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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Abstract: A re-usable tire monitor assembly for detecting wear of the tire includes a band that is selectively coupled to the tire on a vehicle. A processor is coupled to the band. A first sensor is coupled to the band. The first processor is operationally coupled to the processor so the first sensor monitors wear of the tire. A second sensor is coupled to the band. The second sensor is operationally coupled to the processor so the second sensor monitors wear of the tire. A first transceiver is operationally coupled to the band. The first transceiver is operationally coupled to the processor. A remote unit may be carried by a user. A second transceiver is coupled to the remote unit. The second transceiver is operationally coupled to the first transceiver so the first transceiver communicates information about the tire to the second transceiver.

Abstract: A tire internal pressure measuring system includes a detector for detecting the internal pressure of a tire, and an acquisition device for acquiring data relating to the internal pressure of the tire detected by the detector. An antenna unit of the acquisition device generates induced electromotive force in an antenna unit of the detector by electromagnetic induction, and acquires a resonant waveform in tune with the resonance of an LC resonance circuit configured from a capacitance sensor charged with the electromotive force generated in the antenna unit and the antenna unit. The acquired resonant waveform is frequency-divided, and a capacitor (C) is charged during a period from the rising edge to the falling edge of the waveform obtained by the frequency dividing. The value of charged voltage is associated with the tire internal pressure.

Abstract: A monitoring device for tyres for vehicle wheels includes: an electronic unit; a connecting member configured for constraining the electronic unit to a tyre, the connecting member being of one piece construction and including: a first and a second base portion, mutually separated by a separation region, each of the base portions having a respective base surface associable with an inner surface of a tyre; and a housing portion in cooperation with the base portions defining a cavity for the electronic unit. The connecting member is deformable between an insertion condition of the electronic unit into the cavity and a retaining condition of the electronic unit in the cavity. The connecting member in the insertion condition is configured for enabling insertion of the electronic unit in the cavity when the base portions are not fastened to the inner surface of the tyre.

Abstract: A monitoring device for tyres for vehicle wheels includes: an electronic unit; a connecting member configured for constraining the electronic unit to a tyre, the connecting member including: a first and a second base portion, mutually separated by a separated region, each of the base portions having a respective base surface associable with an inner surface of a tyre; a housing portion associated with the base portions defining, in cooperation with said base portions, a cavity for housing the electronic unit, wherein the housing portion includes at least one side structure, configured for exerting a containing action at least relative to movements of the electronic unit carried out in a major extension direction of the separation region and with respect to movements of said electronic unit carried out in a direction orthogonal to the major extension direction of the separation region wherein the cavity is confined at least by a side surface defined by an inner surface of the side structure, wherein the electr

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.

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).

Abstract: A method and system for managing tire pressure in a vehicle are disclosed. The system is a tire pressure monitoring system associated with the tire pressure sensors. The method includes the general steps of informing the operator that air pressure in a tire is below a desired level, causing the sensor to undertake a rapid sampling of pressure of the tire during an interim state while the vehicle is being driven, advising the operator to manually add pressure to the tire in discrete increments of, for example, between 5 and 10 seconds, causing the sensor to undertake a rapid sampling of tire pressure while air is being manually added to the tire, and causing the sensor to transmit tire air pressure data until the operator stops adding air. The method may also include the step of providing the operator with feedback when a predetermined tire air pressure is reached.

Abstract: An insert apparatus for installing a transducer assembly in a sensor port of a flow cell is disclosed. The transducer assembly is installed in the cavity of the insert body without the use of glues or adhesives to bond the transducer assembly to the cavity.

Abstract: A dynamic load estimation system is provided including: a vehicle load bearing tire; at least one tire sensor mounted to the tire, the sensor operable to measure a tire deformation of the one tire and generate a raw load-indicating signal conveying measured deformation data; road roughness estimation means for determining a road roughness estimation; filtering means for filtering the measured deformation data by the road roughness estimation; and load estimation means for estimating an estimated load on the one tire from filtered measured deformation data. A road profile estimate is fused with the static load estimate in order to obtain an instantaneous tire load estimate.

Abstract: In a wheel position identifying device for a vehicle, transmitters are disposed in wheels, respectively. Each of the transmitters has a dual axis acceleration sensor and a control unit. The dual axis acceleration sensor detects a normal-direction acceleration and a tangential-direction acceleration of the wheel associated with the transmitter. The control unit determines whether the wheel associated with the transmitter is a right wheel or a left wheel based on a sign of a product of a time differential value of the normal-direction acceleration and the tangential-direction acceleration, and stores data regarding a determination result in a frame. A receiver receives the frame from each transmitter and identifies a position of the transmitter based on the data stored in the frame. The wheel position identifying device is for example employed to a tire pressure detecting apparatus.

Abstract: A transmission device of a tire condition monitoring system comprises a sensor which detects, as tire information, the condition of gas filled into a tire cavity region, a transmitter which transmits the detected tire information by radio, and a housing which covers the sensor and the transmitter. A surface of the housing defines an opening that connects an internal space within the housing and the tire cavity region. The opening extends on the surface of the housing while forming the shape of a straight line, a curved line, or a combination of a straight line and a curved line. The maximum value of the opening width orthogonal to the direction in which the opening extends is 0.8 mm or less. Even if a flat tire is fixed using a puncture sealant, tire information such as tire pressure information can be appropriately measured and acquired by this transmission device.

Abstract: A valve device having a valve body (1, 1?) releasably connected by a retaining unit (4, 4?) to a housing (3, 3?) designed for receiving electronic tire pressure measuring device, so that the retaining unit fixes the valve body in a relative position to the housing in a locked state, and the valve body can be displaced in an axial extension direction relative to the housing and released from the same in an unlocked state. The retaining unit is provided on or in the housing, so that it engages laterally in a jacket-side locking segment of the valve body for producing the locked state, and are designed so that the retaining unit is secured or locked on or in the housing in the locked state.

Abstract: A tire pressure monitoring apparatus (10) includes a pressure transducer (14) and a valve stem (12). A support bracket (50) connects the valve stem (12) to the pressure transducer (14) and facilitates pivotal movement between the valve stem and the pressure transducer. The support bracket (50) includes a valve stem biasing member (80) that exerts a spring bias on the valve stem (12) to help maintain a selected angular position of the valve stem relative to the pressure transducer (14).

Abstract: A tire information obtaining device provided in a tire cavity region for obtaining tire information related to a condition of a tire includes: a sensor that detects the state of gas in the tire cavity region as the tire information; a valve; and a housing having an internal space for containing the sensor in a state of being compartmentalized from the tire cavity region, a ventilation hole for allowing communication between the internal space and the tire cavity region, and a communication hole connected to a cavity region side opening part of the valve at an end portion on the tire cavity region side and allowing communication between the cavity region side opening part and the tire cavity region.

Abstract: Allocates identifiers of units of a tire pressure monitoring system to the positions of ABS-sensors which are each assigned to the wheels of the vehicle. The identifiers are contained in signals that are emitted by the units. Each unit, which is called a wheel electronic, has a pressure sensor, which is sensitive to the tire pressure of the wheel, a motion sensor, which provides information on the rotation speed of the wheel, a memory with the individual identifier of the wheel stored therein, and a transmitter, which transmits signals only containing information on the rotation speed of the respective wheel, to a receiver. An evaluation device receives the transmitted identifier and compares the information on the rotation speed of the wheel transmitted along with the identifier, with rotation speed information, which were acquired by the ABS sensors for the same time span and transferred to the evaluation device.

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.

Abstract: The invention relates to an electronic unit adapted to be positioned on the inner face of a tire tread and incorporating a pressure sensor (10) having a chamber (11) for measuring the pressure inside the tire. This electronic unit includes, in the first place, a housing (6) having a bottom wall (6a) and a side wall (6b) delimiting an open face opposite the bottom wall, the housing being adapted to rest on the tire via its bottom wall (6a) and to house the pressure sensor (10) so that the measuring chamber (11) of the latter opens opposite the open face of the housing (6). Moreover, the electronic unit includes a lid (7) for closing off the open face of the housing (6) pierced with at least one air-inlet opening (18) arranged so as to be offset relative to the measuring chamber (11) of the pressure sensor (10).

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.

Abstract: The invention relates to a technical inspection method which comprises the specific application of an ultrasound wave perfectly adapted for interacting with the rubber and for detecting: defects, tears, gaps, the state of wear of the rubber, and the breakage of steel wires or meshes in giant OTR (off-the-road) tires. Said inspection consists of injecting, into any sector of the tire and using an ultrasound defect detector device, ultrasound waves that generate echoes by bouncing off breaks or interfaces in the material, the assessment of which yields a diagnosis of the internal condition and operating state of the tire.

Abstract: A tire defect tester and a method of operation are disclosed. In one aspect, the tire defect tester includes a first electrode arranged to direct energy toward a tire, and a second electrode arranged on an opposite side of the tire from the first electrode to receive energy passing through the tire from the first electrode. The tire defect tester further includes an energy sensor electrically connected to the second electrode and a fault indicator circuit responsive to the energy sensor and configured to indicate the presence of a flaw upon energy above a threshold level being sensed at the second electrode.

Abstract: A method of detecting a decrease in tire air pressure includes calculating tire rotation information obtained from the wheel tires; computing a first determination value showing a difference between the sums of the wheel rotation information of pairs of wheel tires on two diagonal lines and a second determination value showing a difference between the sum of the wheel rotation information of right wheel tires and the sum of the wheel rotation information of left wheel tires; assuming the computed first and second determination values as points on orthogonal coordinates; determining position of tire(s) having a decreased pressure based on the argument of the points on the polar coordinates; and comparing the moving radii of the points on the polar coordinates with a predetermined threshold value to thereby determine a decrease in tire air pressure.

Abstract: A system detects deflated tires based on a resonance frequency of tires with a vehicle and a relative comparison value of rotation speeds of the tires. The system includes: a rotation information detection means for detecting rotation information of the tires; a rotation speed calculation means for calculating rotation speeds of the tires; a resonance frequency assumption means for assuming a resonance frequency of the tires; and a determination means for detection of deflated tires using a decreased pressure determination index calculated by a relative comparison of the rotation speeds of the tires and the resonance frequency. The determination means is so configured as to reduce the second threshold to be compared with the decreased pressure determination index to a value equal to or higher than 1% and equal to or lower than 90% and to detect deflated tires when the decreased pressure determination index exceeds the reduced threshold.

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.

Abstract: A tire pressure monitoring sensor moveable inside a tire includes a housing holding a pressure sensing/transmitting unit, one or more batteries and an antenna for transmitting a signal indicating interior tire pressure. In one embodiment, the components are assembled within the housing such that the center of gravity is along a housing geometric center. During tire rotation, the monitor independently rotates within the tire and is particularly useful for slow-rotating tires, such as those used in gantry systems. Alternatively, the pressure monitoring sensor components are assembled within the housing such that the center of gravity is offset from a housing geometric center. Centripetal force generated during tire rotation causes the monitor to rotate with the tire itself and is useful for faster-rotating tires, such as motor vehicle tires. A tire pressure monitoring system includes the monitor and a receiver positioned outside the tire for receiving the monitoring signals.

Abstract: Position detection apparatuses of TPMS sensors and a method thereof are provided. One aspect of the invention provides a position detection apparatus for tire pressure monitoring system (TPMS) sensors mounted on each wheel of a vehicle. The apparatus includes: a receiver programmed to receive TPMS signals from each TPMS sensor; and a controller programmed to (i) sequentially arrest rotation of each wheel of the vehicle and (ii) detect a position of each TPMS sensor by associating a TPMS signal that is not received at the time of arresting a specific wheel with a position of the specific wheel that is arrested at that time.

Abstract: A tire pressure monitoring unit includes a measurement and transmission electronics unit for measuring and wirelessly transmitting pressure information. A power source supplies power to the measurement and transmission electronics unit. A plastic body embeds the measurement and transmission electronics unit and also the power source. A metal carrier sheet, which carries the measurement and transmission electronics unit and also the power source, protrudes out from the plastic body with a fastening portion, which has a fastening hole. A method for producing a tire pressure monitoring unit is also disclosed.

Abstract: The tire condition of each tire of a vehicle is detected, which information is transmitted by means of electromagnetic waves from the tire condition acquisition devices to a monitoring device that receives the electromagnetic waves transmitted from tire condition acquisition devices via a receiving antenna, which monitoring device contains means for displaying the electric field intensity of the electromagnetic waves transmitted from the tire condition acquisition devices. Thus, the electric field intensity at a mounting position can easily be determined when mounting the receiving antenna, enabling easy discovery of the optimal location for mounting the receiving antenna.

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.