A tire side device includes a vibration detection unit that outputs a detection signal according to a magnitude of vibration of a tire, an air pressure detection unit that detects the tire pressure, a data acquisition unit that calculates a contact length of the tire with a road surface based on the detection signal and acquires a wheel load data that is a data related to the wheel load based on the contact length, and a data transmission unit that transmits a data related to the tire pressure and the wheel load data. A vehicle side device includes a receiving unit that receives data on tire pressure and wheel load data, a threshold setting unit that sets an alarm threshold for tire pressure based on the wheel load data, and an alarm determination unit that determines that the tire pressure has decreased when the tire pressure indicated by the data on the tire pressure decreases below the alarm threshold.

An abnormality monitoring system includes gas sensors provided in the cavity or the vicinity of a tire provided in a vehicle, a determination unit that determines the presence of an abnormality in the tire on the basis of the detection results of the gas sensors, and an output unit that outputs data based on the determination result of the determination unit. The gas sensors detect a volatile substance when abnormal heat build-up occurs in the tire. The volatile substance is a substance derived from an additive added when a tire is manufactured.

A tire-pressure monitoring system (TPMS) sensor module comprises a pressure sensor, which is configured to measure an internal air pressure of a tire and to generate tire pressure information, an additional, optional sensor, a transmitting/receiving device, a microcontroller unit which is configured to operate the TPMS sensor module in one of three or more different operating modes, wherein a first operating mode includes an inactive standby state, a second operating mode includes a measurement of a physical parameter using the pressure sensor and/or the additional sensor and reading the pressure sensor and/or the additional sensor using the microcontroller unit, and a third operating mode, and wherein in the second operating mode the microcontroller unit is configured to initiate a changeover from the second operating mode to the third operating mode when reading out a specified measurement event.

A tire monitoring system electronic unit suitable for being mounted either on the tire inflation valve or on the internal surface of the tire. The system includes electronics for managing the electronic unit including sensors for measuring parameters of the tire, a microprocessor and a supply battery, and an antenna configured to be mountable on the management electronics; a way of securing the antenna and the electronic managing device to each other; the management electronics thus forming a common base capable of being used with an antenna that can be adapted to the intended location of the electronic unit, either on the tire inflation valve or on the internal surface of the tire.

A direct tire data collection and communication device is adapted for use in a pneumatic vehicle tire. The device incorporates a tire-mounted electronics module comprising a microcontroller, and at least one tire property sensor in electronic communication with the microcontroller and capable of measuring at least one operational property of the vehicle tire. The threshold operational property value defines a positive tire safety condition and a negative tire safety condition. The electronics module calculates accumulated travel data of the vehicle tire while in the negative tire safety condition. A transmitter transmits the travel data to an electronic remote terminal.

A device (10) for securing an electronic member to a wall of a tire casing comprises a base (11) that is able to be secured to the wall (2) of a tire casing, a retaining wall (12), connected to the base (11), the interior surfaces (14, 15) of which define a volume (13) able to accommodate the electronic member, and a clamping system (20) for clamping the retaining wall (12), able to prevent any extraction of the electronic member. The securing device (10) is such that the retaining wall (12), which is able to deform elastically, comprises an opening (18) that allows the electronic member to be extracted and inserted. The retaining wall (12) on its external surface (17) has a retaining device (19) for the clamping system (20). Finally, the clamping system (20) is a single-use system.

Tire health sensor assembly for arrangement in a vehicle tire formed by a housing arranged for accommodating a magnet assembly formed by at least one magnet, a sensor module including at least one tire pressure sensor, power means in the form of at least one battery or capacitor and/or energy harvester, and a communication module wherein the magnet assembly and sensor module are arranged at lower part of the housing providing the housing, and accordingly the tire health sensor assembly, with a centre of gravity at lower part of the housing which together with magnetic force of the magnet assembly are arranged to self-align/correct the tire health sensor assembly in relation to an inner circumferential surface of the tire, and attachment to a metal cord of the tire or metal wheel of the tire.

This disclosure is directed to systems and methods that determine theft of a wheel on a vehicle using a capacitive proximity sensor system. The systems and methods determine that a vehicle is parked, and then receives information indicative of a capacitance at a first sensor positioned proximate a wheel well of the vehicle. The systems and methods further determine, based on the information, that the capacitance exceeds a first threshold. The systems and methods further determine, based on the information, that the capacitance exceeds the first threshold for a period of time that exceeds a second threshold. The systems and methods further send a message to a mobile device in response to capacitance exceeding the first threshold for the period of time that exceeds the second threshold.

Tires including a bodies formed of one or more tire plies are disclosed. In various implementations, a tire may include several split-ring resonators (SRRs), each associated with a natural resonance frequency configured to shift in response to a change in an elastomeric property of a respective one or more tire plies. The elastomeric property may include one or more of a reversible deformation, stress, or strain. In some implementations, the one or more SRRs may include a first split-ring resonator (SRR) including first carbon particles that may uniquely resonate in response to an electromagnetic ping based at least in part on a concentration level of the first carbon particles within the first SRR and a second SRR including second carbon particles that may uniquely resonate in response to the electromagnetic ping based at least in part on a concentration level of the second carbon particles within the second SRR.

A flexible sensor unit is embedded in a tire. The flexible sensor unit includes a plurality of individual circuit boards. Each circuit board includes at least one electronic component. The at least one electronic component includes a radio frequency identification integrated circuit, a microcontroller unit, at least one sensor, a power source and a boost converter. Each one of a plurality of electrically conductive flexible connecting ribbons extends between the circuit boards. An end ribbon is electrically connected to at least one of the circuit boards. An antenna is disposed on the end ribbon. The antenna transmits data from the at least one sensor, as processed by the microcontroller unit, and identification data from the radio frequency identification integrated circuit, to an external reader.