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This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
This document replaces GB/T 19753-2013 Test methods for energy consumption of light-duty hybrid electric vehicles. In addition to structural adjustment and editorial changes, the following main technical changes have been made compared with GB/T 19753-2013:
a) the terms and definitions of full-electric range, charge-depleting actual range, charge-depleting cycle range and equivalent full-electric range are added (see Clause 3);
b) the requirements for environment, test fuel, test vehicle and test equipment are modified (see Clause 4; Clause 5 of Edition 2013);
c) the test cycle is modified as follows: the test cycle is changed from NEDC to WLTC and CLTC, and the correction method of test cycle is added at the same time (see 4.5; 7.1.2, 7.1.3, 7.2.3, 7.2.4, 7.3.2, 7.3.3 and Annex B of Edition 2013);
d) the requirements for test related parameters and precision are added (see Clause 5);
e) the requirements for road load measurement, dynamometer setting and test procedures are modified (see Clause 6; Clause 7 of Edition 2013);
f) the validity judgment criterion for the charge-sustaining mode test is added (see 6.1.2.2);
g) the calculation method of test result is modified, and the weighted calculation method of pure electricity utilization factor UF based on the actual road statistics in China is introduced (see 7.1~7.2; 7.1.4, 7.2.5 and 7.3.4 of Edition 2013);
h) the requirement of type approval value is added (see 7.3);
i) the requirement of test family is added (see Clause 8);
j) the requirement of production conformity is added (see Clause 9);
k) the method for determining REESS correction coefficient Kfuel in the charge-sustaining mode test is modified (see Annex A; 7.3.4.2 of Edition 2013);
l) the pretreatment, vehicle sock and REESS charging are modified (see Annex C; Annex A of Edition 2013);
m) the selection of driving mode is modified (see Annex D; 7.2.2 of Edition 2013);
n) the test methods of REESS current and voltage are added (see Annex E);
o) the calculation method of pure electricity utilization factor UF of OVC-HEV is added (see Annex F);
p) the calculation method of converting charge consumption into fuel consumption is added, thus obtaining the converted fuel consumption of vehicles (see Annex G).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
This document was issued in 2005 as first edition, its first revision was issued in 2013, and this is the second revision.
Test methods for energy consumption of light-duty hybrid electric vehicles
1 Scope
This document specifies the test methods for energy consumption of light-duty hybrid electric vehicles equipped with ignition engines or compression ignition engines.
This document is applicable to vehicles of category N1 equipped with ignition engines or compression ignition engines and vehicles of category M1 and category M2 with the maximum design total mass not exceeding 3,500kg. Vehicles of category M1 having a maximum design mass exceeding 3,500kg may implement by reference.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 15089 Classification of power-driven vehicles and trailers
GB 18352.6-2016 Limits and measurement methods for emissions from light-duty vehicles
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
For the purposes of this document, the terms and definitions given in GB/T 15089, GB/T 19596, GB 18352.6-2016, GB/T 38146.1-2019 as well as the following apply.
3.1
all-electric range
AER
distance that the vehicle travels from the start of the power consumption mode test to the start of the engine, the upper limit of this distance is the charge-depleting actual range
3.2
charge-depleting actual range
RCDA
distance that the vehicle travels from the start of the power consumption mode test until the power of REESS is balanced after several continuous test cycles
3.3
charge-depleting cycle range
RCDC
distance that the vehicle travels at the end of transition cycle, from the start of the power consumption mode test until reaching the termination judgment condition specified by 6.2.2.5
3.4
equivalent all-electric range
EAER
part of charge-depleting cycle range that completely replies on electric power
4 Test conditions
4.1 Environmental requirements and parameters
Environmental requirements and parameters shall meet the requirements specified GB 18352.6-2016, C.1.2.2.
4.2 Test equipment
4.2.1 Test equipment shall meet the requirements of GB 18352.6-2016, Annexes CD.
4.2.2 See Table 1 for requirements of other relevant parameters.
Table 1 Unit, accuracy and resolution of relevant parameters
Parameter Unit Accuracy Resolution
Electric energy a Wh ±1% 1
Current A ±0.3% FSD or ±1%b, c of reading 0.1
Voltage V ±0.3% FSD or ±1%b of reading 0.1
a Equipment: static reading meter capable of detecting dynamic changes.
b Whichever is greater.
c Current integration frequency is 20Hz or larger.
4.3 Test fuel
In the type test, the reference fuel meeting the requirements of Annex K of GB 18352.6-2016 shall be adopted according to the lowest label recommended by automobile manufacturers, and no additional oxygenates shall be added to the fuel. In case of using the fuel types not specified in Annex K of GB 18352.6-2016, commercial vehicle fuel complying with relevant standards shall be used.
Foreword i
1 Scope
2 Normative References
3 Terms and definitions
4 Test conditions
4.1 Environmental requirements and parameters
4.2 Test equipment
4.3 Test fuel
4.4 Test vehicle
4.5 Test cycle
5 Test related parameters and precision
6 Test procedures
6.1 Test requirements
6.2 Test flow
6.3 OVC-HEV test procedures
6.4 NOVC-HEV test procedures
7 Test results
7.1 OVC-HEV test results
7.2 NOVC-HEV test result
7.3 Determination of type approval value
8 Interpolation method of a certain vehicle
8.1 Interpolation conditions
8.2 Energy demand of vehicles in a certain speed range
8.3 Interpolation coefficient of a certain speed range
8.4 Calculation of OVC-HEV test result with interpolation method
8.5 Calculation of NOVC-HEV test result with interpolation method
8.6 Road load family and road load matrix family
9 Production conformity
9.1 General
9.2 Production conformity assurance plan
9.3 OVC-HEV production conformity
9.4 NOVC-HEV production conformity
Annex A (Normative) Correction procedures based on REESS electric energy variation
Annex B (Informative) Curve for REESS state of charge
Annex C (normative) Pretreatment, vehicle soak and REESS charging
Annex D (Normative) Selection of driving mode
Annex E (Normative) Determination of REESS current and voltage
Annex F (Normative) OVC-HEV utilization factor (UF)
Annex G (Informative) Converted fuel consumption
Bibliography
