Optimization tool for EV-transmissions

Examensarbete för masterexamen

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12380/256965
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Type: Examensarbete för masterexamen
Master Thesis
Title: Optimization tool for EV-transmissions
Authors: Barreng, Anton
Abstract: Due to the increasing concern for fossil fuel powered vehicles negative impact on the environment car manufacturers are looking more and more towards alternative drivetrains. One of the solutions is to use an electric motor also known as an e-machine. To be able to utilize an e-machine efficiently a transmission is needed between the e-machine and the driveshafts connecting to the wheels. The design process for this type of transmission is not as well mapped out as for a conventional transmission. The aim of the thesis work was to create a tool that aids the initial part of the design process. Matlab programing language was used to create a program that uses the basic parameters known in the start of a transmission project to provide a recommendation on where initial development should be started. The tool provides a variety of solutions ranked by different criteria selected by the user. The program is function based, starting by creating 2D layouts, calculating gear widths and progressing by calculating bearing forces and bearing sizes. Since the aim of the tool was to provide a quick estimation of the optimal layout, simplified calculations were used in the function files. The accuracy was verified using two methods in the Masta transmission program and the result showed that the transmissions recommended by the tool are optimized.
Keywords: Transport;Hållbar utveckling;Maskinteknik;Farkostteknik;Transport;Sustainable Development;Mechanical Engineering;Vehicle Engineering
Issue Date: 2018
Publisher: Chalmers tekniska högskola / Institutionen för mekanik och maritima vetenskaper
Chalmers University of Technology / Department of Mechanics and Maritime Sciences
Series/Report no.: Examensarbete - Institutionen för mekanik och maritima vetenskaper : 2018:96
URI: https://hdl.handle.net/20.500.12380/256965
Collection:Examensarbeten för masterexamen // Master Theses

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