Chinese Standard: 'GB/T 373402019'
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Conversion methods for energy consumption of electric vehicles
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Standard ID  GB/T 373402019 (GB/T373402019)  Description (Translated English)  Conversion methods for energy consumption of electric vehicles  Sector / Industry  National Standard (Recommended)  Classification of Chinese Standard  T47  Classification of International Standard  43.020  Word Count Estimation  10,157  Date of Issue  20190325  Date of Implementation  20191001  Drafting Organization  China Automotive Technology Research Center Co., Ltd.  Administrative Organization  National Automotive Standardization Technical Committee (SAC/TC 114)  Regulation (derived from)  National Standard Announcement No. 3 of 2019  Proposing organization  Ministry of Industry and Information Technology of the People's Republic of China  Issuing agency(ies)  State Administration of Markets and China National Standardization Administration 
GB/T 373402019
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.020
T 47
Conversion methods for energy
consumption of electric vehicles
电动汽车能耗折算方法
ISSUED ON: MARCH 25, 2019
IMPLEMENTED ON: OCTOBER 01, 2019
Issued by: State Administration for Market Regulation;
Standardization Administration of the PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Terms and definitions ... 4
4 Calculation and determination of electric energy consumption of vehicle types
... 5
5 Heat value conversion method ... 6
6 CO2 emission conversion method ... 7
Appendix A (Informative) Numerical reference value and example of formula
calculation parameters ... 9
Bibliography ... 11
Conversion methods for energy
consumption of electric vehicles
1 Scope
This Standard provides the methods for converting electric vehicles’ electric
energy consumption equivalent into fuel consumption.
This Standard applies to pure electric vehicles and plugin hybrid electric
vehicles.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GB/T 18386 Electric vehicles  Energy consumption and range  Test
procedures
GB/T 19233 Measurement methods of fuel consumption for lightduty
vehicles
GB/T 19596 Terminology of electric vehicles
GB/T 19753 Test Methods for Energy Consumption of Lightduty Hybrid
Electric Vehicles
GB/T 19754 Test methods for energy consumption of heavyduty hybrid
electric vehicles
3 Terms and definitions
The terms and definitions as defined in GB/T 19596 and the following apply to
this document.
3.1 Fuel energy factor
The fuel volume which generates the same heat value (1 kW • h=3600 kJ) as
the unit electric quantity, calculated by GB/T 2589, GB 17930, GB 19147, in
consumption shall be converted into equivalent gasoline/diesel consumption.
For a pure electric vehicle, its electric energy consumption shall be converted
into equivalent gasoline/diesel consumption. See Appendix A for the
parameters used in the above calculations.
5 Heat value conversion method
5.1 Simple conversion method
According to formula (1), the equivalent fuel consumption (FC) of electric
energy is calculated:
Where:
FC  Equivalent fuel consumption, in liters per 100 kilometers (L/100 km). The
calculation result is rounded off to two decimal places;
E  The electric energy consumption of vehicle, in kilowatthours per 100
kilometers (kW • h/100 km). It is measured according to GB/T 18386, GB/T
19233, GB/T 19753, GB/T 19754. Its value is rounded off to two decimal
places;
FE  The energy factor of fuel, in liters per kilowatthour [L/(kW • h)]. The value
is rounded off to four decimal places.
5.2 Fuel life cycle conversion method
5.2.1 Calculation of equivalent fuel consumption (FCe)
According to formula (2), the equivalent fuel consumption (FCe) is calculated:
Where:
FCe  Equivalent fuel consumption, in liters per 100 kilometers (L/100 km). The
calculation result is rounded off to two decimal places;
E  The electric energy consumption of vehicle, in kilowatthours per 100
kilometers (kW • h/100 km). It is measured according to GB/T 18386, GB/T
19233, GB/T 19753, GB/T 19754. Its value is rounded off to two decimal
places;
FE  The energy factor of fuel, in liters per kilowatthour [L/(kW • h)]. The value
The calculation result is rounded off to two decimal places;
E  The electric energy consumption of vehicle, in kilowatthours per 100
kilometers (kW • h/100 km). It is measured according to GB/T 18386, GB/T
19233, GB/T 19753, GB/T 19754. Its value is rounded off to two decimal
places;
FCO2  CO2 conversion factor, in liters per kilowatthour [L/(kW • h)]. According
to formula (5), it is calculated. The value is rounded off to two decimal
places.
6.2 Calculation of CO2 conversion factor (FCO2)
According to formula (5), the CO2 conversion factor (FCO2) is calculated:
Where:
FCO2  CO2 conversion factor, in liters per kilowatthour [L/(kW • h)]. The value
is rounded off to two decimal places;
TE  Standard coal consumption of thermal power supply, in kilograms per
kilowatthour [kg/(kW • h)]. The value is rounded off to three decimal
pl......
