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What are the common types of automatic transmissions?

3 Answers

MacLevi

09/05/25 5:17am

Automatic transmissions, also known as automatic gearboxes, can be categorized into four common types based on their working principles: Hydraulic Automatic Transmission (AT), Continuously Variable Transmission (CVT), Automated Manual Transmission (AMT), and Dual-Clutch Transmission (DCT). Introduction to Hydraulic Automatic Transmission: 1. Hydraulic automatic transmissions achieve gear shifting through a combination of hydraulic power transmission and planetary gears. 2. They typically consist of components such as a torque converter, planetary gear set, shift actuators, shift control system, and shift operation mechanism.

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HarleyDella

09/17/25 5:44am

I've driven various cars and am quite familiar with automatic transmissions. The most common is the hydraulic automatic transmission (AT), like the one used in Toyota Camry, which relies on hydraulic pressure for gear shifts and offers good smoothness, making it suitable for daily driving. Next is the CVT (Continuously Variable Transmission), commonly found in cars like Nissan Teana, which uses a steel belt for power transmission, providing jerk-free acceleration and good fuel efficiency. Dual-clutch transmissions (DCT) are more common in European cars, such as the DSG in Volkswagen Golf, featuring two clutches for lightning-fast gear changes. There's also the automated manual transmission (AMT), used in some budget models like Fiat 500, which is simple in structure but not as smooth. Having driven so many, I find CVT the most comfortable for city driving, while DCT is better suited for highways. Overall, it's important to test drive and see if the transmission suits your preferences when choosing a car.

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MacJocelyn

10/31/25 6:13am

Car enthusiasts often discuss this topic at gatherings. The Hydraulic Automatic Transmission (AT) is the most common, found in most SUVs and sedans. It operates via a torque converter, providing smooth gear shifts, reliability, but slightly higher fuel consumption. The Continuously Variable Transmission (CVT) is increasingly popular in hybrid vehicles, featuring no fixed gears for smoother acceleration. The Dual-Clutch Transmission (DCT) is renowned for its sporty performance, with Porsche sports cars being notably fast. Lastly, the Automated Manual Transmission (AMT) is common in budget cars, offering low cost but occasional jerks. I recommend checking the manual or online forums for more details, as transmission choice significantly impacts the overall driving experience.

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