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A.J.J. van den Boom

45 records found

Solving Solvability of Implicit Max-Min-Plus-Scaling Systems

A deep dive into solvability and control of implicit Max-Min-Plus-Scaling systems

This thesis dives deep into the concepts of solvability and control of implicit Max-Min-Plus-Scaling (MMPS) systems. An advanced mathematical framework used to model discrete-event systems combining max-plus, min-plus, and conventional algebraic operations. These systems have a b ...

Model Predictive Approaches for Automated Emergency Maneuvers

A Comparative Analysis of Hybridization for Vehicle Control

Model Predictive Control (MPC) is an effective reference tracking strategy for automated vehicle control, particularly useful during emergency evasive maneuvers such as double lane changes. This control method often requires a high-fidelity vehicle model to accurately capture non ...

Control Strategies for Max-Min-Plus-Scaling Systems

An introduction on open-loop and closed-loop control

This thesis offers a detailed exploration of the integration of input signals and control mechanisms within max-min-plus-scaling (MMPS) systems, a subclass of discrete event (DE) systems. Unlike traditional control systems, which rely on continuous evolution modeled by
differ ...
Inland waterway transport is a low CO2 emission alternative to road transport. A shift towards more inland waterway transport could also help reduce road congestion and noise pollution. Infrastructure bottlenecking, particularly at locks, is part of the reasons preventing this sh ...
The transition towards a more sustainable future has been more prevalent and necessary in recent years due to the increase of greenhouse gas emissions. With the increasing size of modern cities, major concern is risen in the transport sector, becoming one of the main contributors ...
In this thesis a novel method for the realisation of Max-Min-Plus-Scaling (MMPS) functions is presented. It has previously been shown that continuous piecewise affine (PWA) functions, conjunctive MMPS functions (also lattices- or min-max functions) and kripfganz MMPS functions (d ...
This thesis extensively examines the influential factors affecting the performance of approximations of Model Predictive Control (MPC) control laws using neural networks. MPC is a control strategy that solves an optimization problem at each timestep. This problem can be computati ...

Stability for Discrete Event Max-Min-Plus (MMP) and Max-Min-Plus-Scaling (MMPS) Systems

Max-Plus Lyapunov Functions for Stability Analysis and Control

This research presents a framework for analysing the stability and control of discrete-event systems, specifically emphasising max-min-plus (MMP) and max-min-min-plus-scaling (MMPS) systems. These systems are valuable modelling tools for various applications, including production ...
Sorting systems form an example of event driven systems. These types of systems are referred to as discrete event systems (DES), and they consist of jobs that need to be performed at available resources. In an autonomous sorting system, jobs consist of robots receiving and delive ...

Max-Plus Linear Parameter Varying Systems

Solvability Framework for Implicit Systems and a Model Predictive Control Approach

This thesis is devoted to the class of Max-Plus Linear Parameter Varying (MP-LPV) systems. Recently, this class is introduced as an extension of the class of Max-Plus-Linear (MPL) systems in the field of max-plus algebra. The MPL framework is useful when modeling Discrete Event S ...
The goal in this thesis is to make a prediction on the total processing time for logistical systems to complete their tasks. For simple systems that can be described using a regular max plus state space model this is done by calculating the systems eigenvalue and multiplying that ...
Switching max-plus linear (SMPL) systems written in max-plus algebra form a robust framework to model discrete-event systems governed by synchronisation whose behaviour may switch over time. Their evolution is described by a max-plus linear state-space representation that may cha ...
Delay Management is proven to reduce the average passenger delay. However, the current method of Delay Management either uses fast basic or slow accurate passenger rerouting. The former has a downfall in that it is inaccurate since it assumes that passengers delay is the periodic ...
In this thesis, research is done on the influence and benefits of an iterative interaction between a scheduler and its subsystems for an updated scheduler which minimizes to a certain cost. This is done by providing a case study of a beer brewery. The scheduler is obtained by usi ...
As the demand for the railways is expected to raise in the future, researchers are looking for ways to improve the railway capacity to increase the transport ability. Virtual coupling is a new solution based on the moving block technology, which further shortens train separation ...
Inland waterways form a natural network infrastructure with the capacity for waterborne transport of people and goods for moving freight from seaports to the hinterland. Recently, Inland Waterway Transport (IWT) has been promoted more extensively by the European Union and various ...
An intracranial aneurysm is a bulge in the cerebral vasculature. The rupture of an aneurysm results in a brain bleed. As a consequence, most patients become severely handicapped or may even die. Preventive treatment with endovascular coiling is controversial due to the high risk ...
Currently, inland waterway shipping mainly includes barges and bulk transportation with little to no variation in volume, product, and route. Since transport over water emits less CO2 per tonne-km than road transport, a potential way to reduce CO2 emissions is to transport more c ...

Model Predictive Control on Max-min-plus-scaling Systems

Control procedure and stability conditions

Max-plus-linear (MPL) systems are systems that are linear in max-plus algebra. A generalization of these systems are Max-Min-Plus-Scaling (MMPS) systems. Next to maximization and addition (plus), MMPS systems use the operations minimization and scaling. They are discrete-event (D ...
Some above the knee amputees take a smaller step with their prosthetic leg. A momentum exchange device (MED) can increase the step length by exchanging angular momentum between the device and the leg. However, there are no controllers for MEDs during regular gait. The goal of thi ...