Tire rolling resistance estimation system

A tire rolling resistance estimation system, the system estimating a real-time rolling resistance coefficient of a tire supporting a vehicle, the system including:

• a tire sensor unit mounted to the tire, the tire sensor unit measuring an inflation pressure of the tire and a temperature of the tire;
• a processor in electronic communication with the tire sensor unit;
• a steady state coefficient determination module in electronic communication with the processor, the steady state coefficient determination module receiving a plurality of inputs and determining a steady state rolling resistance coefficient of the tire;
• a steady state tire temperature module in electronic communication with the processor, the steady state tire temperature module receiving the steady state rolling resistance coefficient of the tire from the steady state coefficient determination module and estimating a steady state tire temperature of the tire;
• and
• a real-time rolling resistance coefficient module in electronic communication with the processor, the real-time rolling resistance coefficient module receiving the steady state tire temperature of the tire from the steady state tire temperature module and estimating a real-time rolling resistance coefficient of the tire from the steady state rolling resistance coefficient and a difference between the steady state tire temperature and a current tire temperature from the tire sensor unit.