PROBLEM TO BE SOLVED: To improve accuracy in estimating a spring-burden load exerted to an air-spring.SOLUTION: An ascent-descent control part 20 executes ascent processing for lifting a structural body so that a vehicle height detected by a vehicle height sensor 13 reaches a reference vehicle height from below the aforementioned height, and descent processing for lowering the structural body so that a vehicle height detected by a vehicle height sensor 13 reaches the reference vehicle height from above the aforementioned height. A basic load computation part 19 computes a spring-burden basic load in an ascending direction by using basic load computation information and internal pressure detected by a pressure sensor 14 in the state of the structural body reaching the reference vehicle height by the ascent processing, and computes a spring-burden basic load in a descending direction by using basic load computation information and internal pressure detected by the pressure sensor 14 in the state of the structural body reaching the reference vehicle height by the descent processing. A spring-burden load computation part 23 calculates an average value of the spring-burden basic load in the ascending direction and the spring-burden basic load in the descending direction as a spring-burden load exerted to an air-spring.

    【課題】エアスプリングが負担するバネ負担荷重の推定精度を向上させる。【解決手段】昇降制御部20は、車高センサ13が検出する車高が基準車高よりも下方から基準車高に達するように構造体を上昇させる上昇処理と、車高センサ13が検出する車高が基準車高よりも上方から基準車高に達するように構造体を下降させる下降処理とを実行する。基本荷重演算部19は、上昇処理よって構造体が基準車高に達した状態で圧力センサ14が検出した内圧と基本荷重演算情報とを用いて上昇方向のバネ負担基本荷重を演算するとともに、下降処理によって構造体が基準車高に達した状態で圧力センサ14が検出した内圧と基本荷重演算情報とを用いて下降方向のバネ負担基本荷重を演算する。バネ負担荷重演算部23は、上昇方向のバネ負担基本荷重と下降方向のバネ負担基本荷重との平均値を、エアスプリングが負担するバネ負担荷重として算出する。【選択図】図3


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    Title :

    VEHICULAR WEIGHT ESTIMATION APPARATUS


    Additional title:

    車両の重量推定装置


    Contributors:

    Publication date :

    2015-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01G Wägen , WEIGHING / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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