Title
An Energy-Based Nonlinear Pressure Observer For Electronically Controlled Pneumatic Brake Fault Diagnosis
Keywords
ECP brake; Fault diagnosis; GLR; Nonlinear system; Pressure observer
Abstract
As widely used in the heavy-haul combined trains, electronically controlled pneumatic(ECP) brake is a highly nonlinear system. Heavy-haul combined train consists of variant freight trucks with different types and different load weights. When operating with brake mode, inconsistent braking forces will aggravate impacts of collisions between adjacent freight cars, especially uncertainty faults occur and the trucks in rigid connection mode. Therefore, it is necessary to conduct online fault diagnosis for ECP brakes. In this paper, an Lyapunov-based globally stable pressure observer for ECP brake is proposed. Firstly, according to the output value of the observer, a residual generator is designed and residual signals are evaluated with the Generalized Likelihood Ratio(GLR) method. Secondly, fault diagnosis can be achieved by GLR when system's faults happened. Finally, experimental results demonstrate and validate effectiveness of the proposed observer and algorithm.
Publication Date
7-12-2017
Publication Title
Proceedings of the 29th Chinese Control and Decision Conference, CCDC 2017
Number of Pages
3005-3010
Document Type
Article; Proceedings Paper
Personal Identifier
scopus
DOI Link
https://doi.org/10.1109/CCDC.2017.7979024
Copyright Status
Unknown
Socpus ID
85028089090 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/85028089090
STARS Citation
Yang, Yingze; Xiong, Lu; Huang, Zhiwu; and Lin, Kuo Chi, "An Energy-Based Nonlinear Pressure Observer For Electronically Controlled Pneumatic Brake Fault Diagnosis" (2017). Scopus Export 2015-2019. 7136.
https://stars.library.ucf.edu/scopus2015/7136