Cycle-to-Cycle Multipulse Fuel-Injection Control for Advanced Diesel Combustion in Changing and Disturbed Operating Points

When controlled in an open-loop fashion, both stationary and dynamical diesel engine performance can deteriorate due to disturbances. Although cycle-to-cycle fuel injection control has the potential of reducing the performance degradation by manipulating the fueling profile in real time, this potential has not been thoroughly studied. This is...

Fast multiprocessor scheduling with fixed task binding of large scale industrial cyber physical systems

Latest trends in embedded platform architectures show a steady shift from high frequency single core platforms to lower-frequency but highly-parallel execution platforms. Scheduling applications with stringent latency requirements on such multiprocessor platforms is challenging. Our work is motivated by the scheduling challenges faced by ASML,...

On physical and data driven modelling of irrigation channels

In this paper we test the St. Venant equations against real data in order to examine their accuracy and capability to describe the relevant dynamics of an irrigation channel. The St. Venant equations are simulated using the Preissmann scheme, and the simulated and real measured water levels are compared. Some of the parameters in the St. Venant...

Collaborative control of the Manus manipulator

The Manus manipulator is a wheelchair mounted assistive device for severely motor disabled persons. It is a six degrees of freedom rehabilitation robot (excluding external lift and gripper) of which the control can be improved through the introduction of sensors, especially for users with very limited rest functionality. The approach presented...

Closed-loop identification of multivariable processes with part of the inputs controlled

In many multivariable industrial processes a subset of the available input signals is being controlled. In this paper it is analyzed in which sense the resulting partial closed-loop 1 identification problem is actually a full closed-loop problem, or whether one can benefit from the presence of noncontrolled inputs to simplify the identification...

MIMO H2 optimal feedback controller estimation for a vi-brating plate using Subspace Model Identification

Adaptive Active Control algorithms, such as the well known Filtered-X LMS and Filtered-U LMS algorithms, often do not yield optimal performance in practise, due to finite length impulse response of the controller (Filtered-X) or convergence to a local minimum (Filtered-U). In addition, especially for the MIMO case, these adaptive controllers...

Ondersteuning implementatie bladhoekregeling windturbines

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Reduction of the performance of a noise screen due to screen-induced wind-speed gradients: Numerical computations and wind-tunnel experiments

Downwind sound propagation over a noise screen is investigated by numerical computations and scale model experiments in a wind tunnel. For the computations, the parabolic equation method is used, with a range-dependent sound-speed profile based on wind-speed profiles measured in the wind tunnel and wind-speed profiles computed with computational...

Elimination of alkanes from off-gases using biotrickling filters containing two liquid phases

Biological techniques are highly cost-effective for the treatment of off-gases containing low concentrations of pollutants (<5 g/m3). They may also be attractive for the elimination of higher concentrations of explosive hydrocarbons (when compared to incineration). Conventional techniques such as biofilters have low elimination capacities for...