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This article is about the means of transport. For other uses, see Vehicle (disambiguation).
Automobiles are among the most commonly used engine-powered vehicles
A vehicle (Latin: vehiculum) is a mechanical means of conveyance, a carriage or transport. Most often they are manufactured (e.g. bicycles, cars, motorcycles, trains, ships, boats, and aircraft), although some other means of transport which are not made by humans also may be called vehicles; examples include icebergs and floating tree trunks. Vehicles may be propelled or pulled by engines or animals including humans, for instance, a chariot, a stagecoach, a mule-drawn barge, an ox-cart or rickshaw. However, animals on their own, though used as a means of transport, are not called vehicles, but rather beasts of burden or draft animals. This distinction includes humans carrying another human, for example a child or a disabled person. Means of transport without a vehicle or animal would include walking, running, crawling, or swimming. Vehicles that do not travel on land often are called craft, such as watercraft, sailcraft, aircraft, hovercraft, and spacecraft Land vehicles are classified broadly by what is used to apply steering and drive forces against the ground: wheeled, tracked, railed, or skied. History of vehicles
Power sourceVehicles may be powered by fuels, such as petroleum or diesel, nuclear power, wind, waves, batteries, electrical power, solar energy, gravity, human or animal power and other chemical reactions and physical sources of energy have seen some use. MotorsThe power is converted into some kind of motion by a "motor". Engines commonly include steam engines, internal combustion engines (including jet engines and gas turbines) or electric motors. Muscles perform this function in animals. Other schemes are sometimes used.[citation needed] MovementVehicles use different means to permit or ease movement. These are commonly in the form of wheels, boat or submarine hulls, skis, caterpillar tracks, skates, wings, rotors or cushions of air or jets of air. Lighter than air lifting and rocket power have also been used. Trains use tracks, either with wheels resting on them, or in a few cases using magnetic levitation. Cable cars are suspended from cables which move. Legs are used on experimental mechanical systems.[citation needed] One of the studies of vehicle movement is vehicle dynamics. In terms of dynamics, some vehicles such as bicycles and motorcycles leave essentially a single track and are unstable at rest. PropulsionPropulsion is achieved in different ways. It can be achieved by an animal's legs that pulls a vehicle or by wheels that provide torque, by jet propulsion, a propeller or sometimes linear electric motors. Cables can also be attached to a vehicle, as in some funiculars. Wind powered vehicles such as yachts are nearly always directly propelled by the wind, but some unusual forms use the power of the wind to turn wheels. Some gravity powered vehicles such as glider aircraft, street luge and soapbox cars have no in-built propulsion system. Vehicle metricsMain article: Vehicle metrics
There are a broad range of metrics that denote the relative capabilities of various vehicles. Most of them apply to all vehicles while others are type-specific. Types of vehiclesFurther information: Automobile and car
Bicycle
RickshawA rickshaw is a vehicle that may carry a human and be powered by a human, but it is the mechanical form or cart that is powered by the human that is labeled as the vehicle. For some human-powered vehicles the human providing the power is labeled as a driver. Tricycle
QuadracycleVelomobile
A velomobile is an enclosed human powered vehicle. Electric road carriagesSteam road carriage
Steam tricycle
At the other end of the scale, much lighter steam vehicles have been constructed such as the steam tricycle from the Comte de Dion in 1887. Petroleum (gasoline / diesel) motor-carriages
Road trainsA road train consists of a conventional heavy truck pulling three trailers or more, used in rural areas of Australia to move bulky loads such as livestock efficiently. Motorcycles
Rail-vehiclesRoad vehiclesWater vehiclesUnder-water vehicles
Land and water vehicles
Air vehiclesRocket and space vehicles
Snow vehicles
Other types of vehiclesLegislationMotor vehicle and trailer categories are defined according to the following international classification:[19]
European UnionIn the European Union the classifications for vehicle types are defined by [20]:
European Community, is based on the Community's WVTA (whole vehicle type-approval) system. Under this system, manufacturers can obtain certification for a vehicle type in one Member State if it meets the EC technical requirements and then market it EU-wide with no need for further tests. Total technical harmonization already has been achieved in three vehicle categories (passenger cars, motorcycles, and tractors) and soon will be extended to other vehicle categories (coaches and utility vehicles). It is essential that European car manufacturers be ensured access to as large a market as possible. While the Community type-approval system allows manufacturers to benefit fully from the opportunities offered by the internal market, worldwide technical harmonization in the context of the United Nations Economic Commission for Europe (UNECE) offers them a market which extends beyond European borders. Acronyms and abbreviationsMain article: Vehicle acronyms and abbreviations
See also
The Trikke is a human-powered vehicle (HPV)
Main article: Outline of vehicles
References
External links
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Keywords for Vehicle: Vehicle
This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.
IHS Europe: Infrared Heating Systems for Home and Business.