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    • 2. 发明授权
    • Sensing device for determining an angular position of a steering wheel
on a steering column in a vehicle
    • 用于确定车辆的转向柱上的方向盘的角位置的感测装置
    • US5825178A
    • 1998-10-20
    • US668923
    • 1996-06-24
    • Ulrich HippManfred Abendroth
    • Ulrich HippManfred Abendroth
    • B62D1/10B62D15/02G01B7/00G01B7/30G01B21/22G01D5/245H03M1/16H03M1/28G01D5/249
    • G01B7/30B62D15/02H03M1/161H03M1/282
    • The sensing device for determination of a steering wheel angle of a steering column of a vehicle includes a first coded disk which is read by a first group of receiving devices to form a fine code signal and which rotates at the same speed as the steering wheel. A second coded disk rotates with a fourth the speed of the first disk and has two or more pole change positions which are detected by a second group of receiving devices to form a gross code signal. Hall elements are used as receiving devices. Magnetically coded disks having a predetermined sequence of alternating North and South pole regions are used as the coded disks. These regions are distributed around the periphery of the disk and have different arc lengths. Hall switching devices are used as receivers which cooperate with the magnetic regions of the coded disks. An accurate angle position signal for the steering wheel is produced by a device for combining the fine and gross code signals produced by the Hall switching devices which includes a microcomputer .mu.C.
    • 用于确定车辆的转向柱的方向盘角度的感测装置包括第一编码盘,其由第一组接收装置读取以形成精细代码信号并以与方向盘相同的速度旋转。 第二编码盘以第一盘的第四速度旋转并且具有由第二组接收装置检测以形成总码信号的两个或多个极点改变位置。 霍尔元件用作接收设备。 使用具有交替的北极和南极区域的预定顺序的磁编码盘作为编码盘。 这些区域分布在盘的周边周围并具有不同的弧长。 霍尔切换装置用作与编码盘的磁区配合的接收器。 用于组合由包括微计算机μC的霍尔切换装置产生的精细和总代码信号的装置产生用于方向盘的准确的角度位置信号。