Patent ID: 8712636

Claim:
A vehicle drive control system comprising: a motor configured to generate a running driving force of a vehicle; a rotational speed detector configured to detect rotational speed of the motor; an accelerator opening degree detector configured to detect an opening degree of an accelerator of the vehicle; a vehicle speed detector configured to detect a speed of the vehicle; a torque instruction outputting device configured to output a torque instruction for the motor in accordance with a required driving force based on the accelerator opening degree detected by the accelerator opening degree detector and the vehicle speed detected by the vehicle speed detector; an attenuation filtering device configured to perform attenuation filtering to the torque instruction to attenuate a natural oscillation frequency component of a torque transmission system of the vehicle and configured to output a filtered torque instruction after the attenuation filtering, the attenuation filtering device being configured to identify an attenuation characteristic of the attenuation filtering if the motor is in a first state in which the rotational speed of the motor is smaller than or equal to a predetermined rotational speed and in which the torque of the motor is higher than or equal to a predetermined torque, the first state comprising a state in which natural resonance of the torque transmission system is likely to be induced; and a controller configured to cause the motor to generate a torque corresponding to the filtered torque instruction.