Monday, September 6, 2010

Nissan Nuvu Concept, 2008







The Nissan Nuvu is a concept vehicle with unique 2+1 seating. It is easy to drive, even easier to park. It is the key solutions for tomorrow's city car."
The Nissan Nuvu is described as a moving oasis, a haven of green tranquillity in the urban jungle. To underline this message, Nissan Nuvu incorporates a witty representation of its green credentials: across its all-glass roof are a dozen or so small solar panels. Shaped like leaves on a branch, the power they generate is fed to the battery using a 'tree trunk' within the car as a conduit.

The interior package
The dimensions provide all the interior room needed for the vast majority of city journeys. Nissan Nuvu has two regular seats and a third occasional chair that can be folded down when required. But, unlike some two-seater city cars currently on the market, it is a thoroughly practical proposition with an integral luggage area providing sufficient space for a typical supermarket or shopping expedition.

The Solar panels
The energy tree is shaped like a thin trunk. As it reaches daylight it branches out under the glass roof providing occupants with protection from bright sunlight, just like a real tree. And providing a visual reminder of Nissan Nuvu's green credentials, covering the branches are dozens of small solar panels shaped like leaves.
The panels absorb energy from the sun which is then fed back down the energy tree and used to help recharge the battery and provide an extra power boost for the electric motor. As well as being genuinely green energy, it is estimated that the power generated via the solar panels will save the equivalent of one full overnight charge from mains electricity each month.

Driver controls are as simple as possible. All the major functions - steering, braking, transmission and throttle - are 'By-Wire' while the steering is controlled by an aircraft-style steering yoke: with just one turn from lock to lock, the steering is very direct for agility and manoeuvrability in the city. Nuvu's turning circle is just 3.7 metres.
There are two pedals - for stop and go - stalks for minor controls and a digital instrument panel with dials for speed, distance covered and battery range.

The exterior and interior design
Nuvu's design is further clear evidence of Nissan's continued desire to challenge convention and to explore all the possibilities that the EV could bring us. In many ways it was inspired by our two most extreme EVs of recent times: Mixim and Pivo 2.
Significantly, though, Nuvu delivers a more realistic interpretation of two of the most important aspects of its forerunners - the 'Friendly Innovation' found in Pivo 2 and the 'Sports Dynamics' central to Mixim

EV drivetrain
Nissan Nuvu is more than a styling concept of a future EV. It is a fully working mobile test bed for much of the technology that will be used in Nissan's production EV to be launched in 2010. For this reason elements of its technical specification are being kept secret for the time being.
The electric motor used in Nissan Nuvu is mounted at the rear of the vehicle and drives the back wheels, though neither its exact specification nor the power and torque figures are being released at this stage. A driving range of 125 kms and top speed of 120 km/h are being made public, however.

Li-Ion battery
Similarly although it can be revealed that the batteries used are of the latest laminated lithium-ion type and have a capacity of 140 Wh/kg (watt-hours per kilogram), the total capacity of the batteries and number of modules are not being disclosed at this stage.

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