A Robust Invariance Approach to Idle Speed Control of a Spark Ignited Engine

Abstract

Idle speed control of a spark ignition engine is studied via a control invariant approach. A hybrid system describes torque generation at cycle-level. The continuous-time dynamics is reset at prescribed crankshaft angles. Timediscretization allows to handle delays in the control loop and constraints on state and control variables in a simple form by means of a control invariant technique. The synchronization problem is solved by a robust extension of the same technique. Controller implements a piecewise-linear state-feedback law. Copyright c 2005 IFAC.

Dependable control of uncertain linear systems based on set-theoretic methods

“…With respect to the control design, a discussion of the invariance property of different polyhedral structures as well as the associated feedback controller has been presented in d' Alessandro and DeSantis (2001). A constructive method for control invariance of polyhedral sets (boxes) has been recently provided in Caravani and Girasole (2005).…”