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What's the Difference Between Dual Clutch and Automatic Transmission?

1 Answers

LeJoy

07/30/25 4:54am

The differences between dual clutch and automatic transmission lie in the method of power connection, the gear transmission mechanism, and fuel consumption. 1. Power Connection Method: Dual clutch uses clutch plates to connect or disconnect the power between the engine and the transmission; automatic transmission uses a torque converter for power connection or disconnection. 2. Gear Transmission Mechanism: Dual clutch employs a manual transmission gear mechanism; automatic transmission uses an automatic transmission gear mechanism such as sun gears and planetary gears. Both gear mechanisms are controlled by solenoid valves. 3. Different Fuel Consumption: Automatic transmission consumes about 20% more power than dual clutch in terms of power connection, making dual clutch more fuel-efficient. Additional Information: Automatic transmission does not require pressing the clutch when shifting gears; it mainly relies on a torque converter for hydraulic transmission to achieve gear shifting. Dual clutch, or DCT, has two sets of clutches and two input shafts, and its gear shifting is realized through integrated electronic and hydraulic components controlled by an electronic module.

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