Koncept konstrukce karoserie pro autobusy Hess
Future body structure concept for Hess busses
Typ dokumentu
diplomová prácemaster thesis
Autor
Grégoire Bis
Vedoucí práce
Kazda Lukáš
Oponent práce
Wunderlich Jan
Studijní obor
Advanced Powertrains (DD)Studijní program
Master of Automotive Engineering (DD)Instituce přidělující hodnost
ústav automobilů, spalovacích motorů a kolejových vozidelPráva
A university thesis is a work protected by the Copyright Act. Extracts, copies and transcripts of the thesis are allowed for personal use only and at one?s own expense. The use of thesis should be in compliance with the Copyright Act http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf and the citation ethics http://knihovny.cvut.cz/vychova/vskp.htmlVysokoškolská závěrečná práce je dílo chráněné autorským zákonem. Je možné pořizovat z něj na své náklady a pro svoji osobní potřebu výpisy, opisy a rozmnoženiny. Jeho využití musí být v souladu s autorským zákonem http://www.mkcr.cz/assets/autorske-pravo/01-3982006.pdf a citační etikou http://knihovny.cvut.cz/vychova/vskp.html
Metadata
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In the automotive industry, there is nowadays a constant need to make vehicles lighter. This is no exemption for bus manufacturers, especially for the Swiss company Carrosserie HESS AG, which specialises in the production of electric buses. The patented CO-BOLT system, that they have been using for more than thirty years to make the body of their buses, has so far been able to meet all the necessary requirements regarding the strength and the weight of the structure. This allows for high loads on the roof, especially considering the weight of the high-performance batteries that are positioned on top of the body of their buses to maximise the interior space and thus, the comfort of the passengers. However, as the need to save energy and produce the vehicles quickly becomes more present, HESS engineers are constantly looking for ways to improve their buses, especially by making the body lighter, stronger and faster to assemble. The aim of this thesis is to design a new CO-BOLT 2.0 model that could be used for HESS buses, by investigating the current CO-BOLT structure and finding innovative ways to optimise all these parameters in a way that keep the assembly cost efficient for the company. After having identified that the main area for improvement in the current CO-BOLT system lies in the way in which the aluminium profiles that make up the bus body are connected to each other, a study of different concepts for new connections, inspired by existing ways of connecting aluminium profiles, was undertaken. Following this study, one solution was selected. With new connection parts made in aluminium and manufactured with CNC machining, this new way of connecting profiles saves assembly time and weight in the body and it also limits excessive displacement of the profiles when they are subjected to high loads due to the weight on the roof of the bus. These qualities make the use of these connections for the CO-BOLT 2.0 model a starting point for a possible evolution of HESS bus bodies and in the improvement of their qualities. However, it would require a little more research than what is studied in this thesis to create a new body design that is fully exploitable for the company. In the automotive industry, there is nowadays a constant need to make vehicles lighter. This is no exemption for bus manufacturers, especially for the Swiss company Carrosserie HESS AG, which specialises in the production of electric buses. The patented CO-BOLT system, that they have been using for more than thirty years to make the body of their buses, has so far been able to meet all the necessary requirements regarding the strength and the weight of the structure. This allows for high loads on the roof, especially considering the weight of the high-performance batteries that are positioned on top of the body of their buses to maximise the interior space and thus, the comfort of the passengers. However, as the need to save energy and produce the vehicles quickly becomes more present, HESS engineers are constantly looking for ways to improve their buses, especially by making the body lighter, stronger and faster to assemble. The aim of this thesis is to design a new CO-BOLT 2.0 model that could be used for HESS buses, by investigating the current CO-BOLT structure and finding innovative ways to optimise all these parameters in a way that keep the assembly cost efficient for the company. After having identified that the main area for improvement in the current CO-BOLT system lies in the way in which the aluminium profiles that make up the bus body are connected to each other, a study of different concepts for new connections, inspired by existing ways of connecting aluminium profiles, was undertaken. Following this study, one solution was selected. With new connection parts made in aluminium and manufactured with CNC machining, this new way of connecting profiles saves assembly time and weight in the body and it also limits excessive displacement of the profiles when they are subjected to high loads due to the weight on the roof of the bus. These qualities make the use of these connections for the CO-BOLT 2.0 model a starting point for a possible evolution of HESS bus bodies and in the improvement of their qualities. However, it would require a little more research than what is studied in this thesis to create a new body design that is fully exploitable for the company.
Kolekce
- Diplomové práce - 12120 [429]