Second Order Sliding Mode based Speed Tracking Control for Torque Management of Gasoline Engines

The purpose of speed tracking control is to keep the engine speed at prescribed set-points in the presence of disturbances. Engine speed depends on the torque demand and load torque acting on the engine. In this article, speed tracking control technique is proposed for torque management of the gasoline engine. Smooth Super-Twisting Algorithm based control scheme is developed to robustly achieve the desired objective. Instead of Mean Value Engine Model, the novel First Principle based Engine Model is used to implement the proposed methodology. The injected fuel mass flow rate is employed as control input to track the engine speed. Simulation results demonstrated validity of the proposed control technique.