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All Journal Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering
Agus Harijono
Jurusan Teknik Mesin, Politeknik Negeri Malang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Industrial & Manufacturing Engineering Other

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Design and Experimental Evaluation of a Mid-Drive Electric Bicycle with BLDC Motor Bracket and Gearbox Integration Agus Harijono; Rizki Priya Pratama; Nicky Suwandhy Widhi Supriyanto; Ahmad Hanif Firdaus; 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.
APLIKASI HOME SOLAR SYSTEM SEBAGAI PENERANGAN UNTUK TPQ AL-MURTADHO DI KOTA MALANG Asrori Asrori; Agus Harijono; Akhmad Faizin; Agus Dani; Kriswitono Kriswitono
Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Vol. 8 No. 1 (2021): January
Publisher : Lembaga Penelitian, Penerbitan dan Pengabdian Masyarakat (LP3M) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/ppkm.v8i1.1499

Abstract

Lokasi TPQ-Al Murtadho terletak di RW 01, Wonokoyo, Kedungkandang, Kota Malang. Bangunan semi permanen ini didirikan secara swadaya oleh warga setempat. Selain berfungsi sebagai taman pendidikan Al-Quran (TPQ), bangunan ini juga dimanfaatkan untuk tempat musyawarah warga. Sistem penerangan yang murah dan mudah sangat relevan untuk diterapkan pada bangunan tersebut. Oleh karena itu dalam PkM ini dilakukan pelatihan singkat dan pemasangan sistem penerangan bertenaga surya (home solar system). Kegiatan yang dilakukan bersama pemuda karang taruna ini berlangsung selama dua hari. Pelatihan berupa presentasi mengenai listrik tenagasurya, yang dilanjutkan dengan perakitan dan pemasangan instalasi panel surya di TPQ Al-Murtadho. Hasil PkM adalah paket listrik tenaga surya yang terdiri dari : 1 unit panel surya; 1 unit solar charger controller; 1 unit baterai; 3 lampu LED dan peralatan aksesoris. Panel surya yang digunakan adalah 100 WP (Watt Peak) artinya daya maksimum yang mampu dibangkitkan oleh panel surya dalam 1 jam adalah 100 Watt. Jika sinar matahari dalam kondisi normal (cerah) diasumsikan 5 jam, maka panel surya mampu menghasilkan listrik sebesar 500 Wattjam. Sehingga dengan energi tersebut akan mampu untuk menyalakan lampu dengan daya 9 Watt pada 3 titik selama 9-10 jam.
Co-Authors Agus Dani Ahmad Hanif Firdaus Akhmad Faizin Asrori Asrori Kriswitono Kriswitono Nicky Suwandhy Widhi Supriyanto Nurhadi Nurhadi Rizki Priya Pratama Santoso Santoso