Renault Eolab Concept revealed ahead of 2014 Paris Motor Show

Article by Christian Andrei, on September 16, 2014

Ladies and gentlemen, this is the Renault Eolab Concept, company’s latest concept car that will debut at the 2014 Paris Motor Show. According to the press release, Eolab is an environmental prototype that features almost 100 technological innovations and what’s more interesting is that it has a fuel consumption of just 1 l/100 km or 282 mpg, while CO2 emissions are 22 g/km.

Renault says that Eolab’s recipe is simple: the car is designed to slice through air efficient, comes equipped with movable devices such as an active spoiler and lateral vanes, features multi-material body shell that combines steel, aluminum and composites for a weight drop of 400 kg and comes with a hybrid powertrain.

Under the hood, there is a 1.0-liter three-cylinder SCe petrol engine that generates 75 hp bolted to a clutchless 3-gear transmission as well as a 400V, 6.7 kWh battery that offers a 66 km range. The vehicle has an aerodynamic coefficient of 0.235 which makes it 30 percent more efficient than the Clio and features active ride height, active wheels that react to brake temperature to maximize Cd, an active front spoiler and active rear flaps.

As we said, the vehicle is 400 kg lighter than the current Clio and according to Renault, the weight drop was obtained thanks to the asymmetric 3-door layout, revised brakes that are 14.5 kg lighter, narrow Michelin ultra-low consumption tyres, ultra-thin windscreen (3 mm) that saves 2.6 kg, thinner interior trim, lighter plastics, optimized seat structure, lighter running gear using steel and aluminum, a magnesium roof that weighs 4.5 kg, a fixed bonnet that gains 2.5 kg, LED front lights, lithium-ion battery and compact centre-exit exhaust system.

When it comes to design, the Renault Eolab expresses the concept of aerodynamics, while the interior gets a dashboard of flowing lines linked in perfect harmony with the door panels.

Press Release

Renault Eolab Concept

Renault presents EOLAB, a new prototype which explores ways to deliver ultra-low fuel consumption. It boasts NEDC combined cycle consumption of 1 litre/100km, equivalent to 22g of CO2/km. To achieve such low figures, the designers focused their efforts on three main areas: minimising weight, refining aerodynamics and using "Z.E. Hybrid" technology for all, a brand new initiative which permits zero emissions motoring during everyday use.

As an innovative showcase with an environmental core, EOLAB includes a very high number of technological advances that are destined to be carried over gradually to vehicles available in the showroom. As a consequence, EOLAB underlines the undertaking of Renault - already a pioneer in the field of zero-emission mobility thanks to its range of electric vehicles - to take even greater steps to produce affordable models that have an increasingly smaller carbon footprint.

Technologies geared to achieving ultra-low fuel consumption for all

For Renault, the purpose of EOLAB is to remain true to the company's DNA by ensuring that ultra-low fuel consumption becomes a reality for as many people as possible. This in turn means making its technologies available at a price that people can afford. EOLAB features materials such as magnesium and aluminium, which are extremely light and also much cheaper than titanium. Meanwhile, the notion of such a car being produced in large numbers within the next 10 years was dialled into the plan from the very start.

100 technological advances for future Renaults

EOLAB is much more than just a styling exercise or a mere shop window. Conceived around a B-segment platform, the prototype incorporates around 100 new, realistic technological developments that are designed to be introduced gradually on upcoming Renault vehicles.

EOLAB's recipe

The EOLAB prototype's exceptional fuel economy - namely 1 litre/100km - is the fruit of work on three main fronts: refined aerodynamics, weight saving and Z.E. Hybrid technology (petrol/electricity):

The car's shape was designed to slice through air efficiently, while movable devices such as an active spoiler and lateral vanes perform the same way as ailerons.
A weight saving programme brought the car's mass down to just 400kg, thanks in particular to a multimaterial body shell combining steel, aluminium and composites, as well as a remarkable magnesium roof that tips the scales at barely 4kg. Saving weight was a virtuous circle since it enabled the size, and therefore the cost of the prototype's chief assemblies (engine, battery, wheels, brakes, etc.) to be kept low, thereby financing the decision to employ certain more costly materials;
Z.E. Hybrid technology: this new, compact and affordable hybrid power unit combines ultra-low fuel consumption with zero-emission mobility for journeys of less than 60km and at speeds of up to 120kph. In coming years, Z.E. Hybrid technology will become complementary to Renault's zero-emission electric vehicle range.
A contribution to the French government's "New Industrial Plan"

EOLAB forms part of the 'fuel consumption of 2 litres/100km for all' plan introduced within the framework of France's so-called New Industrial Plan. However, EOLAB goes further than the fuel consumption target set by the French government since it sets its sights on the much longer term. In the course of the prototype's design, Renault developed the technologies necessary for the introduction of a car with fuel consumption of just 2 litres/100km by 2020. To achieve this, Renault worked in a spirit of collaborative innovation with French automotive industry partners like car glass manufacturer Saint-Gobain, seat supplier Faurecia, tyre company Michelin and Continental (brake system). Renault also worked closely with major partners like the Korean company Posco (magnesium components). The specific know-how of all these partners made a valuable contribution to the success of the EOLAB prototype.

EOLAB Concept: a concept car to capture the imagination

Renault's designers were closely involved with the EOLAB project from its very early days. In the case of EOLAB Concept, they pushed the design parameters to perfect the car's styling and paid significant attention to detail in order to optimise aerodynamics and weight. With its sloping roof and breathtakingly slender rear end, the concept car's true purpose is well masked: beneath its seductively designed shell, everything is geared towards frugality. It demonstrates that Renault is able to add a touch of dream-like magic to a prototype whose fundamental mission is to achieve ultra-low fuel consumption.

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