Title

Model Predictive Control for Vehicle Stabilization at the Limits of Handling

Publication Date

7-2013

Journal

IEEE Transactions on Control Systems Technology

Volume

21

Issue

4

First Page

1258

Last Page

1269

Department

Mechanical Engineering

Abstract

Recent developments in vehicle steering systems offer new opportunities to measure the steering torque and reliably estimate the vehicle sideslip and the tire-road friction coefficient. This paper presents an approach to vehicle stabilization that leverages these estimates to define state boundaries that exclude unstable vehicle dynamics and utilizes a model predictive envelope controller to bound the vehicle motion within this stable region of the state space. This approach provides a large operating region accessible by the driver and smooth interventions at the stability boundaries. Experimental results obtained with a steer-by-wire vehicle and a proof of envelope invariance demonstrate the efficacy of the envelope controller in controlling the vehicle at the limits of handling.

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