Design Of Automatic Transmission Hydraulic System Based On Logical Analytic Method And Study On The Shift Schedule

In foreign automotive automatic transmission it is in advanced stages of development, but in our country due to the development of automotive technology level of lag, many projects just starting soon. Our country is still lacking in the ability to design and research of the automatic transmission, especially in the electronically controlled hydraulic system of research, we have not formed a relatively complete analysis and design theory. This paper is the use of logical analysis analyzing hydraulic control system Honda automatic transmission, this paper analyzes the design electronically controlled automatic transmission hydraulic control system overall design concept and verify its legitimacy; In addition to the automatic transmission shift control simulation problems have also been analyzed.1.On the basis of the fundamental principles of the automatic transmission control under analysis using logical analysis to verify the feasibility of certain transmission hydraulic control system design, the use of theoretical derivation of logical analysis to design a feasibility electronically controlled hydraulic system design scheme based on some that need to know the working status of a shift actuator for each gear of the automatic transmission, you can use logical analysis to design a more comprehensive,viable and working with the shift actuator appearances corresponding electro-hydraulic control system Finally, also the use of logical analysis of the work of each state to design a shift solenoid valve can be analyzed to verify its legitimacy.Results for reasoning by logical analysis has drawn process of clear, well-organized and strong features.2.In the automatic transmission shift control aspects of the research, the traditional control methods and modern control methods are analyzed and compared, and introduce them to the basic principles. In order to make the shift control more perfect,more in line with people’s needs, modern control methods in advanced fuzzy control theory in the automatic transmission shift control. Finally, the establishment of an automatic transmission vehicle Simulink software simulation model by computer simulation to evaluate shift quality and shift control of the car, the results showed that the shift strategy formulated in line with the car’s power and economy, to achieve dynamic change block.