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Decentralized control of vehicles in platoons with robust nonlinear state estimation

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1 Author(s)
Ya-Jun Pan ; Dept. of Mech. Eng., Dalhousie Univ., Halifax, NS

In this paper, a decentralized sliding mode control approach is applied to the control tasks of vehicles in platoons. Using the well known bicycle model, a robust nonlinear observer is introduced to facilitate the controller design which needs full state measurements. The vehicles in platoons can be treated as an interconnected system with a special form. Observer gain and controller gain are properly designed. Appropriate Linear Matrix Inequality (LMI) type conditions are derived according to the Lyapunov method. The main advantages can be summarized as: i) linear approximation of nonlinear vehicle model enables various advanced robust control possibilities; ii) the proposed robust control approach with nonlinear observer ensures the convergence of the whole interconnected system given that the system is operated within the stable region of linearization; iii) stability conditions in the form of LMIs for both observer and controller are rigorously derived.

Published in:

Automation Science and Engineering, 2008. CASE 2008. IEEE International Conference on

Date of Conference:

23-26 Aug. 2008