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 ›› 2022, Vol. 47 ›› Issue (18): 48-54.DOI: 10.16638/j.cnki.1671-7988.2022.018.010

• 设计研究 • 上一篇    

基于 ISO 26262 的 7DCT 输入轴转速监控 策略的分析

王章宏 1,2，赵秀栩*1   

  1. 1.武汉理工大学 机电工程学院； 2.东风鼎新动力系统科技有限公司
  • 出版日期:2022-09-30 发布日期:2022-09-30
  • 通讯作者: 赵秀栩
  • 作者简介:王章宏（1990—），男，硕士，研究方向为变速箱标定、变速箱功能安全软件开发，E-mail:walter1004@163.com。 通信作者：赵秀栩（1968—），女，教授，研究方向为机械工况监测与智能诊断、生产运作与企业信息化，E-mail: Zhaoxiuxu @whut.edu.cn。

Analysis on 7DCT Input Shaft Speed Monitoring Strategy Based on ISO 26262

WANG Zhanghong 1,2 , ZHAO Xiuxu *1   

  1. 1. School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, China; 2.Dongfeng Dinsin Powertrain Technology Company Limited
  • Online:2022-09-30 Published:2022-09-30
  • Contact: ZHAO Xiuxu

PDF

摘要： 为保证双离合自动变速器调速换挡的功能安全，基于 ISO 26262 标准的要求，对调速 换挡功能进行了概念阶段的设计，确定了避免输入轴转速过高的安全目标。结合 3 层监控方 法，分别设计了功能应用层、功能监控层和硬件监控层的输入轴转速监控策略。基于 MATLAB/ Simulink 创建了控制模型，最后进行故障注入测试。测试结果表明，所设计的监控策略符合 ISO 26262 要求，并保证输入轴转速的功能安全。

关键词: 功能安全；双离合自动变速器；输入轴转速；监控策略；ISO 26262；MATLAB/Simulink

Abstract: In order to ensure the functional safety of dual clutch transmission speed regulation and shift, based on the requirements of ISO 26262 standard, the concept phase design of speed regulation and shift function was carried out. The safety goal of avoiding high speed of input shaft was determined. Combined with the three-level monitoring method, the monitoring strategies of the input shaft speed including the functional application level, the functional monitoring level and the hardware monitoring level were designed respectively. The control model was established based on Matlab/Simulink, and the fault injection test was carried out. The test results show that the designed monitoring strategy meets the requirements of ISO 26262 and ensures the functional safety of the input shaft speed.

Key words: Functional safety; Dual clutch transmission; Input shaft speed; Monitoring strategy; ISO 26262; MATLAB/Simulink