Plug in battery electric car : design and integration of motor to rear differential mounting

• Main Author: Mohamed Syarif Bin Mohamed Ruslan Hadi
• Other Authors: Ng Heong Wah
• Format: Final Year Project
• Language: English
• Published: 2014
• Subjects: DRNTU::Engineering
• Online Access: http://hdl.handle.net/10356/60372
• Institution: Nanyang Technological University

This is a continuation of the Plug-In Battery Electric Vehicle (BEV) project from Team 2, year 2012/2013. The main objectives of this research and development project are to reduce harmful gas emissions and reduction in dependence on fuel import, for natural resources scarce in Singapore. Hence Nanyang Technological University (NTU) is determined to play its role in contributing to this industry and hence develop its own Battery Electric Vehicle (BEV). Expected duration for the project since it pioneered in 2012 is 3 years. The author’s role in Team 3, year 2013/2014, for the BEV project is to design and integrate the motor into the rear differential. The initial phase consists of performance studies on the Netgain Warp9 DC Motor and the Evnetics Soliton Jr controller and how these components affect the transmission system of the BEV. Subsequently, the author finalises the BEV’s performance specifications and limitations by obtaining the final speed reduction ratio of the transmission system. The second phase of the project includes the design of the transmission plate to hold the Warp9 motor and the gearbox and completing the whole transmission assembly so that power from the motor is able to be transmitted to the wheels and push off the BEV. The final phase consists of fabrication and modification of the components to optimise the transmission drivetrain for the rolling chassis. Future work to requirements is discussed in the last segment of this report.