ISO/PRF 4273

Intelligent transport systems — Automated braking during low-speed manoeuvring (ABLS) — Requirements and test procedures

Systèmes de transport intelligents — Freinage automatique lors de manœuvres à basse vitesse (ABLS) — Exigences et procédures d'essai

General Information

• Status: Not Published
• ICS: 03.220.20 - Road transport
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204/WG 14 - Vehicle/roadway warning and control systems
• Current Stage: 5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
• Completion Date: 11-Oct-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 4273
First edition
Intelligent transport systems —
Automated braking during low-speed
manoeuvring (ABLS) — Requirements
and test procedures
Systèmes de transport intelligents — Freinage automatique lors de
manœuvres à basse vitesse (ABLS) — Exigences et procédures d'essai
PROOF/ÉPREUVE
Reference number
ISO 4273:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO 4273:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
PROOF/ÉPREUVE © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 4273:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Basic system functionality .3
4.1 Operating conditions . 3
4.2 Classification of ABLS . 4
4.2.1 ABLS types . 4
4.2.2 Performance classification . 4
4.2.3 ABLS classification overview . 5
4.3 Principle of operation . 5
4.3.1 General . 5
4.3.2 Object detection . 6
4.3.3 Situation evaluation. 6
4.3.4 Braking activation. 6
4.4 Information to the driver . 6
5 Function and performance requirements for ABLS . 6
5.1 General .
...

© ISO 2022 – All rights reserved
ISO/DIS PRF 4273:2022(E)
ISO /TC 204/WG 14
Secretariat: XXXX ANSI
2022Date: 2023-10-11-04
Intelligent transport systems — Automated braking during low-
speed manoeuvring (ABLS) — Requirements and test procedures
Systèmes de transport intelligents — Freinage automatique lors de manœuvres à basse vitesse (ABLS) —
Exigences et procédures d'essai
FDIS stage
© ISO 2023 – All rights reserved

---------------------- Page: 1 ----------------------
ISO/DISPRF 4273:20222023(E)
© ISO 20222023
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


viii © ISO 2022 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/DISPRF 4273:20222023(E)
Content
Foreword v
Introduction vi
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Basic system functionality 3
4.1 Operating conditions 3
4.2 Classification of ABLS 4
4.2.1 ABLS types 4
4.2.1.1 Type A “manual driving mode” 4
4.2.1.2 Type B “assisted parking mode” 4
4.2.1.3 Type C “partially automated parking mode” 4
4.2.2 Performance classification 5
4.2.2.1 Class "base" 5
4.2.2.2 Class "enhanced" 5
4.2.3 ABLS classification overview 5
4.3 Principle of operation 6
4.3.1 Object detection 6
4.3.2 Situation evaluation 6
4.3.3 Braking activation 6
4.4 Information to the driver 6
5 Function and performance requirements for ABLS 6
5.1 General 6
5.2 Addressed situations 6
5.3 Perception requirements 7
5.4 Vehicle motion control requirements 7
5.5 Function flow 7
6 Performance test requirements 8
6.1 General 8
6.2 Environmental conditions 8
6.3 Boundary of parking space 9
6.4 Test object 9
6.5 General test criteria 9
6.6 Test procedure and criteria 9
6.6.1 Overview 9
6.6.2 Performance test for type A 10
6.6.2.1 Overview 10
© ISO 2022 2023 – All rights reserved v iii

---------------------- Page: 3 ----------------------
ISO/DISPRF 4273:20222023(E)
6.6.2.2 Test procedure type A base (A1) 10
6.6.2.3 Test criteria type A base (A1) 12
6.6.2.4 Test procedure type A enhanced (A2) 12
6.6.2.5 Test criteria type A enhanced (A2) 14
6.6.3 Performance test for type B 15
6.6.3.1 General 15
6.6.3.2 Test procedure type B base (B1) 15
6.6.3.3 Test criteria type B base (B1) 16
6.6.3.4 Test procedure type B enhanced (B2) 16
6.6.3.5 Test criteria type B enhanced (B2) 16
6.6.4 Performance test for type C 16
6.6.4.1 Test procedure type C base (C1) 17
6.6.4.2 Test criteria type C base (C1) 19
6.6.4.3 Test Procedure type C enhanced (C2) 19
6.6.4.4 Test criteria type C enhanced (C2) 21
Annex A (informative) Recommended preparation procedure for curve driving 22
Bibliography 23
viiv © ISO 2022 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/DISPRF 4273:20222023(E)
Contents
Foreword . vi
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Basic system functionality . 3
4.1 Operating conditions . 4
4.2 Classification of ABLS . 5
4.2.1 ABLS types .
...