Method for driving an electromagnetic actuator for operating a gas change valve
    1.
    发明授权
    Method for driving an electromagnetic actuator for operating a gas change valve 有权
    用于驱动用于操作气体切换阀的电磁致动器的方法

    公开(公告)号:US06234122B1

    公开(公告)日:2001-05-22

    申请号:US09440656

    申请日:1999-11-16

    IPC分类号: F01L904

    CPC分类号: F01L9/04 F01L2009/049

    摘要: In the case of known electromagnetic actuators each with at least one electromagnet acting on an armature, operational fluctuations of system parameters can lead to incorrect functioning, in particular to increased wear of the actuator, undesired noise generation, and excessive power consumption. In the new method, which is preferably used for operating gas change valves in internal combustion engines, the impact velocity of the armature on the electromagnet is automatically adjusted to a preset value. For this purpose, a controlled variable that depends on a change of inductance of the electromagnet is created as a measure of the impact velocity of the armature on The electromagnet and the controlled variable is adjusted by controlling the energy supply To the electromagnet to provide a setpoint value that the controlled variable adopts at a preset value of the impact velocity of the armature on the electromagnet. This permits reliable continuous duty with the new method.

    摘要翻译: 在已知的电磁致动器的情况下,每个电磁致动器都具有作用在电枢上的至少一个电磁体,系统参数的操作波动可导致不正确的功能,特别是增加致动器的磨损,不期望的噪声产生和过大的功率消耗。 在内燃机中优选用于操作气体换向阀的新方法中,电枢对电磁体的冲击速度被自动调整到预设值。 为此,产生依赖于电磁体的电感变化的受控变量作为电枢对电磁体的冲击速度的量度,并通过控制能量来调节受控变量。电磁铁提供设定值 控制变量采用电枢对电磁铁冲击速度的预设值的值。 这允许使用新方法可靠的连续工作。

    Seat heater and capacitive occupancy sensor combination
    2.
    发明授权
    Seat heater and capacitive occupancy sensor combination 有权
    座椅加热器和电容式占用传感器组合

    公开(公告)号:US08729430B2

    公开(公告)日:2014-05-20

    申请号:US13637189

    申请日:2011-03-22

    IPC分类号: H05B1/00

    摘要: A combined seat heater and capacitive occupancy sensor comprises a heater network and a capacitive sensing network. The heater network includes a heating element (10) connected between a first node (21) and a second node (22) to dissipate heat. The capacitive sensing network is connected to the heating element to apply an oscillating current thereto and to derive a capacitive load of the heating element from the voltage resulting on the heating element. The heater network comprises a common mode choke (16) connecting the first and the second node to a third (23) and a fourth (24) node, respectively. The capacitive sensing network further comprises means to sustain the oscillating current in or to drive the oscillating current into the heating element as well as a high-impedance amplifier (32) having an input node operatively connected to the heating element to probe the resulting voltage, and an output node (44) to provide an output signal indicative of the voltage.

    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和电容感测网络。 加热器网络包括连接在第一节点(21)和第二节点(22)之间以散热的加热元件(10)。 电容感测网络连接到加热元件以向其施加振荡电流并且从产生加热元件的电压导出加热元件的电容性负载。 加热器网络包括分别将第一和第二节点连接到第三(23)和第四(24)节点的共模扼流圈(16)。 电容感测网络还包括在振荡电流中保持振荡电流或驱动振荡电流进入加热元件的装置,以及具有可操作地连接到加热元件的输入节点以探测所得到的电压的高阻抗放大器(32) 以及输出节点(44),用于提供指示电压的输出信号。

    Plural-frequency capacitive occupancy sensing system
    3.
    发明授权
    Plural-frequency capacitive occupancy sensing system 有权
    多频电容占用传感系统

    公开(公告)号:US08994385B2

    公开(公告)日:2015-03-31

    申请号:US13554242

    申请日:2012-07-20

    摘要: A plural-frequency capacitive occupancy sensing system comprises an antenna electrode and a detection circuit, which is configured to drive the antenna electrode at least with a first and a second signal at a first and a second frequency, respectively, so as to obtain at least a first and a second measurement value indicative of at least one of conductance, susceptance, resistance, reactance and capacitance between the antenna electrode and a reference node, at the first frequency and the second frequency, respectively. The detection circuit compares the capacitance between the antenna electrode and the reference node with a threshold capacitance, the threshold capacitance being derived from a difference between the first and second measurement values and/or the capacitance between the antenna electrode and the reference node being corrected based upon the difference between the measurement values. The detection circuit outputs an occupancy state signal depending on the comparison.

    摘要翻译: 多频电容占用感测系统包括天线电极和检测电路,其被配置为分别至少以第一和第二频率的第一和第二信号驱动天线电极,以至少获得 第一和第二测量值分别表示第一频率和第二频率处的天线电极和参考节点之间的电导,电纳,电阻,电抗和电容中的至少一个。 检测电路将天线电极和参考节点之间的电容与阈值电容进行比较,阈值电容由第一和第二测量值之间的差导出,和/或天线电极与参考节点之间的电容被校正为基础 根据测量值之间的差异。 检测电路根据比较输出占空状态信号。

    Rfid Transceiver Unit
    4.
    发明申请
    Rfid Transceiver Unit 审中-公开
    Rfid收发单元

    公开(公告)号:US20080278287A1

    公开(公告)日:2008-11-13

    申请号:US11911735

    申请日:2006-04-18

    IPC分类号: H04Q5/22 G08B23/00

    摘要: An RFID transceiver unit (10) for detecting an RFID transponder said transceiver unit comprises a transmitter associated with a loop-shaped transmitting antenna (12) for transmitting an electromagnetic excitation field and a receiver associated with a loop-shaped receiving antenna (14). When the RFID transponder (18) is excited by the excitation field (24), the RFID transponder emits an electromagnetic response field, which induces a transponder signal in the receiving antenna. The received signal generated by the receiving antenna in response to an electromagnetic field thus contains the transponder signal. The received signal of the receiving antenna generally contains an interfering signal directly induced by the excitation field in the receiving antenna. The transceiver unit comprises means for attenuating the interfering signal in the received signal.

    摘要翻译: 一种用于检测RFID应答器的RFID收发器单元(10),所述收发器单元包括与用于传输电磁激励场的环形发射天线(12)相关联的发射机和与环形接收天线(14)相关联的接收机。 当RFID应答器(18)被激励场(24)激发时,RFID应答器发射电磁响应场,其在接收天线中引起应答器信号。 由接收天线响应于电磁场产生的接收信号因此包含应答器信号。 接收天线的接收信号通常包含由接收天线中的激励场直接感应的干扰信号。 收发器单元包括用于衰减接收信号中的干扰信号的装置。

    Capacitive occupant detection system
    5.
    发明授权
    Capacitive occupant detection system 有权
    电容乘员检测系统

    公开(公告)号:US08957689B2

    公开(公告)日:2015-02-17

    申请号:US13823394

    申请日:2011-09-16

    摘要: A capacitive occupant detection system comprises at least one antenna electrode to be arranged in a seat and an evaluation unit operatively coupled to said at least one antenna electrode, said evaluation unit being configured for applying, during operation, an alternating voltage signal to said antenna electrode and for detecting an amplitude and/or phase of a displacement current flowing from said antenna electrode towards ground. According to the invention said antenna electrode comprises an antenna electrode conductor and at least one dedicated ground electrode, said ground electrode being arranged at a predetermined distance of said antenna electrode conductor and extending along said antenna electrode conductor.

    摘要翻译: 电容乘员检测系统包括至少一个要布置在座位中的天线电极和可操作地耦合到所述至少一个天线电极的评估单元,所述评估单元被配置为在运行期间将交流电压信号施加到所述天线电极 并且用于检测从所述天线电极流向地面的位移电流的幅度和/或相位。 根据本发明,所述天线电极包括天线电极导体和至少一个专用接地电极,所述接地电极布置在所述天线电极导体的预定距离处并且沿着所述天线电极导体延伸。

    CAPACITIVE OCCUPANT DETECTION SYSTEM
    6.
    发明申请
    CAPACITIVE OCCUPANT DETECTION SYSTEM 有权
    电容式检测系统

    公开(公告)号:US20130207676A1

    公开(公告)日:2013-08-15

    申请号:US13823394

    申请日:2011-09-16

    IPC分类号: G01R27/26

    摘要: A capacitive occupant detection system comprises at least one antenna electrode to be arranged in a seat and an evaluation unit operatively coupled to said at least one antenna electrode, said evaluation unit being configured for applying, during operation, an alternating voltage signal to said antenna electrode and for detecting an amplitude and/or phase of a displacement current flowing from said antenna electrode towards ground. According to the invention said antenna electrode comprises an antenna electrode conductor and at least one dedicated ground electrode, said ground electrode being arranged at a predetermined distance of said antenna electrode conductor and extending along said antenna electrode conductor.

    摘要翻译: 电容乘员检测系统包括至少一个要布置在座位中的天线电极和可操作地耦合到所述至少一个天线电极的评估单元,所述评估单元被配置为在运行期间将交流电压信号施加到所述天线电极 并且用于检测从所述天线电极流向地面的位移电流的幅度和/或相位。 根据本发明,所述天线电极包括天线电极导体和至少一个专用接地电极,所述接地电极布置在所述天线电极导体的预定距离处并且沿着所述天线电极导体延伸。

    SEAT HEATER AND CAPACITIVE OCCUPANCY SENSOR COMBINATION
    10.
    发明申请
    SEAT HEATER AND CAPACITIVE OCCUPANCY SENSOR COMBINATION 有权
    座椅加热器和电容式传感器组合

    公开(公告)号:US20130020305A1

    公开(公告)日:2013-01-24

    申请号:US13637189

    申请日:2011-03-22

    IPC分类号: H05B1/00

    摘要: A combined seat heater and capacitive occupancy sensor comprises a heater network and a capacitive sensing network. The heater network includes a heating element (10) connected between a first node (21) and a second node (22) to dissipate heat. The capacitive sensing network is connected to the heating element to apply an oscillating current thereto and to derive a capacitive load of the heating element from the voltage resulting on the heating element. The heater network comprises a common mode choke (16) connecting the first and the second node to a third (23) and a fourth (24) node, respectively. The capacitive sensing network further comprises means to sustain the oscillating current in or to drive the oscillating current into the heating element as well as a high-impedance amplifier (32) having an input node operatively connected to the heating element to probe the resulting voltage, and an output node (44) to provide an output signal indicative of the voltage.

    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和电容感测网络。 加热器网络包括连接在第一节点(21)和第二节点(22)之间以散热的加热元件(10)。 电容感测网络连接到加热元件以向其施加振荡电流并且从产生加热元件的电压导出加热元件的电容性负载。 加热器网络包括分别将第一和第二节点连接到第三(23)和第四(24)节点的共模扼流圈(16)。 电容感测网络还包括在振荡电流中保持振荡电流或驱动振荡电流进入加热元件的装置,以及具有可操作地连接到加热元件的输入节点以探测所得到的电压的高阻抗放大器(32) 以及输出节点(44),用于提供指示电压的输出信号。