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The implementation of electric vehicles is a phenomenon that will occur massively in the community. The availability of a battery charging system is a separate problem related to the infrastructure of the electric vehicle ecosystem. This paper focuses on discussing the analysis of the implementation of renewable energy sources for electric motorcycle charging systems. The charging system is swab-based, so the battery that is being charged must be removed from the electric motorcycle for charging. The test for the analysis of the charging system using renewable energy sources inserts 10 batteries with a power of 1.5kW per day. The results show a comparison of the application of power plants with a minimum power of 22.6 kW, a middle power of 32.8 kW, and a maximum of 43.0 kW to produce electrical energy for a year. The optimal number of plants implemented is analyzed based on the potential of renewable energy sources, solar and wind. [ABSTRACT FROM AUTHOR]

The development of electric vehicles has increased over the decades. This phenomenon has done much research to develop electric motors that can accommodate transportation needs with high efficiency and safety. This study investigates the impact of the current working point on the motor temperature and efficiency of the electric motor. The type of study was an experimental study. The subject of study is an electric motor 300W applied on a hoverboard. MATLAB Simulation was used to investigate the temperature of each electric motor component and the efficiency of the electric motor. The study showed that changing the current working point on the electric motor affected the temperature change in the electric motor component. The lower the working current, the lower the temperature occurs in the electric motor. The lowest temperature is in the current working point 4A, where the temperature in the stator back iron is 59.1 degree Celsius, the temperature in the rotor magnet is 50 degrees Celsius, and the temperature in the rotor core is 49.8 degree Celsius. The results of the motor torque and efficiency analysis show that a 10A motor working current point has the highest efficiency with 90-91% with a range of 600-700 rpm and a torque of 0.8-1.8 N.m. In contrast, the 4A motor working current has a small range of efficiency with maximum efficiency of 89-90% in a speed range of 550-700 rpm. [ABSTRACT FROM AUTHOR]

The development of technology today improves the efficiency of energy use in order to reduce energy use and pollution. Electronic control began to be adapted to the vehicle's system, where this system added sensors and electronic drives to the vehicle nowadays called Drive by Wire. Drive by wire was one of the technologies used to increase efficiency and reduce mechanical losses in vehicles. Its application to the throttle is called Throttle by Wire. Applying Drive by Wire technology in vehicles is one step toward more efficient vehicle technology. These, namely electric and autonomous vehicles, increase the efficiency of various aspects of all systems on the vehicle being controlled electronically. Electronic throttle technology in vehicles can increase fuel efficiency and reduce exhaust emissions. This paper uses a throttle by wire design using a DC and BLDC motor. The DC and BLDC motors used operate at 12V voltage. The speed of each motor is 3000 rpm with control using pulse width modulation (PWM). The first stage of the research is to identify the torque requirement and the opening angle of the throttle valve. Furthermore, simulations are carried out to test the performance of DC and BLDC motors. Design testing is carried out in 3 stages, namely, up-down test, ramp test with step, and ramp test. Throttle-by-wire performance is simulated in operation for 1 minute. The performance of the DC and BLDC motors on the throttle by wire design was compared. Comparison of the simulation results obtained response time, overshoot, and undershoot at the measured angle of throttle by wire between the use of DC and BLDC motors. The up-down or wide open and close throttle test results on a DC motor when the throttle angle is 90° to 0° require a short time. However, there is a reasonably large undershoot. At the same time, the BLDC motor shows good results without overshoot and undershoot, even though the delay time is longer. Then DC motors. Testing ramp with step on throttle by wire using a DC motor and BLDC shows excellent results with a fast response time without overshoot and undershoot. Besides, the ramp test results show that using the BLDC motor is more responsive in adjusting the opening and closing of the throttle valve. [ABSTRACT FROM AUTHOR]

This study aims to determine the effect of material on heat distribution in the design of battery pack cases in the Garuda Kencana 2022 electric car. The type of research used is experimental research with the subject material used in battery pack cases on the Garuda Kencana 2022 electric car. It uses SolidWorks Flow Simulation software to determine the airflow that helps heat distribution from the battery to the battery pack case material. Three materials were tested: Aluminum, Magnesium, and Zinc. The data analysis technique used to process the test data is descriptive analysis. The results of this study indicate the distribution of heat in the material, with the presence of airflow that helps heat distribution. The material that can experience the best heat distribution is Aluminum, with a maximum temperature of 49.69°C at a battery temperature of 60°C [ABSTRACT FROM AUTHOR]

The increasing population of electric cars is predicted to bring about a future transportation trend that is more environmentally friendly. However, problems with electric vehicle technology still arise related to their performance and durability. This study aims to determine the characteristics of BLDC electric motors for electric vehicles in terms of changes in battery performance. This study uses a modeling approach with an experimental design. The modeling uses simulink software to test the effect of changes in battery performance in terms of voltage and battery capacity on the performance of electric motors in terms of vehicle speed, vehicle mileage and battery current. The modeling results show that the Ni-MH battery has the best performance, the second is Li-Ion and the last is Lead Acid. Various types of batteries tested have the same characteristics when the SOC is below 20% the effective voltage of the battery will drop drastically. [ABSTRACT FROM AUTHOR]