Adaptive control system for electrohydraulic camless engine gas valve actuator

If realized, the camless internal combustion engine offers significant advantages over the engines on the market today in the areas of efficiency, fuel economy, and emissions reduction (Ashhab et al., 2000; Demmelbauer-Ebner et al., 1991; Gould et al., 1991; Lenz et al.; Stone and Kwan, 1989). In previous work completed, a mathematical model of an electrohydraulic gas exchange valve actuator was created. For this system to be useful, the ability to control it must be demonstrated. Using a cosimulation approach, an adaptive controller was developed and simulated. The results from these simulations showed that the controller was able to converge on the desired output.