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    • 2. 发明申请
    • DEVICE FOR DETECTING A ROTATION VARIABLE AND METHOD FOR EVALUATING A SENSOR OUTPUT SIGNAL
    • 用于检测旋转尺寸的装置和用于评估传感器输出信号的方法
    • WO2009036972A2
    • 2009-03-26
    • PCT/EP2008007790
    • 2008-09-18
    • BROSE FAHRZEUGTEILEKASPER KONRADSEMINETH MARCOWUERSTLEIN HOLGERWEINGAERTNER THOMASOLIVER KRAMPITZRUMP ARNOLDMUCK JUERGEN
    • KASPER KONRADSEMINETH MARCOWUERSTLEIN HOLGERWEINGAERTNER THOMASOLIVER KRAMPITZRUMP ARNOLDMUCK JUERGEN
    • G01D5/14G01D5/244
    • G01D5/2451
    • The invention relates to a device (1) for detecting a rotation variable (?+,?.,?) of a rotating central element (2), comprising a control unit (3) and a Hall sensor (4) having a first Hall sensor plate (H1), a second Hall sensor plate (H2), and an oscillator (6) for generating a sensor output signal (SH), wherein an upper Hall sensor threshold (Fsup) and a lower Hall sensor threshold (Finf) are predefined for the Hall voltage (UH), and wherein as a function of exceeding the upper hall voltage threshold (Fsup) or dropping below the lower hall voltage threshold (Finf) due to a first Hall voltage (UH,1) created in the first Hall sensor plate (H1), or due to a second Hall voltage (UH,2) created in the second Hall sensor plate (H2), and as a function of the rotation direction (?+,?.) of the rotating central element (2) that can be identified by the phase shift (f) between the first hall voltage (UH,1 ) and the second hall voltage (UH,2), a defined pulse width (?) is associated with the sensor output signal (SH). For evaluating the sensor output signal (SH), the oscillator-dependent deviation (??) of the pulse width (?) of the generated sensor output signal (SH) from a nominal pulse width (?o) predetermined for the oscillator (6) is initially detected, wherein a calibration function (f) for the sensor signal is determined from the extent of the deviation (??), and wherein the stored calibration function (f) is applied to the current sensor output signal (SH).
    • (?? +,。,?)有一个装置(1),用于检测给定的旋转中心元件(2)的旋转量,与控制单元(3),并与霍尔传感器(4),包括第一霍尔传感器板(H1), 第二霍尔传感器板(H2)和用于产生传感器输出信号(SH),其中,顶霍尔电压阈值(F SUP)和霍尔电压低的霍尔电压阈值(FINF)(UH)给出,且其中的一个振荡器(6)响应于的超出 顶部霍尔电压阈值(F SUP),或从下面由第一霍尔传感器板(H1)的第一霍尔电压(UH,1)或由第二霍尔传感器板(H2)的第二霍尔电压产生(UH,2)和所产生的低霍尔电压阈值(FINF) 由(F)第一霍尔电压之间的旋转中心元素的相移(UH,1)和第二霍尔电压(UH,2)识别的旋转方向(?,?+)的2的依赖性( )传感器输出信号(SH)被分配一个确定的脉冲宽度(?)。 用于评估传感器输出信号(SH)从振荡器是脉冲宽度(?)所产生的传感器输出信号(SH)中的振荡器依赖性偏差(σζ)(6)检测到的初始预定标称脉冲宽度(→O),其中,(从偏差的量度 )确定传感器信号的校准函数(f),并且其中存储的校准函数(f)被应用于电流传感器输出信号(SH)。