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Encyclopedia > Automobile layout

In automobile design layout is the place where both the engine and driven wheels are. It has been suggested that this article or section be merged into Automotive design. ... An engine is something that produces some effect from a given input. ...


Types

front-engine, front-wheel drive, layout places both the engine and driven wheels at the front of the vehicle. This layout is typically chosen for its compact packaging - that is, it takes up very little space, allowing the rest of the vehicle to be designed more flexibly. In contrast with the FR layout, the FF layout eliminates the need for a central tunnel or a higher chassis clearance to accommodate a driveshaft providing power to the rear wheels. Like the RR and MR layouts, it places the heavy engine over the drive wheels which aids traction. As the steered wheels are also the driven wheels, FF cars are generally considered superior to FR cars in conditions such as snow, mud, gravel or wet tarmac. However, powerful cars rarely use the FF layout because weight transference under acceleration unloads the front wheels and sharply reduces their grip, effectively putting a cap on the amount of horsepower which could realistically be utilized. Electronic traction control can avoid wheelspin but largely negates the benefit of extra power. A front-mounted engine describes the placement of an automobile engine in front of or on the front axle. ... Front-wheel drive is the most common form of engine/transmission layout used in modern passenger cars, where the engine drives the front wheels. ... An engine is something that produces some effect from a given input. ... In automobile design, an FR, or front-engine, rear wheel drive means a layout where the engine is in the front of the vehicle and drive wheels at the rear. ... Cardan driveshaft with universal joints A driveshaft or driving shaft or Cardan shaft is a mechanical device for transferring power from the engine or motor to the point where useful work is applied. ... In Automobile design, an RR, or Rear-engine, Rear wheel drive, layout places both the engine and drive wheels at the rear of the vehicle. ... It has been suggested that this article or section be merged into Mid-engine design . ...


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