What Types of Transmissions Do Cars Have?
2 Answers
Automobile transmissions can be classified into Hydraulic Automatic Transmission (AT), Continuously Variable Transmission (CVT), Automated Manual Transmission (AMT), and Dual-Clutch Transmission (DSG). The details are as follows: 1. AT consists of a torque converter, planetary gears, and a hydraulic control system, achieving variable speed and torque through hydraulic transmission and gear combinations. The torque converter is the most critical component, comprising a pump wheel, turbine, and guide wheel, which functions to transmit torque and act as a clutch. 2. Compared to AT, CVT eliminates the complex and bulky gear combination transmission, instead using two sets of pulleys. Speed variation is achieved by altering the contact radius of the belt between the driving and driven pulleys. Since gear transmission is omitted, the transmission ratio can be freely adjusted, resulting in smoother shifting without sudden gear jumps. 3. AMT, like AT, is a stepped automatic transmission. Based on a conventional manual transmission, it incorporates a microprocessor-controlled electric device that replaces the manual operations of clutch engagement/disengagement, gear selection, and shifting, enabling automatic gear changes. 4. DSG transmissions are distinctly different from traditional automatic transmissions, as DSG does not use a hydraulic torque converter from the outset. This transmission is not produced based on the conventional automatic transmission concept. The engineers who designed DSG embarked on an innovative technological path, ingeniously combining the flexibility of manual transmissions with the convenience of traditional automatic transmissions.
I know transmissions best. Manual transmissions (MT) offer a strong sense of control, especially fun on mountain roads. Automatic transmissions (AT) are the most common, making city commutes effortless. Continuously variable transmissions (CVT) are smooth and fuel-efficient, ideal for long-distance comfort. Dual-clutch transmissions (DCT) shift lightning-fast, the top choice for performance cars. Semi-automatic AMTs combine the benefits of manual and automatic but are budget-friendly with noticeable jerkiness. Manuals save fuel but can be tiring in city traffic with clutch use. Automatics are comfortable but less fuel-efficient. CVTs are smooth in traffic but feel sluggish during acceleration. DCTs are fast but costly to maintain and prone to jerking. With the rise of EVs, some cars now use single-speed direct-drive transmissions—simple and efficient. Choose based on driving habits: manual for enthusiasts, automatic or CVT for daily commuting, DCT for thrill-seekers. Remember, regular transmission fluid checks extend lifespan.
