Patent ID: 9533566
Date: 2017-01-03
CPC Classifications: B60K,B60W,G01S,Y02T

Claim:
1. An apparatus for controlling an active air flap, the apparatus comprising: a global positioning system (GPS) receiver for receiving GPS signal; a data storage in which map information is stored; a controller for detecting a vehicle location from the GPS signal received through the GPS receiver, acquiring a gradient of a road surface corresponding to the vehicle location from the map information, and outputting a control signal for setting an opening degree of an air flap to a setting value according to the gradient of the road surface; and an actuator for actuating the air flap according to the control signal of the controller, wherein the controller further acquires intake air negative pressure detected by an intake air negative pressure detector, outputs a control signal for controlling an opening degree of the air flap with an opening degree setting value obtained according to the intake air negative pressure together with the road surface gradient, and wherein the opening degree setting value is set to a value for a fully closed state in a range in which the intake air negative pressure is a first reference pressure or more, and the opening degree setting value of the air flap decreases as the intake air negative pressure increases in a range in which the intake air negative pressure is more than a second reference pressure.