PROBLEM TO BE SOLVED: To cause a vehicle to travel stably when the vehicle is in an empty condition.SOLUTION: An axle automatic lifting device 20 includes: a detection part 272 for detecting a turning limit state of a vehicle 1; and a descent control part 273 for descending a rear-forward axle 3 in response to a detection of a turning limit state by the detection part 272, if between the rear-forward axle 3 and a rear-rear axle 4 as a plurality of rear axles provided in the vehicle 1, the rear-forward axle 3 as a part of the rear axles is being lifted. The detection part 272 calculates threshold limit values of elements indicating a motion state of the vehicle 1 when the vehicle 1 can stably travel at a detected vehicle speed and a steering angle, and if obtained values of elements indicating a motion state exceed the threshold limit values, detects that the vehicle 1 has reached the turning limit state.SELECTED DRAWING: Figure 2

    【課題】空車時に車両を安定して走行させる。【解決手段】車軸自動昇降装置20は、車両1の旋回限界状態を検知する検知部272と、車両1に設けられている複数の後軸としての後前軸3、後後軸4のうち、一部の後軸としての後前軸3が上昇している場合において、検知部272が旋回限界状態を検知したことに応じて、後前軸3を下降させる下降制御部273と、を備える。検知部272は、検出された車速及び操舵角において車両1が安定して走行可能なときの車両1の運動状態を示す要素の限界値を算出し、取得した運動状態を示す要素の値が、当該限界値を超えた場合に、車両1が旋回限界状態となったことを検知する。【選択図】図2


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    Title :

    AXLE AUTOMATIC LIFTING DEVICE


    Additional title:

    車軸自動昇降装置


    Contributors:

    Publication date :

    2017-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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