Abstract
The problem of estimating the parameters of the dynamic systems, which make their quality characteristics fall within the given quality standard, was delt as a satisfaction problem and a method for solving this problem was developed in the previous work. In this research, on the basis of this work, we propose the theory for the parameter improvement system with two-level structure which can estimate many parameter values of the large-scale, complex and dynamic systems more effectively. Furthermore, for the purpose of settling the fundamental abnormal injection problem of the fuel injection system of the diesel engine, which has not been solved in the field of mechanical engineering, we apply this theory to the mathematical model described by the large-scale and complex differential equations and dvelop the parameter improvement spstem which can improve many design values of the injection system sequentially with the system simulation. By this method, we can obtain the satisfactory solution effectively and demonstrate that this method contributes to the quality analysis and improvement in the quality design system.
