VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION

A coast-down test is carried out in cases when there is a need for the exact expression of the forces acting on a road vehicle during its coast-down. These forces act mainly against the vehicle’s movement due to air and tyre rolling resistance. Knowledge of the course of these forces throughout the...

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Main Authors: Branislav ŠARKAN, Tomáš SKRÚCANÝ, Štefánia SEMANOVÁ, Radovan MADLEŇÁK, Andrzej KURANC, Marie SEJKOROVÁ, Jacek CABAN
Format: Article
Language:English
Published: Silesian University of Technology 2018-03-01
Series:Scientific Journal of Silesian University of Technology. Series Transport
Subjects:
Online Access:http://sjsutst.polsl.pl/archives/2018/vol98/161_SJSUTST98_2018_Sarkan_Skrucany_Semanova_Madlenak_Kuranc_Sejkorova_Caban.pdf
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author Branislav ŠARKAN
Tomáš SKRÚCANÝ
Štefánia SEMANOVÁ
Radovan MADLEŇÁK
Andrzej KURANC
Marie SEJKOROVÁ
Jacek CABAN
author_facet Branislav ŠARKAN
Tomáš SKRÚCANÝ
Štefánia SEMANOVÁ
Radovan MADLEŇÁK
Andrzej KURANC
Marie SEJKOROVÁ
Jacek CABAN
author_sort Branislav ŠARKAN
collection DOAJ
description A coast-down test is carried out in cases when there is a need for the exact expression of the forces acting on a road vehicle during its coast-down. These forces act mainly against the vehicle’s movement due to air and tyre rolling resistance. Knowledge of the course of these forces throughout the vehicle’s movement range is also a requirement when measuring fuel consumption with a roller performance dynamometer. The reason is that this device has to load the rollers by force or performance corresponding to the given vehicle, while testing it during various driving cycles. For approval purposes, the requirements for this type of test are described in the applicable regulations, i.e., UNECE Regulations No. 83 and No. 101, or the newly developed Worldwide Harmonized Light Vehicles Test Procedure (WLTP). Slovak Technical Standard STN 30 0556 also contains detailed procedures for carrying out the test. The authors of this paper have taken into account both types of technical regulations in order to conduct coast-down tests on chosen vehicles. The results are usable in terms of measuring fuel consumption on a roller dynamometer. Furthermore, the vehicle’s economic performance in normal operation mode can be also assumed with these results.
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spelling doaj.art-fc3dad0798e34dd784d75bc5388a6b1c2022-12-21T22:35:49ZengSilesian University of TechnologyScientific Journal of Silesian University of Technology. Series Transport0209-33242450-15492018-03-019816117210.20858/sjsutst.2018.98.15VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTIONBranislav ŠARKANTomáš SKRÚCANÝŠtefánia SEMANOVÁRadovan MADLEŇÁKAndrzej KURANCMarie SEJKOROVÁJacek CABANA coast-down test is carried out in cases when there is a need for the exact expression of the forces acting on a road vehicle during its coast-down. These forces act mainly against the vehicle’s movement due to air and tyre rolling resistance. Knowledge of the course of these forces throughout the vehicle’s movement range is also a requirement when measuring fuel consumption with a roller performance dynamometer. The reason is that this device has to load the rollers by force or performance corresponding to the given vehicle, while testing it during various driving cycles. For approval purposes, the requirements for this type of test are described in the applicable regulations, i.e., UNECE Regulations No. 83 and No. 101, or the newly developed Worldwide Harmonized Light Vehicles Test Procedure (WLTP). Slovak Technical Standard STN 30 0556 also contains detailed procedures for carrying out the test. The authors of this paper have taken into account both types of technical regulations in order to conduct coast-down tests on chosen vehicles. The results are usable in terms of measuring fuel consumption on a roller dynamometer. Furthermore, the vehicle’s economic performance in normal operation mode can be also assumed with these results.http://sjsutst.polsl.pl/archives/2018/vol98/161_SJSUTST98_2018_Sarkan_Skrucany_Semanova_Madlenak_Kuranc_Sejkorova_Caban.pdfcoast-down methodvehicle resistanceaerodynamic dragtyre rolling resistancefuel consumption
spellingShingle Branislav ŠARKAN
Tomáš SKRÚCANÝ
Štefánia SEMANOVÁ
Radovan MADLEŇÁK
Andrzej KURANC
Marie SEJKOROVÁ
Jacek CABAN
VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
Scientific Journal of Silesian University of Technology. Series Transport
coast-down method
vehicle resistance
aerodynamic drag
tyre rolling resistance
fuel consumption
title VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
title_full VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
title_fullStr VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
title_full_unstemmed VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
title_short VEHICLE COAST-DOWN METHOD AS A TOOL FOR CALCULATING TOTAL RESISTANCE FOR THE PURPOSES OF TYPE-APPROVAL FUEL CONSUMPTION
title_sort vehicle coast down method as a tool for calculating total resistance for the purposes of type approval fuel consumption
topic coast-down method
vehicle resistance
aerodynamic drag
tyre rolling resistance
fuel consumption
url http://sjsutst.polsl.pl/archives/2018/vol98/161_SJSUTST98_2018_Sarkan_Skrucany_Semanova_Madlenak_Kuranc_Sejkorova_Caban.pdf
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