TORQUE CONTROL OF A VEHICLE POWERTRAIN BASED ON A TIME DERIVATIVE FOR A DYNAMIC TORQUE

摘要

According to the present invention, the dynamic torque provided from the vehicle to the output shaft of the engine from the current value to a new desired value ( The desired change in the time derivative of) is determined. Current rotation speed difference ( ) Is the first rotational speed in the vehicle ( It is determined between a first end of the power train rotating at) and a second end of the power train rotating at a second rotational speed. After that, the first rotational speed ( ) Is the dynamic torque ( The desired value of the time derivative for ), the spring constant (k) related to the torsional compliance of the powertrain, and the determined current rotational speed difference ( ) On the basis of. Through the control of the first rotational speed, the present value of the time derivative for the dynamic torque is also indirectly controlled toward the desired value.