The present invention provides a road surface profile estimation device and so on with which any road surface profile, including that of a general road, can be estimated with a high degree of precision using a general-purpose vehicle. The road surface profile estimation device includes an acquisition unit that acquires a vertical acceleration and angular velocity about a pitch axis, a first calculation unit that calculates a vertical displacement and an angular displacement about the pitch axis, a prediction unit that predicts the time evolution of state variables of the vehicle on the basis of a simulation model, a second calculation unit that calculates the acceleration, the angular velocity, the displacement, and the angular displacement from the state variables on the basis of an observation model, an updating unit that updates the state variables by data-assimilating the acceleration and angular velocity acquired by the acquisition unit and the displacement and angular displacement calculated by the first calculation unit with the acceleration, angular velocity, displacement, and angular displacement calculated by the second calculation unit, and an estimation unit that estimates the road surface profile on the basis of the state variables.


    Access

    Download


    Export, share and cite



    Title :

    ROAD SURFACE PROFILE ESTIMATING DEVICE, ROAD SURFACE PROFILE ESTIMATING SYSTEM, ROAD SURFACE PROFILE ESTIMATING METHOD, AND ROAD SURFACE PROFILE ESTIMATING PROGRAM


    Additional title:

    STRASSENOBERFLÄCHENPROFILSCHÄTZVORRICHTUNG, STRASSENOBERFLÄCHENPROFILSCHÄTZSYSTEM, STRASSENOBERFLÄCHENPROFILSCHÄTZVERFAHREN UND STRASSENOBERFLÄCHENPROFILSCHÄTZPROGRAMM
    DISPOSITIF D'ESTIMATION DE PROFIL DE SURFACE DE ROUTE, SYSTÈME D'ESTIMATION DE PROFIL DE SURFACE DE ROUTE, PROCÉDÉ D'ESTIMATION DE PROFIL DE SURFACE DE ROUTE ET PROGRAMME D'ESTIMATION DE PROFIL DE SURFACE DE ROUTE


    Contributors:
    NAGAYAMA TOMONORI (author) / ZHAO BOYU (author) / WANG HAOQI (author)

    Publication date :

    2022-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / 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