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Front-engine
In automotive design, a front-engine, front-wheel-drive (FWD) layout, or FF layout, places both the internal combustion engine and driven roadwheels at the front of the vehicle. Usage implications Historically, this designation was used regardless of whether the entire engine was behind the front axle line. In recent times, the manufacturers of some cars have added to the designation with the term '' front-mid'' which describes a car in which the engine is in front of the passenger compartment but behind the front axle. The engine positions of most pre– World-War-II cars are ''front-mid'' or on the front axle. This layout is the most traditional form and remains a popular, practical design. The engine, which takes up a great deal of space, is packaged in a location passengers and luggage typically would not use. The main deficit is weight distribution—the heaviest component is at one end of the vehicle. Car handling is not ideal, but usually predictable. In contrast wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Front-engine, Rear-wheel-drive Layout
In automotive design, a FR, or front-engine, rear-wheel-drive layout is one where the engine is located at the front of the vehicle and driven wheels are located at the rear via a drive shaft. This was the traditional automobile layout for most of the 20th century. Modern designs commonly use the front-engine, front-wheel-drive layout (FF). It is also used in high-floor buses and school buses. Front mid-engine, rear-wheel-drive layout In automotive design, a front mid-engine, rear-wheel-drive layout (FMR) is one that places the engine in the front, with the rear wheels of vehicle being driven. In contrast to the front-engine, rear-wheel-drive layout (FR), the engine is pushed back far enough that its center of mass is to the rear of the front axle. This aids in weight distribution and reduces the moment of inertia, improving the vehicle's handling. The mechanical layout of an FMR is substantially the same as an FR car. Some models of the same vehicle can be classified as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Audi Quattro
The Audi Quattro is a road and rally car, produced by the German automobile manufacturer Audi, part of the Volkswagen Group. It was first shown at the 1980 Geneva Motor Show on 3 March. Production continued through 1991. Background The word ''quattro'' is derived from the Italian word for "four" to represent the fact that the vehicle delivers power to all four wheels. The name has also been used by Audi to refer to the quattro four-wheel-drive system, or any four-wheel-drive version of an Audi model. The original Quattro model is also commonly referred to as the Ur-Quattro - the " Ur-" (German for "primordial", "original", or "first of its kind") is an augmentative prefix. The idea of such a car came from the Audi engineer Jörg Bensinger. The Audi Quattro was the first rally car to take advantage of the then-recently changed rules that allowed the use of four-wheel drive in competition racing. It won consecutive competitions for the next two years. To commemorate the succe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear Mid-engine, Rear-wheel-drive Layout
In automotive design, an RMR, or rear mid-engine, rear-wheel-drive layout is one in which the rear wheels are driven by an engine placed with its center of gravity in front of the rear axle, and thus right behind the passenger compartment. Nowadays more frequently called 'RMR', to acknowledge that certain sporty or performance focused front-engined cars are also "mid-engined", by having the main engine mass behind the front axle, RMR layout cars were previously (until ca. the 1990) just called MR, or mid-engine, rear-wheel-drive layout), because the nuance between distinctly front-engined vs. front ''mid-engined'' cars often remained undiscussed. In contrast to the fully rear-engine, rear-wheel-drive layout, the center of mass of the engine is in front of the rear axle. This layout is typically chosen for its favorable weight distribution. Placing the car's heaviest component within the wheelbase minimizes its rotational inertia around the vertical axis, facilitating turn-in or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Car Handling
Automobile handling and vehicle handling are descriptions of the way a wheeled vehicle responds and reacts to the inputs of a driver, as well as how it moves along a track or road. It is commonly judged by how a vehicle performs particularly during cornering, acceleration, and braking as well as on the vehicle's directional stability when moving in steady state condition. In the automotive industry, handling and braking are the major components of a vehicle's "active" safety, as well as its ability to perform in auto racing. The maximum lateral acceleration is sometimes discussed separately as "road holding". (This discussion is directed at road vehicles with at least three wheels, but some of it may apply to other ground vehicles). Automobiles driven on public roads whose engineering requirements emphasize handling over comfort and passenger space are named sports cars. Factors that affect a car's handling Weight distribution Centre of mass height The centre of mass hei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citroën 2CV
The Citroën 2CV (french: link=no, deux chevaux(-vapeur), , lit. "two steam horse(power)s", meaning "two ''taxable'' horsepower") is an air-cooled front-engine, front-wheel-drive, economy family car, introduced at the 1948 Paris Mondial de l'Automobile, and manufactured by Citroën for model years 1948–1990. Conceived by Citroën Vice-President Pierre Boulanger to help motorise the large number of farmers still using horses and carts in 1930s France, the 2CV has a combination of innovative engineering and straightforward, utilitarian bodywork — at first with extra thin panels, reinforced by ''corrugating'' the metal. The 2CV featured overall low cost of ownership, simplicity of maintenance, an easily serviced air-cooled engine (originally offering 9 hp), and minimal fuel consumption. In addition, it had literally been designed to cross a freshly ploughed field, because of the great lack of paved roads in France then; with a long-travel suspension system, that con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Driveshaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a splined joint or prismatic joint. History The term ''driveshaft'' first appeared during the mid-19th centu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rear-engine, Rear-wheel-drive Layout
In automotive design, an RR, or rear-engine, rear-wheel-drive layout places both the engine and drive wheels at the rear of the vehicle. In contrast to the RMR layout, the center of mass of the engine is between the rear axle and the rear bumper. Although very common in transit buses and coaches due to the elimination of the drive shaft with low-floor buses, this layout has become increasingly rare in passenger cars. Overview Most of the traits of the RR configuration are shared with the mid-engine rear-wheel-drive, or MR. Placing the engine near the driven rear wheels allows for a physically smaller, lighter, less complex, and more efficient drivetrain, since there is no need for a driveshaft, and the differential can be integrated with the transmission, commonly referred to as a transaxle. The front-engine front-wheel-drive layout also has this advantage. Since the engine is typically the heaviest component of the car, putting it near the rear axle usually results in more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault 4
The Renault 4, also known as the 4L (pronounced "Quatrelle" in French), is a small economy car produced by the French automaker Renault between 1961 and 1994. Although the Renault 4 was marketed as a short station wagon, its minimal rear overhang, and single top-hinged rear opening made it the world's first mass-produced hatchback car, as well as the first front-wheel drive family car produced by Renault. The car was launched at a time when several decades of economic stagnation were giving way to growing prosperity and surging car ownership in France. The first million cars were produced by 1 February 1966, less than four and a half years after launch; eventually over eight million were built, making the Renault 4 a commercial success because of the timing of its introduction and the merits of its design. Inearly 2020, the 33-year production run of the Renault 4 was counted as the seventeenth most long-lived single generation car in history. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-engine, Front-wheel-drive Layout
In automotive design, a front-mid-engine design, mid-engine, front-wheel-drive layout (also called more simply "mid-engine, front-wheel-drive layout", and abbreviated MF or FMF) is one in which the front road wheels are driven by an internal-combustion engine placed just behind them, in front of the passenger compartment. In contrast to the front-engine, front-wheel-drive layout (FF), the center of mass of the engine is behind the front axle. This layout is typically chosen for its better weight distribution (the heaviest component is near the center of the car, lowering its moment of inertia). Many early successful (and mostly French) mass-produced front-wheel drive cars used the MF layout, until the 1959 Mini, BMC (Austin / Morris) Mini demonstrated the layout and passenger car packaging benefits of mounting the engine transversely in front of the front axle. At first – when well executed – the packaging, space utilization and user experience of MF layout, even in a subcompac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Front Mid-engine, Front-wheel-drive Layout
In automotive design, a front-mid-engine, front-wheel-drive layout (also called more simply "mid-engine, front-wheel-drive layout", and abbreviated MF or FMF) is one in which the front road wheels are driven by an internal-combustion engine placed just behind them, in front of the passenger compartment. In contrast to the front-engine, front-wheel-drive layout (FF), the center of mass of the engine is behind the front axle. This layout is typically chosen for its better weight distribution (the heaviest component is near the center of the car, lowering its moment of inertia). Many early successful (and mostly French) mass-produced front-wheel drive cars used the MF layout, until the 1959 BMC (Austin / Morris) Mini demonstrated the layout and passenger car packaging benefits of mounting the engine transversely in front of the front axle. At first – when well executed – the packaging, space utilization and user experience of MF layout, even in a subcompact or supermini, like the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Unibody
A vehicle frame, also historically known as its '' chassis'', is the main supporting structure of a motor vehicle to which all other components are attached, comparable to the skeleton of an organism. Until the 1930s, virtually every car had a structural frame separate from its body. This construction design is known as '' body-on-frame''. By the 1960s, unibody construction in passenger cars had become common, and the trend to unibody for passenger cars continued over the ensuing decades. Nearly all trucks, buses, and most pickups continue to use a separate frame as their chassis. Functions The main functions of a frame in a motor vehicle are: # To support the vehicle's mechanical components and body # To deal with static and dynamic loads, without undue deflection or distortion. :These include: ::*Weight of the body, passengers, and cargo loads. ::*Vertical and torsional twisting transmitted by going over uneven surfaces. ::*Transverse lateral forces caused by road cond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cord Automobile
Cord was the brand name of an American luxury automobile company from Connersville, Indiana, manufactured by the Auburn Automobile Company from 1929 to 1932 and again in 1936 and 1937. The Cord Corporation was founded and run by E. L. Cord as a holding company for his many transportation interests, including the Auburn Automobile Company. Cord was noted for its innovative technology and streamlined designs. Innovations Cord innovations include front-wheel drive on the L-29 and hidden headlamps on the 810 and 812. Though DeSoto used them in 1942, hidden headlamps did not reappear as a luxury feature until the 1960s, beginning with the 1963 Chevrolet Corvette. It was followed two years later by another General Motors product, the Buick Riviera, whose GM stylists later stated they were trying to capture the "feel" of the Cord's design. "Servo" shifting was accomplished through a Bendix electro-vacuum pre-selector mechanism (a type of electromechanical shifting). Cord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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