To provide a vehicle behavior estimation system and vehicle behavior estimation method which can execute driving diagnosis about steering of a plurality of vehicles on the basis of one determination criterion.SOLUTION: A vehicle behavior estimation system comprises: a yaw rate sensor which detects a yaw rate of a diagnosis object vehicle 20; a vehicle speed sensor which detects a vehicle speed of the diagnosis object vehicle; and a processor. The processor obtains a first curvature being the curvature of a travel locus of the diagnosis object vehicle on the basis of the yaw rate and the vehicle speed, and performs driving diagnosis about steering of the diagnosis object vehicle on the basis of a determination criterion defining a relation between a steering angle relevant value being a value based on a steering angle of a steering wheel of a reference vehicle 40 being a different vehicle from the diagnosis object vehicle and the behavior of the reference vehicle due to steering and a curvature relevant value being a value based on the first curvature.SELECTED DRAWING: Figure 1

    【課題】一つの判定基準に基づいて複数の車両の操舵に関する運転診断を実行可能な車両挙動推定システム及び車両挙動推定方法を提供する。【解決手段】診断対象車両20のヨーレートを検出するヨーレートセンサと、診断対象車両の車速を検出する車速センサと、プロセッサと、を備え、プロセッサが、ヨーレート及び車速に基づいて診断対象車両の走行軌跡の曲率である第1曲率を求め、診断対象車両とは別の車両である基準車両40のステアリグホイールの操舵角に基づく値である操舵角関連値と操舵に起因する基準車両の挙動との関係性を規定した判定基準、及び、第1曲率に基づく値である曲率関連値に基づいて、診断対象車両の操舵に関する運転診断を行う。【選択図】図1


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    Titel :

    VEHICLE BEHAVIOR ESTIMATION SYSTEM AND VEHICLE BEHAVIOR ESTIMATION METHOD


    Weitere Titelangaben:

    車両挙動推定システム及び車両挙動推定方法


    Beteiligte:

    Erscheinungsdatum :

    2023-05-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen / B62D MOTOR VEHICLES , Motorfahrzeuge



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