Method and apparatus are disclosed for controlling a TPMS sensor of a vehicle tire. An example vehicle includes a communication module, a tire, and a TPMS sensor corresponding to the tire. The TPMS sensor is configured to receive a target pressure from the communication module, determine a modified target pressure based on vehicle data determined by a vehicle sensor, and, responsive to determining that a measured pressure differs from the modified target pressure by a threshold amount, transmit an alert to the communication module.

A tire pressure sensor device (122) for a wheel (112) of an aircraft (102) including a pressure sensor (124) for measuring the internal pressure of a tire, a temperature sensor (126) for measuring a temperature local to the tire (116), a memory unit (131) local to the tire for storing data, and a control unit (128) local to the tire arranged to record in the memory unit (131) data of the readings taken at intervals of time. The data recorded for each reading includes an indication of the time of the reading, the tire pressure and the temperature local to the tire. Measurements may be taken and recorded over time, both when the aircraft is on the ground and when the aircraft is in flight. Data may be uploaded to a portable handheld device (140) for analysis when maintaining the tires in their correctly inflated state.

A pressure measuring device for a bicycle has a housing that includes a pressure chamber. The pressure chamber has a valve disposed in a first opening and a second opening into or out of a tire assembly volume of a tire assembly. A sense element is in pressure communication with the pressure chamber along a flow path between the first and second openings.

Method and apparatus for transmitting data from a wheel unit, arranged on a wheel of a vehicle, to a central unit of the vehicle

The invention relates to a method for transmitting data from a wheel unit (20-1 to 20-4), arranged on a wheel (W1-W4) of a vehicle (1), to a central unit (30) of the vehicle (1), involving: sending the data in the form of temporally spaced data transmissions (R1-R4) from the wheel unit (20-1 to 20-4) to the central unit (30), transmission times of the data transmissions (R1-R4) being stipulated by the wheel unit (20-1 to 20-4) according to a transmission algorithm; and receiving the data transmissions (R1-R4) sent by the wheel unit (20-1 to 20-4) by means of the central unit (30). In this case, there is provision for the method to further comprise: evaluating reception times at which each of the data transmissions (R1-R4) are received by the central unit (30), according to an evaluation algorithm making allowance for the transmission algorithm; and rating the data transmissions (R1-R4) on the basis of a result of the evaluation of the reception times. Further, the invention relates to a corresponding apparatus (10) for data transmission in a vehicle (1).

A tire internal pressure management device includes a data acquisition unit that acquires internal pressure time series data and temperature time series data of each tire mounted on a mobile body including an aircraft and a vehicle, a representative value calculation unit that calculates a representative value of internal pressure data subjected to temperature correction for each predetermined period, based on the acquired internal pressure time series data and temperature time series data, and an internal pressure filling timing prediction unit that predicts a timing when an internal pressure value falls below a threshold value that is set in advance as an internal pressure filling timing, based on a transition of the calculated representative value of the internal pressure data.

A tire pressure monitor sensor is disclosed. The sensor includes a wireless transmitter and a processing unit. The processing unit provides a time trigger signal within a measurement period and triggers a wireless transmission of a reference signal indicating an occurrence of the time trigger signal to a remote unit. The tire pressure monitor sensor is configured to derive, based on a plurality of acceleration measurement samples within the measurement period, information indicting at least one rotation property of a tire. The tire pressure monitor sensor is further configured to wirelessly transmit the derived information to a remote unit separate from the reference signal.

Provided is an apparatus for estimating an external temperature for monitoring a tire pressure. The apparatus includes a sensor transmitter configured to transmit stop time information which is obtained by measuring a stop time of a vehicle at certain intervals, by using wireless communication, and a sensor receiver configured to receive the stop time information through the wireless communication, and measure the external temperature by using the received stop time information.

A power efficient direct Tire Pressure Monitoring System, TPMS, for providing a non-continuous tire pressure monitoring of a tire of a vehicle, such as a automobile vehicle, the TPMS comprising: a processing unit having at least a first operating mode and a second operating mode; a timing unit; an acceleration measuring unit; a comparing unit; a pressure measuring unit; a transmitting unit; and, a power supplying unit for supplying power to the processing unit in the first and second operating modes wherein the latter mode is less power consuming than the former mode, wherein the processing unit is adapted to: enter the second operating mode after an acceleration threshold and an operating clock frequency have been set; and, enter the first operating mode responsive to a first trigger signal. A tire, a vehicle and a method are also claimed.

A vehicle wheel information acquiring device includes a vehicle wheel sensor and a vehicle-body-side device. The vehicle wheel sensor is configured to revolve around an axle with a rotation of a vehicle wheel. The vehicle-body-side device includes a reception unit, a processing unit, a rotation position acquiring unit, an on-reception rotation position storage unit, and a determination unit. The determination unit is configured to determine whether a revolution position of the vehicle wheel sensor is included in an insufficient received intensity area during a stopping operation of a vehicle.

A tire pressure sensor device (122) for a wheel (112) of an aircraft (102) including a pressure sensor (124) for measuring the internal pressure of a tire, a temperature sensor (126) for measuring a temperature local to the tire (116), a memory unit (131) local to the tire for storing data, and a control unit (128) local to the tire arranged to record in the memory unit (131) data of the readings taken at intervals of time. The data recorded for each reading includes an indication of the time of the reading, the tire pressure and the temperature local to the tire. Measurements may be taken and recorded over time, both when the aircraft is on the ground and when the aircraft is in flight. Data may be uploaded to a portable handheld device (140) for analysis when maintaining the tires in their correctly inflated state.