Research On Design And Evaluation Method Of Integrated Control System Of Mechanical-electric Transmission System

With the development of technology and rapidly increase of produces' electrification and intelligence,the control system is more and more widely used in all aspects of social life.How to design a low cost,short development time,excellent performance of the control system has far-reaching significance,but also become a difficult problem in front of people.Although,recent years,a variety of design methods have been applied to the control system field and made some progress,the issues that the design method is not mature and the design process is not standardized,are still outstanding.Integrated control system is the key component of the mechanical-electric transmission system,whose performance directly related to the function of the transmission system to achieve and enhance the performance.It is very significant to make research on the design method and process of mechanical-electric transmission integrated control system to develop the efficiency,to increase the control effect and to realize the development of serial products.Based on the mechanical-electric transmission system,this paper makes study on the design and evaluation method of integrated control system,which includes control system design method,process research and comprehensive performance evaluation analysis.In this paper,it introduces the principle and characteristics of the traditional electronic control system development method,model-based design method,System engineering design method and model-based system engineering method.According to the feature of mechanical-electric transmission integrated control system,model-based system engineering method is used to make research on the domain of the requirement analysis,organization structure,function design,system integration,system testing and system calibration.It formats a set of scientific design and perfect development process that are suitable to mechanical-electric transmission integrated control system.The organizational structure of the study includes the design of hardware architecture,software architecture design and control strategy architecture design.Functional design includes hardware design and software functional design.According to the proposed design methods and processes,the thesis research the requirement analysis,control strategy of architecture design,function design and system integration and calibration of mechanical-electric transmission integrated control system which bases on the frame of 45 ton mechanical electronic transmission and Rule based control strategy.An analytical model of driver's intention is proposed based on the demand analysis of the cycle,which improves the accuracy of the integrated control system to the driver's demand,and ensures the vehicle power performance and the driving performance.This paper researches the comprehensive evaluation method of multiple performance objectives on integrated control system.Based on the research at analytic hierarchy process(AHP),fuzzy comprehensive evaluation method,artificial neural network method,grey relational degree algorithm(GRA),it proposes AHP-GRA that is used to establish the multi performance evaluation system,such as dynamic property,economical efficiency power supply performance of power battery and comfort and evaluation model of mechanical-electric transmission integrated control system.The evaluation model is used to establish the rule based control strategy and based-on dynamic optimal control strategy of 30 tons mechanical-electric transmission integrated control system.The evaluation results are compared with the simulation results,which verify the applicability of the evaluation model.