中国物理B ›› 2015, Vol. 24 ›› Issue (5): 58901-058901.doi: 10.1088/1674-1056/24/5/058901

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Transportation-cyber-physical-systems-oriented engine cylinder pressure estimation using high gain observer

李永福, 寇晓培, 郑太雄, 李银国   

  1. Center for Automotive Electronics and Embedded System, College of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • 收稿日期:2014-08-22 修回日期:2014-11-23 出版日期:2015-05-05 发布日期:2015-05-05
  • 基金资助:
    Project Project of Application and Development of Chongqing, China (Grant No. cstc2014yykfB40001), the Natural Science Funds of Chongqing, China (Grant No. cstc2014jcyjA60003), and the Doctoral Start-up Funds of Chongqing University of Posts and Telecommunications, China (Grant No. A2012-26).

Transportation-cyber-physical-systems-oriented engine cylinder pressure estimation using high gain observer

Li Yong-Fu (李永福), Kou Xiao-Pei (寇晓培), Zheng Tai-Xiong (郑太雄), Li Yin-Guo (李银国)   

  1. Center for Automotive Electronics and Embedded System, College of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2014-08-22 Revised:2014-11-23 Online:2015-05-05 Published:2015-05-05
  • Contact: Li Yong-Fu E-mail:laf1212@163.com
  • About author:89.40.-a
  • Supported by:
    Project Project of Application and Development of Chongqing, China (Grant No. cstc2014yykfB40001), the Natural Science Funds of Chongqing, China (Grant No. cstc2014jcyjA60003), and the Doctoral Start-up Funds of Chongqing University of Posts and Telecommunications, China (Grant No. A2012-26).

摘要: In transportation cyber-physical-systems (T-CPS), vehicle-to-vehicle (V2V) communications play an important role in the coordination between individual vehicles as well as between vehicles and the roadside infrastructures, and engine cylinder pressure is significant for engine diagnosis on-line and torque control within the information exchange process under V2V communications. However, the parametric uncertainties caused from measurement noise in T-CPS lead to the dynamic performance deterioration of the engine cylinder pressure estimation. Considering the high accuracy requirement under V2V communications, a high gain observer based on the engine dynamic model is designed to improve the accuracy of pressure estimation. Then, the analyses about convergence, converge speed and stability of the corresponding error model are conducted using the Laplace and Lyapunov method. Finally, results from combination of Simulink with GT-Power based numerical experiments and comparisons demonstrate the effectiveness of the proposed approach with respect to robustness and accuracy.

关键词: transportation cyber-physical-systems, high gain observer, cylinder pressure estimation, vehicle-to-vehicle communications

Abstract: In transportation cyber-physical-systems (T-CPS), vehicle-to-vehicle (V2V) communications play an important role in the coordination between individual vehicles as well as between vehicles and the roadside infrastructures, and engine cylinder pressure is significant for engine diagnosis on-line and torque control within the information exchange process under V2V communications. However, the parametric uncertainties caused from measurement noise in T-CPS lead to the dynamic performance deterioration of the engine cylinder pressure estimation. Considering the high accuracy requirement under V2V communications, a high gain observer based on the engine dynamic model is designed to improve the accuracy of pressure estimation. Then, the analyses about convergence, converge speed and stability of the corresponding error model are conducted using the Laplace and Lyapunov method. Finally, results from combination of Simulink with GT-Power based numerical experiments and comparisons demonstrate the effectiveness of the proposed approach with respect to robustness and accuracy.

Key words: transportation cyber-physical-systems, high gain observer, cylinder pressure estimation, vehicle-to-vehicle communications

中图分类号:  (Transportation)

  • 89.40.-a