Bluetooth is a wireless technology standard for exchanging data between fixed and mobile devices over short distances using short-wavelength UHF radio waves in the industrial and medical radio bands, from 2.400 to 2.485 GHz, building personal area networks. It was conceived as a wireless alternative to RS-232 data cables. Bluetooth is managed by the Bluetooth Special Interest Group, which has more than 30,000 member companies in the areas of telecommunication, computing and consumer electronics; the IEEE standardized no longer maintains the standard. The Bluetooth SIG oversees development of the specification, manages the qualification program, protects the trademarks. A manufacturer must meet Bluetooth SIG standards to market it as a Bluetooth device. A network of patents apply to the technology; the development of the "short-link" radio technology named Bluetooth, was initiated in 1989 by Nils Rydbeck, CTO at Ericsson Mobile in Lund, Sweden and by Johan Ullman. The purpose was to develop wireless headsets, according to two inventions by Johan Ullman, SE 8902098-6, issued 1989-06-12 and SE 9202239, issued 1992-07-24.
Nils Rydbeck tasked Tord Wingren with specifying and Jaap Haartsen and Sven Mattisson with developing. Both were working for Ericsson in Lund. Invented by Dutch electrical engineer Jaap Haartsen, working for telecommunications company Ericsson in 1994; the first consumer bluetooth launched in 1999. It was a hand free mobile headset which earned the technology the"Best of show Technology Award" at COMDEX; the first Bluetooth mobile phone was the Sony Ericsson T36 but it was the revised T39 model which made it to store shelves in 2001. The name Bluetooth is an Anglicised version of the Scandinavian Blåtand/Blåtann, the epithet of the tenth-century king Harald Bluetooth who united dissonant Danish tribes into a single kingdom; the implication is. The idea of this name was proposed in 1997 by Jim Kardach of Intel who developed a system that would allow mobile phones to communicate with computers. At the time of this proposal he was reading Frans G. Bengtsson's historical novel The Long Ships about Vikings and King Harald Bluetooth.
The Bluetooth logo is a bind rune merging the Younger Futhark runes and, Harald's initials. Bluetooth operates at frequencies between 2402 and 2480 MHz, or 2400 and 2483.5 MHz including guard bands 2 MHz wide at the bottom end and 3.5 MHz wide at the top. This is in the globally unlicensed industrial and medical 2.4 GHz short-range radio frequency band. Bluetooth uses. Bluetooth divides transmitted data into packets, transmits each packet on one of 79 designated Bluetooth channels; each channel has a bandwidth of 1 MHz. It performs 1600 hops per second, with adaptive frequency-hopping enabled. Bluetooth Low Energy uses 2 MHz spacing. Gaussian frequency-shift keying modulation was the only modulation scheme available. Since the introduction of Bluetooth 2.0+EDR, π/4-DQPSK and 8-DPSK modulation may be used between compatible devices. Devices functioning with GFSK are said to be operating in basic rate mode where an instantaneous bit rate of 1 Mbit/s is possible; the term Enhanced Data Rate is used to describe π/4-DPSK and 8-DPSK schemes, each giving 2 and 3 Mbit/s respectively.
The combination of these modes in Bluetooth radio technology is classified as a BR/EDR radio. Bluetooth is a packet-based protocol with a master/slave architecture. One master may communicate with up to seven slaves in a piconet. All devices share the master's clock. Packet exchange is based on the basic clock, defined by the master, which ticks at 312.5 µs intervals. Two clock ticks make up a slot of 625 µs, two slots make up a slot pair of 1250 µs. In the simple case of single-slot packets, the master transmits in slots and receives in odd slots; the slave, receives in slots and transmits in odd slots. Packets may be 1, 3 or 5 slots long, but in all cases the master's transmission begins in slots and the slave's in odd slots; the above excludes Bluetooth Low Energy, introduced in the 4.0 specification, which uses the same spectrum but somewhat differently. A master BR/EDR Bluetooth device can communicate with a maximum of seven devices in a piconet, though not all devices reach this maximum; the devices can switch roles, by agreement, the slave can become the master.
The Bluetooth Core Specification provides for the connection of two or more piconets to form a scatternet, in which certain devices play the master role in one piconet and the slave role in another. At any given time, data can be transferred between one other device; the master chooses. Since it is the master that chooses which slave to address, whereas a slave is supposed to listen in each receive slot, being a master is a lighter burden than being a slave. Being a master of seven slaves is possible; the specification is vague as to required behavior in scatternets. Bluetooth is a standard wire-replacement communications proto
Toyota Motor Corporation is a Japanese multinational automotive manufacturer headquartered in Toyota City, Japan. In 2017, Toyota's corporate structure consisted of 364,445 employees worldwide and, as of September 2018, was the sixth-largest company in the world by revenue; as of 2017, Toyota is the world's second-largest automotive manufacturer. Toyota was the world's first automobile manufacturer to produce more than 10 million vehicles per year which it has done since 2012, when it reported the production of its 200-millionth vehicle; as of July 2014, Toyota was the largest listed company in Japan by market capitalization and by revenue. Toyota is the world's market leader in sales of hybrid electric vehicles, one of the largest companies to encourage the mass-market adoption of hybrid vehicles across the globe. Toyota is a market leader in hydrogen fuel-cell vehicles. Cumulative global sales of Toyota and Lexus hybrid passenger car models achieved the 10 million milestone in January 2017.
Its Prius family is the world's top selling hybrid nameplate with over 6 million units sold worldwide as of January 2017. The company was founded by Kiichiro Toyoda in 1937, as a spinoff from his father's company Toyota Industries to create automobiles. Three years earlier, in 1934, while still a department of Toyota Industries, it created its first product, the Type A engine, its first passenger car in 1936, the Toyota AA. Toyota Motor Corporation produces vehicles under five brands, including the Toyota brand, Lexus and Daihatsu, it holds a 16.66% stake in Subaru Corporation, a 5.9% stake in Isuzu, as well as joint-ventures with two in China, one in India, one in the Czech Republic, along with several "nonautomotive" companies. TMC is part of one of the largest conglomerates in Japan. Toyota is listed on New York Stock Exchange and Tokyo Stock Exchange. Toyota is headquartered in Aichi; the main headquarters of Toyota is located in a 4-story building in Toyota. As of 2006, the head office has the "Toyopet" Toyota logo and the words "Toyota Motor".
The Toyota Technical Center, a 14-story building, the Honsha plant, Toyota's second plant engaging in mass production and named the Koromo plant, are adjacent to one another in a location near the headquarters. Vinod Jacob from The Hindu described the main headquarters building as "modest". In 2013, company head Akio Toyoda reported that it had difficulties retaining foreign employees at the headquarters due to the lack of amenities in the city, its Tokyo office is located in Tokyo. Its Nagoya office is located in Nagoya. In addition to manufacturing automobiles, Toyota provides financial services through its Toyota Financial Services division, builds robots. Presidents of Toyota Motor Company: Rizaburo Toyoda Kiichiro Toyoda Taizo Ishida Fukio Nakagawa Eiji Toyoda In 1981, Toyota Motor Co. Ltd. announced plans to merge with its sales entity Toyota Motor Sales Co. Ltd. Since 1950, the two entities had existed as separate companies as a prerequisite for reconstruction in postwar Japan. Shoichiro Toyoda presided over Toyota Motor Sales in preparation for the consummation of the merger that occurred in 1982.
Shoichiro succeeded his uncle Eiji as the President of the combined organization that became known as Toyota Motor Corporation. Chairmen of Toyota Motor Corporation: Eiji Toyoda Shoichiro Toyoda Hiroshi Okuda Fujio Cho Takeshi Uchiyamada Presidents of Toyota Motor Corporation: Shoichiro Toyoda Tatsuro Toyoda Hiroshi Okuda Fujio Cho Katsuaki Watanabe Akio Toyoda On June 14, 2013, Toyota Motor Corporation. Announced the appointment of external board members. Additionally, Vice Chairman Takeshi Uchiyamada replaced Fujio Cho as chairman, as the latter became an honorary chairman while Toyoda remains in the post of President. Toyota is publicly traded on the Tokyo, Nagoya and Sapporo exchanges under company code TYO: 7203. In addition, Toyota is foreign-listed on the New York Stock Exchange under NYSE: TM and on the London Stock Exchange under LSE: TYT. Toyota has been publicly traded in Japan since 1949 and internationally since 1999; as reported on its consolidated financial statements, Toyota has 606 consolidated subsidiaries and 199 affiliates.
Toyota Motor North America Toyota Canada Inc. Toyota Tsusho – Trading company for the Toyota Group Daihatsu Motor Company Hino Motors Lexus 100% Scion 100% DENSO Toyota Industries Aisin Seiki Co. Subaru Corporation Isuzu Motors PT Toyota-Astra Motor Noble Automotive PT Toyota Motor Manufacturing Indonesia Toyota, which earlier was the world's third largest automotive manufacturer behind American General Motors and Ford, produced for the first time in history more vehicles than Ford in 2005, in 2006 more than General Motors and has been the world's largest automotive manufacturer since except in 2011 when, triggered by the 2011 Tōhoku earthquake and tsunami, it fell to the #3 position behind General Motors and German Volkswagen Group. In 1924, Sakichi Toyoda invented the Toyoda Model G Auto
Toyota ZR engine
The ZR engine gasoline-engine-family, introduced in 2007 by Toyota Motor Corporation, uses a DOHC 16-valve cylinder head with a 4-cylinder die-cast block. Engines displace either 1.8-liters or 2.0-liters. All engines in this family are equipped with Toyota's dual VVT-i technology that optimizes both intake and exhaust valve timing; this engine family is the first to use Toyota's Valvematic system, first appearing on the Noah and Voxy in 2007 and the European Avensis in 2009. The Toyota 1ZR-FE is a 16-valve, 1.6 L engine equipped with dual VVT-i. This engine is available with a "multi-mode" manual transmission; this new engine is now replacing the 3ZZ-FE engine in most applications. Output for this engine is rated at 113 lb ⋅ ft of torque at 5200 rpm net. Specifications Engine type: In-Line 4-cylinder DOHC 16-valve Bore x Stroke: 80.5 mm × 78.5 mm Compression Ratio: 10.2:1Applications Toyota Auris Toyota Corolla Toyota Corolla Altis Toyota Vios The Toyota 1ZR-FAE is a DOHC, 16-valve, 1.6 L engine equipped with Dual VVT-i and Valvematic.
Output for this engine is rated at 132 hp at 6400 rpm and 118 lb⋅ft of torque at 4400 rpm for the Avensis. Compression ratio has been increased to 10.7:1, red line is at 6600 rpm. Valvematic varies the intake valve lift between 1 and 11 mm according to load and RPM. Applications Toyota Auris Toyota Corolla Toyota Avensis Toyota Verso Lotus Elise The Toyota 1ZR-FBE is a flex fuel version of the 1ZR-FE the DOHC, 16-valve, 1.6 L engine equipped with Dual VVT-i and Valvematic. Output for this engine is rated at 125 hp at 6000 rpm and 116 lb⋅ft of torque at 5200 rpm. Applications Toyota Corolla The Toyota 2ZR-FE is a DOHC, 16-valve, 1.8 L engine equipped with Dual VVT-i. This new engine is now replacing the 1ZZ-FE engine in most applications. Output for this engine is rated at 98–103 kW at 6000 rpm and 173 N⋅m of torque at 4400 rpm for the Corolla and Vibe and 95 kW and 171 N⋅m of torque in the Scion xD. Specifications Engine Type: In-Line 4-cylinder DOHC 16-valve Bore × Stroke = 80.5 mm × 88.3 mm Compression Ratio: 10.0:1 Weight: 97 kg, without fuel 15.2 km/L fuel consumption Applications Toyota Allion 2007-2009 Toyota Premio 2007-2009 Toyota Corolla Toyota Corolla Toyota Corolla Axio/Fielder Toyota Corolla Axio/Fielder Toyota Corolla Hatchback Toyota Auris Toyota Yaris Toyota Matrix/Pontiac Vibe Toyota Yaris GRMN with supercharger Scion xD Lotus Elise Model Year >= 2012 with Magnuson R900 supercharger Junpai D60 The Toyota 2ZR-FAE is a DOHC, 16-valve, 1.8 L this engine adopts the Valvematic system.
This all-new engine is progressively replacing the 2ZR-FE engine in most applications. Variants of this engine produce 104 -- 171 -- 175 N ⋅ m of torque. Compression ratio is 10.5:1 and redline is at 6600 rpm. The engine consumes 5–10% less fuel than the 2ZR-FE depending on the application. A special version of the 2ZR-FAE was introduced by Toyota in 2016 for the Taiwanese version of the Toyota Sienta. Unlike the original 2ZR-FAE, this version was created by adding the Valvematic system to the standard 2ZR-FE engine used in the Toyota Corolla Altis sold there, resulting in total power of 140 PS at 6200 rpm and a peak torque of 172 N⋅m. Applications Toyota Auris Toyota Avensis Toyota Corolla LE Eco only. Output for this engine is rated at 131 lb ⋅ ft of torque at 4000 rpm. Applications Toyota Corolla Toyota C-HR The Toyota 2ZR-FXE is a 1.8 L Atkinson cycle variant of the 2ZR-FE. It has the same bore and stroke, but the compression ratio is increased to 13.0:1, the inlet valve closing is retarded.
The net result is. Output is 73 kW and 142 N⋅m of torque, paired with electric motor/generators in the hybrid drive system. Thermal efficiency is about 38.5%. For the 2016 Toyota Prius, output is 95 hp at 5200 rpm and 105 lb⋅ft of torque at 3600 rpm, or when paired with electric motor/generators 71 hp and 120 lb⋅ft of torque in the hybrid drive system. Thermal efficiency is
A car platform is a shared set of common design and production efforts, as well as major components over a number of outwardly distinct models and types of cars from different, but somewhat related marques. It is practiced in the automotive industry to reduce the costs associated with the development of products by basing those products on a smaller number of platforms; this further allows companies to create distinct models from a design perspective on similar underpinnings. A basic definition of a platform in cars, from a technical point of view, includes: underbody and suspensions — where the underbody is made of front floor, engine compartment and frame. Key mechanical components that define an automobile platform include: The floorpan, which serves as a foundation for the chassis and other structural and mechanical components Front and rear axles and the distance between them - wheelbase Steering mechanism and type of power steering Type of front and rear suspensions Placement and choice of engine and other powertrain componentsPlatform sharing is a product development method where different products and the brand attached share the same components.
The purpose with platform sharing is to reduce the cost and have a more efficient product development process. The companies gain on reduced procurement cost by taking advantage of the commonality of the components. However, this limits their ability to differentiate the products and imposes a risk of losing the tangible uniqueness of the product; the companies have to make a trade-off between reducing their development costs and the degree of differentiation of the products. One of the first car companies to use this product development approach was General Motors for in 1908. General Motors used a single chassis for certain class of model across most of its brands like Chevrolet, Buick and Oldsmobile. Chrysler Corporation would use the same for Plymouth and DeSoto and Dodge cars. Ford followed the same principle for Mercury in US markets; the chassis unit was common with many shared mechanical components while the Exterior styling and Interior trims were designed according to its individual brand and category.
In recent years for Monocoque chassis, the Vehicle platform-sharing combined with advanced and flexible-manufacturing technology enable automakers to reduce product development and changeover times, while modular design and assembly allow building a greater variety of vehicles from one basic set of engineered components.. Shown below is the Nissan MS platform where vehicles ranging from 5-door hatchback, sedan to compact SUV and Minivan were built on common floor panel and many shared various functional assemblies such as engine and chassis components. Many vendors refer to this as vehicle architecture; the concept of product architecture is the scheme by which the function of a product is allocated to physical components. The use of a platform strategy provides several benefits: Greater flexibility between plants, Cost reduction achieved through using resources on a global scale, Increased utilization of plants, Reduction of the number of platforms as a result of their localization on a worldwide basis.
The car platform strategy has become important in new product development and in the innovation process. The finished products have to be responsive to market needs and to demonstrate distinctiveness while — at the same time — they must be developed and produced at low cost. Adopting such a strategy affects the development process and has an important impact on an automaker's organizational structure. A platform strategy offers advantages for the globalization process of automobile firms; because the majority of time and money by an automaker is spent on the development of platforms, platform sharing affords manufacturers the ability to cut costs on research and development by spreading the cost of the R&D over several product lines. Manufacturers are able to offer products at a lower cost to consumers. Additionally, economies of scale are increased. A "platform" was a shared chassis from a previously-engineered vehicle, as in the case for the Citroën 2CV platform chassis used by the Citroën Ami and Citroën Dyane, Volkswagen Beetle frame under the Volkswagen Karmann Ghia.
But these two manufacturers made vastly different category of vehicles under using the same chassis design at different years though the primary vehicle was still in production. In the USA platform sharing has been a common practice since the 1960s, when GM used the same platform in the development of the Pontiac LeMans, the Buick Skylark, the Chevrolet Chevelle, the Oldsmobile Cutlass. In the 1980s, Chrysler's K-cars all wore a badge with the letter "K" to indicate their shared platform. In stages, the "K" platform was extended in wheelbase, as well as use for several of the Corporation's different models. GM used similar strategies with its "J" platform. Subsequently GM introduced its "A" bodies for the same four divisions using the same tread width/wheelbase of the "X" body platform, but with larger body work to make the cars seem larger, with larger trunk compartments, they were popular through the 1980s, primarily. Cadillac started offering a "J" body model called the Cimarron, a much gussied up version of the other four brands' platform siblings.
A similar strategy applied to what is known as the N-J-L platform, arguably the most prolific of GM's efforts on one platform. Once more, GM's four lower level divis
Hybrid vehicle drivetrain
Hybrid vehicle drivetrains transmit power to the driving wheels for hybrid vehicles. A hybrid vehicle has multiple forms of motive power. Hybrids come in many configurations. For example, a hybrid may receive its energy by burning petroleum, but switch between an electric motor and a combustion engine. Electrical vehicles have a long history combining internal combustion and electrical transmission –as in a diesel-electric powertrain–, although they have been used for rail locomotives. A diesel-electric powertrain fails the definition of hybrid because the electrical drive transmission directly replaces the mechanical transmission rather than being a supplementary source of motive power. One of the earliest forms of hybrid land vehicle is the'trackless' trolleybus of the 1930s, which used traction current delivered by wire; the trolleybus was fitted with an internal combustion engine either to directly power the bus or to independently generate electricity. This enabled the vehicle to manoeuvre around broken overhead transmission wires.
The powertrain includes all of the components used to transform stored potential energy. Powertrains may either use chemical, nuclear or kinetic and make them useful for propulsion; the oldest example is the galley that used oars. A common modern example is the electric bicycle. Hybrid electric vehicles combine a battery or supercapacitor supplemented by an ICE that can recharge the batteries or power the vehicle. Other hybrid powertrains use flywheels to store energy. Among the different types of hybrid vehicles, only the electric/ICE type was commercially available as of 2016. One variety operated in parallel to provide power from both motors. Another operated in series with one source providing the power and the second providing electricity. Either source may provide the primary motive force, with the other augmenting the primary. Other combinations offer efficiency gains from superior energy management and regeneration that are offset by expense and the battery limitations. Combustion-electric hybrids have battery packs with far larger capacity than a combustion-only vehicle.
A combustion-electric hybrid has batteries that are light that offer higher energy density that are far more costly. ICEs require only a battery large enough to ignite the engine. Parallel hybrid systems have both an internal combustion engine and an electric motor that can both individually drive the car or both coupled up jointly giving drive; this is the most common hybrid system as of 2016. If they are joined at an axis, the speeds at this axis must be identical and the supplied torques add together; when only one of the two sources is in use, the other must either rotate, be connected by a one-way clutch or freewheel. With cars the two sources may be applied to the same shaft, turning at equal speeds and the torques adding up with the electric motor adding or subtracting torque to the system as necessary. Parallel hybrids can be further categorized by the balance between the different motors are at providing motive power: the ICE may be dominant or vice versa. Parallel hybrids rely more on regenerative braking and the ICE can act as a generator for supplemental recharging.
This makes them more efficient in urban'stop-and-go' conditions. They use a smaller battery pack than other hybrids. Honda's Insight and Accord hybrids are examples of production parallel hybrids. General Motors Parallel Hybrid Truck and BAS Hybrids such as the Saturn VUE and Aura Greenline and Chevrolet Malibu hybrids employ a parallel hybrid architecture. An alternative parallel hybrid is the'through the road' type. In this system a conventional drivetrain powers one axle, with an electric motor or motors driving another; this arrangement was used by the earliest'off track' trolleybuses. It in effect provides a complete backup power train. In modern motors batteries can be recharged through regenerative braking or by loading the electrically driven wheels during cruise; this allows a simpler approach to power-management. This layout has the advantage of providing four-wheel-drive in some conditions. Vehicles of this type include the Audi 100 Duo II, Subaru VIZIV and Peugeot 307 Hybrid HDi concept cars, the PSA Group vehicles Peugeot 3008, Peugeot 508, 508 RXH, Citroen DS5 all using the HYbrid4 system, the Volvo V60 plug-in hybrid, the BMW 2 Series Active Tourer, BMW i8, the second generation Honda NSX.
Series hybrids are referred to as extended-range electric vehicles or range-extended electric vehicles. Electric transmission has been available as an alternative to conventional mechanical transmissions since 1903. Mechanical transmissions impose many penalties, including weight, noise, complexity and a drain on engine power with every gear-change, whether accomplished manually or automatically. Unlike ICEs, electric motors do not require a transmission. In effect the entire mechanical transmission between the ICE and the wheels is removed and replac
Geneva Motor Show
The Geneva International Motor Show is an annual auto show held in March in the Swiss city of Geneva. The show is hosted at the Palexpo, a convention centre located next to the Geneva Cointrin International Airport; the Salon is organised by the Organisation Internationale des Constructeurs d'Automobiles, is considered an important major international auto show. First held in 1905, the Salon has hosted all major internal combustion engined models in the history of the automobile, along with benzene- and steam-powered cars from the beginning of the century. Exotic supercars steal the spotlight during their debuts at the show. Prototypes, new equipment, technical breakthroughs, international partnerships, as well as political and social debates, have been announced at the exhibition; the show is regarded as a level playing field for the world's automakers, aided by the fact Switzerland lacks an auto industry of its own. Areas of the show: Motor cars 3 or 4 or more wheels. Electric cars and alternative powered cars.
Special bodywork for motor cars, car design, engineering. Converted cars. Accessories and parts for motor cars OEM: original equipment manufacturers Workshop installations for the repair and maintenance of motor cars Miscellaneous products and services related to the car industry Animation / Attractions; the International Advanced Mobility Forum is the Geneva Motor Show forum on the mobility of the future. The 89th Geneva Motor Show was held between 7 and 17 March 2019; the 88th Geneva Motor Show was held on 8 to 18 March 2018. The 87th Geneva Motor Show was held from 9 to 19 March 2017; the 86th Geneva Motor Show was held from 3 to 13 March 2016. The 85th Geneva Motor Show was held from 5 to 15 March 2015; the 84th Geneva Motor Show was held from 6 to 16 March 2014. The 83rd Geneva Motor Show was held from 5 to 17 March 2013; the 82nd edition was held from 8 to 18 March 2012. The 2011 edition was held from 3 to 13 March 2011; the 80th edition of the Geneva Motor Show was held from 4–14 March 2010.
Over 80 introductions were expected for the show. Press days for the show started on 2 March 2010; the 2009 Geneva Motor Show was held from 5–15 March 2009. The following vehicles were introduced: The 2008 Geneva Motor Show was held from 6–16 March 2008; the following vehicles were introduced: The following were scheduled to be introduced at the 2007 Geneva Auto Show: In addition, Subaru introduced its new boxer diesel engine, Honda showed its next generation clean diesel engine. Bolloré Bluecar Fiat Panda, hybrid petrol -natural gas. Ford Focus Turnier 2.0 Honda FCX Clarity Opel Corsa D, with optimized 100HP 1.6l natural gas engine. Serial production will be evaluated. Reva Greeny AC1 and AC1 Z Subaru R1e, small electric city car, with a battery that can be 80% recharged in just 15 minutes; the following introductions were featured at the 2006 Geneva show: The following introductions were made at the 2005 Geneva show: The following introductions were made from 4 to 14 March 2004 at the Geneva show: The following introductions were made at the 2003 Geneva show: The following introductions were made at the 2002 Geneva show: The following major introductions were made at the 2001 Geneva show: The following introductions were made at the 2000 Geneva show: The following concepts and major launches featured at the 1999 Geneva show: The following concepts and major launches featured at the 1998 Geneva show: The following introductions were made at the 1997 Geneva show: The following introductions were made at the 1996 Geneva show: The following introductions were made at the 1995 Geneva show: The following introductions were made at the 1994 Geneva show: The following introductions were made at the 1993 Geneva show: The following introductions were made at the 1992 Geneva show: The following introductions were made at the 1991 Geneva show: The following introductions were made at the 1990 Geneva show: The following introductions were made at the 1989 Geneva show: Alfa Romeo SZ Alpina B10 Bi-Turbo Chevrolet Corvette ZR-1 Daihatsu Applause Ford Fiesta Urba Ford Via concept Lancia Delta Integrale 16v Lotus Carlton Mercedes-Benz 500SL Peugeot Agades concept Sbarro Osmos concept The following introductions were made at the 1988 Geneva show: Ford Saguaro concept Maserati Karif Sbarro Robur concept The following introductions were made at the 1987 Geneva show: Aston Martin Lagonda Sbarro Monster G concept The following introductions were made at the 1986 Geneva show: Aston Martin V8 Zagato coupe BMW 524d Citroën Eole concept Rover CCV concept Sbarro Challenge 2+2 concept Volvo 480 Zender Vision 3C concept The following introductions were made at the 1985 Geneva show: Ferrari 412 Lamborghini Countach LP5000 S Quattrovalvole Michelotti PAC Peugeot Griffe 4 concept Sbarro Challenge concept Sbarro Super Five Volvo 780 The following introductions were made at the 1984 Geneva show: Alfa Romeo 33 1.5 Giardinetta Alfa Romeo Tempo Libero concept Ferrari 288 GTO Ford APV concept Lamborghini Jalpa P350 Sbarro Super Eight concept Sbarro Mercedes Benz Biturbo Zagato Z33 "Free Time" The following introductions were made at the 1983 Geneva show: Alfa Romeo Delfino concept Alfa Romeo Zeta Sei concept Fiat Ritmo Coupe concept Ford Trio concept Lincoln Quicksilver concept Renault Gabbiano concept The following introductions were made at the 1982 Geneva show: Bentley Mulsanne Turbo Lamborghini LMA002 Michelotti CVT 58 concept Opel Corsa Spider concept Sbarro Super Twelve concept Volkswagen Golf GTD The followin
An engine or motor is a machine designed to convert one form of energy into mechanical energy. Heat engines, like the internal combustion engine, burn a fuel to create heat, used to do work. Electric motors convert electrical energy into mechanical motion, pneumatic motors use compressed air, clockwork motors in wind-up toys use elastic energy. In biological systems, molecular motors, like myosins in muscles, use chemical energy to create forces and motion; the word engine derives from Old French engin, from the Latin ingenium–the root of the word ingenious. Pre-industrial weapons of war, such as catapults and battering rams, were called siege engines, knowledge of how to construct them was treated as a military secret; the word gin, as in cotton gin, is short for engine. Most mechanical devices invented during the industrial revolution were described as engines—the steam engine being a notable example. However, the original steam engines, such as those by Thomas Savery, were not mechanical engines but pumps.
In this manner, a fire engine in its original form was a water pump, with the engine being transported to the fire by horses. In modern usage, the term engine describes devices, like steam engines and internal combustion engines, that burn or otherwise consume fuel to perform mechanical work by exerting a torque or linear force. Devices converting heat energy into motion are referred to as engines. Examples of engines which exert a torque include the familiar automobile gasoline and diesel engines, as well as turboshafts. Examples of engines which produce thrust include rockets; when the internal combustion engine was invented, the term motor was used to distinguish it from the steam engine—which was in wide use at the time, powering locomotives and other vehicles such as steam rollers. The term motor derives from the Latin verb moto which means to maintain motion, thus a motor is a device. Motor and engine are interchangeable in standard English. In some engineering jargons, the two words have different meanings, in which engine is a device that burns or otherwise consumes fuel, changing its chemical composition, a motor is a device driven by electricity, air, or hydraulic pressure, which does not change the chemical composition of its energy source.
However, rocketry uses the term rocket motor though they consume fuel. A heat engine may serve as a prime mover—a component that transforms the flow or changes in pressure of a fluid into mechanical energy. An automobile powered by an internal combustion engine may make use of various motors and pumps, but all such devices derive their power from the engine. Another way of looking at it is that a motor receives power from an external source, converts it into mechanical energy, while an engine creates power from pressure. Simple machines, such as the club and oar, are prehistoric. More complex engines using human power, animal power, water power, wind power and steam power date back to antiquity. Human power was focused by the use of simple engines, such as the capstan, windlass or treadmill, with ropes and block and tackle arrangements; these were used in cranes and aboard ships in Ancient Greece, as well as in mines, water pumps and siege engines in Ancient Rome. The writers of those times, including Vitruvius and Pliny the Elder, treat these engines as commonplace, so their invention may be more ancient.
By the 1st century AD, cattle and horses were used in mills, driving machines similar to those powered by humans in earlier times. According to Strabo, a water powered mill was built in Kaberia of the kingdom of Mithridates during the 1st century BC. Use of water wheels in mills spread throughout the Roman Empire over the next few centuries; some were quite complex, with aqueducts and sluices to maintain and channel the water, along with systems of gears, or toothed-wheels made of wood and metal to regulate the speed of rotation. More sophisticated small devices, such as the Antikythera Mechanism used complex trains of gears and dials to act as calendars or predict astronomical events. In a poem by Ausonius in the 4th century AD, he mentions a stone-cutting saw powered by water. Hero of Alexandria is credited with many such wind and steam powered machines in the 1st century AD, including the Aeolipile and the vending machine these machines were associated with worship, such as animated altars and automated temple doors.
Medieval Muslim engineers employed gears in mills and water-raising machines, used dams as a source of water power to provide additional power to watermills and water-raising machines. In the medieval Islamic world, such advances made it possible to mechanize many industrial tasks carried out by manual labour. In 1206, al-Jazari employed a crank-conrod system for two of his water-raising machines. A rudimentary steam turbine device was described by Taqi al-Din in 1551 and by Giovanni Branca in 1629. In the 13th century, the solid rocket motor was invented in China. Driven by gunpowder, this simplest form of internal combustion engine was unable to deliver sustained power, but was useful for propelling weaponry at high speeds towards enemies in battle and for fireworks. After invention, this innovation spread throughout Europe; the Watt steam engine was the first type of steam engine to make use of steam at a pressure just above atmospheric to drive the piston he