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    • 6. 发明专利
    • Switchgear
    • JP4800753B2
    • 2011-10-26
    • JP2005339086
    • 2005-11-24
    • アスモ株式会社
    • 加藤  学正明 清水
    • E05F15/14B60J5/00
    • E05F15/46E05Y2800/40E05Y2900/531E05Y2900/546
    • An opening and closing apparatus is provided with a foreign material detecting sensor, a position detecting apparatus and a control circuit apparatus. The foreign material detecting sensor has a sensor electrode, and is arranged in a front end of a door panel. The foreign material detecting sensor outputs an electrostatic capacity detection signal corresponding to a change of an electrostatic capacity between the sensor electrode and a foreign material coming close to the electrode. The position detecting apparatus outputs a position detection signal corresponding to a position of the door panel. The control circuit apparatus compares a change amount of the electrostatic capacity detected on the basis of the electrostatic capacity detection signal with a threshold value so as to judge, on the basis of a result of comparison, whether or not a foreign material exists between the door panel and a vehicle body. The control circuit apparatus changes the threshold value on the basis of the position detection signal, in the case of detecting, on the basis of the position detection signal, that the door panel is arranged at the first door position, during a closing motion of the door panel.
    • 8. 发明专利
    • Foreign material detecting sensor
    • 外部材料检测传感器
    • JP2008185545A
    • 2008-08-14
    • JP2007021406
    • 2007-01-31
    • Asmo Co Ltdアスモ株式会社
    • FUJIWARA TOSHIOSHIMIZU MASAAKI
    • G01B7/00
    • G01D5/2405E05F15/42E05F15/44E05F15/46E05Y2900/531
    • PROBLEM TO BE SOLVED: To provide a foreign material detecting sensor capable of enhancing detection accuracy of capacitance detected using a sensor electrode. SOLUTION: The foreign material detecting sensor 41 is equipped with a pressure detector 44 outputting voltage detection signal when a sensor body 42 deforms by a predetermined amount. An oscillation circuit 81 oscillates at oscillation frequency determined by the capacitance C1 between a lateral electrode 52 and the foreign material X1 approaches to the lateral electrode 52 to output oscillation signal at this oscillation frequency. A capacitance detector 43 measures time period required to output the oscillations signal for 20,000 cycles during the measuring period shorter than reaction time required from abutting of the foreign material X1 on the sensor body 42 to outputting of the touch detection signal when a door panel is operated with the maximum speed to output measured result at every passage of measuring period. A judging section 45, while judging existence of the foreign material X1 between the door panel and the doorway based on the measured result, judges existence of the foreign substance X1 based on touch detection signal. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供能够提高使用传感器电极检测的电容的检测精度的异物检测传感器。 解决方案:异物检测传感器41配备有当传感器主体42变形预定量时输出电压检测信号的压力检测器44。 振荡电路81以由横向电极52和异物X1之间的电容C1决定的振荡频率振荡到横向电极52,以便以该振荡频率输出振荡信号。 电容检测器43测量在测量期间输出振荡信号20,000次的时间段,该测量期间比传感器主体42上的异物X1与操作门板之间的触摸检测信号的输出所需的反应时间短 在测量周期的每次通过时输出测量结果的最大速度。 判断部45基于测定结果来判定门板与门口之间的异物X1的存在,基于触摸检测信号判断异物X1的存在。 版权所有(C)2008,JPO&INPIT