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GB/T 18385-2005 English PDF (GBT18385-2005)

GB/T 18385-2005 English PDF (GBT18385-2005)

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GB/T 18385-2005: Electric vehicles -- Power performance -- Test method

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.
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 Republic of China;
Standardization Administration of the PEOPLE 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. 3.1
complete electric vehicle kerb mass
Mass of the vehicle, including energy storing device [Definition of in GB/T 19596-2004]. 3.2
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 manufacturer.
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 charging.
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 ...

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