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The powertrain consists of the prime mover (e.g. an internal combustion engine and/or one or more traction motors) and the drivetrain - all of the components that convert the prime mover's power into movement of the vehicle (e.g. the transmission, driveshafts, differential and axles); [4] [5] whereas the drivetrain does not include the power ...
The manufacturing of powertrain components and systems is important to industry, including the automotive and other vehicle sectors. Competitiveness drives companies to engineer and produce powertrain systems that over time are more economical to manufacture, higher in product quality and reliability, higher in performance, more fuel efficient, less polluting, and longer in life expectancy.
A two-wheel-drive bicycle with the front wheel propelled by the arms and the rear wheel by the legs (demonstrated by its Dutch inventor on Polygoon, 1942). For two-wheeled vehicles such as motorcycles and bicycles, the term is used to describe vehicles that can power the front as well as the back wheel.
These, particularly the Quattro, would extensively develop this drivetrain with the use of viscous couplings and differentials to provide a safe and drivable car. The first off-road / on-road hybrids such as the Range Rover also chose the permanent all-wheel-drive system rather than manual selection.
The aftermarket solution is used when the user delivers glider (rolling chassis) and the hybrid (two engines) or all-electric (only an electric motor) powertrain kit to the automaker and receives the vehicle with the tech installed. An (electric or hybrid) powertrain can be added to a glider [78] by an aftermarket installer.
A four-wheel drive, also called 4×4 ("four by four") or 4WD, is a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case providing an additional output drive shaft and, in many instances, additional gear ranges .
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Typical American 6×4 tractor unit. A 6×4 or six-by-four is a vehicle with three axles, with a drivetrain delivering power to wheels at the ends of two of them. [1] It is a form of four-wheel drive [2] but not one of all-wheel drive.