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GB/T 39323-2020: Performance Requirement and Testing Method for Lane Keeping Assist (LKA) System of Passenger Cars Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/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 ContentsForeword... 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... 13ForewordThis 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 Cars1 ScopeThis 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 ReferencesThe 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 Safety3 Terms and DefinitionsFor 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 requirements4.1 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 Conditions5.1 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 Methods6.1 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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