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A general class of nonlinear systems containing multiple delays in both state and input is considered and an output-feedback control design is proposed. The class of systems considered consists of a nominal system of feedforward form as well as appended uncertain dynamics. Both state and input delays are allowed to be time-varying and uncertain. Both delayed and undelayed versions of the input signal...
This paper investigates the problem of global robust stabilization by state feedback, for a family of high order feedforward (upper-triangular) nonlinear systems with delayed input. The uncertain nonlinearities are assumed to satisfy a polynomial growth assumption with a constant growth rate. The designed controllers, which are continuous but not smooth feedbacks, could achieve global asymptotical...
Gasoline engine fuel economy can be improved by minimizing the base spark retard, the spark reserve, during idle. Without additional compensation this approach can also lead to a significant degradation in idle speed control, ISC, disturbance rejection response. In this paper an analysis of ISC lead compensation, feed-forward and disturbance observer design techniques is presented, for ISC systems...
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