To determine a road surface state corresponding to various operations and operation conditions with high accuracy.SOLUTION: A road surface state detection device 80 includes: a steering angle detection part 51 for detecting a steering angle θs of a steering wheel 21; a shaft force detection part 58 for detecting shaft force fr of a steering shaft 41 of a steering part 24 for steering wheels 23 and 23; a yaw rate detection part 63 for detecting a yaw rate Yr generated on a vehicle 10; a first road surface condition determination part 81 for determining a road surface condition of a road surface Rd in contact with the wheels 23 and 23 on the basis of the value of the axial force fr to the steering wheel θs; and a second road surface condition determination part 82 for determining a road surface condition of the road surface Rd in contact with the wheels 23 and 23 on the basis of the value of the yaw rate Yr to the steering angle θs.SELECTED DRAWING: Figure 1

    【課題】多様な操作や運転状況に対応した路面状況を、より高精度に判断することができること。【解決手段】路面状態検出装置80は、ステアリングホイール21の操舵角θsを検出する操舵角検出部51と、車輪23,23を転舵する転舵部24の転舵軸41の軸力frを検出する軸力検出部58と、車両10に発生したヨーレートYrを検出するヨーレート検出部63と、前記操舵角θsに対する前記軸力frの値に基づいて、前記車輪23,23が接している路面Rdの路面状況を判断する第1の路面状況判断部81と、前記操舵角θsに対する前記ヨーレートYrの値に基づいて、前記車輪23,23が接している前記路面Rdの路面状況を判断する第2の路面状況判断部82と、を備えている。【選択図】図1


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    Titel :

    ROAD SURFACE STATE DETECTION DEVICE, AND POWER STEERING DEVICE HAVING THE ROAD SURFACE STATE DETECTION DEVICE


    Weitere Titelangaben:

    路面状態検出装置、及びこの路面状態検出装置を備えたパワーステアリング装置。


    Beteiligte:

    Erscheinungsdatum :

    2022-06-23


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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