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All Journal Rotasi Jurnal Teknik Mesin Mechanical Xplore
Bima, Rangga
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Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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The Effect Of Gear Ratio Variations And Vehicle Weight On Energy Efficiency In Electric Prototype Vehicles Of The Engineering Faculty Of Mataram University Bima, Rangga; Mara, I Made
ROTASI Vol 27, No 1 (2025): VOLUME 27, NOMOR 1, JANUARI 2025
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.27.1.23-28

Abstract

Electric vehicles are vehicles that are driven by electric motors using electrical energy derived from battery energy sources. Like most other electric vehicles, electric prototype vehicles are also controlled using throttle pedals on the steering wheel and also the braking system. This study also aims to determine how much electrical energy consumption is used in the vehicle, by varying the gear ratio and vehicle weight. The test method was carried out by releasing the throttle when the vehicle reached maximum speed, with the aim of being able to produce a lower level of energy consumption with higher efficiency. Gear ratio variations used were 6.43; 7.56; 8.57; 9.08 and 10.20 and vehicle weight variations used were 120.5 kg; 130.5 kg and 140.5 kg. The results of the test show that if the smaller the gear ratio used and the heavier the load from the vehicle, the greater the energy required. The results of this study indicate that, vehicles with lighter weight and with the use of larger gear ratio variations can reduce the consumption of electrical energy used. And can increase higher energy efficiency, so as to increase the maximum mileage range of the vehicle. The findings from this study can also provide additional information and valuable insights in the development of more efficient electric vehicles in the future.
Analysis of the Influence of Transmission Systems and Vehicle Weight on the Range Capability of the Mandalika Desantara Prototype Vehicle Bima, Rangga Bima; Bima, Rangga; Mara, I Made; Okariawan, I Dewa Ketut
Jurnal Teknik Mesin Mechanical Xplore Vol. 6 No. 1 (2025): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v6i1.10276

Abstract

The development of electric vehicles (EVs) plays a vital role in reducing carbon emissions and decreasing dependence on fossil fuels. This study examines the range efficiency of the Mandalika Desantara electric prototype by investigating the impact of vehicle weight and transmission configuration on energy consumption. Experimental tests were conducted using three different vehicle weights (120.5, 130.5, and 140.5 kg) and multiple transmission ratios. The results indicate a positive correlation between vehicle weight, energy usage, and travel performance. The lowest energy consumption was recorded at 21.33 Wh for the 120.5 kg configuration, achieved at an average speed of 14.42 km/h. The highest was 46 Wh for the 140.5 kg configuration, attained at 20.00 km/h. Motor power output ranged from 113.01 W to 177.22 W, with a range efficiency varying between 0.052 km/W and 0.113 km/W. Travel times ranged from 548 seconds at a transmission ratio of 6.43 to 822 seconds at a ratio of 10.29. These findings underscore the importance of optimized weight management and transmission selection in enhancing EV performance, thereby contributing to the development of more energy-efficient and sustainable electric mobility solutions.
Co-Authors Bima, Rangga Bima I Made Mara Okariawan, I Dewa Ketut