This standard specifies the limits and measurement methods for exhaust emissions at normal temperature and low temperature, exhaust emissions at double idling speed, crankcase emissions and evaporative emissions as well as the technical requirements and measurement methods for the durability of pollution control devices and the onboard diagnostic system (hereinafter referred to as “OBD system”) of the light-duty vehicles equipped with positive-ignition engines.
This standard specifies the limits and measurement methods for exhaust emissions at normal temperature and smoke opacity at free acceleration as well as the technical requirements and measurement methods for the durability of pollution control devices and the OBD system of the light-duty vehicles equipped with compression-ignition engines.
The standard specifies the type approval requirements, and the check for and procedure for verifying the production conformity and in-service conformity of light-duty vehicles.
This standard also specifies the special requirements for the light-duty vehicles fuelled with liquefied petroleum gas (LPG) or natural gas (NG).
This standard also specifies the type approval procedure in terms of emissions for the replacement pollution control devices intended to be installed on the light-duty vehicles as separate technical units.
This standard also specifies the technical requirements for vehicles that use a reagent for the exhaust after-treatment system and the emission test procedure for a vehicle equipped with a periodically regenerating system.
The standard is applicable to the light-duty vehicles equipped with positive-ignition engine or compression-ignition engine and with the maximum design speed larger than or equal to 50km/h (including the hybrid electric vehicles).
At the manufacturer's request, the vehicle of category M1, M2 and N2 with a maximum mass exceeding 3,500kg but a reference mass not exceeding 2,610kg may be subjected to type approval in accordance with this standard; the vehicle types with the type approval granted under this standard may be extended from vehicles mentioned above to vehicles of category M1, M2, N1 and N2 with a reference mass not exceeding 2,840kg and which meet the corresponding requirements.
This standard is not applicable to the vehicles which have been granted with type approval of China V under GB 17691-2005.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For undated references, the latest edition of the normative document applies.
GB 1495 Limits and measurement methods for noise emitted by accelerating motor vehicles
GB 3847-2005 Limits and measurement methods for exhaust smoke from C.I.E. (Compression Ignition Engine) and vehicle equipped with C.I.E.
GB 7258 Technical specifications for safety of power-driven vehicles operating on roads
GB/T 15089-2001 Classification of power-driven vehicles and trailers
GB 17691-2005 Limits and measurement methods for exhaust pollutants from compression ignition and gas fuelled positive ignition engines of vehicles (III, IV, V)
GB 18285 Limits and measurement methods for exhaust pollutants from vehicles equipped ignition engine under two-speed idle conditions and simple driving mode conditions
GB/T 19001-2008 Quality management systems - Requirements
GB/T 19755 Measurement methods for emissions from light-duty hybrid electric vehicles
HJ/T 390 Technical requirement for environmental protection product - Control system of fuel evaporative pollutants from vehicle with petrol engine
HJ 509 Determination of platinum, palladium and rhodium loading in the vehicle-used ceramic catalytic converters - Inductive coupled plasma - optical emission spectrometry and inductive coupled plasma - mass spectrometry
ISO 2575-1982 Road vehicles - Symbols for controls, indicators and tell-tales
ISO 8422-1991 Sequential sampling plans for inspection by attributes
ISO 9141-2 Road vehicles - Diagnostic systems - Part 2: CARB requirements for interchange of digital information
ISO 14230-4 Road vehicles - Diagnostic systems - Keyword Protocol 2000 - Part 4: Requirements for emission-related systems
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 15031-4 Road vehicles - Communication between vehicle and external equipment for emissions-related diagnostics - Part 4: External test equipment
ISO 15031-5 Road vehicles - Communication between vehicle and external equipment for emissions related diagnostics - Part 5: Emissions-related diagnostic services
ISO 15031-6 Road vehicles - Communication between vehicle and external equipment for emissions-related diagnostics - Part 6: Diagnostic trouble code definitions
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 - Diagnostics on Controller Area Network (CAN) - Part 4: Requirements for emissions-related systems
EN 1822 High efficiency air filters (EPA, HEPA and ULPA)
SAEJ 1850 Class B data communications network interface
SAEJ 2186 E/E data link security
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
light-duty vehicle
vehicle of category M1, M2 and N1 having a maximum mass not exceeding 3,500kg
GB 18352.5-2013 The following standards are cited：
