A car door-triggered tire pressure detection system includes an on-board unit with an ECU unit connected to a main high-frequency transceiver module, a main display, and a door sensing module. The on-board unit does not include a vehicle low- frequency circuit and a vehicle low-frequency antenna. Multiple TPMS each include a TPMS main control unit connected to a TPMS high-frequency transceiver module. Each TPMS does not include a TPMS low-frequency circuit and a TPMS low-frequency antenna. When the door sensing module detects a car door is opened, the main display shows the tire pressure values returned by each TPMS. The problem of excessive antennas used in known wireless transmission systems is improved. When the door sensing module detects the opening of the car door, the main display shows the tire pressure values returned by each TPMS.

A method for detecting a change in location of the wheels of a motor vehicle, the vehicle having at least one central processing unit, and two wheel units which each includes an electronic assembly of sensors and which are each mounted on one of the wheels. The method including a monitoring step, during which a first pattern representative of the location of the wheel unit is established, when the vehicle is at a standstill, and an evaluation step, during which a possible first variation in each first pattern is measured to estimate if the location of the wheel has changed.

A rubber patch, which is useable for mounting an active electronic component to a tire, is described. The rubber patch includes a base having a connecting face and support face. The connecting face is substantially planar and is intended to be fixed to an internal surface of the tire. The support face is opposite the connecting face and is arranged to support the active electronic component. The rubber patch further includes a passive label arranged between the connecting face and the support face. The passive label is for identifying the tire and is provided with a memory for storing a unique identification data item pertaining to the tire. A corresponding tire monitoring system, which is configured to read at least the identification data item pertaining to the tire, also is described.

A tire pressure monitoring system includes a plurality of detection devices that are provided a plurality of tires of a vehicle and each wirelessly transmit an air pressure signal including air pressure information in response to a request signal and a monitoring device that transmits the request signal to each of the detection devices and receives the air pressure signal transmitted from each of the detection devices in response to the request signal, to monitor air pressure of each of the tires. The monitoring device includes a request signal transmitting unit that transmits the request signal to a region including one tire position and an air pressure signal receiving unit that receives an air pressure signal. The monitoring device determines whether or not the air pressure signals transmitted from the plurality of detection devices are received and changes the transmission strength of the request signal depending on the determination result.

Provided is an on-board device and a vehicle communication system that can expand the transmission range of signals that are transmitted from transmission antennas of the on-board device. An on-board device transmits signals to a portable device, from a plurality of first to fourth LF transmission antennas that are provided for a vehicle at positions that are separate from each other. The on-board device includes a transmission unit that transmits the signals from the first to fourth LF transmission antennas such that a transmission range in which the portable device can receive the signals is a range around the vehicle. The transmission unit substantially simultaneously transmits the signals from two or more transmission antennas among the first to fourth LF transmission antennas, to expand the transmission range.

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.

A rubber patch, which is useable for mounting an active electronic component to a tire, is described. The rubber patch includes a base having a connecting face and support face. The connecting face is substantially planar and is intended to be fixed to an internal surface of the tire. The support face is opposite the connecting face and is arranged to support the active electronic component. The rubber patch further includes a passive label arranged between the connecting face and the support face. The passive label is for identifying the tire and is provided with a memory for storing a unique identification data item pertaining to the tire. A corresponding tire monitoring system, which is configured to read at least the identification data item pertaining to the tire, also is described.

A rubber patch, which is useable for mounting an active electronic component to a tire, is described. The rubber patch includes a base having a connecting face and support face. The connecting face is substantially planar and is intended to be fixed to an internal surface of the tire. The support face is opposite the connecting face and is arranged to support the active electronic component. The rubber patch further includes a passive label arranged between the connecting face and the support face. The passive label is for identifying the tire and is provided with a memory for storing a unique identification data item pertaining to the tire. A corresponding tire monitoring system, which is configured to read at least the identification data item pertaining to the tire, also is described.

The invention relates to a communication method for a monitoring system comprising a wheel unit (16a, 16b, 16c, 16d) intended to communicate with an electronic control unit (12) by way of Bluetooth Low Energy communication in order to establish two-way communication between the wheel unit and the electronic control unit, the wheel unit being able to transmit periodic signals of short duration to attempt to connect to the electronic control unit, the electronic control unit being able to acknowledge the periodic signals by transmitting a frame of radiofrequency signals to the wheel unit. The method comprises a step of automatically adapting the radiofrequency transmission power of the wheel unit when the wheel unit is in advertising mode, during which the wheel unit transmits signals of variable radiofrequency power so as to determine a minimum radiofrequency power starting from which the electronic control unit is capable of acknowledging at least one signal by transmitting a frame of radiofrequency signals to the wheel unit.

Figure for the abstract: FIG. 1

An intelligent intervention method based on an integrated tire pressure monitoring system includes monitoring a tire pressure and a tire temperature of a vehicle, and monitoring, a wheel speed of the vehicle; transmitting the tire pressure, the tire temperature and the wheel speed to a host; judging in real time whether the vehicle is in a normal status or in an abnormal status, via integrating the tire pressure, the tire temperature and the wheel speed; producing a deviation signal, when the tire pressure, the tire temperature and the wheel speed deviate from normal thresholds and transmitting the deviation signal to an intelligent intervention system; and performing intelligent intervention to slow down the vehicle in a straight line until the vehicle stops, when the deviation signal is received. The method enables the vehicle to run safely until stopping even in case of tire blowout, so as to prevent rollover or collision.