Drive force control system for vehicle

A drive force control system for a vehicle that controls a drive force to propel the vehicle in which a first powertrain includes a motor as a prime mover and a power transmission device that transmits an output torque of the motor to a pair of drive wheels to imitate behaviors of a model vehicle in which a second powertrain includes a prime mover and a transmission that transmits an output torque of the prime mover to a pair of drive wheels, the drive force control system comprising:

• a controller that controls the output torque of the motor, wherein
• the controller comprises:
• a drive torque simulator that models the behaviors of the model vehicle and is configured to compute a virtual drive torque corresponding to what would be delivered to the drive wheels of the model vehicle in response to a manual operation of a driver to manipulate the vehicle, based on at least one of torque changing factors including a second inertia moment, a second elastic coefficient, and/or a second attenuation coefficient of the second powertrain of the model vehicle;
• and
• an actual torque calculator configured to compute a target torque of the motor that is practically delivered from the motor to the drive wheels in the vehicle based on the virtual drive torque computed by the drive torque simulator, taking account of at least one of torque changing factors including a first inertia moment, a first elastic coefficient, and a first attenuation coefficient of the first powertrain of the vehicle,
• the transmission of the model vehicle includes a manual transmission that changes a speed ratio between the prime mover and the drive wheels in response to a manual shifting operation, and
• the vehicle comprises a shifting device that is operated by the driver to select the speed ratio of the manual transmission.