This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
The Effect of Diesel Density, Injection Technology and External Variables on the Acceleration Performance of Modern Passenger Cars
Technical Paper
2007-01-0063
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Diesel engines operate with an open-loop fuel control system and the engine torque is therefore affected by variations in the fuel density. Five vehicles, representing a range of different injection technologies, were tested on six fuels having densities ranging from 819.5 to 840.1 kg/m3 @ 15°C. The results indicated that rotary distributor-pump systems were considerably more sensitive to fuel density variations than the common-rail systems or unit-injectors. The fuel density variations caused acceleration performance deviations ranging over 7%. Various external factors (vehicle loading, air conditioner, under-inflated tires, open windows, headwinds, road gradients and different road surfaces) caused deviations in the acceleration performance of comparable magnitudes.
Recommended Content
Technical Paper | The Application of an Enhanced Ignition Delay Model to HCCI Engines and Comparison to Engine Measurements |
Authors
Citation
Yates, A. and Rabe, T., "The Effect of Diesel Density, Injection Technology and External Variables on the Acceleration Performance of Modern Passenger Cars," SAE Technical Paper 2007-01-0063, 2007, https://doi.org/10.4271/2007-01-0063.Also In
References
- Tat, M. E. Van Gerpen, J. H. “Measurement of Biodiesel, Speed of Sound and Its Impact on Injection Timing” NREL final report NREL/SR-510-31462 Feb 2003
- Rose, J. W. Cooper, J. R. “ Technical Data on Fuel ” 7th British National Committee, World Energy Conference London 1977
- Yates, A. D. B. Mkwanazi S. “Methodology for Determining Octane Response at Different Altitudes for Vehicles Equipped with Knock Sensors” SAE paper 2002-01-1663
- Bosch “ Automotive Handbook ” 4th 1996
- Gillespie, T P “ Fundamentals of Vehicles Dynamics ” SAE 1992
- Lucas, G. G. “ Road Vehicle Performance ” Gordon & Breach Science Publishers Switzerland 1994
- Payri, F. Arrègle, J. Fenollosa, C. Belot, G. Delage, A. Schaberg, P. Myburgh, I. Botha, J. “Characterisation of the Injection-Combustion Process in a Common Rail D.I. Diesel Engine Running with Sasol Fischer-Tropsch Fuel” SAE 2000-01-1803 2000
- http://www.freerepublic.com/focus/f-news/1625440/posts
- http://autos.msn.com/advice/article.aspx?contentid=4023966
- Scibor-Rylski, A. J. “ Road Vehicle Aerodynamics ” 2nd J Wiley & Sons 1984