公开(公告)号：US20110148396A1

公开(公告)日：2011-06-23

申请号：US12642321

申请日：2009-12-18

Applicant: Eric D. Cahill

Inventor： Eric D. Cahill

IPC: G01P3/44

CPC classification number: G01P3/48 ,  B60C23/042 ,  B60C23/0425 ,  B64C25/36 ,  G01D5/14 ,  G01P3/483 ,  G01P3/488

Abstract: Systems and methods facilitate the monitoring of tire pressure, the detection/determination of wheel speed, or a combination thereof. A system is provided comprising a hub cap, a target coupled to the hub cap, and at least two displacement sensors configured to measure a displacement between each displacement sensor and the target. The target has a variable thickness, and the target comprises a hollow vessel in fluid communication with a tire.

公开(公告)号：US20090079556A1

公开(公告)日：2009-03-26

申请号：US12135441

申请日：2008-06-09

Applicant: Gregory E. Ross ,  Terence S. Brozek ,  Arnold Mandel ,  Ivan-Pierre Batinic

Inventor： Gregory E. Ross ,  Terence S. Brozek ,  Arnold Mandel ,  Ivan-Pierre Batinic

IPC: B60C23/00

CPC classification number: B60C23/0425

Abstract: A tire pressure monitoring device and system includes a support or housing mounted to a rim of a wheel of a vehicle. A casing is movably secured to the support and a pair of spaced magnets are disposed within the casing. The casing is collapsible for varying the length of the casing in response to changes in the tire pressure to move the magnets relative to each other. A sensor is mounted a distance from the casing for sensing a presence of each of the magnets. A controller is in communication with the sensor to determine the length of the casing and the relative movement between the magnets to calculate any changes in tire pressure.

Abstract translation: 轮胎压力监测装置和系统包括安装到车辆的车轮的轮辋上的支撑件或壳体。 壳体可移动地固定到支撑件上，并且一对间隔开的磁体设置在壳体内。 壳体可折叠以响应于轮胎压力的变化而改变壳体的长度以使磁体相对于彼此移动。 传感器与外壳安装一段距离，用于感测每个磁体的存在。 控制器与传感器通信以确定壳体的长度和磁体之间的相对运动，以计算轮胎压力的任何变化。

公开(公告)号：US07312698B2

公开(公告)日：2007-12-25

申请号：US11237808

申请日：2005-09-28

Applicant: Steven R. Thiele

Inventor： Steven R. Thiele

IPC: B60C23/00

CPC classification number: B60C23/0408 ,  B60C23/0425

Abstract: A vehicle tire pressure monitoring system and method is provided, the system including a tire pressure transducer affixed to either the tire or wheel of a vehicle. An electromagnet system is in electrical communication with the tire pressure transducer, the electromagnet system configured to generate pulses and transfer a single bit of data to a sensor system on the vehicle body upon each revolution of the tire or wheel. The sensor system in turn transfers the received bits to an electronic control unit wherein the code is converted into a read out for the vehicle operator. One or more bits within the code may be redundant checking bits or bits representing the status of the pressure transducer or electromagnet system.

公开(公告)号：US20040090322A1

公开(公告)日：2004-05-13

申请号：US10694381

申请日：2003-10-27

Applicant: Pacific Industrial Co, Ltd.

Inventor： Yasuhisa Tsujita

IPC: B60C023/00

CPC classification number: B60C23/0416 ,  B60C23/0425 ,  B60C23/0433

Abstract: A tire condition monitoring apparatus that improves data communication accuracy. Permanent magnets are fixed to the wheel well. A transmitter fixed to a tire includes a pressure sensor for detecting the air pressure of the tire and an MI sensor for detecting magnetic fields generated by the permanent magnets. As the tire rotates, the positions of the permanent magnets relative to the MI sensor change. Thus, the intensity of the magnetic field acting on the MI sensor changes. The transmitter determines the rotation angle of the tire based on the detection of the MI sensor. When the rotation angle of the tire is in a range optimal for wireless communication, the transmitter transmits the air pressure data generated by the pressure sensor.

Abstract translation: 一种提高数据通信精度的轮胎状态监视装置。 永磁体固定在车轮上。 固定在轮胎上的变送器包括用于检测轮胎气压的压力传感器和用于检测由永磁体产生的磁场的MI传感器。 当轮胎旋转时，永磁体相对于MI传感器的位置改变。 因此，作用在MI传感器上的磁场的强度变化。 传感器基于MI传感器的检测来确定轮胎的旋转角度。 当轮胎的旋转角度在无线通信的最佳范围内时，发送器发送由压力传感器产生的空气压力数据。

公开(公告)号：US5261273A

公开(公告)日：1993-11-16

申请号：US735025

申请日：1991-07-24

Applicant: Yuichi Imani ,  Takeshi Sawada

Inventor： Yuichi Imani ,  Takeshi Sawada

IPC: B60C23/00 ,  B60C23/04 ,  B60C23/02

CPC classification number: B60C23/0425

Abstract: The pneumatic pressure in a tire on a wheel of a vehicle is introduced into a pressure chamber positioned at a central axis about which the tire is rotatable through a communication passage defined in the wheel. When the pneumatic pressure in the pressure chamber varies, a diaphragm or bellows attached over the pressure chamber is elastically displaced, axially moving a slide bar extending axially through a wheel shaft on which the wheel is supported. The movement of the slide bar displaces a ferromagnetic member in a coil, whose inductance then varies. The change in the coil inductance is detected by an electronic control unit, which transmits a signal to a display unit.

Abstract translation: 轮胎在车轮上的气压被引入定位在中心轴线处的压力室，轮胎可通过轮毂上限定的连通通道旋转。 当压力室中的气压变化时，附着在压力室上的隔膜或波纹管被弹性位移，轴向移动滑动杆，其轴向延伸通过其上支撑有轮的轮轴。 滑动杆的移动使线圈中的铁磁部件移位，线圈的电感随之变化。 线圈电感的变化由电子控制单元检测，电子控制单元向显示单元发送信号。

公开(公告)号：US4208649A

公开(公告)日：1980-06-17

申请号：US35

申请日：1979-01-02

Applicant: Athanase K. Sarides

Inventor： Athanase K. Sarides

IPC: B60C23/04

CPC classification number: B60C23/0425

Abstract: Apparatus for detecting loss of pressure in a pneumatic tire, while it is in use on a vehicle, includes an actuator secured to the wheel so as to rotate therewith. The actuator is in communication with the air in the tire and has a movable part of magnetically active material positioned in accordance with the magnitude of the air pressure. A magnetically actuated device is mounted on the vehicle so as to be variably actuated according to the position of the magnetically active part of the actuator as it rotates with the wheel, and an indicator connected to the magnetically actuated device indicates loss of air pressure in the tire.

Abstract translation: 用于检测充气轮胎中的压力损失的装置，当其在车辆上使用时，包括固定到车轮上以与其一起旋转的致动器。 致动器与轮胎中的空气连通，并且具有根据空气压力大小定位的磁性活性材料的可移动部分。 磁力驱动装置安装在车辆上，以便随着致动器的磁力活动部分随着车轮旋转的位置而可变地致动，并且连接到磁力驱动装置的指示器指示在 胎。

公开(公告)号：US3913065A

公开(公告)日：1975-10-14

申请号：US37466573

申请日：1973-06-28

Applicant: DUNLOP LTD

Inventor： GOULD ERIC GORDIN

IPC: G08C19/00 ,  B60C23/02 ,  B60C23/04

CPC classification number: B60C23/0425 ,  B60C23/043

Abstract: Apparatus for detecting fall of inflation pressure in a pneumatic tire comprising a first coil mounted on the wheel and closeable by means of a pressure responsive switch, and a second coil non-rotatably mounted on the vehicle and having a magnet located at its centre, the second coil being attached to an amplifier and warning device. On fall of tire pressure the switch closes the first coil so that in passing close to the magnet a current flows in the coil creating a magnetic flux. This flux associated with the first coil induces a signal in the second coil which after amplification actuates the warning device.

公开(公告)号：US3873787A

公开(公告)日：1975-03-25

申请号：US42890673

申请日：1973-12-26

Applicant: HONDA MOTOR CO LTD

Inventor： NOZI AKIO

IPC: G01L17/00 ,  B60C23/02 ,  B60C23/04 ,  H01H35/24 ,  B60C23/06 ,  H01H36/00

CPC classification number: B60C23/0425

Abstract: An alarm device capable of detecting reduction in vehicular tire air pressure below a critical level irrespective of the vehicle speed, notwithstanding that the critical pressure level is variable with the vehicle speed. It includes detector means, a signalling circuit including a magnetic switch, a magnet secured to a casing of the detector means, and a spring-biased, airpressure responsive magnetic short circuiting member which is preferably in a floating state in the casing free from friction, for accurate detection of the variation in the air pressure within the tire.

Abstract translation: 尽管临界压力水平随着车辆速度而变化，但能够检测车辆轮胎空气压力低于临界水平而不考虑车辆速度的报警装置。 它包括检测器装置，包括磁性开关的信号电路，固定在检测器装置的壳体上的磁体以及弹簧偏置的空气压响应的磁性短路元件，其在壳体中优选处于浮动状态， 摩擦，以准确地检测轮胎内的空气压力的变化。

公开(公告)号：US3832681A

公开(公告)日：1974-08-27

申请号：US35751473

申请日：1973-05-04

Applicant: BRIDGESTONE TIRE CO LTD ,  MITAKA INSTR CO LTD

Inventor： KAIDA M ,  YASUDA S

IPC: G01L17/00 ,  B60C23/02 ,  B60C23/04

CPC classification number: B60C23/0425

Abstract: A pressure change detecting system for detecting change of pressure of pressurized gas confined in a chamber of a rotating body, which comprises a detector adapted to be mounted on the rotating body and including a magnet carrier plate carrying thereon a permanent magnet and a weight member, the magnet carrier plate being rotatable in accordance with centrifugal force applied to the weight member due to the rotation of the rotating body, and lock means for allowing the magnet carrier plate together with the magnet to upset only when the pressure of the pressurized gas changes over a predetermined extent, an electro-motive element so positioned as to face the orbital plane of the detector for producing an electro-motive force in accordance with variation of a magnetic field established therein due to the rotation of the detecting assembly, and processor for processing the electro-motive force so as to produce pressure change information signal in accordance with the electro-motive force.

Abstract translation: 一种用于检测限制在旋转体的室中的加压气体的变化的压力变化检测系统，其包括适于安装在旋转体上并包括承载有永磁体和配重构件的磁体载体板的检测器， 磁铁承载板能够根据旋转体的旋转而被施加到配重构件的离心力旋转;以及锁定装置，用于仅当加压气体的压力变化时才允许磁体承载板与磁体一起镦锻 预定程度的电动元件，其被定位成面对检测器的轨道平面，以便根据检测组件的旋转而根据其中建立的磁场的变化产生电动力;以及处理器，用于处理 电动力，以便根据电动力产生压力变化信息信号 。

公开(公告)号：US2057556A

公开(公告)日：1936-10-13

申请号：US60403432

申请日：1932-04-08

Applicant: COLE DALE S

Inventor： COLE DALE S

IPC: B60C23/04

CPC classification number: B60C23/0425 ,  B60C23/043 ,  B60C23/0496