A tyre monitoring device configured to be mounted on a wheel is described. The device includes a pressure sensor for sensing an inflation pressure of a tyre on the wheel; a wireless communication interface configured to receive data indicative of a command to indicate tyre pressure; a storage storing a predetermined pressure value; an indicator configured to provide a first indication and a second indication, wherein the first indication is different from the second indication; and a processing system configured to operate the indicator to provide the first indication or the second indication responsive to receipt of the command to indicate tyre pressure, and based at least in part on the inflation pressure and the predetermined pressure value.

Embodiments of the present invention relate to the field of automotive technologies, and disclose a tire location positioning method and apparatus, a tire pressure monitoring system (TPMS) receiver, a tire pressure sensor, a TPMS and an automobile. The method includes: controlling a first exciter to send a first excitation signal, and controlling a second exciter to send a second excitation signal; respectively receiving response signals that are generated according to the first excitation signal or the second excitation signal by all tire pressure sensors; performing positioning on front and rear wheels according to times when the response signals are received, to identify response signals sent by tire pressure sensors of the front and rear wheels; and performing positioning on left and right wheels according to the signal strength information, to identify response signals sent by tire pressure sensors of the left and right wheels.

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 monitoring system and tire pressure detector setting apparatus for tractor-trailer are disclosed. The tractor-trailer has a tractor and a trailer having a plurality of wheels, respectively. The tire pressure monitoring system includes a plurality of tire pressure detectors and a monitoring device. The tire pressure detectors are disposed on each of the wheels, detecting the tire pressure status of each wheel and generating a tire pressure information. Each tire pressure detector has a wheel code corresponding to one of the wheels, respectively. The monitoring device is disposed on the tractor for receiving the tire pressure information and the wheel codes of the corresponding tire pressure detector. When the tire pressure information and the wheel code are transmitted to the monitoring device, the monitoring device accurately monitors the tire pressure status of each wheel.

A transmitter includes a condition detecting section, which detects a condition of a tire, a memory section, which stores identification information, a transmitting section, which transmits a data signal, a trigger receiving section, which receives a trigger signal transmitted from a trigger device, and a controlling section. When the trigger receiving section receives the trigger signal, the controlling section generates data corresponding to the trigger signal and causes the transmitting section to transmit the data signal, which includes the generated data. The controlling section generates encrypted data when the trigger receiving section receives a trigger signal of unmodulated waves. The controlling section generates non-encrypted data that includes the identification information when the trigger receiving section receives a trigger signal of modulated waves.

A tire air pressure detection device includes a plurality of transceivers and a receiver. The plurality of transceivers are correspondingly provided in a plurality of wheels of a vehicle. Each wheel has a tire. The receiver is attached to a vehicle body. Each of the plurality of transceivers outputs a detection signal indicative of an air pressure of the tire of the corresponding wheel. Each of the plurality of transceivers processes the detection signal, and generates a frame storing the processed detection signal as data related to the air pressure of the tire. The receiver receives the frame. The receiver detects the air pressure of the tire based on the data stored in the received frame.

An aspect of the invention relates to a method for the radio-oriented optimization of wheel monitoring in a vehicle equipped with vehicle wheels, wherein the monitoring of at least one of the vehicle wheels is prompted by an electronic wheel unit arranged on the relevant vehicle wheel capturing at least one wheel operating parameter of the vehicle wheel, and radio signals containing information about the at least one captured wheel operating parameter being transmitted for a respective wheel rotational position of the vehicle wheel, stipulated by the electronic wheel unit, wherein the radio signals are received and evaluated by a control device of the vehicle and wherein the radio-oriented optimization of the wheel monitoring is prompted by the electronic wheel unit being used to transmit multiple radio signals for different wheel rotational positions, wherein the radio signals are received by means of the control device and rated in respect of their respective radio signal strength, wherein the control device is used to transmit an optimization radio signal to the electronic wheel unit, wherein the optimization radio signal contains optimization information formed on the basis of the rating of the radio signals, and wherein the electronic wheel unit is used to receive the optimization radio signal, and the optimization information contained therein is taken into consideration for the stipulation of the wheel rotational position of the vehicle wheel for radio signals that are to be transmitted subsequently.

A method of acknowledging data transmissions for a tire pressure monitoring system (TPMS) sensor module includes generating tire pressure information based on measuring an internal air pressure of a tire; selectively operating a transceiver in an advertising mode and a standby mode; transmitting, by the transceiver, a message including the pressure information while in the advertising mode; on a condition that the transceiver receives, in the advertising mode, an acknowledgement in response to the transmitted message, setting the transceiver into the standby mode; while the transceiver is in the advertising mode and on a condition that the transceiver does not receive any acknowledgement in response to the transmitted message within a waiting period, instructing the transceiver to retransmit the message via a command; and retransmitting the message, by the transceiver, in the advertising mode after the waiting period in response to the command.

An apparatus and method is provided that includes measuring a tire pressure for at least one tire with at least one tire pressure sensor. The tire pressure sensor has at least a first resolution for transmitting pressure information and a second resolution for transmitting pressure information that is higher than the first resolution. If a measured tire pressure is determined to be above a predetermined pressure threshold, the apparatus and method identify whether the tire pressure sensor has experienced at least one predetermined vehicle operating characteristic, and/or identify whether the tire pressure sensor has been activated by a command. The tire pressure sensor is only locked into the second resolution if the tire pressure sensor has experienced the at least one predetermined vehicle operating characteristic or if the tire pressure sensor has been activated by the command.

A tire pressure monitoring system (TPMS) and TPMS sensor module are provide. The TPMS sensor module includes a pressure sensor configured to measure an internal air pressure of a tire and generate tire pressure information, a microcontroller unit electrically connected to the pressure sensor, and a transceiver electrically connected to the microcontroller unit, the transceiver configured to transmit a message including the pressure information. Where, on a condition that the transceiver receives an acknowledgement in response to the transmitted message, the microcontroller unit is configured to set the transceiver into a standby mode, and, where, on a condition that the transceiver does not receive any acknowledgement in response to the transmitted message within a waiting period, the microcontroller unit is configured to instruct the transceiver to retransmit the message, and the transceiver is configured to retransmit the message after the waiting period.