GB/T 19233-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 19233-2020 | English | 325 |
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Measurement Methods of Fuel Consumption for Light-duty Vehicles
| Valid |
| GB/T 19233-2008 | English | 719 |
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3 days
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Measurement method of fuel consumption for light-duty vehicle
| Obsolete |
| GB/T 19233-2003 | English | 679 |
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5 days
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Measurement methods of fuel consumption for light-duty vehicles [including MODIFICATION 1]
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Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GB/T 19233-2020
GB/T 19233-2020: Measurement Methods of Fuel Consumption for Light-duty Vehicles---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/GBT19233-2020
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
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.
4 General Requirements
4.1 Before conducting the type test on fuel consumption, the vehicle manufacturer or
its authorized agent shall declare the comprehensive fuel consumption value of the
model being tested.
4.4 The test result of CO2, CO and HC emissions shall be expressed in (g/km). The
value of CO2 shall be rounded off to two decimal places.
4.5 In accordance with the calculation method of Chapter 7, use the measured CO2,
CO and HC emissions, adopt the carbon balance method to calculate fuel consumption.
The calculation result shall be expressed in (L/100 km) and rounded off to two decimal
places.
4.6 The vehicle manufacturer or its authorized agent may take Appendix A, Appendix
B and Appendix C as a reference as needed to measure the fuel consumption of
vehicles in low-temperature environment, high-altitude environment and when the air-
conditioning is on.
5 Test Conditions
5.1 Environmental Requirements and Parameters
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.
5.2.5 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.
5.3.2 When performing the calculation described in 4.5, the value of fuel parameters is
as follows.
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.
Appendix CD1 in GB 18352.6-2016.
6 Measurement of CO2, CO and HC Emissions
6.1 Test Cycle
As described in Appendix CA in GB 18352.6-2016, test cycle includes four parts. low-
speed section (Low), medium-speed section (Medium), high-speed section (High) and
extra high-speed section (Extra High); or, as described in Appendix A of GB/T 38146.1-
2019, includes three parts.
6.2 Road Load Measurement and Dynamometer Setting
In accordance with Appendix CC in GB 18352.6-2016, conduct road load
measurement and dynamometer setting1.
6.3 Pre-test cycle, Pretreatment and Extraction
In accordance with the stipulations of C.1.2.5 ~ C.1.2.7 in GB 18352.6-2016, conduct
pre-test cycle, pretreatment and extraction1 of test vehicle.
6.4 Test Procedures
6.4.1 General requirements
In accordance with the stipulations of C.1.2.8 ~ C.1.2.14 in GB 18352.6-2016, conduct
the test.
6.4.2 Application of transmission
6.5 Emission Calculation
In accordance with the stipulations of Appendix CE in GB 18352.6-2016, calculate CO2,
CO and HC emissions1.
7 Calculation of Fuel Consumption
7.1 Use the HC, CO and CO2 emissions obtained through the method in Chapter 6 to
respectively calculate each speed section and comprehensive fuel consumption.
7.2 Use Formula (1) and Formula (2) to calculate fuel consumption, expressed in
(L/100 km).
7.3 Other than gasoline and diesel-powered vehicles, vehicles of other fuel types may
take Appendix D as a reference to calculate the fuel consumption.
7.4 Correction of the calculated value of fuel consumption in non-type test or non-
conformity test without the usage of reference fuel.
7.5 Type approval value shall be determined in accordance with the following methods.
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.
8.1.2 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.
8.1.3 Run-in
8.1.3.1 The test may be conducted on vehicles without any driving mileage.
8.1.3.2 At the request of the vehicle manufacturer, the test may be performed on
vehicles that have travelled less than 15,000 km. under this circumstance, the running-
in procedure shall be performed by the vehicle manufacturer, but no adjustments can
be made to these vehicles.
8.2 Production Conformity Inspection when Vehicle Manufacturer’s
Statistical Data is Satisfying
8.2.1 When the minimum number of sample vehicles is 3, the stipulations of the
sampling procedure are as follows. when 40% of a batch of products have production
defects, the probability of passing the test is 0.95 (manufacturer’s risk = 5%); when 65%
of a batch of products have production defects, the probability of being accepted is 0.1
(customer’s risk = 10%).
8.3 Production Conformity Inspection when Vehicle Manufacturer’s
Statistical Data is Dissatisfying or Unavailable
8.3.1 When the minimum number of sample vehicles is 3, the stipulations of the
sampling procedure are as follows. when 40% of a batch of products have production
defects, the probability of passing the test is 0.95 (manufacturer’s risk = 5%); when 65%
of a batch of products have production defects, the probability of being accepted is 0.1
(customer’s risk = 10%).
8.3.5 Formula (12) and Formula (13) may be used to calculate the test statistical value.
9 Approval Extension
If only the following items are different in the vehicle characteristics in Appendix E, as
long as the fuel consumption measured and calculated by the inspection institution
exceeds the original vehicle type approval value by no more than 4%, the approval of
fuel consumption of the vehicle may be extended to vehicles of the same type, and
also, other vehicles of other types.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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