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1. 发明申请

US20150367751A1 CAPACITIVE SENSOR 有权
标题翻译：电容式传感器
公开(公告)号：US20150367751A1
公开(公告)日：2015-12-24
申请号：US14766727
申请日：2014-02-06
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： Laurent LAMESCH , Michael PUETZ , David HOYER , Andreas PETEREIT , Thomas MEYERS , Frank ALTHAUS , Michael VIRNICH
IPC分类号： B60N2/00 , G01D5/24 , B60N2/56
CPC分类号： B60N2/002 , B60N2/56 , B60N2/5685 , B60R21/01532 , G01D5/2405 , G01L1/144 , H03K17/955 , H03K2217/960765
摘要： A capacitive sensor (12) for a vehicle seat (10) comprises an antenna electrode (16) and a control and evaluation circuit (14) operatively connected to the antenna electrode. The control and evaluation circuit is configured to operate in a first mode of operation, during which it measures alternating electrical current flowing between the antenna electrode and ground. The capacitive sensor comprises a seat frame connector (38) for connecting the control and evaluation circuit to the seat frame (20) of the vehicle seat. The control and evaluation circuit is configured to operate in a second mode of operation, during which it measures electrical current flowing into the seat frame connector.
摘要翻译：用于车辆座椅（10）的电容式传感器（12）包括天线电极（16）和可操作地连接到天线电极的控制和评估电路（14）。控制和评估电路被配置为在第一操作模式下操作，在此期间，其测量在天线电极和地之间流动的交流电流。电容式传感器包括用于将控制和评估电路连接到车辆座椅的座椅框架（20）的座椅框架连接器（38）。控制和评估电路被配置为在第二操作模式下操作，在此期间，其测量流入座椅框架连接器的电流。

2. 发明申请

US20130098890A1 Capacitive sensing system configured for using heating element as antenna electrode 有权
公开(公告)号：US20130098890A1
公开(公告)日：2013-04-25
申请号：US13623217
申请日：2012-09-20
申请人： IEE International Electronics & Engineering S.A.
发明人： Michael VIRNICH , David HOYER , Martin THINNES , Michael PUETZ , Thomas MEYERS , Laurent LAMESCH
IPC分类号： H05B1/00 , G01R27/26
CPC分类号： B62D1/065 , B60N2/002 , B60N2/5685 , B60R21/01532 , B60R21/0154 , B62D1/046
摘要： A capacitive sensing system for a heating element comprises a capacitive detector connectable to the heating element and a common mode choke for connecting the heating element with a heating current supply. The detector drives an alternating current into the heating element and produces an output depending on the capacitive load, which the alternating current is subject to. Depending on the object sensed, the load varies in a range between a minimum and a maximum value. The choke represents an inductive load in parallel of the capacitive load. The capacitive load and the inductive load contribute to a complex impedance dominated by the inductive load. A compensation capacitor arranged parallel to the choke represents an additional capacitive load also contributing to the complex impedance. The compensation capacitor is dimensioned such that the sum of additional capacitive load and maximum value amounts to at least 50% of the inductive load.

3. 发明申请

US20180241394A1 METHOD OF OPERATING A CAPACITIVE SENSOR SYSTEM FOR VEHICLE TRUNK OPENER AND ROBUST CAPACITIVE SENSOR SYSTEM 审中-公开
公开(公告)号：US20180241394A1
公开(公告)日：2018-08-23
申请号：US15752179
申请日：2016-08-12
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： Michael VIRNICH , Laurent LAMESCH
IPC分类号： H03K17/955 , G07C9/00 , E05F15/70
摘要： A method of operating a capacitive loading-mode sensor system with regard to generating a trigger signal indicative of an occurrence of an event. The capacitive loading-mode sensor system includes at least one capacitive sensor and a sensor control unit configured for operating the at least one capacitive sensor in loading mode and including a signal generating unit and a signal evaluation unit. Based on acquired real part and imaginary part of the momentary sensor output signal, an absolute value of change of at least one out of a complex impedance or a complex admittance sensed by the at least one capacitive sensor is determined, and a trigger signal is generated by the signal evaluation unit if at least one predetermined condition concerning the determined absolute value of change of the complex impedance or the complex admittance is fulfilled.

4. 发明申请

US20150345998A1 CAPACITIVE SENSOR CONFIGURED FOR USING HEATING ELEMENT AS ANTENNA ELECTRODE 审中-公开
标题翻译：使用加热元件配置的电容式传感器作为天线电极
公开(公告)号：US20150345998A1
公开(公告)日：2015-12-03
申请号：US14653823
申请日：2013-12-19
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： Laurent LAMESCH , Michael VIRNICH , Michael PUETZ
IPC分类号： G01D5/24 , B60H1/00 , B60R21/015
CPC分类号： B60N2/5685 , B60H1/00742 , B60N2/002 , B60R21/01552 , G01D5/24
摘要： A capacitive sensor configured for connection between a heating element and a heating current supply comprises a common mode choke (CMC) for AC-decoupling the heating element from the heating current supply. The CMC comprises first and second inductively coupled windings, the first winding for connection between a first terminal of the heating current supply and a first terminal of the heating element and the second winding for connection between a second terminal of the heating element and a second terminal of the heating current supply. The capacitive sensor further comprises a control and evaluation circuit for injecting an AC signal into the heating element via a measurement node, measuring a voltage on and/or a current across the measurement node, and to derive an impedance between the heating element and a counter electrode from the measurement. The CMC comprises a third winding inductively coupled with the first and second windings, the third winding being operatively coupled with the measurement node.
摘要翻译：配置用于加热元件和加热电流源之间的连接的电容式传感器包括用于将加热元件与加热电流源进行AC分离的共模扼流圈（CMC）。 CMC包括第一和第二电感耦合绕组，用于在加热电流源的第一端子和加热元件的第一端子之间连接的第一绕组和用于在加热元件的第二端子与第二端子之间连接的第二绕组的加热电流供应。电容式传感器还包括控制和评估电路，用于经由测量节点将AC信号注入加热元件，测量跨越测量节点的电压和/或电流，并且导出加热元件和计数器之间的阻抗电极从测量。 CMC包括与第一和第二绕组感应耦合的第三绕组，第三绕组与测量节点可操作地耦合。

5. 发明申请

US20170299411A1 CAPACITIVE OCCUPANCY OR PROXIMITY DETECTOR 审中-公开
公开(公告)号：US20170299411A1
公开(公告)日：2017-10-19
申请号：US15510303
申请日：2015-08-20
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： Michael VIRNICH , Michael PÜTZ , Laurent LAMESCH , Jochen LANDWEHR
IPC分类号： G01D5/24 , G01R31/02 , B60R21/015 , B60N2/56 , B62D1/06 , B60N2/00
CPC分类号： G01D5/24 , B60N2/002 , B60N2/5685 , B60R21/01532 , B60R21/0154 , B62D1/06 , G01R31/02 , G01R31/44
摘要： A capacitive occupancy or proximity detector includes a heating circuit, an impedance measurement circuit connected to the heating element and a diagnostic circuit configured for determining integrity of the heater element. The heating circuit includes a heating element, a heating current source and a common mode choke having a first and a second winding, the heating element being connectable to the heating current source via the first and second windings. The diagnostic circuit includes at least one controllable switching element coupled across the second winding circuitry for injecting a DC current into a series connection formed by the first winding, the heating element and a parallel connection of the second winding and said at least one controllable switching element; and at least one detection circuit for detecting a voltage variation across the second winding.

6. 发明申请

US20150298590A1 CAPACITIVE OCCUPANCY OR PROXIMITY DETECTOR 有权
标题翻译：电容式检测器或接近检测器
公开(公告)号：US20150298590A1
公开(公告)日：2015-10-22
申请号：US14646731
申请日：2013-11-12
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： Laurent LAMESCH , Michael PUETZ , David HOYER , Andreas PETEREIT , Thomas MEYERS , Frank ALTHAUS , Michael VIRNICH
IPC分类号： B60N2/56 , B60N2/00 , G01V3/08
CPC分类号： B60N2/5678 , B60N2/002 , B60N2/5685 , G01V3/088 , H03K17/962 , H03K2217/960705
摘要： A capacitive occupancy or proximity detector (10) comprises a heating circuit, an impedance measurement circuit (34, 36, 40) and a diagnostic circuit. The heating circuit includes a heating element (12). The impedance measurement circuit is connected to the heating element so as to measure impedance between the heating element and a node at ground potential. The diagnostic circuit is configured for measuring electrical resistance across the heating circuit and includes a heating current sensor (42), configured for sensing a heating current across the heating circuit, a current supply device (48) for driving a diagnostic current across the heating circuit and a current limiting ground path (50), configured for draining the diagnostic current and for blocking the heating current.
摘要翻译：容性占用或接近检测器（10）包括加热电路，阻抗测量电路（34,36,40）和诊断电路。加热电路包括加热元件（12）。阻抗测量电路连接到加热元件，以测量加热元件与接地电位之间的阻抗。所述诊断电路被配置为测量所述加热电路两端的电阻，并且包括被配置为感测加热电路两端的加热电流的加热电流传感器（42），用于驱动穿过所述加热电路的诊断电流的电流供应装置（48）以及电流限制接地路径（50），被配置为排出诊断电流并阻止加热电流。

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