TIRE SIDEWALL LOAD ESTIMATION SYSTEM AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide a system and method for estimating a load bearing on a vehicle tire.SOLUTION: There is provided a system and method for estimating a load bearing on a vehicle tire. The system includes: an air pressure measuring sensor attached to the tire for measuring a tire cavity air pressure level; and one or more piezofilm deformation measuring sensors mounted on the tire sidewalls. The deformation measuring sensor generates within the tire footprint a deformation signal having signal power level indicative of a level of sidewall deformation within the footprint contact patch. Power-to-load maps adjusted for tire air pressure are generated and stored for the tire, the maps correlating a range of load levels to a range of signal power levels whereby operatively enabling a load level to be identified for each signal power level on an air pressure adjusted basis.