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1. 发明申请

WO2014122197A1 CAPACITIVE SENSOR 审中-公开
标题翻译：电容式传感器
公开(公告)号：WO2014122197A1
公开(公告)日：2014-08-14
申请号：PCT/EP2014/052291
申请日：2014-02-06
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , PUETZ, Michael , HOYER, David , PETEREIT, Andreas , MEYERS, Thomas , ALTHAUS, Dr. Frank , VIRNICH, Michael
IPC分类号： G01L1/14 , B60N2/00 , G01D5/24 , H03K17/955 , B60R21/015
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

WO2014079735A1 CAPACITIVE OCCUPANCY OR PROXIMITY DETECTOR 审中-公开
标题翻译：电容式检测器或接近检测器
公开(公告)号：WO2014079735A1
公开(公告)日：2014-05-30
申请号：PCT/EP2013/073593
申请日：2013-11-12
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： LAMESCH, Laurent , PUETZ, Michael , HOYER, David , PETEREIT, Andreas , MEYERS, Thomas , ALTHAUS, Franck , VIRNICH, Michael
IPC分类号： H03K17/96 , B60N2/56 , B60N2/00
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。

3. 发明申请

WO2022112330A1 ROBUST 'HANDS ON STEERING WHEEL' CLASSIFICATION BASED ON A RELATIVE MEASUREMENT SYSTEM 审中-公开
公开(公告)号：WO2022112330A1
公开(公告)日：2022-06-02
申请号：PCT/EP2021/082823
申请日：2021-11-24
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.
发明人： FABER, Thomas , ALTHAUS, Frank , MEYERS, Thomas , LION, Oliver , LAMESCH, Laurent , PÜTZ, Michael , KOEHLER, Alan
IPC分类号： H03K17/96 , B62D1/04 , B60R21/015
摘要： A method of operating a capacitive sensing device (10) that includes at least one capacitive sensor having at least one sense electrode (12), a measurement signal source (14) for providing an alternating electric measurement signal with at least three fixed predefined signal frequencies to the at least one sense electrode (12), and an impedance measurement circuit (16) for determining an unknown complex impedance of the at least one sense electrode (12) from a response to the provided electric measurement signal. The method comprises steps, to be executed for each predefined signal frequency, of: determining (202) statistical quantities and signal parameters regarding a number of determined momentary values of an unknown complex impedance; eliminating (214) from the determined momentary values frequency portions up to a predefined hand touch movement lower limit frequency and from a predefined high-frequency limit down to a predefined hand touch movement upper limit frequency for obtaining remaining determined momentary values; excluding (206) statistical outliers from determined momentary values; and using an eliminated frequency portion for calculating (216) a momentary reference value for the unknown complex impedance. The method further comprises steps of determining a signal classification (400) based on conditions that include the momentary reference value for the unknown complex impedance; and generating (412) an output signal that is representative of a signal classification result.

4. 发明申请

WO2012113795A1 HEATING ELEMENT OPERATED AS CAPACITIVE SENSING ELECTRODE 审中-公开
标题翻译：加热元件作为电容式感应电极操作
公开(公告)号：WO2012113795A1
公开(公告)日：2012-08-30
申请号：PCT/EP2012/052940
申请日：2012-02-21
申请人： IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. , LAMESCH, Laurent , MEYERS, Thomas
发明人： LAMESCH, Laurent , MEYERS, Thomas
IPC分类号： B60R21/015
CPC分类号： B60N2/002 , B60N2/5685 , B60R21/01532
摘要： A combined seat heater and capacitive occupancy sensor comprises a heater network including a heating element (11) and a capacitive sensing circuit connected to the heating element to sense a capacitive load. A first and a second interface are provided for connecting the heating element to a first and a second terminal of a power source, respectively. Each interface comprises electronically controlled switches (3, 5; 4, 6) arranged in series and defining an intermediate node (20; 21). An oscillator (8) is AC-coupled to the intermediate nodes to apply an oscillating voltage thereto. A current measuring means (9), AC-coupled between the oscillator and the heating element, keeps the AC-potential of the heating element at least substantially equal, in amplitude and phase, to the oscillating voltage on the intermediate nodes and to derive the capacitive load from a thus resulting current flowing into the heating element.
摘要翻译：组合座椅加热器和电容占用传感器包括加热器网络，其包括加热元件（11）和连接到加热元件以感测电容性负载的电容感测电路。提供了第一和第二接口，用于将加热元件分别连接到电源的第一和第二端子。每个接口包括串联布置并限定中间节点（20; 21）的电子控制开关（3,5; 4,6）。振荡器（8）与中间节点交流耦合以向其施加振荡电压。交流耦合在振荡器和加热元件之间的电流测量装置（9）使加热元件的交流电势在振幅和相位上至少基本上等于中间节点上的振荡电压，并导出由此产生的电流流入加热元件的电容性负载。

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