| Intellectualized vehicular automatic transmission greatly improves vehicle dynamic characteristics ,efficiency and greatly alleviates the driver' s working intensity. This dissertation is to study some essential technical problems of automatic transmission. The development process of electronic control automatic transmission is introduced, and the main research contents of automatic transmission technology are sorted. The dynamic models of the powertrain and its parts are established through theoretical analyzing and system identification, the performance of the vehicle is predicted based on the vehicle mass, the driving resistance and power train model. The feather and the function of vehicular intellectualized shift system are detailed analyzed. The character and intention of the driver and the informative resources of intellectualized shift system are also studied. After researching the fuzzy shift strategy and the course of shift, the main principle of fuzzy shift is determined, then the fuzzy adaptive shift system is realized by adjusting the fuzzy normalized parameter; the shift control strategy is established. And the fuzzy -neural network is also studied, model of gearshift fuzzy-neural network control is established too. Taken BARO 1.8 as an example, the shift rule curve is gotten through the data flow analysis by the V.A.G1552 diagnosis instrument, and it is anal sized as well. As the summary of the whole dissertation, its main research achievements is elaborated...
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