By combining traditional Internal Combustion Engine technology with electric motors, Koenigsegg Automotive AB can benefit from certain advantages that arise from this type of configuration, benefits that can then be implemented in their super sportscar, Regera. Example of an advantage is that the internal combustion engine can be scaled down, which gives a significant weight saving, but no further compromise on the overall effect as a result. Another example is that the electric motor's character of "direct power transmission" is used in a rapid acceleration where a conventional petrol engine has a certain delay. The purpose of the degree project has been to develop a concept for a torque-transmitting joint/coupling. The project is based on the fact that today's connection between the different motors tend to tune in on each other's natural frequencies, which under certain conditions leads to an amplitude increase in vibrations. This in turn gives off noise and in the long run this can lead to the joints becoming exhausted and eventually break down. Nevertheless, the company must also have the possibility to use the concept at other points where today they also use boom connections in the car. The work in this degree project has been limited to dealing only with the concept development process of the joint/coupling. The goal of the project is that the finished concept will satisfy all requirements determined by the product specification, this will be realized by a concept development process, CAD modeling and a simpler design analysis of the concept prototype. Based on the literature study, the main causes of the problem were identified. To find a suitable concept, five proposals were made for the design of the joint/coupling. The selected concepts were generated with inspiration from the frame of reference and the generation process, the concepts are illustrated in the report using models in CATIA V5. The result of the thesis was two theoretical concepts on a torque-transmitting joint between a shaft and a hub. The concepts AH1 and AH2 principles are intended to be incorporated in the car model and give rise to a functional improvement with less noise, a longer service life, better strength / weight ratio but at the same time be easy to assemble / disassemble in the car without having to make too extensive modifications. The goal of the concept development is for the concept to meet all requirements determined by the final product specification. / Genom att kombinera traditionell förbränningsmotorteknik med elmotorer kan Koenigsegg Automotive AB dra nytta av vissa fördelar som uppkommer med den här typen av konfiguration, fördelar som sedan kan implementeras i deras supersportbil, Regera. Exempel på en fördel är att förbränningsmotorn kan skalas ner, vilket ger en betydande viktbesparing, men ingen vidare kompromiss på den totala effekten som resultat. Ett annat exempel är att elmotorns karaktär av ”direkt kraftöverföring” kan nyttjas vid en häftig acceleration där en konventionell bensinmotor har en viss fördröjning. Syftet med det här examensarbetet har varit att utveckla ett koncept för ett vridmomentsöverförande förband/koppling. Projektet grundar sig i att dagens förband mellan de olika motorerna tenderar att stämma in på varandras egenfrekvenser, vilket under vissa förhållanden leder till en amplitudökning av vibrationer. Detta ger i sin tur ifrån sig missljud och i förlängningen kan detta leda till att förband utmattas och så småningom leda till brott. Likväl ska företaget även ha möjligheten till att använda konceptet på andra punkter där de idag också använder sig utav bomförband i bilen. Arbetet i detta examensarbete har avgränsats till att enbart behandla konceptutvecklingsprocessen av förbandet/kopplingen. Målet med projektet är att det färdiga konceptet skall tillfredsställa samtliga krav bestämda av produktspecifikationen, detta ska realiseras av en konceptutvecklingsprocess, CAD-modellering och en simplare konstruktionsanalys av konceptprototypen. Utifrån litteraturstudien identifierades de främsta orsakerna till problemet. För att finna ett lämpligt koncept framställdes fem förslag på utformningen av förbandet/kopplingen. De utvalda koncepten genererades med inspiration från referensramen och genereringsprocessen, koncepten illustreras i rapporten med hjälp av modeller i CATIA V5. Resultatet av examensarbetet blev två teoretiska koncept på ett vridmomentsöverförande förband mellan en axel och ett nav. Koncepten AH1 och AH2 principer är tänkt att inkorporeras i bilmodellen och ge upphov till en funktionsförbättring med mindre buller, en längre livslängd, bättre förhållande mellan styrka/vikt men samtidigt vara lätt att montera/demontera i bilen utan att behöva göra allt för omfattande modifikationer. Målet med konceptutvecklingen är att konceptet skall bemöta samtliga krav bestämda av den slutgiltiga produktspecifikationen.

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Nufotec is a company that works with mechanical design and product development. The company has worked with a Tranås based company called Inzile in the past. Inzile has built small electrified trucks in the past but are now going to start development of electrified resort vehicles. In 2022 Inzile was acquisitioned by a Spanish company which got Inzile to change track and because they had never built a vehicle like this before, Nufotec was tasked to help. Nufotec works with many parts on the project and the large project has been scaled down to smaller parts, which are to be combined to generate a good final product. The project group who writes this study has been assigned a part problem on the large project. The part problem which this study points to, is to join a superstructure of aluminum and a galvanized steel structure. The result which is to be presented is two to three final concepts where joining method, corrosion and loads are considered.  The study revealed a large risk of corrosion and because of this a decision was made to eliminate this risk, the decision was to isolate all dissimilar metals from each other. Different joining methods was considered in the study, and it appeared that bolted joints were the best. To test the different concepts, they were put through FEM simulations. This shows where stress and deformation will occur and gives an estimate of what the concepts can withstand. After the simulations, the concepts went into an elimination matrix and the two remaining are the final concepts.

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<p>This work is a product development of a product which facilitates enduro drivers swallowing fluid while driving. My own experience of the problem and a custom survey gave me some frames and requirements of how such a product would look. To obtain the different concepts the method of brainstorming was used where I outlined the various proposals. The basic concept was that some kind of pump would build pressure in the liquid and when the user opens the nozzle the liquid will come out without the need to use the mouth to suck. The screening phase consisted of two steps. The first step, a Pugh matrix where I varied reference concepts and four of the six proposals were eliminated. During the second screening phase, two test models were built and I tried out which one I would eliminate. The concept that was left was a simple pump, powered by a battery of9-volt. The pump starts when the user opens the nozzle and stops automatically when the nozzle is closed.  This is controlled by a hose which swells when the pump is running and the nozzle is closed. Then the hose begins to swell and affects a small micro switch that breaks the voltage supply to the pump. A check valve makes sure that the liquid remains in the hose and the pump will remain neutral until the re-opening of the nozzle and the hose shrinks. </p>

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Denna rapport går igenom projektet för ett inomhusodlingssystem med automatiskbevattning - Octagarden. Områden som presenteras är produktundersökning,skissning och sållning, materialval, kritisk granskning, utvärdering och slutsatsmed mera. Idén gick ut på att ta fram odlingsmöjligheter för människor medbegränsad boyta. Resultatet blev ett modulärt och användarvänligt system medoptimerad areaupptagning och därmed lämpat för små lägenheter. / This report is presenting the project of an indoor farming system with automaticwatering – Octagarden. Areas that are covered in this report are product research,sketching and screening, choice of materials, result evaluation, and conclusion etc.The concept was to develop farming options for those with limited area of living.The result is a modular and user friendly system with optimized occupation ofspace, and therefore suitable for small apartments.

Purpose The aim of the thesis is to aid the project Ecoist in further developing a chassiswhich needs be manufactural with reliable dimensions to prepare for a small pilotbatch of units. Dimensions are intended to fluctuate at a minimum to greatly reduceorcompletely remove the need for correcting actions during assembly. Approach To create a viable and functional product proposal, a thorough investigation of legalrequirements and previously published material regarding chassis development was conducted. This information was then translated and integrated with the customer requirements provided during the initial consultation at the company. A draft of the intended product was designed through different CAD-software based on thisinformation, which then in turn was further developed by multiple feedback sessions with the project owner. Findings The resulting product features a concept primary designed through sheet-metalbased solutions, but also includes a lesser amount of complementary solutionsbased on pre-fabricated square pipes and a ready-made clamp system which was integrated into the structure, for economic benefit. Limitations The information acquired from the investigation of legal requirements have been regarded to as a foundation to improve the product quality, with respect to e.g. user’s functional- and perceived safety, and to pioneer for future certification. However, due to the business concept and the available timeframe, an internationalcertification for making the vehicle eligible for the common commercial marketwas omitted. Furthermore, the FEM verification of the final product was postponed to future work resulting from inadequate software licensing levels, which disabled full access to the required functions. The safety-measures and dimensions aredesigned at the discretion the previous experience of the project owner.