PROBLEM TO BE SOLVED: To enhance estimation accuracy of an axial load.SOLUTION: Inner pressure sensors 20, 20, 20, 20detect respective inner pressures P, P, P, Pof air springs 4, 4, 4, 4, height sensors 21, 21detect left and right vehicle heights H, H, a vehicle height difference calculation part 25 calculates difference (vehicle height difference ΔH) between the left and right vehicle heights H, H. A spring upper load calculation part 24 calculates spring upper loads F, F, F, Fwhich the respective air springs 4, 4, 4, 4bear, by using the inner pressures P, P, P, P. A correction load calculation part 26 calculates a correction load Fs which a stabilizer 7 bears, by using the left and right vehicle height difference ΔH. An axial load calculation part 27 calculates an axial load F which an axle case 3 supports, by aggregating the spring upper loads F, F, F, Fand the correction load Fs.SELECTED DRAWING: Figure 1

    【課題】軸荷重の推定精度を高める。【解決手段】内圧センサ20LF,20LB,20RF,20RBは、エアスプリング4LF,4LB,4RF,4RBの各内圧PLF,PLB,PRF,PRBを検出し、ハイトセンサ21L,21Rは、左右の車高HL,HRを検出し、車高差演算部25は、左右の車高HL,HRの差(車高差ΔH)を算出する。バネ上荷重演算部24は、各エアスプリング4LF,4LB,4RF,4RBが負担するバネ上荷重FLF,FLB,FRF,FRBを、内圧PLF,PLB,PRF,PRBを用いて算出する。補正荷重演算部26は、スタビライザ7が負担する補正荷重Fsを、左右の車高差ΔHを用いて算出する。軸荷重演算部27は、アクスルケース3が支える軸荷重Fを、バネ上荷重FLF,FLB,FRF,FRBと補正荷重Fsとを合算することによって算出する。【選択図】図1


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    Title :

    WEIGHT ESTIMATION DEVICE OF VEHICLE


    Additional title:

    車両の重量推定装置


    Contributors:

    Publication date :

    2017-03-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge



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