Abstract
In recent years, various electronic control devices have been used in order to improve the performance of cars. One purpose is to make the driving comfortable. In automatic transmission cars, torque fluctuation occurs due to gear shifting, this worsens the drivability. In this research, we try to reduce the fluctuation of output torque of transmission via feedback control. H∞ control theory is used in the design of control system. The effectiveness of the designed control system is verified by experiment.
