The task of research work is to study new mechanisms and to minimize disturbance of lead batteries for hybrid electric vehicles. Those arising under the PSoC (Partial State of Charge) and is linked to irreversible sulphation mainly negative electrodes. As one solution to prevent sulphation of the negative electrode appears to be the active ingredients in a negative matter. In the investigated electrodes is verified the influence of carbon, titanium dioxide and silica on the grain size of the order of nanometers.

Lead-acid batteries of hybrid electric vehicles (HEV) are functioning in PSoC regime (Partial State of Charge). In PSoC regime new fail mechanisms occur. These mechanisms usually lead to nonreversible sulphation of negative electrodes. Main aim of this research is to avoid negative electrode sulphation and to improve lifetime of lead-acid accumulators used in HEV.

This master´s thesis deals with possibilities of accumulation electric energy with the electric vehicles and their use for electric grid regulation services. In the introduction of this thesis is characterized the current world-wide state of electromobility, including the Czech Republic. Furthermore are summarized main advantages and disadvantages of the expanded involvement of the electric vehicles in the traffic. In the second part if this Master´s thesis the vehicles are divided into three main groups. The third part of the thesis describes the energy storage and generation units used in vehicles. In this part of the script are each of the energy storage parameters compared. The other chapter includes the list of current battery electric vehicles with all their important technical parameters. The fifth chapter summarizes the possibilities of the use of electric vehicles in the Vehicle-to-grid system. This chapter also discusses in detail the ancillary services of the electric grid in the Czech Republic. In the last part of this Master´s thesis there is calculated an economical potential of electric vehicles providing the primary and secondary regulation.

The thesis is focused on consumer behavior in relation to electric vehicles. In the beginning, the issue of alternatively fuelled vehicle is briefly introduced, including the explanation how this product is supported by the European Union. The next part is devoted to the theoretical background applied in the work. After the theoretical part, there is the literature review followed by both, the qualitative and the quantitative investigation. The results obtained were compared with the results stemming from international research projects. In accordance with the Theory of Diffusion of Innovations, the participants of qualitative survey were labelled as innovators or early adopters, for whom technical knowledge is more important. But on the other hand, for later adopters, the interpersonal relationship is more important, as they can compensate the lack of technical knowledge this way. As follows from the results of qualitative survey, decision-making connected with the acquisition of electric vehicles is influenced by the overall awareness (or knowledge, experience), then by technical characteristics of the purchase together with economic factors and by the perceived expectations of other people. Most of participants have some knowledge about electric vehicles. They often mention barriers preventing...

Durch die Integration mindestens eines weiteren Energiewandlers in den Antriebsstrang gewinnen parallele Hybridfahrzeuge einen zusätzlichen Freiheitsgrad gegenüber konventionellen Fahrzeugen. Neben der Auslegung und Effizienz der einzelnen Antriebskomponenten, ist vor allem die Nutzung dieses zusätzlichen Freiheitsgrades entscheidend dafür verantwortlich, inwiefern die beim Betrieb eines Hybridfahrzeugs erwünschten Ziele, wie die Minimierung des Kraftstoffverbrauchs oder der Abgasemissionen, erreicht werden können. Zuständig dafür sind sogenannte Betriebsstrategien. In einem ersten Schritt gibt die vorliegende Diplomarbeit einen Überblick aktueller Betriebsstrategieansätze für Fahrzeuge mit einer parallelen Hybridarchitektur und stellt ausgewählte Beiträge wertend gegenüber. Anschließend wird mit der optimierungsbasierten Equivalent Consumption Minimization Strategy (ECMS) ein vielversprechender Ansatz in ein MATLAB/Simulink-Längsdynamikmodell umgesetzt. Die für diesen Ansatz maßgebliche Bestimmung des Äquivalenzfaktors erfolgt dabei ohne Verwendung von Prädiktionsdaten. Eine Gegenüberstellung der erzielten Kraftstoffverbrauchswerte zu denen einer regelbasierten Betriebsstrategie, zeigt die Vorteile des implementierten ECMS-Ansatzes. Um den unterschiedlichen Ladezuständen am Fahrtende gerecht zu werden, wird eine ladungsabhängige Kraftstoffkorrektur vorgestellt.:Abbildungsverzeichnis VII Tabellenverzeichnis IX Abkürzungs- und Symbolverzeichnis X 1 Einleitung 1.1 Motivation 1.2 Zielstellung der Arbeit 1.3 Struktur der Arbeit 2 Energiemanagement paralleler Hybridfahrzeugarchitekturen 2.1 Hybridfahrzeuge 2.2 Hybridfahrzeugarchitekturen 2.3 Betriebsstrategien für parallele Hybridfahrzeugarchitekturen 2.3.1 Betriebsstrategie - Begriffsbestimmung und Einordnung in das Energiemanagement 2.3.2 Bewertungskriterien von Betriebsstrategien 2.3.3 Überblick Betriebsstrategien 3 Optimierungsbasierte Betriebsstrategien 3.1 Mathematischer Ansatz 3.1.1 Das parallele HEV als Anwendungsfall 3.1.2 Neben- und Randbedingungen 3.2 Globale optimierungsbasierte Betriebsstrategien 3.2.1 Dynamische Programmierung (DP) 3.2.2 PONTRJAGINsches Maximumsprinzip (PMP) 3.2.3 Approximation der Kennfelder 3.2.4 Suchheuristiken 3.3 Lokale optimierungsbasierte Betriebsstrategien 3.3.1 Equivalent Consumption Minimization Strategy (ECMS) 3.3.2 Gegenüberstellung ECMS und PMP 3.3.3 Bestimmung des Äquivalenzfaktors 3.4 Zusammenfassung der Vor- und Nachteile optimierungsbasierter Ansätze 4 Regelbasierte Betriebsstrategien 4.1 Deterministisch 4.1.1 Regeladaption mittels Suchheuristiken 4.1.2 Regeldefinition mittels PMP/ECMS 4.2 Fuzzy-Logik 4.3 Zusammenfassung der Vor- und Nachteile regelbasierter Ansätze 5 Auswahl eines zu implementierenden Strategieansatzes 6 Vorstellung des verwendeten Simulationsmodells 6.1 Betrachtete Fahrzyklen 6.2 Fahrzeugmodell 6.3 Implementierung der ECMS 6.3.1 Korrektur des Kraftstoffverbrauchs bei Ladungsabweichung 6.3.2 Auswahl der Strafkosten für den Gangwechsel und den VM- Betriebszustand 7 Simulation und Auswertung des implementierten Strategieansatzes. 7.1 Erweiterung der ECMS durch die nichtprädiktive Anpassung des Äquivalenzfaktors nach PEI 7.1.1 Auswahl des Skalierungsfaktors a - ohne Anpassung des Referenzwerts (λref = const) 7.1.2 Auswahl der Proportionalverstärkung Kp - Anpassung des Referenzwerts (λref ≠ const) 7.2 Vergleich der ECMS mit einer regelbasierten Betriebsstrategie 8 Zusammenfassung und Ausblick Quellenverzeichnis Anhang / By integrating at least one additional energy converter into the drive train, parallel hybrid vehicles gain an additional degree of freedom compared to conventional vehicles. In addition to the design and efficiency of the individual drive train components, especially the use of this additional degree of freedom is the key responsible to achieve the desired goals in the operation of a hybrid vehicle, such as minimizing fuel consumption and exhaust emissions. Responsible for this are so-called supervisory strategies. In a first step, the present thesis provides an overview of current supervisory control strategies for vehicles with a parallel hybrid architecture and compares selected approaches. In a second step, a promising Equivalent Consumption Minimization Strategy (ECMS) is chosen and implemented in a MATLAB/Simulink-longitudinal dynamics model. This approach relates on the determination of the equivalence factor which is carried out without the use of prediction data. A comparison of the fuel consumption, obtained for a rule-based supervisory strategy, shows the advantages of the implemented ECMS approach. To consider the different states of charge at the end of the trip, a charge-dependent fuel correction will be presented.:Abbildungsverzeichnis VII Tabellenverzeichnis IX Abkürzungs- und Symbolverzeichnis X 1 Einleitung 1.1 Motivation 1.2 Zielstellung der Arbeit 1.3 Struktur der Arbeit 2 Energiemanagement paralleler Hybridfahrzeugarchitekturen 2.1 Hybridfahrzeuge 2.2 Hybridfahrzeugarchitekturen 2.3 Betriebsstrategien für parallele Hybridfahrzeugarchitekturen 2.3.1 Betriebsstrategie - Begriffsbestimmung und Einordnung in das Energiemanagement 2.3.2 Bewertungskriterien von Betriebsstrategien 2.3.3 Überblick Betriebsstrategien 3 Optimierungsbasierte Betriebsstrategien 3.1 Mathematischer Ansatz 3.1.1 Das parallele HEV als Anwendungsfall 3.1.2 Neben- und Randbedingungen 3.2 Globale optimierungsbasierte Betriebsstrategien 3.2.1 Dynamische Programmierung (DP) 3.2.2 PONTRJAGINsches Maximumsprinzip (PMP) 3.2.3 Approximation der Kennfelder 3.2.4 Suchheuristiken 3.3 Lokale optimierungsbasierte Betriebsstrategien 3.3.1 Equivalent Consumption Minimization Strategy (ECMS) 3.3.2 Gegenüberstellung ECMS und PMP 3.3.3 Bestimmung des Äquivalenzfaktors 3.4 Zusammenfassung der Vor- und Nachteile optimierungsbasierter Ansätze 4 Regelbasierte Betriebsstrategien 4.1 Deterministisch 4.1.1 Regeladaption mittels Suchheuristiken 4.1.2 Regeldefinition mittels PMP/ECMS 4.2 Fuzzy-Logik 4.3 Zusammenfassung der Vor- und Nachteile regelbasierter Ansätze 5 Auswahl eines zu implementierenden Strategieansatzes 6 Vorstellung des verwendeten Simulationsmodells 6.1 Betrachtete Fahrzyklen 6.2 Fahrzeugmodell 6.3 Implementierung der ECMS 6.3.1 Korrektur des Kraftstoffverbrauchs bei Ladungsabweichung 6.3.2 Auswahl der Strafkosten für den Gangwechsel und den VM- Betriebszustand 7 Simulation und Auswertung des implementierten Strategieansatzes. 7.1 Erweiterung der ECMS durch die nichtprädiktive Anpassung des Äquivalenzfaktors nach PEI 7.1.1 Auswahl des Skalierungsfaktors a - ohne Anpassung des Referenzwerts (λref = const) 7.1.2 Auswahl der Proportionalverstärkung Kp - Anpassung des Referenzwerts (λref ≠ const) 7.2 Vergleich der ECMS mit einer regelbasierten Betriebsstrategie 8 Zusammenfassung und Ausblick Quellenverzeichnis Anhang

Im Zuge der immer größer werdenden Knappheit fossiler Ressourcen und des damit verbundenen Anstiegs des Rohölpreises ergibt sich ein Trend hin zur Elektromobilität. In den nächsten Jahren werden jedoch nur Elektrofahrzeuge mit deutlich eingeschränkter maximaler Reichweite im Vergleich zu Benzin- oder Dieselfahrzeugen produziert werden können. Um den täglichen Umgang des Kunden mit einem Elektrofahrzeug trotzdem möglichst reibungslos zu ermöglichen, wurde im Rahmen dieser Arbeit eine neuartige Anzeige der verbleibenden Reichweite auf der Navigationskarte entwickelt. Nach detaillierter Analyse vorhandener Ansätze wurde je ein empirisches und ein modellbasiertes Verfahren ausgearbeitet. Die Ansätze wurden systematisch verglichen und zu einem komplett neuartigen, hybriden Ansatz kombiniert. Die auftretenden Verbräuche des Fahrzeugs werden im Kundenbetrieb erfasst, je nach Fahrsituation klassifiziert und für eine Extrapolation in der Zukunft verwendet. Die entwickelte Methodik zur Untersuchung der erreichbaren Genauigkeit ergab ein erzielbares Fehlermaß von durchschnittlich unter 10%. / Due to the prospect of a worldwide shortage of fossil fuels and the correlated increase of prices for crude-oil, a global trend to invest in electric mobility has started. During the next couple of years, electric vehicles will still have restrictions on the maximum distance that can be driven before having the need to recharge the battery. The potential costumers face the so-called „range-anxiety“, the fear to be stranded prior to reaching the destination. In order to provide a safe and easy way of operating such a vehicle, the work conducted in the course of this doctoral thesis led to a new way of displaying the remaining range of the vehicle on a navigation map. After detailed analysis of the state of the art, an empirical- and a model-based solution for calculating the remaining range were developed utilizing predictive map-data from a roadnetwork. After a systematical optimization of the developed solutions, an embedded prototype was developed which captured the driving situation of the vehicle together with the corresponding energy-consumption in order to provide a context-aware interpolation of the remaining range, depending on where the costumer would drive next. A developed methodology of objectively determining the error produced by the system resulted in a mean-deviation of 10% of absolute value.

It is time to phase out fossil fuels and invest our efforts in green energy production through a major restructuring of the energy system. At the same time, more people are acquiring electric vehicles (EVs), thus creating a higher demand of electricity, and solar panels, allowing the consumer to also be a micro-producer. In order to systematically perform these changes, it is important to gain a better knowledge of the current customers as well as be able to make more accurate predictions about their future consumption. Vattenfall Eldistribution (VE) is one of several operators of the electric grid and, as of this day, still produces effect forecasts based on static estimations using the Velander formula. This has been a successful method in the past, however, with the current rate of change and the complexity in the consumption behaviour, it has become more difficult to estimate the aggregated load on the grid. It is also unattainable to cover the future demands by only expanding the grid. This creates the need for optimising the current grid, making more dynamic effect forecast and creating a smart grid. Our purpose is to help VE develop typical load profiles (TLPs), a more dynamic way to estimate peak loads, for private customers in the Uppsala region. VE provided us with time series data regarding the customers' consumption, as well as, attribute data describing the fuse size, heating system, contract type, etc., of these customers. A third dataset was also acquired through the Swedish Transport Agency regarding EV owners. These datasets allowed us to implement the three different parts of this project. The first part involved the creation of Attribute based TLPs with the help of the different attributes found in the VE's database. The goal for this part was to investigate the impact of specific attributes on the TLPs. The second part concerned the development of Behaviour based TLPs by implementing clustering algorithms that groups the customers based on behaviour alone. Thereafter, the distribution of attributes in the different groups was examined, in order to evaluate if there is a connection between the attributes and the consumption patterns identified. The third part studied the effect of EVs on the consumption behaviour. For this part, we implemented both attribute and behaviour based TLPs. The results of the Attribute based TLPs part concluded that fuse size has minimal impact on the TLPs whereas heating system entails a larger variation. In the second part of the project, Behaviour based TLPs, TLPs were successfully created with the help of clustering algorithms. However, no clear linkage between the consumption patterns and the attributes could be determined due to an evident overlap in the attributes between the created clusters. The final part of this project, EV owner based TLPs, verified the hypothesis that EV owners most likely charge their vehicles during the evening and night and established a clear visual increase in the consumption pattern in relation to non EV owners. An overall uncertainty that affects the results of all parts of this project is the accuracy of VE's data attributes and in order to confirm the conclusions of this thesis the degree of accuracy of the attributes should be determined.

<p>The electrification trend affecting off-road vehicles is paving the way toward dedicated electrified hydraulic actuation systems. Although traditional centralized fluid power architectures are still utilized in many applications for low cost, power density, and reliability, nowadays emission policy results in an increasing interest in developing electro-hydraulic actuator (EHA) solutions. EHAs enable non-throttling actuation and energy recuperation during overrunning loads, leading to higher transmission efficiency and lower fuel consumption. These features in energy efficiency make EHAs competitive in meeting emission regulations compared to conventional hydraulic solutions.</p> <p>The key challenge in developing the EHA solution comes from the high cost and space requirements, especially for the adoption of self-contained EHAs in mobile applications. In this study, two architectures for the EHA are proposed, a closed-circuit architecture and an open-circuit one, to determine the most practical and efficient configuration. The most effective open-circuit architecture with distributed concepts is further investigated for implementation, which requires less modification of the mechanical structures and performs more efficiently than the closed-circuit alternative. The proposed EHA is driven by an electro-hydraulic unit (EHU) consisting of a variable-speed electric motor and a fixed-displacement hydraulic pump, which is relatively cost-effective. A novel hydraulic configuration is proposed, which allows the EHA to cover full-speed operating ranges in four quadrants. </p> <p>To verify the EHA design, the behavior of the proposed system should be predicted prior to costly experiments and demonstrations. For this purpose, an integrated simulation model is developed based on the lumped parameter approach in the Amesim environment. The model includes the electric system, the hydraulic system, and the mechanism to be implemented, which are capable of flexible analysis of functionality, efficiency, and thermal performance.</p> <p>In this work, a dedicated test rig for EHA testing is developed. The test rig can help verify EHA performance, test the control algorithm, and diagnose errors before implementing the system on real applications. The experimental results from the test rig also validate the simulation model. An independent load drive of the test rig allows testing all possible  loading conditions of the proposed EHA, thus demonstrating the energy performance in four quadrants. Thermal behavior is investigated with long duty cycles to determine the need for additional cooling equipment. After the validation of the hydraulic configuration, a power electronics setup is added to the test rig, which allows to drive the EHA system with the novel designed EHUs. Validation on the test platform paves the way for implementation in a vehicle. </p> <p>As a final step, the proposed EHA system is implemented in a reference vehicle, a Case New Holland TV380 skid steer loader. A novel designed EHU is adopted to drive the system for technology demonstration. The energy savings capacity of the EHA is investigated in comparison to the baseline measurements of the traditional open-center hydraulic architecture. The impressive savings from the reduction of throttling losses and energy recovery guide the possible commercialization of such EHAs in mobile hydraulic applications. The controller design of the implemented EHA system is investigated with the aim of improving the dynamic performance, e.g., reducing damping oscillation. Basic power management strategies are also studied to integrate EHA with the power train of current hydraulic machines. Regarding future work, based on this research but not within the scope of this study, the proposed EHA system can be adopted with different types of prime movers, such as axial piston machines as the hydraulic part of an EHU. Furthermore, the design approach proposed in this study can help resize the EHA system for other applications with different loading conditions and power requirements, and the energy savings capability can be further investigated. With this, a comprehensive market analysis will be performed for the commercialization of EHA. </p>

La presente tesis tiene como propósito lograr un Modelo de Negocio de Implementación de Electrolineras en la ciudad de Lima que pueda ser efectuado por las distintas distribuidoras de Energía Eléctrica Renovable, para lo cual se demostró su viabilidad y rentabilidad. La coyuntura internacional está demostrando un creciente interés hacia la conservación del medio ambiente. Esta preocupación común de las sociedades del mundo viene originando, de la mano con la tecnología, proyectos de gran beneficio en materia ecológica, principalmente en el campo del electro movilidad. Nuestra ciudad viene siendo testigo de estos cambios con la reciente aparición de vehículos menores de motor eléctrico como motos, bicimotos y scooters. Sin embargo, la realidad del transporte limeño exige soluciones de mayor envergadura como la adopción de vehículos eléctricos para transporte público y privado. Esta tendencia que viene cobrando fuerza a nivel sudamericano ha despertado el interés del estado peruano, que viene implementando un marco normativo para impulsar el crecimiento del mercado de vehículos eléctricos y la infraestructura necesaria para su desempeño. En este contexto surge la necesidad de implementar puntos de abastecimiento de recargas eléctricas, denominadas comercialmente como electrolineras, que contribuya con el inminente cambio de transporte mundial en el que nuestra ciudad necesita incorporarse. Es menester nuestro, en el marco de la innovación que impulsa nuestra casa educativa, desarrollar una propuesta de negocio viable, ecológica y con miras al futuro que nos merecemos. / The purpose of this tesis is to propose an EV Charging Station Business Model in the city of Lima that can be implemented by any of the distributors of Renewable Electric Power, for which their viability and profitability would be demonstrated. The international situation is showing us a growing interest in environmental conservation. This common concern of the societies arround the world has originated, side by side with technology, projects of great benefit in ecological matters, mainly in the field of electro mobility. Our city has witnessed these changes with the recent entry of smaller electric motor vehicles such as motorcycles, bicycles and scooters. However, the reality of Lima transportation requires a better solution such as the adoption of electric vehicles for public and private transportation. This trend that has been gaining strength into South America, has aroused the interest of the Peruvian state, which has been implementing a regulatory normative to boost the growth of the electric vehicle market and the infrastructure necessary for its operation. In this context, there is a need to implement points of supply of electric recharges, commercially known as electrolineras, which contributes to the imminent change of world transport in which our city needs to be incorporated. For the previously exposed, we consider necessary, in this path of the innovation that our educational house is embrassing, to develop a viable and ecological business proposal according to the future that we deserve. / Trabajo de investigación

There has been an increased push away from the traditional combustion-engine powered vehicle due to environmental, health, and political concerns. As a result, alternative methods of transportation such as electric vehicles (EVs) have gaining popularity in the market. However, the EVs are not penetrating the market as quickly as expected, due in part to a combination of range, charge anxiety, and their financial costs. EVs cannot travel far due to limited driving range and require longer charge times than combustion-engine powered vehicles to recharge. Coupled with a lacking infrastructure for charging, the feasibility of an all-electric transportation market is still not possible. We propose a novel system in which we study and characterize the feasibility of increasing the effective driving range of a battery electric vehicle by utilizing inductive charge transfer to create an ad-hoc charging network where vehicles can “share” charge with one another. The application of wireless charge transfer from vehicle-to-vehicle (V2V) is the first of its kind and does not require any changes to current metropolitan infrastructures. Through the use of computer networking and communications algorithms, we analyze real-world commuter and taxi data to determine the potential effectiveness of such a system. We propose a participation and incentive mechanism to encourage participation in this network that enables the system to be functional.To illustrate proof of principle for V2V charging at traffic lights, we simulate a simplified model in which vehicles only exchange charge at traffic lights without coordination with other vehicles. Using a greedy heuristic, vehicles only exchange charge if they happen to meet another vehicle that has charge to share. The heuristic is greedy since decisions are made at each iteration with longer optimality not being considered. We are able to demonstrate an increase in effective driving range of EVs using these simplistic assumptions. In this thesis, we develop and quantify a complete simulation framework, which allows EVs to operate using charge sharing. We analyze data from the United States Department of Transportation, New York City Taxi and Limousine Commission, and Regional New York City data sources to understand the cumulative driving distance distributions for passenger/commuter vehicles and taxicabs in large metropolitan areas such as New York City. We show that the driving distributions can best be represented as heavy-tail distribution functions with most commuter vehicles not requiring additional charge during a typical day’s usage of their vehicle as compared to taxicabs, which regularly travel more than 100 miles during a 12-hour shift. We develop and parameterize several variables for input into our simulation framework including driving distance, charge exchange heuristics, models for determining pricing of charge units, traffic density, and geographic location. The inclusion of these parameters helps to build a framework that can be utilized for any metropolitan area to determine the feasibility of EVs. We have performed extensive evaluation of our model using real data. Our current simulations indicate that we can increase the effective distance that an electric vehicle travels by a factor of at least 2.5. This increased driving range makes EVs a more feasible mode of transportation for fleet vehicles such as taxicabs that rely heavily on commuting long cumulative distances. We have identified areas for future improvement to add further parameters to make the model even more sensitive. Finally, we focus on the application of our charge sharing framework in a real-world application for utilizing this methodology for the New York City bus system. In partnership with the New York City MTA, we launched a feasibility study of converting the currently majority hybrid bus fleet into a complete electric bus fleet with charging available at bus stops during scheduled bus stops. Unlike the earlier charge sharing framework, this simulation focuses on discrete distances that are traveled by the bus before having an opportunity to charge at the next bus stop. In this scenario, a large source of variability is the amount of time that the bus is able to stop at a bus stop for charging since this is determined by the amount of time needed to successfully embark and disembark the passengers at the given bus stop. This particular variability impacts how much charge the bus is able to gain during any given stop. We conclude with a list of opportunities for future work in expanding the model with additional parameters and conclusions of our work. Further, we identify areas of further research that outline the potential positive and negative outcomes from a charge sharing system that can be extended to various other applications including micro-mobility applications such as electric scooters and bicycles.