Searched for: subject:"optimal%5C+control"
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Chowdhri, Nishant (author), Ferranti, L. (author), Santafé Iribarren, Felipe (author), Shyrokau, B. (author)
This work presents a Nonlinear Model Predictive Control (NMPC) scheme to perform evasive maneuvers and avoid rear-end collisions. Rear-end collisions are among the most common road fatalities. To reduce the risk of collision, it is necessary for the controller to react as quickly as possible and exploit the full vehicle maneuverability (i.e.,...
journal article 2021
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Muniyandi, Raj Kumar (author)
Growth of mobility for people and goods transportation has been increasing steadily over the years. With the perpetual increase in number of road vehicles, comes the inevitable problems of traffic and pollution. Various intelligent traffic technologies and strategies have been proposed and implemented over the years to...
master thesis 2020
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Agarwal, Achin (author)
The successful integration of autonomous vehicles (AVs) in human environments is highly dependent on their ability to navigate safely and timely through dense traffic conditions. Such conditions involve a diverse range of human behaviors, ranging from cooperative (willing to yield) to non-cooperative human drivers (unwilling to yield) that need...
master thesis 2020
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Evans, Michael (author), Tindemans, S.H. (author)
This paper presents a framework for deriving the storage capacity that an electricity system requires in order to satisfy a chosen risk appetite. The framework takes as inputs user-defined event categories, parameterised by peak power-not-served, acceptable number of events per year and permitted probability of exceeding these constraints, and...
conference paper 2020
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van der Niet, A.M. (author)
Minimum-time optimisation has been used extensively in motorsports, such as Formula One racing. Using minimum-time optimisation, the ideal racing line as well as control strategies such as braking strategies can be found. This is interesting, as Reijne et al have shown that cyclists apply diverse strategies, specifically during a descent [1]....
master thesis 2020
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de Wringer, Sam (author), Varriale, C. (author), Oliviero, F. (author)
A unified approach to aircraft mission performance assessment is presented in this work. It provides a detailed and flexible formulation to simulate a complete commercial aviation mission. Based on optimal control theory, with consistent injection of rules and procedures typical of aeronautical operations, it relies on generalized...
journal article 2020
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van de Kamp, Gidius (author)
In cases that the voltage source is made of multiple cos’s and we can compensate the current, it is always possible with the first Cauer form. This is caused by the shape of the found transfer function Z(s). This transfer function is a fraction where the odd powers of s are in the numerator, while in the denominator are only even powers of s. In...
bachelor thesis 2020
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George, A. (author)
Robotic assistance for rehabilitation has benefited from the use of models for motor adaptation. The assist-as-needed paradigm for rehabilitation robotics was based on a single-state model of human adaptation to a neurological handicap. Recent studies have shown that human motor adaptation consists of two or more parallel adaptation processes. A...
master thesis 2020
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Spruit, Thomas (author)
Externalities of conventional energy sources encourage a transition to a sustainable energy system. Both the intermittency of renewable energy sources and the carbon-intensity of the heat sector challenge this transition. In the context of heat and renewable power integration, this report focuses on balancing uncertain wind power production...
master thesis 2020
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Koumpis, Nikolaos (author)
Attitude estimation is one of the basic processes of the attitude and orbit control system hosted by every satellite. The spacecraft should be orientated properly during the orbit, according to the mission objectives. The estimation is based on a plethora of sensors, like rate gyroscopes, star trackers, sun and earth sensors, magnetometers (for...
master thesis 2020
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de Boer, Roderick (author)
This paper presents time-optimal transfer trajectories between planar solar-sail displaced libration point orbits around the $L_1$ and $L_2$ points of the Sun-Earth and Earth-Moon systems. Initial guesses for these transfers are generated as two-segment trajectories, with a fixed sail attitude along each segment. The position and velocity...
master thesis 2020
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van Furth, Ghiline (author)
Combined chemo-radiation treatments are often used to enhance tumor cell kill, with respect to their separate treatments. Currently, chemo-radiation therapy treatments are prescribed as a separately optimized radiotherapy treatment with the addition of a generic chemotherapy regimen. The dosing of the combined therapies is mostly based on...
master thesis 2020
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de Wringer, Sam (author)
It is the aim of this research to assess the mission performance of a boxwing aircraft by developing a configurationagnostic, multifidelity optimal control toolbox for performance and mission analysis. The boxwing aircraft, sometimes named a PrandtlPlane (PrP), is an unconventional aircraft. An instance with redundant controls is designed within...
master thesis 2020
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Bjelonic, Marko (author), Sekoor Lakshmana Sankar, Prajish (author), Dario Bellicoso, C. (author), Vallery, H. (author), Hutter, Marco (author)
Wheeled-legged robots have the potential for highly agile and versatile locomotion. The combination of legs and wheels might be a solution for any real-world application requiring rapid, and long-distance mobility skills on challenging terrain. In this paper, we present an online trajectory optimization framework for wheeled quadrupedal robots...
journal article 2020
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Zhao, J. (author), Knoop, V.L. (author), Wang, Z. (author)
Modeling traffic flow at intersections is essential for the design, control, and management of intersections. A challenging feature of microscopic modeling vehicular movement at intersections is that drivers can choose among an infinite number of alternative traveling paths and speeds. This makes it fundamentally different from structured...
journal article 2020
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Evans, Michael (author), Tindemans, S.H. (author), Angeli, David (author)
We consider the problem of dispatching a fleet of heterogeneous energy storage units to provide grid support. Under the restriction that recharging is not possible during the time frame of interest, we develop an aggregate measure of fleet flexibility with an intuitive graphical interpretation. This analytical expression summarises the full set...
journal article 2020
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Scheepmaker, G.M. (author), Pudney, Peter J. (author), Albrecht, Amie R. (author), Goverde, R.M.P. (author), Howlett, Phil G. (author)
Energy-efficient train driving can lead to a significant reduction in both CO<sub>2</sub> emissions and energy consumption. A lot of research has been done on the topic of energy-efficient train control that minimizes total traction energy consumption. Furthermore, the running time supplements in the timetable determine the possibilities for...
journal article 2020
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Chen, N. (author), van Arem, B. (author), Alkim, Tom (author), Wang, M. (author)
Gap selection and dynamic speed profiles of interacting vehicles at on-ramps affect the safety and efficiency of highway merging sections. This paper puts forward a hierarchical control approach for Connected Automated Vehicles (CAVs) to achieve efficient and safe merging operations. A tactical layer controller employs a second-order car...
journal article 2020
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Soares Pinto Leite, J.P. (author), Voskuijl, M. (author)
Purpose: In recent years, increased awareness on global warming effects led to a renewed interest in all kinds of green technologies. Among them, some attention has been devoted to hybrid-electric aircraft – aircraft where the propulsion system contains power systems driven by electricity and power systems driven by hydrocarbon-based fuel....
journal article 2020
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Piscaer, P.J. (author), Soloviev, O.A. (author), Verhaegen, M.H.G. (author)
This paper discusses various practical problems arising in the design and simulation of predictive control methods for adaptive optics. Although there has been increased attention towards optimal prediction and control methods for AO systems, they are often tested in simplified simulation environments. The use of advanced AO simulators...
conference paper 2020
Searched for: subject:"optimal%5C+control"
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