VIBRATION DECREASING ALGORISM FOR NON TORQUE CONVERTER TYPE VEHICLE

摘要

In a vibration reducing algorithm for a vehicle without a torque converter according to the present invention, the required torque is divided into two torque types depending on the driving state of a vehicle. One of the two torque types is provided as a feedforward input value. A half cycle (T_p/2) is selected in a cycle (T_p) of vibration of a driving system for a vehicle. After the half cycle (T_p/2), the same torque as above is applied to damp the vibration, thereby highly reducing the effort on heuristic calibration based on feedback information through a feedforward step and increasing starting acceleration. [Reference numerals] (S10) Start vibration damping control;(S20) Required torque (TQ_f);(S30) Is rapid acceleration required?;(S40,S60) Is it a step torque?;(S50,S70) Calculate T_p from the speed and vibration elements of a motor;(S80) Add the same type of torque at a time passing T_p/2 after the initial torque is applied;(S90) Finish a feedforward control step