Spark Ignition Engine Torque Management

Spark Ignition Engine Torque Management

G. Ingram, M. Franchek, V. Balakrishnan, and G. Surnilla

In Proc. American Control Conference, Denver, CO, June 2003


Abstract: Presented in this paper is a robust feedback controller design process to regulate the torque of a spark ignition engine equipped with an electronic throttle mass air flow controller. A system level model of engine torque production is experimentally determined. In addition, an H-infinity controller is designed to control engine torque with zero steady state error while addressing the nonlinear system characteristics and pure delay. The controller design methodology applied to the torque control problem is discussed and an interpretation of the controller presented. Engine dynamometer data demonstrates the H-infinity controller successfully rejects noise and disturbances while meeting preliminary transient and steady state performance objectives.
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