Wheel load estimation device

A wheel load estimation method for estimating a wheel load of a vehicle, the wheel load estimation method comprising:

• acquiring wheel speed information of each wheel included in the vehicle from a wheel speed sensor provided in the vehicle;
• calculating a front-rear load ratio and a left-right load ratio based on the wheel speed information, the front-rear load ratio being a ratio between a load applied to a front wheel of the vehicle and a load applied to a rear wheel of the vehicle, and the left-right load ratio being a ratio between a load applied to a left wheel of the vehicle and a load applied to a right wheel of the vehicle;
• and
• calculating a wheel load ratio expressing a relative wheel load between the wheels included in the vehicle, with respect to at least one of the wheels of the vehicle, based on the front-rear load ratio and the left-right load ratio.

A non-transitory recording medium storing a wheel load estimation program for estimating a wheel load of a vehicle, the wheel load estimation program being configured to cause a computer to execute:

• acquiring wheel speed information of each wheel included in the vehicle from a wheel speed sensor provided in the vehicle;
• calculating a front-rear load ratio and a left-right load ratio based on the wheel speed information, the front-rear load ratio being a ratio between a load applied to a front wheel of the vehicle and a load applied to a rear wheel of the vehicle, and the left-right load ratio being a ratio between a load applied to a left wheel of the vehicle and a load applied to a right wheel of the vehicle;
• and
• calculating a wheel load ratio expressing a relative wheel load between the wheels included in the vehicle, with respect to at least one of the wheels of the vehicle, based on the front-rear load ratio and the left-right load ratio.