우천 시 서울메트로 신형 VVVF 전동차(2,3호선)의 슬립현상에 관한 연구

A Study on SLIP actual condition of rainy day at the time of Seoul Metro new style VVVF Inverter Rolling Stock (2,3 lines)

Recently, the Seoul Metro has replaced the old series of Line No.2 and 3 to the new ones. In spite of the replacement, the new ones are more likely to be slippery compared to the old ones. Because the subway system has such short intervals, delayed subways influence the whole line systems, especially during the rush hours. And the slip causes the delay. Therefore we are willing to find out the reason why the new ones are more defective and we will try to mince it from the view of mechanical aspects and handling aspects of driving.