GB/T 19233-2020 English PDF (GBT19233-2020)

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GB/T 19233-2020: Measurement methods of fuel consumption for light-duty vehicles
GB/T 19233-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 40
Replacing GB/T 19233-2008
Measurement Methods of Fuel Consumption for Light-
duty Vehicles
ISSUED ON: JUNE 2, 2020
IMPLEMENTED ON: JANUARY 1, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative References ... 6 
3 Terms and Definitions ... 6 
4 General Requirements ... 7 
5 Test Conditions ... 7 
6 Measurement of CO2, CO and HC Emissions ... 9 
7 Calculation of Fuel Consumption ... 10 
8 Production Conformity ... 13 
9 Approval Extension ... 18 
10 Test Lineage ... 19 
Appendix A (informative) Measurement Method of Fuel Consumption in Low-
temperature Environment ... 21 
Appendix B (informative) Measurement Method of Fuel Consumption when Air-
conditioning is Turned on ... 25 
Appendix C (informative) Measurement Method of Fuel Consumption in High-
altitude Environment ... 30 
Appendix D (informative) Fuel Consumption Calculation Formulas of Vehicles
of Other Fuel Types ... 33 
Appendix E (normative) Type Test Result Report ... 37 
Bibliography ... 42 
Measurement Methods of Fuel Consumption for Light-
duty Vehicles
1 Scope
This Standard stipulates the test and calculation method that uses the carbon balance
method to calculate fuel consumption, and the inspection and determination method
of production conformity through the determination of automobile carbon dioxide (CO2),
carbon monoxide (CO) and hydrocarbon (HC) emissions.
This Standard is applicable to Type-N1 vehicles, whose maximum design speed is
greater than, or equals to 50 km/h, and Type-M1 and Type-M2 vehicles whose
maximum design total mass does not exceed 3,500 kg, powered by ignition engine or
compression ignition engine; Type-M1 vehicles whose maximum design total mass
exceeds 3,500 kg may take this as a reference.
This Standard is applicable to vehicles that can burn gasoline or diesel, but not
applicable to hybrid electric vehicles. Vehicles of other fuel types may take this as a
reference.
2 Normative References
The following documents are indispensable to the application of this document. In
terms of references with a specified date, only versions with a specified date are
applicable to this document. In terms of references without a specified date, the latest
version (including all the modifications) is applicable to this document.
GB/T 1884 Crude Petroleum and Liquid Petroleum Products - Laboratory
Determination of Density - Hydrometer Method
GB/T 15089-2001 Classification of Power-driven Vehicles and Trailers
GB 18352.6-2016 Limits and Measurement Methods for Emissions from Light-duty
Vehicles (CHINA 6)
GB/T 38146.1-2019 China Automotive Test Cycle - Part 1: Light-duty Vehicles
3 Terms and Definitions
What is defined in GB/T 15089-2001, GB 18352.6-2016, GB/T 38146.1-2019, and the
following terms and definitions are applicable to this document.
The laboratory environment shall comply with the requirements of C.1.2.2 in GB
18352.6-2016.
5.2 Test Vehicles
5.2.1 All components of the test vehicle shall satisfy the requirements for mass
production. If the test vehicle differs from the mass production status, then, detailed
instructions are required.
5.2.2 The vehicle manufacturer or its authorized agent shall submit a vehicle
representing the model being tested to an inspection institution responsible for the type
test. If the vehicle manufacturer or its authorized agent chooses to use the interpolation
lineage, a representative vehicle in the interpolation lineage shall be selected. In
addition, the same test vehicle should be adopted to represent Vehicle H and Vehicle
L through different road load settings.
5.2.3 The test vehicle may be running-in in accordance with the demands of the vehicle
manufacturer or its authorized agent. Ensure that the mechanical condition is good,
and the run-in mileage does not exceed 15,000 km.
5.2.4 Lubricating agents stipulated by the vehicle manufacturer shall be used and
indicated in the test result report.
5.2.5 The other settings1 of the test vehicle shall comply with the requirements of
C.1.2.4.2 ~ C.1.2.4.5 and C.1.2.4.7 in GB 18352.6-2016.
5.3 Test Fuel
5.3.1 The type test shall comply with the lowest reference mark recommended by the
vehicle manufacturer. Reference fuel that meets the requirements of Appendix K in GB
18352.6-2016 shall be used; no additional oxygenate is allowed in the fuel. When using
fuel types not specified in Appendix K of GB 18352.6-2016, commercial vehicle fuels
that comply with relevant national standards shall be used.
5.3.2 When performing the calculation described in 4.5, the value of fuel parameters is
as follows:
a) Density: the density of test fuel measured in accordance with the method of
GB/T 1884;
b) Hydrogen-carbon ratio: a fixed value: 1.85 for gasoline and 1.85 for diesel.
5.4 Test Equipment
The technical characteristics of test equipment shall comply with the stipulations of
1 In the relevant quoted clauses of GB 18352.6-2016, the “environmental protection authority” refers to
the “automotive fuel consumption authority”; “CO2 emission” refers to “fuel consumption” in this Standard.
FCave i---the arithmetic mean value of fuel consumption of the ith speed section,
expressed in (L/100 km);
Di---the theoretical driving distance of the ith speed section, expressed in (km).
h) If the type approval value does not adopt the comprehensive value submitted
and declared by the vehicle manufacturer, the type approval value of fuel
consumption of each speed section shall be calculated in accordance with the
arithmetic mean value of the test result of fuel consumption of corresponding
speed section.
7.6 The format of the type test result report is shown in Appendix E.
8 Production Conformity
8.1 Production Conformity Test and Requirements
8.1.1 General requirements
8.1.1.1 As a general rule, the content and type approval value in the test result report
in Appendix E shall be used as the basis to review the production conformity guarantee
measures of vehicles in terms of fuel consumption.
8.1.1.2 If a certain model has several extended models or interpolation lineage models,
the production conformity test shall be conducted on the basic model described in the
application materials of the first type test. If the production of the basic model of the
first type test has been suspended, the production conformity test shall be performed
on the extended models or interpolation lineage models.
8.1.2 Production conformity test
8.1.2.1 The reference fuel mark number used in the production conformity test shall be
the same as that in the type test.
8.1.2.2 Randomly take 3 vehicles from a batch of products, in accordance with the
stipulations of Chapter 4 ~ Chapter 6, conduct the test.
8.1.2.3 When the vehicle manufacturer’s production standard deviation is satisfying,
the test and determination may be performed in accordance with 8.2. When the vehicle
manufacturer’s production standard deviation is obviously dissatisfying or unavailable,
the test and determination shall be performed in accordance with 8.3.
8.1.2.4 Take the test of 3 sample vehicles as the basis. In accordance with the
determination criteria provided in the corresponding table, determine it. Once it is
determ...