Research On Control Strategy Of Non_declutch AMT

Automated Mechanical Transmission(AMT) is developed on the basis of technical improvements on Manual Transmission(MT). Electronic control technology and automatic transmission technology are applied to the structure. Transmission control unit makes a coordinated control on engine, transmission and motor to realize the auto-shift process. Compared with other forms of automatic transmissions, it not only maintains the advantages of Manual Transmission(MT) of the high efficiency, simple structure, compact structure, low cost and easy to manufacture, good product inheritance, but also has the advantage of auto-shift. In a word, Automated Mechanical Transmission(AMT) is an important tendency of the auto-shift. But, for the Automated Mechanical Transmission(AMT) of the traditional form, separation and engagement of the clutch affects the power performance of the vehicle. Then, the thesis indicates the theme of non-declutch AMT that is a new way to solve the problem of the control on the clutch of traditional AMT.The main contents of this thesis are listed as follows:(1) Technology of non-declutchFor the technical difficulties of traditional AMT, the thesis presents the idea of non-declutch. It explains the structure and working principle of the non-declutch. And then, it extracts the key technologies to determine the main contents of this thesis.(2) Shift decision-making systemThe thesis firstly through analyzing and comparing performance characteristics of single parameter, two parameters and three parameters, researches on the vehicle dynamics to develop shifting curves for optimum power and best economy.(3) Control strategy of non-declutch AMTThe paper proposes the functional requirements of non-declutch AMT, and studies on the control strategy of non-declutch AMT(4) Electronic Control Unit of MotorThe thesis indicates the functional requirements of non-declutch AMT, and according to the control strategy of non-declutch AMT, it determines the control algorithms and control parameters through the simulation model of motor controller.