4륜구동 접이식 초소형 전기자동차 개발을 위한 In-wheel 모터 제어 시험장치 개발과 해석

다국어 초록 (Multilingual Abstract)

As air pollution problem and scarcity of natural resources have been a big issue throughout the world, electric vehicle became alternative to the combustion engine driven vehicles. While lots of research and development are performed on electric vehicles, including charging infrastructure test bed launches, the micro-size electric vehicle is recently considered as a new urban transportation mode. In addition, a foldable body concept applied to the micro electric vehicles can be considered as an innovative design in automotive industry. With the foldable body powered by electric motors, the in-wheel electric motor design can provide huge benefit in design of the vehicle. In this paper, a motor performance test rig has been built with the in-wheel motor assembly in a wheel. The main objective of the test rig is to verify the motor control algorithm and design with a single set of the in-wheel motor assembly. The test rig system is composed of a surface mounted permanent magnet synchronous motor installed in a wheel, a load motor drive system, DC power supply battery system, and a motor controller. The dynamic model for the drive and load motor has been established in order to obtain the dynamic response characteristic of the test rig system.