Fault diagnosis apparatus for brake of train and automatic train operation equipment due to the reduction braking performance using the same and fault diagnosis method for brake of train

An automatic train operation system operated due to braking performance degradation, comprising:

• a brake fault diagnosis unit to diagnose a fault status of a brake of a train;
• a travel speed profile generator configured to generate, when a fault occurs in the brake of the train, a degraded mode travel speed profile such that the train moves to a stopping point at a speed within a speed limit through a powering operation or a coasting operation;
• and
• a travel speed controller configured to control a travel speed of the train according to the travel speed profile,
• wherein the degraded mode travel speed profile comprises:
• a powering profile for powering the train up to a degraded mode speed limit, the degraded mode speed limit being lower than the speed limit;
• a constant speed profile for repeating the powering operation and the coasting operation to maintain the train at the degraded mode speed limit;
• and
• a coasting profile for stopping the train at a stopping point through the coasting operation.