Road vehicles — Vehicle interface for electronic Periodic Technical Inspection (ePTI) — Part 2: Application and communication requirements conformance test plan

This document specifies the conformance test plan for the communication requirements stated in ISO 20730-1 of road vehicles' ePTI-relevant systems and associated measurement and control data as specified in ISO 20730-3, which are subject to the usage of the electronic vehicle interface during the periodic technical inspection (ePTI). The conformance test plan specifies test requirements and expected response behaviour of the system under test (SUT) to verify conformance of a vehicle with respect to ISO 20730-1 and ISO 20730‑3 requirements. This document provides technical information that test results are identical even on different test systems, if the particular test suite and the test system are compliant to the content of this document.

Véhicules routiers — Interface de véhicule pour le contrôle technique périodique électronique (ePTI) — Partie 2: Plan de test de conformité aux exigences des couches application et communication

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Status
Published
Publication Date
15-Nov-2022
Current Stage
6060 - International Standard published
Due Date
28-Jul-2023
Completion Date
16-Nov-2022
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INTERNATIONAL ISO
STANDARD 20730-2
First edition
2022-11
Road vehicles — Vehicle interface
for electronic Periodic Technical
Inspection (ePTI) —
Part 2:
Application and communication
requirements conformance test plan
Véhicules routiers — Interface de véhicule pour le contrôle technique
périodique électronique (ePTI) —
Partie 2: Plan de test de conformité aux exigences des couches
application et communication
Reference number
ISO 20730-2:2022(E)
© ISO 2022
---------------------- Page: 1 ----------------------
ISO 20730-2:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022

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
© ISO 2022 – All rights reserved
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ISO 20730-2:2022(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction .................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ..................................................................................................................................................................................... 1

3 Terms and definitions .................................................................................................................................................................................... 1

4 Abbreviated terms ............................................................................................................................................................................................. 2

5 Conventions ............................................................................................................................................................................................................... 3

6 General test specification considerations ................................................................................................................................ 3

6.1 General ........................................................................................................................................................................................................... 3

6.2 Test conditions ........................................................................................................................................................................................ 3

6.3 SUT (vehicle) requirements ........................................................................................................................................................ 3

6.4 Test system topology ........................................................................................................................................................................ 3

6.5 Configuration of test system and SUT ............................................................................................................................... 4

6.6 CTC definition .......................................................................................................................................................................................... 5

7 Basic principles and conformance test groups .................................................................................................................... 6

7.1 Basic principles ...................................................................................................................................................................................... 6

7.2 Conformance test groups .............................................................................................................................................................. 6

8 Conformance test plan ...................................................................................................................................................................................7

8.1 General ........................................................................................................................................................................................................... 7

8.2 Variables and arrays used in CTCs ........................................................................................................................................ 7

8.3 CTG_1 – Test data link discovery ............................................................................................................................................ 7

8.3.1 CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s) ....................... 7

8.3.2 CTC_1.2 – Test DoIP protocol and supported ePTI-relevant system(s) ............................. 9

8.4 CTG_2 – Test authentication .................................................................................................................................................... 11

8.4.1 CTC_2.1 – Test ePTI external test equipment authentication ................................................. 11

8.4.2 CTC_2.2 – Test ECU(s) authentication ...........................................................................................................12

8.5 CTG_3 – Test supported ePTI-relevant, ECU DID(s), RID(s), and IOCT_DID(s) ............................13

8.5.1 CTC_3.1 – Test supported ECU data identifier(s) ................................................................................13

8.5.2 CTC_3.2 – Test supported ECU routine identifier(s) ........................................................................15

8.5.3 CTC_3.3 – Test supported ECU input/output control identifier(s) ................................... ... 16

8.6 CTG_4 – Test ePTI-relevant data .......................................................................................................................................... 18

8.6.1 CTC_4.1 – Test reported VIN from ECU ....................................................................................................... 18

8.6.2 CTC_4.2 – Test reported vehicle odometer value ............................................................................... 18

8.6.3 CTC_4.3 – Test reported vehicle's software number(s) ................................................................ 19

8.6.4 CTC_4.4 – Test reported information from system ..........................................................................20

8.6.5 CTC_4.5 – Test reported vehicle's ePTI system self-test completion and

system status ........................................................................................................................................... ...........................22

8.7 CTG_5 – Test ePTI-relevant activation ........................................................................................................................... 23

8.7.1 CTC_5.1 – Test ePTI-relevant routines ......................................................................................................... 23

8.7.2 CTC_5.2 – Test ePTI-relevant input/output controls ...................................................................... 24

Bibliography .............................................................................................................................................................................................................................27

iii
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ISO 20730-2:2022(E)
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 documents 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).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www.iso.org/patents).

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 31,

Data communication.
A list of all parts in the ISO 20730 series can be found on the ISO website.

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.
© ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 20730-2:2022(E)
Introduction

Roadworthiness testing is a part of a wider regime designed to ensure that road vehicles are kept

in a safe and environmentally acceptable condition during their use. This regime covers periodic

roadworthiness testing of vehicles and technical roadside inspections of vehicles used for commercial

road transport activities and provides a vehicle registration procedure allowing for the suspension of

a vehicle’s authorisation to be used in road traffic where the vehicle constitutes an immediate risk to

road safety. Periodic testing is the main tool to ensure roadworthiness. Technical roadside inspections

of commercial vehicles are merely complementary to periodic testing.

An ePTI system list, which is defined in ISO 20730-3:2021, summarises ePTI-relevant systems and

specifies a defined name (system), a unique identifier (ePTI system identifier) and a description for

each ePTI system. All the definitions in this document refer to this ePTI system list.

The ISO 20730 series is based on the Open Systems Interconnection (OSI) basic reference model

specified in ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into seven

layers. When mapped on this model, the application protocol and data link framework requirements

specified/referenced in the ISO 20730 series are structured according to Figure 1.

Figure 1 illustrates a standard-based documentation concept, which consists of the following main

clusters:

— vehicle diagnostic communication framework: covers all relevant basic vehicle diagnostic

communication specifications of OSI layers 7, 6 and 5;

— vehicle diagnostic communication use case framework: covers the master specification, which

specifies the use cases and requirements of the subject matter of OSI layer 7;

— presentation layer framework: covers all data relevant specifications of OSI layer 6;

— conformance test plan: details the objectives, resources, and processes to test communication

requirements of OSI layers 7, 6, and 5;

— lower OSI layer framework: covers all vehicle diagnostic protocol standards of OSI layers 4, 3, 2, and

1, which are relevant and referenced by the use case specific standard.
© ISO 2022 – All rights reserved
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ISO 20730-2:2022(E)
Figure 1 — ePTI document reference according to OSI model
© ISO 2022 – All rights reserved
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INTERNATIONAL STANDARD ISO 20730-2:2022(E)
Road vehicles — Vehicle interface for electronic Periodic
Technical Inspection (ePTI) —
Part 2:
Application and communication requirements
conformance test plan
1 Scope

This document specifies the conformance test plan for the communication requirements stated in

ISO 20730-1 of road vehicles' ePTI-relevant systems and associated measurement and control data as

specified in ISO 20730-3, which are subject to the usage of the electronic vehicle interface during the

periodic technical inspection (ePTI).

The conformance test plan specifies test requirements and expected response behaviour of the system

under test (SUT) to verify conformance of a vehicle with respect to ISO 20730-1 and ISO 20730-3

requirements.

This document provides technical information that test results are identical even on different test

systems, if the particular test suite and the test system are compliant to the content of this document.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 13400-2, Road vehicles — Diagnostic communication over Internet Protocol (DoIP) — Part 2: Transport

protocol and network layer services

ISO 14229-1:2020, Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer

ISO 14229-2, Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services

ISO 20730-1:2021, Road vehicles — Vehicle interface for electronic Periodic Technical Inspection (ePTI) —

Part 1: Application and communication requirements

ISO 20730-3:2021, Road vehicles — Vehicle interface for electronic Periodic Technical Inspection (ePTI) —

Part 3: Data definitions
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 13400-2, ISO 14229-1,

ISO 14229-2, ISO 20730-1, ISO 20730-3 and the following apply.

ISO and IEC maintain terminology databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
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ISO 20730-2:2022(E)
3.1
implementation under test

implementation of one or more OSI protocols in an adjacent user/provider relationship, being the part

of a real open system which is to be studied by testing
[SOURCE: ISO/IEC 9646-1:1994, 3.3.43]
3.2
operational

in respective diagnostic session, authenticated, authorized state, and pre-conditions to execute the

respective diagnostic service, DID(s), and RID(s)
3.3
REPEAT
pseudo code command for an iteration
3.4
REPEAT END
pseudo code command for ending an iteration
3.5
system under test
real open system in which the IUT resides
[SOURCE: ISO/IEC 9646-1:1994, 3.3.103]
4 Abbreviated terms
AL application layer
CAN controller area network
CTC conformance test case
CTG conformance test group
CTP conformance test plan
DID data identifier
DLC data link connector
DoCAN diagnostic communication over CAN
DoIP diagnostic communication over Internet Protocol
ECU electronic control unit
ICS implementation conformance statements
IOCT_DID input/output control data identifier
IUT implementation under test
LT lower tester
N_AI network address information
OSI open system interconnection
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ISO 20730-2:2022(E)
PCO point of control and observation
RID routine identifier
SA source address
SUT system under test
UT upper tester
5 Conventions
[3]

This document is based on OSI service conventions as specified in ISO/IEC 10731 and ISO 9646-1 for

conformance test system setup.
6 General test specification considerations
6.1 General

This document covers the conformance test cases (CTC) to verify the requirements specified in

ISO 20730-1 and ISO 20730-3.
6.2 Test conditions

The conformance tests shall be performed at a temperature in the range of -20 °C to +40 °C.

An initialisation of the IUT shall be performed before each CTC.
6.3 SUT (vehicle) requirements
The SUT shall be initialised in the CTC respectively.
6.4 Test system topology
[3]

The test system topology follows the ISO 9646-1 and consists of a test setup which consists of a

test system and a system under test (SUT) connected via the physical medium via LT communication

interface (LT-Iface-0) and the SUT communication interface (IUT-Iface-0). The test system implements

an UT and a LT. The UT uses the test control protocol (Figure 2, key 2) to control the LT. The LT supports

the functionality required to test the OSI layer (Figure 2, key 3) of the IUT. The test system uses SUT-

specific set-up parameters (Figure 2, key 1) for testing the communication with the SUT.

The control and measurement functionality is provided by direct logical access to the service interface

(dashed line) (Figure 2, key 3) and the associated parameters of the OSI layer. The UT application

instructs the inspector via the point of control and observation (PCO) (Figure 2, key 3) to perform

visual inspection and manual control in the SUT (Figure 2, key 4).

The test system uses SUT-specific set-up parameters (Figure 2, key 1), e.g. ISO 20730-1 protocol and

ISO 20730-3 data parameters, routine identifiers, and other vehicle manufacturer-specific parameters

for testing the communication with the IUT.
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ISO 20730-2:2022(E)
1 SUT-specific set-up parameters for the test system (SUT electronic data sheet)
2 test control protocol (interface between UT and LT)
3 points of control and observation (PCO) performed by test operator

4 UT human machine interface to provide control instructions and visual inspection feedback by test system

operator
5 data link connector (DLC) cable

6 IUT-Iface-0 physical interface represented by the vehicle's diagnostic link connector referenced in ISO 20730-1

7 LT-Iface-0 physical interface represented by the test system's diagnostic link connector

Figure 2 — Test system setup
6.5 Configuration of test system and SUT

The test system uses SUT-specific set-up parameters (Figure 2, key 1) to execute conformance test

cases.
The SUT-specific set-up parameters specify at least the following information:

— IUT (ePTI-relevant ECUs installed in the SUT) supported application layer protocol: ISO 20730-1;

— supported protocol(s):
— DoIP: ISO 13400-2, ISO 13400-3,
— DLC: ISO 13400-4,
— CAN: ISO 11898-1, ISO 11898-2,
— DoCAN: ISO 15765-2, ISO 15765-5,
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ISO 20730-2:2022(E)
— DLC: ISO 15031-3,
— DLC: ISO 19689, and
— DLC: SAE J1939-13 (Type 2).

— test system address (ePTI external test equipment) information as specified in ISO 20730-1;

— ePTI-relevant ECU(s) address information as specified in ISO 20730-1;
— application layer protocol timing information as specified in ISO 20730-1;
— data definitions as specified in ISO 20730-3.
6.6 CTC definition

Each CTC is defined in the structure as specified in Table 1. The "Step #" and "Expected response" is the

equivalent of an "ICS" (implementation conformance statement).
Table 1 — CTC definition example
Item Content
OSI#.Name [OSI layer #].CTC_[number_name]
EXAMPLE 8.CTC_1.1 APP - Test DoCAN protocol

Purpose This CTC verifies that, e.g. the IUT supports the DoCAN protocol on the diagnostic data link

connector.
Reference ISO 20730-1:2021, 14.1:

— REQ 8.1 APP – Setup vehicle's DoCAN data link framework – DoCAN diagnostic link

connector;
— REQ 8.2 APP – Setup vehicle's DoCAN data link framework –DoCAN connection on
diagnostic link connector;
— ...
ISO 20730-1:2021, 15.3.1:
— REQ 7.8 AL – Report ePTI-relevant system(s) – General requirement;
— ...
ISO 20730-3:2021, B.1, Table B.1:
— DID_SUPP_SYS (supported ePTI Systems);

NOTE This information is the symbolic name for that requirement which is used in ISO

20730-3. In some cases the references to requirements in ISO 20730-1 include text in

parenthesis.
— ... .
Prerequisite The SUT (vehicle)
shall:
— be in ignition RUN (position II);
— have all ePTI-relevant ECUs operational.
Setup The test system setup shall be in accordance with Figure 2.

The test system shall be parameterized in accordance with the SUT-specific set-up parame-

ters as specified in 8.2. The IUT shall be in DEFAULT_SESSION state. The UT shall initialize the

LT with the IUT-specific set-up parameters.

Step 1. The LT shall transmit a request message via the LT-Iface-0 to the IUT-Iface-0.

2. The LT shall report the received information from the IUT to the UT.
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ISO 20730-2:2022(E)
TTabablele 1 1 ((ccoonnttiinnueuedd))
Item Content

Iteration Definition of repetitions of test procedure steps. If no repetitions required state: "Not applica-

ble"
REPEAT step 1 to step 2, n times
...
REPEAT END
Expected After step 1 the IUT responds with the
response
— ...

Remark For example, if no remark "None" or if a remark is included start with "Observation of …."

IMPORTANT — All conformance test cases reference the requirements stated in
[3]

ISO 20730-1:2021, ISO 20730-3:2021, and ISO 9646-1:1994, 5.6, which states "To evaluate

the conformance of a particular system, it is necessary to have a statement of the capabilities

and options which have been implemented, for each specification which is supported, so that

the system can be tested for conformance test against relevant requirements, and against those

requirements only. Such a statement is called implementation conformance statements (ICS)."

7 Basic principles and conformance test groups
7.1 Basic principles

BP1: The CTCs specified in this document are independent of the technical classification specified in

each use case defined in ISO 20730-1.

BP2: The CTCs specified in this document only cover standardized diagnostic services specified in

ISO 20730-1 and data parameters specified in ISO 20730-3.

BP3: The CTC test sequence is given by the sequence of CTC_X.Y as specified in this document.

BP4: The conformance test plan (CTP) only specifies CTCs which provide a positive "expected response".

BP5: The LT performs IUT application layer to session layer testing, e.g. request/response message

behaviour. The LT does not interpret any data following the service identifier of the response message.

BP6: The UT performs IUT application data interpretation to be reported as CTC result(s).

7.2 Conformance test groups

Table 2 provides an overview of the main conformance test groups and associated conformance test

cases.
Table 2 — CTGs and associated CTCs
CTG_ CTG name CTC name

1 CTG_1 – Test data 8.CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s)

8.CTC_1.2 – Test DoIP protocol and supported ePTI-relevant system(s)
link discovery

2 CTG_2 – Test authentication 7.CTC_2.1 – Test ePTI external test equipment authentication

7.CTC_2.2 – Test ECU(s) authentication
3 CTG_3 – Test supported eP- 7.CTC_3.1 – Test supported ECU data identifier(s)
TI-relevant ECU DID(s), RID(s),
7.CTC_3.2 – Test supported ECU routine identifier(s)
and IOCT_DID(s)
7.CTC_3.3 – Test supported ECU input/output control identifier(s)
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ISO 20730-2:2022(E)
TTabablele 2 2 ((ccoonnttiinnueuedd))
CTG_ CTG name CTC name
4 CTG_4 – Test ePTI-relevant 7.CTC_4.1 – Test reported VIN from ECU
data
7.CTC_4.2 – Test reported vehicle odometer value
7.CTC_4.3 – Test reported vehicle's software number(s)
7.CTC_4.4 – Test reported information from system
7.CTC_4.5 – Test reported vehicle's ePTI system self-test completion and
system status
5 CTG_5 – Test ePTI-relevant 7.CTC_5.1 – Test ePTI-relevant routines
activation
7.CTC_5.2 – Test ePTI-relevant input/output controls
8 Conformance test plan
8.1 General

The application tests the vehicle's supported protocol(s) and data parameters according to ISO 20730-1

and ISO 20730-3.
8.2 Variables and arrays used in CTCs

Table 3 specifies the user defined configuration variables and arrays for UT and LT.

Table 3 — CTC user defined configuration variables and arrays for UT and LT
Variables, Arrays Description
PROT_TYPE This variable is set by the test system and associated to the protocol
supported by the SUT, e.g. DoCAN, DoIP.

PROT_BIT_RATE This variable is set by the test system and associated to the protocol bit

rate.
DEFAULT_SESSION Default session state of the ECU
EXT_DIAG_SESSION Extended diagnostic session state of the ECU

LIST_OF_SUPP_ECUs_SYSs[i] List of ECU address information and associated supported system(s)

as reported by the IUT: LIST_OF_SUPP_ECUs_SYSs[i] = {N_AI[SA], ePTI
system identifier(s)}

LIST_OF_SUPP_ECUs_DIDs[j] List of ECU address information and associated supported DID(s) as

reported by the IUT: LIST_OF_SUPP_ECUs_DIDs[j] = {N_AI[SA], DID(s)}

LIST_OF_SUPP_ECUs_RIDs[k] List of ECU address information and associated supported RID(s) as

reported by the IUT: LIST_OF_SUPP_ECUs_RIDs[k] = {N_AI[SA], RID(s)}

LIST_OF_SUPP_ECUs_IOCT_DIDs[l] List of ECU address information and associated supported IOCT_DID(s)

as reported by the IUT: LIST_OF_SUPP_ECUs_IOCT_DIDs[l] = {N_AI[SA],
IOCT_DID(s)}
8.3 CTG_1 – Test data link discovery
8.3.1 CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s)

Table 4 specifies the CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s).

Table 4 — CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s)
Item Content
OSI#.Name 8.CTC_1.1 – Test DoCAN protocol and supported ePTI-relevant system(s)
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ISO 20730-2:2022(E)
TTabablele 4 4 ((ccoonnttiinnueuedd))
Item Content

Purpose This CTC verifies that the IUT supports the DoCAN protocol and reports the supported eP-

TI-relevant systems via the diagnostic data link connector.
Reference ISO 20730-1:2021, 14.1:

— REQ 8.1 APP – Setup vehicle's DoCAN data link framework – DoCAN diagnostic link

connector;
— REQ 8.2 APP – Setup vehicle's DoCAN data link framework – DoCAN connection on
diagnostic link connector;

— REQ 8.3 APP – Setup vehicle's DoCAN data link framework – DoCAN configuration of 29-

bit CANID protocol (see ISO 20730-1:2021, Table 21);
— REQ 8.4 APP – Setup vehicle's DoCAN data link framework – DoCAN 29-bit CANID
maximum number of ECUs;
— REQ 8.5 APP – Setup vehicle's DoCAN data link framework – DoCAN normal fixed
addressing format;

— REQ 8.6 APP – Setup vehicle's DoCAN data link framework – DoCAN functional addressing;

— REQ 8.8 APP - Setup vehicle's DoCAN data link framework – Size of A_PDU in the request

message;

— REQ 8.9 APP – Setup vehicle's DoCAN data link framework – DoCAN application message

timing definition in defaultSession;
— REQ 8.17 APP – Choice of DoCAN and DoIP data link in the vehicle.
ISO 20730-1:2021, 15.3.1:
— REQ 7.8 AL – Report ePTI-relevant system(s) – General requirement;

— REQ 7.9 AL – Report ePTI-relevant system(s) – Request and response message processing;

— REQ 7.10 AL – Report ePTI-relevant system(s) – MsgParam – DID_SUPP_SYS (supported

ePTI Systems);
— REQ 7.11 AL – Report ePTI-relevant system(s) – PosRspMsgParam – dataRecord;
— REQ 7.12 AL – Report ePTI-relevant system(s) – PosRspMsgParam – ePTI system
identifier.
ISO 20730-3:2021, Table A.1:
— ePTI-relevant system identifiers.
ISO 20730-3:2021, B.1, REQ 7.1, Table B.1:
— DID_SUPP_SYS (supported ePTI Systems).
Prerequisite The SUT (vehicle)
shall:
— be in ignition RUN (position II);
— have all ePTI-relevant ECUs operational.
Setup The test system setup shall be in accordance with Figure 2.
The UT shall initialize the LT with the IUT-specific set-up parameters.
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ISO 20730-2:2022(E)
TTabablele 4 4 ((ccoonnttiinnueuedd))
Item Content

Step 1. The UT shall command to the LT to set up the data link discovery for the DoCAN protocol.

2. The LT shall transmit a ReadDataByIdentifier request message to the IUT as specified in

ISO 20730-1:2021, REQ 7.9, Table 24 and ISO 20730-3:2021, B.1, Table B.1 (DID set to DID_

SUPP_SYS).
3. The LT shall receive at least one or multiple ReadDataByIdentifier r
...

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