GB 17691-2018 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB 17691-2018 | English | 2705 |
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Limits and measurement methods for emissions from diesel fueled heavy-duty vehicles (CHINA VI)
| Valid |
| GB 17691-2005 | English | 140 |
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Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles (III, IV, V)
| Obsolete |
| GB 17691-2001 | English | RFQ |
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Limits and measurement methods for exhaust pollutants from compression ignition (C. I.) engines of vehicles
| Obsolete |
| GB/T 17691-1999 | English | RFQ |
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Limits and measurement method for exhaust pollutants from compression ignition (C. I.)engines and vehicles equipped with C. I. engines
| Obsolete |
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GB 17691-2018: Limits and measurement methods for emissions from diesel fueled heavy-duty vehicles (CHINA VI)
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB17691-2018
GB
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
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
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
3 Terms and definitions
The following terms and definitions apply to this standard.
4 Pollution control requirements
4.1 Type test
4.1.1 General requirements
4.1.3 Change of product type
Any modification to the type-tested engine model or vehicle model shall not
adversely affect the discharge of pollutants, and still meet the requirements of
this standard. If the change item belongs to the public information, the vehicle
manufacturer shall disclose the information on product change. If the change
item may affect the emission performance, it shall conduct the corresponding
test, disclose the content of product change and the test results.
4.2 Environmental production consistency and in-use compliance
4.2.1 Vehicle and engine manufacturers shall ensure the environmental
production consistency of mass-produced vehicles and engines according to
the provisions of this standard, provide relevant production guarantee materials
according to the requirements of Appendix I of this standard. Vehicle
manufacturer shall ensure that the discharge of new produced vehicles meets
the standards according to the provisions of this standard, provide relevant
materials for the self-inspection of new produced vehicle's emission to the
competent ecological environment department under the State Council
according to the requirements of Chapter 9 of this standard. The competent
department of ecological environment may press the conduct supervisory
sampling inspection of the new produced vehicles according to the provisions
of chapter 9.
4.2.2 Vehicle and engine manufacturers shall ensure the in-use compliance of
vehicles and engines according to the provisions of this standard, provide self-
inspection plans for compliance according to the requirements of Appendix J.
The vehicle manufacturer shall ensure that the vehicle's emission meets the
standards in actual normal use according to the provisions of this standard,
provide the self-inspection report on compliance according to the provisions of
Chapter 10 to the competent department of ecological environment under the
State Council. The competent department of ecological environment may follow
Chapter 10 of this standard to conduct sampling inspection for in-use
compliance.
4.3 Disclosure of information
Vehicles covered by this standard shall be subject to information disclosure by
the vehicle manufacturer according to the requirements of Appendix A and
Appendix B of this standard. Relevant content related to corporate secrets may
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;
6 Technical requirements and tests
6.1 General requirements
6.1.1 The components that affect the emission of pollutants from the engine
shall be designed, manufactured, assembled to meet the requirements of this
standard and its implementation measures when the engine is in normal use.
6.1.2 The manufacturer shall adopt technical measures to ensure that the
vehicle can effectively control the emission of exhaust pollutants during the full
life of the vehicle under normal use conditions.
6.1.2.1 The measures as described in 6.1.2 shall ensure the safety of the hoses,
joints, their connections used in the emission control system according to the
original design drawings.
6.1.2.2 The engine (vehicle) shall be subjected to an emission test under the
test conditions specified in this standard, the results shall comply with the
corresponding limits specified in this standard.
6.1.2.3 The design, manufacture, installation of any engine system and
components that affect emissions shall be such that the engine complies with
the requirements of this standard under normal conditions of use. The
manufacturer shall ensure to meet the non-standard cyclic emission
requirements of 6.4 and Appendix E, to enable the vehicle to effectively control
the emission of pollutants within the range of possible operating environmental
conditions and operating conditions that may be encountered.
6.1.2.4 Vehicles equipped with vanadium-based SCR catalysts shall not leak
vanadium-containing compounds into the atmosphere during the full life.
Meanwhile during the type test, submit relevant information (such as
temperature control strategies and related test reports), to prove that under any
operating conditions during vehicle use, the SCR inlet temperature is below 550
degrees.
6.1.2.5 It is forbidden to use a defeat strategy that reduces the effectiveness of
the emission control device. All tampering for pollution control devices will
cause the emissions to fail to reach standard.
6.1.2.6 The safety of the electronic control system shall meet the requirements
of F.4.8.
6.1.3 The manufacturer shall organize the information of the emission control
strategy of the model into a package and meet the requirements of A.3.5.
6.1.4 The tailpipe of the vehicle shall not be oriented to the right and directly
below, its design shall be convenient for emission detection, visible from the
outside. It is encouraged to be higher than the vehicle. If the exhaust port of a
dangerous goods transport vehicle and a special operation vehicle cannot meet
the requirements due to the structural limitation of the vehicle, it shall be
reported to the competent department of ecological environment under the
State Council.
6.1.5 The vehicle manufacturer shall minimize the NOx emissions of the parent
engine (the front end of the aftertreatment device), report the emission (data)
and test methods of the parent engine to the competent department of
ecological environment under the State Council.
6.1.6 The manufacturer shall clearly inform the user to add and use the
reagents which comply with requirements in time, to ensure that the vehicle can
meet the emission requirements of this standard in actual use.
6.2 Type test items
6.2.1 When the engine type (family) is subject to the type test according to this
standard, the test items required to be carried out are as shown in Table 1.
7 Installation on vehicles
For vehicles as covered by this standard, the manufacturer shall ensure that
the engine is installed according to the installation requirements of this chapter.
7.1 Requirements for installation of engine on the vehicle
7.1.1 The intake pressure drop shall not exceed the pressure drop as specified
in Appendix A for engines that have been type-tested;
7.1.2 Exhaust back pressure shall not exceed the back pressure as specified
in Appendix A for engines that have been type-tested;
7.1.3 The power absorbed by the accessories required for engine operation
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
8.2 OBD family
OBD family shall be determined according to F.6.2.The basic design
parameters shared by the engine system in the family shall be the same.
8.3 Engine-aftertreatment system family
The engine-aftertreatment system family shall be determined according to H.2.
The exhaust aftertreatment system of the engine in the family shall have the
same technical specifications and installation methods. The engines of different
engine families may be combined into the same engine- aftertreatment system
family.
8.4 Vehicle family
For vehicle models that are type-tested according to this standard, the results
can be extended to other vehicle models that meet the requirements of 8.4.1.
The vehicle model that has passed the type test is the parent vehicle, the rest
vehicle models are extended vehicles. The extended vehicles and parent
vehicles belong to the same vehicle family.
8.4.1 If the following conditions are met at the same time, it shall be
considered as the same vehicle family
a) Vehicles that are produced by the same manufacturer;
b) Chassis is produced by the same manufacturer;
c) Engine is the same model (or family);
d) The categories of vehicles are the same, such as category M1, M2, M3, N1,
N2, N3 vehicles (excluding urban vehicles such as buses, postal vehicles
and sanitation vehicles), urban vehicles such as buses, postal vehicles
and sanitation vehicles.
8.4.2 For modified vehicles, it may be considered same as the parent vehicle
that meets the requirements of paragraphs b) ~ d) of 8.4.1.
9 Up-to-standard requirements and inspection of new
produced vehicles
9.1 General requirements
9.1.1 Vehicle and engine manufacturers shall take measures according to
Appendix I to ensure production consistency.
9.1.2 Engine manufacturers must take measures to ensure that the engine,
system, component or independent technology assembly is consistent with the
engine type that has been type-tested.
10 Requirements and inspection of in-use compliance
10.1 General requirements
10.1.1 The manufacturer shall take measures to ensure the in-use compliance
of the vehicle or engine.
10.1.2 The technical measures adopted by the manufacturer shall ensure that
under the normal conditions of use, the exhaust pollutant emissions of the
vehicle during the full life cycle can be effectively controlled.
10.2 Inspection of in-use compliance
The in-use compliance of the in-use vehicle (engine) shall, under the normal
conditions of use, within the useful life, be checked according to the provisions
of Appendix J of this standard. The manufacturer's self-inspection of in-use
compliance shall be carried out according to the provisions of 10.2.1.The
competent department of ecological environment shall conduct sampling
inspection according to the requirements of 10.2.2.
10.2.1 Self-inspection of manufacturer
11 Implementation of standard
11.1 Type test
From the date of publication of this standard, type test can be carried out
according to this standard.
11.2 Production, import, sale, registration
This standard is divided into two stages (6a and 6b) for implementation. The
main differences of technical requirements are as shown in Table 8.From the
date of implementation as specified in Table 7, any new vehicle that does not
meet the requirements of the corresponding stage of this standard shall not be
produced, imported, sold, registered; any new engines that do not meet the
requirements of the corresponding stage of this standard shall not be produced,
imported, sold, put into use.
11.3 Inspection of production consistency of engine
For engines that pass the type test according to this standard, the production
consistency inspection shall comply with the requirements of this standard.
11.4 Up-to-standard supervisory inspection of new produced vehicle
For vehicles that pass the type test according to this standard, the supervisory
inspection of the new produced vehicles shall comply with the requirements of
this standard.
11.5 Inspection of in-use compliance
For engines that are produced, imported, sold, as well as the vehicles that are
produced, imported, sold, registered according to the requirements of this
standard, the inspection of in-use compliance shall comply with the
requirements of this standard.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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