Tire Inflation Testing Installation Patents (Class 73/146.2)
  • Patent number: 10576941
    Abstract: A pump system includes a pneumatic pump, a hose, a nozzle that can attach to a tire of a vehicle, and a processing device. The processing device receives a target tire pressure for the tire, receives a current tire pressure of the tire, and controls the operation of the pneumatic pump according to the target tire pressure and the current tire pressure. A method includes receiving a target tire pressure for a tire of a vehicle, receiving a current tire pressure of the tire, and controlling operation of a pneumatic pump according to the target tire pressure and the current tire pressure.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: March 3, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Steven Yellin Schondorf, John Robert Van Wiemeersch, Robert Bruce Kleve, Greg Swadling, Dilip B. Patel
  • Patent number: 10543769
    Abstract: A system and method for issuing a tire pressure deviation in a vehicle's tire is described. The system may include a calculation unit adapted to calculate temporally successive output signals indicative of a tire pressure condition in the vehicle's tire on the basis of temporally successive vehicle's signals. The system may also include a calibration unit adapted to determine a calibration value on the basis of a number of temporally successive output signals from the calculation unit. The system may also include a detection unit configured to detect a tire pressure deviation in the vehicle's tire on the basis of further temporally successive output signals from the calculation unit and the calibration value from the calibration unit, after determination of the calibration value by the calibration unit.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: January 28, 2020
    Assignee: NIRA DYNAMICS AB
    Inventors: Markus Drevö, Anders Stenman, Peter Lindskog
  • Patent number: 10507868
    Abstract: Method and apparatus are disclosed for tire pressure monitoring for vehicle park-assist. An example vehicle includes tires, pressure sensors, and a controller. The controller is to identify a target position within a parking spot for park-assist, determine a tire index based on tire pressure measurements, and identify whether the tire index is within a low range, a caution range, or a normal operating range. The controller also is to adjust, responsive to the tire index being within the caution range, the target position to facilitate access to one of the tires having low pressure.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 17, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Erick Michael Lavoie, John Robert Van Wiemeersch
  • Patent number: 10406866
    Abstract: An assembly determines operating parameters of a tire. The assembly includes a tripod sensor mounted within an inner cavity of the tire underneath a crown portion and an innerliner on which the tripod sensor is mounted. The tripod sensor includes a tri-axial accelerometer for creating a circumferential signal for determining slip ratio, a lateral signal for determining a slip angle, and a radial signal for determining load on the tire.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: September 10, 2019
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Etienne Besnoin, Armand René Gabriel Leconte, Sebastien Willy Fontaine, Frederic Ngo, Claude Bach, Jean-Claude Kreutz, Patrick François Willems, Kanwar Bharat Singh, Anthony William Parsons
  • Patent number: 10391823
    Abstract: A pressure deviation between a setpoint tire pressure and an actual tire pressure for a tire of a vehicle is determined by the following steps: Ascertaining a wheel load for the tire. Ascertaining a dynamic tire radius of the tire. Determining the pressure deviation as a function of the wheel load and the dynamic tire radius.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 27, 2019
    Assignee: VOLKSWAGEN AG
    Inventors: Simon Steinmeyer, Marc-Michael Meinecke, Pär Degerman, Carsten Deeg
  • Patent number: 10358085
    Abstract: A lamp, for a vehicle, that includes at least one light source configured to generate light; a transparent display configured to allow at least a portion of the light to pass through the transparent display; and a processor configured to control the transparent display to display, on a projection surface using the light, information related to the vehicle or driving conditions for the vehicle is disclosed.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: July 23, 2019
    Assignee: LG Electronics Inc.
    Inventor: Geunhyeong Kim
  • Patent number: 10359331
    Abstract: The present disclosure relates to methods, system and devices for monitoring tire pressure data of vehicle wheel units. In an example a method of monitoring and expressing tire pressure data information is provided. The method includes selecting a first threshold pressure value for a tire to establish a first pressure range and a second pressure range. The method also includes monitoring pressure of the tire and generating signals indicative of tire pressure. The method further includes that in the first pressure range the signals are converted to digital signals according to a first conversion variable and in the second pressure range the signals are converted according to a second conversion variable.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: July 23, 2019
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Matthew D. McIntyre, Jean-Christophe Deniau, Brian Farrell, Yasser Gad
  • Patent number: 10207550
    Abstract: A rotary joint assembly including a rotating portion. The rotating portion includes an annular body and a pair of annular sealing members. Each annular sealing member of the pair of annular sealing members is attached to a side of the annular body. An air passageway is formed in the annular body. The rotary joint assembly also includes a non-rotating portion. The non-rotating portion has a non-rotating portion air passageway formed therein. The non-rotating portion air passageway is in fluid communication with the air passageway formed in the annular body. A pair of annular air seal members are provided between the rotating portion and the non-rotating portion. Each annular air seal member of the pair of annular air seal members contacts a sealing surface of one of the annular seal members to provide a seal around an interface between the air passageway formed in the annular body and the non-rotating portion air passageway.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 19, 2019
    Assignee: Dana Heavy Vehicle Systems Group, LLC
    Inventors: Brian V. Knapke, Lloyd G. Racine
  • Patent number: 10160272
    Abstract: Disclosed are a method and a system for monitoring the pressure of a tire. The system measures frequencies of multiple tires mounted on the vehicle, sets a first average frequency for a normal pressure state and a second average frequency for determination of a low pressure state, wherein the first average frequency is calculated by accumulating the measured frequencies for each speed interval in a stop mode and the second average frequency is calculated by accumulating the measured frequencies for each speed interval in a driving mode, calculates low-pressure probabilities for each speed interval of the tire by using the second frequency, a predetermined low-pressure reference frequency, and a predetermined frequency determination interval for determining low-pressure, and determines whether each tire is at low pressure state by aggregating the low-pressure probabilities for each speed interval of the tire.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: December 25, 2018
    Assignee: Hyundai Autron Co., Ltd.
    Inventors: Seung-Hwan Shin, Tae-Hun Kim
  • Patent number: 9649893
    Abstract: A rotary feedthrough for a compressed air supply system is provided between a stator and a rotor rotating relative to this stator. A compressed air channel disposed in the stator is connected to a compressed air line and leads into an annular chamber formed in the rotor, from which at least one working channel leading to a consumer proceeds. The stator is connected in the region of the rotary feedthrough to a control line. A moment of friction occurring in the region of the rotary feedthrough resulting in premature wear is reduced by providing a switchable non-return valve in the annular chamber. Blocking elements which extend within the annular chamber concentrically to the rotational axis of the rotor are moveable into an open position by an actuating element, which is displaced from the stator in the direction of the blocking elements.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: May 16, 2017
    Assignee: CLAAS Selbstfahrende Erntemaschinen GmbH
    Inventors: Sebastian Wagemann, Andreas Krauss
  • Patent number: 9625402
    Abstract: A method, non-transitory computer readable medium, and apparatus for detecting defective brakes are disclosed. For example, the method detects that a wheel of a vehicle is in a position to be read by an infrared (IR) thermometer, signals the IR thermometer to take a temperature measurement of a brake of the wheel, receives the temperature measurement of the brake and determines that a defective brake condition exists when the temperature measurement of the brake is outside a temperature range.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: April 18, 2017
    Assignee: Xerox Corporation
    Inventors: Edul N. Dalal, Wencheng Wu
  • Patent number: 9599538
    Abstract: A method for checking the correct positioning of a vehicle on a measuring station for vehicle measurement includes: a) taking images of at least two tires of the vehicle; b) identifying features, in the images taken, which describe at least one area of the respectively recorded tire; c) fitting a mathematical model to the identified features; d) determining the extent of the flattening of each tire from the fitted mathematical model; e) comparing the flattening of the at least two tires.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: March 21, 2017
    Assignee: ROBERT BOSCH GMBH
    Inventors: Simone Graf, Christian Wagmann
  • Patent number: 9409453
    Abstract: A tire state judging device includes wheel speed sensors configured to detect rotational speeds of tires, and a control unit configured to perform frequency-analysis of detection results of the wheel speed sensors to detect a frequency of a valley part of an output, and calculate an air pressure of the tire from the detected frequency of the valley part. According to this, the tire state judging device has an effect that this can detect a state of the tire irrespective of a state of a road surface.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: August 9, 2016
    Assignee: TOYOTA JIDOSHA KABUSHISKI KAISHA
    Inventor: Daigo Fujii
  • Patent number: 9409452
    Abstract: A method for controlling the tire pressure in multiple axle vehicles whose wheels are equipped with pneumatic tires and speed sensors that supply an evaluation unit with signals indicative of the speed of the respective wheel, by (a) determining simultaneously the speed of a right-hand wheel and a left hand wheel mounted on a common axle; (b) determining the deviation between the two speeds; (c) reducing the deviation in speed by a correction value representative, during a cornering motion, of that component of the deviation n speed between the right-hand wheel and the left-hand wheel which is due to the cornering motion: and (d) indicating the corrected deviation in speed, or of a signal derived therefrom, at least when the correct deviation in speed exceeds a given threshold value.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: August 9, 2016
    Assignee: HUF HULSBECK & FURST GmbH & CO. KG
    Inventors: Gunter Schulze, Karl-Heinrich Preis
  • Patent number: 9057658
    Abstract: A sensor array (13) for checking the pressure of a vehicle tire while being moved over the array comprises two sets (14) and (19) of aligned, facing sensor members. The first set (14) of sensor members is formed by slits (15) cut into a plate of metal to form first fingers (16) connected in cantilevered fashion to a first base portion (17), which extend in the direction of intended vehicle movement to free ends (18). The second set (19) of sensor members is formed by slits (20) cut into a plate of metal to form second fingers (21) connected in cantilevered fashion to a second base portion (22), which extend in the reverse of the direction of intended vehicle movement to free ends (23). The fingers of the two sets are aligned and the free ends (18) and (23) are closely adjacent. Each finger is provided with a load sensing system (28, 29) which provides an indication of the load on the finger as the tire moves over the finger.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: June 16, 2015
    Assignee: Wheelright Limited
    Inventors: Peter Norman Rose, Paul Michael Taylor
  • Patent number: 9024743
    Abstract: A receiver device is tuned to monitor for first transmissions at a first time according to a first criterion and to monitor for second transmissions at a second time according to a second criterion. When the receiver device initially recognizes one of the first transmissions being transmitted according to the first criterion or the second transmissions being transmitted according to the second criterion, the recognized transmission is verified as being valid. When the transmission is recognized as valid, a transmission apparatus is activated to transmit an indication to a receiver so that a localization process can be executed.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: May 5, 2015
    Assignee: Continental Automotive System, Inc.
    Inventors: Jean-Christophe Deniau, Brian J. Farrell
  • Patent number: 9026305
    Abstract: A vehicle service or inspection system including a load roller for applying a radial load to a vehicle wheel assembly consisting of a tire mounted to a rim, with at least one sensor for acquiring measurements of acoustical energy generated by the wheel assembly during loaded rotational movement. The vehicle service or inspection system is configured with a programmed processor to evaluate the acquired measurements to provide a measure of tire road noise, identification of tire defects, and/or identification of sources of noise, vibrations, or acoustical energy on the tire surface such as tire flat spots, cupping, bubbles, embedded foreign objects, or other defects. The processor is further configured with software instructions to utilize the acquired measurements to provide a consumer with a figure of merit associated with the acoustics of the tire undergoing testing.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: May 5, 2015
    Assignee: Hunter Engineering Company
    Inventors: Gregory F. Meyer, Joel Clasquin, Timothy A. Strege
  • Patent number: 8988207
    Abstract: Electronic components, conductors, and the like that the form a detecting-and-transceiving circuit are positioned in a space inside a casing other than a space E that is enclosed by an imaginary surface that forms a predetermined angle ? with respect to a coil axis x toward the outside from a position on the edge of an aperture surface of the end part of a coil-shaped antenna 450 in the direction of the coil axis x. The angle ? is, e.g., 5° or more and is preferably 90°. Minute electronic components and conductors may be positioned within the space E if doing so does not dramatically change the magnetic current of the antenna 450.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 24, 2015
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Koji Nakatani
  • Patent number: 8978459
    Abstract: Measurement equipment for measuring the inflation pressure of a tire of a vehicle wheel 1. The equipment comprises a body 16 defining an internal volume, a communication orifice 19 for putting the inside volume of the body 16 into communication with an inflation chamber situated between a rim 2 and a tire of the wheel and containing an inflation gas and an indicator member 25 slidably mounted in the body 16 so as to define a gastight separation between a first chamber 26 containing a given quantity of a reference gas and a second chamber 27 into which the communication orifice 19 leads. As a result, the indicator member 25 is subjected to opposing pressures that exist in each of the chambers. A position-identification device 30 is operative to identify the position of the indicator member in the body.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: March 17, 2015
    Assignee: Messier-Bugatti-Dowty
    Inventor: David Frank
  • Patent number: 8970361
    Abstract: A wrong operation detection device is disclosed for monitoring whether or not a calibration start for determining an initial deflation index is issued in a tire pressure unadjusted state after a deflation warning in a tire pressure monitoring system for detection of deflation of a tire. The device includes comparison means for comparing a first deflation index serving as a deflation index at any time point in a period from issue of the deflation warning to vehicle stop after the issue of the warning, with a second deflation index serving as a deflation index obtained after the calibration start; detection means for detection of wrong operation of a reset button based on a comparison result by the comparison means; and warning means for issuing a warning when the detection means detects the wrong operation.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 3, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Seigou Sakagami, Yusuke Fukuba
  • Patent number: 8948967
    Abstract: The present invention relates detecting the conditions of tires for a vehicle. In the present invention, signals are received from a plurality of wheel speed sensors, a reverse gear sensor, and a brake sensor. Errors of the wheel speed sensors are estimated using the received signals, a signal having a corrected error is obtained using the estimated errors, linear interpolation and band-pass filtering processing are performed on the signal, a tire resonant frequency is estimated using the processed signal, tire pressure is estimated based on the estimated resonant frequency, and whether or not to generate an alarm is determined based on the calculated tire pressure. Accordingly, there is an advantage in that whether or not pressure within a tire of a vehicle is abnormal can be determined in a cheap calculation device for a short time using a conventional wheel speed sensor.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: February 3, 2015
    Assignee: Hyundai Autron Co., Ltd.
    Inventor: Guy Championnet
  • Publication number: 20150020584
    Abstract: A wheel position detector for a vehicle includes: a transmitter at each wheel having a first control portion for transmitting a frame with specific identification information; and a receiver at a vehicle body receiving the frame from one wheel and having a second control portion for performing wheel position detection; and a wheel speed sensor for detecting a tooth of a gear. The second control portion: acquires gear information indicating a tooth position; sets a variation allowance based on the tooth position; registers the one wheel with using the variation allowance; and performs the wheel position detection by excluding an identified wheel as the one wheel from a candidate of another wheel mounting the transmitter that transmits another frame when the second control portion identifies the one wheel.
    Type: Application
    Filed: December 12, 2012
    Publication date: January 22, 2015
    Applicant: DENSO CORPORATION
    Inventors: Noriaki Okada, Nobuya Watabe, Masashi Mori, Takatoshi Sekizawa
  • Patent number: 8935956
    Abstract: A touch-control tire pressure sensor device includes a housing holding an air nozzle at one side thereof, a circuit board accommodated in the housing and carrying a processor and memory unit having electrically coupled thereto a pressure sensor unit, a temperature sensor unit, an acceleration sensor unit, a LF transmission interface and a RF transmission interface for transmitting a sensed signal to an on-vehicle main unit, a battery pack providing the circuit board with the necessary working voltage, and a conducting plate having one end connected to the touch sensor IC and an opposite end kept in contact with the air nozzle.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: January 20, 2015
    Assignee: Cub Elecparts Inc.
    Inventors: San-Chuan Yu, Chao-Ching Hu, Tsan-Nung Wang
  • Patent number: 8935042
    Abstract: Apparatus (4; 5) for checking the inflation pressure of a tire (3) of a vehicle (2) while the tire is being moved over the apparatus in a direction of travel (A). The apparatus comprises a base (7), a platform (8) which is mounted over the base, a first load sensor system (9) arranged between the platform and the base, and a second load sensor system (12) mounted on an upper surface of the platform and comprising a linear array of high resolution sensors (13, 25) extending across the platform. A data processing unit (6) processes data obtained by sampling the outputs of the first and second sensor system and provides an indication of the inflation pressure of the tire. The data obtained by sampling the output of the first sensor system may be used to determine the total load borne by the platform, and/or the direction of travel of the tire over the platform, and/or the speed of travel of the tire over the platform and/or the tracking angle of the vehicle tire.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: January 13, 2015
    Assignee: Wheelright Limited
    Inventors: Paul Michael Gerald Taylor, David Rathbone
  • Publication number: 20150007645
    Abstract: A method for testing a punctured tyre's resistance to a loss in pressure includes: creating a plurality of punctures in a wall of the tyre by inserting a plurality of puncturing objects through the wall; running the tyre with the puncturing objects in the wall thereof over a given distance with a regulated inflation pressure; stopping the running of the tyre; and determining, for each puncture, a pressure loss resistance index based on an estimate of a leak rate of the puncture.
    Type: Application
    Filed: February 15, 2013
    Publication date: January 8, 2015
    Inventors: Jose Merino Lopez, Michel Ahouanto
  • Patent number: 8912896
    Abstract: A TPMS setting tool includes a housing carrying a display unit and an input device on the outside and a circuit board and a power supply device on the inside, the power supply device and the circuit board being electrically coupled together to provide the TPMS setting tool with the necessary working power supply. The housing has a receptacle provided at one side thereof and a connection port with multiple pins mounted inside the receptacle for the connection of a TPMS, enabling the desired communication protocol and ID code to be written into the inserted TPMS.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 16, 2014
    Assignee: Cub Elecparts Inc.
    Inventors: San-Chuan Yu, Yuan-Tung Hung, Tsan-Nung Wang, Chi-Hung Chen, Chao-Ching Hu
  • Patent number: 8909420
    Abstract: A system for monitoring a fill level of a plurality of tires of a vehicle includes a situation detecting unit set up for detecting a situation in which adaptation of a fill level of at least one of the tires of the vehicle is expected. The system further includes a fill level adaptation assistant set up for autonomously assisting a user of the vehicle during the adaptation of the fill level of the at least one tire when the situation is detected.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: December 9, 2014
    Assignee: Continental Automotive GmbH
    Inventors: Gregor Kuchler, Frank Fischer, Juergen Spotka
  • Patent number: 8887562
    Abstract: Provided is a method for testing a tire. The method may comprise performing a first stopping distance test on a tire of a first specification at a first inflation pressure and gathering data about the first stopping distance test. The method may further comprise performing a second stopping distance test on a tire of the first specification at a second inflation pressure and gathering data about the second stopping distance test. The method may further comprise performing a first traction test on a tire of the first specification at either the first inflation pressure or the second inflation pressure and gathering data about the first traction test.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: November 18, 2014
    Assignee: Bridgestone Americas Tire Operations, LLC
    Inventors: Jacob R. Kidney, John L. Turner
  • Patent number: 8868290
    Abstract: The present disclosure relate to an indirect tire pressure monitoring system (TPMS). In some embodiments, the indirect TPMS has magnetic field sensor that detects a modulated magnetic field indicative of one or more resonance parameters of an automobile tire. The magnetic field sensor generates a modulated sensor signal based upon the modulated magnetic field. An analog-to-digital converter (ADC) converts the modulated sensor signal to a digital sensor signal, which is provided to a digital signal processing unit that perform analysis of the digital sensor signal to determine the one or more resonance parameters. A communication interface transmit data corresponding to the one or more resonance parameters to an electronic control unit (ECU).
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: October 21, 2014
    Assignee: Infineon Technologies AG
    Inventor: Dirk Hammerschmidt
  • Patent number: 8833152
    Abstract: An apparatus for measuring the pressure of a tire on a moving vehicle, comprising measuring device (14, 18, 24) which is provided on or inside a floor or ground so as to interact with the tire and which generates an electronically analyzable measurement signal in reaction to the tire driving over the measuring device, and analysis unit (22, 40) which output a tire pressure signal corresponding to the tire pressure in reaction to the measurement signal. The measuring device includes an optical unit (18) for acquiring a tire width as the width of a tire footprint forming when the tire drives over the floor/ground. The analysis unit is designed to determine a footprint length from a series of tire width data generated by the optical unit and/or from a pattern of a pressure measurement signal generated by the measuring device and to determine the tire pressure from a footprint area calculated as a function of the length and width of the footprint and from a force applied to the footprint area by the tire.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: September 16, 2014
    Assignee: MAHA Maschinenbau Haldenwang GmbH & Co. KG
    Inventor: Frank Schaefer
  • Patent number: 8823505
    Abstract: A tire air pressure detecting device includes an air pressure detecting unit, a transmitting unit, a running state detecting unit, an air pressure change rate detecting section and a frequency adjustment section. The frequency adjustment section is configured to adjust a transmitting frequency at which the detected value of the tire air pressure detected by the air pressure detecting unit is externally transmitted by the transmitting unit according to the running state detected by the running state detecting unit and the air pressure change rate detected by the air pressure change rate detecting section. The frequency adjustment section is further configured to variably set a threshold value for switching the transmitting frequency from low frequency to high frequency according to the running state and the air pressure change rate.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: September 2, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takahiro Maekawa, Tetsuro Hirohama, Takashi Shima
  • Patent number: 8789412
    Abstract: A tire condition monitoring system includes a transmission device, a receiving device, and a monitoring section. The transmitting device includes a sensor which detects, as tire information, a condition of gas in the tire cavity area surrounded with a tire and a rim, a transmitter which wirelessly transmits the tire information, and a housing having a wall surrounding the sensor and the transmitter and separating an inner space from the tire cavity area. The housing wall defines a communicating through hole which enables communication between the cavity area and inner space and a selectively non-communicating through hole having a member which is movable between blocking and unblocking positions to impede and enable communication, respectively, between the cavity area and inner space. The receiving device receives the tire information, and the monitoring section determines whether a tire anomaly exists based on the tire information and provides a result.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: July 29, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Daisuke Kanenari
  • Patent number: 8763449
    Abstract: A tire monitoring device includes a housing mounted within a cavity of a tire/wheel assembly. A sensor within the housing senses a condition within the cavity via an open passage in the housing. A hollow first tube extends away from the housing coaxial to an axis of the open passage. The first tube has an internal bore aligned with the open passage, and includes: a first tubular portion having a first cross sectional width; and a second tubular portion having a second cross sectional width smaller than the first cross sectional width. The second tubular portion further has a free end opening positioned in the cavity above a level of a liquid present in the cavity when the tire monitoring device is positioned at a lowest point in the cavity. The opening has a cross sectional width sized to prevent entrance of the liquid past the opening.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 1, 2014
    Assignee: 1814393 Ontario Inc.
    Inventor: Junfeng Hu
  • Patent number: 8742912
    Abstract: A self-powered tire pressure sensor device. The sensor device includes a power circuit, an air pressure measurement sensor, a signal circuit and a wireless transmission circuit. The power circuit converts mechanical acceleration experienced by the device into electrical potential using an electromechanical transducer. Mechanical acceleration due to collisions between the mobile sensor device and the wall of the tire while the tire is in motion cause the transducer to emit a small electrical charge. An electrical potential storage element in the power circuit accumulates and stores the charge as electrical potential. Alternatively the power circuit receives and converts electromagnetic energy into electrical potential. The electrical potential powers an air pressure measurement sensor within the tire. A signal circuit and wireless transmission circuit transmit the measurement to a chassis-mounted receiver, which makes the tire pressure measurement available to systems remote from the tire.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: June 3, 2014
    Assignee: STMicroelectronics, Inc.
    Inventor: Richard Austin Blanchard
  • Patent number: 8736458
    Abstract: A system includes a camera, a weigh-in-motion scale, and a processor. The camera is configured to capture one or more images of a vehicle as the vehicle goes over the weigh-in-motion scale. The weigh-in-motion scale is configured to generate one or more weight measurements of the vehicle as the vehicle goes over the weigh-in-motion scale. The processor is operatively coupled to the camera and the weigh-in-motion scale. The processor is configured to determine an acceleration of at least a portion of the vehicle based at least in part on the one or more images of the vehicle. The processor is also configured to adjust at least one of the one or more weight measurements based on the acceleration.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: May 27, 2014
    Assignee: Signature Research, Inc.
    Inventors: William R. Reynolds, James E. Hertel, Keith R. Rutkowski
  • Patent number: 8736435
    Abstract: A tire information monitoring system includes a transmitting device, provided in a tire cavity region, for transmitting tire information, a receiving device, provided in a vehicle body, that receives the tire information from the transmitting device and determines a tire condition based on the tire information, and a setting device that transmits identification information and a criterion to the receiving device so as to set the identification information of the transmitting device and the criterion of the tire information used for determining the tire condition by the receiving device. The setting device can be a mobile telecommunication terminal device for setting the identification information and the criterion in the receiving device using a program downloaded via an external network.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: May 27, 2014
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventor: Daisuke Kanenari
  • Patent number: 8731771
    Abstract: A tire inflation pressure obtaining unit obtains tire inflation pressure. An inflation pressure storing unit stores a tire inflation pressure after start of travel of a vehicle as an after-travel inflation pressure. A pressure reduction determining unit determines reduction in the tire inflation pressure based on the tire inflation pressure obtained. A reference pressure setting unit sets larger one of the after-travel inflation pressure and a predetermined lowest reference pressure as a reference pressure of tire inflation pressure determination when reduction in the tire inflation pressure is determined, and sets the lowest reference pressure as a reference pressure of tire inflation pressure determination when reduction in the tire inflation pressure is not determined. An alarm unit generates an alarm when the tire inflation pressure becomes below an alarm pressure threshold which is determined from the reference pressure.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: May 20, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideki Kusunoki, Hideki Ohashi
  • Patent number: 8723662
    Abstract: In a tire pressure detecting apparatus, a receiver stores wheel positions detected by a previous wheel position detection as previous wheel positions. When an ignition switch is turned on and until wheel positions are newly specified by a current wheel position detection, the receiver permits an indicator to indicate tire pressure of each of wheels based on the previous wheel positions to notify a driver of the tire pressure from an earlier timing. The receiver permits the indication of the tire pressure based on the previous wheel positions only when a difference of the tire pressure between the wheels is equal to or less than a threshold. If there is a possibility that tire pressure of one of the wheels is insufficient, the receiver prevents the indicator to indicate the tire pressure until a current wheel position detection finishes.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 13, 2014
    Assignee: Denso Corporation
    Inventors: Nobuya Watabe, Masashi Mori, Noriaki Okada, Takatoshi Sekizawa
  • Patent number: 8714002
    Abstract: Described is a device (51) for monitoring the state of inflation of vehicle wheel tires, the wheels comprising a rim (100) and a respective tire (101) delimiting a hollow space (103) inside the wheel from the outside environment (104).
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: May 6, 2014
    Assignee: Barbalab S.r.l.
    Inventor: Marco Faretra
  • 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
  • Publication number: 20140060168
    Abstract: The invention provides measurement equipment for measuring the inflation pressure of a tire of a vehicle wheel 1, the equipment comprising: a body 16 defining an internal volume; a communication orifice 19 for putting the inside volume of the body 16 into communication with an inflation chamber situated between a rim 2 and a tire of the wheel and containing an inflation gas; an indicator member 25 slidably mounted in the body 16 so as to define a gastight separation between a first chamber 26 containing a given quantity of a reference gas and a second chamber 27 into which the communication orifice 19 leads, such that the indicator member 25 is subjected to opposing pressures that exist in each of the chambers; and position-identification means 30 for identifying the position of the indicator member in the body.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Applicant: MESSIER-BUGATTI-DOWTY
    Inventor: David FRANK
  • Patent number: 8635906
    Abstract: A wheel monitoring system that includes a tracking filter apparatus for tracking a signal that has a varying main frequency. The tracking filter apparatus has an adjustable filter and a filter controller arranged to measure the amplitude of the filtered signal and to compare amplitude against a reference value. The filter controller adjusts the cut off frequency of the filter if the measured amplitude differs from the reference value by an amount that exceeds a threshold value. The filter controller adjusts the cut off frequency such that the main frequency lies within the roll off region of the filter's frequency response. The system may be used to track signals that are produced by shock sensors in a wheel mounted monitoring device.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: January 28, 2014
    Assignee: Schrader Electronics Limited
    Inventors: Samuel Strahan, Christopher Ainsworth
  • Patent number: 8606535
    Abstract: The invention describes a method for temperature compensation of measured pressure values in a tire pressure control system of a vehicle, which is equipped with wheels with pneumatic tires in which a pressure sensor arranged below the tire obtains the pressure values and a temperature sensor arranged below the tire obtains temperature values and the measured pressure values are referred to a predefined reference temperature, giving due consideration to the known proportionality between the pressure and the temperature at a volume of air in the tire which is assumed to be constant. The invention provides that an offset of the temperature supplied by the temperature sensor from the mean air temperature prevailing in the tire is estimated for the temperatures measured at any time in the tire, and the currently measured temperature values are corrected using the estimated temperature offset as a correction value.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: December 10, 2013
    Inventors: Ulrich Häfele, Michael Dennig
  • Patent number: 8600607
    Abstract: The invention describes a method for allocating identifiers of wheel electronics of a tire pressure monitoring system to positions of wheels of a vehicle, the simultaneously occurring rotation speeds of the wheels, normalized on a consistently chosen rolling radius of the wheels differ during cornering because of the different positions of the wheels on the vehicle, so that the positions of the wheels can be sorted according to increasing speed of the wheels during cornering, the wheel electronics of each wheel comprising a pressure sensor, a motion sensor, a memory and a transmitter, which transmits signals to a receiver being connected to an evaluation device, which receives the transmitted identifiers and compares the distances which the corresponding wheels have traveled in a defined time span, sorts the identifiers according to the length of the distance traveled in the defined time span and allocates the identifiers to the wheel positions.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: December 3, 2013
    Assignee: Huf Huelsbeck & Fuerst GmbH & Co. KG
    Inventors: Ralf Kessler, Andreas Kraft, Markus Wagner, Juergen Schoenbeck, Peter Brand
  • Patent number: 8599044
    Abstract: The different advantageous embodiments provide an apparatus comprising a number of tires for a vehicle, a number of systems, and a number of processor units. The number of systems is configured to generate data about the number of tires and the vehicle. The number of processor units is configured to monitor the data and manage the health of the number of tires.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: December 3, 2013
    Assignee: The Boeing Company
    Inventors: Jeanne C. Maggiore, Wayne R. Majkowski, David A. Followell
  • Patent number: 8593273
    Abstract: Embodiments relate to unidirectional TPMS utilizing information from a corresponding vehicle system in order to correlate with vehicle speed information to be used in a tire localization methodology. In an embodiment, the vehicle system is an anti-lock brake system (ABS), and the vehicle speed can be used in a localization scheme that reconstructs a +/?1 g ripple with waveform, amplitude, frequency and phase parameters. Because the waveform is known to be sinusoidal (due to the wheel rotation), the amplitude is known to be 2 g peak-to-peak (due to the gravitational +/?1 g), the frequency depends on vehicle speed (which can be estimated from centrifugal force measurements), and an algorithm is discussed herein for determining the phase by correlation, the +/?1 g ripple can be reconstructed and the wheels localized therefrom.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: November 26, 2013
    Assignee: Infineon Technologies AG
    Inventors: Martin Gotschlich, Thomas Lange
  • Patent number: 8589025
    Abstract: A tire cornering power estimation and monitoring system may include a steering torque sensor, a steering wheel angle sensor, a yaw rate sensor, a lateral acceleration sensor, and a speed sensor. The system may further include at least one controller configured to receive signals from the steering torque sensor, steering wheel angle sensor, yaw rate sensor, lateral acceleration sensor, and speed sensor and send a notification if the signals indicate that one or more of the vehicle's tires need to be checked or serviced. The system may further include a notification system configured to receive a signal from the controller and indicate that one or more of the vehicle's tires need to be checked or serviced.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 19, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Dexin Wang, Rena Hecht Basch
  • 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: 8573045
    Abstract: Embodiments relate to indirect tire pressure monitoring systems (TPMSs) and methods that utilize anti-lock braking system (ABS) signals. In embodiments, information from the ABS Hall signal is obtained before pulse forming. The information can be analyzed for resonance within the ABS sensor. In some embodiments, the digitized information can be modulated onto the conventional ABS wheel speed clock signal for transmission to and analysis by the indirect TPMS electronic control unit (ECU). According to embodiments, additional information about higher-order harmonics of the wheel rotation can be provided to the TPMS ECU, which can then calculate a more accurate estimation of tire pressure while reducing warning latency.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: November 5, 2013
    Assignee: Infineon Technologies AG
    Inventor: Martin Gotschlich
  • Patent number: 8570165
    Abstract: A tire pressure monitor system tool that stores information regarding a plurality of tire pressure monitor systems. The information may include procedures for resetting and diagnosing the tire pressure monitor system. The tool may include a storing module that stores the information and a displaying module that causes the information to be displayed on a display of the tool. The tool may enable a user to input data regarding a vehicle. Based on the vehicle data input by the user, the tool may determine a tire pressure monitor system installed on the vehicle using the information stored. Based on the tire pressure monitoring system installed on the vehicle, the tool may determine one or more reset or diagnostic procedures that may be performed by the tool. The tool may also reference the owner's manual of the vehicle. The tool may also include an updating module that updates the information stored by the tool. The tool may also include an update interface that may be, for example, an RS232 port.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: October 29, 2013
    Assignee: Service Solutions U.S. LLC
    Inventor: Robert Kochie