Air intake control system for engine and method of controlling the same
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorJae Pil Lim
Life of this patent
Estimating the term…
Abstract
An air intake control system for an engine, which is disposed in an intake line between a compressor of a turbocharger and an intake manifold and adjusts and controls air intake may include a motor for providing torque, a bypass line with a first end connected to the intake line and a second end connected to an external air line for delivering external air into the compressor, and a flow control valve assembly disposed at a divergent point from the intake line to the bypass line and selectively distributing air intake from the compressor to the intake manifold and the bypass line by adjusting a degree of opening of valve members in accordance with an amount of revolution of the motor.
Claims9
A method of controlling an air intake system for an engine, the air intake system comprising an intake line between a compressor of a turbocharger and an intake manifold, a bypass line with a first end connected to the intake line and a second end connected to an external air line for delivering external air into the compressor;
- and a flow control valve assembly disposed at a divergent point from the intake line to the bypass line and selectively distributing air intake from the compressor to the intake manifold and the bypass line by adjusting a degree of opening of valve members of the flow control valve assembly, the method comprising:
- measuring positions of the valve members of the flow control valve assembly;
- feedback-controlling the degree of opening of the valve members by determining the degree of opening of the valve members from the positions of the valve members and by operating a motor such that the degree of opening of the valve members is consistent with a desired degree of opening for controlling desired boost pressure of the engine after the engine starts,
- determining at least one error in the control system;
- wherein a first error of the at least one error in the control system is determined in response to a first error signal while the valve members are controlled, the first error signal corresponds to a difference between the degree of opening of the valve members and the desired degree of opening being a reference valve or more and a duration of the difference is a first reference time or more;
- and
- in response to the first error of the at least one error in the control system being determined, scrapping the valve members to clean the valve members.
Dependencies are inferred from the claim text.