TIRE FORCE ESTIMATION SYSTEM AND TIRE FORCE ESTIMATION METHOD

A tire force estimation system includes a sensor, a sensor information acquisition unit, and a tire force calculator. The sensor measures a physical quantity of a tire. The sensor information acquisition unit acquires the physical quantity measured by the sensor. The tire force calculator includes an arithmetic model for calculating tire force F based on the physical quantity, and calculates the tire force F by inputting the physical quantity acquired by the sensor information acquisition unit into the arithmetic model.