Abstract: The present invention provides a tire state variables management system where an external module can reliably receive data from a specific sensor module from which data is to be acquired when an external module transmits to the sensor module a command signal for requesting data transmission. Each sensor module 3 possesses a self-identifying code for distinguishing itself from other sensor modules; the command signal transmitted by the external module 2 includes the self-identifying code possessed by the sensor module 3 from which data is to be acquired; and the sensor module 3 is adapted to transmit the data only when the self-identifying code included in the command signal from the external module 2 coincides with the self-identifying code possessed by itself.

Abstract: A method and a device for locating tires mounted on a vehicle. High frequency signals are captured by way of a first transmit/receive device arranged on a vehicle, said high-frequency signals originating from a wheel electronic system arranged on the vehicle, said wheel electronic system interacting with tires of a first tire group that are mounted on the vehicle. A trigger signal having a frequency that is clearly lower than the frequency of the high frequency signal, is emitted by the first transmit/receive device.

Abstract: A vehicle system that can overcome at least some of the aforementioned shortcomings includes tire sensors mounted in, on or adjacent respective tires of the vehicle, LF antennas including a door-mounted antenna on a door of the vehicle, a receiver mounted on the vehicle, a door switch associated with the door having the door-mounted antenna mounted thereto, and an ECU in communication with the antennas, the receiver and the door switch. Each tire sensor is configured to transmit a signal and to detect an LF field. Each LF antenna is configured to transmit an LF tire sensor wake up field to wake up respective tire sensors. The receiver is configured to receive signals transmitted from the tire sensors. The door switch is configured for determining whether the door is open. The ECU is configured to receive identification signals from the respective tire sensors via the RF receiver.

Abstract: Systems and methods for auto-location of tire pressure monitoring sensor units on a vehicle measure the angle of a wheel at two different times using a rim mounted or a tire mounted sensor and determines a difference in measured angles. The systems and methods provide for transmitting the angles and/or the difference in the measured angles along with a sensor identification to an electronic control module. Alternatively, the systems and methods provide for transmitting time differences to the electronic control module. The electronic control module correlates information transmitted from the wheel unit with antilock brake system data. A location of the wheel mounting the sensor is determined and the sensor identification is assigned.

Abstract: Auto-location systems and methods of tire pressure monitoring sensor units arranged with a wheel of a vehicle detect a predetermined time (T1) when a wheel phase angle reaches angle of interest using a rim mounted or a tire mounted sensor. The systems and methods transmit a radio frequency message associated with a wheel phase angle indication. The wheel phase angle indication triggers wheel phase and/or speed data such as ABS data at the predetermined time (T1) to be stored. A correlation algorithm is executed to identify the specific location of a wheel based on the wheel phase and/or speed data at the predetermined time (T1). TPM sensor parameters from a tire pressure monitoring sensor unit are assigned to the specific location of the wheel.

Abstract: A monitoring device (20) of a vehicle wheel (11) is configured for detecting and transmitting, by a wireless connection, information relating to at least one characteristic quantity of the status of the wheel (11), such as the inflating pressure of a tyre thereof. The device (20) has a casing (21-22) housing a circuit (30) adapted to transmit said information, the casing (21-22) being designed for coupling to an end portion (3a) of electrically conductive body (3) of a tyre valve (2) of the wheel (11). The casing (21-22) includes a casing body (21) integrating interconnection means (28, 29, 40) prearranged to obtain both an electric connection of the circuit (30) to the end portion (3a) of the electrically conductive body (3) of the valve (2; 2; 2?), and a mechanical coupling of the casing (21-22) to the end portion (3a) of the electrically conductive body (3) of the valve (2; 2?; 2?).

Abstract: A tire information monitoring system includes a transmission device, a receiving device, and a monitoring section. The transmission device includes a sensor which detects tire information, a transmitter which wirelessly transmits the detected tire information and a housing. The housing includes a wall surrounding the sensor and the transmitter, an inner space divided from the tire cavity area by the wall, and an air vent passing through the housing and connecting the inner space and the tire cavity area. An outer opening portion of the air vent formed on a surface of the housing facing the tire cavity area has an opening area of 0.4 mm2 or smaller. An inner opening portion of the air vent formed on a surface of the housing facing the inner space has an opening area larger than that of the outer opening portion.

Abstract: A system and method for detecting a rotation of the vehicle tires between different wheel locations. The method carried out by the system involves obtaining and storing TPM sensor identification numbers and their corresponding tire locations. Next, the system checks the sensors periodically to determine if any of the sensors have changed tire location. Based on that change, the system determines if a tire rotation has occurred; for example, by matching changes in sensor positions with known tire rotation patterns. This approach allows the system to detect and record a tire rotation, as well as to take some automated action, such as subsequently notifying the vehicle owner when the next scheduled tire rotation is due.

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.

Abstract: A pressure detection unit includes a front-wheel transmitter and a rear-wheel transmitter operatively connected to wheel rims of a front wheel and a rear wheel, respectively. Inflation pressure signals transmitted from the front-wheel transmitter and the rear-wheel transmitter are received by a receiver. The receiver is arranged to be offset outward of a straight line connecting the front-wheel transmitter and the rear-wheel transmitter in the vehicle-body width direction. More specifically, the receiver is arranged in a space surrounded by a front cowl and a side panel, the space being between a coolant reserve tank and a radiator. The single receiver receives the signals transmitted from the front-wheel transmitter and the rear-wheel transmitter.

Abstract: The invention relates to a method of positioning sensors on wheels (200 and 300) installed coaxial to the same end of one and the same axle of a vehicle (C) comprising a receiving module (100) associated with the body of the vehicle, noteworthy in that it consists in positioning the sensors (210 and 310) at an angular interval greater than or equal to ninety (90) degrees of a wheel (200) relative to the other (300) so that, when operating in displacement mode, the distance between the receiving module and the sensor varies according to the wheel rotation, and in using a link of low frequency (LF) type so that the creation of a distance between the points of emission makes it possible to vary the power of the signals received, thus rendering them distinct. The invention also relates to a device making it possible to implement the method described hereinabove. Applications: measurement and transmission of data associated with the wheels of a vehicle.

Abstract: Method for allocating identification codes which are contained in signals transmitted by components of a tire pressure monitoring system, said components being attached to wheels of the vehicle, to the wheel positions. A plurality of sensors to the tire pressure, to the rolling direction of the wheel, to the shocks, as well as a memory for the identification code, and a transmitter which supplies signals with the identification code, the rolling direction and the occurrence of a shock on a wheel to a receiver which, based on the supplied rolling direction information, distinguishes identification codes pertaining to wheels on the left-hand or right-hand side of the vehicle from shocks which occur on the left-hand or right-hand side of the vehicle, measures the time interval elapsing between shock signals on one side of the vehicle, multiplies this time interval by the velocity of the vehicle measured within the same time interval.

Abstract: A wheel electronic system and a method for operating a wheel electronic system. The wheel electronic system interacts with a tire secured to a vehicle and produces and emits, based on a captured trigger signal, a message containing information on at least one tire parameter measured with the wheel electronic system. The wheel electronic system is operated in an operational mode in which the system is configured to periodically capture the trigger signals in a first time period. Based on a predetermined first operational ratio of the vehicle, the wheel electronic system automatically switches to a test mode, in which the wheel electronic system is configured to periodically capture the trigger signals in a second time period which is substantially shorter than the first time period.

Abstract: A system and method are provided for reliable, wireless group alerting in a system having a database, switch, wireless network, and a plurality of intelligent mobile receivers, and preferably employing a modified two-way paging based on ReFLEX™ protocol information service (IS) messages and a novel ALOHA command for multicast acknowledgement from mobile receivers. An encrypted message is broadcast to a group address and received by a selected number of the mobile receivers. The network replies to the sender with detailed information about the individual members in the alert group. Each of the mobile receivers in the group then acknowledges the common message back to the system, decrypts the message, displays it to the user, and allows the user to respond. The system employs centralized management to simplify the roles of the mobile users and administrators, minimizing configuration and operational human errors that would otherwise result in confusion or lost messages.

Abstract: A system and method for detecting a missing vehicle tire and notifying a user of the vehicle about a potential vehicle tire theft. The method carried out by the system involves detecting that a tire is missing from a vehicle using a vehicle tire pressure monitoring (TPM) system and thereafter providing a notification of the missing tire via a wireless communication sent from a telematics unit on the vehicle. The wireless communication can be sent automatically by the telematics unit in response to the detection. Identification numbers or other data reported by sensors used in the TPM system can be used to determine if a tire is missing.

Abstract: In a tire sensor monitoring system for a motor vehicle, each of a plurality of tire sensors periodically emits an identifying signal and a parameter signal and the monitoring system receives and processes the identifying and parameter signals.

Abstract: An apparatus (10) determines a tire condition and location on a vehicle (12) including a tire-based sensing unit (14), a plurality of tires (54) on the vehicle having an associated tire-based sensing unit, each tire-based sensing unit (14) including, a first tire rotation sensor (66) mounted for rotation with the tire (54) and for providing a first tire rotation signal (80) each time the tire passes one of at least two predetermined rotational positions during tire rotation, a tire condition sensor (82) for sensing a tire condition and for providing a tire condition signal indicative thereof and an unique tire identification indicator, a transmitter (86) for transmitting the tire condition signal and the unique tire identification indicator, and a controller for controlling the transmitter so that the transmission of the tire condition signal and the unique tire identification indicator occurs when the first tire rotation signal indicates the tire has reached one of the at least two predetermined rotational p

Abstract: A device and a method for distinguishing positions of two tire sensors of a double tire include an LF antenna attached to a vehicle and connected to a central processing unit and one tire sensor each per tire. The tire sensors have a device for measuring field strength of a signal emitted by the LF antenna and the tire sensors report back information on the measured field strength through the LF antenna to the central processing unit. The central processing unit determines the position of the two tire sensors of the double tire from a distribution or course of a current flow during wheel rotation.

Abstract: A system includes a first detector, second detector and processor section. The first detector is provided to a first wheel in a first position in a vehicle. The second detector is provided to a second wheel in a second position in the vehicle. The vehicle includes a brake system configured to brake the first wheel in response to a signal designating the first position. The first detector is assigned with a first identifier and the second detector is assigned with a second identifier. The first detector is configured to output the first identifier to the processor section, in response to a change in rotation of the first wheel. The second detector is configured to output the second identifier to the processor section, in response to a change in rotation of the second wheel.

Abstract: A transceiver includes a receiver, a signal strength determiner, and a controller. The receiver receives a trigger signal transmitted by a triggering device; the trigger signal indicates both a signal strength range and a command. The signal strength determiner determines the strength of the trigger signal received by the receiver. The controller is configured to: 1) determine whether the strength of the trigger signal determined by the signal strength determiner is within the signal strength range indicated by the trigger signal; 2) and perform a task in accordance with the command indicated by the trigger signal only when the strength of the trigger signal is within the signal strength range.

Abstract: A tire pressure warning device having a detection circuit is mounted to an inflation valve on every tire of a car to implement tire pressure detection. First, a microprocessing controller in the detection circuit sends a tire location ID assigned to every tire to a signal receiving circuit provided in a dashboard of the car. Then, the microprocessing controller detects a tire pressure value of the corresponding tire and uses the detected tire pressure value as a standard pressure point for the tire. Thereafter, the microprocessing controller keeps detecting the tire pressure value of the tire. When a detected new tire pressure value is higher or lower than the standard pressure point by a preset percentage, a wireless RF is transmitted to the signal receiving circuit for the latter to identify the tire with high or low tire pressure and emit an alarm while displaying the tire pressure value.

Abstract: An elastic member 11 positioned between an inner surface of a casing 2 and a front face of a pressure sensing portion 8 of a pressure sensor 1 reduces a possibility of liquid and foreign matters in a tire directly reaching the pressure sensing portion 8. The elastic member also increases adhesiveness between the pressure sensing portion 8 of the pressure sensor 1 and a labyrinth structure and further prevents a potting agent 9b from flowing into the sensing portion 8. Moreover, the elastic member 11 is a member constituting at least a part of the labyrinth structure, so that it does not need that a wall is provided on the pressure sensor 1 and a dedicated seal member is provided on the pressure sensing portion 8.

Abstract: A tire pressure detecting apparatus has a micro-controller, a detecting module and a transceiver. The detecting module is electronically connected to the micro-controller and has a tire pressure detecting unit controlled by the micro-controller to detect a tire pressure inside a tire. The transceiver is electronically connected to the micro-controller, transmits a high frequency signal corresponding to detected characteristic tire parameters from the detecting module to a monitoring system inside a car and receives an external high frequency signal sent from external tire pressure detecting apparatus for the micro-controller, with the micro-controller temporarily delaying sending of the high frequency signal until a waiting time has expired to prevent signal collision between the high frequency signal and the external high frequency signal.

Abstract: A wheel monitoring apparatus includes a measuring and evaluation unit designed to be fastened to the wheel in the region of at least one wheel nut or bolt of the wheel. The wheel monitoring apparatus includes at least one sensor for detecting a characteristic variable for a state of a wheel bearing and at least one sensor for detecting a tire pressure of a tire of the wheel.

Abstract: This invention provides a tire monitoring system, comprising a remote tire monitoring unit installed in the tire, a central controller, a speech indicating unit and a brake deceleration mechanism; wherein the remote tire monitoring unit is used to monitor and sample the pressure and temperature within the tire, and generate the sampling data signals of tire conditions which are subsequently wirelessly transmitted to the central controller; the central controller wirelessly receives sampling data signals of tire conditions, and calculates received data signals so as to generate speech indicating command and/or brake deceleration command, and afterward conveys the speech indicating command to the speech indicating unit, while the brake deceleration command to the brake deceleration mechanism; a speech indication unit, provided to receive said speech indication command and output the speech indication information; and a brake deceleration mechanism, provided to receive said brake deceleration command and perform

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: The invention provides a tire pressure monitoring-car security integrated system for realizing car security and tire pressure monitoring and method thereof In the system, a conventional tire pressure monitoring system and car security system are integrated with each other. The learning machine or signal match device of the &Inner is also combined with the remote control portion of the latter. The central monitor portion of the former is combined with the car security host machine of the latter. Control logic and electrical construction thereof is also optimized. Therefore, the invention is reasonable in its design and low cost. In addition, use convenience is also improved and great commercial success may be realized.

Abstract: A spare tire monitor that connects directly over the valve stem in order to provide a driver with a means of being notified when the spare tire experiences a significant loss of air. The spare tire monitor relates to a conduit that attaches a first connection to either the internal electrical system of a vehicle or a gauge mounted at the dashboard while a second connection on the opposite end of the vehicle covers the valve stem of a spare tire such that an alert will occur when air pressure falls below a certain desired threshold.

Abstract: A device is described for detecting and wirelessly transmitting at least one measurement signal of the state of a vehicle tire of a vehicle (e.g.

Abstract: A method is presented for identifying a first wheel on a vehicle, the vehicle including a wireless receiver. The method comprising receiving a plurality of wheel identifiers at the wireless receiver and selecting one of the plurality of wheel identifiers that corresponds to the first wheel based on the number of times that the selected one of the plurality of wheel identifiers is received at the wireless receiver.

Abstract: Measuring unit with at least a pressure sensor and signal transmission means, intended to be fitted on a tire/wheel assembly, characterized in that it comprises a logic indicator with two states, active and inactive, and in that the logic indicator becomes active each time the pressure measured by the pressure sensor is below a given threshold, close to zero.

Abstract: A tire pressure monitor provided on a wheel of a vehicle includes a pressure sensor, a transmitter, an acceleration sensor, and a controller. The pressure sensor works to output a pressure signal representative of the inflation pressure of a tire fitted on the wheel. The transmitter works to transmit the pressure signal. The acceleration sensor works to output an acceleration signal representative of a centrifugal acceleration which increases with the running speed of the vehicle. The controller is configured to: 1) determine a change in the centrifugal acceleration for a predetermined time period based on the acceleration signal, 2) determine the vehicle as being in running state when the determined change is greater than or equal to a predetermined threshold, and 3) control the transmitter to transmit the pressure signal when the vehicle is determined as being in running state.

Abstract: A method of locating the positions of wheels (2) of a vehicle (1) each fitted with an electronic module (3), whereby, in order to locate a wheel (2) on the one hand, the vehicle (1) is equipped with an electromagnetic emission source consisting of at least two emitting antennas (5, 6) positioned close to the wheel (2) and physically offset so that the emitting antennas present separate shadow areas along the trajectory of the electronic module (3) of the wheel and, on the other hand, a sequential switching of the emitting antennas (5, 6) is ordered.

Abstract: A method for detecting a pressure loss of a tire in a vehicle equipped with a tire pressure monitoring system. The method includes the following steps carried out in the parked state of the vehicle: deactivate the tire pressure monitoring system, which contains at least one electronic wheel device disposed in a vehicle wheel, activate the tire pressure monitoring system after a first defined period of time or upon a vehicle-side request, determine tire-related information of the vehicle wheels associated with the electronic wheel devices by the respective electronic wheel device and generate status signals containing the tire-related information, communicate the status signals to an evaluation device, return to the first method step at the latest after a second period of time.

Abstract: A wireless transceiver includes: (a) a low power radio frequency (LPRF) communications component capable of powering down to conserve energy and capable of powering up in response to an electronic signal, the LPRF communications component including a transmitter and a first receiver; and (b) a second receiver that is configured to screen a radio frequency broadcast and provide, on the basis of specific data identified therein, the electronic signal to the LPRF communications component in order to power up the LPRF communications component. The second receiver is adapted to draw less current than the LPRF communications component while awaiting receipt of and listening for a radio frequency broadcast.

Abstract: A navigation apparatus including a central processing unit, an imaging module, a GPS module, a tire pressure monitoring module, and a storage module is provided. The imaging module captures an image signal. The central processing unit controls the imaging module to capture the image signal for generating image data, and further stores the image data in the storage module. The central processing unit executes the electronic map software stored in the storage module and receives the positional data generated by the GPS module for generating route guidance. The central unit receives the digital tire pressure signal received by the tire pressure monitoring module to generate tire pressure data and further identifies whether or not the tire pressure data is in compliance with a safety value.

Abstract: A tire monitoring system in or for a vehicle for determining tire-specific parameters has a distributed bus architecture. At least one intelligent receiving device is configured to receive transmit signals of a wheel electronic system. The receiving device has a signal processing device that carries out an evaluation of the received transmit signals and/or an evaluation of received signals of another subscriber of the bus architecture. The invention also relates to methods for operating the intelligent receiving devices of a distributed bus architecture of the novel tire monitoring or tire pressure system.

Abstract: Allocating first transmitters of a tire monitoring system, especially of a tire-pressure monitoring system having a wheel unit comprising a sensor, a first transmitter, which can be triggered, and a sending antenna on each of N wheels arranged on L axles of a vehicle according to a predetermined axle formula, further having receiving antenna on the vehicle body associated to the first transmitters and an electronic receiver and evaluation system, connected to receiving antenna by allocating an identifier characteristic of a particular wheel to its respective first transmitter, by emitting data telegrams, which contain the identifier, in response to a triggering action of second transmitters, and passing on such data telegrams to the central electronic receiver and evaluation system. The number n of the trigger transmitters is smaller than the number A of the axle positions, that each axle position is associated to a triggering range of n trigger transmitters.

Abstract: A tire pressure detecting apparatus has an identification rewriteable tire pressure detector and a setting apparatus. The tire pressure detector is securely mounted on a valve stem inside a tire of a vehicle and has a micro-processing module, a sensing module, a transmitting module and a receiving interface, where the micro-processing module has a memory unit. The setting apparatus is capable of reading or inputting an identification from a failure tire pressure detector, transmits the identification to the identification rewriteable tire pressure detector and writes the identification into the memory unit.

Abstract: A tire monitor device for a vehicle has a first antenna and a second antenna, a sensor unit attached to each of a front left tire, a front right tire, a back left tire, and a back right tire, and a determining unit. The tire monitor device is operable to transmit a response request signal from the first and second antennas with respect to at least one of the sensor units, and to monitor information of at least one of the tires based on a response signal returned from the at least one sensor unit in response to the response request signal. The first antenna is arranged at a position shifted by a predetermined amount in a left or right direction from an intermediate position between the front left and the front right tires. The second antenna is arranged at a position shifted by a predetermined amount in a left or right direction from an intermediate position between the back left and the back right tires.

Abstract: There is provided a vehicle abnormality detection method detecting an abnormal state in which a high temperature occurs due to maladjustment of a vehicle bearing mechanism section or vehicle brake mechanism section, and a device thereof and a sensor unit thereof. By use of the sensor unit 100 mounted in a rim 31, an air temperature within a tire 2 is sensed as a first temperature and a temperature (second temperature) of the rim 31 is sensed as a temperature related to at least one of a temperature of the vehicle bearing mechanism section and a temperature of the vehicle brake mechanism section 40. Then a temperature difference between the first and second temperatures is calculated and when the temperature difference is a predetermined value or more, it is determined that an abnormality has occurred in the vehicle bearing mechanism section or vehicle brake mechanism section 40. The abnormality is thus detected.

Abstract: An apparatus for monitoring a vehicle condition comprises a sensor for sensing the vehicle condition and a transmitter for transmitting signals indicative of the sensed vehicle condition. The transmitted signals include a first signal set and a second signal set. A receiver mountable on the vehicle is provided for receiving the transmitted signals. The receiver has a first operating state when the vehicle ignition is OFF and a second operating state when the vehicle ignition is ON. The first signal set includes a wake-up portion to wake up the receiver when the receiver is in its first operating state and an information portion. The second signal set includes an information portion. The transmitted signals include at least one first signal set and at least one second signal set during a predetermined time period when the vehicle ignition is OFF and when the vehicle ignition is ON.

Abstract: An RFID device having sensor arrays incorporated in its tags. Each tag generates an ID code together with sensing pulses the width of which changes with sensing values. Conflicts between tags in communication are avoided by adding a sleep section to the code sequence. The interrogator reads the ID code and digitizes the width of sensing pulses during the communication with tags, and then calculates sensing values based on the information obtained. Since only discrete signals exist in data acquisition, and the digitization process is in parallel with data communication, the system needs neither ADC circuits nor an extra process for signal digitization.

Abstract: A radio frequency identification device having sensing elements incorporated in the clock generators of its tags, which generate a leading code and an identification code. In the interrogator, the leading code is detected and its pulse width is measured for calculating sensing values and the baud rate in receiving the identification code. No analog to digital converter is needed in digitizing sensing values and only discrete signals exist in sensing signal generation and communication. The tag device is insensitive to variations in its power supply voltage obtained from a continuous wave RF carrier.

Abstract: A radio frequency identification device having sensing elements incorporated in its tags, and the sensing value determines the width of a sensing pulse in its RFID code. Through a pulse-processing unit, during communication, digital sensing values are obtained by measuring the width of the sensing pulse. Since only discrete signals exist, the tag device is insensitive to the fluctuation in its power supply voltage, which is derived from a continuous wave RF carrier.

Abstract: A tire monitoring system and associated method is disclosed. The tire monitoring system includes a plurality of tire sensor modules, employing contactless sensors, configured to transmit tire data at a predetermined time interval. The system also includes a central control unit that is configured to receive the tire data from the tire sensor modules, and is further configured with an external control unit that can communicate with the tire sensor modules, the central control units and outside sources.

Abstract: A test fixture and electronic tag assembly includes an electronic tag comprising an electronic device and a half wave dipole antenna of antenna length L. The antenna is configured as first and second coiled dipole antenna segments connecting with and extending in opposite directions from the electronic device. The assembly further includes a support frame; first and second electrically conductive pads positioned in spaced apart relationship within the support frame; and apparatus for fixedly holding end segments of the first and second coiled dipole antenna segments respectively against the first and second conductive pads in an overlapping relationship.

Abstract: Fastened to a tire is a detecting device consisting of a detecting unit including an antenna operatively connected to a sensor unit and a power supply unit including a piezoelectric element mounted in a housing. The piezoelectric element is disposed within the housing so as to have a first end substantially fixed to the housing and a second end associated with a loading mass, a gap being formed between at least one inner wall of the housing and an outer surface of the loading mass. The piezoelectric element is positioned substantially along a plane orthogonal to a radial direction of the tire. An anchoring body has a base portion with a fastening surface secured to the radially internal surface of the tire. The detecting unit is brought into engagement with the anchoring body by insertion of the inner perimetral edge of the antenna into a perimetral groove formed between the base portion and a retaining portion.

Abstract: A system for automatically recognizing the locations of respective tires includes tire sensors, startup antennas, and a control unit. Locations of the respective tire sensors can be recognized based information of which antenna is involved and whether signals transmitted are identical. With this system, the locations of respective tires of a vehicle can be recognized in a simpler and more efficient way.

Abstract: There is provided an exemplary tire pressure monitoring (TPM) system that can use a half-duplex wireless link to communicate between one or more wheel-mounted sensor units and a vehicle-mounted transceiver unit. The half-duplex wireless link enables the sensor units to report sensor readings to the transceiver unit, and it enables the transceiver unit to make configuration changes to the sensor units for improved communication. Some examples of wireless settings that can be modified include modulation settings, data encoding/decoding settings, error correction settings, and transmission power settings.