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Mathematical Problems in Engineering
Volume 2016, Article ID 1932107, 13 pages
Research Article

Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

1Magneto-Electronic Lab, School of Physics and Technology, Nanjing Normal University, Nanjing 210046, China
2Vibration Control Lab, School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing 210042, China
3Center for Advanced Vehicle Engineering, Department of Mechanical Engineering, Concordia University, Montreal, QC, Canada H3G 1M8

Received 21 November 2015; Revised 3 April 2016; Accepted 6 April 2016

Academic Editor: Reza Jazar

Copyright © 2016 Hailong Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A structure decoupling control strategy of half-car suspension is proposed to fully decouple the system into independent front and rear quarter-car suspensions in this paper. The coupling mechanism of half-car suspension is firstly revealed and formulated with coupled damping force (CDF) in a linear function. Moreover, a novel dual dampers-based controllable quarter-car suspension structure is proposed to realize the independent control of pitch and vertical motions of the half car, in which a newly added controllable damper is suggested to be installed between the lower control arm and connection rod in conventional quarter-car suspension structure. The suggested damper constantly regulates the half-car pitch motion posture in a smooth and steady operation condition meantime achieving the expected completely structure decoupled control of the half-car suspension, by compensating the evolved CDF.