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Constrained Active Suspension Control via Nonlinear Feedback Technology

  • Weichao SunEmail author
  • Huijun Gao
  • Peng Shi
Chapter
Part of the Studies in Systems, Decision and Control book series (SSDC, volume 204)

Abstract

In the above chapters, the linear quarter-car active suspension systems are studied based on \(H_{\infty }\) control approach over both entire frequency domain and finite frequency domain. For half-car model and full-car model, however, the vehicle suspensions are no longer easily simplified as linear systems, but nonlinear ones, because of the nonlinear characteristics of suspension components and the coupling between subsystems. As a consequence, some nonlinear control methods should be put forward to tackle the problem. In Sect. 4.1, terminal slide mode control is applied to realize finite time-stabilization which ensures that the tracking errors reach zero in finite time. Meanwhile, the singularity and chattering problems are resolved, and robustness and disturbance rejection properties of the system are good. In Sect. 4.2, when designing the adaptive backstepping controller, parameter uncertainties including spring nonlinearity and the piece-wise linear behavior of the damper are taken into consideration to form the basis of accurate control.

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.School of AstronauticsHarbin Institute of TechnologyHarbinChina
  2. 2.School of Electrical and Electronic EngineeringUniversity of AdelaideAdelaideAustralia

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