A method for detecting a change in location of at least one wheel of a motor vehicle, the vehicle having at least one central processing unit, one wheel unit which includes an electronic assembly of sensors and which is mounted on the wheel, and one bidirectional communications assembly. The method notably includes a first comparison step, during which a first evaluation pattern is compared with a first reference pattern to determine whether the location of the wheel has changed, the patterns being representative of the effective location of the wheel unit in the motor vehicle.

The present disclosure provides a vehicle control system. The vehicle control system includes a transceiver operating in a sub-GHz frequency band configured to transmit and receive data from a RKE user terminal of the vehicle, a set of TPMS sensors and at least one remote control terminal located outside the vehicle; and an ECU connected to the transceiver and configured to: perform lock or unlock and engine start functions in responding to data from the RKE user terminal, receive tire pressure data from the TPMS sensors and control the remote control terminal in responding to a user action.

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 tire pressure detection system that includes a plurality of transmission apparatuses that transmit a request signal for requesting air pressure information of a tire of a vehicle, a detection apparatus that detects air pressure in a tire in accordance with the request signal, and transmits a response signal that includes air pressure information, and an acquisition apparatus that receives the response signal, and acquires the air pressure information, and, in a case of an abnormality where a response signal in response to the request signal of one transmission apparatus is not received by the acquisition apparatus after the one transmission apparatus has transmitted the request signal to the detection apparatus, another transmission apparatus transmits a high-power request signal of a higher output level than the request signal of the one transmission apparatus.

A method for signaling the theft of a wheel of a motor vehicle. The vehicle includes a plurality of wheels and a computer. At least one of the wheels includes a sensor. The method includes, for the at least one wheel, the steps of measuring at least one value for the internal pressure of the tire of the wheel, detecting that the vehicle has been raised if the absolute value of the difference between the at least one measured internal pressure value and a predetermined reference internal pressure value is greater than a predetermined pressure difference threshold when it is detected the vehicle has been raised, detecting the detachment of the wheel when it is detected that the wheel has become detached, and signaling the theft of the wheel.

A single antenna tire pressure detection system and a method for operating the same includes a detection end and a receiving end. The detection end detects the tire pressure through tire pressure detectors to obtain tire condition information. The tire pressure detectors provides two types of signal output modes which are radio frequency (RF) signals and short-distance RF signals. These signals are transmitted not only to the original in-vehicle tire pressure receiving device but also displayed on the in-car entertainment system and the user's mobile device, showing tire condition information.

A method for signaling the theft of a wheel of a motor vehicle. The vehicle includes a plurality of wheels and a computer. At least one of the wheels includes a sensor. The method includes, for the at least one wheel, the steps of measuring at least one value for the internal pressure of the tire of the wheel, detecting that the vehicle has been raised if the absolute value of the difference between the at least one measured internal pressure value and a predetermined reference internal pressure value is greater than a predetermined pressure difference threshold when it is detected the vehicle has been raised, detecting the detachment of the wheel when it is detected that the wheel has become detached, and signaling the theft of the wheel.

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 sensor transceiver transitions into a first state that is capable of receiving RF waves intermittently. Upon starting to receive a burst signal on RF waves from a vehicle-body system under the first state, the sensor transceiver transitions into a second state that is capable of receiving RF waves continuously. Upon receiving a request signal on RF waves from the vehicle-body system under the second state, the sensor transceiver transmits data on tire pressure to the vehicle-body system.

A sensor transceiver is kept in a state capable of receiving LF waves. Upon receiving LF waves indicating a start command from the vehicle-body system, the sensor transceiver is caused to be in a state capable of receiving RF waves accordingly. Upon receiving an instruction command from the vehicle-body system under the state capable of receiving RF waves, the sensor transceiver notifies the vehicle-body system of data on tire pressure.