Control design for a diesel engine model with time delay

The concept of control Lyapunov function has proven a useful tool for designing robust control laws for nonlinear systems. Recently, this concept has been extended to time-delay systems in the form of control Lyapunov Razumikhin functions and control Lyapunov Krasovsky functionals (CLKF). Universal formulas, such as Sontag's formula (1989) and domination redesign formula, apply to CLKF's and achieve robustness properties that include infinite gain margin. In this paper we illustrate the application of a CLKF based design on a model of turbocharged diesel engine with exhaust gas recirculation valve that includes intake-to-exhaust transport delay.

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