Electric Patents (Class 73/146.5)
  • Patent number: 10660143
    Abstract: A tire pressure monitoring system (TPMS) and TPMS sensor module are provide. The TPMS sensor module includes a pressure sensor configured to measure an internal air pressure of a tire and generate tire pressure information, a microcontroller unit electrically connected to the pressure sensor, and a transceiver electrically connected to the microcontroller unit, the transceiver configured to transmit a message including the pressure information. Where, on a condition that the transceiver receives an acknowledgement in response to the transmitted message, the microcontroller unit is configured to set the transceiver into a standby mode, and, where, on a condition that the transceiver does not receive any acknowledgement in response to the transmitted message within a waiting period, the microcontroller unit is configured to instruct the transceiver to retransmit the message, and the transceiver is configured to retransmit the message after the waiting period.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: May 19, 2020
    Assignee: Infineon Technologies AG
    Inventors: Michael Kandler, Wolfgang Scheibenzuber, Maximilian Werner
  • Patent number: 10596866
    Abstract: A tire air pressure detection system and a vehicle body side device to detect air pressure of a plurality of tires. The vehicle body side device causes a transmission unit to transmit to all tire side devices, a transmission stop signal instructing transition to a transmission stop state and then the transmission unit transmits a transmission standby signal at a transmission strength that enables the signal to reach the tire side devices; and then the transmission unit transmits to the one of the tire side devices, a transmission request signal requesting a transmission of a signal including a unique identifier stored in that tire side device; and when it is determined that a reception unit has received a response signal in response to the transmission request signal, the transmission unit transmits a transmission standby signal and a transmission request signal to the tire side device corresponding to the next tire.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 24, 2020
    Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Qiying Li
  • Patent number: 10479147
    Abstract: A self-adaptive method for assisting in the inflation of tires of a vehicle that is stationary in an immobilization mode, the method including continuously measuring at least the pressure of each tire by way of a wheel unit, transmitting signals on the state of the tires between each wheel unit and a central unit, these signals being transmitted by each wheel unit through frequency-shift keying between two first predetermined frequencies defining a first frequency band. In a immobilization mode, each wheel unit is reprogrammed such that it transmits, to the central unit, first and second frequency-shift keyed signals respectively with first and second frequency bands, the second band being wider than the first band.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: November 19, 2019
    Assignees: Continental Automotive France, Continental Automotive GmbH
    Inventors: Sylvain Godet, Stéphane Billy, Sébastien Kessler
  • Patent number: 10442257
    Abstract: Examples of techniques for determining tire leak rate are disclosed. In one example implementation, a method includes receiving, by a processing device, temperature data, pressure data, tire characteristics, and an estimated leak rate associated with the tire. The method further includes calculating, by the processing device, a temperature normalized fused pressure after fusing the temperature data and the pressure data. The method further includes determining, by the processing device, the tire leak rate based at least in part on a decay of the temperature normalized fused pressure over time. The method further includes providing, by the processing device, an alert to an operator of the vehicle that a leak is detected based at least in part on a comparison between the tire leak rate and a leak rate threshold.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 15, 2019
    Inventors: Amin Abdossalami, Joseph K. Moore, Liviu Serbu, Fahim Javid, Mansoor Alghooneh
  • Patent number: 10377191
    Abstract: Disclosed herein are a tire pressure estimating apparatus and a tire pressure estimating method thereof.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: August 13, 2019
    Inventor: Joong-Hyun Kim
  • Patent number: 10345119
    Abstract: Systems are provided for observing a rotation of a wheel of a vehicle. In one embodiment, a system includes: a wheel insert positioned within a center bore of the wheel. The wheel insert is movable between a first position and a second, expanded position and in the second, expanded position the wheel insert is coupled to the wheel for rotation with the wheel. The rotation of the wheel insert is to be observed by a sensor. The wheel insert includes a plurality of arms that are movable between a first state and a second, expanded state, and at least one of the plurality of arms is moved into the second, expanded state when the wheel insert is in the second, expanded position.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 9, 2019
    Inventor: Yung-Chang Ko
  • Patent number: 10328754
    Abstract: A method for self-positioning tires and a tire pressure monitoring system are provided. The method for self-positioning tires includes: acquiring first position information detected by the first positioning circuit; acquiring second position information of each emitter respectively via corresponding second positioning circuit; and acquiring corresponding relative position information respectively between the receiver and each emitter based on the first position information of the receiver and the second position information of each emitter. In this way, compared with the method for achieving self-positioning function in the art, extra wires may not be needed and the origin wires of a vehicle may not be altered in the method of the present disclosure.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: June 25, 2019
    Assignee: AutoChips Inc.
    Inventor: Jian Zhou
  • Patent number: 10252583
    Abstract: Embodiments provide a fail-safe device, a tire pressure measurement system, a vehicle, a tire, a method and a computer program for monitoring a first sensor of a tire pressure monitoring system. The fail-safe device includes a first input for a first signal from the first sensor. The first signal indicates a first physical quantity. The fail-safe device includes a second input for a second signal from a second sensor. The second signal indicates a second physical quantity. The fail-safe device further includes a control module to verify the first signal based on the second signal and a physical relation between the first and the second physical quantities.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: April 9, 2019
    Assignee: Infineon Technologies AG
    Inventors: Michael Kandler, Thomas Lange, Jooil Park
  • Patent number: 10220659
    Abstract: A tire pressure monitoring system includes a plurality of detection devices that are provided in respective ones of a plurality of tires of a vehicle and each wirelessly transmit an air pressure signal including air pressure information of tire in response to a request signal and a monitoring device that transmits the request signal to each of the detection devices and receives the air pressure signal transmitted from each of the detection devices in response to the request signal, to monitor air pressure of each of the tires. Each of the detection devices, when receiving a request signal, measures the received signal strength of the received request signal and transmits to the monitoring device an air pressure signal at a different diming in accordance with the measured received signal strength. The monitoring device receives the air pressure signals transmitted from the plurality of detection devices at different timings.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: March 5, 2019
    Inventors: Makoto Saburi, Yoshihiro Hamada
  • Patent number: 10105997
    Abstract: A standalone tire identification tag and standalone sensor module are mounted to a tire and configured to share and store tire identification and tire parameter-measuring sensor data through a common data sharing interface.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: October 23, 2018
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John Michael Fenkanyn, Peter Jung-min Suh, Amrita Patel
  • Patent number: 10086661
    Abstract: A tire condition detecting apparatus includes a transmitting section, a receiving section, a control section, a property detecting section, and a battery, which is a power source for the apparatus. The control section operates in a control mode that is selected from a normal mode and a power saving mode. In the power saving mode, power consumption associated with reception of the wirelessly transmitted signal from the external device is less than that in the normal mode. When the amount of change in the electrical property of a valve stem detected by the property detecting section exceeds a reference change amount, the control section switches the control mode to the normal mode.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 2, 2018
    Inventor: Yasuhisa Tsujita
  • Patent number: 10088372
    Abstract: Disclosed is a wireless temperature measurement apparatus using a SAW device which calculates a temperature by detecting a change in resonance frequency, the resonance frequency being physically changed by a temperature. The apparatus includes: a surface acoustic wave (SAW) device including an inter-digital transducer (IDT) generating a surface acoustic wave and a reflector reflecting the surface acoustic wave and outputting the wave to an antenna, wherein the surface acoustic wave is physically deformed by a temperature change, and a reader generating a transmitting signal within a set frequency band and transmitting the signal to the SAW device, detecting an amplified resonance frequency signal which matches a deformed surface acoustic wave, the deformed surface acoustic wave being one of the reflected waves and being physically deformed by the temperature change, and detecting a temperature of the SAW device by comparing the amplified resonance frequency with a preset frequency.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: October 2, 2018
    Assignee: HANBIT EDS CO., LTD.
    Inventors: Jae Kee Jeong, Hong Sung Kim, Pil Seon Eo
  • Patent number: 10082446
    Abstract: Provided is a tire testing apparatus capable of accurately and easily measuring a load which a tire receives from a road surface. The tire testing apparatus includes a plate buried in a road surface with which a tire is in contact, at least one ground-contact-force sensor measuring a ground-contact force during a contact of the tire, and at least one plate sensor measuring a load applied to the plate. According to the tire testing device, a ground-contact force of the tire can be measured by the ground-contact-force sensor and a load which the tire applies to the plate can be measured by the plate sensor.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: September 25, 2018
    Assignee: A&D COMPANY, LIMITED
    Inventors: Yukihisa Ito, Kazuki Kido, Tatsuo Ichige, Masaaki Banno
  • Patent number: 9902216
    Abstract: Tire pressure control devices include first sensors to deliver repeatedly a measured value M1 for the rotation speed of the wheel. A measurand, from which the rotation speed of the associated wheel can be derived, is detected in a pointwise manner by means of a second sensor over a predetermined rotation angle ? of the wheel as a function of time, is subjected to a low pass filtering in a subsequent first time interval ?t1 and from the filtered development of the measurand a second measured value M2 is determined, which is a measurement for the rotation speed or respectively for the angular speed of the associated wheel. Each tire pressure control device transmits at the end of a second time interval ?t2 the second measured value M2 together with an identification of the tire pressure control device to a central unit. Comparing M1 and M2 determines wheel position.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: February 27, 2018
    Inventors: Markus Wagner, Peter Brand, Markus Alexander
  • Patent number: 9834044
    Abstract: A device (D) fixes, to the internal wall of a tire (P), an electronic box (100) for measuring parameters inside the tire, the device (D) associating the box (100) with a flexible receptacle (200) which, being fixed to the internal wall by an adhesion means (300), is preformed so as to accept and hold said box (100), remarkable in that said flexible receptacle (200) forms a compartment (210) equipped with an opening (220), by means of which said box (100) is introduced and which is bordered by an edge (221) extending externally and offering a contact surface (222) for the adhesion means (300) so that, once the receptacle (200) is fixed, said opening (220) is closed by the internal wall on which the receptacle (200) is fixed.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: December 5, 2017
    Assignee: LDL Technology SAS
    Inventor: Dominique Luce
  • Patent number: 9783013
    Abstract: A wheel position detector for a vehicle includes: a transmitter at each wheel having a first control portion for generating and 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; corrects the tooth position based on a time difference between acquiring of the gear information and receiving time of the frame; and specifies the one wheel based on the tooth position at reception time.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: October 10, 2017
    Inventors: Noriaki Okada, Nobuya Watabe, Masashi Mori, Takatoshi Sekizawa
  • Patent number: 9757998
    Abstract: In a wheel position detector for a vehicle, a transmitter on each wheel repeatedly transmits a data frame containing identification information when an angle of the transmitter reaches a transmission angle. A receiver for receiving the frame is mounted on a body of a vehicle and performs wheel position detection based on the frame to specify a target wheel from which the frame is transmitted. The receiver acquires a tooth position of a gear rotating with a corresponding wheel when receiving the frame and sets a variation allowable range based on the tooth position. The receiver specifies the target wheel by determining whether the tooth position falls within the variation allowable range. The transmitter changes the transmission angle at a predetermined time interval.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: September 12, 2017
    Inventors: Masashi Mori, Nobuya Watabe, Noriaki Okada, Takatoshi Sekizawa
  • Patent number: 9757997
    Abstract: In a wheel position detecting device, a transmission angular position of a transmitter to transmit a frame from the transmitter to a receiver is changed by a predetermined angle each time the transmitter transmits the frame. A receiver acquires gear information indicating a tooth position of a gear rotating in association with a corresponding wheel, based on a detection signal of a wheel speed sensor. The receiver specifies to which wheels the transmitter is integrated, based on the tooth position of the gear at a reception timing of the frame.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: September 12, 2017
    Inventors: Masashi Mori, Nobuya Watabe, Noriaki Okada, Takatoshi Sekizawa
  • Patent number: 9739689
    Abstract: A tire cornering stiffness estimation system and method includes multiple tire-affixed sensors mounted to a supportive vehicle tire for operably measuring tire-specific parameters and generating tire-specific information relating tire pressure, temperature, wear state, tire identification and tire loading. One or more accelerometer(s) are mounted to the hub supporting the tire to generate a hub accelerometer signal. A model-based tire cornering stiffness estimator is included to generate a model-derived tire cornering stiffness estimation based upon the hub accelerometer signal adapted by the tire-specific information.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: August 22, 2017
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Patent number: 9645031
    Abstract: A transmitting device which is disposed in a tire hollow region, and which transmits tire information relating to the state of the tire, comprises: a sensor which detects, as tire information, a state of a gas which is filled in the hollow region of a tire which is surrounded by the tire and a rim; a transmitter which wirelessly transmits the tire information; and a casing which houses the sensor and the transmitter therewithin. The casing further comprises a through hole which passes through a wall of the casing, and which extends in an orthogonal direction to a sensor detection face of the sensor. The surface area of an outer side aperture part of the through hole is 0.8 mm2 or less, and the sensor detection face faces an inner side aperture part of the casing inner side of the through hole without obstructing with the space.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: May 9, 2017
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Daisuke Kanenari
  • Patent number: 9532194
    Abstract: Apparatus, methods and logic for vehicles to determine vehicle to vehicle (V2V) safety message transmission rates for transmitting V2V safety messages based on how frequently the vehicles actually need to exchange safety messages, including factors such as vehicle velocities, distances among vehicles, and on how quickly the inter-vehicle distances are closing up. The determined V2V safety message transmission rates are selectively dynamically adjusted in accordance with detected significant changes in one or more of the inter-vehicle distances or inter-vehicle speeds. To avoid needless frequent changes to the transmission rate, statistical modeling techniques including hypothesis testing and sequential change detection are selectively used to more accurately detect significant changes in inter-vehicle distances or inter-vehicle speeds that warrant a change to the message transmission rate.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: December 27, 2016
    Inventors: Tao Zhang, Helder Antunes, Chintan Patel, Mahbubul Alam
  • Patent number: 9469168
    Abstract: The invention relates to a method of identifying sensors (C1, C2, C3, C4) of an information system for a vehicle (V1) of the type that links a plurality of sensors housed in the wheels and equipped with a subassembly for transmitting the collected data to a module (100) for transmitting and receiving said collected data, which is equipped with at least one transmission/reception antenna (110), in which each axle end is fitted with twin wheels, an inner wheel and an outer wheel, each wheel accommodating an equipped sensor (Ci or Ce) of a transmission subassembly, said method being noteworthy in that it consists in varying the power of the transmission antenna (110) in such a way that the transmission field of the antenna varies and includes or excludes the sensor(s) (Ci, Ce) located within its radius of action. The invention also relates to the device for implementing the method described above. Applications: detection and transmission of parameters from vehicle tires.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: October 18, 2016
    Assignee: LDL Technology
    Inventor: Philippe Lefaure
  • Patent number: 9457627
    Abstract: A handheld interrogation device includes a controller configured to generate a power signal. The controller is also configured to determine tire pressure data based on a signal received from a tire pressure sensor. The handheld interrogation device also includes a primary coil coupled to the handheld interrogation device and configured to transmit the power signal to a sensor coil of the tire pressure sensor and to receive a data signal from the sensor coil, via inductive coupling, in response to the primary coil being within a predetermined distance of the sensor coil.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 4, 2016
    Inventors: Steven Keller, Paul L. Summers, Scott Streng, Eric Stein
  • Patent number: 9428013
    Abstract: A tire wear state estimation system includes as inputs an axle force estimation, a measured tire inflation pressure; a tire load estimation; a tire cornering stiffness estimation; and a tire identification by which a specific tire-based correlation model correlates tire inflation pressure, the tire load estimation, the tire cornering stiffness estimation, and the vehicle-based sensor axle force estimation.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 30, 2016
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Kanwar Bharat Singh
  • Patent number: 9424739
    Abstract: Apparatus for a self-powered wireless transmitter system. One such system includes an inductor, a delay circuit, and a transmitter with an antenna. The magnet interacting with the inductor generates both power and a trigger signal. The inductor generates sufficient power for the transmitter to transmit a wireless signal corresponding to when the magnet interacts with the inductor. Precise timing is insured by the inductor being connected to the trigger input of the transmitter unit and the delay circuit adding a short delay to the signal from the inductor with the delayed signal connected to the supply voltage connection of the transmitter. The transmitter transmits the wireless signal upon being energized through the delay circuit.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: August 23, 2016
    Inventor: Terry Pennisi
  • Patent number: 9350468
    Abstract: A method and a device for measuring an LF field of an LF transmitter. An LF signal is transmitted with the LF signal intensity by way of the LF transmitter. The LF signal is received by way of an LF receiver installed in a tire of a vehicle, wherein the LF receiver is located in an LF receiver position. An RF signal is transmitted in response to the reception of the LF signal. The RF signal is received by way of an RF receiver. Data representing the LF signal intensity and the LF receiver position are stored. Furthermore, there is provided a method for arranging an LF transmitter for transmitting an LF signal to an LF receiver installed in a tire of a vehicle and/or for arranging an RF receiver.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: May 24, 2016
    Assignee: Continental Automotive GmbH
    Inventor: Jürgen Bettecken
  • Patent number: 9322744
    Abstract: Provided is a tire air pressure monitoring device capable of accurately determining the wheel position of a transmitter. The tire air pressure monitoring device comprises: a transmitter installed on each wheel for transmitting detected air pressure information via a wireless signal; a rotational position detection mechanism disposed on the vehicle body side which detects the rotational position of each wheel and also outputs rotational position information to a communications line at prescribed time intervals; and a vehicle body side rotation position estimation mechanism that estimates the rotational position (i.e., number of teeth) at the time of transmission by the transmitters, on the basis of the reception information for the wireless signal from the transmitters and the rotation position information for the wheels input via the communications line.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: April 26, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takashi Shima, Kazuo Sakaguchi, Syoji Terada
  • Patent number: 9269201
    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: October 29, 2013
    Date of Patent: February 23, 2016
    Assignee: Bosch Automotive Service Solutions Inc.
    Inventor: Robert Kochie
  • Patent number: 9259977
    Abstract: Provided are a tire pressure detecting module that simply identifies a position of a tire detecting module to automatically assign the position of the tire detecting module and a tire pressure detecting system including the same. The tire pressure detecting module includes a phase angle sensor detecting a phase angle of a wheel, a pressure detecting sensor detecting a pressure and temperature of a tire, a pressure detecting control unit extracting a phase angle number matching a phase angle of the wheel that is detected by the phase angle sensor among a plurality of phase angle numbers that are given by uniformly dividing the wheel, and a pressure detecting transmission part transmitting tire information including a pressure value or temperature value detected by the pressure detecting sensor at the retransmission interval several times.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 16, 2016
    Assignee: Hyundai Autron Co., Ltd.
    Inventor: Kyung-Taek Kim
  • Patent number: 9233693
    Abstract: Provided is a tire sensing system that reduces the power consumption, size, weight, and cost, while suppressing an increase in fuel consumption of moving means. The tire sensing system is adapted to monitor state of a tire or a road surface from vibration information to perform safety control of the moving means having the tire. The tire sensing system includes a sensor disposed in a position of an inner surface of the tire where the sensor can sense the vibration, a receiver for receiving the information sent from the sensor, and a control means for controlling the moving means on the basis of the information from the receiver. The state is estimated from first vibration applied to the sensor upon contact with the road surface via the tire, second vibration applied to the sensor upon departure from the road surface, and a contact time from the contact to the departure.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: January 12, 2016
    Inventors: Yasuyuki Naito, Keiji Onishi
  • Patent number: 9183423
    Abstract: A drive over stand for a TAG reader has a lead-on ramped surface and an exit-off ramped surface aligned and operative to intercept and engage the vehicle tire as the vehicle tire traverses over the upper surface of the stand. One or more pockets are disposed within the stand base, each receiving an antenna assembly. The antenna assembly is positioned within the pocket of the base, seated at a tilt angle operative to direct a read field toward a vehicle approach path to the stand.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: November 10, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Joseph Paul Batcho, Sr., John Michael Fenkanyn, Amrita Patel, Mario Vincent Orosa
  • Patent number: 9120357
    Abstract: The present invention relates to methods, systems and devices for integration of tire pressure monitoring sensors with a tire pressure monitoring system utilizing a telecommunication device. In one exemplary embodiment, the present invention provides a method of integrating a tire pressure monitoring sensor with a tire pressure monitoring system of a vehicle. The method includes the step of establishing a communication link between a telecommunication device and a tire pressure monitoring sensor, the communication link including a low frequency transmission device. The method further includes transmitting a signal through the communication link to cause the tire pressure monitoring sensor to communicate with a tire pressure monitoring system of a vehicle.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 1, 2015
    Assignee: Continental Automotive Systems, Inc.
    Inventors: Jean Christophe Deniau, Brian J Farrell, Matthew D McIntyre
  • Patent number: 9052735
    Abstract: An active control system and method for an accelerator pedal effort is disclosed, in which the pedal effort of the accelerator pedal is varied actively in accordance with a driving mode and a parking mode of a vehicle.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 9, 2015
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Jeong Seon Min, Eun Sik Kim, Yang Rae Cho, Ho Seung Jang
  • Patent number: 9050863
    Abstract: When the difference between the first rotating period determined based on detection by the G sensor and the second rotating period Ta determined based on the detected value of the wheel velocity sensor is equal to or smaller than the prescribed value, the rotational position of each wheel corresponding to the wireless signal transmitted at the prescribed rotational position is adopted in determining the wheel position; when the difference is over the prescribed value, the rotational position of each wheel corresponding to the wireless signal transmitted at the rotational position different from the rotational position is not used in determining the wheel position.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: June 9, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Shima, Kazuo Sakaguchi, Syoji Terada
  • Publication number: 20150128691
    Abstract: A tire pressure observation method and computer readable medium is provided. Upon detection of an abnormal pressure condition, a tire pressure observation method provides for various maintenance actions. A computer readable medium may contain instructions for a tire pressure observation controller directing the controller to present messages at different stages of the maintenance actions to assist maintenance staff in properly performing the maintenance actions, for example, observing the tire pressure.
    Type: Application
    Filed: November 12, 2013
    Publication date: May 14, 2015
    Applicant: Goodrich Corporation
    Inventor: Steven Keller
  • Patent number: 9027397
    Abstract: A tire pressure sensor includes a sensor device providing a first mounting hole and a second mounting hole in different angles and adapted for detecting the pressure of a tire at a wheel rim, an air valve mountable in a through hole at the wheel rim to guide the air pressure of the tire into the sensor device for sensing, and a fastener for selectively fastening the air valve to the first mounting hole or second mounting hole of the sensor device subject to the type of the wheel rim.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: May 12, 2015
    Inventor: Hsin-Chieh Chen
  • Publication number: 20150122005
    Abstract: A first printed wiring substrate on which a detection and transceiver circuit, which detects and transmits a predetermined physical quantity of a tire, and printed wiring for an antenna are formed and a second printed wiring substrate on which printed wiring for the antenna is formed are disposed so as to oppose each other, and a planar conductor plate is provided by being fixed, so as to be positioned between an antenna and a metal face to which mounting takes place, on the second printed wiring substrate of a device main body in which the antenna is formed by conductively connecting the printed wirings for the antenna in a coil shape by a columnar connection conductor.
    Type: Application
    Filed: May 13, 2013
    Publication date: May 7, 2015
    Inventor: Koji Nakatani
  • 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: 9016118
    Abstract: A mounting structure for an electrical device includes a mounting portion and a containing portion. The mounting portion has a mounting surface and an outer surface. The containing portion has an inner surface with protrusions forming an indent, an outer surface, an insertion aperture, and a flow aperture.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventors: Gene A. Townsend, Dan J. Becker
  • Patent number: 8997561
    Abstract: An apparatus for detecting a decrease in tire pressure based on a resonance frequency of a tire installed in a vehicle includes rotation information detection means for detecting rotation information of the tire, resonance frequency estimate means for estimating the resonance frequency of the tire from the rotation information of the tire, and judgment means for judging the decrease in the tire pressure by comparison between the resonance frequency estimated by the resonance frequency estimate means and a reference frequency preliminarily determined by learning at the time of initialization. An effective speed region when the reference frequency is determined at the time of the initialization is a first speed or less. The apparatus further includes effective speed region change means for extending an upper limit of the effective speed region to a second speed which is larger than the first speed at the time of shifting.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: April 7, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Atsushi Nomura, Seigou Sakagami, Hiroaki Kawasaki
  • Patent number: 9000923
    Abstract: A drive over, reader system for a wheel-based, electric field-actuated transponder device includes a vehicle support pad surface; an antenna device on the support pad located to operatively align with a wheel-based transponder device of the vehicle with the vehicle positioned on the pad in a read location; a transmitter device and a receiver device coupled to the antenna device for generating an upwardly directed electric field to actuate the transponder device and receive a responsive signal back from the transponder device. The upwardly directed electric field operatively engages the transponder device as the vehicle drives over the antenna device. Multiple antennae may be aligned in a linear array to subject the transponder device to multiple electric fields as the vehicle traverses the support pad. The antenna device of the reader system may be configured as a layered panel positioned on the support pad or as a dipole antenna embedded within the support pad.
    Type: Grant
    Filed: July 14, 2008
    Date of Patent: April 7, 2015
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Robert Leon Benedict
  • Patent number: 8981919
    Abstract: A flow indication system for a central tire inflation system is provided. The flow indication system provides a venturi in fluid communication with the conduit providing air to a tire. A pressure reading is taken at the inlet and throat of the venturi and the air flowing through the venturi is calculated based on the pressure differential. According to some embodiments, the pressure readings are provided to a microcontroller that uses a table and interpolation algorithms to calculate the flow of the air flowing through the venturi, such as the mass of air in a given unit of time (grams/second for example). In one embodiment, two separate pressure sensors are coupled to different ends of a narrowed orifice that causes a pressure change in the flow as flow rate increases in the throat of the sensor. This pressure change is then used to calculate a proportional flow that can then be broadcast to various parties instead of an on/off reading.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: March 17, 2015
    Assignee: Stemco LP
    Inventors: Michael James Massey, Mark J. Kranz, Mark N. Gold, James C. Steph, Herman Goins, Jr.
  • Patent number: 8978458
    Abstract: A system and related method for improving tire uniformity includes identifying at least one candidate process effect and a corresponding process harmonic number for each process effect. A given uniformity parameter, such as radial or lateral run-out, balance, mass variation, radial lateral or tangential force variation, is measured for each tire in a test set, such that the measurements contain tire harmonics as well as a process harmonics corresponding to each candidate process effect. Rectangular coordinate coefficients are electronically constructed for each said process harmonic, after which point the rectangular coordinates corresponding to each process harmonic are solved for (e.g., by using regression-based analysis). The magnitude of each said process harmonic is estimated, and a final magnitude estimate for each process harmonic can be determined by summarizing (e.g., by taking the average or median value) the respectively estimated magnitudes for each process harmonic across all test tires.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: March 17, 2015
    Assignees: Michelin Recherche et Technique S.A., Compagnie Generale des Etablissements Michelin
    Inventors: William David Mawby, Jonathan Sauls
  • Patent number: 8978460
    Abstract: A method of operating a tire pressure monitoring system for a motor vehicle includes detection of a stationary state of the motor vehicle by way of a centrifugal force measured on the wheel side or a vehicle speed measured on the vehicle side, during a time period during which the vehicle speed is zero; detection and vehicle-side storage of an acceleration force in each wheel during the time period, and renewed detection of an acceleration force in each wheel at the end of the time period. The detected acceleration force in each wheel is transmitted to a vehicle-side control device and compared with earlier-stored acceleration forces associated with the respective wheel position. The tire pressure system is initialized following the stationary state of the motor vehicle in the event of a deviation in any of the wheels. There is also provided a tire pressure monitoring system and a motor vehicle.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: March 17, 2015
    Assignee: Continental Automotive GmbH
    Inventor: Matthias Kretschmann
  • Publication number: 20150059461
    Abstract: This invention is directed to a measurement sensor comprising a radio frequency identification circuit for measuring a parameter. The circuit comprises at least of one component in which a characteristic of that component can be changed to reflect a change in a measured parameter, such that the frequency of the sensor varies according to changes in the measured parameter. The invention extends to a system for measuring a variable parameter that incorporates such a sensor.
    Type: Application
    Filed: December 20, 2012
    Publication date: March 5, 2015
    Inventors: Jonathan Ingram, Ashley Duddle, Marcus Taylor
  • Patent number: 8966968
    Abstract: An external tire pressure gauge mounting structure includes a base and a cap; the base and cap are locked together to provide an internal mounting space; the mounting structure also includes a gear, a cushion ring and a locking member; the gear is fixed on the base and has teeth; a through hole is defined in the cushion ring and teeth is provided on a sidewall of the through hole; the gear is inserted into the cushion ring, and the teeth of the cushion ring and gear mesh each other; the locking member is pressed against the cushion ring and gear; the locking member, gear and base all have their threaded holes. Also disclosed is a handling tool used for above mounting structure. The invention makes improvements upon the mounting structure of the tire pressure gauge and provides a handling tool which is easy to use. As such, mounting and dismounting of the tire pressure gauge becomes convenient.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: March 3, 2015
    Assignee: Steelmate Co. Ltd.
    Inventor: Zhitao Li
  • Publication number: 20150047740
    Abstract: A wheel inflation apparatus including a wheel engagement unit that suspends a tire/wheel assembly and at least one inflation unit coupled to the robotic arm, each inflation unit being configured to inflate the tire/wheel assembly. A load measuring unit is configured to sense an amount of load being applied to the wheel/tire assembly. A controller is coupled to the load measuring unit for receiving a load signal and determining an internal air pressure of the tire/wheel assembly based on the load signal. The controller controls the at least one inflation unit based on the determined internal air pressure and a target (desired) air pressure value.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 19, 2015
    Inventors: Lawrence J. Lawson, Barry A. Clark
  • Publication number: 20150040656
    Abstract: A tire wear state estimation system includes a tire pressure measuring device affixed to a vehicle tire for measuring tire inflation pressure and generating tire inflation pressure data; tire torsional mode measuring means for measuring tire torsional mode frequency and generating tire torsional mode frequency data; and tire identification means for generating tire-specific torsional mode coefficients using tire-specific identification data. A tire wear estimation is made based upon the tire inflation pressure data, the torsional mode frequency data, and the tire identification derived torsional mode coefficients.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 12, 2015
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Kanwar Bharat Singh, Yiu Wah Luk, Anthony William Parsons
  • Patent number: 8943882
    Abstract: A tire pressure monitoring system controller is provided that comprises a rotational position calculation unit that detects a rotational position for each wheel when a wireless signal including a specific sensor ID has been transmitted; a wheel position determination unit that acquires the rotational position of each wheel a plurality of times and accumulates rotational position data for each wheel, and determines the wheel position corresponding to the rotational position data with the least degree of dispersion among all the rotation position data as the wheel position of a transmitter corresponding to the sensor ID; and a rotational position detection inhibition unit that inhibits the detection of the rotational position of each wheel by the rotational position calculation unit when braking control that controls a wheel cylinder pressure of the wheels is being executed.
    Type: Grant
    Filed: February 20, 2012
    Date of Patent: February 3, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Shima, Syoji Terada, Kazuo Sakaguchi
  • Publication number: 20150020585
    Abstract: A tire module for attachment to an inside of a pneumatic tire for vehicles includes a device for measuring and/or monitoring the air pressure in the tire. A transmitter for transmitting radio signals, which contains information regarding the air pressure in the tire, includes a mechanical-electrical transducer having a flexible piezo-electrical element, which converts alternating changes in shape of the piezo-electric element caused by the rolling tire into electric energy and includes a storage unit for the electric energy, which is connected to the transducer. The transducer may contain a circular, disc-like, piezo-electric element, which in the following is described as piezo disc and on which an electrical voltage generated through the piezo effect is tapped off on contact points which are located on opposite sides of the piezo disc.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Inventors: Axel Dussinger, Ralf Kessler, Ingemar Wolf, Andre Seifert, Benjamin Mueller