A determining apparatus for determining a state of a road surface is provided. The determining apparatus includes: a rotational velocity acquiring portion; a slip ratio calculating portion; a driving force acquiring portion; a slope calculating portion; and a determining portion. The slope calculating portion calculates the slope and an intercept, based on many data sets of the slip ratio and the driving force at the time of determination of a state of the road surface and therebefore, when a variation of the driving force is at least a certain value at the time of determination, and calculates the slope based on the data set of the slip ratio and the driving force at the time of determination of a state of the road surface, and the intercept that has been already obtained, when the variation is less than the certain value at the time of determination.
APPARATUS FOR DETERMINING STATE OF ROAD SURFACE
VORRICHTUNG ZUR BESTIMMUNG DES ZUSTANDS EINER STRASSENOBERFLÄCHE
APPAREIL DE DÉTERMINATION D'ÉTAT DE SURFACE DE ROUTE
2023-08-30
Patent
Electronic Resource
English
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion |
ROAD SURFACE STATE DETECTION APPARATUS AND ROAD SURFACE STATE NOTIFICATION APPARATUS
European Patent Office | 2023
|