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Dissertations / Theses on the topic 'Single track model'

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1

Goulding, John. "The Single-Track Three Legged Mobile Robot." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/312548.

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Unstable legged robots fall over without active stabilization, typically by repositioning the feet to maintain/regain stability of balance. This dissertation concerns the development of a Single-Track Three Legged Mobile Robot (ST3LMR) and control system. A proof-of-concept was demonstrated through digital simulation and experimentation with physical prototypes. The ST3LMR comprises a body and three articulated legs arranged in a narrow profile, one behind the other, to walk and maneuver along narrow trails and paths. The ST3LMR walks by placing successive footfalls in a generally single-track
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2

Thellman, Jonas. "Vehicle Dynamics Testing in Advanced DrivingSimulators Using a Single Track Model." Thesis, Linköpings universitet, Fordonssystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-79397.

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The purpose of this work is to investigate if simple vehicle models are realisticand useful in simulator environment. These simple models have been parametrisedby the Department of Electrical Engineering at Linköping University and havebeen validated with good results. The models have been implemented in a simulatorenvironment and a simulator study was made with 24 participants. Eachtest person drove both slalom and double lane change manoeuvres with the simplemodels and with VTI’s advanced model. The test persons were able to successfullycomplete double lane changes for higher velocities with
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3

Lindfeldt, Olov. "Quality on single-track railway lines with passenger traffic : Anlytical model for evaluation of crossing stations and partial double-tracks." Licentiate thesis, KTH, School of Architecture and the Built Environment (ABE), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4560.

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<p>Railway transportation is showing a substantial increase. Investments in new infrastructure, new fast and comfortable vehicles, and high frequency of service are important factors behind the increase.</p><p>Infrastructure configuration and timetable construction play important roles in the competitiveness of railway transportation. This is especially true on single-track lines where the travel times and other timetable related parameters are severely restricted by crossings (train meetings). The crossings also make the lines’ operation more sensitive to disturbances.</p><p>Since the major p
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4

Lindfeldt, Olov. "Quality on single-track railway lines with passenger traffic : analytical model for evaluation of crossing stations and partial double-tracks /." Stockholm : Department of Transport and Economics, KTH, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4560.

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5

Doležal, Kamil. "Výpočtová analýza jízdního chování vozidla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254421.

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The diploma thesis deals with computational analysis of driving behavior of a vehicle. The first section summarizes and explains the basic parameters of steering geometry. Next section covers the tests which are used to study driving behavior of vehicles. The practical part consists of computational model that is able to simulate and evaluate tests of step steer input.
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Lundquist, Christian. "Sensor Fusion for Automotive Applications." Doctoral thesis, Linköpings universitet, Reglerteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-71594.

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Mapping stationary objects and tracking moving targets are essential for many autonomous functions in vehicles. In order to compute the map and track estimates, sensor measurements from radar, laser and camera are used together with the standard proprioceptive sensors present in a car. By fusing information from different types of sensors, the accuracy and robustness of the estimates can be increased. Different types of maps are discussed and compared in the thesis. In particular, road maps make use of the fact that roads are highly structured, which allows relatively simple and powerful model
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Frydrýšek, Jan. "Simulační modely vozidel." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218012.

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This thesis deals with simulation vehicle models for lateral control. It surveys step by step to models of tire, truck and control. At the end are showed influences of model parameters to vehicles dynamics.
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Andersson, Claes. "Predictive Model for Traffic Control in Underground Mines." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75964.

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Due to the nature of tunnels, a driver in an underground mine may find themselves driving without much vision of the road up ahead. The tunnels usually allow for traffic in both directions but are often only wide enough for a single vehicle. To let vehicles pass each other meeting slots have been carved into the tunnel walls, where one can park while the other passes. Because of the limited vision, however, it is unlikely that a meeting with another vehicle will occur directly next to such a meeting slot. Instead, one of the vehicles must reverse to the closest meeting slot in order to let the
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9

Hejtmánek, Petr. "Vliv aerodynamických parametrů na jízdní vlastnosti vozidel." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-234180.

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The main aim of this dissertation was to develop a computational tool capable of evaluating the influence of aerodynamics on the handling of a vehicle. The methodology it uses is based on the simulation of driving manoeuvres with a single-track model of a vehicle, which was composed with an emphasis on minimizing the amount of necessary input parameters. This simple model, which allows the assessment of the influence of aerodynamics on vehicle dynamic and static driveability, therefore doesn’t require large amount of input data, which makes the acquirement of relevant values easier. The comput
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10

Duprey, Benjamin Lawrence Blake. "A New Fuzzy Based Stability Index Using Predictive Vehicle Modeling and GPS Data." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/32762.

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The use of global positioning systems, or GPS, as a means of logistical organization for fleet vehicles has become more widespread in recent years. The system has the ability to track vehicle location, report on diagnostic trouble codes, and keep tabs on maintenance schedules. This helps to improve the safety and productivity of the vehicles and their operators. Additionally, the increasing use of yaw and roll stability control in commercial trucks has contributed to an increased level of safety for truck drivers. However, these systems require the vehicle to begin a yaw or roll event before t
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11

Boháč, Petr. "Simulační modely lidského operátora." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219955.

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This paper deals with simulation models of the human operator controlling lateral position of simulated vehicle. I am comparing parameters and quality of the McRuer human driver model and the PID controller. Simulated system is single-track vehicle model. Simulated driver is tasked to pass a Moose test with this vehicle model. I am using the simulated annealing method to find optimal parameters of the driver model and then I visualize realized test in 2D and 3D visualization. In the end of this paper I compare simulations of the driver models and assess achieved results.
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12

Sladká, Pavla. "Využití rekurzivní metody nejmenších čtverců pro analýzu dynamiky vozidel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229022.

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Tato diplomová práce nastiňuje teoretické základy potřebné pro návrh algoritmu rekurzivní metody nejmenších čtverců a následně jeho aplikaci na experimentální data naměřená při testovacím manévru uskutečněném v roce 2001. Analyzována byla příčná dynamika jednostopého rovinného modelu vozidla. Práce také obsahuje srovnání výsledků získaných jednak rekurzivním algoritmem a dále i algoritmem Kalmanova filtru.
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13

Sureka, Arihant. "Improvement of an existing Integrated Vehicle Dynamics Control System influencing an urban electric car." Thesis, KTH, Flygdynamik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-284446.

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The Integrated Vehicle Dynamics Control (IVDC) concept can influence the vehicle behaviour both longitudinally and laterally with just one upper level control concept and further lower level controllers. This demands for state estimation of the vehicle which also includes estimating parameters of interest for the vehicle dynamicist. The approach to this research is firstly in developing a robust unscented Kalman filter (UKF) estimator for the vehicle side slip tracking and also for cornering stiffness estimation which is then fed to the existing model predictive control allocation (MPCA) contr
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14

Saad, Jorge Antonio Cury. "Modelo para análise da operação de trechos ferroviários em linha singela." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/18/18137/tde-26012018-183007/.

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O objetivo da pesquisa aqui relatada é desenvolver um modelo de simulação estocástica capaz de reproduzir a circulação de trens em trechos de linha singela. O modelo é usado para avaliar o impacto que determinadas alterações podem provocar sobre o desempenho do sistema. Os fatores estudados são o número de estações existentes, os horários de partida dos trens, os tempos de parada nas estações e a velocidade média dos trens, que foram combinados em sete cenários diferentes. Os efeitos das alterações propostas são avaliados em termos do tempo total de percurso dos trens, o tempo médio de espera
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15

Lindfeldt, Olov. "Railway operation analysis : Evaluation of quality, infrastructure and timetable on single and double-track lines with analytical models and simulation." Doctoral thesis, KTH, Trafik och Logistik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12727.

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This thesis shows the advantages of simple models for analysis of railway operation. It presents two tools for infrastructure and timetable planning. It shows how the infrastructure can be analysed through fictive line designs, how the timetable can be treated as a variable and how delays can be used as performance measures. The thesis also gives examples of analyses of complex traffic situations through simulation experiments. Infrastructure configuration, timetable design and delays play important roles in the competitiveness of railway transportation. This is especially true on single-track
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16

Einsle, Stefan. "Analyse und Modellierung des Reifenübertragungsverhaltens bei transienten und extremen Fahrmanövern." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-65158.

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Durch den zunehmenden Einsatz fahrdynamischer Regelsysteme und der Fahrzeugauslegung im Grenzbereich gewinnt die Modellierung des Reifenübertragungsverhaltens bei transienten und extremen Fahrmanövern signifikant an Bedeutung. Die im Rahmen dieser Arbeit neu entwickelten Messverfahren zur Analyse und Charakterisierung des transienten Reifenseitenkraftverhaltens zeigen, dass die bisher gewählten Verzögerungsansätze erster Ordnung, beschrieben durch die Einlauflänge, keine ausreichende Abbildungsgenauigkeit liefern. Folglich wird ein neuer Verzögerungsansatz zweiter Ordnung eingeführt und durch
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17

PAPURELLO, DAVIDE. "Biogas from anaerobic digestion of biomass (Organic Fraction of Municipal Solid Waste and sewage sludge): trace compounds characterization through an innovative technique (PTR-MS) and detrimental effects on SOFC energy generators, from single cells to short stacks." Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2544741.

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The use of biofuels instead of conventional fossil derived fuels is becoming an increasingly crucial topic for future energy systems where environmental issues are also taken into account. Biomass exploitation, including biowaste, appears as a promising means for the energy production and also it contributes to the carbon dioxide emissions reduction. Among the different techniques for biomass exploitation, interesting aspects are covered by the dry anaerobic fermentation of organic waste (OFMSW). In addition also interesting aspects can be achieved by the anaerobic digestion of sewage sludge i
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18

Vestin, Albin, and Gustav Strandberg. "Evaluation of Target Tracking Using Multiple Sensors and Non-Causal Algorithms." Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-160020.

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Today, the main research field for the automotive industry is to find solutions for active safety. In order to perceive the surrounding environment, tracking nearby traffic objects plays an important role. Validation of the tracking performance is often done in staged traffic scenarios, where additional sensors, mounted on the vehicles, are used to obtain their true positions and velocities. The difficulty of evaluating the tracking performance complicates its development. An alternative approach studied in this thesis, is to record sequences and use non-causal algorithms, such as smoothing, i
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19

Chen, Ming-Chuan, and 陳明銓. "The Study of Railway Track for Dual and Single Direction Operation-Upon Taiwan Railway Train Operation Model." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/93855158125649127551.

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20

Hamm, Nicholas. "State-trace analysis of associative recognition: comparing single-process and dual-process models." Thesis, 2014. http://hdl.handle.net/2440/85199.

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The aim of this thesis is to investigate competing explanations of the processes underlying associative recognition. Like recognition memory for individual items, associative recognition is currently understood through two different classes of model. The first is the single-process model class which holds that associative recognition decisions are based on a continuum of associative memory strength. The second is the dual-process model class, which holds that associative recognition decisions are based on two sources of information, called familiarity and recollection. Familiarity is conceptua
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21

Einsle, Stefan. "Analyse und Modellierung des Reifenübertragungsverhaltens bei transienten und extremen Fahrmanövern: Analysis and modelling of tyre transfer behaviour for transient and extreme driving manoeuvres." Doctoral thesis, 2010. https://tud.qucosa.de/id/qucosa%3A25510.

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Durch den zunehmenden Einsatz fahrdynamischer Regelsysteme und der Fahrzeugauslegung im Grenzbereich gewinnt die Modellierung des Reifenübertragungsverhaltens bei transienten und extremen Fahrmanövern signifikant an Bedeutung. Die im Rahmen dieser Arbeit neu entwickelten Messverfahren zur Analyse und Charakterisierung des transienten Reifenseitenkraftverhaltens zeigen, dass die bisher gewählten Verzögerungsansätze erster Ordnung, beschrieben durch die Einlauflänge, keine ausreichende Abbildungsgenauigkeit liefern. Folglich wird ein neuer Verzögerungsansatz zweiter Ordnung eingeführt und durch
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