Is dsg automatic or manual
The twin-clutch transmission, also known as the Direct Shift Gearbox ( DSG) or dual-clutch transmission, is an automated transmission that can change gears faster than any other geared transmission. Twin-clutch transmissions deliver more power and better control than a traditional automatic transmission and faster performance than a manual transmission. Originally marketed by Volkswagen as the DSG and Audi as the S- Tronic, twin-clutch transmissions are now being offered by several automakers, including Nissan, Mitsubishi, BMW and Porsche. Before DSG: The SMT The twin clutch/ DSG is a development of the sequential manual transmission ( SMT which is essentially a fully-automated manual transmission with a computer-controlled clutch, intended to deliver stick-shift performance with automatic convenience. The advantage of an SMT is that it uses a solid coupling (the clutch which provides a direct connection between engine and transmission and allows 100% of the engine's power to be transmitted to the wheels. ( Traditional automatics use a fluid coupling called a torque converter, which allows some slippage.) The chief drawback of the SMT is the same as that of a manual: In order to change gears, the engine and transmission must be disconnected, interrupting the flow of power. Twin-clutch: Solving the SMT's problems The twin-clutch transmission was designed to eliminate the lag inherent in SMTs and manuals. The twin-clutch transmission is essentially two separate transmissions with a pair of clutches between them. One transmission provides odd-numbered speeds (ie first, third and fifth gear the other provides even-numbered speeds (second, fourth and sixth). When the car starts out, the odd gearbox is in first gear and the even gearbox is in second gear. The clutch engages the odd gearbox and the car starts out in first gear. When it's time to change gears, the.
This article is about the Volkswagen Group dual-clutch transmissions. For dual-clutch transmissions in general, see Dual-clutch transmission. Part-cutaway view of the Volkswagen Group 6-speed Direct- Shift Gearbox. The concentric multi-plate clutches have been sectioned, along with the mechatronics module. This also shows the additional power take-off for distributing torque to the rear axle for four-wheel drive applications. - View this image with annotations Schematic diagram of a dual clutch transmission Dual-clutch gearbox: M: Motor A: Primary drive B: Double Clutch C: shaft D: main shaft, even gears E: main shaft, odd gears F: Output A direct-shift gearbox ( German: Direkt- Schalt- Getriebe[1] commonly abbreviated to DSG,[2][3] is an electronically controlled dual-clutch[2] multiple-shaft manual gearbox, in a transaxle design – without a conventional clutch pedal,[4] and with full automatic,[2] or semi-manual control. The first actual dual-clutch transmissions derived from Porsche in-house development for 962 racing cars in the 1980s. In simple terms, a DSG is two separate manual gearboxes (and clutches contained within one housing, and working as one unit.[2][3][5] It was designed by Borg Warner,[4] and is licensed to the Volkswagen Group, with support by IAV Gmb H.[citation needed] By using two independent clutches,[2][5] a DSG can achieve faster shift times,[2][5] and eliminates the torque converter of a conventional epicyclic automatic transmission.[2] Contents 1 Overview 1.1 Transverse DSG 1.2 Audi longitudinal DSG 2 List of DSG variants 3 Operational introduction 3.1 DSG controls P N D mode S mode R Manual mode Paddle shifters 4 Advantages and disadvantages 5 Applications 5.1 Audi 5.2 Bugatti 5.3 SEAT 5.4 Škoda 5.5 Volkswagen Passenger Cars 5.6 Volkswagen Commercial Vehicles 6 Problems and recalls of DSG-equipped.