Apparatus and method for controlling active air flap

摘要

A method of controlling an active air flap, includes detecting a location of a vehicle from a GPS signal received through a GPS receiver, and acquiring a road surface gradient of a road on which the vehicle travels from location information of the vehicle and map information stored in a data storage, by a controller, determining an opening degree setting value corresponding to the road surface gradient of the road, by the controller, outputting a control signal for controlling an opening degree of an air flap according to a setting value, by the controller, and controlling the opening degree of the air flap by operating an actuator according to the control signal.

主权项

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.