Is the DCT Transmission Wet-Type?
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DCT stands for Dual Clutch Transmission assembly, which is referred to as DCT regardless of whether it is dry or wet. However, the type of clutch is categorized into dry and wet. Here is an introduction to DCT transmission: DCT Transmission: The main body of a DCT transmission is a manual transmission, which can also be considered an upgraded version of a manual transmission. A DCT transmission has two sets of clutches, primarily responsible for shifting odd and even gears (including neutral gear), respectively. During operation, these two sets of clutch plates alternate to complete the upshifting and downshifting tasks of the DCT transmission. Generates a large amount of heat: During the shifting process, the friction plates of the two clutches generate significant heat due to extensive friction. This is especially true when driving in congested urban areas, where stop-and-go conditions frequently occur, leading to a high frequency of gear shifts. As a result, the vehicle's transmission clutch needs to work continuously, causing the DCT transmission to produce a substantial amount of heat. Here is an introduction to dry and wet clutches: Dry Clutch: Similar to the clutch in traditional manual transmission cars, the friction plates are cooled by air. Wet Clutch: Like the clutch in motorcycles, it has a multi-plate structure, immersed in engine oil, and cooled by oil. During clutch semi-engagement, the heat generation is enormous. Therefore, dry dual-clutch transmissions are prone to severe failures in congested urban environments due to overheating caused by insufficient heat dissipation. In contrast, wet dual-clutch transmissions do not face the risk of overheating, offering much better reliability.
