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Relevant bibliographies by topics / Powertrain efficiency / Dissertations / Theses

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Dissertations / Theses on the topic 'Powertrain efficiency'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Guebeli, Markus. "Optimum efficiency control of the CTX powertrain." Thesis, University of Bath, 1993. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359851.

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2

Griess, Eric J. "Benchmarking, Characterization and Tuning of Shell EcoMarathon Prototype Powertrain." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1485.

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With the automotive industry ever striving to push the limits of fuel efficiency, the Shell EcoMarathon offers a glimpse into this energy conserving mindset by challenging engineering students around the world to design and build ultra-efficient vehicles to compete regionally. This requires synchronization of engineering fields to ensure that the vehicle and powertrain system work in parallel to achieve similar goals. The goal for Cal Poly – San Luis Obispo’s EcoMarathon vehicle for the 2015 competition is to analyze the unique operating mode that the powertrain undergoes during competition an

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3

Harvey, Daniel R. "Willans Line Modeling for Powertrain Analysis and Energy Consumption of Electric Vehicles." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104087.

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With electric vehicles becoming increasingly prevalent in the automotive market consumers are becoming more conscientious of total driving range. In light of this trend, reliable and accurate modeling methods are necessary to aid the development of more energy efficient vehicles with greater drivable range. Many methods exist for evaluating energy consumption of current and future vehicle designs over the US certification drive cycles. This work focuses on utilizing the well-established Willans line approximation and proposes a simplified modeling method to determine electric vehicle energy

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4

Li, Guoqiang [Verfasser]. "Optimal Control of Vehicles with Advanced Powertrain System in terms of Energy Efficiency / Guoqiang Li." Düren : Shaker, 2019. http://d-nb.info/1200807928/34.

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5

Malmberg, André, and Marcus Tibratt. "Mätning av utrustningseffektivitet : En fallstudie utförd på Gnutti Powertrain AB." Thesis, Linnéuniversitetet, Institutionen för teknik, TEK, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-19150.

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Syftet med studien är att få en förståelse för hur utrustningseffektiviteten kan mätas i ett producerande företag. Vår studie utförs på ett företag i Alvesta som heter Gnutti Powertrain AB som bland annat tillverkar precisionskomponenter till motorer. Genom att vi skapar en analysmodell utifrån studerade teorier beskrivs ett systematiskt tillvägagångssätt som slutligen ska leda till att syftet uppnås. Utifrån analysmodellen studeras och beskrivs först Gnutti Powertrain AB´s nuvarande tillvägagångssätt för att sedan jämföras och analyseras gentemot de studerade teorierna. Med hjälp av analysmod

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6

Kells, Ashley J. "Optimised control of an advanced hybrid powertrain using combined criteria for energy efficiency and driveline vibrations." Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/34429.

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This thesis discusses a general approach to hybrid powertrain control based on optimisation and optimal control techniques. A typical strategy comprises a high level non-linear control for optimised energy efficiency, and a lower level Linear Quadratic Regulator (LQR) to track the high-level demand signals and minimise the first torsional vibration mode. The approach is demonstrated in simulation using a model of the Toyota Prius hybrid vehicle, and comparisons are made with a simpler control system which uses proportional integral (PI) control at the lower level. The powertrain of the Toyota

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7

Nordström, Erik. "Advanced Modelling and Energy Efficiency Prediction for Road Vehicles." Thesis, Umeå universitet, Institutionen för fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-175358.

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This thesis presents a first real world case-study of road transport operations that use the COVER format, in which the driver and the vehicle are regarded as separate entities. This format enables a complex representation of the transport operation that potentially better describe reality compared to the conventional representation used in today’s certification tools. The representation of operations treated in this thesis is called Operating Cycles and has been used to fully describe three representative transport missions from a case-study truck. Stochastically generated operating cycles ha

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8

ZANELLI, ALESSANDRO. "Development of a Comprehensive 0-1D Powertrain and Vehicle Model for the Analysis of an Innovative 48 V Mild-Hybrid Diesel Passenger Car." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2842511.

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9

Arasu, Mukilan T. "Energy Optimal Routing of Vehicle Fleet with Heterogeneous Powertrains." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566150970771138.

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10

Feng, Tao. "Design and Analysis of Efficient Adaptive Algorithms for Active Control of Vehicle Interior Sound." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1490354549915601.

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11

Chang, Fengqi [Verfasser], Markus [Akademischer Betreuer] Lienkamp, Dieter [Gutachter] Gerling, and Markus [Gutachter] Lienkamp. "Improving the Partial Load Efficiency of Electric Powertrains by Silicon MOSFET Multilevel Inverters / Fengqi Chang ; Gutachter: Dieter Gerling, Markus Lienkamp ; Betreuer: Markus Lienkamp." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1206337664/34.

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12

Salomonsson, David, and Erik Eng. "A Component-based Model of a Fuel Cell Vehicle System." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176698.

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Improving the efficiency and performance of vehicle propulsion systems has always been desirable, and with increasing environmental awareness this has become increasingly topical. A particularly strong focus today is at fossil-free alternatives, and there is a strong trend for electrification. Hybrid powertrains of different types can bring benefits in certain aspects, and there is a lot of research and development involved in the making of a new powertrain. In this thesis, a complete powertrain for a fuel cell hybrid electric vehicle is modeled, with the intention of contributing to this tren

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13

Dreier, Dennis. "Assessing the potential of fuel saving and emissions reduction of the bus rapid transit system in Curitiba, Brazil." Thesis, KTH, Energi och klimatstudier, ECS, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176398.

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The transport sector contributes significantly to global energy use and emissions due to its traditional dependency on fossil fuels. Climate change, security of energy supply and increasing mobility demand is mobilising governments around the challenges of sustainable transport. Immediate opportunities to reduce emissions exist through the adoption of new bus technologies, e.g. advanced powertrains. This thesis analysed energy use and carbon dioxide (CO2) emissions of conventional, hybrid-electric, and plug-in hybrid-electric city buses including two-axle, articulated, and biarticulated chassi

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14

(11208897), Shubham Pradeep Agnihotri. "EFFICIENCY IMPROVEMENT ANALYSIS FOR COMMERCIAL VEHICLES BY (I) POWERTRAIN HYBRIDIZATION AND (II) CYLINDER DEACTIVATION FOR NATURAL GAS ENGINES." Thesis, 2021.

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<div>The commercial vehicle sector is an important enabler of the economy and is heavily dependent on fossil fuels. In the fight against climate change, reduction of emissions by improving fuel economy is a key step for the commercial vehicle sector. Improving fuel economy deals with reducing energy losses from fuel to the wheels. This study aims to analyze efficiency improvements for two systems that are important in reducing CO2 emissions - hybrid powertrains and natural gas engines. At first, a prototype series hybrid powertrain was analyzed based on on-highway data collected from its power

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15

Gully, Benjamin Houston. "Hybrid powertrain performance analysis for naval and commercial ocean-going vessels." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-08-6270.

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The need for a reduced dependence on fossil fuels is motivated by a wide range of factors: from increasing fuel costs, to national security implications of supply, to rising concern for environmental impact. Although much focus is given to terrestrial systems, over 90% of the world's freight is transported by ship. Likewise, naval warfighting systems are critical in supporting U.S. national interests abroad. Yet the vast majority of these vessels rely on fossil fuels for operation. The results of this thesis illustrate a common theme that hybrid mechanical-electrical marine propulsion systems

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16

Vaughn, James Roy. "A fundamental approximation in MATLAB of the efficiency of an automotive differential in transmitting rotational kinetic energy." Thesis, 2012. http://hdl.handle.net/2152/ETD-UT-2012-05-4980.

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The VCOST budgeting tool uses a drive cycle simulator to improve fuel economy predictions for vehicle fleets. This drive cycle simulator needs to predict the efficiency of various components of the vehicle's powertrain including any differentials. Existing differential efficiency models either lack accuracy over the operating conditions considered or require too great an investment. A fundamental model for differential efficiency is a cost-effective solution for predicting the odd behaviors unique to a differential. The differential efficiency model itself combines the torque balance equat

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17

Cordopatri, Antonio, Felice Crupi, and Giuseppe Cocorullo. "Powertrain ad alta efficienza per un veicolo etettrico a quattro ruote motrici indipendenti." Thesis, 2018. http://hdl.handle.net/10955/1806.

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18

(9192758), Jorge Leon Quiroga. "DIGITAL HYDRAULICS IN ELECTRIC HYBRID VEHICLES TO IMPROVE EFFICIENCY AND BATTERY USE." Thesis, 2020.

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The transportation sector consumes around 70% of all petroleum in the US. In recent years, there have been improvements in the efficiency of the vehicles, and hybrid techniques that have been used to improve efficiency for conventional combustion vehicles. Hydraulic systems have been used as an alternative to conventional electric regenerative systems with good results. It has been proven that hydraulic systems can improve energy consumption in conventional combustion vehicles and in refuse collection vehicles. The control strategy has a large impact on the performance of the system and studie

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19

Yang, Kang, and 楊康. "Development and Validation of Powertrain Hardware-in-the-Loop Simulation for Energy-Efficient Control Strategy of Plug-in Hybrid Electric Vehicle." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/29758682528815862102.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>105<br>This study focus on developing a stable, complete, and energy-efficient control strategy for specific PHEVs. Under different driving conditions and requests, the power units can drive the mobile efficiently, accomplish best performance and reduce the exhaust emissions. The control strategy would be very complicated to realize the functional requirements. There are increasing risks from systematic failures caused by logic defects and random hardware failures. To prevent failures and avoid hazards effectively before the mule car is assembled, and reduce the tim

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