PROBLEM TO BE SOLVED: To provide a road curvature estimation device and a lane deviation avoidance system which have high accuracy in curvature estimation and are superior in response.SOLUTION: A road curvature estimation device (3) is characterized by comprising: an image acquisition unit (7) which acquires an image obtained by imaging the front of user's vehicle; a curvature estimation unit (9) which uses the image to estimate a curvature of a lane on which the vehicle is traveling; a vehicle speed acquisition unit (7) which acquires a vehicle speed of the vehicle; a maximum allowable change rate acquisition unit (13) which acquires a maximum allowable change rate corresponding to the vehicle speed acquired by the vehicle speed acquisition unit, from a prescribing unit which prescribes a maximum allowable change rate of the curvature for each vehicle speed; and a correction unit (15) which, if a change rate in the curvature calculated by the curvature estimation unit exceeds the maximum allowable change rate, corrects the curvature calculated by the curvature estimation unit so that the change rate becomes the maximum allowable change rate or less.SELECTED DRAWING: Figure 1

    【課題】曲率の推定精度が高く、応答性に優れた道路曲率推定装置及び車線逸脱回避システムを提供すること。【解決手段】自車両の前方を撮像した画像を取得する画像取得ユニット(7)と、前記画像を用いて自車両が走行中の車線における曲率を推定する曲率推定ユニット(9)と、自車両の車速を取得する車速取得ユニット(7)と、前記曲率の最大許容変化率を車速ごとに規定した規定ユニットから、前記車速取得ユニットで取得した車速に対応する前記最大許容変化率を取得する最大許容変化率取得ユニット(13)と、前記曲率推定ユニットで算出した曲率における変化率が前記最大許容変化率を超える場合、前記曲率推定ユニットで算出した曲率を、その変化率が前記最大許容変化率以下となるように補正する補正ユニット(15)と、を備えることを特徴とする道路曲率推定装置(3)。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    ROAD CURVATURE ESTIMATION DEVICE AND LANE DEVIATION AVOIDANCE SYSTEM


    Additional title:

    道路曲率推定装置及び車線逸脱回避システム


    Contributors:

    Publication date :

    2017-01-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B62D MOTOR VEHICLES , Motorfahrzeuge



    ROAD CURVATURE ESTIMATION DEVICE AND LANE DEVIATION AVOIDANCE SYSTEM

    NAKAHARA NAOTO | European Patent Office | 2017

    Free access

    LANE DEVIATION AVOIDANCE SYSTEM

    OKA KAZUMICHI | European Patent Office | 2017

    Free access

    LANE DEVIATION AVOIDANCE DEVICE

    NAKAHARA NAOTO | European Patent Office | 2017

    Free access

    LANE DEVIATION AVOIDANCE SYSTEM

    OKA KAZUMICHI | European Patent Office | 2017

    Free access

    LANE DEVIATION AVOIDANCE DEVICE

    NAKAHARA NAOTO | European Patent Office | 2017

    Free access