Non-steady-state Conditions Control of the Non-linear Model-Based Engine

A non-linear model is set up for engine transient operating condications. Both sliding model controller and PID controller are designed to realize adaptive regulation of throttle opening and ignition timing respectively. The results of simulation on engine idling show that the amplitude of engine speed fluctucation is less than 6 r/min, indicating that the non-linear model built is appropriate for the control over the transient operating conditions of engine.