内燃機関の制御における非線形対応についての検討

概要

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Parameters of an internal combustion engine, such as the time constant of an air intake system, dead time of the combustion period, plant gain of throttle valve angle and inertia of moving parts, are variable depending on their point of operation. Parameters also vary due to aging of the plant or change of atmosphere. It is complicated, however, to compensate for the change of parameters, namely nonlinearity, in the control of engines. Recently, the H_∞ controller and Fuzzy controller, which have excellent robustness against nonlinearity, have been applied. In this study, the H_∞controller is adopted for engine torque control and is compared with the fuzzy controller and PID controller in terms of robustness. As a result, it is shown that the H_∞ controller has the best robustness when dead time is varied, but no robustness against variation of plant gain. By contrast, the fuzzy controller has the opposite characteristics.
一般社団法人日本機械学会の論文
1994-04-25