機関, CVT統合制御における制御方法の比較, 検討

概要

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In the consolidated control, so-called "drive by wire", for an automobile engine power train system, there are two manipulated variables: throttle valve angle (θ) and CVT gear speed ratio (R_m). These two manipulated variables both affect the automobile speed (n_v). Therefore, in order to keep the desired engine operating condition under the n_v commanded by the driver, the control theory such as the decoupling control on multi variable input-output control is necessary. On the other hand, there are two pairs of reference and controlled variables because of the existence of these two manipulated variables. This means that there are two subsystems inside the power train system. One of the pair must be n_v itself. As the other pair, R_m or engine speed (n_e) is most considerable. Reported here is the comparison of the consolidate control performances of 3 combinations of the adopted control theory and another pair of variables. Results showed that decoupling control with n_e was excellent.
1992-01-25