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Front-engine, rear-wheel-drive layout

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The powertrain layout of a motorised vehicle such as a car is often defined by the location of the engine or motors and the drive wheels .

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53-484: A front-engine, rear-wheel-drive layout (FR) , also called Systeme Panhard is a powertrain layout with an engine in front and rear-wheel-drive , connected via a drive shaft . This arrangement, with the engine straddling the front axle, was the traditional automobile layout for most of the pre-1950s automotive mechanical projects. It is also used in trucks, pickups, and high-floor buses and school buses . A front mid-engine, rear-wheel-drive layout (FMR) places

106-537: A background in industrial design or sometimes tooling engineering in the case of some Class-A modelers. Autodesk Alias and ICEM Surf are the two most widely used software tools for Class-A development. Uniform surface continuity is critical to ensure Class-A surface standards. The continuity of the areas is between the quality grades G0 through G3, with G3 guaranteeing the cleanest patch-to-patch transitions. Several manufacturers have slightly varied development cycles for designing an automobile, but in practice, these are

159-423: A professional vocation is practiced by designers who may have an art background and a degree in industrial design or in transportation design. For the terminology used in the field, see the glossary of automotive design . The task of the design team is usually split into three main aspects: exterior design, interior design, and color and trim design. Graphic design is also an aspect of automotive design; this

212-441: A shaft to a differential in the centre of the car, which in the case of an M4 layout, distributes power to both front and rear axles. The rear-engine, four-wheel drive layout (abbreviated as R4) places the engine at the rear of the vehicle, and drives all four wheels. This layout is typically chosen to improve the traction or the handling of existing vehicle designs using the rear-engine, rear-wheel-drive layout (RR). For example,

265-434: A specific model consists of a chief designer and an exterior as well as an interior designer. In some cases, all three roles are done by one designer. Several junior designers are involved in the development process as well and make specific contributions all overseen by the chief designer. Apart from this, the color and trim designer works closely with other designers. The clay model team and digital model team work closely with

318-498: A vehicle. These include paints , plastics , fabric designs, leather , grains, carpet , headliner, wood trim, and so on. Color , contrast, texture , and pattern must be carefully combined to give the vehicle a unique interior environment experience. Designers work closely with exterior and interior designers. Designers draw inspiration from other design disciplines such as industrial design, fashion , home furnishing, architecture , and sometimes product design . Specific research

371-472: Is Pininfarina . Some Italian designers whose design services were sought globally include Aldo Brovarone , Giovanni Michelotti , Ercole Spada , Bruno Sacco , Marcello Gandini , Giorgetto Giugiaro , and Walter de Silva . Sweden had Volvo and Saab as domestic automakers, and the nation's northern location required that cars needed to withstand Nordic climate conditions. The Scandinavian design elements are known for their minimalism and simplicity. One of

424-587: Is between the rear axle and the rear bumper. Although common in electric cars, and in transit buses and coaches due to the elimination of the drive shaft with low-floor bus, this layout has become increasingly rare in fossil-fuelled passenger cars. The Porsche 911 is notable for its continuous use of the RR layout since 1963. Drivetrains where power can be sent to all four wheels are referred to as either four-wheel drive (4WD) or all-wheel drive (AWD). The front-engine, four-wheel drive layout (abbreviated as F4 layout) places

477-611: Is done into global trends to design for projects two to three model years in the future. Trend boards are created from this research to keep track of design influences as they relate to the automotive industry. The designer then uses this information to develop themes and concepts that are then further refined and tested on the vehicle models. The design team also develops graphics for items, such as badges, decals, dials, switches, kick or tread strips, or liveries. The sketches and rendering are transformed into 3D digital surface modeling and rendering for real-time evaluation with Math data in

530-418: Is first designed in a computer program and then "carved" using the machine and large amounts of clay. Even in times of photorealistic (three-dimensional) software and virtual models on power walls, the clay model is still the most important tool for a final evaluation of the exterior design of a vehicle and, therefore, is used throughout the industry. The designer responsible for the vehicles' interior develops

583-484: Is generally shared amongst the design team as the lead designer sees fit. The design focuses not only on the isolated outer shape of automobile parts, but concentrates on the combination of form and function, starting from the vehicle package. The aesthetic value will need to correspond to ergonomic functionality and utility features as well. In particular, vehicular electronic components and parts will give more challenges to automotive designers who are required to update on

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636-455: Is notable for the Ford Sierra line, a work of Uwe Bahnsen , Robert Lutz , and Patrick le Quément . Other notable British designers include William Towns for Aston Martin , and David Bache for Land Rover and Range Rover , and Ian Callum for Jaguar . In the late 1980s, Royden Axe (previously Chrysler UK Design Director) and Gordon Sked along with Gerry McGovern produced most notably

689-435: Is typically done by a large team from many different disciplines also included within automotive engineering , however, design roles are not associated with requirements for professional- or chartered-engineer qualifications. Automotive design in this context focuses primarily on developing the visual appearance or aesthetics of vehicles, while also becoming involved in the creation of product concepts . Automotive design as

742-410: The 1960s to the 1990s. In Italy, Fiat and Alfa Romeo played a major role in car design. Many coachbuilders were dependent on these two major manufacturers. Italian manufacturers had a large presence in motorsports leading to several sport car manufacturers like Ferrari , Lancia , Lamborghini , Maserati , etc. During the late-1950s, Italian automobile designs gained global popularity coinciding with

795-445: The 1960s, Ford 's first-generation Ford Mustang and Thunderbird marked another era leading into new market segments from Detroit . The Ford Mustang achieved record sales in its first year of production and established the pony car segment. Personal injury litigation has affected the design and appearance of the car in the 20th century. Until World War I , most automakers were concerned with mechanical reliability rather than

848-490: The 1980s, and Klaus Luthe until the mid-1990s. The American-born designer Chris Bangle was hired by BMW in the late-1990s to redefine the brand. Bangle incorporated new single-press technology for compound curves to add controversial styling elements to his designs. The Porsche family contribution was instrumental in the evolution of Porsche cars, while the Italian designer Bruno Sacco helped create various Mercedes Models from

901-544: The MGF and Rover 800 During the complex changes in the British car industry in the 1990's and beyond a mix of designers worked on all of the remaining mainstream brands under one design director and in one studio. The director most involved was Geoff Upex, with his team of Richard Woolley, Dave Saddington, George Thomson, Alan Mobberley, and Martin Peach (colour and trim). Together they created

954-565: The Porsche 911 added all-wheel drive to the existing line-up of rear-wheel drive models in 1989. In automotive design , dual-motor, four-wheel-drive layout is mainly used by battery electric vehicles by placing electric motors on both front and rear axles and drives all four roadwheels, creating a four-wheel drive layout. This layout is made possible by the small size of electric motors compared to internal combustion engines , allowing it to be placed in multiple locations. It also eliminates

1007-882: The Rover 75, 45, and 25 (previously 400 and 200) the L322 Range Rover, the T5 platform-based Discovery and Range Rover sport, the Freelander 2, and the Mini as requested by BMW before the company was sold Germany is often considered the birthplace of industrial design with the Bauhaus School of Design, before it was closed down by the Nazi regime. Ferdinand Porsche and his family played a significant role in German design. Mercedes-Benz passenger cars were also in

1060-637: The company away from boxy-looking cars into more aerodynamic and futuristic designs that were influenced by rockets after WWII. Other influential automotive designers include Raymond Loewy , who was responsible for a number of Studebaker vehicles such as the Avanti , and Gordon Buehrig , who was responsible for the Auburn 851, as well as the Cord 810 and 812 . Starting in the 1960s, Dick Teague , who spent most of his career with American Motors Corporation (AMC), originated

1113-506: The concept of using interchangeable body panels so as to create a wide array of different vehicles using the same stampings , starting with the AMC Cavalier . Teague was responsible for automotive designs such as the two-seat AMC AMX muscle car, the subcompact Gremlin , the Pacer , and Matador coupe , as well as the original and market segment-creating, Jeep Cherokee . Additionally during

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1166-493: The credit or blame). Critics called his strategy planned obsolescence . Sloan preferred the term "dynamic obsolescence". This strategy had far-reaching effects on the auto business, the field of product design, and eventually the American economy. The smaller automakers could not maintain the pace and expense of yearly re-styling. Henry Ford did not like the model-year change because he clung to an engineer's notions of simplicity,

1219-697: The early original Scandinavian designs was the Saab 92001 by Sixten Sason and Gunnar Ljungström. Koenigsegg , founded in the 1990s, became Sweden's first domestic producer of high end sports cars, with many of their models featuring in house designs by Swedish designers. Before World War II and until the early-1990s, Czechoslovakia had a strong presence in the automotive industry with manufacturers like Skoda , Jawa , Tatra , CZ , Praga , and Zetor . Czech automobiles were generally known for their originality in mechanical simplicity and designs were remarkably Bohemian as evident from Tatra cars and Jawa motorcycles. During

1272-480: The economics of scale, and design integrity. GM surpassed Ford's sales in 1931 and became the dominant company in the industry thereafter. The frequent design changes also made it necessary to use a body-on-frame rather than the lighter but less adaptable monocoque design used by most European automakers. In the 1930s, Chrysler 's innovations with aerodynamics helped launch the Chrysler Airflow in 1934, which

1325-409: The engine at the front of the vehicle and drives all four roadwheels. This layout is typically chosen for better control on many surfaces, and is an important part of rally racing as well as off-road driving. Most four-wheel-drive layouts are front-engined and are derivatives of earlier front-engine, rear-wheel-drive designs. The mid-engine, four-wheel drive layout (abbreviated as M4 layout) places

1378-415: The engine in the front half of the vehicle but behind the front axle, which likewise drives the rear wheels via a driveshaft. Shifting the engine's center of mass rearward aids in front/rear weight distribution and reduces the moment of inertia , both of which improve a vehicle's handling . While the mechanical layout of an FMR is substantially the same as an FR car, the classification of some models of

1431-405: The engine in the middle of the vehicle, between both axles and drives all four road wheels. Although the term "mid-engine" can mean the engine is placed anywhere in the vehicle such that the centre of gravity of the engine lies between the front and rear axles, it is usually used for sports cars and racing cars where the engine is behind the passenger compartment. The motive output is then sent down

1484-436: The engine is located at the front of the vehicle and driven wheels are located at the rear. This was the traditional automobile layout for most of the 20th century, and remains the most common layout for rear-wheel drive vehicles. The mid-engine, rear-wheel drive layout (abbreviated as MR layout) is one where the rear wheels are driven by an engine placed just in front of them, behind the passenger compartment. In contrast to

1537-430: The exterior of the vehicle develops the proportions, shape, and surface details of the vehicle. Exterior design is first done by a series of manual sketches and digital drawings. Progressively, more detailed drawings are executed and approved by appropriate layers of management, followed by digital rendering to images. Consumer feedback is generally sought at this point to help iteratively refine vehicle concepts according to

1590-479: The external appearance of their cars. Later, luxury and aesthetics became a demand, and also an effective marketing tool. Designs from each nation with their own strong cultural identity are reflected in their exterior and interior designs. World War II slowed the progress, but after the early 1950s, Italian designers set the trend and remained the driving force until the early part of the 1980s. In France notable designs came from Bugatti and Avions Voisin . Of

1643-683: The following: The design process occurs concurrently with other product engineers who will be engineering the styling data for meeting performance, manufacturing, and safety regulations. From mid-phase, back-and-forth interactions between the designers and product engineers culminate into a finished product being manufacturing-ready. Apart from this the engineering team parallelly works in the following areas. Product Engineering (Body In White Sheetmetal Design and Plastic engineering), NVH Development team, Prototype development, Powertrain engineering, Physical Vehicle validation, Tool and Die development, and Manufacturing process design. The design team for

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1696-572: The front motor must reduce torque and power in order to prevent the front wheels from spinning as weight transfers to the rear of the vehicle. The excess power is transferred to the rear motor where it can be used immediately. The opposite applies when braking, when the front motor can accept more regenerative braking torque and power. However dual motors usually have less range. In addition, electric vehicles may be equipped with more than two electric motors to achieve greater power output and superior handling. The first mass-produced triple-motor layout

1749-521: The initial stages. During the development process succeeding phases will require the 3D model fully developed to meet the aesthetic requirements of a designer as well as all engineering and manufacturing requirements. The fully developed CAS digital model will be re-developed for manufacturing meeting the Class-A surface standards that involve both technical as well as aesthetics. A Product Engineering team will further develop this data. These modelers usually have

1802-461: The latest information and knowledge associated with emerging vehicular gadgetry, particularly dashtop mobile devices, like GPS navigation, satellite radio , HD radio , mobile TV, MP3 players, video playback, and smartphone interfaces. Though not all the new vehicular gadgets are to be designated as factory standard items, some of them may be integral to determining the future course of any specific vehicular models. The design team(s) responsible for

1855-400: The location of each is dependent on the application for which the vehicle will be used. The front-engine, front-wheel-drive layout (abbreviated as FF layout) places both the internal combustion engine and driven wheels at the front of the vehicle. This is the most common layout for cars since the late 20th century. Some early front-wheel drive cars from the 1930s had the engine located in

1908-428: The luxury segment and played an important role in German car design. After the 1980s, German design evolved into a distinctive Teutonic style often to complement their highly engineered cars suited to Autobahns . The early German design clues of the present-day owe some part to Italian designers like Giovanni Michelotti , Ercole Spada , Bruno Sacco , and Giorgetto Giugiaro . During the mid- and late-20th century one of

1961-567: The mass-selling cars, Citroën launched their vehicles with innovative designs and engineering, aided by the styling of Flaminio Bertoni as evident from the Citroën DS . After World War II, with the decline of the coachbuilding industry, French automakers (except Citroën) followed British and other popular trends until they gained financial stability. During the 1980s, manufacturers like Renault cultivated their own strong design identities with designers like Patrick Le Quément . Peugeot , which

2014-409: The middle of the car. A rear-engine, front-wheel-drive layout is one in which the engine is between or behind the rear wheels, and drives the front wheels via a driveshaft, the complete reverse of a conventional front-engine, rear-wheel-drive vehicle layout. This layout has only been used on prototype and concept cars. The front-engine, rear-wheel drive layout (abbreviated as FR layout) is one where

2067-511: The modern fashion and architecture at that time around the world. Various design and technical schools in Turin turned out designers on a large scale. By the late-1960s, almost all Italian coachbuilders transformed into design studios catering to automakers around the world. The trend continued in the 1990s when the Japanese and Korean manufacturers sourced designs from these styling studios. One example

2120-525: The most influential coach builders/designers in Germany was Karmann . German designs started gaining popularity after the 1980s, notable after the formation of Audi . Volkswagen , which was dependent on Marcello Gandini , Giorgetto Giugiaro, and Karmann, later formed the contemporary design language along with Audi. BMW entered the automobile design with sporty-looking everyday sedans using Giovanni Michelotti. These models were later enhanced by Ercole Spada into

2173-627: The motorsport industry. Still, during the 1960s, British manufacturers sought professional help from Italian designers and studios such as Giovanni Michelotti , Ercole Spada , and Pininfarina . Notable British contributions to automobile designs were the Morris Mini by Alec Issigonis , several Jaguar Cars by Sir William Lyons and Malcolm Sayer, Aston Martin DB Series, and several cars from Triumph and MG . Ford Europe, based in Great Britain,

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2226-406: The need of a drive shaft that are commonly used by conventional four-wheel drive vehicles to create space for batteries that are commonly mounted on the floor of electric vehicles. The layout is also beneficial to distribute available electrical horsepower to maximize torque and power in response to road grip conditions and weight transfer in the vehicle. For example, during hard acceleration,

2279-466: The proportions, shape, placement, and surfaces for the instrument panel, seats, door trim panels, headliner, pillar trims, etc. Here the emphasis is on ergonomics and the comfort of the passengers. The procedure here is the same as with exterior design (sketch, digital model, and clay model). The color and trim (or color and materials) designer is responsible for the research, design, and development of all interior and exterior colors and materials used on

2332-446: The rear-engined RR layout, the center of mass of the engine is in front of the rear axle. This layout is typically chosen for its low moment of inertia and relatively favorable weight distribution. The rear-engine, rear-wheel drive layout (abbreviated as RR layout) places both the engine and drive wheels at the rear of the vehicle. In contrast to the MR layout, the center of mass of the engine

2385-689: The same vehicle may vary as either FR or FMR depending on the length of the engine (e.g. 4-cylinder vs. 6-cylinder) and its center of mass in relation to the front axle. FMR cars are often characterized by a long hood and front wheels that are pushed forward to the corners of the vehicle, close to the front bumper. 2+2 -style grand tourers often have FMR layouts, as a rear engine does not leave much space for rear seats. Powertrain layout Layouts can roughly be divided into three categories: front-wheel drive (FWD), rear-wheel drive (RWD) and four-wheel drive (4WD). Many different combinations of engine location and driven wheels are found in practice, and

2438-414: The styling team all located within the studio. Apart from this, there would be studio heads, studio managers, and prototype engineers who would work across all teams in the studio. The total team size for developing a full car usually ranges from 25 to 40 members and the development time lasts for more than 24 months until signed-off for tooling and production. After that, a smaller team would be working until

2491-413: The targeted market and will continue throughout the rest of the design refinement process. After more progressive refinement, industrial plasticine and or digital models are developed from and along with the drawings and images. The data from these models are then used to create quarter-scale and finally full-sized mock-ups of the final design. With three- and five-axis CNC milling machines, the clay model

2544-483: The vehicle launch. In the United States, automotive design reached a turning point in the 1920s when the American national automobile market began reaching saturation. To maintain unit sales, General Motors head Alfred P. Sloan Jr. suggested annual model-year design changes to convince car owners that they needed to buy a new replacement each year, an idea borrowed from the bicycle industry (though Sloan usually gets

2597-499: Was Harley Earl , who is credited with inventing the idea of a concept car , and who brought the tailfin and other aeronautical design references to auto design starting with the rear fenders of the 1948 Cadillac. Another notable designer was Chrysler group's designer Virgil Exner , who developed the Forward look design in the mid-1950s. Exner is also credited with using wind tunnel testing to justify incorporating tailfins, thus moving

2650-602: Was dependent on Pininfarina since the early post-war period, later established its own brand identity from the 1980s onwards. Its other company, Citroën, still retains its distinctive French innovations for its designs. Great Britain was Europe's leading manufacturer of automobiles until the late-1960s. During that era, there were more British-based automakers than in the rest of Europe combined. The British automobile industry catered to all segments ranging from compact, budget, sports, utility, and luxury-type cars. Car design in Britain

2703-466: Was introduced on the Audi e-tron in 2020, which consists of one motor at the front and two motors at the rear. Automotive design Automotive design is the process of developing the appearance (and to some extent the ergonomics ) of motor vehicles , including automobiles , motorcycles , trucks , buses , coaches , and vans . The functional design and development of a modern motor vehicle

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2756-655: Was markedly different from other European designs largely because British designers were not influenced by other European art or design movements, as well as the British clay modelers, used a different sweep set. British cars until World War II were sold in most of the British colonies . Innovations in vehicle packaging and chassis engineering combined with global familiarity with British designs meant vehicles were acceptable to public tastes at that time. British skilled resources such as panel beaters, die machinists, and clay modelers were also available partly due to their involvement with

2809-467: Was revolutionary and radical compared to contemporary vehicles. However, inadequate consumer acceptance of the advanced appearance of the cars forced a re-design of succeeding models of the Airflow. This marketing experience made the entire industry take note of the high risks involved in incorporating major design advancements into their production cars. A major influence on American auto styling and marketing

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