ISO 23375:2023

INTERNATIONAL ISO
STANDARD 23375
First edition
2023-02
Intelligent transport systems —
Collision evasive lateral manoeuvre
systems (CELM) — Requirements and
test procedures
Systèmes de transport intelligents — Systèmes de manœuvre latérale
d'évitement de collision (CELM) — Exigences et procédures d'essai
Reference number
© ISO 2023
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Published in Switzerland
ii
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms.2
4.1 Symbols . 2
4.2 Abbreviated terms . 3
5 System overview . 3
5.1 General . 3
5.2 Classification . 4
6 General functional requirements . 4
6.1 Functional elements. 4
6.2 State transition . 4
6.2.1 Definition of states . 5
6.2.2 Transition conditions . 5
6.3 Response to failure during CELM active state . 6
6.4 Status indication . 6
6.4.1 Active state . 6
6.4.2 Optional warning . 7
6.4.3 Failure . 7
6.4.4 CELM switch on/off status . 7
6.5 Status symbols . 7
6.6 Minimization of vehicle lateral movement by CELM . 7
6.7 Driver override . 7
6.8 User-adjustable intervention thresholds . 7
6.9 Information to the user in the manual . 7
7 Operating conditions and requirements for Type 1 systems . 7
7.1 General . 7
7.2 Object condition . . 8
7.2.1 Object type . 8
7.2.2 Amount of lateral offset . 8
7.3 Activation speed of subject vehicle . 9
7.4 Road condition . 10
7.5 Operational limit . 10
7.5.1 Operation on roads with lane markings . 10
7.5.2 Operation on roads without lane markings . 11
8 Operating conditions and requirements for Type 2 systems .12
8.1 General .12
8.2 Object condition . . 13
8.3 Activation speed of subject vehicle . 13
8.4 Additional considerations for support beyond collision avoidance .13
9 Performance evaluation test methods .13
9.1 General .13
9.2 Test conditions . 13
9.2.1 Environmental conditions . 13
9.2.2 Test course conditions . 13
9.2.3 Test vehicle conditions . 14
9.2.4 Test system installation and configuration. 14
9.2.5 Data recording . 14
9.2.6 Test target. 14
iii
9.3 Type 1 test procedures . 15
9.3.1 Test case selection . 15
9.3.2 Test parameters . 15
9.3.3 Test target selection and positioning . 17
9.3.4 Test procedures . 20
9.3.5 Pass criteria . 21
9.4 Type 2 test procedures . 21
9.4.1 Test equipment . 21
9.4.2 Trajectory and torque data . 22
9.4.3 Test procedure.25
9.4.4 Pass criteria . 26
Annex A (informative) Examples of use cases for Type 1 systems.27
Annex B (informative) Additional information for Type 2 testing .30
Bibliography .31
iv
Foreword
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