Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 101 for “"State of Charge"”.
-
Design and development of advanced machine learning algorithms for lithium-ion battery state-of-charge estimation
… have been becoming more and more popular because of their long life and lightweight. Accurate estimation of the SOC help in making plans in an application to conserve and further enhance battery life. State of Charge (SOC) estimation is a difficult task made more challenging by changes in battery …
-
Li-ion battery electrode state of charge and degradation monitoring using battery casing as the reference electrode
Lithium-ion battery (LIB) internal state such as state of charge (SOC), electrode capacity, and available lithium-ion monitoring is helpful for effective battery degradation monitoring. Monitoring these internal parameters is challenging due to the weak observability of the electrode parameters and …
-
Development of a Parallel Hybrid Energy Management Strategy with Consideration of Drive Quality and State of Charge Dynamics
The development of a rule-based hybrid energy management strategy for a parallel P4 full hybrid without access to a functional prototype is presented. A simulation model is developed using component bench data and validated using EPA-reported fuel economy test data, including a proposal for …
-
Comparative Analysis of Coulomb Counting and Extended Kalman Filter for State of Charge Estimation in Battery Management Systems
State of Charge (SOC) is simply a measure of the amount of available charge in a battery cell. It is not possible to directly measure SOC because it is a function of the stoichiometric concentration of ions in the cell, hence current and voltage measurements were used to obtain the required …
-
Aviation Propulsive Lithium-Ion Battery Packs State-of-Charge and State-of-Health Estimations and Propulsive Battery System Weight Analysis
… research is in high demand with the development of electric and hybrid aircraft. Accurate inflight state-of-charge and state-of-health estimations of aviation battery packs still remain challenging. This thesis puts efforts on estimating the state-of-charge, state-of-health, and remaining energy …
-
Estimating State of Charge and State of Health of Vehicle Battery Energy Storage Systems for On-Road and Second-Life Applications
L'abstract è presente nell'allegato / the abstract is in the attachment
-
Modular modeling and control of a hybrid unmanned aerial vehicle’s powertrain
The emerging trend of vehicle electrification is revolutionizing the transportation industry by replacing traditional mechanical and hydraulic components with higher performing, more reliable, and more efficient electrical components. However, the introduction of a complex electrical network …
-
Hybrid Electric Power System Validation through Parameter Optimization
… data was obtained by discharging the battery of a modified 2013 Chevrolet Malibu hybrid electric vehicle. The resulting battery model provided accurate simulation results over the validation data. For the constant current discharge, the mean squared error between measured and simulated data …
-
Development and Testing of a Hybrid Vehicle Energy Management Strategy
… for the EcoCAR Mobility Challenge. The objective of the energy management strategy is to reduce energy consumption while maintaining the drive quality targets of a conventional vehicle. A comprehensive model of the hybrid powertrain and vehicle physics is constructed to aid in the development of …
-
The dynamic characterisation and modelling of lead-acid batteries for electric vehicle applications
In an effort to increase the available capacity of a lead-acid battery, the effects of pulsed discharge currents as opposed to the effects of continuous discharge currents on the battery were investigated, for a wide range of frequency, mark/space ratio and peak current of the discharge waveform. …
-
Optical diagnostics of lithium-sulfur and lithium-ion battery electrolytes using attenuated total reflection infrared spectroscopy
Operando investigations of batteries allow direct monitoring of intrinsic chemical and physical processes governing performance. FTIR spectroscopy is a powerful technique for real time species identification and quantification. ATR FTIR allows investigations of battery electrolytes in realistic …
-
Planning and scheduling proximity operations for autonomous orbital rendezvous
… for autonomous orbital rendezvous. The algorithm of this thesis allows the operator to specify planned modes, which encode the chase satellite's operations. The scheduler optimally places these modes in the midst of the environmental conditions that fall out of the chase satellite's orbit …
-
An electrical network model for computing current distribution in a spirally wound lithium ion cell
… they still have significant limitations. Safety of these batteries is one of the concerns that need to be addressed when they are used in mainstream vehicles, because of heating issues that may lead to thermal runaway. This work aims at supplementing the existing electrochemical heat distribution …
-
Predictive energy managament strategy for a parallel hybrid electric vehicle
… is to minimize the fuel consumption (FC) of HEVs using the information on the current state of charge (SoC) of the battery, data available from a standard on-board navigation system and real-time traffic data from an on board computer driver assistance systems. This objective is achieved …
-
Dynamic reconfigurable battery systems via graph-based deep reinforcement learning
… are built from hundreds or thousands of battery cells connected in fixed series-parallel configurations. These rigid topologies limit efficient power management, making it difficult to respond to dynamic cell imbalance and thereby reducing overall battery operating time. To address …
-
A hybrid battery cell voltage equalizer considering thermal behavior and capacity fade characteristics
… temperature, aiming for accurate estimation of state of health (SOH). The thesis proposes two novel methods for lithium-ion battery SOH tracking and estimation using the developed battery model. Furthermore, the thesis introduces a hybrid battery cell balancing topology designed to achieve …
-
Rapid remaining-useful-life prediction of Li-ion batteries using image-based machine learning
With the increased integration of lithium-ion batteries in our everyday lives, accurate and reliable battery management systems have become an imperative aspect of the well-being of our everyday electronics. This thesis proposes the use of novel machine learning methodologies to predict the …
-
Assessing the viability of level III electric vehicle rapid-charging stations
This is an analysis of the feasibility of electric vehicle rapid-charging stations at power levels above 300 kW. Electric vehicle rapid-charging (reaching above 80% state-of-charge in less than 15 minutes) has been demonstrated, but concerns have been raised about the high levels of electrical …
Page 1 of 6