Measurable Safety Of Automated Driving Functions In Commercial Motor Vehicles Technological And Methodical Approaches
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Measurable Safety Of Automated Driving Functions In Commercial Motor Vehicles Technological And Methodical Approaches
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Author : Elgharbawy, Mohamed
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-01-13
Measurable Safety Of Automated Driving Functions In Commercial Motor Vehicles Technological And Methodical Approaches written by Elgharbawy, Mohamed and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-13 with Technology & Engineering categories.
With the further development of automated driving, the functional performance increases resulting in the need for new and comprehensive testing concepts. This doctoral work aims to enable the transition from quantitative mileage to qualitative test coverage by aggregating the results of both knowledge-based and data-driven test platforms. The validity of the test domain can be extended cost-effectively throughout the software development process to achieve meaningful test termination criteria.
Probabilistic Prediction Of Energy Demand And Driving Range For Electric Vehicles With Federated Learning
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Author : Thorgeirsson, Adam Thor
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-09-03
Probabilistic Prediction Of Energy Demand And Driving Range For Electric Vehicles With Federated Learning written by Thorgeirsson, Adam Thor and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-03 with categories.
In this work, an extension of the federated averaging algorithm, FedAvg-Gaussian, is applied to train probabilistic neural networks. The performance advantage of probabilistic prediction models is demonstrated and it is shown that federated learning can improve driving range prediction. Using probabilistic predictions, routing and charge planning based on destination attainability can be applied. Furthermore, it is shown that probabilistic predictions lead to reduced travel time.
Trajectory Optimization Based On Recursive B Spline Approximation For Automated Longitudinal Control Of A Battery Electric Vehicle
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Author : Jauch, Jens
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-03-01
Trajectory Optimization Based On Recursive B Spline Approximation For Automated Longitudinal Control Of A Battery Electric Vehicle written by Jauch, Jens and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-03-01 with categories.
This work describes a method for weighted least squares approximation of an unbounded number of data points using a B-spline function. The method can shift the bounded B-spline function definition range during run-time. The approximation method is used for optimizing velocity trajectories for an electric vehicle with respect to travel time, comfort and energy consumption. The trajectory optimization method is extended to a driver assistance system for automated vehicle longitudinal control.
Experimental Investigation Of Relevant Road Surface Descriptors For Tire Road Noise Measurements On Low Absorbing Road Surfaces
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Author : Pinay, Julien
language : en
Publisher: KIT Scientific Publishing
Release Date : 2024-01-16
Experimental Investigation Of Relevant Road Surface Descriptors For Tire Road Noise Measurements On Low Absorbing Road Surfaces written by Pinay, Julien and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-01-16 with categories.
Ihrer Arbeit in der Originalsprache: This work aims at identifying relevant road surface characteristics to mitigate tire-road noise of free-rolling tires using a systematic approach. As using open porous roads is already known as an efficient measure to reduce tire rolling noise, this study will focus on compact road surfaces which have a low acoustic absorption. Measurements on standardized ISO 10844 test tracks and on public roads are used to study the norm's representativity and its completeness.
Constrained Layer Damping In Hybrid Fibre Metal Elastomer Laminates And Its Tolerance To Damage
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Author : Jackstadt, Alexander
language : en
Publisher: KIT Scientific Publishing
Release Date : 2025-04-07
Constrained Layer Damping In Hybrid Fibre Metal Elastomer Laminates And Its Tolerance To Damage written by Jackstadt, Alexander and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-07 with categories.
This work presents experimental, analytical and numerical methods for predicting structural behaviour as well as damping capabilities of hybrid fibre metal elastomer laminates (FMELs), particularly for the assessment and optimisation of constrained-layer damping (CLD) with regard to its tolerance to damage.
Methodik Zur Effizienten Applikation Automatisierter Fahrfunktionen
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Author : Fraikin, Nicolas
language : de
Publisher: KIT Scientific Publishing
Release Date : 2024-04-17
Methodik Zur Effizienten Applikation Automatisierter Fahrfunktionen written by Fraikin, Nicolas and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-04-17 with categories.
In der Arbeit wird eine Methodik zur effizienten Applikation automatisierter Fahrfunktionen vorgestellt. Die Methodik basiert auf einer Einschränkung des relevanten Parameterraums zur Optimierung des Funktionsverhaltens. Außerdem wird ein sensitivitätsbasiertes Optimierungsverfahren vorgestellt, welches optimale Lösungen mit hohem Reifegrad bereitstellt. Zur Erzielung kurzer Rechenzeiten wird ein hybrides Fahrzeugmodell vorgestellt, welches aus einem Einspurmodell und neuronalen Netz besteht. - The work introduces a method for an efficient calibration of automated driving functions. The method is based on an initial limitation of the relevant parameter space for the optimization of function behaviour. Furthermore, a sensitivity based optimization is presented, which provides optimal solution with a high maturity level. Finally, a hybrid vehicle model (based on a single track model and a neuronal network) is described, which enables a high accuracy and short simulation times.
Querdynamik Von Velomobilen Unter Ber Cksichtigung Der Reifeneigenschaften
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Author : Wilhelm, Toni
language : de
Publisher: KIT Scientific Publishing
Release Date : 2024-10-21
Querdynamik Von Velomobilen Unter Ber Cksichtigung Der Reifeneigenschaften written by Wilhelm, Toni and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-10-21 with categories.
Ihrer Arbeit in der Originalsprache: Alternative Fahrzeugkonzepte wie Velomobile können zur Reduzierung der CO2-Emissionen des Verkehrssektors beitragen. Diese leichten, aerodynamischen Liegeräder ermöglichen hohe Geschwindigkeiten, was ihr Einsatzgebiet gegenüber klassischen Fahrrädern erweitert aber auch fahrdynamische Risiken birgt. In dieser Arbeit werden Grundlagen zur Modellierung der Fahrdynamik dieser Fahrzeuge gelegt, typische Nutzungsszenarien analysiert und Möglichkeiten zur Verbesserung der Fahrstabilität untersucht. - Alternative vehicle concepts such as velomobiles can contribute to reducing CO2 emissions in the mobility sector. These lightweight, aerodynamic recumbents are capable of high speeds, which expands their field of application compared to conventional bicycles, but also involves risks in terms of driving dynamics. This work lays the foundations for modeling the driving dynamics of these vehicles, analyzes typical usage scenarios and investigates ways to improve driving stability.
Objektive Fahrkomfortbewertung Des Gesamtfahrzeugs Unter Ber Cksichtigung Menschlicher Wahrnehmungsaspekte
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Author : Festa, Maurizio Mauro
language : de
Publisher: KIT Scientific Publishing
Release Date : 2025-03-28
Objektive Fahrkomfortbewertung Des Gesamtfahrzeugs Unter Ber Cksichtigung Menschlicher Wahrnehmungsaspekte written by Festa, Maurizio Mauro and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-28 with categories.
Diese Arbeit untersucht systematisch fühlbare Reizunterschiede von harmonischen und transienten Schwingungen, die Merkmale von transienten Schwingungen und die multisensorische Wahrnehmung im fühlbaren Frequenzbereich sowie deren Wechselwirkung zu einer akustischen Umgebung. Die Untersuchungen werden vorwiegend auf einem Fahrkomfort-Simulator mit Hilfe von zahlreichen Probandenstudien durchgeführt. Fahrversuche in Testfahrzeugen dienen zusätzlich zur Validierung der Ergebnisse. - This study inquires into just noticeable differences in the stimulus between harmonic and transient vibrations, the properties and effects of transient vibrations, multi-sensory perception in the tactile frequency domain, as well as their interactions in an acoustic environment. The investigations are carried out predominantly on a ride comfort simulator with the help of numerous trials on human participants. Driving tests done using real test vehicles also serve to validate the results.
Effizienzoptimierung Mobilhydraulischer Load Sensing Systeme Durch Reduzierung Systembedingter Druckverluste Am Beispiel Eines Hydraulikbaggers
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Author : Siebert, Jan
language : de
Publisher: KIT Scientific Publishing
Release Date : 2024-09-03
Effizienzoptimierung Mobilhydraulischer Load Sensing Systeme Durch Reduzierung Systembedingter Druckverluste Am Beispiel Eines Hydraulikbaggers written by Siebert, Jan and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-09-03 with categories.
In dieser Arbeit wird eine hydraulische Schaltung zur Reduzierung der Teillastverluste von hydraulisch-mechanischen Load-Sensing (LS) Systemen entwickelt und am Beispiel eines Hydraulikbaggers untersucht. Die erreichbare Effizienzsteigerung wird anhand typischer Baggerzyklen durch eine Potentialanalyse bestimmt, die Komponenten der Schaltung werden ausgelegt und optimiert. Mittels gekoppelter Simulation wird die Performance des optimierten Systems untersucht und deren Funktion verifiziert. - In this thesis, a hydraulic circuit will be developed, which can reduce the partial load losses of hydraulic-mechanic load-sensing systems (LS). As reference application, the LS system of an hydraulic excavator will be used. The efficiency improvement potential of different excavator cycles will be determined and the main components of the new circuit will be designed and optimized. By means of Co-simulation, function and performance of the optimized system will be verified.
Systemauslegung Autarker Hybridantriebe Unter Ber Cksichtigung Kundenspezifischer Randbedingungen
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Author : Förster, Daniel
language : de
Publisher: KIT Scientific Publishing
Release Date : 2025-01-28
Systemauslegung Autarker Hybridantriebe Unter Ber Cksichtigung Kundenspezifischer Randbedingungen written by Förster, Daniel and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-01-28 with categories.
Zur Erfüllung gesetzlicher Anforderungen können konventionelle Antriebe durch Einsatz elektrischer Hybridsysteme hinsichtlich ihrer Effizienz verbessert werden. Autark-Hybridsysteme ohne externe Lademöglichkeit können durch ein hohes Nutzen/Aufwand-Verhältnis überzeugen. In dieser Arbeit wird eine Methode vorgestellt, um Autark-Hybridsysteme optimal auszulegen. Der Fokus liegt dabei auf einer umfassenden Betrachtung von Randbedingungen im Kundenbetrieb. - In order to meet the legal requirements, the efficiency of conventional drives can be improved by using electric hybrid systems. Autarkic hybrid systems without external charging options can offer a high cost/benefit ratio. In this work, a method is presented to optimally design autarkic hybrid drive systems. The focus is on a comprehensive consideration of the boundary conditions in customer operation.