To provide a brake torque estimator capable of precisely estimating brake torque at a low cost.SOLUTION: A brake torque estimator 20 can be installed on a vehicle 10 comprising a plurality of wheels 7 provided with tires and comprises a brake torque calculation part 26 for calculating brake torque Tbi of the wheels 7 and inputs a wheel speed Vwi of the wheels 7 and a longitudinal acceleration ax being a longitudinal direction acceleration of the vehicle 10. The brake torque calculation part 26 calculates a vehicle body speed Vb, a tire longitudinal force Fxi of the wheels 7, and a slip ratio of the wheels 7 on the basis of the wheel speed Vwi, a tire load Fzi of the wheels 7, the longitudinal acceleration ax, and tire characteristics of the wheels 7, and calculates the brake torque Tbi on the basis of the calculated tire longitudinal force Fxi.SELECTED DRAWING: Figure 2

    【課題】低コストで高精度に制動トルクを推定できる制動トルク推定装置を提供する。【解決手段】本発明による制動トルク推定装置20は、タイヤが設けられた複数の車輪7を備える車両10に設置可能であり、車輪7の制動トルクTbiを算出する制動トルク算出部26を備え、車輪7の車輪速Vwiと、車両10の前後方向の加速度である前後加速度axとを入力する。制動トルク算出部26は、車輪速Vwiと、車輪7のタイヤ荷重Fziと、前後加速度axと、車輪7のタイヤ特性とに基づいて、車体速Vbと、車輪7のタイヤ前後力Fxiと、車輪7のスリップ率とを算出するとともに、算出したタイヤ前後力Fxiに基づいて制動トルクTbiを算出する。【選択図】図2


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    Title :

    BRAKE TORQUE ESTIMATOR


    Additional title:

    制動トルク推定装置


    Contributors:
    SETO SHINJI (author) / GOTO DAISUKE (author)

    Publication date :

    2024-06-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF



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