GB/T 24157-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 24157-2017 | English | 270 |
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Test methods of range and indication for the state of charge for electric motorcycles and electric mopeds
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| GB/T 24157-2009 | English | 479 |
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Electric motorcycles and electric mopeds -- Energy consumption and range -- Test procedures
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GB/T 24157-2017: Test methods of range and indication for the state of charge for electric motorcycles and electric mopeds
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT24157-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.140
T 80
Replacing GB/T 24157-2009
Test Methods of Range and Indication for the State of
Charge for Electric Motorcycles and Electric Mopeds
Issued on. DECEMBER 29, 2017
Implemented on. JULY 1, 2018
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 China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 Test Conditions... 6
5 Test Methods... 7
Appendix A (informative) Reference Illustrations of Typical Styles of Indication for the
State of Charge... 12
Appendix B (informative) Test Record Form... 13
Appendix C (normative) Operating Cycle and Chassis Dynamometer Setting... 14
Foreword
This Standard was drafted in accordance with the rules provided in GB/T 1.1-2009.
This Standard serves as a replacement of GB/T 24157-2009 Electric Motorcycles and Electric
Mopeds - Energy Consumption and Range - Test Procedures.
In comparison with GB/T 24157-2009, the main revision is as follows.
---The relevant definition and test method of “indication for the state of charge” are added;
---The condition of test termination is modified from “accumulation of over 4 s” into
“continues for over 4 s”;
---The test speed and time tolerance are modified;
---The calculation method of test results is modified, and the conversion of equivalent
driving range and equivalent energy consumption is canceled and modified into
separate recordings of the results of two test conditions;
---The state of cyclic operation of electric mopeds is modified.
This Standard was proposed by the Ministry of Industry and Information Technology of the
People’s Republic of China.
This Standard shall be under the jurisdiction of National Technical Committee on Auto of
Standardization Administration of China (SAC/TC 114).
The main drafting organizations of this Standard. Shanghai Motor Vehicle Inspection Center;
National Motorcycle Quality Supervision and Inspection Center (Tianjin); National Motorcycle
Quality Supervision and Inspection Center; Wuyang - Honda Motorcycle (Guangzhou) Co.,
Ltd.; Chongqing Shineray Motor Co., Ltd.; Jiangsu Jinpeng Vehicle Industry Co., Ltd.; Jiangsu
Xinri E-Vehicle Co., Ltd.; China Quality Certification Center; SUNDIRO Honda Motorcycle
Co., Ltd.; Changzhou Haojue Electric Vehicle Co., Ltd.; Chongqing Southern Motorcycle
Technology R&D Co., Ltd.; Jiangsu Linhai Powder Machinery Group Co., Ltd.; National
Motor Vehicle Quality Supervision and Inspection Center; Jinan Qingqi Motorcycle Co., Ltd.
The main drafters of this Standard. Li Jiaqing, Tong Xiaomin, Wang Qing, Gong Jianjun, Li
Yidong, Xu Jian, Lu Shimin, Jia Donger, Xie Penghong, Li Dawei, Liu Ping, Pang Xu, Wang
Sheng, Dai Lei, Huang Zhiqiang, Cao Xincheng.
The issuing of the previous versions.
---GB/T 24157-2009.
Test Methods of Range and Indication for the State of
Charge for Electric Motorcycles and Electric Mopeds
1 Scope
This Standard specifies the test methods of range, energy consumption and indication for the
state of charge for electric motorcycles and electric mopeds.
This Standard is applicable to electric motorcycles and electric mopeds that use energy storage
battery as the only power source. The pure electric drive mode of hybrid motorcycles may take
this Standard as a reference.
2 Normative References
The following documents are indispensable to the application of this document. In terms of
references with a specified date, only versions with a specified date are applicable to this
document. In terms of references without a specified date, the latest version (including all the
modifications) is applicable to this document.
GB/T 5359.1 Term for Motorcycles and Mopeds - Part 1.Types of Vehicles
GB/T 5378 Methods of Road Test for Motorcycles and Mopeds
GB 14622 Limits and Measurement Methods for Emissions from Motorcycles (China IV)
GB 18176 Limits and Measurement Methods for Emissions of Pollutants from Mopeds (China
IV)
GB/T 18385-2005 Electric Vehicles - Power Performance - Test Method
GB/T 19596 Terminology of Electric Vehicles
3 Terms and Definitions
What is defined in GB/T 19596, GB/T 5359.1 and GB/T 24158, and the following terms and
definitions are applicable to this document.
3.1 mass of test vehicle
The sum of the complete vehicle kerb mass and the loading mass required for testing. The
loading mass is (75 5) kg, including the driver and test equipment. The mass of test vehicle
shall include the mass of the power storage battery.
3.4 state of charge
After the power storage battery is discharged, the ratio of the remaining capacity to the rated
capacity, which is usually expressed as a percentage.
3.5 indication for the state of charge
The remaining power is displayed for viewing in the form of pointers, indicator lights, figures
and data bars, etc. Please refer to Appendix A for the typical style of indication for the state of
charge.
3.6 warning for the state of charge
When the remaining power is lower than the warning value, a warning will be given with
acoustic and optical signals as a prompt to charge as soon as possible.
4 Test Conditions
4.1 Conditions of Test Vehicle
4.1.1 The test vehicle shall be equipped with a device for the indication for the state of charge
and a device for the warning for the state of charge, and comply with the stipulations of GB
24155.
4.1.6 Tyre pressure shall comply with the stipulations of the product instruction manual.
4.1.7 Except for necessary equipment and daily operating parts of the vehicle, the lighting,
signaling devices and auxiliary devices of the test vehicle shall be turned off.
4.2 Conditions of Test Road
4.2.1 The test road shall be an asphalt or concrete road, and the road surface shall be flat, dry
and clean. If it is a circular road, then, the turning radius shall be not less than 50 m.
4.2.2 The test road section shall be kept level, with a longitudinal slope not exceeding 1%. In
addition, the height difference between any two points within the entire length is not allowed
to exceed 1 m, and the transverse slope is not allowed to exceed 3%.
4.3 Resolution and Accuracy of Test Instrument
The resolution and accuracy of the test instrument are shown in Table 1.
4.4 Conditions of Test Environment
The test environment shall comply with the following stipulations.
4.5 Requirements for Driving
The driver needs to drive the vehicle in accordance with the relevant requirements of GB/T
5378.During the test, the riding posture shall remain as unchanged as possible.
5 Test Methods
5.1 Test Procedures
The range, energy consumption and indication for the state of charge are simultaneously
determined in one test. The test procedures are as follows.
5.4 Road Test Load and Chassis Dynamometer Setting
When testing on the road, the load shall comply with the stipulations of 4.1.5.
When testing on the chassis dynamometer, in accordance with the stipulations of Appendix C,
set the equivalent inertia of the chassis dynamometer and vehicle road simulated resistance.
5.5 Test Speed and Time Tolerances
The instant speed error and time error of the test shall be within the tolerance range provided in
Figure 1.The speed tolerance of each point in the Figure is 1 km/h, and the time tolerance is
5.6 Test Process
5.6.1 Scope measurement by working condition method
5.6.2 Measurement of range and indication for the state of charge by constant speed
method
5.6.2.1 Adopt the test by the constant speed method to simultaneously measure the range and
indication for the stage of charge.
5.6.2.5 Test record of range. after the test, record the range Dconstant-speed (expressed in km,
rounded off to one decimal place), meanwhile, record the time spent (expressed in min), as well
as the average speed, number of stops and stopping time of the vehicle during the test.
5.6.2.6 Test record of indication for the state of charge. during the test, every time the indication
for the state of charge drops by one scale or 10%, record the current distance traveled. When
the vehicle issues a warning for the state of charge, record the distance traveled Dconstant-speed 1.
5.7 Calculation of Energy Consumption
Adopt the working condition method or constant speed method to respectively measure the
range Dworking-condition or Dconstant-speed; in accordance with 5.1 c) or 5.1 e), respectively measure the
energy Eworking-condition or Econstant-speed consumed by the power grid. In accordance with Formula
(1), calculate the energy consumption C (Cworking-condition or Cconstant-speed), expressed in W h/km,
and retain one decimal place.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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