To make it possible to perform auxiliary steering for an individual wheel depending on a travel state in addition to steering by a handle operation, to improve travel stability/safety and fuel consumption, and further to perform both of main steering and auxiliary steering stably, with good efficiency and with a simple and firm configuration.SOLUTION: A hub unit is connected to a steering device 25, which changes a steering angle of a wheel 2 by a handle operation, via a knuckle 22 of a suspension device 21. The hub unit comprises a hub unit body 4 having a hub bearing 3, and a unit support member 5 which is provided on the knuckle 22. The hub unit body 4 is so supported by a unit support member 5 at vertical two points via rotation allowing support components 7, 7 as to be rotatable around an auxiliary steering axis A, and auxiliary steering is performed by an auxiliary steering actuator 6. A direction of the auxiliary steering axis A is different from that of a king pin axis K, and both intersection points P, Pof extension lines of respective axes A, K and a road surface S are positioned in a tire ground contact surface 9a.SELECTED DRAWING: Figure 1

    【課題】ハンドル操作による転舵に付加して、走行状況に応じた車輪個別の補助的な転舵が行えて、走行の安定・安全性の向上と燃費の改善が可能となり、また簡素でかつ堅固であり、さらに主な転舵と補助転舵が共に安定して効率よく行えるようにする。【解決手段】ハンドル操作によって車輪2の転舵角度を変化させるステアリング装置25に、懸架装置21のナックル22を介して接続されるハブユニットである。ハブベアリング3を有するハブユニット本体4と、ナックル22に設けられたユニット支持部材5とを備える。ハブユニット本体4は、補助転舵軸心A回りに回転自在に上下2箇所で回転許容支持部品7,7を介してユニット支持部材5に支持され、補助転舵用アクチュエータ6により補助転舵が行われる。補助転舵軸心Aはキングピン軸Kと異なる方向であり、各軸A,Kの延長線と路面Sとの交点位置RA、PKが共にタイヤ接地面9a内に位置する。【選択図】図1


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    Title :

    HUB UNIT WITH AUXILIARY STEERING FUNCTION AND VEHICLE


    Additional title:

    補助転舵機能付ハブユニットおよび車両


    Contributors:
    OBA HIROKAZU (author) / OHATA YUSUKE (author)

    Publication date :

    2019-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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