Simplified Design Method of Slip Control System for Torque Converter Lock-up Clutch (2nd Report, Controller Design Method)

Abstract

A model-based control such as H-infinity one makes it possible to make a robust controller design taking non-linearity and characteristic variation of the plant into consideration. There is, however, a problem of requiring much time to perform the procedure from the modeling to the designing of the control system because of the need for a strict analysis of the phenomena to obtain a practicable model. In previous paper we proposed new design method and explained the modeling technique. This method enables to shorten the design time by representing the plant model by interpolation of vertex characteristics and construct the control system on an onboard ECU when it is possible to determine the plant characteristics from the data and knowledge accumulated in the past. In this paper we aim at controller design based on the above method, and show that the total time for design has been shortened greatly as compared with the conventional method in torque converter lock up clutch slip control systems.