Inductive Patents (Class 340/448)
  • Patent number: 9965411
    Abstract: A communication system of the present disclosure includes a communication device that is communicatively coupled to a peripheral device. The peripheral device selects a selectable impedance from among multiple selectable impedances to communicate peripheral device information to the communication device. The communication device operates in an acquisition mode of operation to determine the selectable impedance to recover the peripheral device information. Optionally, the communication device can transition to a response mode of operation to respond to the peripheral device information.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: May 8, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventor: Steven Hall
  • Patent number: 9707807
    Abstract: A connector assembly includes a first side connector and a second side connector. The first side connector includes a first protective housing, a first inductor including a first end face, and a first physical connector element. The second side connector includes a second protective housing, a second inductor including a second face, and a second physical connector element. The second physical connector element is engaged with the first physical connector element and physically connects the first side connector to the second side connector such that the first end face and the second end face are adjacent. The first inductor and the second inductor are axially spaced apart. The first inductor and the second inductor form an inductive telemetry connection between the first side connector and the second side connector.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 18, 2017
    Assignee: Goodrich Corporation
    Inventors: Paul L. Summers, Steven Keller, Perry Leaves
  • Patent number: 9238407
    Abstract: A tire pressure dependent cruise control device automatically disengages cruise control upon detection of unbalanced tire pressures. The device includes a vehicle and a pair of aligned wheels coupled to the vehicle. A cruise control unit is operationally coupled to the vehicle for maintaining a speed of the vehicle independent of a driver constantly depressing a pedal of the vehicle. Each of a pair of sensors is coupled to the vehicle adjacent to an associated one of the wheels. The sensors are aligned and the sensors monitor alignment of the sensors. The sensors are communicatively coupled to the cruise control unit wherein the cruise control unit is deactivated from maintaining a constant speed of the vehicle upon the sensors detecting misalignment of the sensors indicating unbalanced tire pressure in the wheels.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: January 19, 2016
    Inventor: Jose Brito
  • Patent number: 8742914
    Abstract: Tire pressure information is sensed. The sensed tire pressure information is stored in a transmission buffer. A control program is executed to transmit the tire pressure information from the transmission buffer to an external receiver device according to each of a plurality of communications formats incorporated into the control program and not according to a manufacturers' code.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: June 3, 2014
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Jean-Christophe Deniau, Brian J. Farrell
  • Patent number: 8742915
    Abstract: In a system for monitoring the pressure of the tires of a vehicle, it is proposed to compensate the raw data of the parameters of the tires only if the comparison of the successive raw data of at least one reference parameter exhibits a deviation, in absolute value, greater than a determined threshold of variation. In a TPMS monitoring system, each wheel unit includes sensors for measuring the parameters of pressure, temperature and acceleration, and elements of storage and autonomous power supply, in conjunction with a processor. The raw data provided by the sensors are stored, compensated and transmitted as finalized data by a radiofrequency emission circuit to a central unit. It is proposed that the wheel unit also includes, in a processing module, comparison elements, external to the processor, for comparing between successive raw data of one and the same parameter that are provided by the measurement sensors.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: June 3, 2014
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventor: Youri Vassilieff
  • Patent number: 8730022
    Abstract: A communication method transmits a detection signal including a valve ID, which is a fixed data string, and detection information, which is a variable data string, performs error detection on the received detection signal, and uses the detection information when there is no error. The communication method generates third data corresponding to the detection information in accordance with a predetermined rule to increase redundancy of the detection information, generates computed data by performing an exclusive disjunction logic operation with the valve ID and data including the detection information and the third data, transmits the detection signal that includes the computed data, receives the detection signal, restores the detection information and the third data by performing an exclusive disjunction logical operation with the received detection signal and the computed data, and determines whether the detection information conforms to the third data.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: May 20, 2014
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventor: Masanori Kosugi
  • Patent number: 8680980
    Abstract: A blank tire pressure monitoring device includes a housing having an air valve at one end and connection terminals at an opposite end, a circuit board mounted in the housing and carrying a pressure sensor, a temperature sensor, an acceleration sensor, an analog-digital converter electrically connected with the pressure sensor, the temperature sensor and the acceleration sensor, a general purpose I/O terminal unit electrically connected with the connection terminals of the housing; an embedded microcontroller module electrically connected with the general purpose I/O terminal unit and the analog-digital converter and having built therein a flash memory, a microcontroller core and a special-function register controller, a LF receiver electrically connected to the embedded microcontroller module, and a transmitter electrically connected to the embedded microcontroller module; and a method is still also disclosed for setting up a blank tire pressure monitoring device.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: March 25, 2014
    Assignee: Cub Elecparts Inc.
    Inventors: San-Chuan Yu, Chih-Ming Chiang, Yuan-Tung Hung, Chao-Ching Hu
  • Patent number: 8659412
    Abstract: A tire pressure measuring device is configured with a plurality of communication protocols. Tire pressure information is sensed using the tire pressure measuring device. The tire pressure information is transmitted from the tire pressure measuring device to an external receiver device according to each of the plurality of communication protocols.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 25, 2014
    Assignee: Continental Automotive Systems, Inc.
    Inventor: Jean-Christophe Deniau
  • Patent number: 8576060
    Abstract: An apparatus for transmitting tire pressure signals includes a transmission buffer and a transmitter. The transmission buffer is configured to store tire pressure monitoring data. The transmitter is configured to transmit a signal including the tire pressure monitoring data. The signal includes a burst that includes plurality of frames and each of the frames includes the tire pressure monitoring information. A plurality of pause spaces is disposed between at least some of the frames in the burst.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: November 5, 2013
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Jean-Christophe Deniau, Brian J. Farrell
  • Patent number: 8531313
    Abstract: The invention describes a method for the operation of a driving assistance system when parking a vehicle (01) in a lateral parking space (02) along a carriageway, in which below a particular activation speed and during the search for a parking space, possible parking spaces (02) are measured and an information item indicating that a suitable parking space (02) has been found is output to the driver for a parking space (02) of sufficient length for the vehicle (01), wherein the rear area (03) of the vehicle (01) is monitored when the activation speed is undershot during the search for a parking space, and the driver of the vehicle (01) is warned of a potential shunt accident as a result of a sudden braking maneuver when there is a following vehicle (05) in the rear area (03). In addition, it describes a driving assistance apparatus for carrying out the method and a computer program product which prompts a microprocessor having associated memory means to carry out the method.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: September 10, 2013
    Assignee: VALEO Schalter und Sensoren GmbH
    Inventors: Jens Bammert, Klaus Hoffsommer, Simon Kossmann, Vsevolod Vovkushevsky
  • Patent number: 8514063
    Abstract: A device is described for detecting and wirelessly transmitting at least one measurement signal of the state of a vehicle tire of a vehicle (e.g.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: August 20, 2013
    Assignee: Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH
    Inventor: Markus Stoehr
  • Patent number: 8400289
    Abstract: Disclosed is a tire pressure monitoring system for motor vehicles, including a central unit (2, 7) with at least one trigger module (4), which is integrated into the central unit or connects through control lines (3) to the central unit, and with at least one tire module (6) arranged in a vehicle wheel (5), with the tire module being in communication with the central unit and the trigger module by means of wireless transmission technology, and with the tire pressure monitoring system including fewer trigger modules than tire modules.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: March 19, 2013
    Assignee: Continental Teves AG & Co, OHG
    Inventors: Andreas Heise, Jens Bachon, Stefan Kammann, Ralf Hartmann, Wolfgang Erler, Markus Neumann, Marco Bös, Peter Säger
  • Patent number: 8258938
    Abstract: A pressure detection unit includes a front-wheel transmitter and a rear-wheel transmitter operatively connected to wheel rims of a front wheel and a rear wheel, respectively. Inflation pressure signals transmitted from the front-wheel transmitter and the rear-wheel transmitter are received by a receiver. The receiver is arranged to be offset outward of a straight line connecting the front-wheel transmitter and the rear-wheel transmitter in the vehicle-body width direction. More specifically, the receiver is arranged in a space surrounded by a front cowl and a side panel, the space being between a coolant reserve tank and a radiator. The single receiver receives the signals transmitted from the front-wheel transmitter and the rear-wheel transmitter.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: September 4, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Masakuni Ando, Kunihiko Fukui, Yuki Kanai, Makoto Hattori, Koji Suzuki
  • Patent number: 8138904
    Abstract: An elastic member 11 positioned between an inner surface of a casing 2 and a front face of a pressure sensing portion 8 of a pressure sensor 1 reduces a possibility of liquid and foreign matters in a tire directly reaching the pressure sensing portion 8. The elastic member also increases adhesiveness between the pressure sensing portion 8 of the pressure sensor 1 and a labyrinth structure and further prevents a potting agent 9b from flowing into the sensing portion 8. Moreover, the elastic member 11 is a member constituting at least a part of the labyrinth structure, so that it does not need that a wall is provided on the pressure sensor 1 and a dedicated seal member is provided on the pressure sensing portion 8.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: March 20, 2012
    Assignee: Bridgestone Corporation
    Inventors: Shigeru Yamaguchi, Takao Kokubu
  • Patent number: 8130091
    Abstract: A tire pressure detecting apparatus has a micro-controller, a detecting module and a transceiver. The detecting module is electronically connected to the micro-controller and has a tire pressure detecting unit controlled by the micro-controller to detect a tire pressure inside a tire. The transceiver is electronically connected to the micro-controller, transmits a high frequency signal corresponding to detected characteristic tire parameters from the detecting module to a monitoring system inside a car and receives an external high frequency signal sent from external tire pressure detecting apparatus for the micro-controller, with the micro-controller temporarily delaying sending of the high frequency signal until a waiting time has expired to prevent signal collision between the high frequency signal and the external high frequency signal.
    Type: Grant
    Filed: April 21, 2009
    Date of Patent: March 6, 2012
    Assignee: Orange Electronic Co., Ltd.
    Inventor: Hung-Chih Yu
  • Patent number: 8026802
    Abstract: There is provided a vehicle abnormality detection method detecting an abnormal state in which a high temperature occurs due to maladjustment of a vehicle bearing mechanism section or vehicle brake mechanism section, and a device thereof and a sensor unit thereof. By use of the sensor unit 100 mounted in a rim 31, an air temperature within a tire 2 is sensed as a first temperature and a temperature (second temperature) of the rim 31 is sensed as a temperature related to at least one of a temperature of the vehicle bearing mechanism section and a temperature of the vehicle brake mechanism section 40. Then a temperature difference between the first and second temperatures is calculated and when the temperature difference is a predetermined value or more, it is determined that an abnormality has occurred in the vehicle bearing mechanism section or vehicle brake mechanism section 40. The abnormality is thus detected.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: September 27, 2011
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kazuhiro Shimura
  • Patent number: 8013725
    Abstract: Pneumatic pressure monitoring units that measure pneumatic pressures of respective tires and that transmit results of the measurements of the pneumatic pressures from respective antennas by the use of radio signals are provided at the tires, respectively. A communication unit including a beam controller arranged to selectively direct reception beams towards the respective tires is provided at substantially the center near the bottom surface of a vehicle. The antennas of the respective pneumatic pressure monitoring units are constructed so that directivity patterns of transmission beams are directed towards the inside in axle directions of the tires.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: September 6, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tsuneo Murata, Yuki Yamagata
  • Patent number: 7999684
    Abstract: A test fixture and electronic tag assembly includes an electronic tag comprising an electronic device and a half wave dipole antenna of antenna length L. The antenna is configured as first and second coiled dipole antenna segments connecting with and extending in opposite directions from the electronic device. The assembly further includes a support frame; first and second electrically conductive pads positioned in spaced apart relationship within the support frame; and apparatus for fixedly holding end segments of the first and second coiled dipole antenna segments respectively against the first and second conductive pads in an overlapping relationship.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: August 16, 2011
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John Michael Fenkanyn, Rajat Jain, Richard Nicholas Crano, Dale Roy Norton
  • Patent number: 7983801
    Abstract: A system for and a method of controlling the stability of a vehicle includes an electronic control system controlling a vehicle stability control subsystem based at least in part on static tire data received by the electronic control unit.
    Type: Grant
    Filed: February 22, 2006
    Date of Patent: July 19, 2011
    Assignee: Kelsey-Hayes Company
    Inventor: Danny R. Milot
  • Patent number: 7948380
    Abstract: A remote sensing device includes a plurality of components arranged to form a resonant electrical circuit. The plurality of components includes at least one sensing component having sensing elements distributed among regions of an area of interest. The sensing elements are arranged so that a resonant characteristic of the resonant circuit is modifiable by an external event affecting an element associated with a region. The sensing component may be a capacitor having spatially distributed capacitive elements or an inductor having spatially distributed inductive elements.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: May 24, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: David W. Kuhns, M. Benton Free
  • Patent number: 7948365
    Abstract: A tire air pressure monitoring system has a plurality of sensor units and a receiver. The pressure sensor units are mounted near corresponding tires to measure tire air pressures and transmit transmission signals indicating the respective measured tire air pressures. The receiver has an antenna element, a variable capacitor and a power supply source. The variable capacitor is coupled to the antenna element. The power supply source supplies electric power to the antenna element. The voltage supplied to the variable capacitor is controlled so that a current flowing in the antenna element is changed and its directivity is changed. Thus, the transmission signals will be received more surely.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 24, 2011
    Assignee: Denso Corporation
    Inventor: Takatoshi Sekizawa
  • Patent number: 7948385
    Abstract: The present invention related to devices and methods for using ferrite alignment keys in wireless remote sensor assemblies. In one aspect, the invention provides wireless resonant sensor assemblies comprising a pick-up coil, a ferrite alignment key positioned in and extending from the pick-up coil, and wireless resonant sensor having a receiving element wherein the pick-up coil and the wireless resonant sensor align upon insertion of the ferrite alignment key into the receiving element. The ferrite alignment key may also be part of a resonant sensor such that insertion of a pick-up coil into a receiving element of the alignment key results in a configuration where the alignment key is positioned in and extended from the pick-up coil. Methods of measuring one or more parameters of a monitoring system are also provided. The insertion of the ferrite alignment key aligns the pick-up coil and wireless resonant sensor thereby increasing sensing of the wireless resonant sensor by the pick-up coil.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: May 24, 2011
    Assignee: General Electric Company
    Inventors: Radislav Alexandrovich Potyrailo, William Guy Morris, Charles Lucian Dumoulin, Cheryl Margaret Surman
  • Patent number: 7911332
    Abstract: A wheel having a controlled pressure includes a rim associated with a tank adapted to be filled with a fluid to a first pressure; a tire mounted on the rim and having an inner volume inflated to an operating pressure at a reference temperature, the operating pressure being lower than the first pressure; and at least one valve assembly adapted to establish a communication between the tank, the inner volume of the tire and the external environment. The valve assembly includes a command valve, an exhaust valve and a compensation valve operatively associated with each other. The command valve controls communication between the tank and the inner volume of the tire. The exhaust valve is connected to the external environment, to the inner volume, to the command valve and to the compensation valve. The compensation valve is connected to the exhaust valve and the command valve.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 22, 2011
    Assignee: Pirelli Tyre S.p.A.
    Inventors: Renato Caretta, Pier Giuseppe Piantanida, Stefano Sangiovanni, Maurizio Marchini, Giorgia Sgalari
  • Patent number: 7839270
    Abstract: A vehicle monitoring system which may easily identify information transmitted from each of detecting devices without registration of identification information of the detecting devices and a transponder thereof are provided. A display is disposed in a distal end of the transponders all connected in series through a cable. Each of the detecting devices detects conditions in a predetermined portion of a vehicle and transmits vehicle information including measurement results, its own identification information and the number of transmissions. Each of the transponders determines whether the vehicle information transmitted from the detecting devices is received or not based on the identification information of the detecting devices registered in advance, and transmits the vehicle information to the transponder connected to the transmitting side or the display, when it determines that the vehicle information is to be received.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: November 23, 2010
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Kazuhiro Shimura
  • Patent number: 7746241
    Abstract: A system for communicating information from a detection device is provided through a waterproof and wireless interface. The system generally includes a communication member having an inductor and coupled to the detection device. An interface including another inductor is in communicating relation with the communication member. Upon a signal from the detection device, a magnetic field is produced by the inductor of the communication member and is transmitted to the inductor of the interface.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: June 29, 2010
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Laurence Virgil Feight, Edmund O. Schweitzer, III, Witold R. Tellor, Donald C. Hicks
  • Patent number: 7719406
    Abstract: An inductive signal transmission device including a transponder circuit (1) having at least one first coil, and an interrogation circuit (3) having at least one second coil (4). The transponder circuit is placed on an object (5) capable of rotating about at least one rotational axis (9) passing through the object. The interrogation circuit is placed on a structure, which can be stationary, to which the object is connected. A coupling coil (2), provided with at least one turn describing a ring, is mounted on the structure or the object coaxially to the rotational axis of the object. This coupling coil acts as the inductive coupling interface between the first coil and the second coil such that the inductive signal transmission is independent of the rotation of the object. The transponder circuit is of the passive type and includes at least one sensor for measuring a physical parameter.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: May 18, 2010
    Assignee: Smartrac Technology Germany GmbH
    Inventor: Frank Bajahr
  • Patent number: 7714706
    Abstract: The invention relates to the coupling of a sensor element to a transponder, the connection of said sensor element to the transponder being achieved by capacitive or inductive coupling. This enables any separation layer that may lie between the sensor element and the transponder to be retained, allowing the invention to be advantageously used in gas and liquid-tight containers, such as tires. In addition, electrically non-conductive materials of the object to be measured can be used as a dielectric for the capacitive coupling and electrically conductive parts can form part of a conductor loop for the inductive coupling.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: May 11, 2010
    Inventors: Thomas Ostertag, Walter Schacherbauer
  • Publication number: 20100102944
    Abstract: A pressure sensing device, such as a tire pressure monitoring unit comprises a pressure sensor for measuring pressure of a fluid, such as air or an inert gas, in an environment external to the device, such as within the cavity of a tire. A hollow resonator, or standing wave tube, is coupled to the pressure sensor. The resonator has a free end exposed to the external environment to the extent that pressure variations in the fluid are propagated through the hollow resonator to the pressure sensor via the free end. The hollow resonator has a resonant frequency substantially matching a target frequency such that resonance is established in the tube at the resonant frequency in response to the presence of an audio signal in the fluid having a frequency that substantially matches the target frequency.
    Type: Application
    Filed: October 29, 2008
    Publication date: April 29, 2010
    Inventor: William David Lynn
  • Patent number: 7656282
    Abstract: A tire inflation pressure detecting apparatus includes a second transceiver provided on the body of a vehicle which changes its operation alternately between a second transmitter and a second receiver mode, thereby intermittently transmitting a radio wave. A first transceiver provided on a wheel of the vehicle operates in a first receiver mode to receive the radio wave, thereby charging a charging unit. When the charging unit has been sufficiently charged, the first transceiver changes operation thereof from the first receiver mode to a first transmitter mode, in which the first transceiver first repeatedly transmits an informing signal at predetermined time intervals for a predetermined time period and then transmits a pressure signal. When the informing signal is received by the second transceiver in the second receiver mode, the second transceiver keeps its operation in the second receiver mode until the pressure signal is completely received.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: February 2, 2010
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Hideki Saito, Tomohiro Kuno
  • Patent number: 7612665
    Abstract: A wireless sensor system in which the sensor signal is hardly affected by disturbance and therefore has an increased reliability, which can be constructed light-weight and compact in structure inclusive of the electric power system and in which communication is possible at all times, and a wireless sensor incorporated bearing assembly of a light-weight and compact structure utilizing such wireless sensor system. This wireless sensor system includes a wireless sensor unit and a sensor signal receiving unit. The wireless sensor unit includes a sensor section to detect a target of detection, a digitalizing section to digitalize a sensor signal thereof, and a sensor signal transmitting section.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: November 3, 2009
    Assignee: NTN Corporation
    Inventors: Koichi Okada, Masatoshi Mizutani, Norihiko Sasaki
  • Patent number: 7589620
    Abstract: The invention relates to axle end equipment for a vehicle, in particular an aircraft, the equipment comprising a stationary portion for securing to the axle and a rotary portion for securing to the wheel carried by the axle. According to the invention, the rotary portion comprises first remote connection means in communication with a sensor mounted on the wheel so as to put the sensor and the rotary portion of the equipment into contactless electromagnetic relationship.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: September 15, 2009
    Assignee: Messier-Bugatti
    Inventors: Jean-Clair Pradier, Eric Evenor, Thomas Lavaud, Bertrand Maes
  • Publication number: 20090207011
    Abstract: An auto-charging alert device for a rotatable pneumatic object includes an alert unit for generating a warning signal when an interior pressure of the rotatable pneumatic object is below a predetermined threshold, and an auto-charging unit which includes a charger housing and a charging arrangement. The charging arrangement includes an electric supply unit received in the charger housing and electrically connected with the power inlet of the alert unit, and a kinetic power generator received in the charger housing to electrically connect with the electric supply unit for converting a kinetic energy of the rotatable pneumatic object into electrical energy to be stored in the electric supply unit, such that the electric supply unit is automatically charged to supply adequate electricity to the alert unit for ensuring a proper and consistent operation of the alert unit.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 20, 2009
    Inventor: Hsug Fang Wang
  • Patent number: 7551069
    Abstract: A vehicle tyre data monitoring system has a wheel mounted sensor means that is adapted to transmit one or more of pressure, temperature, angular velocity, and force vector data for a tyre as a digital serial datagram through a two-wire communication channel to a chassis mounted reader means. The communication channel is adapted to simultaneously supply power to the sensor means and receive the data for processing and subsequent display to a user of the system.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: June 23, 2009
    Inventor: Phillip Albert Cohen
  • Patent number: 7541916
    Abstract: A power supply using a static magnetic field of a tire pressure monitoring system is provided. The power supply includes: a static magnetic field generator installed at a car position adjacent to a tire, and generating the static magnetic field; and an EMF (ElectroMotive Force) coil installed at the tire, and generating an induced electromotive force by the generated static magnetic field and a relative motion resulting from rotation of the tire, and providing the generated electromotive force to the transmitter and the sensor.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: June 2, 2009
    Assignee: Hyundai Autonet Co., Ltd.
    Inventors: Sang Hoon Choi, Dong Pil Chun, Dae Hyuk Kwon, Sang Kook Kim, Heu Kyong Na, Won Jo Lee
  • Patent number: 7511609
    Abstract: In the system for monitoring tire pressure in a tire of a vehicle, temporally successive tire pressure measured values are sensed by a transmitting unit, and at least part of the tire pressure measured values is transmitted to a receiving unit with a variable frequency of occurrence, wherein the frequency of occurrence is derived from the sensed tire pressure measured values by means of a control unit.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: March 31, 2009
    Assignee: Infineon Technologies AG
    Inventor: Dirk Hammerschmidt
  • Patent number: 7492249
    Abstract: In order to develop an electronic communication system (100; 100?), designed for a progressive movement means, having at least one base station (10) and having at least one carrier station (60) such that the possible uses of this communication system (100; 100?) can also be extended to other important areas of use of a progressive movement means, it is proposed that the carrier station (60) be designed as in each case at least one sensor unit, which is assigned to at least one wheel or tire (90) of the progressive movement means and—which is designed to detect and/or determine at least one characteristic parameter of the wheel or tire (90), such as for example the air pressure and/or the temperature and/or the wear of the wheel or tire (90).
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: February 17, 2009
    Assignee: NXP B.V.
    Inventors: Jürgen Nowottnick, Thomas Giesler
  • Patent number: 7432801
    Abstract: A method of detecting a rapid leak of gas contained in an automobile tire based on periodic measurements of a pressure Pa and a temperature Ta of the gas. The method includes determining a reference pressure Pcref, calculating an alarm threshold pressure Sref from the reference pressure Pcref, calculating a temperature-compensated pressure Pc at each measurement acquisition period, and comparing the compensated pressure Pc with the alarm threshold pressure Sref, wherein the leak is detected if the compensated pressure Pc is less than the alarm threshold pressure Sref.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: October 7, 2008
    Assignee: Johnson Controls Automotive Electronics
    Inventors: Cyrille Verrier, Regis Leberon
  • Patent number: 7397353
    Abstract: A wireless tire pressure sensing system for an aircraft comprises: dual resonant circuits mounted to a wheel of the aircraft, each resonant circuit comprising: a variable capacitance sensor and a wire loop of a predetermined inductance coupled thereto, one capacitance sensor for monitoring the pressure of a tire mounted to the wheel, and the other capacitance sensor operative as a reference to the one capacitance sensor; an interrogating circuit magnetically coupleable to the dual resonant circuits and operative to induce magnetically a variable frequency current in the dual resonant circuits, the one resonant circuit responding to the induced current with an E-field signal at a first resonant frequency commensurate with the capacitance of the one sensor, and the other resonant circuit responding to the induced current with an E-field signal at a second resonant frequency commensurate with the capacitance of the other sensor; a receiving circuit E-field coupleable to the dual resonant circuits and operative t
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: July 8, 2008
    Assignee: Rosemount Aerospace Inc.
    Inventors: Douglas C. Myhre, Mark J. Buenz, John A. Norlien, William G. Kunik, Wade W. Williams
  • Patent number: 7392119
    Abstract: A method and device for locating the position, on the right or on the left, of a vehicle wheel. The wheel is equipped with two magnetic sensors having axes of maximum sensitivity lying in a plane that is secant to the axis of rotation of the wheel and which are offset from one another in this secant plane by a predetermined angle ?. As the vehicle moves in a given travel direction, a signal generated by the variation in a magnetic field is measured at the terminals of each of the magnetic sensors to deliver two periodic signals phase-shifted from one another by an angular value equal to (+ or ?) ?, this phase shift is used to determine the direction of wheel rotation, and from such direction and the travel direction, the location, on the right or on the left, of the wheel is deduced.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: June 24, 2008
    Assignee: Continental Automotive France
    Inventors: Pierre-Yves Allard, Gilles Dulac
  • Patent number: 7388478
    Abstract: A sensor detects values of inflation pressure of a tire of a vehicle one after another. A controller calculates, from the values of the tire inflation pressure, a deflation rate at which the tire is deflating per unit time. When the deflation rate is higher than a first predetermined value, the controller judges that the tire is suddenly punctuated. When the deflation rate is not higher than the first predetermined value but is higher than a second predetermined value, the controller judges that the tire is deteriorated. When the deflation rate is not higher than the second predetermined value, the controller judges that compressed air is naturally leaked from the tire. An alarm unit gives an alarm indicating punctuation or deterioration of the tire or natural air leaking in response to the judgment of the controller.
    Type: Grant
    Filed: April 26, 2005
    Date of Patent: June 17, 2008
    Assignee: DENSO CORPORATION
    Inventor: Nobuya Watabe
  • Patent number: 7362218
    Abstract: 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.
    Type: Grant
    Filed: January 20, 2004
    Date of Patent: April 22, 2008
    Assignee: Schrader Bridgeport International, Inc.
    Inventors: Alan Kenneth McCall, William David Stewart
  • Patent number: 7333022
    Abstract: A safety monitoring mechanism of a wafer fabrication platform is disclosed. The mechanism comprises a vibration sensor mounted at the loading apparatus of the wafer fabrication platform for detecting vibration generated during the operation of the loading apparatus; a determination module for receiving the vibration detected by the vibration sensor and to convert the vibration into digital signals and for contrast analysis with the preset standard signal range; and an alarm apparatus which produces an alarm signal to operator when the detected digital signal by the vibration sensor exceeds the standard signal range for being abnormal after contrast analysis with that of the module.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: February 19, 2008
    Assignee: Welltech Semiconductor Inc.
    Inventor: Yu-Hung Huang
  • Patent number: 7327244
    Abstract: A valve device includes a metal tube fixed to a tire rim of a vehicle. A valve is mounted in an end of an air passageway of the metal tube. A transmitter includes two switches respectively connected to two contact members fixed on the metal tube. A Bourdon tube includes a fixed end in communication with the air passageway of the metal tube and a movable end. When a tire pressure of the tire is in a normal range, the movable end of the Bourdon tube is between the contact members, leading to an open circuit. When the tire pressure is too high or too low, the movable end of the Bourdon tube is in contact with one of the contact members. One of the switches is turned on to activate the transmitter to send a signal for reminding the driver of the abnormal tire pressure.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: February 5, 2008
    Inventor: Hui-Cheng Chung
  • Patent number: 7312698
    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.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: December 25, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventor: Steven R. Thiele
  • Patent number: 7259663
    Abstract: A pressure detection sensor for detecting a tire internal air pressure and a wheel side communication device for transmitting a detection result of the pressure detection sensor using a preset transmission mode are provided on each wheel. The detection result from the pressure detection sensor is transmitted to an ECU via a vehicle body side communication device provided on a vehicle body. The ECU is able to notify a transmission mode determination device provided on each wheel that adjustment of the tire internal air pressure is being performed by manipulating a state of the tire internal air pressure. The transmission mode determination device determines a transmission mode to be used by the wheel side communication device such that a transmission frequency of a notification related to the occurrence of an abnormality of the wheel is reduced while adjustment of the tire internal air pressure is being performed.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: August 21, 2007
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Ogawa
  • Patent number: 7245208
    Abstract: A tire condition detecting system has transmitters and a receiver. The transmitter is installed in a plurality of wheels and the receiver is installed in a chassis of a vehicle. The receiver has a controller which determines transmission timings in which a transmitting/receiving unit transmits the electrical wave for electrical charging to the transmitters. Moreover the controller detects an electrical wave from a nearby vehicle at the transmission timing. If the detected wave from the nearby vehicle is stronger, the controller waits for a predetermined period before making the transmitting/receiving unit transmit the electrical wave.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: July 17, 2007
    Assignee: DENSO Corporation
    Inventor: Nobuya Watabe
  • Patent number: 7239232
    Abstract: A magnetic temperature sensing device for rotatably moving parts, of the type including at least a magnetic field source element associated to the rotatably moving part and a magnetic field sensing element associated with a fixed part to measure parameters of a magnetic field determined by the magnetic field source element, the parameters of the magnetic field being a function of the temperature of the rotatably moving part. The magnetic field source element permits rotation along at least an axis the direction of the magnetic field as a function of the temperature of the rotatably moving part.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: July 3, 2007
    Assignee: CRF Societa Consortile per Azioni
    Inventor: Daniele Pullini
  • Patent number: 7202778
    Abstract: A wireless tire pressure sensing system for an aircraft comprises: dual resonant circuits mounted to a wheel of the aircraft, each resonant circuit comprising: a variable capacitance sensor and a wire loop of a predetermined inductance coupled thereto, one capacitance sensor for monitoring the pressure of a tire mounted to the wheel, and the other capacitance sensor operative as a reference to the one capacitance sensor; an interrogating circuit magnetically coupleable to the dual resonant circuits and operative to induce magnetically a variable frequency current in the dual resonant circuits, the one resonant circuit responding to the induced current with an E-field signal at a first resonant frequency commensurate with the capacitance of the one sensor, and the other resonant circuit responding to the induced current with an E-field signal at a second resonant frequency commensurate with the capacitance of the other sensor; a receiving circuit E-field coupleable to the dual resonant circuits and operative t
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: April 10, 2007
    Assignee: Rosemount Aerospace Inc.
    Inventors: Mark J. Buenz, John A. Norlien, William G. Kunik, Wade W. Williams, Douglas C. Myhre
  • Patent number: 7145446
    Abstract: A transponder for a tire condition monitoring apparatus is provided. The transponder detects a condition of a tire and wirelessly transmits data representing the detected condition in response to radio waves having a field intensity equal to or greater than a predetermined level. The transponder is provided in a tire valve.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: December 5, 2006
    Assignee: Pacific Industrial Co., Ltd.
    Inventor: Michiya Katou
  • Patent number: 7132930
    Abstract: The invention provides a monitoring device and tire combination wherein an antenna is mounted to the tire in a location spaced from the monitoring device. In one embodiment, the antenna may be mounted to the tire sidewall outside the body cords of the tire. The antenna may be mounted on the outer surface of the sidewall or embedded within the body of the sidewall. The antenna is connected to the monitoring device with a connector. The connector may be electrically coupled to the monitoring device or may be connected to the monitoring device with a plug and socket connection. When the antenna is outside the body cord, the connector may extend from the antenna through the bead filler, over the top of the turn up, or under the bead ring.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: November 7, 2006
    Assignee: Bridgestone Firestone North American Tire, LLC
    Inventors: Paul B. Wilson, Russell W. Koch, Robert J. Trew