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GB 19578-2021 English PDF (GB19578-2021)

GB 19578-2021 English PDF (GB19578-2021)

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GB 19578-2021: Fuel consumption limits for passenger cars

This document specifies the fuel consumption limits for passenger cars, the application for type certification, the measurement of fuel consumption, the determination and recording of type certification values, the production consistency, the changes and certification extensions, and the implementation date. This document applies to M1 vehicles that can burn gasoline or diesel fuel and whose maximum design total mass does not exceed 3 500 kg.
GB 19578-2021
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 43.020
CCS T 40
Replacing GB 19578-2014
Fuel consumption limits for passenger cars
ISSUED ON: FEBRUARY 20, 2021
IMPLEMENTED ON: JULY 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the PEOPLE Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Application for type certification ... 5
5 Determination of fuel consumption ... 5
6 Determination and recording of type certification values ... 5
7 Fuel consumption limits ... 6
8 Production consistency ... 7
9 Changes and certification extensions ... 7
10 Implementation date ... 8
Appendix A (Normative) Description of engine system characteristics ... 9 Appendix B (Normative) Fuel consumption type certification report/fuel
consumption type certification application report2 ... 15
Fuel consumption limits for passenger cars
1 Scope
This document specifies the fuel consumption limits for passenger cars, the application for type certification, the measurement of fuel consumption, the determination and recording of type certification values, the production consistency, the changes and certification extensions, and the implementation date.
This document applies to M1 vehicles that can burn gasoline or diesel fuel and whose maximum design total mass does not exceed 3 500 kg.
This document does not apply to vehicles that only use gas fuels or alcohol- ether fuels.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document.
GB/T 15089-2001, Classification of power-driven vehicles and trailers
GB/T 19233, Measurement methods of fuel consumption for light-duty
vehicles
GB/T 19596, Terminology of electric vehicles
GB/T 19753, Test methods for energy consumption of light-duty hybrid
electric vehicles
3 Terms and definitions
Terms and definitions determined by GB/T 19596 are applicable to this
document.
4 Application for type certification
4.1 The application for type certification of a certain model or series of fuel consumption shall be submitted by the manufacturer or its legal representative. 4.2 The following documents and detailed information shall be attached to the application (if there is a schematic diagram, the details shall be fully explained in an appropriate proportion):
a) Description of engine system characteristics that are specified in Appendix A;
b) The fuel consumption type certification application report that is specified in Appendix B, where the content of B.8 shall not be filled.
4.3 A sample car that represents the certified model or series shall be submitted to the testing agency responsible for the type certification test.
5 Measurement of fuel consumption
The fuel consumption of gasoline, diesel, bi-fuel and dual-fuel vehicles shall be measured in accordance with GB/T 19233, by using the Worldwide harmonized Light vehicles Test Cycle (WLTC). The fuel consumption of externally
rechargeable and non-externally rechargeable hybrid electric vehicles shall be measured in accordance with GB/T 19753, by using the Worldwide harmonized Light vehicles Test Cycle (WLTC).
6 Determination and recording of type certification
values
6.1 The testing agency responsible for the type certification test shall determine the fuel consumption type certification value (comprehensive fuel consumption) of gasoline, diesel, bi-fuel and dual-fuel vehicles in accordance with GB/T 19233, and determine the fuel consumption type certification value
(comprehensive fuel consumption) of externally rechargeable and non-
externally rechargeable hybrid electric vehicles in accordance with GB/T 19753. 6.2 Compare the comprehensive fuel consumption type certification values that are determined in 6.1 with the corresponding limits in Formula (1) ~ Formula (6); record the type certification values and the comparison results in the fuel consumption type certification report that is specified in Appendix B.
A.2.3.1 Fuel injection type (only compression ignition type): Yes/No2
A.2.3.1.1 System description: _____________________________________
A.2.3.1.2 Working principle: direct injection/pre-combustion chamber/vortex combustion chamber2
A.2.3.1.3 Fuel injection pump
A.2.3.1.3.1 Brand: ________________________
A.2.3.1.3.2 Model: ________________________
A.2.3.1.3.3 Maximum oil supply:2,5 _______ mm3/stroke, or when the pump speed is ______ r/min, ______ mm3/cycle, or expressed by oil
supply/characteristic curve: _______________________________________
A.2.3.1.3.4 Injection timing5: ______________________________________
A.2.3.1.3.5 Fuel injection advance curve5: ___________________________
A.2.3.1.3.6 Calibration procedure: test bench/engine2
A.2.3.1.4 Governor
A.2.3.1.4.1 Model: ___________________________
A.2.3.1.4.2 Fuel cut-off point
a) Load fuel cut-off point: ___________________ r/min
b) No-load fuel cut-off point: _________________ r/min
A.2.3.1.5 Fuel injector
A.2.3.1.5.1 Brand: ____________________________
A.2.3.1.5.2 Model: ____________________________
A.2.3.1.5.3 Opening pressure5: ______ kPa or characteristic curve5: ________ A.2.3.1.6 Cold starting system
A.2.3.1.6.1 Brand: ____________________________
A.2.3.1.6.2 Model: ____________________________
A.2.3.1.6.3 Note: ________________________________________________
A.2.3.1.7 Auxiliary starter

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