Managing the Increased Use of Turbochargers and Bio-Fuels

TECHNOLOGY FOCUSManaging the Increased Use of Turbochargers and Bio-FuelsFRANKFURT, GERMANY (Sept. 20, 2007) - Delphi Corp. is launching a new, high-performance Gasoline Direct Injection (GDi) system that is optimized for the increasing use of turbochargers and bio-fuels as a flexible, cost-effective solution to global pressures on emissions and CO2 emissions. Supported by its global network of powertrain technical centers, Delphi is poised to supply the total system -- including injectors, pumps, engine control units, electrical/electronic systems, fuel rails and fuel handling hardware -- or individual components.  The heart of Delphi's homogeneous Multec10 GDi system is a new multi-hole injector, designed for homogeneous lambda=1 combustion and available with spray preparation options optimized for a wide variety of combustion chamber shapes and static flow requirements. Highly refined solenoid technology allows very fast opening and closing, which enables the Delphi system to provide a linear range of more than 15 (the relationship between maximum fuel flow and minimum fuel flow), substantially higher than today's best production systems. Delphi's new GDi system is targeted to meet today's most demanding emissions requirements -- including SULEV and EURO 6 -- without the cost of a complex after-treatment system. After engine start, multiple injection pulses enable accelerated catalyst heating reducing unburned hydrocarbons, thereby allowing further cost savings by reducing catalyst precious metal content. Coupled with Delphi's components is a comprehensive library of Engine Management Systems (EMS) control algorithms. This set of "state-of-the-art" algorithms uses a torque-based strategy that seamlessly aligns the driver's command to the powertrain output, thus simplifying the application of the Delphi system to various vehicles over a wide array of regional and customer driven requirements. Delphi continues to lead the industry in cost and flexibility through the use of innovative control algorithm solutions. Multec GDi is ready for applications engineering today, with production expected early 2010. Delphi predicts that about 40 percent of new European gasoline vehicles will be fitted with direct gas systems by 2010. "Delphi's GDi system takes into account two key trends that we see in the requirement for gas injection systems," explains Mark Shost, Delphi Engineering Director for Engine Management Systems and Products. "First, there will be rapid growth in turbocharging as engines are downsized to reduce CO2 emissions. Second, we see bio-fuel content of gasoline increasing, particularly in the United States and Europe."(Source: Delphi Corp.)