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All Journal Briliant: Jurnal Riset dan Konseptual Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Abdi Dosen : Jurnal Pengabdian Pada Masyarakat MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Jurnal Mesin Nusantara Panrannuangku Jurnal Pengabdian Masyarakat Bulletin of Science Education KOMET
Harijono, Agus
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Design and Experimental Evaluation of a Mid-Drive Electric Bicycle with BLDC Motor Bracket and Gearbox Integration Harijono, Agus; Pratama, Rizki Priya; Supriyanto, Nicky Suwandhy Widhi; Firdaus, Ahmad Hanif; Nurhadi, Nurhadi; Santoso, Santoso
MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Vol 7 No 3 (2025): Motivection : Journal of Mechanical, Electrical and Industrial Engineering
Publisher : Indonesian Mechanical Electrical and Industrial Research Society (IMEIRS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/motivection.v7i3.484

Abstract

Electric bicycles with mid-drive systems provide better weight balance and performance, particularly on uphill terrain. However, their production cost is generally higher than hub-drive systems, limiting accessibility for wider users. This study aims to develop a cost-effective mid-drive conversion system by modifying a hub-drive e-bike using a custom steel bracket and an integrated gearbox, and to evaluate its power performance and energy efficiency. The prototype was powered by a 60V 15Ah LiFePO₄ battery and tested under laboratory and road conditions, including no-load, flat-road, and uphill tracks (5°–15° slopes). Data were collected using a tachometer, GPS, and PZEM-015 module to record speed, voltage, current, and power consumption. The motor required 659 W during acceleration from 0–10 km/h, decreased to 183 W at 19 km/h, and increased to 867 W at 39 km/h. Under a 15° incline, the e-bike maintained 15 km/h with 1120 W of power. Distance-based tests (2.08–4.07 km) showed stable energy consumption between 21–26 Wh/km, increasing proportionally with rider weight. The gearbox-assisted mid-drive conversion improved torque distribution, transmission efficiency, and energy performance, providing a practical and affordable alternative for developing efficient electric bicycles.
Co-Authors Ahmad Hanif Firdaus Akhmad Faizin AM Mufarrih Amrullah, Utsman Syah Amrullah, Utsman Syah Asrori Asrori Dani, Agus Etik Puspitasari, Etik Harahap, M. Zusriansyah Fahrudin Hariyanto, Moh. Nasir Hidayatinnisa’, Nurul Khambali Khambali Kris Witono Nanang Qosim Nicky Suwandhy Widhi Supriyanto Nurhadi Rizki Priya Pratama, Rizki Priya Samsul Hadi SANTOSO SANTOSO Suyanta Suyanta Viyus, Vinan Zakki Fuadi Emzain