公开(公告)号：US20050081615A1

公开(公告)日：2005-04-21

申请号：US10936313

申请日：2004-09-08

申请人： William Stewart ,  Samuel Strahan ,  Alan McCall

发明人： William Stewart ,  Samuel Strahan ,  Alan McCall

IPC分类号： B60C23/04 ,  G01M17/02

CPC分类号： B60C23/0408

摘要： An apparatus for detecting motion of a wheel comprising tyre. The apparatus comprises a pressure sensor for measuring the tyre pressure and generating a signal corresponding to the measured tyre pressure, and means for detecting a component of said signal that corresponds to, or is generated by, vibrations of the tyre. Upon detection of the signal component, the apparatus determines that the wheel is in motion. The detecting means may arranged to detect an audio signal component or signal components having a frequency in the range 200 Hz to 300 Hz.

摘要翻译： 一种用于检测包括轮胎的车轮的运动的装置。 该装置包括用于测量轮胎压力并产生对应于测量的轮胎压力的信号的压力传感器，以及用于检测与轮胎振动相对应或由其产生的所述信号的分量的装置。 在检测到信号分量时，装置确定车轮处于运动状态。 检测装置可以被布置成检测具有在200Hz至300Hz范围内的频率的音频信号分量或信号分量。

公开(公告)号：US07926341B2

公开(公告)日：2011-04-19

申请号：US11431912

申请日：2006-05-10

申请人： Idir Boudaoud ,  William Stewart ,  Alan McCall

发明人： Idir Boudaoud ,  William Stewart ,  Alan McCall

IPC分类号： G01F17/00 ,  G01F23/00

CPC分类号： G01F23/26 ,  G01F23/22 ,  G01F23/284

摘要： In a liquid sensing system, an RF signal is applied to a series-resonant circuit. The coil of the resonant circuit is placed proximate to a fuel tank, causing electromagnetic radiation to propagate into the fuel space. The fuel acts as an electrical load to the resonant circuit in a manner proportionate to the volume of fuel in the tank and/or to variations in electrical properties of the fuel itself. The loading effect of the fuel can change the resonant frequency and/or the Q of the resonant circuit. The loading effect of the fuel is determined by monitoring a change in one or more electrical parameters associated with the excited resonant circuit, such as a voltage across the resistor in the resonant circuit. Changes in this voltage are analyzed by a controller, the result of which is used to output a value indicative of level and/or composition of the fuel.

摘要翻译： 在液体感测系统中，将RF信号施加到串联谐振电路。 谐振电路的线圈靠近燃料箱放置，导致电磁辐射传播到燃料空间。 燃料以与罐中燃料的体积成比例的方式和/或燃料本身的电气特性的变化作为对谐振回路的电负载。 燃料的负载效应可以改变谐振电路的谐振频率和/或Q。 通过监测与激发的谐振电路相关联的一个或多个电参数的变化（例如谐振电路中的电阻器两端的电压）来确定燃料的负载效果。 该电压的变化由控制器分析，其结果用于输出指示燃料的水平和/或组成的值。

公开(公告)号：US20050179530A1

公开(公告)日：2005-08-18

申请号：US10761734

申请日：2004-01-20

申请人： William Stewart ,  Alan McCall ,  Idir Boudaoud ,  Stephen Robb

发明人： William Stewart ,  Alan McCall ,  Idir Boudaoud ,  Stephen Robb

IPC分类号： B60C23/00

CPC分类号： B60C23/0416 ,  B60C23/0466 ,  B60C23/0488 ,  B60C23/0489

摘要： A remote tire monitor system includes a control unit and a plurality of tire monitors mountable on respective wheels of a vehicle to transmit radio signals to the control unit. The tire monitors each include a pair of motion sensors such as shock sensors and a control circuit configured to determine position information for the respective tire monitor based on first and second shock sensor signals from the pair of shock sensors. The shock sensors produce an output voltage proportional to a change in applied force. Therefore, the offset created by centrifugal force in previously used accelerometers is absent, simplifying design of the tire monitors.

摘要翻译： 遥控轮胎监视器系统包括控制单元和可安装在车辆的相应车轮上的多个轮胎监视器，以将无线电信号传送到控制单元。 轮胎监视器每个包括一对运动传感器，例如冲击传感器和控制电路，该控制电路被配置为基于来自该对冲击传感器的第一和第二冲击传感器信号来确定相应的轮胎监视器的位置信息。 冲击传感器产生与施加力变化成正比的输出电压。 因此，不存在先前使用的加速度计中由离心力产生的偏移，从而简化轮胎监视器的设计。

公开(公告)号：US20070000321A1

公开(公告)日：2007-01-04

申请号：US11431912

申请日：2006-05-10

申请人： Idir Boudaoud ,  William Stewart ,  Alan McCall

发明人： Idir Boudaoud ,  William Stewart ,  Alan McCall

IPC分类号： G01F23/24

CPC分类号： G01F23/26 ,  G01F23/22 ,  G01F23/284

摘要： In a liquid sensing system, an RF signal is applied to a series-resonant circuit. The coil of the resonant circuit is placed proximate to a fuel tank, causing electromagnetic radiation to propagate into the fuel space. The fuel acts as an electrical load to the resonant circuit in a manner proportionate to the volume of fuel in the tank and/or to variations in electrical properties of the fuel itself. The loading effect of the fuel can change the resonant frequency and/or the Q of the resonant circuit. The loading effect of the fuel is determined by monitoring a change in one or more electrical parameters associated with the excited resonant circuit, such as a voltage across the resistor in the resonant circuit. Changes in this voltage are analyzed by a controller, the result of which is used to output a value indicative of level and/or composition of the fuel.

摘要翻译： 在液体感测系统中，将RF信号施加到串联谐振电路。 谐振电路的线圈靠近燃料箱放置，导致电磁辐射传播到燃料空间。 燃料以与罐中燃料的体积成比例的方式和/或燃料本身的电气特性的变化作为对谐振回路的电负载。 燃料的负载效应可以改变谐振电路的谐振频率和/或Q。 通过监测与激发的谐振电路相关联的一个或多个电参数的变化（例如谐振电路中的电阻器两端的电压）来确定燃料的负载效果。 该电压的变化由控制器分析，其结果用于输出指示燃料的水平和/或组成的值。

公开(公告)号：US20050156722A1

公开(公告)日：2005-07-21

申请号：US10761772

申请日：2004-01-20

申请人： Alan McCall ,  William Stewart

发明人： Alan McCall ,  William Stewart

IPC分类号： B60C23/00 ,  B60C23/04

CPC分类号： B60C23/0408

摘要： A tire monitor for mounting to a vehicle as part of a remote tire monitoring system includes a tire condition sensor to produce a tire condition signal, a controller coupled to the tire condition sensor to control operation of the tire monitor, and a radio circuit coupled to the controller to transmit radio signals based at least in part on the tire condition signal. A shock sensor is coupled to the controller of the tire monitor to produce a motion signal indicating motion of the tire monitor.

摘要翻译： 作为远程轮胎监视系统的一部分安装到车辆的轮胎监视器包括：轮胎状态传感器，用于产生轮胎状态信号;耦​​合到轮胎状况传感器的控制器，用于控制轮胎监视器的操作;以及无线电路， 所述控制器至少部分地基于所述轮胎状况信号来发射无线电信号。 震动传感器耦合到轮胎监视器的控制器以产生指示轮胎监视器的运动的运动信号。

公开(公告)号：US07836756B2

公开(公告)日：2010-11-23

申请号：US12004443

申请日：2007-12-18

申请人： Idir Boudaoud ,  Adrian Page ,  Alan McCall

发明人： Idir Boudaoud ,  Adrian Page ,  Alan McCall

IPC分类号： G01N30/62

CPC分类号： G01N27/221 ,  G01N33/2852

摘要： A flex fuel sensor is deployed in conjunction with the fuel transfer line (e.g. around a plastic fuel line) or at the bottom/side of a fuel tank. An RF signal of a constant frequency may be generated across a resonant circuit, which comprises of an inductor and a PCB trace capacitor, capacitor plates, semi cylindrical capacitor plates, or the like. Electromagnetic radiation is propagated into the passing fuel in the transfer pipe. The conductivity and dielectric properties of the fuel change the capacitance of the trace capacitor/capacitor plates. These changes are proportional to ethanol/alcohol content of the fuel and are preferably detected by a microcontroller, or the like, and then transmitted to a flex fuel vehicle Engine Management System.

摘要翻译： 弹性燃料传感器与燃料输送管线（例如在塑料燃料管线周围）或燃料箱的底部/侧面相结合地部署。 可以在包括电感器和PCB迹线电容器，电容器板，半圆柱形电容器板等的谐振电路两端产生恒定频率的RF信号。 电磁辐射传播到输送管道中的通过燃料中。 燃料的导电性和介电性能改变了痕量电容器/电容器板的电容。 这些变化与燃料的乙醇/醇含量成比例，优选由微控制器等检测，然后传输到柔性燃料车辆发动机管理系统。

公开(公告)号：US20080156065A1

公开(公告)日：2008-07-03

申请号：US12004443

申请日：2007-12-18

申请人： Idir Boudaoud ,  Adrian Page ,  Alan McCall

发明人： Idir Boudaoud ,  Adrian Page ,  Alan McCall

IPC分类号： G01N23/00

CPC分类号： G01N27/221 ,  G01N33/2852

摘要： A flex fuel sensor is deployed in conjunction with the fuel transfer line (e.g. around a plastic fuel line) or at the bottom/side of a fuel tank. An RF signal of a constant frequency may be generated across a resonant circuit, which comprises of an inductor and a PCB trace capacitor, capacitor plates, semi cylindrical capacitor plates, or the like. Electromagnetic radiation is propagated into the passing fuel in the transfer pipe. The conductivity and dielectric properties of the fuel change the capacitance of the trace capacitor/capacitor plates. These changes are proportional to ethanol/alcohol content of the fuel and are preferably detected by a microcontroller, or the like, and then transmitted to a flex fuel vehicle Engine Management System.

摘要翻译： 弹性燃料传感器与燃料输送管线（例如在塑料燃料管线周围）或燃料箱的底部/侧面相结合地部署。 可以在包括电感器和PCB迹线电容器，电容器板，半圆柱形电容器板等的谐振电路两端产生恒定频率的RF信号。 电磁辐射传播到输送管道中的通过燃料中。 燃料的导电性和介电性能改变了痕量电容器/电容器板的电容。 这些变化与燃料的乙醇/醇含量成比例，优选由微控制器等检测，然后传输到柔性燃料车辆发动机管理系统。