Patent ID: 9422871
Filing Date: 2016-08-23
CPC Classification: F02B,F02D,F02M,Y02T

Claim Text:
1. An apparatus for controlling a variable intake system, the apparatus comprising: a variable flap having an opening angle adjusted according to an operation region of an engine and to regulate an amount of air introduced into the engine; an engine RPM detecting unit configured to detect an RPM of the engine in a start-on state; a pressure detecting unit configured to detect an intake pressure of air introduced into an engine; a memory unit configured to store a target value of an intake pressure for an operation region of the engine and an opening degree of the variable flap as map data; a control unit configured to analyze an RPM of the engine to determine an operation region, and to apply the map data set in the memory unit and determine a target amount of air for the operation region and an opening angle of the variable flap according to the target amount of air to adjust an opening angle of the variable flap; an actuator driven according to a current control signal applied by the control unit and configured to adjust an opening angle of the variable flap; and a position detecting unit configured to detect an operation position of the actuator to provide the detected operation position to the control unit as feedback information, wherein when the operation region of the engine is a low-speed/low-load condition, the control unit determines that the operation region of the engine is a noise performance region, and applies the map data set to reduce intake booming and determines a target amount of air and an opening angle of the variable flap according to the target amount of air to adjust an opening angle of the variable flap.