RANCANG BANGUN MOBIL LISTRIK KAMPUS UNAND

Fadhillah, M.Ahlan Fadhillah (2025) RANCANG BANGUN MOBIL LISTRIK KAMPUS UNAND. S1 thesis, Universitas Andalas.

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Abstract

This final project aims to design, build, and test the performance of a 3000 W electric vehicle that is specially designed to operate on the hilly topography of Universitas Andalas. The background of this study is the need for a safe, efficient, and environmentally friendly campus transportation system, considering the campus road conditions that include uphill and downhill roads, as well as the importance of improving internal transportation safety. The research methodology includes design, prototype development, and vehicle performance testing. The design process was carried out by preparing Design Requirement Objectives (DRO), Objective Tree Diagram (OTD), and House of Quality (HoQ), and by applying the Design for Manufacturing and Assembly (DFMA) method to ensure ease of production and assembly. The electric vehicle prototype uses a 3000 W BLDC motor, a 72 V 40 Ah lithium-ion battery, and a ladder frame chassis with a capacity of four passengers. The chassis strength analysis was performed using Finite Element Analysis (FEA) with static loading, which showed a maximum Von Mises stress of 9.352 MPa, still below the material yield strength, so the chassis is considered safe. Performance testing was conducted in the Universitas Andalas campus area, including speed, driving range, and hill-climbing tests with variations in passenger mass. The test results show that an increase in passenger mass has a significant effect on vehicle performance. The maximum vehicle speed decreases as the load increases. These results indicate that the designed 3000 W electric vehicle can operate well on the Universitas Andalas campus topography, but its performance is strongly influenced by passenger mass.

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