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GB 18352.6-2016: Limits and measurement methods for emissions from light-duty vehicles (CHINA 6) Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB 18352.6-2016: Limits and measurement methods for emissions from light-duty vehicles (CHINA 6)---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/GB18352.6-2016GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 13.040.50 Z 64 Partly replacing GB 18352.5-2013 Limits and measurement methods for emissions from light-duty vehicles (CHINA 6) Issued on: DECEMBER 23, 2016 Implemented on: JULY 01, 2020 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Ministry of Environmental Protection. Ministry of Environmental Protection of P. R. China Table of ContentsForeword... 5 1 Scope... 8 2 Normative references... 9 3 Terms and definitions... 10 4 Pollution control requirements... 17 5 Type inspection... 18 6 Type inspection extension... 28 7 Production consistency... 35 8 In-use conformity... 41 9 Implementation of standard... 421 ScopeThis standard applies to light-duty vehicles (including hybrid electric vehicles) powered by ignition engines or compression-ignition engines with a maximum design speed of 50 km/h or more. This standard specifies the emission limits and measurement methods for exhaust emissions at normal temperature and low temperature, real driving emission (RDE) exhaust emissions, crankcase pollutants, evaporative emissions, and refueling pollutants, as well as the technical requirements and measurement methods for the pollutant control device durability and on-board diagnostics (OBD) systems of light-duty vehicles which are equipped with ignition type engine. This standard specifies the emission limits and measurement methods for exhaust emissions at normal temperature and low temperature, real driving emission (RDE) exhaust emissions, crankcase pollutants, as well as the technical requirements and measurement methods for the pollutant control device durability and on-board diagnostics (OBD) systems of light-duty vehicles which are equipped with compression-ignition type engine. This standard specifies the requirements and confirmation of light-duty vehicle type inspection, production conformance and in-use conformity inspection and determination methods. This standard also specifies special requirements for the light-duty vehicles which use liquefied petroleum gas (LPG) or natural gas (NG). This standard also specifies the type inspection procedures for pollutant emissions of the alternative pollutant control devices which are used as an independent technology assembly and proposed to be installed on light-duty vehicles.2 Normative referencesThe following documents or clauses therein are referenced in this standard. For undated references, the latest edition is applicable to this standard. GB 1495 Limits and measurement methods for noise emitted by accelerating motor vehicles GB 3847 Limits and measurement methods for exhaust smoke from C.I.E. (Compression Ignition Engine) and vehicle equipped with C.I.E. GB 7258 Safety specifications for power-driven vehicles operating on roads GB/T 15089 Classification of power-driven vehicles and trailers GB 17691 Limits and measurement methods for exhaust emissions from compression ignition and gas fueled positive ignition engines of vehicles (III IV V)3 Terms and definitionsThe following terms and definitions apply to this standard. 3.1 Light-duty vehicle The category M1, M2, and N1 vehicles with a maximum design total mass of no more than 3500 kg. 3.2 Vehicle of category M1, M2, N1 and N2 In accordance with the provisions of GB/T 15089. Category M1 vehicle refers to a passenger vehicle that includes no more than nine seats including a driver's seat. Category M2 vehicle refers to a passenger vehicle that includes more than nine seats including a driver's seat, and a maximum design mass of no more than 5000 kg. Category N1 vehicle refers to a goods vehicle with a maximum design total mass not exceeding 3500 kg. Category N2 vehicle refers to a goods vehicle that has a maximum design total mass of more than 3500kg but does not exceed 12000 kg.4 Pollution control requirements4.1 Type inspection requirements 4.1.1 The vehicles produced and imported by the vehicle production enterprises (including imported vehicle enterprises) are subject to type inspection in accordance with this standard. A type inspection of a vehicle type includes exhaust emissions, real exhaust emissions, crankcase pollutants, evaporative emissions, refueling process pollutants, pollution control device durability, and OBD systems. 4.1.2 In order to carry out the tests described in clause 5, a vehicle that can represent a type inspection model shall be selected for testing. Two identical sets of canisters are selected for the test when performing type IV and type VII tests. 4.1.3 To carry out the tests described in J.4 and J.5, a vehicle that can represent the OBD family shall be selected. If the vehicle manufacturer is not sure that the selected vehicle can fully represent the model or family of vehicles described in Appendix JB, one more vehicle shall be added for the tests described in J.4 and J.5. 4.1.4 If the technical requirements of all aspects specified in clause 5 are met, the model passes the type inspection. Type inspection report is shown in Appendix B. 4.1.5 The vehicle manufacturer or testing organization shall seal the prototype of the type inspection for one year for future reference. After one year, the ECU of the prototype will be sealed for future reference. 4.1.6 The competent department of environmental protection shall confirm the results of the type inspection in accordance with the method specified in Appendix N of this standard. 4.2 Environmental production consistency and in-use conformity 4.2.1 Vehicle manufacturers shall ensure the consistency of environmentally friendly production of mass-produced vehicles in accordance with the provisions of this standard, and in accordance with the requirements of Appendix N of this standard, provide the materials for production consistency assurance to the competent environmental protection authorities. 4.2.2 Vehicle manufacturers shall ensure the in-use conformity of vehicles in accordance with the provisions of this standard, and in accordance with the requirements of Appendix O of this standard, provide the in-use conformity related materials to the competent environmental protection authorities. 4.3 Information disclosure Vehicle manufacturers shall disclose the relevant pollution control and inspection information in Appendix A and Appendix B. If the relevant contents concern to the company's confidential information, they may be disclosed after technical processing.5 Type inspection5.1 General requirements 5.1.1 Components affecting exhaust emissions, real driving emissions, crankcase pollutants, evaporative emissions and refueling emissions, durability of pollution control devices, and OBD systems shall be designed, manufactured, and assembled to meet the requirements of this standard under the normal conditions of use regardless of the type of vibration encountered. 5.1.2 The production enterprise shall adopt technical measures to ensure that the vehicle can effectively control its exhaust emissions, actual exhaust emissions, crankcase pollutants, evaporative emissions, and refueling emissions within the limits specified in this standard under normal use conditions and normal life span. This also includes hoses and their joints used in emission control systems, as well as the reliability of individual wiring, which shall be manufactured to meet their original design requirements. All vehicles shall be equipped with an OBD system that shall be designed, manufactured, and installed on the vehicle to ensure that the vehicle recognizes and records the type of degradation or failure throughout its full life. It is forbidden to use defeat devices. During the full life of the vehicle, the technical measures taken by the production enterprises and the OBD system of the vehicle equipment shall not be transformed, unless it is necessary to solve the problem of vehicle emission defects, and the manufacturer has given written explanation of the transformation. 5.1.3 One of the following measures shall be taken to prevent excessive evaporative emissions or fuel spillage due to the loss of the fuel tank cap. (1) Automatically opened and closed fuel tank caps that cannot be removed; (2) To prevent excessive evaporative emissions caused by the loss of the fuel tank cap from the structural design; (3) Any other measures with the same effect. For example, fastened fuel tank cap; or otherwise the fuel tank cap is locked, and the vehicle ignition share the same key, and the key can only be removed when the fuel tank cap is locked. 5.1.4 Safety provisions for electronic control systems 5.2 Type inspection test items The test items required for different types of vehicles during type inspection are as shown in Table 1. 5.3 Test description and requirements6 Type inspection extensionFor the vehicles that have been type-tested in accordance with this standard, the results can be extended to other vehicle models that meet the following requirements. Vehicle models that have passed type inspection are reference models (evaporative or refueling emissions tests are based on the worst performing models, for example, for the vehicle models with the largest fuel tank capacity relative to the working capacity of the canister, if this ratio is same, it shall select the vehicle models having the minimum desorption amount), the other models are extended models. The extended models and reference models meeting the requirements of 6.1 and 6.2 belong to the same exhaust emission system family; the extended models and reference models meeting the requirements of 6.3 belong to the same evaporative emission system family; the extended models and reference models meeting the requirements of 6.4 belong to the same OBD family; the extended model and reference models meeting the requirements of 6.5 belong to the same durability family. 6.1 Extensions related to exhaust emissions (type I, type II, and type VI tests) 6.1.1 Basic engine features and parameters The engine's model, production plant, fuel type, rated power, and fuel injection method (direct injection, non-direct injection) are the same. 6.1.2 Pollution control device 6.1.2.1 The following pollution control devices have the same specifications and 6.1.3 Test mass 6.1.3.1 If the test mass is less than 1.03 times the test mass of the reference vehicle model, it can be extended to this vehicle model. 6.1.3.2 For vehicles of category II, if the test mass of the vehicle to be extended is less than 1.03 times the test mass of the reference vehicle model, and the pollutant emissions measured by the reference vehicle are within the limits specified by the vehicle to be extended, it can be extended to this vehicle model. 6.1.4 Overall transmission ratio Under the following conditions, the reference vehicle model can be extended to other vehicle models with only different transmission ratios. 6.1.4.1 For each transmission ratio used in type I and type VI tests, the ratio must be determined. Where, V1 and V2 are the speeds corresponding to the reference vehicle model and the required extension model when the engine speed is 1000 r/min. 6.1.4.2 For each transmission ratio, if E ≤ 8%, it can be extended to this vehicle model without the need to repeat type I and type VI tests. 6.1.5 Vehicle models with different test mass and transmission ratio As long as the conditions specified in 6.1.3 and 6.1.4 above are fully met, a model that has passed the type inspection can be extended to other vehicle models with different test mass and transmission ratio. 6.1.6 The same drive type Two-wheel drive and non-full-time four-wheel drive vehicle models can be extended to each other, full-time four-wheel drive can be one-way extended to two-wheel drive. The drive type is divided into. two-wheel drive, non-full-time four-wheel drive (by manual or software switching drive mode), full-time four- wheel drive (drive mode cannot be switched manually or through software). 7.1 Basic requirements 7.1.1 In order to ensure that mass-produced vehicles, systems, components, and independent technology assemblies are in line with the status after type inspection, and that the emission of the mass-produced vehicle is up to standard, the manufacturer shall formulate and implement a production consistency assurance plan for each vehicle model family. A production consistency assurance plan may include one or more emission family. 7.1.2 Vehicle manufacturer shall formulate a production consistency assurance plan before mass production of vehicles and report to the competent department of environmental protection for registration. For specific requirements of the production consistency assurance plan for vehicle manufacturers, see Appendix N. OBD's production consistency assurance shall also meet the requirements of JA.7 in Appendix J. 7.1.3 If a non-conformity occurs, the vehicle manufacturer shall re-establish the production consistency assurance system as soon as possible, and shall include the vehicle models of the same family that may be affected by the same defects. 7.1.4 In the production consistency test, all the tests except the type II and type V tests shall use the reference fuel that meets the requirements of Appendix K. The type II and type V tests shall use the commercially available vehicle fuel which is in conformity with the CHINA 6 gasoline/diesel standard. For the use of fuel types not included in Appendix K, the commercially available vehicle fuels that comply with the relevant national standards shall be used. 7.2 Type I test production consistency inspection 7.2.1 When the test is carried out, if the type-tested vehicle has one or more extensions, this test can be carried out on the vehicle model described in Appendix A or on the relevant extended model. 7.2.2 After the competent department of environmental protection selects the production consistency inspection prototype, the manufacturer shall not make any adjustment to the selected prototype. 7.2.2.1 Three vehicles shall be arbitrarily selected in batch products of the same family and the tests shall be carried out in accordance with the provisions of Appendix C. The test results shall be corrected by using the deterioration factor of the type inspection report and shall meet the requirements of 5.3.1.4. 7.2.2.2 Production consistency inspection results are determined in accordance with the following criteria. - If the emission results of various pollutants of three vehicles do not exceed 1.1 times the limit, and the average value does not exceed the limit, the production consistency inspection of the type I test is determined as qualified. - If a certain pollutant emission result of any of the three vehicles exceeds 1.1 times the limit value, or if the average value exceeds the limit value, the production consistency inspection of the type I test is determined as disqualified. 7.2.3 Samples shall be taken directly from the vehicles that are qualified or in the sale to perform test. 7.3 Production consistency inspection of type II test 7.3.1 Randomly select one of the three vehicles drawn from 7.2 and carry out this test in accordance with Appendix D. If this vehicle satisfies the requirements of 5.3.2.2, the production consistency of the type II test is determined to meet the requirements. 7.3.2 If this vehicle does not meet the production consistency requirements of the type II test, if the manufacturer submits a written application, the environmental protection authority shall test the other two vehicles drawn in 7.2 in accordance with Appendix D. If both vehicles meet the requirements of 5.3.2.2, the production consistency of the type II test is determined to meet the requirements. Otherwise, the production consistency of the type II test does not meet the requirements. 7.4 Production consistency inspection of type III test 7.4.1 When performing the type III tests, it shall be performed for all vehicles drawn in 7.2. 7.4.2 When tested in accordance with Appendix E, the measurement results shall meet the requirements of 5.3.3.2.8 In-use conformity8.1 For vehicle models that have passed the pollutant emission type inspection, the manufacturer shall take appropriate measures to ensure the in-use conformity. In-use conformity inspection requirements are as shown in Appendix O. 8.2 The in-use conformity inspection procedure shall confirm that the pollution control device is always functioning properly under normal conditions of use and during the useful life of the vehicle. 8.3 The in-use conformity inspection shall cover the useful life span of all vehicles. The manufacturer shall conduct at least the in-use conformity self- inspection at least once a year, ensure that the requirements for self- examination of vehicles with low mileage (10000 - 60000 km), medium mileage (60000 - 110000 km) and high mileage (110000 - 160000 km) are completed within 8 years. The production enterprise shall report the results to the competent department of environmental protection every year. 8.4 The manufacturer shall record detailed information on the OBD failures recorded during the claims, repairs, and maintenances of the relevant parts of the emission warranty (see Appendix AB of Appendix A), the frequency and cause of the associated parts and system failures shall also be recorded in detail. For the parts with fault maintenance rate exceeding 4%, it shall submit a report to the competent department of environmental protection within 30 working days. 8.5 The competent department of environmental protection conducts in-use conformity spot checks on the use of vehicles that do not exceed 160000 km (or 12 years, whichever comes first). 8.6 When it requires taking more vehicles for test in the conformity spot check, if the manufacturer submits a written application to terminate the test of vehicle taken, it is determined that the in-use conformity inspection is disqualified.9 Implementation of standard9.1 Type inspection From the date of issuance of this standard, type inspections can be conducted in accordance with this standard. 9.2 Sales and registration From July 1, 2020, all light-duty vehicles sold and registered shall comply with the requirements of this standard. Type I tests shall meet the requirements of 6a limit value. From July 1, 2023, all light-duty vehicles sold and registered shall meet the requirements of this standard. Type I tests shall meet the requirements of 6b limit value. The people's governments of provinces, autonomous regions, and municipalities directly under the Central Government may implement this standard in advance in areas where conditions are met. The areas that implement this standard in advance shall report to the competent department of environmental protection under the State Council for registration before implementation. 9.3 Production consistency inspection For light-duty vehicles that have been type-tested in accordance with this standard, their production consistency inspection shall meet the requirements of this standard. 9.4 In-use conformity inspection For light-duty vehicles manufactured, sold and registered in accordance with the requirements of this standard, the in-use conformity inspection shall meet 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. |
