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GB/T 18385-2005 (GBT18385-2005)

GB/T 18385-2005_English: PDF (GBT 18385-2005, GBT18385-2005)
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GB/T 18385-2005English145 Add to Cart 0--9 seconds. Auto-delivery Electric vehicles -- Power performance -- Test method Valid GB/T 18385-2005

Standard ID GB/T 18385-2005 (GB/T18385-2005)
Description (Translated English) Electric vehicles - Power performance - Test method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard T47
Classification of International Standard 43.020
Word Count Estimation 15,197
Date of Issue 2005-07-13
Date of Implementation 2006-02-01
Older Standard (superseded by this standard) GB/T 18385-2001
Quoted Standard GB/T 3730.2; GB/T 6326; GB/T 12548; GB 18352.1-2001; GB/T 19596-2004
Adopted Standard ISO 8715-2001, MOD
Drafting Organization China Automotive Technology and Research Center
Administrative Organization National Automotive Standardization Technical Committee
Regulation (derived from) Announcement of Newly Approved National Standards No. 10 of 2005 (No. 84 overall)
Proposing organization National Development and Reform Commission
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China, China National Standardization Administration Committee
Summary This standard specifies the characteristics of pure electric vehicle acceleration, top speed and climbing ability of test methods. This standard applies to pure electric vehicles.

Standards related to: GB/T 18385-2005

GB/T 18385-2005
ICS 43.020
T 47
Replacing GB/T 18385-2001
Electric vehicles - Power performance - Test method
(ISO 8715. 2001 Electric road vehicles –
Road operating characteristics, MOD)
ISSUED ON. JULY 13, 2005
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative References ... 4 
3 Terms and Definitions ... 4 
4 Test Conditions ... 6 
5 Preconditioning of the Vehicle ... 8 
6 Test Sequence ... 9 
7 Test Procedures ... 9 
Annex A ... 15 
Annex B ... 17 
This Standard modifies and adopts ISO 8715.2001 “Electric road vehicles – Road operating
characteristics” (English Version).
Standard format is compiled according to the requirements of GB/T 1.1-2000; the comparison list of
the chapter and article numbers in this Standard and those in ISO 8715. 2001 is listed in Annex B.
In view of actual situation of development of domestic electric vehicles, when referring to ISO 8715.
2001, some amendments were made in this Standard. The relevant technical differences have been
written in the text and simply marked by vertical line at the margin of relevant clauses. The technical
differences and their causes are listed in Annex C for reference.
This Standard will replace GB/T 18385-2001 “Electric vehicles - Power performance - Test method”.
Compared with GB/T 18385-2001, the main changes of this Standard are as follows.
— Change the application scope of standard; change the “apply to electric drive vehicles of which
the total mass of maximum design is not exceed 3500kg” to be “apply to pure electric vehicles”.
Due to extension of application scope, in order to meet the requirements of pure electric
vehicles over 3500kg, some amendments were made in this Standard.
— Change the term and definition of dynamic load radius in Article 3 as per GB/T 6326; directly
use the definition of GB/T 6326.
— Adjust the test record chart.
Annex A, Annex B and Annex C of this Standard are informative.
This Standard was proposed by National Development and Reform Committee.
This Standard shall be under the jurisdiction of National Technical Committee on Road Vehicles of
Standardization Administration of China.
Drafting organization of this Standard. China Automotive Technology and Research Centre.
Main drafter of this Standard. Zhao Jingwei.
This Standard was first-time issued in 2001; this is the first revision.
Electric vehicles - Power performance - Test method
1    Scope 
This Standard specifies the test methods of operating characteristics such as speed, acceleration and
hill climbing ability, etc. for pure electric vehicles.
This Standard is applicable to pure electric vehicles.
2    Normative References 
The articles contained in the following documents have become part of this Standard when they are
quoted herein. For the dated documents so quoted, all the modifications (excluding corrections) or
revisions made thereafter shall not be applicable to this Standard. For the undated documents so
quoted, the latest editions shall be applicable to this Standard.
GB/T 3730.2 Road vehicle – Masses - Vocabulary and codes (idt ISO 1176. 1990)
GB 6326 Tyre terms (GB/T 6326-1994, neq ISO 3877-1. 1978)
GB/T 12548 Motor vehicles - Speedometer and odometer - Calibration method
GB/T 18352.1-2001 Limits and measurement methods for emissions of pollutants from light-duty
vehicles (I)
GB/T 19596-2004 Terminology of electric vehicles (ISO 8713. 2002, NEQ)
3    Terms and Definitions 
For the purpose of this Standard, the following terms and definitions shall apply.
complete electric vehicle kerb mass
Mass of the vehicle, including energy storing device [Definition of in GB/T 19596-2004].
test mass of electric vehicle
The sum of the complete vehicle kerb mass AND the added mass required by the test [Definition of in GB/T 19596-2004]. Added mass is as follow.
a) The maximum authorized loading mass (including driver) if it is equal or less than 180 kg;
4    Test Conditions 
4.1 Vehicle conditions
4.1.1 The vehicle shall be loaded according to the specification for each test.
4.1.2 The vehicle tyres shall be inflated to the pressure specified by the vehicle manufacturer when
the tyres are at ambient temperature.
4.1.3 The viscosity of oils for the mechanical moving parts shall conform to the specification of the
vehicle manufacturer.
4.1.4 The lighting, signalling and auxiliary devices shall be off, except those required for testing and
usual day-time operation of the vehicle.
4.1.5 All energy storage systems available for other than traction purposes (electric, hydraulic,
pneumatic, etc.) shall be charged up to their maximum level as specified by the vehicle manufacturer.
4.1.6 The vehicle shall be clean. For the windows and air entries that are not required by the
operation of the vehicle and the drive system, they shall be closed by the normal operating controls.
4.1.7 If batteries are to be operated at temperatures above ambient temperature, the driver shall
follow the procedure recommended by the vehicle manufacturer to keep the battery1) temperature
within its operating range.
4.1.8 The vehicle shall be driven over at least 300 km, within seven days before the test(s) with those
batteries that are installed in the test vehicle.
4.1.9 The traction battery shall be in charging state as required for the test to be performed.
4.2 Atmospheric conditions
Outdoor test steps shall be performed at an ambient temperature between 5°C ~ 32°C. Indoor test
steps shall be performed at a room temperature between 20°C ~ 30°C. The atmospheric pressure
shall be between 91kPa ~ 104kPa. The average wind speed measured 0.7 m above the ground shall
be less than 3m/s; and the maximum speed of gusts shall be less than 5 m/s. The relative humidity
shall be less than 95%. The tests shall be performed in the absence of rain and fog.
4.3 Test apparatus
4.3.1 In case of measurement of speed and mileage with speedometer and odometer on electric
vehicles, it shall carry out error correction as per GB/T 12548 before testing.
4.3.2 Parameters, units and accuracy of measurements
Table 1 specifies the parameters and their units, accuracy and resolution.
1) If there is special information, the battery in this Standard designates the traction battery for electric vehicles.
b) The variation in altitude shall not exceed 1 m between any two points;
c) The run shall be repeated twice in immediate succession;
d) The components of wind speed parallel to the track shall not exceed 2 m/s.
5    Preconditioning of the Vehicle   
5.1 Battery charge
According to the charge procedure from manufacturer, or the battery shall be charged according to
the following procedure.
5.1.1 Normal overnight charging procedure
The charging of the battery shall be carried out at an ambient temperature between 20°C and 30°C
using the on-board charger, if fitted, or an external charger as recommended by the vehicle
The electrical connection with the public network shall be made with a plug as used for domestic
appliances and as recommended by the vehicle manufacturer.
The procedure excludes all types of special charging, for example battery refreshing or service
The vehicle manufacturer shall be in the position to attest that during the test no special charging has
been performed.
5.1.2 End-of-charge criteria
The end of charge criteria corresponds to a charging time of 12 h except if a clear indication is given
to the driver by the standard instrumentation that the battery is not yet fully charged. In this case, the
maximum charging time shall be.
3 x manufacturer’s specified battery capacity in kilowatt hours (kWh) / mains power supply in
kilowatts (kW).
5.1.3 Fully charged battery
A battery is fully charged when charged according to the overnight charging procedure and the end of
charge criteria.
5.2 Trip meter setting
The on-board trip meter shall be set to zero, or the reading of the odometer shall be recorded.
5.3 Warm-up
The vehicle shall be driven over a distance of about 5000 m at 80% of the manufacturer’s estimated
maximum 30-minutes speed in order to warm up the motor and transmission gears.
6    Test Sequence   
The test sequence is arranged such that all road performances can be performed within two days. It
shall be performed according to the following sequences.
First day.
preconditioning (see clause 5);
test. maximum 30-minutes speed (see ...