Open Science Research Excellence

Markus Reichhartinger

Publications

2

Publications

2
9306
Robust Position Control of an Electromechanical Actuator for Automotive Applications
Abstract:
In this paper, the position control of an electronic throttle actuator is outlined. The dynamic behavior of the actuator is described with the help of an uncertain plant model. This motivates the controller design based on the ideas of higher-order slidingmodes. As a consequence anti-chattering techniques can be omitted. It is shown that the same concept is applicable to estimate unmeasureable signals. The control law and the observer are implemented on an electronic control unit. Results achieved by numerical simulations and real world experiments are presented and discussed.
Keywords:
higher order sliding-mode, throttle actuator, electromechanicalsystem, robust and nonlinear control.
1
12101
Sliding-Mode Control of a Permanent-Magnet Synchronous Motor with Uncertainty Estimation
Abstract:

In this paper, the application of sliding-mode control to a permanent-magnet synchronous motor (PMSM) is presented. The control design is based on a generic mathematical model of the motor. Some dynamics of the motor and of the power amplification stage remain unmodelled. This model uncertainty is estimated in realtime. The estimation is based on the differentiation of measured signals using the ideas of robust exact differentiator (RED). The control law is implemented on an industrial servo drive. Simulations and experimental results are presented and compared to the same control strategy without uncertainty estimation. It turns out that the proposed concept is superior to the same control strategy without uncertainty estimation especially in the case of non-smooth reference signals.

Keywords:
sliding-mode control, Permanent-magnet synchronous motor, uncertainty estimation, robust exact differentiator.