driver can operate the car in a simple way. Vehicle noise is also reduced (in some well-equipped vehicles) with optimal revs at all speeds. Reduced power loss compared to conventional automatic transmissions, so that the car engine accelerates faster.
Disadvantages of stepless gearbox
The downside of the CVT gearbox mentioned by the user is that it does not tolerate high torque, making it difficult to feel the driver feeling when shifting. The use of a belt to drive is also a major drawback of a variable gearbox when the belt can slip or stretch after use, reducing the performance of the car engine.
- Covered under the car
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The downside of the continuously variable transmission is the belt system
It is also because of this drawback that the gearbox is only suitable for small cars, not prioritizing towing capacity and large load. If not equipped with a good soundproof system, the gearbox makes a loud noise. The advice of experts is that after 50,000 km, users need to replace the belt system to ensure the system works properly.
The oil life of stepless gearboxes is also lower than regular gearboxes and needs to be replaced regularly, note that you need to replace the correct type of oil.