ISO 20574:2019

Road vehicles — Durability test method for starter motor for stop and start system

This document defines requirements and recommendations for starter motor durability testing of 12 V start systems for internal combustion engines. This includes test methods, test procedures and capabilities of test benches.

Véhicules routiers — Méthodes de test d'endurance pour les démarreur stop and start system

General Information

• Status: Published
• Publication Date: 23-Apr-2019
• ICS: 43.060.50 - Electrical and electronic equipment. Control systems
• Technical Committee: ISO/TC 22/SC 32 - Electrical and electronic components and general system aspects
• Drafting Committee: ISO/TC 22/SC 32/WG 7 - Functional characteristics of starting devices and electrical generators
• Current Stage: 9020 - International Standard under periodical review
• Start Date: 15-Apr-2024
• Completion Date: 15-Apr-2024

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20574
First edition
2019-04
Road vehicles — Durability test
method for starter motor for stop and
start system
Véhicules routiers — Méthodes de test d'endurance pour les
démarreur stop and start system
Reference number
ISO 20574:2019(E)
©
ISO 2019

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ISO 20574:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2019 – All rights reserved

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ISO 20574:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
4 Planning of durability test . 4
4.1 Determination of durability test types . 4
4.2 Determination of durability test conditions . 4
4.3 Definition of cranking time, overrunning time . 7
5 Test bench equipment and information. 9
5.1 Test bench structure . 9
5.2 Minimum requirements of test bench . 9
5.3 Test bench measuring capabilities and channel list . 9
5.4 Test stop criteria .10
6 Detailed test procedures .11
6.1 Test procedure .11
6.1.1 General.11
6.1.2 Installation and setup stage for engine or engine simulator .11
6.1.3 Pre-check stage .12
6.1.4 Test execution stage .12
6.1.5 Post processing and reporting stage .
...