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Abstrak :
Kendaraan listrik diproyeksikan akan menggantikan kendaraan Internal Combustion Engine (ICE) dalam beberapa tahun ke depan. Penelitian terkait mobil listrik terus dilakukan oleh para ahli. Salah satu bagian penting dari kendaraan listrik adalah powertrain, motor listrik. Mobil dengan ICE dapat diubah menjadi mobil listrik dengan mengganti ICE dengan motor listrik. Penelitian ini strategis karena diperkirakan masih ada kendaraan ICE di era transisi mobil listrik. Jika tidak dikonversi, akan banyak bangkai kendaraan konvensional. Penulis mengubah kendaraan ICE menjadi kendaraan listrik. Mobil ini memiliki sistem transmisi manual. Sistem kopling dan transmisi yang ada masih digunakan. Kendaraan ini menggunakan penggerak roda depan. Ruang yang sempit dan jarak poros drive shaft depan ke pusat poros transmisi juga menjadi tantangan. Agar motor listrik tidak membentur drive shaft, maka motor listrik dioffset tidak tepat ditengah seperti poros transmisi. Penggunaan gearbox perantara berhasil mengatasi masalah tersebut. Rasionya pada gearbox perantara dapat diubah sesuai kebutuhan. Agar motor dapat dipasang ke transmisi, flensa perantara dikembangkan. Itu membuat kopling berfungsi dengan benar. Sistem ini terdiri dari motor listrik, gearbox perantara, dan adaptor. Bahan casing dari bagian-bagian itu adalah aluminium. Proses pembuatan casing dilakukan dengan mesin CNC. Keyakinan pada kekuatan desain dan material motor sangat penting. Oleh karena itu, penelitian ini berfokus pada analisis kekuatan yang dilakukan dengan menggunakan metode analisis elemen hingga (FEA) dan diperkuat dengan perhitungan matematis. Penelitian ini juga menjelaskan tentang proses pembuatan dan perakitan motor listrik hingga motor listrik terpasang dengan baik. Hasil analisa kekuatan beberapa komponen motor listrik 25 kW dengan kecepatan 300 rpm menunjukan bahwa komponen seperti casing motor menggunakan ukuran baut M10, shaft motor berdiameter 25 mm, casing gearbox perantara menggunakan ukuran baut M12, input dan output shaft gearbox perantara berdiameter 25 mm dan mempunyai safety factor diatas 1.5 sehingga komponen tersebut dapat dimanufaktur. Gearbox perantara membuat posisi motor tidak menghalangi pergerakan drive shaft dan tidak menghalangi komponen yang lain. Kemudian TKDN komponen motor listrik, seperti: casing motor dan casing gearbox perantara, shaft motor dan shaft gearbox perantara yaitu Rp 59.892.040,- dan TKDN 100% dengan self assessment. ......Electric vehicles are projected to replace Internal Combustion Engine (ICE) vehicles in the next few years. Research related to electric cars continues to be carried out by experts. One of the essential parts of an electric vehicle is the powertrain, an electric motor. A car with ICE can be converted into an electric car by replacing the ICE with an electric motor. This research is strategic because it is forecasted that there are still ICE vehicles in the transition era of electric cars. If they are not converted, there will be many carcasses of the conventional vehicle. The authors converted an ICE vehicle into an electric vehicle. The car has a manual transmission system. The clutch system and existing transmission were still in use. This vehicle uses front wheels drive. The narrow space and the propeller shafts/front axles distance to the center of the transmission axis are also a challenge. So that the electric motor does not hit the propeller shaft, the electric motor was offset not in the exact center as the transmission axis. The use of an gearbox perantara succeeded in overcoming these problems. The ratio in the gearbox perantara can be changed as needed. In order for the motor to be attached to the transmission, an intermediate flange was developed. It keeps the clutch functioning correctly. The system consists of an electric motor, gearbox perantara, and adapter. The housing material of those parts is aluminum. The housing manufacturing process was carried out with a CNC machine. Confidence in the strength of the motor design and material is vital. Therefore, this study focuses on strength analysis carried out using the finite element analysis (FEA) method and strengthened by mathematical calculations. This study also describes the process of manufacturing and assembling an electric motor until the electric motor is properly installed. The results of the analysis of the strength of several components of a 25 kW electric motor with a speed of 300 rpm show that components such as the motor casing use M10 bolt size, motor shaft diameter of 25 mm, intermediate gearbox casing using M12 bolt size, input and output intermediate gearbox shaft diameter of 25 mm and has safety. factor above 1.5 so that component can be manufactured. The intermediate gearbox makes the motor position not restrain the movement of the drive shaft and does not hold other components. Then the TKDN of electric motor components, such as motor casing and intermediate gearbox casing, motor shaft and intermediate gearbox shaft is Rp. 59,892,040,- and 100% TKDN with self assessment.

Abstrak :
Seiring dengan tren negatif dalam perkembangan penggunaan bahan bakar minyak bumi pada kendaraan bermotor khususnya mobil maka dibutuhkan alternatif kendaraan bermotor yang bertenaga listrik. Mobil listrik konversi merupakan salah satu solusi dengan mempertimbangkan jumlah kendaraan berbahan bakar minyak bumi saat ini. Penulis akan memfokuskan metode perancangan mekanik dengan perhitungan teoritikal beserta simulasi menggunakan software terhadap sistem powertrain konversi listrik khususnya pada komponen-komponen yang bersifat adaptif. Penulis juga memaparkan perangkat data acquisition serta proses pengolahan data dari uji performa dari mobil listrik tersebut. Didapatkan performa mobil dengan sistem powertrain konversi listrik dapat memiliki nilai percepatan dari 0 - 60 km/jam rata - rata sebesar 5.153 detik dan nilai efisiensi rata - rata sebesar 87.031 %. ......Along with the negative trend in the application of petroleum fuels in the vehicles , especially cars it needed alternative electric-powered motor vehicles. Converted electric car is one solution taking into account the amount of petroleum fueled vehicles today . The author will focus on mechanical design methodology along with theoretical calculations using the simulation software to electric conversion powertrain system, especially on the components that are adaptive. The author also describes the data acquisition and data processing of the test performance of the electric car. Converted electric car reaches speeds of 60 km/h averagely in 5.153 seconds and with an efficiency averagely of 87.031 %.

Abstrak :
This volume includes selected and reviewed papers from the 4th International Congress of Automotive and Transport Engineering, held in Cluj, Romania, in September 2018. Authors are experts from research, industry and universities coming from 14 countries worldwide. The papers are covering the latest developments in automotive vehicles and environment, advanced transport systems and road traffic, heavy and special vehicles, new materials, manufacturing technologies and logistics, accident research and analysis and innovative solutions for automotive vehicles. The conference is organized by SIAR (Society of Automotive Engineers from Romania) in cooperation with FISITA.

Abstrak :
This work presents an investigation of the influence of different modeling approaches on the quality of fuel economy simulations of hybrid electric powertrains. The main focus is on the challenge to accurately include transient effects and reduce the computation time of complex models. Methods for the composition of entire powertrain models are analyzed as well as the modeling of the individual components internal combustion engine and battery. The results shall help with the selection of suitable models for specific simulation tasks and provide a deeper understanding of the dynamic processes within simulations of hybrid electric vehicles.