Renault EOLAB Hybrid capable of 282mpgOctober 1, 2014
The Renault EOLAB is a prototype designed to deliver ultra-low fuel consumption of 282mpg thanks to nearly 100 technological innovations.
The Renault EOLAB not only previews innovative technology that is destined to be introduced on production Renaults from now until 2020, but it is also the vision a realistic and affordable B-segment car that will appear within 10 years.
EOLAB, which takes its name from combining the name of ‘Aeolous’ God and Ruler of the Winds in Greek mythology, and ‘Laboratory’, is capable of achieving 282mpg and 22g/km CO2 emissions on the official NEDC cycle.
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.
The EOLAB prototype’s fuel is due to three main areas: 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 400kg, thanks in particular to a multi-material body shell combining steel, aluminium and composites, as well as a 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.
EOLAB forms part of the ‘fuel consumption of 2 litres/100km for all’ plan introduced within the framework of France’s 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 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.
- Around 100 new, realistic technological developments designed to be introduced gradually on new production Renaults from now until 2020
- Aerodynamics of 0.235 Cd (30 per cent less than equivalent Clio)
- Active ride height: Access mode, Urban mode and Extra-Urban mode
- Active wheels – react to brake temperature to maximise Cd
- Active front spoiler
- Active rear flaps
- Weight savings across the entire vehicle (400kg over equivalent Clio
- Asymmetric 3-door layout
- Compact revised brakes – no master cylinder & all systems integrated into one small lightweight unit
- Narrow 145/45R17 Michelin ultra-low consumption tyres
- Ultra-thin windscreen glass (3mm) – saves 2.6kg
- Thinner interior trim & lighter plastics containing air bubbles
- Optimised seat structures – save 12kg and 30mm in car length
- Lightweight dashboard cross member
- Lighter running gear – steel to aluminium
- Magnesium roof weighs just 4.5kg
- Brakes are 14.5kg lighter but retain the same braking efficiency
- Fixed bonnet gains 2.5kg
- LED front lights
- Lithium-ion battery
- Compact centre-exit exhaust system to save weight
- 100% Renault Z.E. Hybrid powertrain
- 1.0-litre 3-cylinder 75hp SCe petrol engine
- 400V, 6.7 kWh battery with 66km range
- Innovative patented clutchless 3-gear transmission
- Human Machine Interface – connectivity and real-time eco-driving information