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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) |
Center for Automotive Electronics and Embedded System, College of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China |
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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.
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Received: 22 August 2014
Revised: 23 November 2014
Accepted manuscript online:
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PACS:
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89.40.-a
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(Transportation)
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Fund: 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). |
Corresponding Authors:
Li Yong-Fu
E-mail: laf1212@163.com
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About author: 89.40.-a |
Cite this article:
Li Yong-Fu (李永福), Kou Xiao-Pei (寇晓培), Zheng Tai-Xiong (郑太雄), Li Yin-Guo (李银国) Transportation-cyber-physical-systems-oriented engine cylinder pressure estimation using high gain observer 2015 Chin. Phys. B 24 058901
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