Characteristic Analysis and Designing of 3kW E-Booster and Motor Drive

As the number of motors used in vehicles increases, the battery voltage of the vehicle is also being proposed from the conventional 12V to 48V. Most of the electric superchargers that boost the engine efficiency of the vehicle use 12V and rotate at ultra-high-speed. However, when 12V is used, there is a problem of loss due to high current and ultra-high-speed. Therefore, in this paper, we compared the characteristics by designing a conventional 12V ultra high speed electric supercharger and geared 48V high speed electric supercharger. We also analyzed the controller as well as the motor, and showed that the proposed model is superior in terms of integrated size and efficiency.