Evaluating Synergies between Fuels and Near Term Powertrain Technologies through Vehicle Drive Cycle and Performance Simulation Mahle Powertrain Limited

Format:

Conference/Event

Author/Creator:

Bisordi, Bisordi, author.

Contributor:

Ali, Rana

Bassett, Michael

OudeNijeweme, Dave

Stansfield, Philip

Williams, John

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

The main focus nowadays for the development of future vehiclepowertrain systems is the improvement in fuel efficiency alongsidethe reduction of pollutant emissions and greenhouse gasses, mostnotably carbon dioxide.The automotive community is already engaged in seeking solutionsto these issues, however, the ideal solution, namely zero emissionvehicle is still regarded as being a long way from fruition for themass market. In the meantime steps are being taken, in terms ofengineering development, towards improved fuel efficiency andsustainability of relatively conventionally powered vehicles.One approach to the decarbonization of road vehicles is tosupplement existing fossil fuels with sustainable biofuels.The present study examines the effect of a variety ofgasoline/alcohol fuel blends on the performance of spark ignitionengine vehicles and the potential of suitable "near tomarket" technology, using a combination of dynamometermeasurements for a high technology downsized engine, running on avariety of fuel blends, and a detailed vehicle simulation model.Fuel consumption, and hence CO₂ emissions, results are presentedfor the technology and fuel combinations over a number oflegislative and "real world" drive-cycles.Vehicle simulation was also used to investigate vehicletransient response, which is key to successful engine downsizing. Amodel was developed, and is presented here, to enable theassessment of the influence of the torque build-up of aturbocharged engine upon vehicle performance. The successfulimplementation of this model allowed results from transient enginedynamometer testing to be translated into vehicle accelerationtimes.The outcome of this analysis provides a recommendation forsuitable fuel and technology combinations for the development ofpassenger car engines, for the near- to mid-term time frame, thatdeliver a significant reduction in CO₂ while maintaining"driveability." It is shown that tank-to-wheel reductionsof up to 38% in CO₂ emissions are possible with currently availabletechnologies across the NEDC drive-cycle. The correct biofuelblends with RON levels between 100 and 102 offer the majority ofthe benefits and are shown to enable significant furthertank-to-wheel CO₂ reduction potential

Notes:

Vendor supplied data

Publisher Number:

2012-01-0357

Access Restriction:

Restricted for use by site license