汽车工程 ›› 2021, Vol. 43 ›› Issue (9): 1375-1382.doi: 10.19562/j.chinasae.qcgc.2021.09.015

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基于用户大数据的电子助力制动器可靠性工况特征研究

赵礼辉1,2,3(),周驰1,徐侃峰4,王震1,郑松林1,2,3   

  1. 1.上海理工大学机械工程学院,上海 200093
    2.机械工业汽车强度与可靠性评价重点实验室,上海 200093
    3.上海新能源汽车可靠性评价公共技术平台,上海 200093
    4.上海汇众汽车制造有限公司,上海 200122
  • 收稿日期:2021-07-12 修回日期:2021-07-29 出版日期:2021-09-25 发布日期:2021-09-26
  • 通讯作者: 赵礼辉 E-mail:Pheigoe@126.com
  • 基金资助:
    国家重点研发计划(2018YFB0104802);上海市汽车工业科技发展基金(2005)和上海市扬帆计划(19YF1434400)

Research on Reliability Condition Characteristics of Electronic Brake Booster Based on User Big Data

Lihui Zhao1,2,3(),Chi Zhou1,Kanfeng Xu4,Zhen Wang1,Songlin Zheng1,2,3   

  1. 1.School of Mechanical Engineering,University of Shanghai for Science & Technology,Shanghai 200093
    2.CMIF Key Laboratory for Strength and Reliability Evaluation of Automotive Structures,Shanghai 200093
    3.SAIC Commercial Vehicle Technology Center,Shanghai 200093
    4.Shanghai Huizhong Automobile Manufacturing Co. ,Ltd. ,Shanghai 200122
  • Received:2021-07-12 Revised:2021-07-29 Online:2021-09-25 Published:2021-09-26
  • Contact: Lihui Zhao E-mail:Pheigoe@126.com

摘要:

本文中以不同地域和车型的实际用户运行数据为基础,通过提取制动工况片段对制动时间、制动距离和制动强度分布进行分析;根据台架试验数据,建立制动强度与工况载荷之间的关系,实现用户运行数据向工况载荷的转换,并分析用户载荷下典型部件的损伤和损伤贡献,进一步将用户工况与标准工况在频次和损伤方面进行对比,结果表明现有的可靠性试验规范难以有效复现用户实际制动水平。因此建议及早制定更加合理的电子助力制动系统可靠性评价规范。

关键词: 用户大数据, 电子助力制动器, 可靠性, 工况特征

Abstract:

Based on the real users' operation data of different regions and vehicle models, the distributions of braking time, braking distance and braking strength are analyzed by extracting the segments of braking conditions. According to bench test data, the relationship between braking strength and operating load is established to achieve the transformation of user operating data to operating load, analyze the damage and damage contribution of typical components under the user's load, and further compare user working conditions with standard working conditions in terms of frequency and damage. The results show that the existing reliability test specifications are hard to effectively reproduce the actual braking level of users, so it is strongly suggested to formulate more rational reliability assessment specifications of electronic brake booster as soon as possible.

Key words: user big data, electronic brake booster, reliability, working condition characteristics