|The technologies of the Logan Renault eco² Concept. Click to enlarge. Credits: Hubert Vincent|
Renault has unveiled the Logan Renault eco2 Concept, the experimental car it will take to the upcoming Challenge Bibendum in Shanghai, China. The Logan Renault eco2 has estimated CO2 emissions of 97 g/km.
The Logan Renault eco2 Concept is powered by a B30-compatible 1.5 dCi diesel engine (63kW/85hp) and benefits from a set of technical solutions and optimizations that serve as development pathways for future Renault vehicles.
The powertrain features modified pistons and injection system for enhanced combustion; detail work on tolerances and lubrication to minimize friction; and new gearbox ratios.
The combination of a VORTEX generator (a small, drag-reducing, roof-mounted feature); a flexible splitter under the front bumper; wheel fairings and a rear lip spoiler have enabled the Cd to be cut from the 0.36 of a standard Logan to 0.29.
The Logan Renault eco2 Concept is equipped with low rolling resistance Michelin Pure tires (185/65 R15). The camber and toe settings, as well as the braking system, have also been optimized as part of the effort to combat friction.
The work accomplished on those three fronts enables Logan Renault eco2 Concept to offer CO2 emissions of 97g/km (NEDC combined cycle), equivalent to fuel consumption of 3.8 liters/100km.
The dashboard of Logan Renault eco2 Concept is also equipped with a gearshift indicator which permits the driver to make an active contribution to the optimization of fuel consumption and reduce CO2 emissions. By taking full advantage of this feature’s benefits, it is possible to take Logan Renault eco2 Concept's CO2 emissions performance below its homologated score of 97g/km.
The eco2 appellation, introduced earlier this year, requires the vehicle to be produced in an ISO 14001-certified factory; to emit less than 140g of CO2/km, or else run on biofuel; and to be 95% end-of-life reusable, while at least 5% of the plastics in the vehicle must be sourced from recycling. (Earlier post.) Renault now has eco2 models in 40% of the versions that make up its range.
Renault manufactured the Logan Renault eco2 Concept was made in the Romanian factory of Pitesti, which received ISO 14001 certification in 2005. 8.3 per cent of the plastics it contains come from recycling and 95 per cent of its mass is reusable.