Reducing the consumption of gasoline vehicles - IFP is developing a new prototype based on the Renault Velsatis

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Reducing the consumption of gasoline vehicles - IFP is developing a new prototype based on the Renault Velsatis

29 April 2008

In partnership with Faurecia Système d'Échappement and Honeywell Turbo Technologies and with the contribution of Renault, IFP has developed a new prototype gasoline engine, based on the Renault Velsatis, combining downsizing technologies and an innovative approach using direct fuel injection and optimized scavenging of residual burnt gases. This demonstration vehicle outperforms the conventional engine by 20% in fuel savings and CO₂ emissions in a standardized cycle.

To address the fuel consumption and CO₂ emissions reduction issues of gasoline engines, IFP has been focusing on the downsizing approach for 10 years. This concept consists in reducing engine displacement and adding a turbocharger to keep performance in line with the original engine while reducing fuel consumption. For this demonstrator, IFP has developed a 1.8-liter engine with a double camshaft phase shifter and a turbocharger. The resulting performance is equivalent to that of a 3-liter engine: 340 Nm at 1500 rpm and 147 kW (200 bhp) at 5500 rpm.

On the environmental side, pollutant emissions comply with the Euro 5 European standard.

IFP has implemented the different stages of development: definition of vehicle and engine specifications, design and manufacture of prototype parts, engine development tests, engine control, and finally vehicle and engine calibration.

This project is an integral part of IFP’s research strategy aiming at developing innovative powertrain technologies for clean, fuel-efficient vehicles.

IFP is a world-class public-sector research and training center, aimed at developing the technologies and materials of the future in fields of energy, transport and the environment. It provides public players and industry with innovative solutions for a smooth transition to the energies and materials of tomorrow – more efficient, more economical, cleaner and sustainable.