Not all gearboxes are made equal, and since they were introduced, they have gone through some tremendous changes. There are primarily two types of vehicle transmissions: manual and automatic. The automatic transmission has taken off as the preferred choice largely because of the convenience it offers in doing away with the three-pedal shift. While automatic transmissions may only seem to offer a gear selection advantage, they possess different characteristics which makes them suitable for different applications.
Torque Converter
The torque converter, also known as the conventional automatic transmission, happens to be the oldest gearbox system and employs the use of hydraulic fluid to transfer power. This gearbox system uses a design with the turbine and impeller, which inadvertently leads to a lot of transmission loss and poor fuel efficiency.
While the torque converter suffers in performance and efficiency, it does make up the lost ground in reliability and is also very smooth. Modern torque converters, however, have ironed out the kinks with previous models that reduce transmission losses and boost its fuel economy.
Automated Manual Transmission (AMT)
The automated manual transmission is essentially a semi-automatic gearbox because it uses the same transmission as the manual system without the need to clutch when changing gears. The AMT is fuel-efficient and affordable, making it a popular choice for many car manufacturers. The kit can be added to any regular manual transmission vehicle to make it a low-cost alternative. Its affordability and convenience make the AMT available in affordable automobiles and a few expensive ones as well.
Continuous Variable Transmission (CVT)
A unique clutchless gearbox in its own right, the continuous variable transmission (CVT) uses a continuous variable drive ratio. This allows the gearbox to control engine speed with no pauses while switching gears for a smooth ride. Unlike the manual transmission, the CVT activates automatically and does not use the clutch pedal. Another advantage of this gearbox system is its ability to maintain a constant speed whilst changing gears for optimal fuel economy.
Dual Clutch Transmission (DCT)
The dual-clutch transmission is the most advanced gearbox available today. It works on the same principle as the AMT but with a two-clutch mechanism. The dual-clutch mechanism makes the DCT incredibly fast in switching gears and is highly responsive. Like all automatic gearboxes, however, these also come with the conventional P, R, N and D gear switchers with no clutch pedal. The DCT gearbox gear switching is much faster and smoother than the single-clutch AMT but takes a hit on fuel efficiency and breaks down more often.
Contact a local automatic transmission service to learn more.
Share29 January 2020
Cars are wonderful things. Unfortunately, they also have lots of technology and moving parts which can go wrong if they are not properly cared for. We hope that this blog will give you all of the info you need to service your car. We will be looking at subjects such as how to change the oil in an engine, how to replace a worn brake pad, and how to check the electrical systems on your vehicle. Everything you read on this page has been written by keen amateurs who have a really big passion for servicing their autos. We hope you love what you find here.
