철도차량용 전기기계식 제동시스템의 비상시 대처방안 연구

초록

Today, pneumatic brake systems are mostly adopted to railroad vehicles for fail-safe function that engages autonomous emergency braking, where the brake pipe pressure is lowered. However, since there are existing performance limitations in pneumatic brake systems, existing researches are on hydraulic or electromechanical brakes (EMB) as an alternative. The EMB system can reduce the reaction distance and enhance the reliability. However, even in emergency, such as train detachment or black-out, a proper method is required to stop vehicles. Thus, this study demonstrates the safety method (fail-safe and redundancy plan), which can be applied to emergency situations (train detachment and black-out). By applying the safety method to function requirements, the EMB system can effectively improve the safety of the railroad.