Angle Detection Apparatus, Motor Having the Angle Detection Apparatus, Torque Sensor, Electric Power Steering Apparatus, and Vehicle
    1.
    发明申请
    Angle Detection Apparatus, Motor Having the Angle Detection Apparatus, Torque Sensor, Electric Power Steering Apparatus, and Vehicle 有权
    角度检测装置,具有角度检测装置的电动机,扭矩传感器,电动转向装置和车辆

    公开(公告)号:US20160194027A1

    公开(公告)日:2016-07-07

    申请号:US14894103

    申请日:2015-08-07

    申请人: NSK LTD.

    摘要: There are provided an angle detection apparatus configured to correct an error included in angle information output from a multipolar angle detector, a motor having the angle detection apparatus, a torque sensor, an electric power steering apparatus, and a vehicle. A multiplication circuit (12) generates digital electrical angle information (θed) from analog angle information output from a multipolar optical encoder (11), a first differentiator 30 differentiates the electrical angle information (θed) to operate an electrical angular velocity (ωed), a first discontinuity correction circuit (31) carries out processing of correcting a discontinuity of an angular velocity in a temporal change for the electrical angular velocity (ωed), and a digital filter (32) carries out correction processing of reducing a high-frequency noise component for an electrical angular velocity (ωedc) corrected by the first discontinuity correction circuit (31).

    摘要翻译: 提供了一种角度检测装置,其被配置为校正由多极角度检测器输出的角度信息中包含的误差,具有角度检测装置的电动机,扭矩传感器,电动助力转向装置和车辆。 乘法电路(12)从多极光学编码器(11)输出的模拟角度信息产生数字电角度信息(第一微分器),第一微分器30区分电角度信息(& E)以操作电角速度 (ωed)时,第一不连续校正电路(31)进行电角度速度(ωed)的时间变化中的角速度的不连续性的处理,数字滤波器(32)进行减少 由第一不连续校正电路(31)校正的电角速度(ωedc)的高频噪声分量。