QC/T 1069-2017 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| QC/T 1069-2017 | English | 145 |
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Permanent magnet synchronous drive motor system for electric vehicles
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QC/T 1069-2017: Permanent magnet synchronous drive motor system for electric vehicles---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/QCT1069-2017
QC
AUTO INDUSTRY STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
T 35
Permanent magnet synchronous
drive motor system for electric vehicles
Issued on. JANUARY 9, 2017
Implemented on. JULY 1, 2017
Issued by. Ministry of Industry and Information Technology of the
People's Republic of China
Foreword
This Standard was drafted in accordance with the rules given in GB/T 1.1-2009
“Directives for standardization - Part 1.Structure and drafting of standards”.
This Standard was proposed by and shall be under the jurisdiction of National
Technical Committee on Automobiles of Standardization Administration of
China (SAC/TC 114).
The drafting organizations of this Standard. Shanghai Electric Drive Co., Ltd.,
Beijing Institute of Technology, Anhui Ankai Automobile Co., Ltd., China
Automotive Technology and Research Center, CRRC Zhuzhou Electric
Locomotive Research Institute Co., Ltd., Zhejiang Younet Motor Co., Ltd.,
Tianjin Qingyuan Electric Vehicle Co., Ltd., Anhui Juyi Automation Equipment
Co., Ltd., Shanghai Automotive Group Co., Ltd., Dayang Motor New Power
Technology Co., Ltd., BYD Auto Industry Co., Ltd., Jingjin Electric Technology
(Beijing) Co., Ltd., Shanghai Dajun Power Control Technology Co., Ltd.,
Chongqing Chang'an New Energy Automobile Co., Ltd.
Main drafters of this Standard. Ying Hongliang, Jia Aiping, Song Qiang, Wu
Qingmiao, Zha Baoying, Chen Shundong, Gao Jinwen, Li Yifeng, Huang Xin,
Li Bo, Dou Ruzhen, Fu Guangsheng, Zhou Xuguang, Cai Wei, Lei Xiaojun, Xue
Shan.
Permanent magnet synchronous
drive motor system for electric vehicles
1 Scope
This Standard specifies the technical requirements, test methods, inspection
rules, marks and identifiers of permanent magnet synchronous drive motor
system for electric vehicles.
This Standard is applicable to the permanent magnet synchronous drive motor
system for electric vehicles.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB 755, Packaging and storage marks
GB/T 2900.25, Electrotechnical terminology - Rotating electrical machines
GB/T 2900.33, Electrotechnical terminology - Power electronics
GB/T 18488.1-2015, Drive motor system for electric vehicles - Part 1.
Specification
GB/T 18488.2-2015, Drive motor system for electric vehicles - Part 2.Test
method
GB/T 19596, Terminology of electric vehicles
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in GB/T
2900.25, GB/T 2900.33, GB/T 18488.1-2015 and GB/T 19596 as well as the
followings apply.
3.4 no-load loss of drive motor system
the power consumed by the drive motor system when the drive motor runs at a
specified speed and no torque is output
3.5 no-load loss of motor
the power consumed when all the windings of the drive motor are open and
dragged at the specified speed
3.6 steady state short-circuit current
the rms current when all motor windings of the drive motor are short-circuited
and are dragged at the specified speed
3.9 declared value of steady state short-circuit current
average value of steady-state short-circuit current of at least 4 drive motors (2
of them have been subject to the type inspection) at specified speed and
permanent magnet temperature
4 Technical requirements
4.1 General
The drive motor system shall meet the requirements of GB/T 18488.1-2015 and
the followings.
4.4 Tolerance of no-load back electromotive force
The deviation between the back electromotive force and the typical value at
rated speed shall not exceed ±5% between the drive motors of the same
specification and model.
4.5 Cogging torque
The cogging torque shall not exceed the value specified in the product
specification.
4.6 Torque ripple
The torque ripple shall not exceed the value specified in the product
specification.
4.9 Steady-state short-circuit current limit
The steady-state short-circuit current shall not exceed the value specified in the
product specification.
4.10 Steady-state short-circuit current tolerance
The difference between the steady-state short-circuit current measured at the
specified speed and the typical value is not more than ±5% between the drive
motors of the same specification type.
5 Test methods
5.1 General
Except for the test methods specified below, the test methods for other test
items shall be implemented in accordance with GB/T 18488.2-2015.
Unless otherwise specified, the accuracy requirements of measuring
instruments shall be in accordance with GB/T 18488.2-2015.
5.4 Tolerance of no-load back electromotive force
The test is performed under the actual cold condition and the ambient
temperature during the test must be recorded.
5.5 Cogging torque
The test is conducted in the actual cold state.
Place the drive motor smoothly and randomly select 3 different rotor positions.
Rotate the rotor in opposite directions with torque wrench at each position.
5.7 No-load loss of drive motor system
The test is conducted in the actual cold state. When the drive motor system is
under normal electrical connection and cooling conditions specified in the
product technical documentation, the rated voltage is applied on the DC bus
and the drive motor shaft is not connected to the load.
5.8 No-load loss of motor
The test is conducted in the actual cold state.
Drag the drive motor to the specified speed. Record the torque, speed and
power of the torque and speed sensor. The power value is the no-load loss of
the drive motor at this speed. Evenly take at least 5 speed points within the
speed range, including the maximum operating speed.
5.9 Steady-state short-circuit current limit
The test is conducted in the actual cold state.
Use short-circuit conductors to short-circuit all windings of the drive motor as
close to the stator winding outlet as possible.
5.10 Steady-state short-circuit current tolerance
The test method is same with 5.9.
6 Inspection rules
The inspection rules are in accordance with GB/T 18488.1-2015.See Annex A
for inspection items.
7 Marks and identifiers
In accordance with GB/T 18488.1-2015.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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