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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
131

Cost-effective manufacturing process for plastic components in automotive industry

Bergling, Gustav, Nair, Vishnu January 2020 (has links)
A seemingly increasing trend in the automotive industry is the prevalence of hybrid and electric vehicles. For Lear Corporation, a global automotive supplier of seating and electronic systems, this has caused a decrease in quantity of their products as these types of vehicles are manufactured at lower rates of volumes. An essential element of the electronic system provided by Lear is the wire harness. The wire harness is fastened and protected through plastic components called channels or brackets. These channels are fabricated through injection molding, one of the most common plastic manufacturing processes which offer many benefits. However, injection molding entails high upfront costs which are not suitable for the lower scales of production Lear expect. This prompted the company to seek other alternative processes and thus the idea of this thesis arose.The purpose of the thesis was to identify, evaluate and present alternative manufacturing processes that could potentially replace the current process. Furthermore, the possibility of decreasing the costs of the current process and making it viable for low volume production was explored.The study presented a total of nine common plastic manufacturing processes and subsequently performed a screening where processes deemed incompatible, in terms of aspects such as part complexity, size, volume and cost, were dismissed and processes deemed compatible in relation to the desired application were evaluated further. The processes kept for further examination were injection molding and additive manufacturing.Injection molding and additive manufacturing were evaluated further and ultimately cost estimates for each process were requested to manufacturers in order to make a cost analysis and further study the feasibility of respective process.The cost estimates and subsequent cost analysis indicated that the ideal and most cost-effective option for Lear would be changing the injection molding tool to MUD, aluminum or steel grade 738. This allows Lear to utilize the benefits of injection molding while decreasing the mold cost and upfront costs for the injection molding process substantially. Another proposal presented was to merge injection molding and additive manufacturing in a method called bridge production. This would allow Lear to increase flexibility and reduce lead time.
132

Evaluation of different machine learning models for the prediction of electric or hybrid vehicle buyers and identification of the characteristics of the buyers in the EU

Chowdhury, Ziaul Islam, Bensenousi, Iskanter January 2020 (has links)
The main goal of this thesis is to evaluate different machine learning models in order to classify buyers of an electric or a hybrid vehicle and to identify the characteristics of the buyers in the European Union. Machine learning algorithms and techniques were adopted to analyze the dataset and to create models that could predict, with a certain accuracy, the customer’s willingness to buy an EV. Identification of the characteristics of the buyers were based on the identified most important features from the machine learning models and statistical analysis. The research consisted of exploratory and explanatory methods (mixed method) with quantitative and qualitative techniques. Quantitative technique was applied to convert categorical values to ordinal and nominal numeric values, to establish cause and effect relationship between the variables by using statistical analysis and to apply machine learning methods on the dataset. The quantitative results were then analyzed by using quantitative and qualitative techniques in order to identify the characteristics of the buyers. The data analytics part relied on a publicly available large dataset from the EU containing transport and mobility related data. From the experiments with logistics regression, support vector machine, random forest, gradient boosting classifier and the artificial neural network it was found that ANN is the best model to identify who won’t buy an EV and gradient boosting classifier is the best model to identify who would like to buy and EV. ML based feature importance identification methods (MDI, permutation feature importance) were used to analyze the characteristics of the buyers. The major buyer’s characteristics found in this thesis are environmental concern, knowledge on car sharing, country of residence, education, control traffic, gender, incentive, education and location of residence. Authors have recommended green marketing as the potential enablers towards a faster and larger adoption of electrical vehicles in the market as environmental impact was found as the most significant behavior of the buyer. Finally, for the future researchers, the authors have recommended fine-tuning the algorithms extensively in order to achieve better accuracy and to collect primary data based on the most important features identified in this thesis.
133

Computer-Assisted Troubleshooting for Efficient Off-board Diagnosis

Warnquist, Håkan January 2011 (has links)
This licentiate thesis considers computer-assisted troubleshooting of complex products such as heavy trucks. The troubleshooting task is to find and repair all faulty components in a malfunctioning system. This is done by performing actions to gather more information regarding which faults there can be or to repair components that are suspected to be faulty. The expected cost of the performed actions should be as low as possible. The work described in this thesis contributes to solving the troubleshooting task in such a way that a good trade-off between computation time and solution quality can be made. A framework for troubleshooting is developed where the system is diagnosed using non-stationary dynamic Bayesian networks and the decisions of which actions to perform are made using a new planning algorithm for Stochastic Shortest Path Problems called Iterative Bounding LAO*. It is shown how the troubleshooting problem can be converted into a Stochastic Shortest Path problem so that it can be efficiently solved using general algorithms such as Iterative Bounding LAO*.  New and improved search heuristics for solving the troubleshooting problem by searching are also presented in this thesis. The methods presented in this thesis are evaluated in a case study of an auxiliary hydraulic braking system of a modern truck. The evaluation shows that the new algorithm Iterative Bounding LAO* creates troubleshooting plans with a lower expected cost faster than existing state-of-the-art algorithms in the literature. The case study shows that the troubleshooting framework can be applied to systems from the heavy vehicles domain.
134

Making the invisible visible: a study on ingredient branding in the automotive industry : An experimental study in the automotive industry

Elamir, Sara, Licheri, Davide January 2020 (has links)
In a competitive environment, ensuring to provide high quality can be considered as one of the key objectives of the organizations. For guaranteeing that, the firms should communicate efficiently regarding quality, in order to influence the consumers´ perception towards quality. A high perception of quality requires a strong brand, which should guide the consumers in their choice and let them to refuse the competitors. Among the different strategies that can be put in place by the firms, co-branding is a joint strategy that is trying to combine the value of both brands in a synergy effect. Ingredient branding is a type of branding that entails the use of a component from one brand in a product of another brand, moreover these stimuli that are influencing the consumers´ behaviour. This stimulus will impact the quality perception of the brand and the consumers´ willingness of choosing the brand, therefore the brand would be preferred to other brands and make the consumer be loyal to the host brand. This study was conducted by employing a quantitative approach based on an experimental design with a focus on the automotive industry. A survey was distributed among students and young professionals, which are considered as actual or prospective car buyers. A total of 116 responses contributed to the sample of this research. The findings show that an ingredient brand with high perceived quality can increase the perceived quality of the host brand and that the increased quality of the host brand can lead to brand loyalty.
135

Development of dynamic managerial capabilities to facilitate an automotive company’s digital transformation : A case study at Volvo Group

Johansson, Frida, Oberhauser, Celina January 2023 (has links)
Background: IT has been reshaping competition and strategy for decades. However, the current wave of IT-driven competition is distinct from previous ones. As new digital technologies have a disruptive effect, organizations must adapt to remain competitive. Digital transformation particularly affects the automotive industry as digitalization has become the most important phenomenon since the creation of the industry. Managers in automotive companies need to thus become active in implementing strategic changes and utilize digital opportunities. For this, managers must apply their dynamic managerial capabilities to sense and seize digital opportunities and to transform the company. Research Problem: Despite the wide literature on dynamic capabilities, dynamic managerial capabilities, and digital transformation, research on these three concepts’ interlinkages is underdeveloped. There is furthermore little evidence on how the interaction of the underpinnings of dynamic managerial capabilities at an organizational level affect strategic change and performance in a changing environment. Research Purpose: The purpose of this study is to deepen the understanding of an automotive company’s development of dynamic managerial capabilities to facilitate its digital transformation. It aims at showcasing how managerial cognition, social capital, and human capital are relevant to sense, seize, and transform for digital transformation. A framework is developed to visualize the respective interlinkages. Research Question: How can dynamic managerial capabilities facilitate an automotive company’s digital transformation? Research Method: This study uses a qualitative approach. An in-depth case study aiming for theory-elaboration was conducted at Volvo Group. Data was purposefully collected through interviews, observations, and internal documents, and then analyzed through a thematic analysis. Conclusion: This paper’s main contribution lies in the application of dynamic managerial capabilities in the context of digital transformation. Our findings suggest that all dynamic managerial capabilities are important for sensing, seizing, and transforming for digital transformation. We find managerial cognition to be vital throughout all the dynamic capabilities steps, whereas managerial social capital has strong influence on the sensing stage. Managerial human capital in terms of industry experience plays a major role for the seizing and transforming stages of digital transformation. Our results indicate that it is important to build teams with complementing dynamic managerial capabilities to facilitate organizational digital transformation.
136

Investigating changes in sustainability disclosure quality: A study on large European auto manufacturers

Aspnäs, Emil, Bergman, Marcus January 2023 (has links)
Large European auto manufacturers are responsible for being at the forefront when the industryis advancing towards a more sustainable practice. However, there is a problem with assessing companies´ sustainability performance because it can be camouflaged through low-quality reporting, preventing stakeholders from scrutinizing companies’ commitment to sustainable development. Instead, a substantive reporting practice where companies show their actualsustainability performance through high-quality reporting is preferable. Nonetheless, existing research fails to explain the changes in sustainability reporting practices, as there is limited research focusing on European auto manufacturers and much of the research only covers one specific point in time. This thesis will investigate changes in the disclosure quality of 4 large European auto manufacturers over five years and answer how their sustainability reporting practices have changed by analyzing 20 sustainability reports through quantitative content analysis. The findings signal a move toward more substantive sustainability reporting where two companies significantly increased, and two had minor advancements. It indicates less camouflaging of sustainability performance which is crucial to promote sustainable development and provide incentives to transition towards sustainable practices. However, the information did not become more accurate, which caused concerns as auto manufacturers may have found other ways to camouflage sustainability performance.
137

Sökning och bevakning av teknik inom utvecklingsprocessen / Search and monitoring of technology within the development process

Berg, Erik, Linde, Sofia January 2023 (has links)
På grund av teknikens snabba utveckling behöver företag utveckla sina förmågor inom bevakning och analysering av ny information för att på så sätt få eller bevara försprånget gentemot sina konkurrenter. Många företag har en bristande strategi när det kommer till marknadsanalyser och företagen behöver idag förbättra sin utvärdering av verksamheten, marknaden och konkurrenterna. Syftet med detta arbete är att undersöka processen då ett företag ska hitta, studera och integrera ny teknik. Vidare ämnades det undersökas vilka utmaningar som finns för dessa processer och vilka metoder som används för att ta sig runt dessa. Frågeställningarna besvarades genom att inledningsvis upprätta ett teoretiskt ramverk av referenser och undersöka ämnet genom litteraturforskning för att få en grundläggande förståelse. Teorin jämfördes med en empirisk studie baserad på semistrukturerade intervjuer av verksamma på ett företag inom fordonsindustrin. Resultatet av studien visade att respondenterna inte använder sig av en bestämd systematik för omvärldsanalys och insamling av information utan snarare baserar sina metoder på det som passar bäst individuellt. Det finns utmaningar för nyanställda att hitta sin egen metodik och det finns även andra utmaningar såsom att specifika problem är svåra att hitta information om samt att företagets sekretess försvårar informationssökningen. För att effektivisera omvärldsanalysen och informationssökningen beställer företaget in produkter från konkurrenter som analyseras. Det tas även hjälp av intern expertis för att få utökad kunskap inom ett visst ämne. AI kan komma att bli ett viktigt verktyg för insamling av information i framtiden men är idag ej tillämpbart inom vissa organisationer på grund av företagssekretess. / Due to the rapid development of technology, companies need to develop their capabilities in monitoring and analyzing new information in order to gain or maintain an advantage. Many organisations lack strategies when it comes to market analysis and are in need to improve their evaluation of business, market and competitors. The purpose of this work is to investigate the process when an organisationsearches for, studies and integrates new technology. Furthermore, the work aims to investigate which challenges exist for these processes and which methods are being used to ease these challenges. The questions were answered by initially establishing a theoretical framework of references and researching the topic through literature research to gain a basic understanding. The theory was then compared with an empirical study in the form of views from interviews of employees at a company in the automotive industry based on a semi-structured interview survey. The results of the study showed that the respondents do not use a specific system for intelligence analysis and gathering information, but rather base their methods on individual preferences. There are challenges for new employees to find their own methodology and other challenges such as specific solutions are difficult to find and that the company's confidentiality requirements obstruct the search for information. In order to streamline the analysis of the environment and the search for information, the company orders products from competitors that are analysed. Internal expertise is also used to expand their knowledge within a certain subject. AI may become an important tool for gathering information in the future, but as of today it may still be an issue using it as a tool due to corporate confidentiality.
138

Framtagning avproduktivitetshöjande åtgärder på produktionslina Scania : Utvärdering samt rekommendationer baseratpå produktivitetsmått och nulägesanalys / Development of productivity raising measures forproduction line Scania

Börjesson, Sara, Fogelström, Kim January 2020 (has links)
Kamaxeln är en mekaniskt roterande komponent som återfinns i de flesta motorer och somtillverkas på avdelningen DM på Scania Södertälje. Scania lägger stor vikt vid produktivitet och trots goda resultat når linan ännu inte upp till de av företaget uttalade produktivitetsmålen. Arbetets syfte var att undersöka detta och föreslå produktivitetshöjande åtgärder. Centralt för arbetet var de tre måtten OPE, OEE samt JPH. De två tidigare är mycket lika varandra och är representationer av hur väl linan producerar mot sin teoretiska kapacitet medan det senare är ett mått på denna kapacitet. Vikt lades även vid principerna för Scania Production System verktyg så som Lean och Value stream mapping. Det nuvarande systemet för loggning av störningar diskuteras även mot det under implementering. De tre måtten OPE, OEE och JPH beräknas för de senaste 12 månaderna. Utöver detta genomförs verkstadspraktik, litteraturstudie och intervjuer för att sammanställa den information som krävs för analysen. Data från de olika källorna sammanställs för att sedan diskuteras i relation till produktiviteten. Resultaten tyder på tre tydliga slutsatser. Mer tid än nödvändigt planeras för produktionen vilket leder till lågt utnyttjande av produktionstiden. Standard för ett flertal arbetsmoment är otillräcklig eller efterföljs ej vilket försvårar analys och sänker produktivitet. Därutöver kommer det nya systemet förenkla loggning av störningar förutsatt att tydlig standard sätts upp för hur detta ska användas. Slutligen rekommenderas att man höjer planeringskapaciteten, att standard ses över och omarbetas samt att åtgärder tas för att säkerställa att det nya systemet utnyttjas på bästa sätt. Det föreslås även framtida arbete att göra om analysen efter att det nya systemet implementerats samt om planeringskapaciteten höjs. / The camshaft is a mechanically rotating component found in most engines and manufacturedat one of the lines at Scania Södertälje. Scania highly values productivity and despite some of the better results the Camshaft-line still does not live up to the productivity goals of the company. The purpose of this thesis project was to evaluate why that is and to bring forth suggestions of how higher productivity can be achieved. Integral to the work were the three productivity measures OPE, OEE and JPH. The first two measure the productivity of the line against its capacity while the latter measures said capacity. Actions were also taken to ensure that the Scania Production System guidelines were followed and tools such as Lean and Value Stream Mapping were used to help guide the work. The current software for logging stops was also analysed and discussed in relation to the new system currently undergoing implementation, EBBA. The three productivity measures OPE, OEE and JPH were calculated for the last twelve months. The information received from this was then supplemented with workshop practice, a literature study as well as interviews with Scania employees. All data was compiled and discussed in relation to its effect on productivity. The result was three clear conclusions. More production time than necessary is planned, resulting in low utilization. Many of the day to day standards are not sufficient or respected, resulting in difficulties in analysis and lower productivity. Also, the new system will simplify logging of stops assuming clear standards are set up for how this is to be used. Finally recommendations are made that the planning capacity is increased, that the standards are reworked and efforts are made to ensure the new system is used to its full potential. It is also suggested that further work is done by redoing the analysis after implementation of the new system as well as if the planning capacity is increased.
139

The development of a generic outsourcing decision model with validation through automotive industry case studies.

Bowles, David January 2009 (has links)
Aims and Objectives of Research. 1. To develop a ¿one stop¿ generic decision making matrix (Outsourcing Decision Model) that provides the necessary clarity into defining whether an organisation should proceed with an outsourcing initiative or not. This would be based upon a distillation of existing models and reviewed literature. With the recognition that there may be subsequent advantages following the process, the model will include not only these but a means of evaluation in order to ascertain whether or not an outsourcing initiative may be or was successful or not. This latter aspect must logically be viewed as very important as an outsourcer must be aware of the benefits and also whether or not they were achieved. In addition, the model would include sufficient guidance with potential supporting metrics and their application. 2. To validate the Outsourcing Model through specific case studies using a triangulated approach in comparing the selected automotive OEM with some of its major competitors. Within the context of the case study, the research would also attempt to understand how the subject outsourcing organisation compares to its major competitors in equivalent comparable products and whether or not this reflects in the success of these companies. This case study not only provides a means of reinforcing the remaining case studies by using a triangulated method of application to the research developed outsourcing decision model but also provides a deeper understanding of the context of the supplier and competitors within the industry. 3. To test, via case studies the effect of specificity relating to the outsourced end product rather than the outsourced entity. This aspect provides the deepest application to the researched outsourcing decision model and therefore the most comprehensive validation. In addition, because the case studies are retrospective, they have the benefit of providing data to establish the level of success. This would be very important, particularly as it would enable a focus on particular criteria that failed to highlight a particular outcome and therefore provide a chance to make amendments. Low specificity is a well established criterion in defining an outsourced entity which is reflected within the body of the research. The further extension of this theory towards the outsourcing of and outsourced entity related to an established previously outsourced commodity is a new concept with no identifiable literature or evidence relating to its importance. The fact that it provides an element within the research that is potentially unique and carries no extra task burden it has been captured as an added element within the two important validation case studies: 4. To evaluate if outsourcing performance can be enhanced through the introduction of a second supplier into a single supplier sourcing situation. Subsequent to outsourcing, this aim and objective focuses upon the possibility of enhancing performance through the introduction of a second supplier. Particularly in cases whereby expertise may have been lost from an outsourcer, ultimate results relating to the outsourced entity may be compromised through either opportunism or diminished supplier performance. Whether these aspects are deliberate or unintended, an outsourcer should have some means of mitigating this risk. This mitigation may potentially be enabled through the use of a second supplier in order to provide a degree of competition. 5. To identify a link between Specificity, Commonality and Platform Sharing. The Author's professional role was very heavily based around the modern practices within the Automotive Industry. Outsourcing, platform sharing and commonality are well publicised strategies that have been adopted by various car manufacturers in order to gain efficiencies. Research was carried out in order to provide a better understanding of these strategies and to establish if there is any link between them. A confirmation of any linkages may then provide potential for establishing greater synergies between them. / Ford Motor Company Ltd.
140

”Jag vill inte vara den kvinnliga chefen, jag vill bara vara chef” : En kvalitativ studie om kvinnor i chefsroller inom motorbranschen

Göthlin, Kajsa, Haag Rydell, Alice January 2023 (has links)
There are more men than women who hold managerial positions in the Swedish labor market. Leadership has historically been associated with masculinity. Previous research has shown that, as a consequence female managers in male-dominated industries need to display masculine attributes in order to be accepted as leaders. The automotive industry is an excellent case of such an industry, while research has shown that the car is strongly associated with masculinity. Therefore, we will use the automotive industry as our area of study. The purpose of the study is to investigate the opportunities and challenges that female managers face in the industry, as well as their experience of the social climate. To collect empirical data, we used semi-structured interviews with some of the most powerful female managers in the Swedish automotive industry. The result is analyzed based on West and Zimmerman’s “Doing gender” theory, and Goffman's dramaturgical perspective and his concepts of facade and regions. The result is also analyzed based on Kanter's frequency structure and her concept of homosocial reproduction. The study's results show that challenges in the female managerial role can include expectations, homosocial reproduction, and affirmative actions. The result also shows that affirmative actions can create opportunities. Other opportunities the female managers face are visibility and the potential to introduce soft values in the automotive industry. Finally, the study shows that the social climate in the automotive industry has changed over the years. / Det är betydligt fler män än kvinnor som besitter chefspositioner på den svenska arbetsmarknaden och ledarskap har historiskt associerats med maskulinitet. Tidigare forskning belyser att en följd av detta har blivit att kvinnliga chefer inom mansdominerade branscher behöver uppvisa maskulina attribut för att bli accepterade som ledare. Forskning belyser även att bilen ses som en maskulin teknologi. Därför anser vi det intressant att ha motorbranschen som studieområde. Syftet med studien är att undersöka vilka möjligheter och utmaningar kvinnliga chefer inom motorbranschen upplever, samt deras upplevelse av det sociala klimatet. För att samla in empiri genomfördes semistrukturerade intervjuer med de mäktigaste kvinnliga cheferna inom motorbranschen. Resultatet analyseras utifrån teorin Doing gender, Goffmans Dramaturgiska perspektiv och hans begrepp fasad och regioner, samt Kanters frekvensstruktur och begreppet homosocial reproduktion. Studiens resultat belyser att utmaningar i den kvinnliga chefsrollen bland annat kan vara förväntningar, homosocial reproduktion och kvotering. Ett annat resultat är att kvotering kan skapa möjligheter. Andra möjligheter de kvinnliga cheferna möter är synlighet och potentialen till att implementera mjuka värden i motorbranschen. Slutligen kommer studien fram till att det sociala klimatet inom motorbranschen har förändrats genom åren.

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