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GB 17691-2018: Limits and measurement methods for emissions from diesel fueled heavy-duty vehicles (CHINA VI)
GB 17691-2018
NATIONAL STANDARD OF THE
PEOPLE?€?S REPUBLIC OF CHINA
Replacing GB 17691-2005
Limits and measurement methods for emissions from
diesel fueled heavy-duty vehicles (CHINA VI)
ISSUED ON: JUNE 22, 2018
IMPLEMENTED ON: JULY 01, 2019
Issued by: Ministry of Ecology and Environment;
State Market Regulatory Administration.
Table of Contents
State Market Regulatory Administration... 1
Foreword ... 4
1 Scope ... 7
2 Normative references ... 7
3 Terms and definitions ... 9
4 Pollution control requirements ... 20
5 Signage of engine (vehicle) ... 23
6 Technical requirements and tests ... 24
7 Installation on vehicles ... 31
8 Family and parent engine ... 32
9 Up-to-standard requirements and inspection of new produced vehicles ... 34
10 Requirements and inspection of in-use compliance ... 36
11 Implementation of standard ... 38
Appendix A (Normative) Materials for type test ... 40
Appendix B (Informative) Format of type test report ... 64
Appendix C (Normative) Test procedure of standard cycle of engine ... 68
Appendix D (Normative) Technical requirements for reference fuels ... 242
Appendix E (Normative) Test requirements of non-standard cycle of engine
... 245
Appendix F (Normative) On-board diagnostic system (OBD) ... 256
Appendix G (Normative) Requirements for proper operation of the NOx control
system ... 347
Appendix H (Normative) Durability of engine system ... 379
Appendix I (Normative) Requirements and inspection of production consistency
assurance ... 387
Appendix J (Normative) Technical requirements of in-use compliance ... 392
Appendix K (Normative) Portable emission measurement system (PEMS) along
actual road ... 407
Appendix L (Normative) Measurement method for pollutant emission of vehicle
chassis dynamometer ... 437
Appendix M (Normative) Special requirements for type test of liquefied
petroleum gas and natural gas engines and vehicles ... 442
Appendix N (Normative) Technical requirements for diesel-gas dual-fuel
engines and vehicles ... 448
Appendix O (Normative) Type test of alternative emission aftertreatment device
as an independent assembly ... 485
Appendix P (Normative) Acquisition of vehicle OBD and vehicle maintenance
information ... 499
Appendix Q (Normative) Technical requirements and communication data
format for remote emission management on-board terminal ... 501
Limits and measurement methods for emissions from
diesel fueled heavy-duty vehicles (CHINA VI)
1 Scope
This standard specifies the emission limits and test methods for gaseous and
particulate pollutants as emitted by the vehicles equipped with compression
ignition engine and its engines, as well as the emission limits and test methods
for gaseous pollutants emitted from the ignition engine vehicles and its engine
which use natural gas (NG) or liquefied petroleum gas (LPG) as fuel.
This standard is applicable to the type test, production consistency inspection,
supervisory inspection of emission from new produced vehicle, compliance
inspection of in-use vehicle of the category M2, M3, N1, N2, N3 which is equipped
with compression ignition and gas-fueled ignition engines as well as the
category M1 vehicles which have a total mass of more than 3500 kg.
The type test of whole vehicle according to this standard may be extended to
variants and modified vehicles which have a reference mass exceeding 2380
kg.
If the category M1, M2, N1, N2 vehicles which are equipped with compression
ignition and gas-fueled ignition engines have been type-tested according to GB
18352.6-2016, they may be exempted from the type test of this standard.
2 Normative references
This standard refers to the following documents or their terms. For undated
references, the latest edition applies to this standard.
GB/T 2624 Measurement of fluid flow by means of pressure differential
devices inserted in circular cross-section conduits running full (IDT ISO 5176)
GB/T 3730.2 Road vehicle - Masses - Vocabulary and codes
GB/T 8190.1 Reciprocating internal combustion engines - Exhaust emission
measurement - Part 1: Test-bed measurement of gaseous and particulate
exhaust emissions
GB/T 15089 Classification of power-driven vehicles and trailers
GB/T 17692 Measurement methods of net power for automotive engines
GB 18047 Compressed natural gas as vehicle fuel
GB 18352.6-2016 Limits and measurement methods for emissions from
light-duty vehicles (CHINA 6)
GB/T 19001 Quality management systems - Requirements
GB/T 27840 Fuel consumption test methods for heavy-duty commercial
vehicles
GB 30510 Fuel consumption limits for heavy-duty commercial vehicles
ISO 5725 Measurement method and result accuracy
ISO 7000 Equipment graphic symbol - Index and list
ISO 13400 Road vehicles - Internet protocol (DoIP)-based diagnostic
communication
ISO 15031 Road vehicles - Vehicles and emission diagnostics related
equipment communication
ISO 15031-3 Road vehicles - Communication between vehicle and external
equipment for emissions-related diagnostics - Part 3: Diagnostic connector
and related electrical circuits: Specification and use
ISO 15031-7 Road vehicles - Communication between vehicle and external
equipment for emissions-related diagnostics - Part 7: Data link security
ISO 15765-4 Road vehicles - Diagnostic communication over Controller
Area Network (DoCAN) - Part 4: Requirements for emissions-related
systems
ISO 27145 Road vehicles - Implementation of World-Wide Harmonized On-
Board Diagnostics (WWH-OBD) communication requirements
SAE J1708 Serial data communications between microcomputer systems in
heavy-duty vehicle applications
SAE J1939 Communication protocol of local area network (CAN bus) for
commercial vehicle's control system
SAE J1939-13 External diagnostic connector
SAE J1939-73 Application layer - diagnosing
SAE J2186 Electrical/electronic (E/E) data link security
ASTM E 29-06B Standard practice for using signi???cant digits in test data to
additional type test of engine. Except for engine test, all vehicles undergoing
type test are required to be subject to the test by the portable emission
measurement system (PEMS) as specified in 6.2.2.
4.1.1.4 Requirements for fuels of type test
4.1.1.4.1 When the parent engine is subjected to type test, it shall use the
reference fuel complying with the provisions of Appendix D of this standard.
4.1.1.4.2 For natural gas and liquefied petroleum gas engines (vehicles), it shall
use the fuel types as specified in Appendix M to carry out type test.
4.1.1.4.3 Type test of natural gas engines and LPG engines shall meet the
requirements of Tables M.1 and M.2 of Appendix M.
4.1.1.4.4 The type test of the dual-fuel engine shall meet the requirements of
Table N.2 of clause N.6.1.2.
4.1.1.4.5 If the fuel to be used in the design of the engine family is not included
in the reference fuel range specified in Appendix D, the manufacturer shall:
a) A clear description of the types of commercially available fuel that the
engine family can use.
b) Prove that the parent engine can meet the requirements of this standard
when burning commercially available fuel.
c) Prove that the engine can meet the in-use compliance requirements when
using the specified fuel in combination with any of the commercially
available fuels of any component.
4.1.2 Type test of engine family (parent engine)
4.1.2.1 When the engine is subject to type test, select a parent engine that can
represent the engine model or family. If the selected engine does not fully
represent the model or family as described in Appendix A, it shall select another
representative engine for testing.
4.1.2.2 When the whole vehicle is subject to type test, select a vehicle that can
represent the vehicle model (family) for type test. If the selected vehicle does
not fully represent the vehicle model (family) as described in clause 8.4, it shall
select another representative vehicle for testing.
4.1.2.3 The parent engine (or the base model) represents the emission level of
all engine models (vehicle models) in the family, the type test of the parent
engine (or the parent vehicle) may be extended to all members of the family.
Other members in the family do not need to be tested.
be disclosed after technical processing.
5 Signage of engine (vehicle)
5.1 General requirements
The engine's signage may be in the form of text and numbers, or in the form of
a two-dimensional code.
The signage must be concise and clear, its text, numbers or graphics shall be
clear, obvious, readable, not erased. The fixing method of the signage must be
firm throughout the life of the engine and must not be removed.
5.2 Location of engine signage
The installation position of the signage on the engine shall not hinder the normal
operation of the engine. In the service life of engine, it generally requires no
position change. In addition, when all the accessories required for engine
operation are installed, the signage shall be located where it is easy for normal
people to see.
The signage shall be close to or incorporated on the nameplate of the
manufacturer.
5.3 Contents of engine signage
The engine's signage shall contain at least the following:
a) Engine model;
b) Date of manufacture: Year, month, day ("day" is optional. If the date of
manufacture has been marked in other parts, it may not be indicated in
the signage repeatedly);
c) The words ?€?CHINA VI?€?;
d) The trademark or full name of the manufacturer;
e) Emission control key components (e.g., EGR, DOC, SCR, DPF, etc.).
5.4 Special requirements for natural gas and LPG engine (vehicle)'s
signages with a defined fuel range
5.4.1 For natural gas and liquefied petroleum gas engines with a defined fuel
range during type test, in addition to meeting the requirements of 5.3, it shall
also include the following information:
a) Limited to the use of natural gas of high (low) calorific value;
6.9.1 The manufacturer shall demonstrate that under all normal conditions,
especially at low temperatures, the NOx system can maintain its emission
control function.
6.9.2 The manufacturer shall report the information on the control strategy of
the exhaust gas recirculation system (EGR) and the selective catalytic
reduction system (SCR) in a low temperature environment to the competent
department of ecological environment under the State Council. The information
shall also include a description of the impact of this system running at low
temperature system onto the emission.
6.9.3 Ensure the normal operation of the NOx control measures, meet the
requirements of Appendix G. Follow the requirements of Appendix G to conduct
test and verification.
6.10 Requirements for duel fuel engine
Dual-fuel engines or vehicles that meet the requirements of this standard and
are tested according to Appendix N.
6.11 Requirements for replacement pollution control devices
The design, manufacture and installation of the replacement pollution control
device shall achieve the performance of the original emission control device, so
that the pollutant emissions of the engine and the vehicle comply with the
provisions of this standard, thereby effectively control the pollutant emission
under normal conditions of use and throughout the full life of the vehicle.
The replacement pollution control device shall be type-tested according to the
provisions of Appendix O.
6.12 Technical requirements for whole vehicle
6.12.1 The vehicle manufacturer shall install the engine on the whole vehicle
and shall strictly follow the installation requirements specified in Chapter 7, to
ensure that the vehicle meets the non-standard cycle emission requirements
as specified in Table 4.
6.12.2 The vehicle manufacturer shall ensure that after assembling the engine
into the whole vehicle, the OBD system and the NOx control system are not
changed; meanwhile when verified according to Annex KE along actual road, it
can still meet the technical requirements as specified in clause 6.8 and clause
6.9.
6.12.2.1 The vehicle shall have an OBD diagnostic interface that meets the
requirements of ISO 15031. The diagnostic interface shall be in the vicinity of
the driver in the vehicle, in a location that is easy to find and access, marked
shall not exceed the power absorbed by the accessories as specified in
Appendix A for engines that have been type-tested.
7.1.4 The characteristics of the exhaust aftertreatment system shall be
consistent with the declarations in the engine type test in Appendix A.
7.2 Installation of type-tested engine on vehicle
An engine that is type-tested as an independent technical assembly shall meet
the following requirements when installed on a vehicle:
a) The OBD systems shall, when installed according to the requirements of
Annex FA, meet the installation requirements of the engine manufacturer
as specified in Appendix A.
b) The NOx control system shall, when installed according to the provisions
of Annex GD, meet the installation requirements of the engine
manufacturer as specified in Appendix A.
c) The dual-fuel engines that are type-tested as independent technical
assemblies shall, when installed on vehicle, also meet the requirements
of N.6.3 and N.8.2, as well as the installation requirements of engine
manufacturer as specified in Annex AA.
8 Family and parent engine
8.1 Engine family
8.1.1 Determine the parameters of engine family
The same engine family must have the basic parameters as specified in C.4.2.
For dual-fuel engines, the engine family shall also comply with the additional
requirements of N.3.1 of Appendix N.
8.1.2 Selection of parent engine
The parent engine of the family shall be selected according to the requirements
specified in C.4.3.
For dual-fuel engines, the selection of parent engine shall also meet the
additional requirements of N.3.2.
8.1.3 Expansion of engine family
8.1.3.1 If the requirements of 8.1.1 are met, it may inco...