Application of Model Reference Adaptive Control to Internal Combustion Engines

Abstract

Internal combustion engine has characteristic of non-linearity and time-variability. Therefore, optimalizing control is the best way to realize the maximum value of relevant perforemance index of internal combustion engines. Optimalizing control brings, however, a variation in indicated work of the combustion chamber as well as a variation in the performance index itself. So, the regulator system to compensate such a variation is essential for these control system. Reported here is an application study of the model reference adaptive control theory for a regulator system, carried out with both aspects of model simulations and real engine operations. As a result, smooth real engine operation by the model reference adaptive control and a good agreement between the model simulation and real engine operation behaviors were confirmed.