Electric suspension device

An electric suspension device including an actuator that is provided between a body and a wheel of a vehicle and generates damping force for damping vibration of the body, the electric suspension device comprising a load control electronic control unit (ECU), wherein the load control ECU is configured to:

• acquire information on each of a wheel speed and a sprung speed of the vehicle;
• estimate a stroke speed of the actuator based on the wheel speed;
• determine, based on a difference between a vehicle speed of the vehicle and the wheel speed, whether a slip of the wheel has occurred;
• and
• perform orientation control of the vehicle based on the sprung speed and the estimated stroke speed,
• wherein in a case where the slip of the wheel is determined to have occurred, perform orientation control of the vehicle based on a fixed stroke speed whose direction is the same as a direction of the sprung speed and whose magnitude is set at a predetermined fixed value, instead of the estimated stroke speed.