An estimation apparatus includes a rotation speed acquisition unit, a driving force acquisition unit, a slip ratio calculation unit, a slope calculation unit, and an estimation unit. The rotation speed acquisition unit sequentially acquires rotation speeds of the tires. The driving force acquisition unit sequentially acquires a driving force of the vehicle. The slip ratio calculation unit calculates a slip ratio based on the sequentially-acquired rotation speeds of the tires. The slope calculation unit calculates the slope of the slip ratio with respect to the driving force based on a large number of data sets of the slip ratio and the driving force, as a regression coefficient representing a linear relationship between the slip ratio and the driving force. The estimation unit estimates the wear state of the tires based on the slope.
TIRE WEAR STATE ESTIMATION APPARATUS
VORRICHTUNG ZUR ABSCHÄTZUNG DES VERSCHLEISSZUSTANDS EINES REIFENS
APPAREIL D'ESTIMATION DE L'ÉTAT D'USURE DE PNEUMATIQUE
2023-12-06
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
TIRE WEAR ESTIMATION SYSTEM, TIRE WEAR ESTIMATION PROGRAM, AND TIRE WEAR ESTIMATION METHOD
European Patent Office | 2021
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