Research On The Decomposition Technology Of Configuration Design For Bus Information Integrated Control System

The bus information integrated control system is a real-time networked control system, with the bus as object, the CAN as information transmission channel, and the functional integrated control as goal, which can achieve the information share between all ECUs and electrical devices,In addition, there are characteristics such as the combination of product composition, the similarity of control module and correspondence of the information transmission and ect. Therefore, configuration design is identified as an appropriate means to realize the development of the system. This dissertation is mainly focused on study of the decomposition method of configuration design for bus information integrated control system, which is in an attempt to impove the quality and efficiency of the development of the system and to respond to the demands of customers quickly. The key research contents of the dissertation are as follows.(1) Based on analyzing the decomposition of configuration design and its key problems to be solved for the bus information integrated control system, the decomposition model of it is built. On the basis of the Ontology Modeling Method, the hierarchy of concept and relation model in the information of partition unit is structured, and the expression rules of information granularity for partition unit are given. By researching on the main types of decomposition process model, the typical structure of the process model is put forward.(2) Based on analyzing the fractal characteristic of information and structure of configuration design for bus information integrated control system and describing the rules and methods of information decomposition for partition unit, the solution of full and local fractal structure in decomposition of configuration design process for bus information integrated control system is established. Moreover, the implementation model and the implementation mechanism of decomposition process are proposed.(3) Though study of the principles of demand decomposition of configuration design for bus information integrated control system, the custom demands are decomposed. By combining the Object-oriented with first-order logic method, the demand information is described. On the basis of this, the structure of decomposition function tree is formed by using hierarchical method. What's more, the description model of function information is constructed by the modeling language EXPRESS.(4) Aiming at the decomposition process of configuration design for bus information integrated control system, evaluation indexes are structured; Based on the theory of fuzzy matter element, evaluation process of the decomposition process of configuration design for bus information integrated control system is studied. Thus, a evaluation system of the decomposing scheme is developed in configuration design for bus information integrated control system.Finally, on study of a specific example of the bus information integrated control system, the method of engineering application effects is researched, and the correctness of results is testified, by which its effectiveness is well proved. The results of the research can be applied not only for the configuration design for bus information integrated control system but also for the other similar products.