A UNIFIED CONTROLLER DESIGN METHODOLOGY FOR SYSTEMS WITH CONTINUOUS AND BANG-BANG CONTROL EFFECTORS - American Control Conference, Proceedings of the 1995

A unified, systematic controller design procedure is introduced for the class of linear time invariant systems with use both continuous and bang-bang control effectors. The sampled-data regulator weighting matrices and cost function are extended to this class of system, and modulates the bangbang effector to achieve desired performance levels. Controller synthesis is illustrated for a generic second order plant with one continuous effector and one bang-bang effector. INTRODUCTION Real world control problems with challenging performance requirements can require dynamic systems to employ a combination of continuous and bang-bang control effectors. An example of this important class of system is the X-29A aircraft fitted with Vortex Flow Control (VFC) [l]. Figure 1 shows a block diagram for a generic control system of this type.