What is the Difference Between Dual Clutch and Automatic Transmission?

1 Answers
JustinAnn
07/29/25 12:00pm
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 hydraulic 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 20% more power in power connection compared to dual clutch, making dual clutch more fuel-efficient than automatic transmission. 4. Automatic transmission does not require pressing the clutch when shifting gears; it mainly relies on a hydraulic torque converter for hydraulic transmission to achieve gear shifting. Dual clutch, or DCT, has two sets of clutches and two input shafts, and its shifting method is realized through integrated electronic and hydraulic components in an electronic module.
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