Application of Fuzzy Control to Internal Combustion Engines

抄録

The characteristics of engine∼load systems are considerably nonlinear. Therefore, when feedback control is required in such a case as a diesel engine governor or cruise control for a gasoline engine, a countermeasure such as gain scheduling must be incorporated to compensate this nonlinearity. On the other hand, it is said that fuzzy control is very robust against nonlinearity. Thus, fuzzy control was applied to the governor of a diesel engine, and the level of robustness of fuzzy control was investigated in comparison with PI and LQI control methods. As a result, it was found that fuzzy control showed the highest level of robustness and a much faster control response compared with the two other methods of control.