Ⅰ. Volkswagen-DSG dual-clutch transmission Many people's understanding of dual-clutch transmissions also starts from DSG. Of course, Volkswagen's "dual-clutch" is also more representative. Most of its imported cars are also equipped with DSG, such as Golf GTI, EOS, Magotan and Scirocco. However, Volkswagen has two DSG dual-clutch transmissions. The internal codes of Volkswagen are DQ250 and DQ200. According to intuitive data analysis, the DSG code-named DQ250 has six gears and can withstand a maximum torque of 350NM, mainly used for high-speed transmission. Displacement or main handling models, such as the Golf GTI and the upcoming 09 Magotan; while the DQ200 is a seven-speed dual-clutch transmission that can withstand a maximum torque of 250NM, and is mainly used in low- and medium-displacement models, which will be listed in the following half of the year Golf 6, Sagitar and so on. Ⅱ. Volvo-POWERSHIFT dual-clutch transmission Unlike the DSG transmission, a dry dual clutch auto transmission used by Volkswagen, POWERSHIFT uses a wet dual-clutch. The clutch plates are soaked in engine oil to cool it down. The clutch can transmit power to any one of the six gears. The computer-controlled grip judges the driver's shifting intention according to the car speed and rotation speed. The next gear can be selected in advance to achieve rapid shifting of gears. https://www.kgcclutch.com/products/mercedes-benz-chb160-clutch-actuator.html