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This paper presents a new design method of a PID (proportional-integral-derivative) controller that provides sufficient stability margins and good time responses. It is possible to design an optimal PID controller with properties of a linear quadratic regulator or LQR by taking advantage of the fact that the integral-type optimal servo, which is a kind of the LQR, designed for a second order system...
This paper describes a design method of an output and/or error signal feedback controller for a single-input-single-output plant based on integral-type optimal servomechanism. The obtained closed-loop control system has as sufficient stability margins and good control performance as a state feedback one with an observer. Particularly the resultant controller for a second-order delay plant becomes...
The inherent dynamics of a vehicle are important factors in automatic vehicle control systems. This paper discusses the stability of an automatic lateral motion controlled vehicle equipped with a four wheel steering system focusing in particular on the vehicle dynamics. The four wheel steering system is configured around a model following control theory. The results of a stability analysis and simulations...
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