ISO 20730-3:2021

INTERNATIONAL ISO
STANDARD 20730-3
First edition
2021-10
Road vehicles — Vehicle interface
for electronic Periodic Technical
Inspection (ePTI) —
Part 3:
Data definitions
Véhicules routiers — Interface de véhicule pour le contrôle technique
périodique électronique (ePTI) —
Partie 3: Définition des données
Reference number
© ISO 2021
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Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
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 . 2
5 Informative guidance for considering ePTI relevance . 2
6 ePTI-relevant system list, DIDs and RIDs . 3
Annex A (normative) ePTI-relevant system list . 4
Annex B (normative) DID definitions.9
Annex C (normative) Routine definitions . .36
Annex D (normative) Templates for proposed identifiers and names .42
Bibliography .43
iii
Foreword
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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
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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.
iv
Introduction
Roadworthiness testing is a part of a wider regime designed to ensure that 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 authorization 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 this document, summarizes 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
[1] [3]
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 use cases und requirements of subject matter of OSI layer 7;
— presentation layer framework: covers all data relevant specifications of OSI layer 6;
— conformance test plan: covers the conformance test plan requirements of the use cases and
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.
v
Figure 1 — ePTI document reference according to OSI model
vi
INTERNATIONAL STANDARD ISO 20730-3:2021(E)
Road vehicles — Vehicle interface for electronic Periodic
Technical Inspection (ePTI) —
Part 3:
Data definitions
1 Scope
This document specifies ePTI-relevant system identifiers, data identifiers, routine identifiers, input/
output control identifiers, data types, CompuMethods (computations), and units.
This document describes ePTI systems' data definitions and associated technical requirements.
The technical requirements of data definitions of emissions-related systems are specified in other
[4] [5]
standards, e.g. the ISO 15031 series , the ISO 27145 series , and SAE J1979DA.
The ePTI system list defined in this document summarizes ePTI-relevant systems and specifies a
defined name (system), a unique identifier (ePTI system identifier) and a description for each ePTI-
relevant system.
This document does not specify any type of test method or pass/fail criteria of the ePTI-relevant system
during a PTI.
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 3779, Road vehicles — Vehicle identification number (VIN) — Content and structure
ISO 14229-1, Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer
ISO 20730-1, Road vehicles — Vehicle interface for electronic Periodic Technical Inspection (ePTI) — Part 1:
Application and communication requirements
SAE J1979DA, Digital Annex of E/E Diagnostic Test Modes
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14229-1, ISO 20730-1 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/o bp
— IEC Electropedia: available at https:// www.e lectropedia. org/
3.1
error
indicates an erroneous status
3.2
currently not available
information cannot be reported at time of request
3.3
not installed
information cannot be reported because the source is physically not available
4 Symbols and abbreviated terms
4.1 Symbols
--- empty table cell or feature undefined
4.2 Abbreviated terms
Cvt convention
DID data identifier
IOID input output identifier
IOCT input output control
LSB least significant byte
M mandatory
MI malfunction indicator
MSB most significant byte
O optional
RCTP routineControlType
RCOR routineControlOptionRecord
RID routine identifier
SPN suspect parameter number
TP tyre pressure
U user optional
5 Informative guidance for considering ePTI relevance
ePTI-relevant systems are all vehicle systems and components, that when not operating to their design
criteria, affect the safety of the vehicle. These are vehicle systems that perform at least one of the
following functions:
a) deceleration of the vehicle;
b) longitudinal, lateral and yaw stabilization of vehicle movements;
c) hold the vehicle stationary;
d) change of angle >3° on any steered wheel, while vehicle speed is ≥15 km/h;
e) adjustment of the intensity and/or direction of the road illumination;
f) change of the signal image of the vehicle lighting devices, while vehicle speed is ≥15 km/h;
g) protecting the survival space of road users;
h) adjustment of the behaviour of the suspension and shock absorbers;
i) monitoring and control of tyre air pressure;
j) adjustment of the aerodynamic devices;
k) high voltage electrical propulsion ≥60 V;
l) changes in visibility;
m) hazard warning and emergency related communication;
n) generation of external warning for, e.g. pedestrian attention in regard to electric vehicle;
o) adjustment of the vehicle height or tilt;
p) automatically controlled acceleration.
The criteria and definition should be updated as technology progresses.
EXAMPLE The “automatic emergency brake” vehicle system can perform the “deceleration” function and is
therefore an ePTI-relevant vehicle system.
6 ePTI-relevant system list, DIDs and RIDs
The ePTI-relevant system list shall be in accordance with Annex A. The status of Annex A is normative.
The DID definitions shall be in accordance with Annex B. The status of Annex B is normative.
The RID definitions shall be in accordance with Annex C. The status of Annex C is normative.
The templates for identifier definitions shall be in accordance with Annex D. The status of Annex D is
normative.
Annex A
(normative)
ePTI-relevant system list
The ePTI-relevant systems are identified based on the functional criteria in Clause 5. Table A.1
specifies ePTI-relevantSystemIdentifier, ePTI-relevant system name, symbolic name and ePTI system
description. The symbolic names provide the possibility , for example, to make a unique reference to
diagnostic description information in case a diagnostic service is not yet implemented using the ePTI-
relevantSystemIdentifier as specified in this document. Symbolic names use the character set ISO 8859-
[2]
1 in the range of 30 to 39 (0, 1, … 9), 41 to 5A (A, B, … Z), and 5F (_).
16 16 16 16 16
Table A.1 — Definition of ePTI-relevant system identifiers and names
ePTISys- ePTI-relevant Symbolic name ePTI system description
tem-Identi- system name
fier
0000 Reserved RESRVD Reserved by this document for future standardi-
zation.
0001 Generic ePTI SYS_GENERIC_INFO This “virtual” (non-safety) system can be used
information to report standardized information as specified
in this document, e.g. VIN or the mileage of the
vehicle, which may not be supported by any of the
other systems in this system list.
This system is conditional. It is mandatory if
standardized information, as specified in this doc-
ument, is not provided by any of the other systems
in this system list.
0002 Cornering light SYS_CORN_LI During cornering, an extra headlamp is activated.
Operates up to 40 km/h, e.g. in accordance with
[21] [31]
ECE-R 48 ; ECE-R 119 .
0003 Adaptive cruise SYS_ADP_CRUISE_CTRL The system maintains the vehicle's speed, depend-
control ing on the preferred speed and distance to the
vehicle in front.
0004 Adaptive deflec- SYS_ADP_DEFLECTOR Depending on the vehicle's speed, the air deflec-
tors tors are adjusted in order to improve driving
stability.
0005 Airbag SYS_AIRBAG In case of an accident, inflatable airbags reduce
the risk of injury by their absorbing effect, e.g.
[13] [15]
in accordance with ECE-R 12 ; ECE-R 14 ;
[16]
ECE-R 16 .
0006 Active headrest SYS_ACT_HEADREST The system reduces the danger of a whiplash inju-
ry in the event of a rear end collision by changing
the position of the headrest towards the head.
0007 Active hood SYS_ACT_HOOD By automatically lifting the bonnet, the system
ensures a larger collapsible zone in the event of an
accident involving a pedestrian.
0008 Automatic hold SYS_AUTO_HOLD_FCT The system independently holds the vehicle after
function stopping using the service brake and/or park-
ing brake and automatically releases them when
starting.
NOTE The mentioned UN/ECE regulations are solely stated to clarify and/or help to understand each ePTI-relevant
system.
Table A.1 (continued)
ePTISys- ePTI-relevant Symbolic name ePTI system description
tem-Identi- system name
fier
0009 Automatic head- SYS_AUTO_HL_LEVEL Depending on the load and (optional) pitch angle,
lamp levelling the system regulates the headlamp’s vertical aim,
[32]
e.g. in accordance with ECE-R 121 .
000A Automatic emer- SYS_AUTO_EM_BRAKE The system independently starts braking in order
gency brake to avoid a collision with an obstacle or to reduce
the consequences of an inevitable impact.
000B Anti-lock brake SYS_ANTI_L_BRAKE The system automatically prevents wheel-locking
during braking by selective reduction of the wheel
[14]
brake force, e.g. in accordance with ECE-R 13 ;
71/320/EEC.
000C Automatic light SYS_AUTO_LI Depending on the ambient brightness, the system
automatically switches on and off the driving light.
000D Electric drive SYS_ELEC_DRIVE Includes all propulsion systems which can propel
the vehicle using electrical power, e.g. in accord-
[29]
ance with ECE-R 100 .
000E Electro mechan- SYS_ELEC_MECH_PWR_ The supporting power for steering is generated by
ic STER an electric motor.
power steering
000F Electronic four- SYS_ELEC_4_W_STER Two axles are steered, with a steering angle great-
wheel steering er than 3° on all steered wheels, e.g. in accordance
[22] [23] [35]
with ECE-R 79 ; ECE-R 83 ; 70/311/EEC .
0010 Electronic SYS_ELEC_DAMP Depending on the driving situation, the rebound
damping and compression stage of the shock absorbers is
adjusted by the system.
0011 Electronic brake SYS_ELEC_BRAKE A brake pedal sensor and/or pressure sensor
system records the braking request and calculates the
optimal brake force for each wheel, so that there is
optimal activation of all wheel brakes.
0012 Electronic sta- SYS_ ELEC_STAB_PRG The system stabilizes the vehicle or the complete
bility program vehicle train in critical, dynamic driving situa-
tions, e.g. in accordance with Regulation (EC) No.
[9]
661/2009 .
0013 High beam assist SYS_HIGH_BEAM_AST The system automatically activates and deac-
tivates the high beam according to the driving
situation and lighting conditions.
0014 Speed limiter SYS_SPEED_LIM While driving, the system prevents exceeding a
defined maximum speed. Relevant, if mandatory,
[25]
e.g. in accordance with ECE-R 89 ; §57c German
[39] [38]
Road Traffic Act ; 92/24/EEC .
0015 Belt tensioner SYS_TENS_BELT_LIM In the event of an accident, the seat belt is
and belt force tensioned to place the passengers in a setpoint
limiter position and/or limits the belt force, electrically
controlled and, thus, limits the forces acting on
[16]
the persons e.g. in accordance with ECE-R 16 ;
[27]
ECE-R 94 .
0016 Tail light switch- SYS_TAIL_LI Depending on operating status and/or failure of
ing the illuminants, lighting functions are taken over
by other luminaires.
0017 Reserved RESRVD Reserved by this document for future standardi-
zation.
NOTE The mentioned UN/ECE regulations are solely stated to clarify and/or help to understand each ePTI-relevant
system.
Table A.1 (continued)
ePTISys- ePTI-relevant Symbolic name ePTI system description
tem-Identi- system name
fier
0018 Bending light SYS_BEND_LI During cornering and depending on the steer-
ing angle and speed, the light beam is swivelled
and/or an additional headlight is activated, e.g.
[21] [28]
in accordance with ECE-R 48 ; ECE-R 98 ;
[30] [33]
ECE-R 112 ; ECE-R 123 .
0019 Steering assist SYS_STER_AST Depending on the driving situation, the steering
angle is automatically changed, without interven-
tion by the driver. Relevant if the steering inter-
vention occurs at a speed of more than 15 km/h,
[22]
e.g. in accordance with ECE-R 79 .
001A Height levelling SYS_HEIGHT_LEVEL The system changes the clearance between vehicle
chassis and the road.
001B Emergency SYS_EM_BRAKE_SIG During strong deceleration, hazard warning lights
braking signal and/or additional luminous surfaces are activated
and/or the following traffic is warned by flashing
[21]
brake lights, e.g. in accordance with ECE-R 48 ;
[14]
ECE-R 13 .
001C Pre-crash sys- SYS_PRE_CRASH In a critical driving situation, the vehicle is pre-
tem pared for the crash so that the risk of injury to the
passengers and/or other road users is reduced.
001D Tyre pressure SYS_TYRE_PRES_WAR The system detects loss of tyre pressure through
warning integrated sensors and/or by implausible values
for wheel speed, e.g. in accordance with Regulation
[9]
(EC) No. 661/2009 .
001E Traction control SYS_TRACT_CTRL The system prevents the drive wheels spinning
during acceleration by applying brake force.
001F Superimposed SYS_SU_IMP_STER Depending on the driving situation, the system
steering varies the transmission ratio of the steering.
0020 Roll over protec- SYS_ACT_R_O_PROTECT In the event of an imminent rollover, support ele-
tion (active) ments are extended to secure the survival space,
[37]
e.g. in accordance with 74/60/EEC .
0021 Hydrogen instal- SYS_HYD_INST The hydrogen is stored in the vehicle and is used
lation to propel the vehicle, either by combustion in an
internal combustion engine or by conversion in a
fuel cell with an additional electric engine.
0022 Start-up aid SYS_START_UP_AID Aids start-up, e.g. by raising the lift axle or by mo-
mentarily applying brake pressure or by automatic
release of the parking brake.
0023 Trailer stabili- SYS_TRAILER_STAB Through selective braking of the trailer by the
zation service brakes, the complete vehicle train is stabi-
lized.
0024 Endurance SYS_END_BRAKE Is an additional braking system that can maintain
brake braking over a period of time without a significant
reduction in performance, e.g. in accordance with
[14] [36] [38]
ECE-R 13 ; 71/320/EEC ; 92/24/EEC .
0025 Differential lock SYS_DIF_LOCK_DACT If this system is activated, the differential locks are
deactivation unlocked depending on parameters (e.g. wheel slip,
steering angle, speed).
NOTE The mentioned UN/ECE regulations are solely stated to clarify and/or help to understand each ePTI-relevant
system.
Table A.1 (continued)
ePTISys- ePTI-relevant Symbolic name ePTI system description
tem-Identi- system name
fier
0026 Electronically SYS_ELEC_CTRL_LT_AX The steered axles are additional axles with elec-
controlled lead- tronically controlled steering. The steering force
ing and trailing is generated by a hydraulic pump or by the lateral
axle force on the wheels.
0027 Electronic steer- SYS_ELEC_STER_DAMP Steering damping is controlled electronically.
ing damper
0028 Bus stop brake SYS_BUS_STOP_BRAKE The system ensures the application of brake pres-
sure when stationary, independent of the brake
pedal activation. Buses can only start moving
when the doors are closed.
0029 Kneeling SYS_KNEELING The system allows a road vehicle to be lowered to
make it easier for passengers to board and disem-
bark.
002A Steering brake SYS_STER_BRAKE During cornering, dosed braking is applied to one
or more wheels.
002B Tyre pressure SYS_TYRE_PRE_CTRL According to the requirement of the driver, the
control system regulates the tyre pressure.
002C Sliding joint SYS_SLID_J_STAB The articulated joint is stabilized by damping,
stabilization dependent on vehicle speed, cylinder pressure of
the articulated dampers, steering and articula-
tion-angle.
002D Reserved RESRVD Reserved by this document for future standardi-
zation.
002E Four-wheel SYS_4_W_PARK_BRAKE The system applies the maximum brake pressure
parking brake in the wheel cylinders at all four wheels.
002F Front-wheel SYS_FRONT_W_LOCK Front wheel suspension, which permits lateral
locking device inclination of the motorbike, can be locked and
unlocked by an electric actuator. Above a certain
speed, it is automatically unlocked.
0030 Adaptive head- SYS_ADAP_HEAD_LI The illumination of the surrounding road area
lights and/or the direct illumination of road users in the
danger area in front of the vehicle is optimized by
dynamic adaption of the light beams.
0031 Electrically-ac- SYS_ELEC_PARK_ The parking brake function is triggered or trans-
tuated parking BRAKE mitted electronically or electromechanically.
brake
0032 Lane change SYS_LANE_CH_AST At a lane change, the system warns the driver
assist about vehicles in the next lane and steers the vehi-
cle back.
0033 Lane keep assist SYS_LANE_KEEP_AST The system warns the driver when the vehicle
is unintentionally leaving its lane and steers the
vehicle back.
0034 Automatic eCall SYS_AUTO_ECALL The system is triggered automatically by in-vehicle
sensors or manually, it transmits a minimum set
of data (EN 15722) via mobile communication net-
work and establishes an audio connection based
on the (emergency) number between the vehicle
passengers and the public safety answering point,
[10]
see Regulation (EU) 2015/758 .
NOTE The mentioned UN/ECE regulations are solely stated to clarify and/or help to understand each ePTI-relevant
system.
Table A.1 (continued)
ePTISys- ePTI-relevant Symbolic name ePTI system description
tem-Identi- system name
fier
0035 Active roll stabi- SYS_ACT_ROLL_STAB Via appropriate actuators the system produces
lization a roll moment which encounters the vehicle roll
movement depending on the current driving situ-
ation.
0036 Camera monitor SYS_CAM_MONITOR The system which generates at least a part of the
indirect field of vision by a camera monitor combi-
[20]
nation (e.g. in accordance with ECE-R 46 ).
0037 Acoustic vehicle SYS_ACO_VE_ALERTING At low speed, the system generates an external,
alerting specific sound in order to warn, e.g. pedestrians.
0038 Basic exterior SYS_ EXTER_LI The system switches on/switches off the basic
lights lighting devices (e.g. indicators).
0039 Automated lane SYS_AUTO_LANE_KEEP A system which is activated by the driver and
keeping system which keeps the vehicle within its lane by con-
(ALKS) trolling the lateral and longitudinal movements of
the vehicle for extended periods without the need
for further driver input.
003A Turning assis- SYS_TURN_ASSIST A system to inform the driver of a possible colli-
tant sion with a traffic participant (e.g. bicycle) near
[34]
side (e.g. in accordance with ECE-R 151 ).
003B Tachograph SYS_TACHOGRAPH A system to record the driving time, breaks, rest
periods as well as periods of other work undertak-
en by a driver, for example, required by Regulation
[8]
(EU) No 165/2014 .
003C Reserved RESRVD Reserved by this document for future standardi-
to zation.
EFFF
F000 Reserved for RESRVD_VM Reserved for vehicle manufacturer use.
to vehicle manufac-
FFFE turer use
FFFF Reserved RESRVD Reserved by this document, not available for ePTI
system identifier assignment.
NOTE The mentioned UN/ECE regulations are solely stated to clarify and/or help to understand each ePTI-relevant
system.
Annex B
(normative)
DID definitions
B.1 Definition of DIDs and names
Table B.1 specifies the DID #, DID name, symbolic name, and definition. The symbolic names provide the
possibility, e.g. to make a unique reference to diagnostic description information in case a diagnostic
service is not yet implemented using the DIDs and computation methods specified in this document.
[2]
Symbolic names use the character set ISO 8859-1 in the range of 30 to 39 (0, 1, … 9), 41 to 5A
16 16 16 16
(A, B, … Z), and 5F (_).
REQ 7.1 Definition of DIDs and names
DID implementation in ePTI-relevant ECU(s) shall be in accordance with Table B.1.
The accuracy of the sensor values identified by the DID might have a different resolution as specified in
this document.
Table B.1 — Definition of DIDs and names
a
DID # DID name Symbolic name Definition Cvt
FA19 ISO edition number DID_ISO_ED_NUM Description, definition and requirements M
are specified in B.3.
FA20 Supported ePTI data DID_SUPP_DID DIDs are specified in this table. M
identifiers
FA21 Supported ePTI systems DID_SUPP_SYS Description, definition and requirements M
for the ePTISystem identifiers are speci-
fied in B.4 and Annex A.
FA22 Supported ePTI routine DID_SUPP_RID Routine identifiers are specified in M
identifiers Annex C.
FA23 Supported ePTI input/ DID_SUPP_IOCT_DID Input/output identifiers are specified in M
output control identifi- Annex D.
ers
FA24 ePTI system status DID_SYS_STATUS Description, definition and requirements M
are specified in B.10.
FA25 Seat belt buckle DID_SEAT_BELT_BUC Description, definition and requirements O
are specified in B.11.
FA26 Hydraulic brake pres- DID_HYD_BRK Description, definition and requirements O
sure are specified in B.12.
FA27 Air brake pressure DID_AIR_BRK Description, definition and requirements O
are specified in B.13.
FA28 Tyre pressure DID_TYRE_PRESS Description, definition and requirements O
are specified in B.14.
FA29 Wheel speed DID_WHEEL_SPD Description, definition and requirements O
are specified in B.15.
FA2A Dynamic driving values DID_DYN_DRIVING Description, definition and requirements O
of are specified in B.16.
a
See ISO 20730-1, BP7 for the condition of implementation.
Table B.1 (continued)
a
DID # DID name Symbolic name Definition Cvt
FA2B Steering wheel angle DID_STEER_WHEEL_ Description, definition and requirements O
ANGLE are specified in B.17.
FA2C Reserved RESRVD Reserved by this document. M
to
FACF
a
See ISO 20730-1, BP7 for the condition of implementation.
B.2 DIDs defined in other standards
Table B.2 defines DIDs and names, which are specified in other standards.
REQ 7.2 DIDs defined in other standards
Table B.2 specifies DIDs defined in other standards for ePTI-relevant systems, which shall be support-
ed if implemented.
Table B.2 — DIDs defined in other standards
a
DID # DID name Symbolic name Definition Cvt
F18F Regulation 'X' software DID_RxSWIN Description, definition and requirements O
identification number are specified in B.9.
F190 Vehicle identification DID_VIN Description, definition and requirements M
number are specified in B.5.
F4A6 Vehicle odometer DID_ODO Description, definition and requirements M
are specified in B.6.
F40D Vehicle speed sensor DID_VSS Description, definition and requirements O
are specified in B.7.
F442 Control module voltage DID_CMV Description, definition and requirements O
are specified in B.8.
a
See ISO 20730-1, BP7 for the condition of implementation.
B.3 ISO edition number
B.3.1 Description
This parameter provides the vehicle's supported version number of ISO 20730-1 and this document
(ISO 20730-3).
B.3.2 ISO edition number attributes
REQ 7.3 ISO edition number – Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.3.
Table B.3 — ISO edition number attributes
Attribute Value
Byte position 4: ISO edition number of ISO 20730-1
5: ISO edition number of ISO 20730-3
Data length 8 bit
Data type unsigned numeric
Table B.3 (continued)
Attribute Value
Data range 00 : reserved
01 to FA : valid range of ISO edition number
16 16
FB : reserved
FC : error or currently not available
FD : not installed
FE to FF : reserved
16 16
Type stored value
B.3.3 ISO edition number example
Table B.4 specifies the ISO edition number example.
Table B.4 — ISO edition number example
Data A_PDU definition
22 ReadDataByIdentifier request message SID
FA19 DID = ISO edition number
62 ReadDataByIdentifier positive response message SID
FA19 DID = ISO edition number
dataRecord = [
01 ISO edition number of ISO 20730-1: 1
02 ISO edition number of ISO 20730-3: 2
B.4 ePTI system identifier
B.4.1 Description
This parameter provides a unique identifier for an ePTI-relevant system. The ePTI system identifier
values are standardized by this document.
B.4.2 ePTI system identifier attributes
REQ 7.4 ePTI system identifier - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.5.
Table B.5 — ePTI system identifier attributes
Attribute Value
Byte position 4 (MSB of first ePTI system identifier)
Data length 16 bit per system
Data type enumeration
Data range 0000 to FFFF , see Annex A
16 16
Type predefined values
B.5 Vehicle identification number
B.5.1 Description
This parameter provides the vehicle identification number.
B.5.2 Vehicle identification number attributes
REQ 7.5 Vehicle identification number - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with ISO 14229-1
and ISO 3779.
B.6 Vehicle odometer
B.6.1 Description
This parameter provides the odometer reading of a vehicle.
B.6.2 Vehicle odometer attributes
REQ 7.6 Vehicle odometer - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with SAE J1979DA.
B.7 Vehicle speed sensor
B.7.1 Description
This parameter provides the vehicle speed.
B.7.2 Vehicle speed sensor attributes
REQ 7.7 Vehicle speed sensor - Parameter attributes
If the ePTI-relevant ECU supports this DID the implementation shall be in accordance with SAE J1979DA.
B.8 Control module voltage
B.8.1 Description
This parameter provides the control module voltage.
B.8.2 Control Module Voltage attributes
REQ 7.8 Control module voltage - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with SAE J1979DA.
B.9 Regulation 'X' software identification number
B.9.1 Description
This parameter provides the regulation 'X' software identification number(s) (RxSWIN).
B.9.2 RxSWIN attributes
REQ 7.9 Regulation 'X' software identification number - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with ISO 14229-1.
B.10 ePTI system status
B.10.1 Description
This parameter provides the status of an ePTI-relevant system.
B.10.2 ePTI system status attributes
REQ 7.10 ePTI system status - Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.6.
Table B.6 — ePTI system status attributes
Attribute Value
Byte position 6 (ePTI system status of first system)
Data length 8 bit per system
Data type enumeration
Data range 00 to 01 : valid range of ePTI system status
16 16
00 : no system error detected, system self-test completed
01 : system error detected, system self-test completed
02 to FB : reserved
16 16
a
FC : error or currently not available
b
FD : not installed
FE to FF : reserved
16 16
Type measured value
a
This status is also reported when the system self-test is not completed.
b
This status is defined for consistency purposes only with all other status definitions in this document.
B.11 Seat belt buckle
B.11.1 Description
This parameter provides the status of each seat belt buckle.
B.11.2 Seat positions and configurations
Figure B.1 shows the supported seat configurations (top view) and the respective seat positions. Each
physical seat position and configuration is mapped to a logical seat position and configuration which
is reported by the seat belt buckle positive response message parameters. Each logical seat position is
specified by a coordinate system with row index and column index. Position “11” is the left seat in the
first row to driving direction, also if a single seat is in the first row regardless of the seat position and
steering wheel position. The column index of the seat belt buckle continuously increases for the next
fitted seat. The row index of the seat belt buckle equals the seat row. For a double decker bus the seats
of the 2nd level continue from the last row index of lower level.
Figure B.1 — Seat positions and configurations
B.11.3 Seat belt buckle attributes
REQ 7.11 Seats per row – Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.7.
Table B.7 — Seats per row attributes
Attribute Value
Byte position 4
Data length 8 bit
Data type unsigned numeric
Data range 00 = reserved
01 to FA = valid range of maximum number of seats per row
16 16
FB : reserved
FC : error or currently not available
FD : not installed
FE to FF : reserved
16 16
Table B.7 (continued)
Attribute Value
Data conversion see Formula (B.1)
Type stored value
NS= (B.1)
SeatsPerRowRow_Raw
where
S is the raw value of seats per row;
Row_Raw
N is the number of seats per row.
SeatsPerRow
REQ 7.12 Seat belt buckle – Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.8.
If a seat is not assembled in the vehicle, the parameter value for seat belt buckle of this seat position
may be set to FD (not installed).
Table B.8 — Seat belt buckle attributes
Attribute Value
Byte position 5 (value of the most left seat belt buckle in first row)
Data length 8 bit per seat
Data type enumeration
Data range 00 to 01 : valid range of seat belt buckle
16 16
00 = not buckled
01 = buckled
02 to FB : reserved
16 16
FC : error or currently not available
FD : not installed
FE to FF : reserved
16 16
Type measured value
REQ 7.13 Seat belt buckle – Total length of data record
The total length of the data record in the positive response message shall not exceed 100 data bytes.
B.11.4 Seat belt buckle – 5-seater single ECU example
Figure B.2 shows an example of the seat belt buckle from a 5-seater single ECU.
Key
buckled
not buckled
not installed
Figure B.2 — Seat belt buckle – 5-seater single ECU example
Table B.9 specifies the seat belt buckle from an example of a 5-seater single ECU, based on Figure B.2.
Table B.9 — Seat belt buckle – 5-seater single ECU example
Data A_PDU definition
22 ReadDataByIdentifier request message SID
FA25 DID = Seat belt buckle
62 ReadDataByIdentifier positive response message SID
FA25 DID = Seat belt buckle
03 Seats per row: 3
dataRecord = [
01 Seat belt buckle position 11 = buckled
00 Seat belt buckle position 12 = not buckled
FD Seat belt buckle position 13 = not installed
01 Seat belt buckle position 21 = buckled
00 Seat belt buckle position 22 = not buckled
00 Seat belt buckle position 23 = not buckled ]
B.11.5 Seat belt buckle – 5-seater dual ECU example
Figure B.3 shows an example of the seat belt buckle from a 5-seater dual ECU.
Key
a
Primary row index 1 and 2 and column index 1, 2, and 3 are covered by ECU #1.
b
Secondary row index 1 and 2 and column index 1, 2, and 3 are covered by ECU #2.
buckled
not buckled
not installed
Figure B.3 — Seat belt buckle – 5-seater dual ECU example
Table B.10 specifies the seat belt buckle from an example of a 5-seater response from ECU 1, based on
Figure B.3.
Table B.10 — Seat belt buckle – 5-seater response from ECU 1 example
Data A_PDU definition
22 ReadDataByIdentifier request message SID
FA25 DID = Seat belt buckle
62 ReadDataByIdentifier positive response message SID
FA25 DID = Seat belt buckle
03 Seats per row: 3
dataRecord = [
01 Seat belt buckle position 11 = buckled
00 Seat belt buckle position 12 = not buckled
FD Seat belt buckle position 13 = not installed
00 Seat belt buckle position 21 = not buckled
00 Seat belt buckle position 22 = not buckled
00 Seat belt buckle position 23 = not buckled ]
Table B.11 specifies the seat belt buckle from an example of a 5-seater response from ECU 2, based on
Figure B.3.
Table B.11 — Seat belt buckle – 5-seater response from ECU 2 example
Data A_PDU definition
22 ReadDataByIdentifier request message SID
FA25 DID = Seat belt buckle
62 ReadDataByIdentifier positive response message SID
FA25 DID = Seat belt buckle
03 Seats per row: 3
dataRecord = [
00 Seat belt buckle position 11 = not buckled
00 Seat belt buckle position 12 = not buckled
FD Seat belt buckle position 13 = not installed
01 Seat belt buckle position 21 = buckled
00 Seat belt buckle position 22 = not buckled
00 Seat belt buckle position 23 = not buckled ]
B.11.6 Seat belt buckle – 7-seater single ECU example
Figure B.4 shows an example of the seat belt buckle from a 7-seater single ECU.
Key
buckled
not buckled
not installed
Figure B.4 — Seat belt buckle – 7-seater single ECU example
Table B.12 specifies the seat belt buckle from an example of a 7-seater single ECU, based on Figure B.4.
Table B.12 — Seat belt buckle – 7-seater single ECU example
Data A_PDU definition
22 ReadDataByIdentifier request message SID
FA25 DID = Seat belt buckle
62 ReadDataByIdentifier positive response message SID
FA25 DID = Seat belt buckle
03 Seats per row: 3
dataRecord = [
01 Seat belt buckle position 11 = buckled
00 Seat belt buckle position 12 = not buckled
FD Seat belt buckle position 13 = not installed
01 Seat belt buckle position 21 = buckled
00 Seat belt buckle position 22 = not buckled
00 Seat belt buckle position 23 = not buckled
01 Seat belt buckle position 31 = buckled
00 Seat belt buckle position 32 = not buckled
FD Seat belt buckle position 33 = not installed ]
B.12 Hydraulic brake pressure
B.12.1 Description
This parameter provides the gage pressure in circuit 1 and circuit 2 (if implemented) of the hydraulic
brake pressure system.
B.12.2 Hydraulic brake pressure – Parameter attributes
REQ 7.14 Hydraulic brake pressure- Parameter attributes
If the ePTI-relevant ECU supports this DID, the implementation shall be in accordance with Table B.13.
If a hydraulic brake pressure circuit is absent, the relevant byte position shall be set to FD : not installed.
A vehicle with SAE J1939 network implements SAE J1939DA -SPN 2580 for the hydraulic brake pressure
circuit 1 and SAE J1939DA -SPN 2581 for the hydraulic brake pressure circuit 2 and converts the
parameter values according to Table B.13 requirements.
Table B.13 — Hydraulic brake pressure attributes
Attribute Value
Byte position 4: actual hydraulic brake pressure of circuit 1
5: actual hydraulic brake pressure of circuit 2
Data length 8 bit
Data type unsigned numeric
Data range 00 to FA : valid range of actual hydraulic brake pressure of circuit 1 and/or circuit 2
16 16
(kPa, without decimals)
FB : reserved
FC : error or currently not available
FD : not installed
FE to FF : reserved
16 16
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