GB/T 19753-2021 English PDF (GBT19753-2021)

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GB/T 19753-2021: Test methods for energy consumption of light-duty hybrid electric vehicles
GB/T 19753-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
CCS T 47
Replacing GB/T 19753-2013
Test Methods for Energy Consumption of Light-duty
Hybrid Electric Vehicles
ISSUED ON: MARCH 9, 2021
IMPLEMENTED ON: OCTOBER 1, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 4 
1 Scope ... 6 
2 Normative References ... 6 
3 Terms and Definitions ... 6 
4 Test Conditions ... 7 
4.1 Environmental Requirements and Parameters ... 7 
4.2 Test Equipment ... 7 
4.3 Test Fuels ... 8 
4.4 Test Vehicles ... 8 
4.5 Test Cycle ... 8 
5 Test-related Parameters and Precisions ... 9 
6 Test Procedures ... 9 
6.1 Test Requirements ... 9 
6.2 Test Procedures ... 11 
6.3 OVC-HEV Test Procedures ... 16 
6.4 NOVC-HEV Test Procedures ... 17 
7 Test Results ... 17 
7.1 OVC-HEV Test Results ... 17 
7.2 NOVC-HEV Test Results ... 27 
7.3 Determination of Type Approval Value ... 27 
8 Interpolation Method of a Certain Vehicle ... 31 
8.1 Interpolation Conditions ... 31 
8.2 Energy Demand for Vehicles in a Certain Speed Section ... 35 
8.3 Interpolation Coefficient of a Certain Speed Section ... 35 
8.4 OVC-HEV Test Results Calculated through Interpolation Method ... 35 
8.5 NOVC-HEV Test Results Calculated through Interpolation Method ... 38 
8.6 Road Load Lineage and Road Load Matrix Lineage ... 39 
9 Conformity of Production ... 39 
9.1 General Rules ... 39 
9.2 Production Conformity Assurance Scheme ... 39 
9.3 OVC-HEV Production Conformity ... 41 
9.4 NOVC-HEV Production Conformity ... 42 
Appendix A (normative) Correction Program Based on REESS Electrical
Energy Changes ... 43 
Appendix B (informative) REESS Charging State Curve ... 50 
Appendix C (normative) Pre-treatment, Vehicle Immersion and REESS
Charging ... 53 
Appendix D (normative) Selection of Driving Mode ... 55 
Appendix E (normative) Determination of REESS Current and Voltage ... 61 
Appendix F (normative) OVC-HEV Pure Electricity Utilization Factor (UF) ... 63 
Appendix G (informative) Converted Fuel Consumption ... 65 
Bibliography ... 67 
Test Methods for Energy Consumption of Light-duty
Hybrid Electric Vehicles
1 Scope
This Standard stipulates the test methods for energy consumption of light-duty hybrid
electric vehicles equipped with ignition engine or compression ignition engine.
This Standard is applicable to Category-N1 vehicles equipped with ignition engine or
compression ignition engine, and Category-M1 and Category-M2 vehicles with a
maximum design total mass of not more than 3,500 kg. Category-M1 vehicles with a
maximum design total mass of more than 3,500 kg may take this as a reference.
2 Normative References
The contents of the following documents constitute the indispensable clauses of this
document through the normative references in 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 15089 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 19233-2020 Measurement Methods of Fuel Consumption for Light-duty Vehicles
GB/T 19596 Terminology of Electric Vehicles
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, GB/T 19596, GB 18352.6-2016 and GB/T 38146.1-
2019, and the following terms and definitions are applicable to this document.
3.1 All-electric Range
AER
All-electric range refers to the distance traveled by the vehicle from the start of the
charge-depleting mode test to the start of the engine; the upper limit of the distance is
report or other relevant information shall be provided, and determined by the inspection
institution.
6.1.1.2 The start-up of the power system shall be carried out in accordance with the
stipulations of the vehicle manufacturer.
6.1.1.3 The vehicle shall be tested in accordance with the test cycle specified in 4.5.
6.1.1.4 Vehicles equipped with a manual gear shall be driven in accordance with the
requirements of the manual for mass-produced vehicles provided by the vehicle
manufacturer, and the driver’s assistant shall prompt the gear-shifting time.
6.1.1.5 The vehicle speed shall be properly controlled, so as to accurately track the
test cycle curve. The speed tolerance of each test cycle shall satisfy the requirements
of C.1.2.6.6 of GB 18352.6-2016.
6.1.1.6 When REESS operating temperature is higher than the normal range, the test
personnel shall follow the procedures recommended by the vehicle manufacturer to
restore the temperature of REESS to the normal range. The vehicle manufacturer shall
submit proof that REESS’s thermal management system has not failed or attenuated.
6.1.1.7 Before the start or at the beginning of the test, CO2, CO and HC emission
sampling and electricity consumption test shall be carried out. After the test, the
emission sampling shall be stopped. The emission sampling shall be conducted in
accordance with the relevant stipulations of C.1.2.9 and C.1.2.12 ~ C.1.2.14 in GB
18352.6-2016.
6.1.1.8 The emission sampling and analysis shall be performed on each speed section.
If the internal combustion engine does not start in a certain speed section, then, the
analysis of emissions in this speed section may not be performed.
6.1.1.9 Special requirements for test results. If the test cycle is corrected in accordance
with CA.5 in GB 18352.6-2016, then, the maximum speed of the vehicle shall be stated
in the test report.
6.1.2 Special requirements for charge-sustaining mode test of off-vehicle
charging hybrid electric vehicle (OVC-HEV) and test of non-off-vehicle charging
hybrid electric vehicle (NOVC-HEV)
6.1.2.1 It is applicable to the forced cooling specified in C.1.2.7.2 of GB 18352.6-2016.
6.1.2.2 Test validity determination. If EREESS,CS calculated in accordance with A.1.3 of
Appendix A is negative (namely, REESS is in discharge), and the cycle correction
criterion c is greater than 0.01, then, the test result is invalid.
6.1.3 Test requirements under special environmental conditions
The vehicle manufacturer and its authorized agent may take the environmental settings
6.2.2.2.1 Vehicle immersion and REESS charging shall respectively be performed in
accordance with the stipulations of C.2.2 and C.2.3.
6.2.2.2.2 Selection of driving mode.
In terms of vehicles equipped with a driving mode selection function, in accordance
with D.2 of Appendix D, select the driving mode of the charge-depleting mode test.
6.2.2.3 Test procedures of charge-depleting mode test
6.2.2.3.1 The vehicle shall be tested in accordance with the stipulations of C.1.2.8.1 ~
C.1.2.8.3.1 and C.1.2.8.5 of GB 18352.6-2016.
6.2.2.3.2 The test procedures of charge-depleting mode test shall include multiple
continuous test cycles; the vehicle immersion time between the cycles shall be less
than 30 min. Repeat the test cycles, until the determination conditions of termination
specified in 6.2.2.5 are reached.
6.2.2.3.3 During vehicle immersion, the power transmission system shall be turned off,
and REESS shall ...