In a motor vehicle, the term powertrain or powerplant refers to the group of components that generate power and deliver it to the road surface, water, or air. This includes the engine, transmission, drive shafts, differentials, and the final drive (drive wheels, continuous track like with tanks or Caterpillar tractors, propeller, etc.). Sometimes "powertrain" is used to refer to simply the engine and transmission, including the other components only if they are integral to the transmission. In a carriage or wagon, running gear designates the wheels and axles in distinction from the body.
A motor vehicle's driveline consists of the parts of the powertrain excluding the engine and transmission. It is the portion of a vehicle, after the transmission, that changes depending on whether a vehicle is front-wheel, rear-wheel, or four-wheel drive, or less-common six-wheel or eight-wheel drive.
In a wider sense, the power-train includes all of its components used to transform stored (chemical, solar, nuclear, kinetic, potential, etc.) energy into kinetic energy for propulsion purposes. This includes the utilization of multiple power sources and non–wheel-based vehicles.
Powertrain development for diesel engines involves the following trends: modular injection, electronic valve control, exhaust gas recirculation (EGR), and advanced combustion. Spark ignition engine development trends include: Fuel injection, and more recently, Gasoline direct injection, and improving Volumetric efficiency by using 4 valves per cylinder, Variable valve timing, Variable length intake manifolds, and turbocharging. Attention to new fuel qualities (no sulphur and aromates) allow new combustion concepts. These promise to combine clean combustion with high efficiency. So-called "combined combustion systems" (CCV) (Volkswagen, 2003) or "diesotto" cycles (Mercedes-Benz) are based on synthetic fuels (synthetic diesel, biomass to liquid (BTL) or gas to liquid (GTL)).
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. In turn these requirements have led to designs involving higher internal pressures, greater instantaneous forces, and increased complexity of design and mechanical operation. The resulting designs in turn impose significantly more severe requirements on parts shape and dimension; and material surface flatness, waviness, roughness, and porosity. Quality control over these parameters is achieved through metrology technology applied to all of the steps in powertrain manufacturing processes.
Frames and powertrains
Later, a body (sometimes referred to as "coachwork"), which is usually not necessary for integrity of the structure, is built on the chassis to complete the vehicle. Commercial vehicle manufacturers may have "chassis only" and "cowl and chassis" versions that can be outfitted with specialized bodies. These include buses, motor homes, fire engines, ambulances, etc.
The frame plus the body makes a glider (a vehicle without a drivetrain).
- New powertrain technologies conference, 27 and 28- March-2007.
- Honda F1 Race Car Frame.
- Drivetrain Quiz
- HIL Test Bench (Delphi Motor) Technical Paper: A Closed-Loop Drive-train Model
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Powertrain — steht für: einen Begriff im Bereich Antriebsstrang einen Markennamen von General Motors im Bereich Motoren und Getriebe Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort bezeichneter Begri … Deutsch Wikipedia
powertrain — [pou′ər trān΄] n. DRIVETRAIN * * * power train n. An assembly of gears and associated parts by which power is transmitted from an engine to a driving axle. * * * … Universalium
powertrain — [pou′ər trān΄] n. DRIVETRAIN … English World dictionary
powertrain — An engine and transmission combination. Sometimes includes the drive shaft, and drive axle. See drivetrain direct drive powertrain … Dictionary of automotive terms
powertrain — noun The group of components in a vehicle that generate power and deliver it to the road surface, water, or air. Syn: drivetrain … Wiktionary
powertrain — /ˈpaʊətreɪn/ (say powuhtrayn) noun (in a motor vehicle) all the components required to rotate the driving wheels, including the engine, clutch (or torque converter), transmission, drive shaft, and axles. Also, power train … Australian English dictionary
powertrain — powˈertrain noun (engineering) (in a motor vehicle) the drive transmitting sequence represented by the engine, transmission, and parts connecting gearbox to wheel • • • Main Entry: ↑power … Useful english dictionary
Powertrain Ltd — was a British company based in Birmingham which designed, manufactured and marketed car engines and transmissions. It was a subsidiary of Phoenix Venture Holdings and a sister company to MG Rover.HistoryThe company was placed into administration… … Wikipedia
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