PROBLEM TO BE SOLVED: To provide a technology which can accurately estimate weight added to a motorcycle.SOLUTION: A vehicle height adjustment device comprises: a rear suspension having a support member for changing a length of a rear-wheel side suspension spring; an electromagnetic valve control part for determining a target moving amount on the basis of a correlation relationship between weight at which the target moving amount reaches an upper limit value and the target moving amount when weight added to a vehicle is not lighter than prescribed weight, and controlling an actual moving amount of the support member so as to reach the target moving amount; and a weight estimation part. The electromagnetic valve control part determines the target moving amount on the basis of a temporary value of the weight, the weight estimation part increases the temporary value when an actual length of the rear suspension does not reach a target length even if the actual moving amount reaches the target moving amount, the electromagnetic valve control part shortens the target length when a new target moving amount corresponding to a new temporary value reaches an upper limit value even if the temporary value is increased, and the weight estimation part estimates the temporary value when the actual length finally reaches the target length as superimposition.SELECTED DRAWING: Figure 16

    【課題】確度高く自動二輪車に加わる重量を推定することができる技術を提供する。【解決手段】後輪側懸架スプリングの長さを変える支持部材を有するリヤサスペンションと、車両に加わる重量が所定重量以上である場合には目標移動量が上限値となる重量と目標移動量との相関関係に基づいて目標移動量を決定し、支持部材の実移動量が目標移動量となるように制御する電磁弁制御部と、重量推定部とを備え、電磁弁制御部は、重量の仮の値に基づいて目標移動量を決定し、重量推定部は、実移動量が目標移動量に到達してもリヤサスペンションの実長さが目標長さに到達しない場合には仮の値を増加させ、電磁弁制御部は、仮の値を増加させたとしても新たな仮の値に応じた新たな目標移動量が上限値に達している場合には、目標長さを減少させ、重量推定部は、最終的に実長さが目標長さとなったときの仮の値を重量として推定する。【選択図】図16


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    Title :

    VEHICLE HEIGHT ADJUSTMENT DEVICE


    Additional title:

    車高調整装置


    Contributors:

    Publication date :

    2018-09-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62K Fahrräder , CYCLES / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge / F16F SPRINGS , Federn



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