GB/T 39323-2020 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 39323-2020 | English | 205 |
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Performance Requirement and Testing Method for Lane Keeping Assist (LKA) System of Passenger Cars
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GB/T 39323-2020: Performance Requirement and Testing Method for Lane Keeping Assist (LKA) System of Passenger Cars
---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/GBT39323-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040
T 40
Performance Requirement and Testing Method for
Lane Keeping Assist (LKA) System of Passenger Cars
Issued on. NOVEMBER 19, 2020
Implemented on. JUNE 01, 2021
Issued by. State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Terms and Definitions... 4
4 requirements... 5
5 Test Conditions... 6
6 Test Methods... 8
Appendix A (Informative) System Status and Conversion... 12
Appendix B (Normative) Functional Safety Requirements... 13
Foreword
This Standard was drafted as per the rules specified in GB/T 1.1-2009.
This Standard was proposed by the Ministry of Industry and Information Technology of
PRC.
This Standard shall be under the jurisdiction of National Technical Committee of Auto
Standardization (SAC/TC 114).
Drafting organizations of this Standard. Zhejiang Geely Holding Group Co., Ltd.; China
Automotive Technology & Research Center Co., Ltd.; Chongqing Vehicle Test and
Research Institute Co., Ltd.; China FAW Group Co., Ltd.; Volvo Car (Asia Pacific)
Investment Holding Co., Ltd.; Daimler Greater China Ltd.; Bosch Automobile Parts
(Suzhou) Co., Ltd.; Xiangyang Daan Automobile Test Center Co., Ltd.; Zhejiang Asia-
Pacific Mechanical & Electronic Co., Ltd.; Zhejiang Vie Science and Technology Co.,
Ltd.; SAIC Motor Corp Ltd. Technical Center; Dongfeng Motor Corporation Technical
Center; BAIC Motor Corporation Limited; Shanghai Motor Vehicle Inspection
Certification & Tech Innovation Center; and Dongfeng-Peugeot-Citroen
Automobile Co., Ltd.
Chief drafting staffs of this Standard. Liu Weiguo, Liu Di, Li Bo, Zhang Xing, Xu Jianxun,
Zhang Cheng, Wu Hangzhe, Niu Chengyong, Zhang Yunxia, Liu Dan, Han Jin, Li Chao,
Shi Zhengtang, Chen Feng, Su Xing, Li Yan, Han Chao, Cao Yin, and Yu Tai.
Performance Requirement and Testing Method for
Lane Keeping Assist (LKA) System of Passenger Cars
1 Scope
This Standard specifies the requirements, test conditions and test methods of the lane
keeping assist (LKA) system for passenger cars.
This Standard applies to Type-M1 vehicles equipped with lane keeping assist (LKA)
system, and other vehicles can be implemented by reference.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
GB 5768.3 Road Traffic Signs and Markings - Part 3.Road Traffic Markings
GB/T 26773-2011 Intelligent Transport Systems - Lane Departure Warning
Systems - Performance Requirements and Test Procedures
GB/T 34590 (all parts) Road Vehicles – Functional Safety
3 Terms and Definitions
For the purpose of this document, the terms and definitions given in GB 5768.3, GB/T
26773-2011 and the following apply. For ease of use, some terms and definitions given
in GB/T 26773-2011 are listed repeatedly below.
3.1 Lane
The driving area that the driver does not need to change the driving path, and there
isn’t any interference from fixed obstacles.
[GB/T 26773-2011, definition 3.1]
3.2 Lane boundary line
The visible road traffic markings that are used to determine lane boundaries.
3.3 Lane departure
The outer edge of the front wheel of the vehicle exceeds or shall exceed the lane
boundary line.
3.4 Rate of departure
The vertical component of the speed when the vehicle deviates from the lane boundary
line.
3.5 Lane keeping assist; LKA
During the driving of the vehicle, monitor the relative position of the vehicle and the
lane boundary line in real-time, continuously or when necessary, control the lateral
movement of the vehicle to keep the vehicle in the original lane.
4 requirements
4.1 General requirements
4.1.1 The system shall be able to recognize the relative position of the vehicle and the
lane boundary line in a good lane boundary line environment, and assist the driver to
keep the vehicle in the original lane.
4.1.5 The system shall monitor its own status and prompt the driver with clear and
easy-to-understand status information, including system failure, system
standby/activation, system ON/OFF, etc. Among them, the system ON/OFF
information may be viewed in indirect ways such as calling the menu.
4.1.6 The system shall be set with function inhibition, failure, and exit conditions and
described in the motor vehicle product manual.
4.1.7 Refer to Appendix A for the state conversion of the system.
4.1.8 The functional safety requirements of the system shall be formulated in
accordance with GB/T 34590 (all parts), and meet the requirements of Appendix B.
4.2 Performance requirements
4.2.1 The function of lane departure prevention shall ensure that the lane departure
does not exceed 0.4m outside the lane boundary line; the function of lane centering
control shall ensure that the lane departure does not exceed the outside lane boundary
line.
4.2.3 The lateral acceleration of the vehicle caused by the system activation shall be
no greater than 3m/s2, and the rate of change of the lateral acceleration of the vehicle
shall be no greater than 5m/s3.
5 Test Conditions
5.1 Requirements for test environment
Except for special provisions, the test environment requirements are as follows.
5.2 Requirements for test road
The test road shall meet the following conditions.
5.3 Requirements for test vehicle
The mass of the test vehicle shall be BETWEEN the complete vehicle kurb mass plus
the total mass of the driver and the test equipment (the total mass of the driver and the
test equipment does not exceed 150kg) AND the maximum allowable total mass. The
status of the test vehicle shall not be changed after the start of the test.
5.4 Requirements for test instrument
5.4.1 Instrument test parameters
The test parameters of the collection and recording instrument of the test vehicle
include but not limited to the following.
5.4.2 Requirements for instrument measurement accuracy
The data collection and recording instrument of the test vehicle shall at least meet the
following accuracy requirements.
6 Test Methods
6.1 Test categories
There are three categories of tests.
6.2 Straight lane departure prevention test
The test road shall be a long straight road that meets the requirements of 5.2.
In the test, the test vehicle travels in a straight line in the lane.
6.3 Curve lane departure prevention test
The test road is a straight lane connected with a curve lane, and the length of the curve
lane shall ensure on which the vehicle can travel for more than 5s. The curve lane is
divided into a fixed curvature part and a variable curvature part.
6.4 Lane centering control test
The test road is a straight lane connected with a curve lane, thereof, the length of the
curve lane shall ensure on which the vehicle can travel for more than 5s. The curve
lane is divided into a fixed curvature part and a variable curvature part. the curvature
of the fixed curvature part is 2×10-3 m-1 (radius ≤500m).
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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