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1. 发明授权

US4257040A Engine rotational information detecting apparatus 失效
标题翻译：发动机旋转信息检测装置
公开(公告)号：US4257040A
公开(公告)日：1981-03-17
申请号：US20926
申请日：1979-03-15
申请人： Shinji Shirasaki , Katsuhiro Ohta , Takao Sugisaki
发明人： Shinji Shirasaki , Katsuhiro Ohta , Takao Sugisaki
IPC分类号： G01P3/44 , G01D5/14 , G01D5/244 , G01P3/487 , G08B21/00 , H02K24/00
CPC分类号： G01D5/14 , G01P3/487
摘要： An apparatus for detecting information indicative of the rotation of an engine is disclosed in which a multiplicity of magnetic poles are formed on a track along the circumferential periphery of a rotating member driven by an engine, thus detecting a rotational reference position and a rotational angle from the rotational reference position of the engine. A rotational reference sensor and an angle sensor for generating a signal representing a change in magnetic fluxes by detection of the magnetic fluxes from the track are arranged in opposition to the track in spaced relation from each other along the axis of the rotating member. Some of the magnetic poles on the track which are opposed to the rotational reference sensor are omitted, so that a signal representing the rotational reference position is generated in the case where the angle sensor detects magnetic fluxes but the rotational reference sensor fails to detect the same.
摘要翻译：公开了一种用于检测指示发动机旋转的信息的装置，其中沿着由发动机驱动的旋转构件的圆周边缘的轨道上形成多个磁极，从而检测旋转基准位置和旋转角度发动机的旋转参考位置。旋转参考传感器和用于通过检测来自轨道的磁通量来产生表示磁通量变化的信号的角度传感器被布置成与沿着旋转构件的轴线彼此间隔开的轨道相对。轨道上与旋转参考传感器相对的一些磁极被省略，使得在角度传感器检测磁通量但旋转基准传感器不能检测到的情况下产生表示旋转基准位置的信号。

2. 发明授权

US5006844A Tire abnormality detecting device 失效
标题翻译：轮胎异常检测装置
公开(公告)号：US5006844A
公开(公告)日：1991-04-09
申请号：US373846
申请日：1989-06-29
申请人： Katsuhiro Ohta , Hisami Masuda , Mamoru Makishima
发明人： Katsuhiro Ohta , Hisami Masuda , Mamoru Makishima
IPC分类号： B60C23/02 , B60C23/04 , B60C23/20 , G08B21/00
CPC分类号： B60C23/0428 , B60C23/20
摘要： A tire abnormality detecting device has a first unit to be provided on a vehicle body side and a second unit to be provided on a tire side. The first unit includes an electrical signal generating source for generating a specific electrical signal, a first coil device for generating an induction voltage in receipt of the electrical signal, and a device for detecting a change in the induction voltage of the first coil device. The second unit includes a second coil device adapted to be magnetically connected to the first coil device, a third coil device having a magnetic core formed of a temperature sensing magnetic material to form a resonance circuit in cooperation with the second coil device, and a switch mechanism for changing a time constant of the resonance circuit in response to a change in air pressure in a tire. With this construction, the abnormal reduction in air pressure in the tire and/or the abnormal increase in temperature of the tire can be detected.

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