Mitsubishi SUW | |
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Mitsubishi SUW concepts, from top: SUW Advance, SUW Compact, SUW Active. | |
Overview | |
Manufacturer | Mitsubishi Motors |
Production | 1999 |
Body and chassis | |
Class | Concept cars |
Body style | 3-door hatchback 5-door hatchback 5-door sport utility vehicle |
The Mitsubishi SUW (Smart Utility Wagon) is a series of concept cars sharing a common design theme, and first exhibited by Japanese automaker Mitsubishi Motors at the 1999 Frankfurt and Tokyo Motor Shows. [1] [2]
A concept car is a car made to showcase new styling and/or new technology. They are often shown at motor shows to gauge customer reaction to new and radical designs which may or may not be mass-produced. General Motors designer Harley Earl is generally credited with inventing the concept car, and did much to popularize it through its traveling Motorama shows of the 1950s.
Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south.
Mitsubishi Motors Corporation is a Japanese multinational automotive manufacturer headquartered in Minato, Tokyo, Japan. In 2011, Mitsubishi Motors was the sixth-biggest Japanese automaker and the nineteenth-biggest worldwide by production. From October 2016 onwards, Mitsubishi has been one-third (34%) owned by Nissan, and thus a part of the Renault–Nissan–Mitsubishi Alliance.
The Smart Utility Wagon theme was introduced late in 1998 as a demonstration of the company's corporate slogan of the time, "Innovation in Motion", which was itself to represent "smart design" and "ecology conscious[ness]". Specifically, SUWs shared the company's gasoline direct injection (GDI) engine technology, a taller roofline for easier entry and exit, and interior space competitive with larger vehicles. [3] The three individual vehicles Mitsubishi produced were the SUW Advance, a five-door hatchback family car, the SUW Compact a three-door hatchback small car, and the SUW Active sport utility vehicle. [2]
Gasoline direct injection (GDI), is a form of fuel injection employed in modern two-stroke and four-stroke gasoline engines. The gasoline is highly pressurized, and injected via a common rail fuel line directly into the combustion chamber of each cylinder, as opposed to conventional multipoint fuel injection that injects fuel into the intake tract or cylinder port. Directly injecting fuel into the combustion chamber requires high-pressure injection, whereas low pressure is used injecting into the intake tract or cylinder port.
A hatchback is a car with a hatch-type rear door that opens upwards and often a shared volume for the passenger and cargo areas.
Sport utility vehicle (SUV) is a category of motor vehicles which combine elements of road-going passenger cars with features from off-road vehicles, such as raised ground clearance and four-wheel drive.
The SUW Advance hatchback was designed with accommodation for five adults and high fuel economy as its highest priorities. [2] Externally, it measured 3,880 millimetres (152.8 in), 1,695 mm (66.7 in) wide, and 1,505 mm (59.3 in) high, while suicide doors at the rear and no central vertical pillar allowed easier entry and egress. The car was powered by a 105 PS (77 kW; 104 hp) GDI-HEV hybrid electric powertrain; a 1.5-litre internal combustion engine using gasoline direct injection and an array of lithium ion batteries, mated to a continuously variable transmission. [1] With a lightweight 980 kg (2,161 lb) body and a drag coefficient of 0.28, Mitsubishi claimed it to be capable of 31.5 kilometres per litre (89.0 mpg‑imp; 74.1 mpg‑US). [2]
The fuel economy of an automobile relates distance traveled by a vehicle and the amount of fuel consumed. Consumption can be expressed in terms of volume of fuel to travel a distance, or the distance travelled per unit volume of fuel consumed. Since fuel consumption of vehicles is a significant factor in air pollution, and since importation of motor fuel can be a large part of a nation's foreign trade, many countries impose requirements for fuel economy. Different methods are used to approximate the actual performance of the vehicle. The energy in fuel is required to overcome various losses encountered while propelling the vehicle, and in providing power to vehicle systems such as ignition or air conditioning. Various strategies can be employed to reduce losses at each of the conversions between the chemical energy in the fuel and the kinetic energy of the vehicle. Driver behavior can affect fuel economy; maneuvers such as sudden acceleration and heavy braking waste energy.
A suicide door is the slang term for an automobile door hinged at its rear rather than the front. Such doors were originally used on horse-drawn carriages, but are rarely found on modern vehicles, primarily because they are perceived as being less safe than a front-hinged door.
In a motor vehicle, the powertrain or powerplant comprises the main components that generate power and deliver it to the road surface, water, or air. This includes the engine, transmission, drive shafts, differentials, and the final drive. More recently in hybrid powertrains the battery, the electric motor and the control algorithm are also seen as elements of the powertrain.
The SUW Compact was designed for urban environments, so compactness and manoeuvrability were prioritised alongside fuel economy. [2] The Compact was 3,580 mm (140.9 in) long, 1,685 mm (66.3 in) wide and 1,515 mm (59.6 in) high, and it benefited from a turning circle of 4.4 metres (14.4 ft). The powertrain also utilised GDI technology, this time as a 78 PS (57 kW; 77 hp) 1.1-litre with ASG (Automatic Stop-Go), a system which turns off the engine when it is idling and restarts it on demand. [4] Combined with its drag coefficient of 0.30, the Compact claimed fuel consumption of 4.5 litres per 100 kilometres (62.8 mpg‑imp; 52.3 mpg‑US). [1]
The SUW Active did not appear alongside its siblings at Frankfurt, debuting instead in Tokyo in October. [2] Another GDI powertrain was used, this time fitted with a turbocharger. The car measured 4,240 mm (166.9 in) long, 1,745 mm (68.7 in) wide and 1,535 mm (60.4 in) high.
A turbocharger, colloquially known as a turbo, is a turbine-driven forced induction device that increases an internal combustion engine's efficiency and power output by forcing extra compressed air into the combustion chamber. This improvement over a naturally aspirated engine's power output is due to the fact that the compressor can force more air—and proportionately more fuel—into the combustion chamber than atmospheric pressure alone.
The Volkswagen XL1 is a two-person limited production diesel-powered plug-in hybrid produced by Volkswagen. The XL1 car was designed to be able to travel 100 km on 1 litre of diesel fuel, while being both roadworthy and practical. To achieve such economy, it is produced with lightweight materials, a streamlined body and an engine and transmission designed and tuned for economy. The concept car was modified first in 2009 as the L1 and again in 2011 as the XL1.
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