GB/T 19754-2015 English PDF (GBT19754-2015)

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GB/T 19754-2015: Test methods for energy consumption of heavy-duty hybrid electric vehicles
GB/T 19754-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 04
Replacing GB/T 19754-2005
Test methods for energy consumption
of heavy-duty hybrid electric vehicles
ISSUED ON. MAY 15, 2015
IMPLEMENTED ON. OCTOBER 1, 2015
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the PRC;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 4 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Calculation method of net energy change (NEC) ... 7 
4.1 Calculation theory of NEC ... 7 
4.2 NEC calculation ... 7 
4.3 Determination of NEC relative variation ... 9 
5 Test cycle ... 11 
5.1 Requirements for test cycle ... 11 
5.2 Duration of test cycle ... 11 
6 Test preparation ... 12 
6.1 Test conditions ... 12 
6.2 Pre-collection of vehicle data ... 12 
6.3 Vehicle conditions ... 12 
6.4 Preset of energy storing device ... 14 
6.5 Technical conditions of chassis dynamometer ... 15 
6.6 Test instruments ... 17 
7 Test procedures ... 18 
7.1 Start and restart of vehicle propulsion system ... 18 
7.2 Pre-run ... 18 
7.3 Test procedures for non-externally chargeable hybrid electric vehicles ... 18 
7.4 Test procedures for externally chargeable hybrid electric vehicles ... 19 
8 Data records and results ... 23 
8.1 Environmental data ... 23 
8.2 Fuel density ... 23 
8.3 SOC, power battery voltage, super capacitor voltage, and NEC ... 23 
8.4 Driving distance ... 23 
8.5 Fuel consumption ... 23 
8.6 Net energy change (NEC) of energy storing device ... 23 
8.7 Energy consumption ... 23 
8.8 Test validity ... 27 
9 Final test report ... 27 
Appendix A (Normative) Example OF determination procedure of NEC relative
variation AND SOC correction procedure ... 28 
Appendix B (Normative) Data of typical urban bus cycle in China ... 31 
Appendix C (Informative) Driving cycle data recommended by fuel economy
test of the US hybrid heavy-duty vehicle ... 40 
Appendix D (Informative) Descriptions of driving cycles recommended by fuel
economy test of the US heavy-duty hybrid electric vehicle ... 106 
Appendix E (Informative) Form of parameters of test sample vehicle ... 110 
Bibliography ... 114 
Foreword
This Standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This Standard replaces GB/T 19754-2005 “Test methods for energy
consumption of heavy-duty hybrid electric vehicles”. As compared with GB/T
19754-2005, in addition to editorial changes, the main technical changes are
as follows.
- ADD measurement and evaluation methods for energy consumption of non-
externally chargeable hybrid electric vehicles;
- Major changes in the method of converting electricity consumption and fuel
consumption;
- Major changes in the calculation method of NEC, and ADD the calculation
method for NEC of super capacitor;
- The test cycle has changed. ADD the C-WTVC driving cycle in GB/T 27840-
2011 as the test cycle for hybrid commercial vehicles and the urban bus
cycle (expressway) in QC/T 759-2006;
- Significant changes in the test procedures and result evaluation.
This Standard was proposed by Ministry of Industry and Information Technology
of the PRC.
This Standard shall be under the jurisdiction of National Technical Committee
of Auto Standardization (SAC/TC 114).
Drafting organizations of this Standard. Dongfeng Motor Corporation, China
Automotive Technology and Research Center Co., Ltd., Technical Center of
China FAW Group Co., Ltd., Hunan CRRC Times Electric Vehicle Co., Ltd..
Main drafters of this Standard. Li Zheng, Yang Xiaolun, Xin Jixin, Duan
Shengbo, Xu Pingxing, Deng Yuanfa, She Jianqiang, Peng Hongtao, Zhang
Chunlong, Qin Kongjian, He Yuntang, Zhang Yingnan, Yang Fang, Guo Shuying.
The previous versions of the standard replaced by this Standard were released
as follows.
- GB/T 19754-2005.
Test methods for energy consumption
of heavy-duty hybrid electric vehicles
1 Scope
This Standard specifies the methods for energy consumption test of heavy-duty
hybrid electric vehicles on chassis dynamometers or roads.
This Standard applies to hybrid electric vehicles with a maximum total mass of
more than 3500 kg.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are
applicable to this document. For the undated references, the latest version
(including all the amendments) are applicable to this document.
GB/T 12534 Motor vehicles - General rules of road test method
GB 18352.3-2005 Limits and measurement methods for emissions from
light-duty vehicles (III, IV)
GB/T 18386 Electric vehicles - Energy consumption and range - Test
procedures
GB/T 19596 Terminology of electric vehicles
GB/T 19753 Test Methods for Energy Consumption of Light-duty Hybrid
Electric Vehicles
GB/T 27840-2011 Fuel consumption test methods for heavy-duty commercial
vehicles
QC/T 741 Ultra-capacitor for Electric Vehicles
QC/T 759-2006 City Driving Cycle for Vehicle Testing
QC/T 837 Types of hybrid electric vehicles
3 Terms and definitions
The terms and definitions defined in GB/T 19596, QC/T 741, QC/T 837, GB/T
19753, and GB/T 27840 and the following are applicable to this document.
3.1 Super capacitor state of charge; SOC
The difference BETWEEN the squared value of the capacitor voltage based on
actual measurement AND the squared value of allowed lower limit voltage of
capacitor specified by the manufacturer (Uact2-Umin2), which is expressed as a
percentage of the difference BETWEEN the squared value of the maximum
nominal voltage of capacitor AND the squared value of allowed lower limit
voltage of capacitor specified by the manufacturer (Umax2-Umin2).
3.2 Net energy change; NEC
The net change in energy of energy storing device.
Note. The unit is kilowatt-hour (kW · h).
3.3 Propulsion energy
The energy obtained from the fuel consumed by the vehicle and/or energy
storing device for driving the vehicle. If the energy is only supplied to the vehicle
accessories (such as 12 V/24 V auxiliary batteries in conventional vehicles), it
shall not be treated as propulsion energy.
3.4 Propulsion system
The system which can provide the propulsion force to the vehicle based on the
driver’s operating instructions after the vehicle is started.
3.5 Regenerative braking
The system which converts or partially converts the kinetic energy and potential
energy of a vehicle during its running to the energy stored in the energy storing
device when the vehicle slows down or goes downhill.
3.6 Total fuel energy
The total fuel energy calculated based on the low calorific value of the fuel.
Note. The unit is kilowatt-hour (kW · h).
Uend - The voltage of super capacitor bus at the end of the test cycle, in volts
(V);
Ustart - The voltage of super capacitor bus at the start of the test cycle, in volts
(V).
4.3 Determination of NEC relative variation
4.3.1 Total cycle propulsion energy
4.3.1.1 Calculation method of total cycle propulsion energy
This Standard uses the total cycle propulsion energy instead of the total fuel
propulsion energy to determine the relative variation of NEC; because for the
same test cycle, the total cycle propulsion energy does not change substantially.
However, th...