BS ISO 28580:2018
$167.15
Passenger car, truck and bus tyre rolling resistance measurement method. Single point test and correlation of measurement results
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 42 |
This document specifies methods for measuring rolling resistance, under controlled laboratory conditions, for new pneumatic tyres designed primarily for use on passenger cars, trucks and buses. This document is not applicable to tyres intended for temporary use only. It includes a method for correlating measurement results to allow inter-laboratory comparisons. It is designed to facilitate international cooperation and, possibly, regulation building.
Measurement of tyres using this method enables comparisons to be made between the rolling resistance of new test tyres when they are free-rolling straight ahead, in a position perpendicular to the drum outer surface, and in steady-state conditions.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Test methods 5 Test equipment 5.1 General |
| 13 | 5.2 Drum specifications 5.2.1 Diameter 5.2.2 Surface 5.2.3 Width 5.3 Measuring rim 5.4 Load, alignment, control and instrumentation accuracies 5.5 Thermal environment 5.5.1 Reference conditions 5.5.2 Alternative conditions 6 Test conditions 6.1 General |
| 14 | 6.2 Test speeds 6.3 Test load 6.4 Test inflation pressure 6.5 Duration and speed |
| 15 | 7 Test procedure 7.1 General 7.2 Thermal conditioning 7.3 Pressure adjustment 7.4 Warm-up 7.5 Measurement and recording |
| 16 | 7.6 Measurement of parasitic losses 7.6.1 General 7.6.2 Skim test reading |
| 17 | 7.6.3 Deceleration method 7.7 Allowance for machines exceeding σm criterion 8 Data interpretation 8.1 Determination of parasitic losses 8.1.1 General 8.1.2 Force method at tyre spindle |
| 18 | 8.1.3 Torque method at drum axis 8.1.4 Power method at drum axis 8.1.5 Deceleration method |
| 19 | 8.2 Rolling resistance calculation 8.2.1 General 8.2.2 Force method at tyre spindle 8.2.3 Torque method at drum axis 8.2.4 Power method at drum axis 8.2.5 Deceleration method |
| 20 | 9 Data analysis 9.1 Rolling resistance coefficient 9.2 Temperature correction |
| 21 | 9.3 Drum diameter correction 9.4 Measurement result |
| 22 | 10 Measurement machines alignment and monitoring requirements 10.1 General 10.2 Conditions for reference machine 10.3 Conditions for candidate machine |
| 23 | 10.4 Alignment tyre requirements 10.5 Alignment procedure |
| 25 | Annex A (normative) Test equipment tolerances |
| 28 | Annex B (informative) Measurement methods of moment of inertia for drum and tyre assembly — Deceleration method |
| 33 | Annex C (informative) Test rim runout |
| 34 | Annex D (informative) Publications of tyre standards organizations |
| 35 | Annex E (informative) Example for larger truck bus warm-up duration |
| 37 | Annex F (informative) Example for machine drift evaluation |
| 40 | Bibliography |
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BS ISO 28580:2018 – TC:2020 Edition
Tracked Changes. Passenger car, truck and bus tyre rolling resistance measurement method. Single point test…
