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All Journal Automotive Experiences
I Nyoman Sutantra
Institut Teknologi Sepuluh Nopember, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Mechanical Engineering

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Effect of Anti-lock Braking System Modulation Frequency on Flywheel-Based Energy Harvesting During Panic Braking Agung Prijo Budijono; I Nyoman Sutantra; Agus Sigit Pramono; Aris Purwanto; Po-Hung Lin
Automotive Experiences Vol. 9 No. 1 (2026)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.16210

Abstract

A considerable portion of braking energy in electric vehicles is dissipated as heat, especially during severe or panic braking. This study experimentally investigates the effect of anti-lock braking system (ABS) modulation frequency on flywheel-based energy harvesting during panic braking using a laboratory-scale Flywheel Regenerative Capture System (FRCS). The proposed setup integrates an ABS braking unit, a magnetic clutch, a flywheel, and an electrical generator to recover part of the braking energy while maintaining braking stability. Experiments were conducted at ABS modulation frequencies of 10, 20, 30, 40, and 50 Hz. Braking performance was evaluated using wheel-speed response, slip ratio, braking time, braking distance, flywheel rotational response, and generated electrical power. At an initial braking speed of 1000 rpm, the ABS braking process operated within a slip-ratio range of approximately 0.17–0.38, while the shortest braking distance under regenerative braking reached about 15.83 m at 40 Hz, compared with about 19.58 m at 10 Hz without regenerative braking. The 10 Hz setting produced the most stable deceleration pattern, the highest flywheel rotational response, and the highest electrical output, whereas higher frequencies increased fluctuation and reduced effective torque transfer to the generator. These findings indicate that ABS modulation frequency strongly influences both braking stability and flywheel-based energy harvesting performance. The study demonstrates the feasibility of integrating a flywheel regenerative capture system with ABS-controlled panic braking, providing a basis for further vehicle-scale development.
The Effect of Perpendicular Lamp Position on Normal Plane Alignment for Light Distribution and Coverage in Adaptive Headlamps During Complex Driving Scenarios Ian Hardianto Siahaan; I Nyoman Sutantra; I Made Londen Batan
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.14602

Abstract

Due to decreased visibility and an increased chance of accidents, driving at night requires increased vigilance. Drivers must be equipped to handle various road and terrain conditions, such as declines, inclines, turns, straight paths, and combinations. Following the law and ethical driving standards is crucial in these circumstances. Inadequate street illumination, poor lighting, and inexperienced drivers are all common causes of accidents. The risks increase at night when little ambient lighting reduces visibility. This study investigates the distribution of light intensity and illumination radius via a factorial design derived from headlamp activation configuration scenarios, simulated in MATLAB software, and validated using experimental test results. The results show that driver focus and vision range improve dramatically, particularly when the lights are triggered on flat roads, during turns, climbs, and combinations of these actions, by the New ADHL's headlamp activation configuration. Simulation-based activation of main and auxiliary light configurations shows that the New ADHL outperforms traditional headlamps, effectively addressing insufficient illumination to prevent nighttime accidents and providing a coverage radius of more than 3.5 m at the lowest intensity detectable by the driver.
Co-Authors Agung Prijo Budijono Agus Sigit Pramono Aris Purwanto I Made Londen Batan Ian Hardianto Po-Hung Lin