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公开(公告)号：US07474070B2
公开(公告)日：2009-01-06
申请号：US11709024
申请日：2007-02-22
申请人： Yasushi Miyazawa , Keiji Sato
发明人： Yasushi Miyazawa , Keiji Sato
CPC分类号： B62D5/049 , B62D6/10 , G01L25/003
摘要： A torque detection portion includes a first arm having a detection coil L1 and a resistor R1, and a second arm having a detection coil L2 and a resistor R2. When a test mode is set, a reference voltage Vref having an abnormal value is outputted to a monitoring portion 13. An abnormal condition is intentionally caused in the monitoring portion 13. A main torque signal Vtm is compared with a sub torque signal Vts in the monitoring portion 13. When the reference voltage Vref set in the monitoring portion 13 has the abnormal value, a sub torque signal Vts having a level of 0 (Vts=0) is forcibly outputted in a normal condition. Then the signal Vtm is equal to the signal Vts, the monitoring portion 13 determines that a shortcircuit occurs between a main torque signal line and a sub torque signal line.
摘要翻译： 扭矩检测部分包括具有检测线圈L1和电阻器R1的第一臂和具有检测线圈L2和电阻器R2的第二臂。 当设置测试模式时，具有异常值的参考电压Vref被输出到监视部分13.在监视部分13中有意地引起异常状况。将主转矩信号Vtm与副转矩信号Vts进行比较 在监视部13中设定的基准电压Vref为异常值的情况下，在正常状态下强制输出0（Vts = 0）的副转矩信号Vts。 然后信号Vtm等于信号Vts，监视部分13确定在主转矩信号线和副转矩信号线之间发生短路。
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公开(公告)号：US20060022627A1
公开(公告)日：2006-02-02
申请号：US11192077
申请日：2005-07-29
IPC分类号： H02P7/00
CPC分类号： B62D5/049
摘要： An object of the present invention is to provide an electric power steering apparatus that can detect failure of a current detector quickly and with less misdetection using torque oscillation from a torque sensor. When the number of times N an absolute value of a differential value of a torque command value Tref exceeds a predetermined threshold value dTq in a predetermined time Tmr has reached a predetermined number Nref it is judged that the current detector has failed.
摘要翻译： 本发明的目的是提供一种电动助力转向装置，其可以使用来自转矩传感器的转矩振动来快速检测电流检测器的故障并且以较少的误差检测。 当在预定时间Tmr中转矩指令值Tref的差分值的绝对值超过预定阈值dTq的次数N已经达到预定数量Nref时，判断为电流检测器已经失败。
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公开(公告)号：US20070205734A1
公开(公告)日：2007-09-06
申请号：US11709024
申请日：2007-02-22
申请人： Yasushi Miyazawa , Keiji Sato
发明人： Yasushi Miyazawa , Keiji Sato
IPC分类号： H02P7/00
CPC分类号： B62D5/049 , B62D6/10 , G01L25/003
摘要： A torque detection portion includes a first arm having a detection coil L1 and a resistor R1, and a second arm having a detection coil L2 and a resistor R2. When a test mode is set, a reference voltage Vref having an abnormal value is outputted to a monitoring portion 13. An abnormal condition is intentionally caused in the monitoring portion 13. A main torque signal Vtm is compared with a sub torque signal Vts in the monitoring portion 13. When the reference voltage Vref set in the monitoring portion 13 has the abnormal value, a sub torque signal Vts having a level of 0 (Vts=0) is forcibly outputted inanormal condition. Then the signal Vtm is equal to the signal Vts, the monitoring portion 13 determines that a shortcircuit occurs between a main torque signal line and a sub torque signal line.
摘要翻译： 转矩检测部分包括具有检测线圈L 1和电阻器R 1的第一臂和具有检测线圈L 2和电阻器R 2的第二臂。 当设置测试模式时，具有异常值的参考电压V SUB ref被输出到监视部分13。 在监视部13中有意引起异常情况。 主监控部分13中的主转矩信号V SUB T M = 0）在非正常状态下强制输出。 然后，信号V SUB tm 等于信号V SUB，监视部分13确定在主转矩信号线和副转矩信号线之间发生短路。
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公开(公告)号：US07049773B2
公开(公告)日：2006-05-23
申请号：US11192077
申请日：2005-07-29
IPC分类号： H02P7/00
CPC分类号： B62D5/049
摘要： An object of the present invention is to provide an electric power steering apparatus that can detect failure of a current detector quickly and with less misdetection using torque oscillation from a torque sensor. When the number of times N an absolute value of a differential value of a torque command value Tref exceeds a predetermined threshold value dTq in a predetermined time Tmr has reached a predetermined number Nref it is judged that the current detector has failed.
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