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The 2009 Honda VFR1200F is the first motorcycle to use a DCT. [52] Honda has since expanded the application of the DCT to the Gold Wing model (model year 2018), the Africa Twin, the NT1100, Rebel 1100, and the NC700XD (model year 2012). In 2010, the Mitsubishi Fuso 6-speed Duonic transmission became the first DCT to be used in a truck. [53]
The VFR1200F is available with either a conventional constant-mesh manual transmission, with shaft-drive, or an automatic dual-clutch transmission (DCT). [17] The DCT version, known in North America as the VFR1200A or in other markets as the VFR1200D, has dual clutches, one operating 1st, 3rd and 5th gears, the other operating 2nd, 4th, and 6th ...
Honda was forced to invent their new system due to the vast array of patents on automatic transmission technology held by BorgWarner and others. Honda initially chose to integrate the transmission and engine block for its first application (in the N600) as in the Mini. The Hondamatic incorporated a lockup function, which Honda called a third ...
Other examples of semi-automatic transmissions based on hydraulic automatics were the Ford 3-speed Semi-Automatic Transmission used in the 1970–1971 Ford Maverick, early versions of Honda's 1972–1988 Hondamatic 2-speed and 3-speed transmissions, and the Daihatsu Diamatic 2-speed transmission used in the 1985–1991 Daihatsu Charade.
A direct-shift gearbox (DSG, German: Direktschaltgetriebe [1]) [2] [3] is an electronically controlled, dual-clutch, [2] multiple-shaft, automatic gearbox, in either a transaxle or traditional transmission layout (depending on engine/drive configuration), with automated clutch operation, and with fully-automatic [2] or semi-manual gear selection.
The DCT transmission received optimized first and second gears for smoother movement from a stop and at low speeds. Honda continues to invest in the DCT option and stated in 2020 it accounted for 47% of sales. The 2023 Africa Twin is unchanged except for new color options.
Schematic of a DCT. A dual-clutch transmission (DCT, sometimes referred to as a twin-clutch transmission, or double-clutch transmission) uses two separate clutches for odd and even gear sets. [37] The design is often similar to two separate manual transmissions with their respective clutches contained within one housing, and working as one unit.
Automated manual transmissions can be semi-automatic or fully-automatic in operation. Several different systems to automate the clutch and/or shifting have been used over the years, but they will generally use one of the following methods of actuation for the clutch and/or shifting: hydraulic or electro-hydraulic actuation, [12] electro-mechanical, [13] pneumatic, [6] [14] [15] electromagnetic ...