Comparison of Engine Power Exploitation between Normal and Dynamic Driving in Real Traffic Conditions
Abstract
The increase of cars engine power has reached critical limits,so that further increase would make no sense, since alreadythe real traffic conditions now do not enable its reasonable exploitation.Experiments have confirmed that there is no essentialdifference between the more or less powerful cars in combinedtraffic in and near towns, particularly when fully complyingwith traffic regulations. For the evaluation of the car 'adequacy'a non-dimensional criterion number Nv was proposed.This number 1ises with the rising weight (safety), speed, lowerfuel consumption and faster acceleration. The usual Nv valuesat JOOkm!h are between 1 and 3 for the majority of ordinarycars. Statistics comprising a great number of cars in the past decadesshowed that the said criterion number turned out to be anadequate parameter for the assessment of development trends.Experiments showed that a higher criterion number value inreal traffic does not represent much advantage even in dynamicdriving.References
J. R. Mondt: Cleaner Cars: the Histmy and Technology of
Emission Control, SAE International, Warendale,
, ISBN 0-7680-0222-2
M. Plint, A. Martyr: Engine Testing; Theory and Praxis,
Second Edition, Butterworth-Heinemann Lincare
House, Jordan Hill, Oxford, 1999, ISBN 0-7506-4021-9.
Frey: Data Power: Using Racecar Data Acquisition,
Terry Publishing Inc, Memphis, 1993, ISBN 1-88109-
-601-7.
Walker: Engine menagement: Haynes Publishing,
Sparkford, 2002, ISBN 185960 8353
H. L. Waters: Road Vehicle Fuel Economy, HMSO,
London 1992, ISBN 0 11 551097 4,
D. Schwela, 0. Zali: Urban Traffic Pollution, Spon
Press, London-New York, 2001, ISBN 0 41 923720 8,
'Automobil Revue' Bern, Catalogue 1984 ... 2005
FranciSek Bizjan: Dvotaktni motor - spreminjanje karakteristik motorja v teoriji in praksi, NUK, Ljubljana
, ISVBN 961-90450-0-9
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
