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Regionless Explicit Model Predictive Control of Active Suspension Systems with Preview

Theunissen, Johan, Sorniotti, Aldo, Gruber, Patrick, Fallah, Saber, Ricco, Marco, Kvasnica, Michal and Dhaens, Miguel (2019) Regionless Explicit Model Predictive Control of Active Suspension Systems with Preview IEEE Transactions on Industrial Electronics.

Regionless Explicit Model Predictive Control of Active Suspension Systems with Preview.pdf - Accepted version Manuscript

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Latest advances in road profile sensors make the implementation of pre-emptive suspension control a viable option for production vehicles. From the control side, model predictive control (MPC) in combination with preview is a powerful solution for this application. However, the significant computational load associated with conventional implicit model predictive controllers (i-MPCs) is one of the limiting factors to the widespread industrial adoption of MPC. As an alternative, this paper proposes an explicit model predictive controller (e-MPC) for an active suspension system with preview. The MPC optimization is run offline, and the online controller is reduced to a function evaluation. To overcome the increased memory requirements, the controller uses the recently developed regionless e-MPC approach. The controller was assessed through simulations and experiments on a sport utility vehicle demonstrator with controllable hydraulic suspension actuators. For frequencies <4 Hz, the experimental results with the regionless e-MPC without preview show a ~10% reduction of the root mean square value of the vertical acceleration of the sprung mass with respect to the same vehicle with a skyhook controller. In the same frequency range, the addition of preview improves the heave and pitch acceleration performance by a further 8% to 21%.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
Kvasnica, Michal
Dhaens, Miguel
Date : 2019
Copyright Disclaimer : © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Uncontrolled Keywords : Active suspension; Regionless explicit model predictive control; Preview; Ride comfort
Related URLs :
Depositing User : Clive Harris
Date Deposited : 22 Jul 2019 09:38
Last Modified : 22 Jul 2019 09:38

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