Comparison of Brake Cooling System on Bus: Simulation and Evaluation of Natural vs Forced Air through Machine Learning Processing Gunadi Gunadi, Agus Widyianto, Yosef Budiman, Kurniawan Sigit Wahyudi, I Wayan Adiyasa, Naufal Annas Fauzi, Zainal Arifin, Nu Nu Tun Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2025 Intense braking can cause heat accumulation that can reduce the braking system’s efficiency and damage the braking system components due to changes in material structure. The high temperature in the braking system of heavy vehicles requires an air-cooling system that produces high-pressure air. This study compares the cooling process results between natural air and forced air. CFD modeling was chosen as the method to simulate the cooling process of bus drum brakes. The CFD method works by involving a network of elements in a system called a mesh. In CFD, the mesh is a component that focuses on dividing the fluid domain into small elements to analyze fluid flow, heat transfer, and dynamic phenomena. Using a cooling process, the brake system temperature gradually decreased as the wind speed increased. The examination proved that natural air could reach the highest temperature of 168.73 °C and the lowest temperature of 63.01 °C. Meanwhile, forced air could reach the highest temperature of 73.8 °C and the lowest temperature of 30.73 °C. Statistical models and machine learning were carried out to predict the accuracy of simulation from SOLIDWORKS. The values of average temperature after the cooling process are examined by employing the Gradient Boosting algorithm with the highest accuracy of prediction (R2) value of 0.999895 in natural conditions and 0.999822 in forced conditions. Overall, forced air shows better temperature reduction than natural air. By lowering the operating temperature, drum brake systems can extend their lifespan.
Thermal and Electromagnetic Analysis of a Dual-Mode ACG Motor for Start-Stop and Torque Assist Functions I Wayan Adiyasa, Fransisco Danang Wijaya, Eka Firmansyah Ifeec 2025 Proceedings of the 2025 International Future Energy Electronics Conference, 2025 In this paper, the possibility of utilizing conventional alternating current generator (ACG) motor to be adapted into dual-mode for idle start-stop (ISS) and torque assist (TA) is investigated. The approach used is a model simulation based on the geometric design of the ACG motor on a conventional motorcycle. The results show that in ISS mode, the maximum motor torque output is $\mathbf{6 N} \mathbf{~ n}$ at $\mathbf{1 2 0 ~ r p m}$ with a flux density of 1.84 T, but copper losses are dominant with a total of 145.72 W. In TA mode, the maximum torque of the motor is $1.2 \mathrm{~N}. \mathrm{m}$ at 1400 rpm with a flux density of 1.29 T, and core losses are the dominant factor at 33.01 W. When TA mode is operated for 10 seconds, the winding temperature increase is primarily influenced by copper losses, up to $43{ }^{\circ} \mathrm{C}$ in the ECE-R40 drive cycle and $40.7^{\circ} \mathrm{C}$ in the WMTC drive cycle.
Finite Element and Power Electronics Co-Design of A 12 V Permanent Magnet Motor for Electric Power Steering Applications I Wayan Adiyasa, Kurniawan Sigit Wahyudi, Ninda Kurniadi, Fajrin Sidiq Muzaffarul Zaman, Agus Widyianto, Mohamad Heerwan Bin Peeie Ifeec 2025 Proceedings of the 2025 International Future Energy Electronics Conference, 2025 This study presents a finite element analysis and power electronics co-design for a 12 V low-voltage permanent magnet motor (PMSM) applied to an Electric Power Steering (EPS) system. Finite element method (FEM) analysis is used to evaluate the electromagnetic characteristics, including cogging torque, torque-speed, core losses, and back-EMF distribution. The motor is able to maintain a torque of $2,046 \mathrm{~N}. \mathrm{m}$ at a speed of 1378.49 rpm with a cogging torque fluctuation of only 87.1 mNm. The system efficiency is recorded at 83.82% with an input power of 352.36 W and an output power of 295.36 W. Integration of power electronics simulations shows the circuit’s ability to maintain stable motor torque, with copper losses fluctuating in the range of $40-50 \mathrm{~W}$. The co-design approach can meet the EPS requirements in terms of efficiency, electromagnetic performance, and thermal reliability.
TECHNOLOGY ACCEPTANCE MODEL: ANALISIS INTENSI DAN ADOPSI KENDARAAN LISTRIK PADA CIVITAS AKADEMIKA PERGURUAN TINGGI KS Wahyudi, IW Adiyasa, FSM Zaman Jambura Industrial Review (JIREV) 6 (1), 55-65 , 2026 2026
Finite Element and Power Electronics Co-Design of A 12 V Permanent Magnet Motor for Electric Power Steering Applications IW Adiyasa, KS Wahyudi, N Kurniadi, FSM Zaman, A Widyianto, ... 2025 International Future Energy Electronics Conference (IFEEC), 494-499 , 2025 2025
Thermal and Electromagnetic Analysis of a Dual-Mode ACG Motor for Start-Stop and Torque Assist Functions IW Adiyasa, FD Wijaya, E Firmansyah 2025 International Future Energy Electronics Conference (IFEEC), 534-539 , 2025 2025
Enhancing competence in battery-based electric vehicle installation and programming at SMK Negeri Jambu N Kurniadi, SE Cahyanto, A Ardhiansyah, AR Sudarni, K Priyanto, ... Jurnal Pelayanan Masyarakat 2 (3), 117-127 , 2025 2025 Citations: 3
Motor sizing in optimizing braking of CVT transmission vehicles using regenerative braking method K Himawan, Sutiman, Y Efendi, IW Adiyasa AIP Conference Proceedings 3354 (1), 030010 , 2025 2025
Simple electronic design of a hybrid micro motorcycle system with idling start-stop system and torque assist features based on an ARM Cortex-M0 microcontroller IW Adiyasa, Z Arifin, Gunadi, KS Wahyudi AIP Conference Proceedings 3354 (1), 030022 , 2025 2025
Preface: The 6th International Conference on Vocational Education of Mechanical and Automotive Technology (ICoVEMAT) 2024 I Chairman AIP Conf. Proc 3354, 010001 , 2025 2025
Comparison of Brake Cooling System on Bus: Simulation and Evaluation of Natural vs Forced Air through Machine Learning Processing AW Gunadi, A WIDYIANTO, Y BUDIMAN, KS WAHYUDI, IW ADIYASA, ... JOURNAL OF ADVANCED RESEARCH 126 (2), 178-200 , 2025 2025 Citations: 2
BLDC Motor Sizing Analysis on P1 Topology Hybridization of Single Cylinder ICE IW Adiyasa, FD Wijaya, E Firmansyah 2024 FORTEI-International Conference on Electrical Engineering (FORTEI-ICEE … , 2024 2024
Analysis of Fuel and Energy Consumption Using the Torque Assist on Single Cylinder ICE IW Adiyasa, FD Wijaya, E Firmansyah 2024 16th International Conference on Information Technology and Electrical … , 2024 2024 Citations: 1
Analysis of materials on heat distribution in the design of battery pack cases for the Garuda Kencana electric car 2022 I Siswanto, IW Adiyasa, SE Nugraha AIP Conference Proceedings 3145 (1), 020023 , 2024 2024
Performance analysis of Throttle by Wire using DC and BLDC motor actuator IK Warjaya, IW Adiyasa, K Himawan AIP Conference Proceedings 3145 (1), 020049 , 2024 2024
BLDC motor performance modeling for electric vehicles based on battery performance AS Dewi, T Tafakur, IW Adiyasa AIP Conference Proceedings 3145 (1), 020037 , 2024 2024
Analysis of solar and wind energy potential on the design of a 16 kWh swab battery charging system IW Adiyasa, IWY Arta, RP Suteja AIP Conference Proceedings 3145 (1), 020051 , 2024 2024
Current working point effect on BLDC motor temperature and efficiency IW Warsita, IW Adiyasa, MAH Razid AIP Conference Proceedings 3145 (1), 020050 , 2024 2024 Citations: 1
Autonomous bus transit simulation in the Bali tourism development corporation (BTDC) area AD Dwipayana, A Pradana, RRO Sasue, IW Adiyasa Jurnal Teknologi Transportasi dan Logistik 5 (1), 31-46 , 2024 2024 Citations: 5
Identification of computation of solar and wind energy potential for off-grid electric motorcycle battery charging stations IW Adiyasa, MAHB Rasid, IW Warsita, Z Arifin, AD Dwipayana, RP Suteja 2023 International Conference on Smart-Green Technology in Electrical and … , 2023 2023 Citations: 8
Lightweight Design and Finite Element Analysis of Brake Lever for Motorcycle Application AP Prasetyono, A Yudianto, IW Adiyasa ComTech: Computer, Mathematics and Engineering Applications 14 (1), 21-32 , 2023 2023 Citations: 6
Need analysis for electric motorbikes based on the internet of things to improve the economy of individuals with disabilities AP Prasetyono, Y Efendi, A Damayanto, IW Adiyasa, BN Cahyaning AIP Conference Proceedings 2671 (1), 020033 , 2023 2023 Citations: 3
Aerodynamic investigation of extremely efficient vehicles under side wind conditions A Yudianto, M Solikin, S Sutiman, Z Arifin, IW Adiyasa, A Yudantoko Revista Facultad de Ingeniería Universidad de Antioquia, 79-88 , 2023 2023 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
Aerodynamics of bus platooning under crosswind A Yudianto, IW Adiyasa, A Yudantoko automotive Experiences 4 (3), 119-130 , 2021 2021 Citations: 16
Multiple sensing method using moving average filter for automotive ultrasonic sensor AP Prasetyono, IW Adiyasa, A Yudianto, SNK Agit Journal of Physics: Conference Series 1700 (1), 012075 , 2020 2020 Citations: 13
Bilinear interpolation method on 8x8 pixel thermal camera for temperature instrument of combustion engine IW Adiyasa, AP Prasetyono, A Yudianto, PPW Begawan, D Sultantyo Journal of Physics: Conference Series 1700 (1), 012076 , 2020 2020 Citations: 11
The development of learning media of 2-stroke engine manufactured by 3D print for distance learning M Solikin, A Yudianto, IW Adiyasa Jurnal Pendidikan Teknologi Dan Kejuruan 28 (1), 121-129 , 2022 2022 Citations: 10
Identification of computation of solar and wind energy potential for off-grid electric motorcycle battery charging stations IW Adiyasa, MAHB Rasid, IW Warsita, Z Arifin, AD Dwipayana, RP Suteja 2023 International Conference on Smart-Green Technology in Electrical and … , 2023 2023 Citations: 8
Design optimization analysis on the performance of BLDC motors on electric bicycles Z Arifin, IW Adiyasa, MAH Rasid Journal of Physics: Conference Series 2406 (1), 012016 , 2022 2022 Citations: 7
Design of simple ecu for lpg fuel injection on conventional generator set IW Adiyasa, E Firmansyah, AI Cahyadi, A Kautsar 2018 4th International Conference on Science and Technology (ICST), 1-6 , 2018 2018 Citations: 7
Lightweight Design and Finite Element Analysis of Brake Lever for Motorcycle Application AP Prasetyono, A Yudianto, IW Adiyasa ComTech: Computer, Mathematics and Engineering Applications 14 (1), 21-32 , 2023 2023 Citations: 6
Autonomous bus transit simulation in the Bali tourism development corporation (BTDC) area AD Dwipayana, A Pradana, RRO Sasue, IW Adiyasa Jurnal Teknologi Transportasi dan Logistik 5 (1), 31-46 , 2024 2024 Citations: 5
Analisis Faktor Kapasitas Pembangkit Listrik Hibrida PLTB dengan PLTD di Pulau Terpencil: Studi Kasus Elat Pulau Serau Maluku FD WIJAYA, IW ADIYASA, E WINATA ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik … , 2021 2021 Citations: 5
Aerodynamic performance analysis of open-wheel vehicle: Investigation of wings installation under different speeds A Yudianto, HA Susanto, A Suyanto, IW Adiyasa, A Yudantoko, NA Fauzi Journal of Physics: Conference Series 1700 (1), 012086 , 2020 2020 Citations: 5
Optimalisasi struktural pada handle kopling sepeda motor AS Kholis, F Achmad, A Yudianto, IW Adiyasa, M Solikin Conference on Innovation and Application of Science and Technology (CIASTECH … , 2020 2020 Citations: 5
Improvisasi Torsi Dan Efisiensi Pada Redesain Motor Brushless Dc Hoverboard Berdaya Dasar 350w IW Adiyasa Jurnal Pendidikan Vokasi Otomotif 5 (1), 27-42 , 2022 2022 Citations: 4
Virtual reality learning environments for vocational education: a comparative study with conventional instructional media on two-stroke engine F Sholichin, NM Suaib, DA Irawati, Sutiman, M Solikin, A Yudantoko, ... IOP Conference Series: Materials Science and Engineering 979 (1), 012015 , 2020 2020 Citations: 4
Enhancing competence in battery-based electric vehicle installation and programming at SMK Negeri Jambu N Kurniadi, SE Cahyanto, A Ardhiansyah, AR Sudarni, K Priyanto, ... Jurnal Pelayanan Masyarakat 2 (3), 117-127 , 2025 2025 Citations: 3
Need analysis for electric motorbikes based on the internet of things to improve the economy of individuals with disabilities AP Prasetyono, Y Efendi, A Damayanto, IW Adiyasa, BN Cahyaning AIP Conference Proceedings 2671 (1), 020033 , 2023 2023 Citations: 3
The Effect of Change in Injection Timing on Fuel Consumption of Garuda UNY Urban-19 Car Engine Sutiman, IW Adiyasa, FA Prapsita, H Yudistira Journal of Physics: Conference Series 1700 (1), 012077 , 2020 2020 Citations: 3
The effect of masses in the determination of optimal suspension damping coefficient A Yudianto, N Kurniadi, I Wayan Adiyasa, Z Arifin Journal of Physics: Conference Series 1273 (1), 012067 , 2019 2019 Citations: 3
Applied programmable ECU on an internal combustion engine single cylinder 600 cc for Student Formula Japan IW Adiyasa, A Yudianto, N Kurniadi, Sutiman Journal of Physics: Conference Series 1273 (1), 012065 , 2019 2019 Citations: 3
Comparison of Brake Cooling System on Bus: Simulation and Evaluation of Natural vs Forced Air through Machine Learning Processing AW Gunadi, A WIDYIANTO, Y BUDIMAN, KS WAHYUDI, IW ADIYASA, ... JOURNAL OF ADVANCED RESEARCH 126 (2), 178-200 , 2025 2025 Citations: 2