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ISO 19377:2017

(Main)

Heavy commercial vehicles and buses — Emergency braking on a defined path — Test method for trajectory measurement

Heavy commercial vehicles and buses — Emergency braking on a defined path — Test method for trajectory measurement

ISO 19377:2017 describes test methods for determining the deviation of the path travelled by a vehicle during a braking manoeuvre induced by an emergency braking system from a pre-defined desired path. The purpose of this document is the evaluation of the vehicle path during and following the system intervention. The corrective steering actions for keeping the vehicle on the desired path can be applied either by the driver or by a steering machine or by a driver assistance system. By making this document open for either open-loop or closed-loop testing, it is possible to apply the test method for evaluating how well the vehicle can be kept within user-defined lane markings after the system intervention, and also for evaluating the precision of the interaction between the emergency braking system and an active lane keeping system. This document applies to heavy vehicles equipped with an advanced emergency braking system (AEBS), including commercial vehicles, commercial vehicle combinations, buses and articulated buses as defined in ISO 3833 (trucks and trailers with maximum weight above 3,5 tonnes and buses and articulated buses with maximum weight above 5 tonnes, according to ECE and EC vehicle classification, categories M3, N2, N3, O3 and O4). NOTE The test method is intended to evaluate the entire vehicle behaviour, not for defining system requirements for the AEBS, which is done in the respective standards created by ISO/TC 204.

Véhicules utilitaires lourds et autobus — Freinage d’urgence sur un passage défini — Méthodes d’essai pour la mesure de trajectoire

General Information

Status
Published
Publication Date
03-Dec-2017
ICS
43.080.01 - Commercial vehicles in general
Technical Committee
ISO/TC 22/SC 33 - Vehicle dynamics and chassis components
Drafting Committee
ISO/TC 22/SC 33/WG 6 - Vehicle dynamics of heavy commercial vehicles and buses
Current Stage
9092 - International Standard to be revised
Completion Date
26-Feb-2024
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ISO 19377:2017 - Heavy commercial vehicles and buses -- Emergency braking on a defined path -- Test method for trajectory measurementISO 19377:2017 - Heavy commercial vehicles and buses -- Emergency braking on a defined path -- Test method for trajectory measurement
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ISO 19377:2017 - Heavy commercial vehicles and buses -- Emergency braking on a defined path -- Test method for trajectory measurement
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Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 19377
First edition
2017-11
Heavy commercial vehicles and
buses — Emergency braking on a
defined path — Test method for
trajectory measurement
Véhicules utilitaires lourds et autobus — Freinage d’urgence sur un
passage défini — Méthodes d’essai pour la mesure de trajectoire
Reference number
ISO 19377:2017(E)
©
ISO 2017

---------------------- Page: 1 ----------------------
ISO 19377:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 19377:2017(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Variables . 2
6 Measuring equipment . 3
7 Test conditions . 3
7.1 General . 3
7.2 Test track and ambient conditions . 4
7.3 Test vehicle . 4
7.3.1 General vehicle condition . 4
7.3.2 Loading condition . 4
7.3.3 Number of test runs . 4
8 Test methods . 4
8.1 Test method for braking straight ahead . 4
8.1.1 Initial driving condition . 4
8.1.2 Definition of the desired path and track.
...

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