Equilibria and feedback for a hybrid model of idle speed control

The ever increasing demands on passengers' comfort, safety, emissions and fuel consumption imposed by car manufacturers and regulations call for robust techniques and the use of cycle-accurate models in automotive control. In this paper, we focus on such approach to control the idle speed. It is natural to resort to hybrid methodologies, because of the rich combination of time and event-based behaviors exhibited by a controlled engine. A hybrid benchmark problem is considered and addressed firstly by analyzing the equilibria of the system and then testing a simple hybrid feedback strategy.