Patent ID: 8108123
Filing Date: 2012-01-31
Classification: F02D

Abstract:
1. A sliding mode control unit for electronically controlling at least one air handling actuator of an internal combustion engine, the engine having an intake manifold and an exhaust manifold, and the engine having means for providing, during engine operation, current engine speed values, current accelerator position values, and current manifold state values, the manifold state values being intake and exhaust manifold pressure values and intake and exhaust manifold oxygen values, comprising: a memory for storing a map of engine speed values and accelerator pedal position values to desired air handling actuator setpoint values; a memory for storing a map of engine speed values and accelerator pedal position values to desired manifold state values; processing means for differencing the desired manifold state values and the current manifold state values, thereby obtaining error values; processing means for using a sliding mode control algorithm to compute flow change values, based on the error values; an actuator controller for computing actuator change values, based on the actuator flow change values; and processing means for calculating the difference between desired air handling actuator setpoint values and the actuator change values, thereby generating actuator command values.