Engine Idle Speed Control Using Nonlinear Sliding Mode Controller and Observer

비선형 슬라이딩 모드 제어기 및 관측기를 이용한 엔진 공회전 제어

In this paper, an integrated nonlinear sliding mode observer and controller has been designed in order to control of an automotive engine idle speed. The primary objective of the engine idle speed control is to maintain the desired engine idle speed despite of various torque disturbances via estimating air mass flow at the location of the injector in intake manifold by using a sliding mode observer. Simulation results show that the case where both throttle angle and ignition time are used as control inputs outperforms the case where just only throttle angle is used as a control input.