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태양광발전기와 변속기를 장착한 저속 전기차의 개발과 활용
엄기증(Gi Jeung Um),정천기(Cheon-Kee Jeong),신광문(Kwang Mun Shin) 한국에너지기후변화학회 2019 한국에너지기후변화학회 학술대회 Vol.2019 No.11
At present, major countries in the world are actively pursuing environmentally friendly automobiles to improve the air quality and reduce oil consumption for national security. In addition, interest in low-speed electric vehicles (NEV) is increasing due to the steady increase of single-person households and the incidence of near-field mobility in farming, fishing villages, and urban areas. [Speed <= 60km/h, Weight <= 1,361kg (Including batteries)] Currently, most low-speed electric vehicles in developed countries such as the US use 72V (12V×6) of battery power and operate at maximum speed (40km/h) and mileage (30 ~ 50km) / 1 time charging. Charging time (4~6 hours), battery life (about 1,000 cycles), lowest price (approx. 12 million won), low-speed charging method using single-phase power for home is the mainstream. It has been pointed out that the decrease in energy efficiency of vehicles can be a limiting factor for the expansion of supply. Given the low-speed EV market, which is expected to continue to grow in the future, real-time charging (RTC) while moving and stopping enhances user convenience, improves access to insufficient charging infrastructure, and extends life, distributes power. There is a need to improve the energy efficiency of the entire low-speed electric vehicle (NEV) system using an improved transmission and solar charging device.
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