Suspension control device and suspension control method

A suspension control device that is connected to a sensor that acquires information regarding a vehicle or surrounding information of the vehicle, and calculates a suspension control value for controlling a variable damping force of a suspension of the vehicle based on the information acquired by the sensor,

• the suspension control device comprising:
• a processor, a memory, and a storage, the processor configured to perform:
• a vibration generation function that generates a vibration expected to reach the vehicle based on the information acquired by the sensor, the information including a road surface of the vehicle;
• a frequency determination function that determines a frequency of the vibration expected to reach the vehicle generated by the vibration generation function;
• a sampling processing function that samples a vibration waveform representing a topography of the road surface of the vehicle of the vibration expected to reach the vehicle by changing a time width for sampling the vibration waveform of the vibration expected to reach the vehicle according to the determined frequency of the vibration expected to reach the vehicle generated by the vibration generation function;
• and
• a control value calculation function that calculates the suspension control value based on a sampling value of the vibration waveform sampled by the sampling processing function,
• wherein the sampling processing function samples the vibration waveform representing a topography of the road surface of the vehicle according to a predetermined number of sampling values regardless of the time width, and
• wherein the suspension control device controls the variable damping force of the suspension based on the calculated suspension control value.