Patent ID: 8118124

Claim:
A fail-safe air flap control apparatus for a vehicle, comprising: a coolant temperature sensor measuring a temperature of a coolant of the vehicle; a control unit receiving a value measured by the coolant temperature sensor, comparing the measured value to a reference value, and generating a corresponding control signal; an actuator having a rotator rotating in a clockwise or counterclockwise direction depending on the control signal of the control unit; a movable unit configured for linear movement actuated by rotational force of the rotator of the actuator; a flap unit installed on an air flow channel through which air is drawn into a cooling module from a front side of the vehicle, the flap unit comprising: a flap housing having an air flow slot through which air passes; a flap door mounted to the flap housing so as to be rotatable to openably close the air flow slot; and a connecting rod extending from the flap door, the connecting rod being connected to the movable unit; an elastic member provided between the movable unit and the flap housing to apply elastic force to the movable unit in a direction in which the flap door is opened; and a solenoid unit provided on the flap housing, the solenoid unit being operated depending on the control signal of the control unit to restrain movement of the movable unit for maintaining the flap door in a closed state or to release the movable unit.