Air Path Dynamics Control and Efficiency Optimization for Gasoline Engines with EGR

摘要

This paper presents a control design approach of efficiency optimization while providing the desired torque under the constraint of combustion variation for gasoline engines with EGR based on the nonlinear control-oriented model. Mainly, the first phase of control design is the equilibrium point optimization under the chance constraint of IMEP probability distribution with a scenario approach, and the second phase is nonlinear dynamic feedback stabilization control design for improving transient performance of the state regulation. The experimental validations on the engine test bench demonstrate that the control scheme can achieve stable combustion and fast transient control performance.