Feedback Linearization-Based Control Approach for Air System of a Turbocharged SI Engine: Toward a Fuel-Optimal Strategy
Résumé
Combining turbocharging with downsizing has now become a key technique for automotive engine to improve its performance as fuel economy and drivability. The technology potential is fully exploited only with an efficient air path management system. In this context, the present work addresses a novel control design based on feedback linearization for the turbocharged air system of a SI engine. Two control strategies have been investigated for this complex system: drivability optimization and fuel reduction. The effectiveness of the proposed approach is evaluated via an advanced engine simulator.