A motor vehicle (10, 100) with a chassis (20, 120), a plurality of wheels (12, 14, 16, 18) with pneumatic tyres (14a) and an on-board compressed air system (40, 140) for supplying pneumatic operating devices of motor vehicle (10, 100), includes at least one brake circuit (44) and/or one air suspension system (46), an emergency system (60, 160) for temporary pressurisation of the tyres in the event of a flat tyre, including compressed air connections (62, 64, 66, 68; 162, 164, 166, 168) installed permanently on the motor vehicle, each one having a flexible compressed air hose (70) for connection with a tyre valve (14b) and may be stored entirely in the motor vehicle (10, 100) and extracted from it in the event of a flat tyre, and which is supplied by the on-board compressed air system (40, 140).

The present application provides a tire pressure sensing system, comprising: a cloud server, an intelligent communication terminal and several tire pressure sensing devices; wherein the tire pressure sensing device is provided with a tire pressure sensor, and is configured to send target acquisition data to the intelligent communication terminal after establishing communication with the intelligent communication terminal; the target acquisition data comprises an ID of the tire pressure sensing device; after receiving the target acquisition data, the intelligent communication terminal sends at least the ID of the tire pressure sensing device in the target acquisition data in combination with location information of the intelligent communication terminal to the cloud server for storage and/or data analysis. By the system, the tire pressure sensing devices that have been arranged are effectively utilized; the installation status of tire pressure sensing devices worldwide may be obtained according to the location information of the sensors.

An embodiment tire pressure sensor position identification apparatus includes a receiver configured to receive signals from tire pressure sensors and to receive information about wheel pulse counts from wheel speed sensors, the tire pressure sensors being mounted on an inner wheel and an outer wheel of a vehicle to have a specific phase difference therebetween, and a controller configured to identify positions where the tire pressure sensors are mounted based on the specific phase difference, the signals received from the tire pressure sensors, and the wheel pulse counts.

A portable electronic device and method therein for locating tire sensors on a vehicle is provided. The portable electronic device comprises a camera and RFID circuitry. The portable electronic device determines the tire location of each tire on the vehicle using image recognition on image data from the camera. The portable electronic device also detects one or more tire sensors of each tire via the RFID circuitry as the portable electronic device sequentially guides a user of the portable electronic device via a user interface to motion the portable electronic device in proximity of each tire at each determined tire location. Further, the portable electronic device also identifies each of the one or more detected tire sensors on the vehicle.

An apparatus for estimating a tire resonance frequency may include a sensor for detecting rotation of a tone wheel; and a signal processor for calculating the detected rotation to produce a corrected wheel speed, filtering the corrected wheel speed in a predetermined manner to produce a filtered wheel speed from which engine noise is removed, and estimating a resonance frequency of a tire using the filtered wheel speed.

An apparatus for estimating a tire resonance frequency may include a sensor for detecting rotation of a tone wheel; and a signal processor for calculating the detected rotation to produce a corrected wheel speed, filtering the corrected wheel speed in a predetermined manner to produce a filtered wheel speed from which engine noise is removed, and estimating a resonance frequency of a tire using the filtered wheel speed.

A tire pressure system for a vehicle includes an inflation/deflation system that includes a compressor and a valve in fluid communication with four tires. Each of the four tires have a tire pressure. At least one sensor is configured to receive at least one of vehicle location data, vehicle environmental data and other sensor information. A controller is in communication with the inflation/deflation system and the at least one sensor. The controller is configured to select at least one of the four tires to adjust the tire pressure of the selected at least one of the four tires. The controller is configured to control at least one of the valve and compressor to achieve at least one of desired fuel economy and desired road control of the selected at least one of the four tires.

A tire having a transponder comprises: a crown which has a crown reinforcement with an axial end at each edge, joined at each of its axial ends to a bead, which has an inner end, by a sidewall; a carcass reinforcement which is formed of adjacent first wires and is anchored in each bead around a spiral formed by second wires; the transponder comprising a core defining a first axis, a first cover wire helically wound around the core and an electrical insulation device; and the first cover wire comprising at least two conductive wire elements galvanically connected to an electronic chip comprising a radiofrequency transceiver component. The thickness of the elastomer mixture separating the outer cover wire, which is located furthest outwards from the first axis, and the reinforcements is greater than 0.5 millimeter.

A tire position learning apparatus for a tire pressure monitoring system, comprising: a plurality of tire module units, each of which is respectively mounted on a tire of the vehicle to detect pressure information and transmit same via an ultra-wide band (UWB) signal; and a vehicle module unit which communicates with the plurality of tire module units via UWB signals so as to detect the individual tire pressures and any tire in which low pressure has occurred.

A tire replacement forecasting system includes a tire supporting a vehicle. A sensor unit is mounted on the tire and includes a footprint centerline length measurement sensor and a pressure sensor. A processor is in electronic communication with the sensor unit and receives the measured centerline length and the measured pressure. An electronic vehicle network transmits selected vehicle parameters to the processor. A wear state predictor is stored on the processor and receives the measured centerline length, the measured pressure, and the selected vehicle parameters to generate an estimated wear state of the tire. A forecasting model is stored on the processor and receives multiple estimated wear states of the tire, and predicts future wear states of the tire. A forecast tire replacement date is generated by the forecasting model when the predicted future wear states of the tire are estimated to pass a predetermined wear threshold.