There are several ways to improve the mileage of the electric vehicle (EV). High-efficiency drivetrain and high energy density are the main factors. Energy storage source for EV obtained from the battery, ultra-capacitor (UC) and fuel cells (FC). Each of that has own characteristics and capacity. The battery has a good energy density, UC and FC are superiors on power density. Combining some of the energy storage will improve performance and mileage. On this paper, the topology of combining energy storage are reviewed. In addition, also review the power management strategy of hybrid energy storage. By using a convenient strategy, hybrid energy storage becomes very worth.
The energy cost of electric vehicles is reportedly less than its internal combustion engine counterpart due to using technologies to boost efficiency through regenerative braking. Based on this condition, a possibility of its implementation as vehicles in ride-sharing applications is observed. Therefore, this study aims to analyze the benefits of electric vehicle implementation to ride-sharing platforms in Indonesia. An electric motorcycle was used in this study as a vehicle for daily ride-sharing activities. In addition, the rider often used an internal combustion engine motorcycle. The study focused on the economic benefits obtained by the rider through swapping the ICE motorcycle with an electric scooter. Also, it used observation data for two months by utilizing electric motorcycles. Before using this vehicle, a comparison was additionally conducted based on the amount of money received by the rider. Furthermore, potential drawbacks were considered, such as battery charging durations and range of travel per day. The questions in this study included the following, "Are there any compromises that should be conducted by the rider to use the electric motorcycle for ride-hailing purposes?". Therefore, the results obtained in this study are expected to provide answers to these questions. Based on the data comparisons, a rider saved up to 68% of their income by using an electric motorcycle, compared to an ICE vehicle. It was also found to be similarly practical as the ICE counterpart for ride-hailing. Moreover, the electric motorcycle effectively served the customers' requirements as conducted by the ICE vehicle regarding orders and trips traveled. To further enhance the benefits of economic riders, a battery swap station should be readily available to prevent charging for 3-4 hours. By utilizing this station, the personal productivity of the electric motorcycle increased to 100%. Therefore, electric motorcycles successfully met the expected standards by creating substantial unique economic benefits and providing a more environmentally friendly vehicle without any losses. Th study was used as evidence for those interested in adopting the electric motorcycle to improve personal economic benefits. The government also used it to set up momentum to accelerate electric motorcycle adoption in Indonesia.
This paper deals with comparison and analysis of stator plate holder on Yokeless and segmented armature (YASA) machine. YASA topology consists of two rotors and one inner stator comprised of many independent segments. Core for stator uses Soft Magnetic Composite (SMC) to conduct the three-dimensional magnetic flux. All stator segments and concentrated winding are fixed with the aid of two annular plates. There are cavities on both plates which have the same shape as the shoe of the stator segment. Moreover, the deformation of the plates must be kept as low as possible and have very high yield strength because of stress from the bearing. A complex structure, high durability, and high electrical resistance are the challenges. Polyetheretherketone (PEEK) is usually used as the plates, however high price and manufacturing cost remain an issue. Some other materials have a possibility and approach to PEEK capability. In this paper, candidate materials will be developed as a specimen and tested on the BH - Curve meter. The BH-Curve data provide simulation on Finite Element Magnetic Method (FEMM). The advantages and disadvantages are discussed in this paper. The analysis result demonstrates that other materials possess a similar capability as PEEK related to YASA stator plate holder.
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