A processing device (120) of a tire state detection system (100) is provided with an acceleration data acquisition unit (123) for acquiring the acceleration data detected by an acceleration sensor (111) at every predetermined acquisition interval, an acceleration data extraction unit (125) for extracting the maximum acceleration data indicating at least the maximum acceleration and the intermediate acceleration data indicating the intermediate acceleration excluding the minimum acceleration data indicating the minimum acceleration from 3 or more acceleration data acquired sequentially, and a calculation unit (127) for executing an calculation using the extracted intermediate acceleration data.

A TPMS sensor for towable asset is configured to not only report a tire pressure but also whether the tire has moved. A telematics transceiver may then maintain a GNSS receiver in a sleep mode of operation (e.g., powered down) while the TPMS sensor does not report any motion.

An electronic wheel unit for arrangement on a vehicle wheel of a vehicle, having at least one sensor for detecting at least one wheel operational parameter, a control device, which is designed to generate wheel operational data on the basis of the at least one wheel operational parameter, a radio device for transmitting radio data signals containing the wheel operational data, a power supply device for supplying electrical power to the wheel unit which has an energy-harvesting device for converting mechanical energy captured on a rotation of the vehicle wheel into electrical energy and an electric battery, wherein the electronic wheel unit furthermore has a switchover device for switching over between the energy-harvesting device, and the electric battery for the electrical power supply to the wheel unit, and the switchover device has an actuable switch and an actuating device for actuating the switch, wherein the at least one wheel operational parameter comprises an acceleration parameter, and the actuating device effects the switchover depending on the acceleration parameter or a parameter derived therefrom.

A tire pressure detector Bluetooth transmission system and process are provided. The tire pressure detector Bluetooth transmission system includes a monitoring module for detecting pressure, and a first Bluetooth module for transmitting and receiving Bluetooth signals; a host terminal, including a second Bluetooth module for transmitting and receiving Bluetooth signals, and a network module for transmitting and receiving signals; and a server, transmitting signals with the network module; wherein the server stores a firmware package to be installed on the monitoring module and the first Bluetooth module. A Bluetooth wireless transmission is provided between the tire pressure detector and the host terminal.

Method for managing the energy in a system for verifying the inflation pressure of the tires of an aircraft, consisting in measuring, by a pressure sensor, at least one inflation pressure of each of the tires, obtaining a unique identification data relating to each of the tires, and sending via the wireless communication link the measurements and data thus collected to a processing unit disposed in or out of the aircraft for them to be available to a pilot or a maintenance operator, the step of sending the measurements and data being carried out in an acyclic manner as a function of a trigger signal given by a motion detector that detects the motion of the wheels of the aircraft as long as the speed is lower than a predetermined maximum speed.

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.

The invention relates to a method for identifying electronic wheel units (12-1 to 12-6b) arranged on vehicle wheels (W1-W6b) of a vehicle (1), by means of which method those electronic wheel units (12-3a, 12-3b; 12-4a, 12-4b; 12-5a, 12-5b; 12-6a, 12-6b) which are arranged on vehicle wheels (W3a, W3b; W4a, W4b; W5a, W5b; W6a, W6b) connected to one another for conjoint rotation are identified, the method comprising the steps of: acquiring a respective cumulative number (Ni) of revolutions of each of the vehicle wheels (W1-W6b) using the electronic wheel units (12-1 to 12-6b); comparing with one another the cumulative numbers (Ni) of revolutions of the vehicle wheels (W1-W6b), identifying those electronic wheel units (12-3a, 12-3b; 12-4a, 12-4b; 12-5a, 12-5b, 12-6a, 12-6b) for which the cumulative numbers (Ni) of revolutions at least approximately coincide as being arranged connected to one another for conjoint rotation.

A tire physical information estimation system includes a physical information estimation unit and a data acquisition unit. The physical information estimation unit that includes a learning type arithmetic operation model including an input layer through an output layer and estimates tire physical information produced in association with movement of a tire. The data acquisition unit acquires input data input to the input layer. The arithmetic operation model includes a feature extraction unit that performs a convolution operation in an operation halfway between the input layer and the output layer, the arithmetic operation model outputting normalized tire physical information in at least two axial directions from the output layer.

A method for detecting a wear-relevant load on a vehicle wheel uses a tire pressure monitoring unit mounted on the vehicle wheel containing an acceleration sensor. A rotational frequency of the vehicle wheel is determined for a time interval from a series of measured values of the acceleration sensor at first time intervals. A centrifugal acceleration value is determined for the time interval. A proportionality factor is determined from the rotational frequency and centrifugal acceleration value, linking the square of the rotational frequency with the centrifugal acceleration. A rotational frequency of the wheel is continuously calculated from measured values of the centrifugal acceleration, which have been determined at second time intervals that are greater than the first time intervals, and from the proportionality factor. A load value is respectively calculated from the rotational frequency and the second time intervals. These load values are continuously added up to an overall load.

A counter-deflection load estimation system for a tire is provided. The tire includes a pair of sidewalls extending to a circumferential tread and supporting a vehicle, and the vehicle includes a controlled area network bus. In the system, a sensor is mounted to the tire and measures a parameter of the tire. A counter-deflection of the tire is determined from the measured parameter, and a linear vehicle speed signal is received through the controlled area network bus. A processor is in electronic communication with the sensor and with the controlled area network bus. A load estimation module is in electronic communication with the processor, receives the linear vehicle speed signal and the counter-deflection of the tire, and determines a load on the tire.