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MOTOR: Journal of Automotive Engineering
Contact Email
otomotif@upi.edu
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otomotif@upi.edu
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Jl. Dr. Setiabudi No.229, Isola, Kec. Sukasari, Kota Bandung
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INDONESIA
MOTOR: Journal of Automotive Engineering
Published by Universitas Pendidikan Indonesia
ISSN : 31108784     EISSN : -     DOI : -
Core Subject : Engineering,
Automotive Engineering
Journal of Automotive Engineering Education promotes research in the broad field of automotive engineering education (including such disciplines Automotive Engineering Education, Basic Science in Engineering Education, Laboratory and Tools Development, etc.) with particular respect to Indonesia, but not limited to authorship or topical coverage within the region. Contributions are expected from senior researchers, project managers, research administrators and PhD students at advanced stages of their research, representing both public organizations and private industry. Equally, the journal if intended for scholars and students, researchers working at research organizations and government agencies, and also for enterprises undertaking applied R&D to lead innovations. The editorial contents and elements that comprise the journal include: Theoretical articles Empirical studies Practice-oriented papers Case studies Review of papers, books, and resources. As far as the criteria for evaluating and accepting submissions is concerned, a rigorous review process will be used. Submitted papers will, prior to the formal review, be screened so as to ensure their suitability and adequacy to the journal. In addition, an initial quality control will be performed, so as to ensure matters such as language, style of references and others, comply with the journal´s style. SCOPE OF JOURNAL OF AUTOMOTIVE ENGINEERING: • Automotive Engineering • Basic Science in Engineering • Energy of Automotive Engineering • Manufacture of Automotive Engineering • New Technologies in Engineering • Industry and Engineering Reforms • Automotive Engineering for Industry 4.0 • Research and Development in Automotive Engineering • Globalization in Automotive Engineering • Computers, Internet, Multimedia in Engineering • Organization of Laboratories in Automotive engineering • Laboratory and Tools Development of Automotive • Innovation of Automotive Experimental Development • Optimization of Automotive Modelling and Simulation • Automotive Engineering Education • Engineering Education
Arjuna Subject : Teknik (semua kategori) - Teknik Otomotif
Articles 23 Documents
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ANALYSIS OF PREVENTIVE MAINTENANCE KOMATSU HD 785-7 AT PT XYZ
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v1i2.77709

Abstract

This study aims to analyze the maintenance of the Komatsu HD 785-7 unit at PT XYZ, a contracting company engaged in coal mining in Indonesia. The research method used is qualitative, which includes literature study and field surveys. The literature study was conducted by examining the rules and standard operating procedures at XYZ, as well as the specifications of the Komatsu HD 785-7 unit through the manual book and related journals. The field survey was carried out to collect data on unit specifications, maintenance schedules, and operational costs through interviews and observations. The results of the study indicate that the availability of components according to the type of maintenance is crucial to support the smooth maintenance process. The conclusion of this study emphasizes the need for a systematic and planned maintenance approach to maximize the performance of heavy equipment and reduce operational costs. This research is expected to serve as a reference for other companies in effectively managing heavy equipment maintenance.
ANALYSIS OF THE EFFICIENCY OF A 72 VOLT 15 AH LITHIUM ION BATTERY IN A MOTORCYCLE DESIGNED WITH 3 KW OF POWER
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v2i2.89709

Abstract

The development of electric vehicle technology is rapidly advancing in line withthe increasing demand for environmentally friendly and energy-efficient transportation. This research aims to evaluate the efficiency level of an electric motor designedusing a 72-volt 15 Ah lithium-ion battery with 3 kW of power,with a primary focus on assessing the performance of electric motors in supportingenvironmentally friendly mobility, while also reviewing the extent to whichbattery technology plays a role in improving the effectiveness of the drive system. The testingwas conducted at the Automotive Laboratory of the Indonesia University of Education usingthe Dyno Test BRT 50 LE and LB equipment. Data was collected through measurements ofvoltage, current, and power under both no-load and 60 kg load conditions. The test results showed variations in output power (P_out) and input power(P_in) with an average efficiency of 61.06%. This value reflects thatthe electric motor is able to work stably even though its efficiency varies ineach test condition. This study confirms that lithium-ion battery-based electric motorshave the potential to be an alternative for sustainable transportation, but there needs to be optimization of technology to improveperformance and efficiency in the future. Perkembangan teknologi kendaraan listrik semakin pesat seiring meningkatnya kebutuhan transportasi ramah lingkungan dan efisiensi energi. Penelitian ini bertujuan untuk mengevaluasi tingkat efisiensi motor listrik yang dirancang menggunakan baterai lithium-ion bertegangan 72 Volt 15 Ah dengan daya 3 kW, dengan fokus utama untuk menilai kinerja motor listrik dalam mendukung mobilitas yang ramah lingkungan, sekaligus meninjau sejauh mana teknologi baterai berperan dalam meningkatkan efektivitas sistem penggerak. Pengujian dilakukan di Laboratorium Otomotif Universitas Pendidikan Indonesia dengan menggunakan alat Dyno Test BRT 50 LE dan LB. Data diambil melalui pengukuran tegangan, arus, dan daya baik pada kondisi tanpa beban maupun dengan beban 60 kg. Hasil pengujian menunjukkan variasi daya keluar (P_out) dan daya masuk (P_in) dengan rerata efisiensi sebesar 61,06%. Nilai ini mencerminkan bahwa motor listrik mampu bekerja dengan stabil meskipun efisiensinya bervariasi pada setiap kondisi pengujian. Penelitian ini menegaskan bahwa motor listrik berbasis baterai lithium-ion berpotensi menjadi alternatif transportasi berkelanjutan, namun perlu adanya optimalisasi teknologi untuk meningkatkan kinerja dan efisiensi di masa depan.
USAGE OF RACING IGNITION COIL ON A YMJET-FI 115 CC ENGINE USING ETHANOL-BLENDED FUEL TO REDUCE EXHAUST EMISSIONS
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v1i1.73190

Abstract

Studi ini mengevaluasi dampak koil pengapian balap pada mesin YMJET-FI 115 CC menggunakan bahan bakar campuran Etanol pada emisi gas buang. Menambahkan Etanol ke pertalite dalam komposisi 10%, 20%, 30%, dan 40% memengaruhi sifat kimia bahan bakar. Menggunakan koil standar dengan campuran Etanol (E10, E20, E30, dan E40) tidak mengubah emisi karbon monoksida (CO) secara signifikan, dengan level CO terendah pada 4,96% untuk E30. Sebaliknya, koil balap BRT dengan campuran ini menghasilkan perubahan penting, dengan level CO terendah pada 4,21% untuk E10. Emisi karbon dioksida (CO2) dengan koil standar tidak menunjukkan perubahan signifikan, dengan level CO2 terendah pada 9,7% untuk E30, sedangkan koil balap BRT menunjukkan perubahan signifikan, dengan level CO2 terendah pada 7,45% untuk E40. Emisi hidrokarbon (HC) dengan koil standar tetap stabil, dengan kadar HC terendah pada 452 ppm untuk E30, tetapi koil balap BRT menunjukkan perubahan signifikan, dengan kadar HC terendah pada 319,5 ppm untuk E10. Dampak campuran Etanol pada emisi gas buang kurang signifikan dengan koil standar, sedangkan koil balap BRT menunjukkan pengurangan emisi yang signifikan. Peningkatan ini disebabkan oleh pembakaran yang lebih sempurna yang dihasilkan dari resistansi dan voltase yang lebih baik. Studi ini menyimpulkan bahwa koil pengapian balap BRT secara efektif mengurangi emisi gas buang pada mesin YMJET-FI 115 CC dengan bahan bakar campuran Etanol.
PERFORMANCE ANALYSIS OF A REGENERATIVE BRAKING SYSTEM WITH AN INDUCTION MOTOR-DRIVEN SUPERCAPACITOR THROUGH MATLAB SIMULINK SIMULATION
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v2i2.87859

Abstract

This study analyzes the performance of a regenerative braking system that integrates a supercapacitor with an induction motor. The method used was quantitative with an experimental approach through MATLAB Simulink simulation as an analysis tool. The system’s behavior is observed during both acceleration and deceleration phases. Results indicate that no energy recovery occurs during acceleration. However, during deceleration, significant fluctuations in current, voltage, and battery State of Charge (SOC) signal that energy is being recovered. When regenerative braking is applied, the SOC drops only 1% over 2.5 seconds, compared to a 3% drop without it, illustrating improved battery efficiency. The integration of a supercapacitor proves effective in absorbing current and voltage spikes, thereby reducing stress on the battery and enhancing its longevity. Nevertheless, the addition of the supercapacitor does not lead to a substantial improvement in overall energy recovery efficiency; in fact, a slight decrease is noted. These findings reveal the trade-offs involved in supercapacitor integration and serve as a valuable reference for optimizing future regenerative braking systems.Penelitian ini bertujuan untuk menganalisis kinerja sistem pengereman regeneratif yang menggabungkan superkapasitor dengan motor induksi. Metode yang digunakan yaitu kuantitatif dengan pendekatan eksperimental melalui simulasi MATLAB Simulink sebagai alat bantu analisis. Hasil dari simulasi menunjukkan bahwa pemulihan energi tidak terjadi selama fase akselerasi, namun hal tersebut terjadi pada fase deselerasi terdeteksi adanya fluktuasi arus, tegangan, dan State of Charge (SOC) baterai yang mengindikasikan adanya proses pemulihan energi. Ketika sistem pengereman regeneratif diaktifkan, penurunan SOC hanya sebesar 1% dalam 2,5 detik, dibandingkan dengan penurunan 3% tanpa sistem tersebut, yang menandakan bahwa adanya peningkatan efisiensi pemakaian energi baterai. Superkapasitor terbukti mampu menyerap lonjakan arus dan tegangan dengan baik, sehingga membantu agar melindungi baterai dari stres yang berlebih. Namun, integrasi superkapasitor tidak secara signifikan meningkatkan efisiensi total pemulihan energi, bahkan menunjukkan sedikit penurunan. Temuan ini mengungkap manfaat sekaligus keterbatasan dari integrasi superkapasitor dalam sistem pengereman regeneratif, serta memberikan landasan bagi penelitian dan pengembangan sistem yang lebih optimal di masa depan. 
MODIFICATION AIR CONDITIONING SYSTEM BY REMOTE CONTROL BASED ON LIGHT VEHICLE MITSUBISHI VB5W
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v2i1.79394

Abstract

Sistem A/C (Air Conditioning) merupakan suatu proses pengkondisian udara dimana udara itu didinginkan, dikeringkan, dibersihkan dan disirkulasikan yang selanjutnya jumlah dan kualitas dari udara yang dikondisikan tersebut dikontrol. Tujuan pada penelitian ini adalah memodifikasi system A/C berbasis remote control.  Pengoprasian ini menggunakan sinyal frekuensi 433hz menggunakan modul relay yang berfungsi memudahkan pengguna kendaraan dalam mengoprasikan system A/C dengan jarak tertentu. Metode penelitian yang digunakan metode penelitian deskriptif kuantitatif dengan menggunakan langkah-langkah penelitian model PPE (Planing, Production, Evaluation) yang dikembangkan oleh Richey dan Klien. Tahap Planing (Perencanaan) Perancanngan ide penulis untuk membuat sistem starter A/C yang menggunakan remote control pada kendaraan, selanjutnya Tahap Production (Produksi). Pada tahap ini dilakukan proses perancangan dan pembuatan sistem yang telah dirancang oleh penulis yaitu membuat program dan menggambarkan secara garis besar apa saja alat dan bahan yang digunakan. Langkah selanjutnya Pengujian (Evaluasi). Data penelitian dikumpulkan melalui pengujian keberhasilan dari perancangan yang telah dilakukan Pengujian dilakukan dengan cara pengujian sistem A/C melalui remote control.
CONDITION BASED MONITORING IMPROVES COMPONENT DURABILITY IN HEAVY EQUIPMENT MAINTENANCE
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v1i2.77712

Abstract

Penelitian ini bertujuan untuk menganalisis penerapan Condition-Based Monitoring (CBM) dalam strategi pemeliharaan alat berat pada PT XYZ, salah satu kontraktor pertambangan batu bara terkemuka di Indonesia. Penelitian menggunakan metode kualitatif dengan observasi langsung, wawancara, serta analisis data terkait pemeliharaan prediktif berbasis CBM. Populasi penelitian adalah unit alat berat yang digunakan di lingkungan Pertambangan, dengan sampel berupa komponen seperti magnetic plug, filter cut, dan cylinder hoist. Instrumen yang digunakan meliputi check sheet, wawancara teknis, serta dokumen pemeliharaan historis. Hasil penelitian menunjukkan bahwa penerapan CBM di Pertambangan efektif dalam mendeteksi kerusakan sejak dini melalui pemantauan kondisi berbasis sensor dan analisis data. Strategi ini memungkinkan perusahaan mengurangi waktu henti operasional hingga 25%, meningkatkan durabilitas komponen, serta memperpanjang masa pakai alat berat sesuai dengan standar pabrik. Pemeliharaan berbasis kondisi juga mendukung efisiensi biaya dengan mengurangi perbaikan yang tidak diperlukan. Sistem rating yang digunakan (A, B, C, X) membantu memprioritaskan tindakan pemeliharaan berdasarkan tingkat keparahan kondisi komponen.
ANALYSIS OF THE IMPACT OF USE OF SUPER COIL G COIL AND CPR9EAIX-9B COIL ON THE PERFORMANCE OF ENGINE MOTORCYCLE TYPE 2PV
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v1i1.73164

Abstract

The rapid development of automotive technology is driving innovation in motor vehicle ignition systems, especially on combustion motors in the Otto motor type. (gasholine). One of the major problems faced is the underoptimal performance of standard ignition systems, which affects power, torque, fuel consumption, and exhaust gas emissions. The research is aimed at addressing the problem by testing the impact of replacing standard lighting system components with alternative spare parts products on motorcycles with 2PV engine code. The research method used is experimental replacement of standard coils with Super Coil G coils and standard hose with CPR9EAIX-9B hose. Tests are carried out to measure torque, power, fuel consumption, and exhaust gas emissions before and after modification using Shell Super 92 fuel. Based on laboratory test results, the highest torque was achieved by the Super Coil G variation and the CPR9EAIX-9B foam variation of 18.1 N.m. The highest power was obtained by the standard G super coil variation with 20.35 HP. The lowest fuel consumption was reached by a standard G Super coil variant and a standard foam variant of 0.12 liters per hour. The results of empirical testing showed that variations of standard coils and standard hose resulted in a maximum speed of 102 km/h. The research provides an impact of practical solutions to improve motorcycle performance and support efforts to reduce exhaust gas emissions, in accordance with the standard quality standards of exhaustive gases set by the government.
ARDUINO BASED RADIO FREQUENCY IDENTIFICATION (RFID) APPLICATION FOR MOTORCYCLE SECURITY SYSTEM
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v2i2.76513

Abstract

Vehicle security systems are essential in reducing and preventing theft, especially in densely populated areas where motorcycles are common targets. This study focuses on designing and implementing a motorcycle security system using Radio Frequency Identification (RFID) technology, integrated with an Arduino microcontroller. The proposed system replaces conventional ignition keys with RFID cards, allowing only authorized users to activate the engine. The study aims to evaluate the system’s effectiveness in improving motorcycle safety, particularly its ability to detect and respond to valid RFID tags. The research methodology includes identifying security issues, conducting a literature review, designing both hardware and software components, and testing the system’s performance. Performance indicators assessed include reading distance, reading angle, response time, and power efficiency. Experimental results show that the RFID system operates optimally at a reading distance of 2-5 cm, within a reading angle of 0-45 degrees, and with an average response time of 0.8 seconds. Overall, the system is proven to be effective, efficient, and reliable.Sistem keamanan kendaraan berperan penting dalam upaya pencegahan tindak pencurian, terutama pada sepeda motor yang sering menjadi sasaran. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem keamanan sepeda motor berbasis teknologi Radio Frequency Identification (RFID) yang telah terintegrasi dengan mikrokontroler Arduino. Sistem ini menggunakan kartu RFID sebagai pengganti kunci konvensional untuk menghidupkan dan mematikan mesin secara otomatis, sehingga hanya pengguna yang memiliki kartu yang terdaftar yang dapat mengoperasikan kendaraan. Penelitian ini mengevaluasi efektivitas sistem dalam mencegah pencurian, serta utuk menguji kinerjanya pada berbagai kondisi. Metode penelitian yang digunakan mencakup identifikasi masalah, studi pustaka, perancangan perangkat keras dan lunak, serta pengujian performa sistem berdasarkan jarak baca, sudut baca, waktu respons, dan konsumsi daya. Hasil menunjukkan bahwa sistem mampu membaca kartu RFID pada jarak optimal 2-5 cm, sudut 0-45 derajat, dan waktu respons rata-rata 0,8 detik. Secara keseluruhan, sistem ini dinilai lebih efektif, efisien, dan andal dalam meningkatkan keamanan kendaraan.
ANALYSIS OF THE REAR WHEEL SHAFT OF THE WHITE HORSE EVO 1 ELECTRIC CAR
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v2i1.88036

Abstract

This research is based on the existence of vehicle conversion activities from combustion motorcycles to electricity. Several parts were replaced or customized during the conversion process. Therefore, an analysis of their quality was required to ensure that the converted vehicles were safe to drive, through a safety analysis. The purpose of this study is to analyze the forces that occur in the rear axle of the White Horse EVO 1 electric car, as well as evaluate the safety factor of the axle against static loads on the vehicle. The method used is descriptive quantitative with a field experiment approach equipped with manual calculations based on engineering mechanics. The calculation results showed that the safety factor values obtained on the left and right axes were 1.25 and 1.28 respectively. This value indicates that the shaft is in a safe condition for static use. The safety factor value obtained shows that the vehicle's wheel shaft is at the minimum limit of structural feasibility. Although the shaft is still relatively safe in static conditions, the safety factor value close to 1.0 indicates high material efficiency but with a very thin margin of safety. Penelitian dilatarbelakangi oleh adanya kegiatan konversi kendaraan dari motor bakar menjadi listrik. Terdapat beberapa suku cadang yang diganti atau custom pada proses konversi tersebut. Oleh karena itu, diperluka anlisis akan kualitasnya agar kendaraan yang dikonversi aman untuk dikendarai, yaitu melaui analisis keselamatan. Tujuan dari penelitian ini adalah untuk menganalisis gaya-gaya yang terjadi pada poros roda belakang Mobil Listrik White Horse EVO 1, serta mengevaluasi faktor keselamatan (safety factor) poros terhadap beban statis pada kendaraan. Metode yang digunakan adalah kuantitatif deskriptif melalui pendekatan eksperimen lapangan yang dilengkapi perhitungan manual berbasis mekanika teknik. Hasil analisis menunjukkan bahwa nilai safety factor yang diperoleh pada poros kiri dan kanan masing-masing yaitu sebesar 1,25 dan 1,28. Nilai tersebut menunjukkan bahwa poros berada dalam kondisi aman untuk digunakan secara statis. Nilai safety factor yang diperoleh menunjukkan bahwa poros roda kendaraan berada pada batas minimum kelayakan struktural. Meski poros masih tergolong aman dalam kondisi statis, nilai safety factor yang mendekati angka 1,0 menandakan efisiensi material tinggi, namun dengan margin keselamatan yang sangat tipis.
Analysis Of Electrical Power Requirements For Arduino Based Wireless Starter Control Module In Motorcycles
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Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/motor.v1i2.73196

Abstract

This study aims to design a wireless starter system module based on Arduino, equipped with a motorcycle anti-theft security system, and to analyze the electrical power consumption of the module during operation. The development of this motorcycle control module is motivated by the damage to engine components caused by the infrequent warming up of the engine before use and the high rate of motorcycle theft. This study uses a descriptive method to outline the results of the module development and the analysis of electrical power requirements. Data collection begins with the preparation phase, followed by module development, testing, and analysis. Data is presented in the form of tables and graphs. The results of this study show that (1) An Arduino-based wireless starter control module, which can be operated with an Android smartphone, has been developed; (2) the highest power consumption is 3.24 watts when the key switch and starter switch are activated; (3) continuous use of this module will quickly deplete the motorcycle battery. when the security mode is active, the battery lasts approximately 27 hours, and when the security mode is off, the battery lasts approximately 42 hours. "In conclusion: (1) The wireless starter module simplifies starting the vehicle from a maximum distance of 13 meters in open areas and 6 meters in enclosed spaces. (2) This module requires an external power source to avoid interfering with the motorcycle's electrical system, or the engine should be started frequently to prevent the motorcycle battery from depleting quickly

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