Ingo Glowatzky

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This paper discusses the problem of position control of a directional valve in absence of a plant model. Due to strong nonlinearities of the system, advanced control strategies are mandatory if ideal closed-loop performance is recommended. Oftentimes, strategies based on complex PID-control structures using nonlinear gains for different controller branches,(More)
This publication discusses the topic of sliding mode control and its practical application to position control of a hydraulic directional valve. The main issue relies on the design of an adaptive sliding function, to achieve optimal closed loop performance. For this, a Lyapunov-based stability proof for a second order sliding mode controller is presented.(More)
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