BS ISO 16333:2011

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Variables
6 Measuring equipment
7 Test conditions
8 Test procedure
9 Data analysis
Annex A (normative) - Test report - Additional test
        conditions
Annex B (informative) - Error sources

Describes a tilt-table test method for estimating the steady-state rollover threshold of a heavy commercial vehicle or bus, i.e. the maximum lateral acceleration that the test vehicle could sustain in steady-state turning without rolling over.

This International Standard specifies a tilt-table test method for estimating the steady-state rollover threshold of a heavy commercial vehicle or bus, i.e. the maximum lateral acceleration that the test vehicle could sustain in steady-state turning without rolling over.

It is applicable to complete roll units/combinations of roll-coupled vehicle units — e.g. single-unit vehicles, tractor-semitrailer combinations, articulated buses, full trailers, B-train combinations — of commercial vehicles, commercial vehicle combinations, buses or articulated buses as defined in ISO3833, and under Categories M3, N2, N3, O3 and O4 of ECE and EC vehicle regulations (trucks and trailers with maximum weights above 3,5t and buses and articulated buses with maximum weights above 5t).

It does not cover transient, vibratory or dynamic rollover situations; nor does it consider the influences of dynamic stability control systems. Furthermore, the quality of the estimate of the steady-state rollover threshold provided by the test method decreases as the tilt angle required to produce rollover increases. Even so, the results for heavy vehicles with high rollover thresholds can be used for comparing their relative steady-state roll stability.

NOTE For further limitations of the specified test method, see AnnexB.