Optimal Disturbance Rejection with Zero Steady-State Error for Nonlinear Vehicle Suspension Systems under Persistent Road Disturbances
Joint Authors
Han, Shi-Yuan
Yang, Xi-Xin
Zhong, Xiao-Fang
Guan, Yuan-Lin
Zhou, Jin
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-31
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The road disturbance rejection problem for vehicle active suspension involving the nonlinear characteristics is researched in this paper.
A continuous-time state space of nonlinear vehicle active suspension is established first, in which the road disturbance is generated from the output of an introduced exosystem based on the ground displacement power spectral density.
After that, based on the dynamics of road roughness and the internal model principle, a disturbance compensator with zero steady-state error is designed, which is related to the dynamic characteristics of road disturbance and independent of the control system model.
By combining the vehicle active suspension system and the designed road disturbance compensator, an augmented system is obtained without explicit indication of road disturbance.
Then by solving a series of decoupled nonlinear two-point-boundary-value problem and employing an iterative computing algorithm, an approximation optimal road disturbance rejection controller is obtained.
Finally, the simulation results illustrate that the proposed approximation optimal road disturbance rejection controller can reduce the values of sprung mass acceleration, tire deflection, suspension deflection, and energy consumption and compensate the nonlinear behaviors of vehicle active suspension effectively.
American Psychological Association (APA)
Zhong, Xiao-Fang& Han, Shi-Yuan& Yang, Xi-Xin& Guan, Yuan-Lin& Zhou, Jin. 2018. Optimal Disturbance Rejection with Zero Steady-State Error for Nonlinear Vehicle Suspension Systems under Persistent Road Disturbances. Shock and Vibration،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1215192
Modern Language Association (MLA)
Zhong, Xiao-Fang…[et al.]. Optimal Disturbance Rejection with Zero Steady-State Error for Nonlinear Vehicle Suspension Systems under Persistent Road Disturbances. Shock and Vibration No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1215192
American Medical Association (AMA)
Zhong, Xiao-Fang& Han, Shi-Yuan& Yang, Xi-Xin& Guan, Yuan-Lin& Zhou, Jin. Optimal Disturbance Rejection with Zero Steady-State Error for Nonlinear Vehicle Suspension Systems under Persistent Road Disturbances. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1215192
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215192