主办：陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊：1976年
汽车实用技术

汽车实用技术 ›› 2023, Vol. 48 ›› Issue (19): 149-155.DOI: 10.16638/j.cnki.1671-7988.2023.019.029

• 测试试验 • 上一篇    

乘用车转向功能安全主客观测试评价方法

李赛赛，梁 东，郭瑞玲，王景先，杨 畅   

  1. 中汽研汽车检验中心（天津）有限公司
  • 出版日期:2023-10-15 发布日期:2023-10-15
  • 通讯作者: 李赛赛
  • 作者简介:李赛赛（1996－），男，硕士，助理工程师，研究方向为汽车底盘测试技术，E-mail:lisaisai@catarc.ac.cn。

Subjective and Objective Test and Evaluation Methods of Passenger Car Steering Functional Safety

LI Saisai, LIANG Dong, GUO Ruiling, WANG Jingxian, YANG Chang   

  1. CATARC Automotive Test Center (Tianjin) Company Limited
  • Online:2023-10-15 Published:2023-10-15
  • Contact: LI Saisai

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摘要： 文章依托某款转向系统装配有电动助力转向系统（EPS）的车型，根据 ISO 26262－ 10:2018 定义的功能安全测试要求，对其转向系统进行危害分析、定义安全目标和导出测试用 例，通过故障注入的方法对转向系统的安全机制进行客观有效性和符合性验证；设计了合理 有效的主观评价打分标准，驾驶员依据真实驾驶感受对安全机制触发后转向操作的舒适性和 可操控性进行评价；实验结果表明，通过主客观相结合的测试评价方法，可以实现对转向系 统功能安全的综合验证和评估。

关键词: 转向系统；功能安全；故障注入；主客观评价

Abstract: This paper relies on a steering system equipped with electrical power steering (EPS), according to the functional safety test requirements defined by ISO 26262－10:2018, conducts hazard analysis on its steering system, defines safety objectives and derives test cases, and conducts objective effectiveness and compliance verification of steering system safety mechanism by fault injection method. A reasonable and effective subjective evaluation scoring standard is designed, and the driver evaluates the comfort and controllability of steering operation after the safety mechanism is triggered according to the real driving experience. The experimental results show that the comprehensive verification and evaluation of functional safety of steering system can be realized by combining subjective and objective test and evaluation method.

Key words: Steering system; Functional safety; Fault injection; Subjective and objective evaluation