ISO 23373:2024
(Main)Heavy commercial vehicles and buses — Vehicle dynamics simulation and validation — Tyre model for lateral estimation of heavy vehicle combinations operated at dry paved road surface
Heavy commercial vehicles and buses — Vehicle dynamics simulation and validation — Tyre model for lateral estimation of heavy vehicle combinations operated at dry paved road surface
This document specifies a generic tyre model and model parameters for calculating lateral tyre forces, for use in lateral stability simulations of heavy commercial vehicle combinations with test cases according to ISO 14791. This tyre model is parameterized by easily understandable characteristics which can be estimated from tyre measurement data. If tyre data is not available, the parameters proposed in this document can be used. One typical application area of this document is the comparing and ranking of various vehicle combination configurations with respect to on-road lateral and roll stability. Such an assessment is usually performed at close to constant speed levels typical for public roads, usually higher than 40 km/h. The tyre model, however, can be useful for both high- and low-speed manoeuvring. This tyre model is relevant for representing the lateral performance of tyres on a vehicle combination when the longitudinal forces are insignificant, typically less than 10 % of the peak longitudinal friction utilization. The tyre model can be used for normal forces ranging from zero to twice the nominal normal force of the tyre. This tyre model has been developed for moderate lateral slip conditions; it is important that the model is used with care for scenarios where tyre slip angle exceeds 15°. This tyre model is suitable for vehicle models operating in the yaw and roll plane which naturally include vertical load transfer between the wheels during manoeuvring. The tyre model can also be used in models with less complexity such as pure yaw plane models. This document applies to heavy vehicles, including commercial vehicles, commercial vehicle combinations, buses and articulated buses as defined in ISO 3833 (trucks and trailers with a maximum weight above 3,5 tonnes and buses and articulated buses with a maximum weight above 5 tonnes, according to ECE and EC vehicle classification, categories M3, N2, N3, O3 and O4).
Véhicules utilitaires lourds et bus — Simulation et validation de la dynamique du véhicule — Modèle de pneu pour l'estimation latérale des combinaisons de véhicules lourds exploités sur une surface de route pavée sèche
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International
Standard
ISO 23373
First edition
Heavy commercial vehicles
2024-05
and buses — Vehicle dynamics
simulation and validation — Tyre
model for lateral estimation
of heavy vehicle combinations
operated at dry paved road surface
Véhicules utilitaires lourds et bus — Simulation et validation de
la dynamique du véhicule — Modèle de pneu pour l'estimation
latérale des combinaisons de véhicules lourds exploités sur une
surface de route pavée sèche
Reference number
ISO 23373:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
ISO 23373:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO 23373:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Tyre model formulae . 4
4.1 Steady-state calculation .4
4.2 Transient properties . .5
4.3 Standard values of the model parameters .5
Bibliography . 7
© ISO 2024 – All rights reserved
iii
---------------------- Page: 3 ----------------------
ISO 23373:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights
...
International
Standard
ISO 23373
First edition
Heavy commercial vehicles
and buses — Vehicle dynamics
simulation and validation — Tyre
model for lateral estimation
of heavy vehicle combinations
operated at dry paved road surface
Véhicules utilitaires lourds et bus — Simulation et validation de
la dynamique du véhicule — Modèle de pneu pour l'estimation
latérale des combinaisons de véhicules lourds exploités sur une
surface de route pavée sèche
PROOF/ÉPREUVE
Reference number
ISO 23373:2024(en) © ISO 2024
---------------------- Page: 1 ----------------------
ISO 23373:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO 23373:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Tyre model formulae . 4
4.1 Steady-state calculation .4
4.2 Transient properties . .5
4.3 Standard values of the model parameters .5
Bibliography . 7
PROOF/ÉPREUVE
© ISO 2024 – All rights reserved
iii
---------------------- Page: 3 ----------------------
ISO 23373:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability
...
2023-12
ISO/DIS PRF 23373.2:2023(E)
ISO /TC 22/SC 33/WG 6
Secretariat: DIN
Date: 2024-02-27
Heavy commercial vehicles and buses — Vehicle dynamics
simulation and validation — Tyre model for lateral estimation of
heavy vehicle combinations operated at dry paved road surface
Véhicules utilitaires lourds et bus — Simulation et validation de la dynamique du véhicule — Modèle de pneu
pour l'estimation latérale des combinaisons de véhicules lourds exploités sur une surface de route pavée sèche
PROOF
---------------------- Page: 1 ----------------------
ISO/PRF 23373:2024(Een)
© ISO 20232024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2024 – All rights reserved
© ISO 2024 – All rights reserved
ii
---------------------- Page: 2 ----------------------
ISO/PRF 23373:2024(Een)
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Tyre model formulae . 5
4.1 Steady-state calculation . 5
4.2 Transient properties . 5
4.3 Standard values of the model parameters . 6
Bibliography . 8
Foreword iv
Introduction v
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Tyre model formulae 4
4.1 Steady state calculation 4
4.2 Transient properties 5
4.3 Standard values of the model parameters 6
Bibliography 7
© ISO 2024 – All rights reserved iii
© ISO 2024 – All rights reserved
iii
---------------------- Page: 3 ----------------------
ISO/PRF 23373:2024(Een)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicabil
...
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