ISO 24650

Road vehicles — Sensors for automated driving under adverse weather conditions — Assessment of the cleaning system efficiency

Véhicules routiers — Capteurs pour la conduite automatisée dans des conditions météorologiques défavorables — Évaluation de l'efficacité du système de nettoyage

General Information

• Status: Not Published
• ICS: 43.040.10 - Electrical and electronic equipment
• ICS: 43.040.15 - Car informatics. On board computer systems
• Technical Committee: ISO/TC 22/SC 35 - Lighting and visibility
• Drafting Committee: ISO/TC 22/SC 35/WG 3 - Visibility

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 24650
ISO/TC 22/SC 35
Road vehicles — Sensors for
Secretariat: UNI
automated driving under adverse
Voting begins on:
weather conditions — Assessment
2024-06-14
of the cleaning system efficiency
Voting terminates on:
2024-08-09
Véhicules routiers — Capteurs pour la conduite automatisée dans
des conditions météorologiques défavorables — Évaluation de
l'efficacité du système de nettoyage
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 24650:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 24650:2024(en)
International
Standard
ISO/FDIS 24650
ISO/TC 22/SC 35
Road vehicles — Sensors for
Secretariat: UNI
automated driving under adverse
Voting begins on:
weather conditions — Assessment
of the cleaning system efficiency
Voting terminates on:
Véhicules routiers — Capteurs pour la conduite automatisée dans
des conditions météorologiques défavorables — Évaluation de
l'efficacité du système de nettoyage
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 24650:2024(en) © ISO 2024

ii
ISO/FDIS 24650:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Principle of the cleaning efficiency assessment . 2
5 General testing conditions . 5
5.1 Installation .5
5.2 No-load cleaning cycle .5
5.3 Surface contamination .5
5.4 Environmental conditions .5
5.5 Sensor surface state preparation .6
5.5.1 Pre-cleaning.6
5.5.2 Surface tension . .6
5.6 Lighting conditions .7
5.7 Camera and shooting conditions .7
5.8 Specific situations .7
5.8.1 Sensor surface .7
5.8.2 Cleaning system .7
5.9 Test session .7
6 Dust/mud testing . 7
6.1 Test mixture preparation .7
6.2 Test equipment .8
6.3 Preparation of the equipment .8
6.4 Test procedure .8
7 Frost/ice testing .11
7.1 Frost/ice preparation .11
7.2 Test equipment .11
7.3 Preparation of the equipment .11
7.4 Test procedure .11
8 Mist/rain testing .12
8.1 Water specification . 12
8.2 Test equipment . 12
8.3 Preparation of the equipment . 12
8.4 Test procedure . 13
9 Assessment of the efficiency of the cleaning system .13
9.1 Picture analysis . 13
9.2 Cleaning system efficiency calculation .14
9.3 Specific areas of interest.14
9.4 Expression of results . .14
Annex A (informative) Selected washer fluids .16
Annex B (informative) Examples of standard dusts . 17
Annex C (informative) Examples of picture analysis .18
Annex D (informative) Example of iterative threshold determination . 19
Annex E (informative) Areas of interest depending on sensor type and geometry .20
Bibliography .21

iii
ISO/FDIS 24650:2024(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 in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 35,
Lighting and visibility.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
ISO/FDIS 24650:2024(en)
Introduction
Vehicles with automated drivin
...

ISO/DISFDIS 24650:2023(E)
ISO /TC 22/SC 35/WG 3
Secretariat: UNI
Date: 2023-102024-05-31
Road Vehicles vehicles — Sensors for automated driving under
adverse weather conditions — Assessment of the cleaning system
efficiency
Véhicules routiers — Capteurs pour la conduite automatisée dans des conditions météorologiques défavorables
— Évaluation de l'efficacité du système de nettoyage
FDIS stage
ISO/DISFDIS 24650:2023(E2024(en)
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
Fax: [phone]
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ii
ISO/DISFDIS 24650:2023(E2024(en)
Contents
Foreword . vi
Introduction . vii
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Principle of the cleaning efficiency assessment . 2
5 General testing conditions . 6
5.1 Installation . 6
5.2 No-load cleaning cycle . 7
5.3 Surface contamination . 8
5.4 Environmental conditions . 8
5.5 Sensor surface state preparation . 9
5.5.1 Pre-cleaning . 9
5.5.2 Surface tension . 10
5.6 Lighting conditions . 10
5.7 Camera and shooting conditions . 10
5.8 Specific situations . 11
5.8.1 Sensor surface . 11
5.8.2 Cleaning system . 11
5.9 Test session . 11
6 Dust/mud testing . 11
6.1 Test mixture preparation . 11
6.2 Test equipment . 11
6.3 Preparation of the equipment . 12
6.4 Test procedure . 12
7 Frost/ice testing . 17
7.1 Frost/ice preparation . 17
7.2 Test equipment . 17
7.3 Preparation of the equipment . 18
7.4 Test procedure . 18
8 Mist/rain testing . 18
8.1 Water specification . 18
8.2 Test equipment . 19
8.3 Preparation of the equipment . 19
8.4 Test procedure . 20
9 Assessment of the efficiency of the cleaning system . 20
9.1 Picture analysis . 20
9.2 Cleaning system efficiency calculation . 21
9.3 Specific areas of interest . 2
9.4 Expression of results . 2
Annex A (informative) Selected washer fluids . 3
Annex B (informative) Examples of standard dusts . 4
Annex C (informative) Examples of picture analysis . 6
iii
ISO/DISFDIS 24650:2023(E2024(en)
Annex D (informative) Example of iterative threshold determination . 8
Annex E (informative) Areas of interest depending on sensor type and geometry . 9
Bibliography . 10

Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Principle of the cleaning efficiency assessment . 4
5 General Testing Conditions . 6
5.1 Installation . 6
5.2 No-load cleaning cycle . 6
5.3 Surface Contamination . 6
5.4 Environmental conditions . 6
5.5 Sensor surface state preparation . 7
5.5.1 Pre-cleaning . 7
5.5.2 Surface Tension . 7
5.6 Lighting Conditions . 7
5.7 Camera and shooting conditions . 8
5.8 Specific situations . 8
5.8.1 Sensor surface . 8
5.8.2 Cleaning system . 8
5.9 Test session . 8
6 Dust / Mud Testing . 9
6.1 Test Mixture preparation . 9
6.2 Test Equipment . 9
6.3 Preparation of the equipment . 9
6.4 Test Procedure . 9
7 Frost / Ice Testing . 13
7.1 Frost / Ice preparation . 13
7.2 Test Equipment . 13
7.3 Preparation of the Equipment . 13
7.4 Test Procedure . 13
8 Mist / Rain Testing . 14
8.1 Water Specification . 14
8.2 Test Equipment . 14
8.3 Preparation of the Equipment . 14
8.4 Test Procedure . 14
9 Assessment of the efficiency of the cleaning system . 16
9.1 Picture analysis . 16
9.2 Cleaning system efficiency calculation . 16
9.3 Specific areas of interest . 17
9.4 Expression of results .
...