Driving force control device for a vehicle

A driving force control device for a vehicle, comprising:

• wheel speed sensor for detecting a wheel speed;
• and
• at least one processor, the at least one processor configured for:
• estimating, based on the wheel speed, a sprung vibration to be generated in a pitch direction of a vehicle body due to an input from a road surface;
• calculating a vibration suppression driving force for suppressing the estimated sprung vibration;
• calculating a target driving force acquired by adding the vibration suppression driving force to a driver required driving force to be set depending on a driver required acceleration/deceleration;
• controlling a driving force to be generated on a wheel in accordance with the target driving force;
• calculating, based on the driver required acceleration/deceleration, an error indication value representing a magnitude of an error, which is included in an estimation of the sprung vibration and is generated by a change in a vehicle body speed;
• and
• decreasing, based on the error indication value, the vibration suppression driving force to be added to the driver required driving force in a case where the error indication value is greater than a threshold.