A system and method/apparatus are provided which dynamically and optionally automatically and individually adjust air pressure in the tire or tires of a vehicle. In one purely mechanical embodiment, the system is adapted for use with at least one tire mounted on a rim. The tire has an internal volume inflated with air. The rim is made up of two nested portions adapted such that relative rotation of the nested portions from a neutral position in which tire pressure is at a highest level causes a device in the system to increase the volume inside the tire so as to reduce the tire pressure, thereby increasing grip. The invention adjusts tire pressure quickly and dynamically, depending on braking or acceleration forces acting on the vehicle, and optionally, based on the terrain and the particular road or track conditions to which the vehicle is subjected.

A duplex Bluetooth transmission tire pressure system is provided. The duplex Bluetooth transmission tire pressure system includes a host, a plural of Bluetooth tire pressure detectors and a plural of vehicle transceivers; the host is electrically connected to the plural of vehicle transceivers; the plural of vehicle transceivers and the plural of Bluetooth tire pressure detectors are Bluetooth duplex packet transmitted. The plural of Bluetooth tire pressure detectors includes a locating program and a tire condition program. The host commands the vehicle transceiver to transmit a Bluetooth controlling packet to the plural of Bluetooth tire pressure detectors to operate or stop the locating program and limit the tire condition program.

A wireless programming method for tire pressure detectors includes the following steps. A wireless programmer sends an activating command. The tire pressure detectors send a responding message. The wireless programmer receives the responding messages and records identification codes in the received responding messages. The wireless programmer sends a stop-responding command to make the tire pressure detector with the identification codes, which is recorded in the wireless programmer, enter a stop-responding mode. The wireless programmer sends the activating command again. The tire pressure detectors not in the stop-responding mode send the responding messages. The wireless programmer receives the responding message and records the identification code in the received responding message. The wireless programmer sends a code to the tire pressure detectors corresponding to the recorded identification code to program the code. With such design, it could be ensured that the code could be sent and programmed into all the tire pressure detectors.

A tire pressure monitoring device with a dynamic energy-saving mechanism and an energy-saving method of tire pressure monitoring are provided. The tire pressure monitoring device is installed in a car and includes a plurality of tire pressure detectors and a main control receiver. Through the mutual transmission of signal and information between each tire pressure detector and the main control receiver, the main control receiver or each tire pressure detector can directly control and change the transmission range of each tire pressure detector. The signal range can match the distance between the tire pressure detector and the main control receiver, the closer the distance from the tire pressure detector to the main control receiver is, the smaller the signal range is.

A tire pressure detection device includes a chip, a Bluetooth receiving circuit, a Bluetooth antenna, a battery, an LF trigger coil, a power switch, an LF trigger switch and a monitor respectively connected to a case. The Bluetooth receiving circuit is electrically connected to the chip and the Bluetooth antenna. The LF trigger coil, the power switch, the LF trigger switch and the monitor are respectively connected to the chip. A user holds and inserts the tire pressure detection through a double rims. The chip sends an LF signal via the LF trigger coil to activate a Bluetooth tire pressure detector at the inner rim to detect tire pressure. A pressure signal of an inner tire is sent to the chip via the Bluetooth antenna and the Bluetooth receiving circuit. The chip displays the tire pressure of the inner tire on the monitor to be checked by the user.

The application discloses a tire pressure sensor communication method, device, electronic equipment and storage medium. The method comprises the follow steps: acquiring a first tire state when a tire pressure sensor is awakened; collecting first tire pressure data corresponding to the first tire state, and determining whether the first tire state meets a preset state switching condition according to the first tire pressure data; controlling the first tire state to switch to a corresponding second tire state if the first tire state meets the state switching condition; acquiring a preset tire pressure data transmission control parameter corresponding to the second tire state; collecting second tire pressure data corresponding to the second tire state according to the tire pressure data transmission control parameter, and sending the second tire pressure data to a vehicle-mounted tire pressure monitoring module.

This application relates to a tire monitoring system. In one aspect, the system includes a sensor module installed in a tire provided in a vehicle to obtain tire data and a communication module. The communication module may include a transceiver configured to transmit and receive the tire data, and an output unit configured to output one of a caution signal and a warning signal. The communication module may also include a controller configured to determine whether a state of the tire is abnormal based on the tire data and control the output unit to output one of the caution signal and the warning signal based on the determination result.

A tire position determination system is provided with: a plurality of tire air pressure transmitters each capable of transmitting a first radio signal including air pressure data and a tire ID; a plurality of axle rotation detection units each generating axle rotation information; and a receiver mounted to a vehicle body and capable of receiving the first radio signal. Each of the plurality of tire air pressure transmitters includes a specific position detection unit capable of detecting the arrival of the tire air pressure transmitter at a specific position on a trajectory of rotation of the tire, and a transmission control unit that, based on a result of detection, generates a second radio signal including data indicating the arrival of the tire air pressure transmitter at the specific position on the trajectory of rotation of the tire and the ID. The receiver includes a position determination unit that determines a tire position of the plurality of tires based on the second radio signal.

A flexible sensor unit is embedded in a tire. The flexible sensor unit includes a plurality of individual circuit boards. Each circuit board includes at least one electronic component. The at least one electronic component includes a radio frequency identification integrated circuit, a microcontroller unit, at least one sensor, a power source and a boost converter. Each one of a plurality of electrically conductive flexible connecting ribbons extends between the circuit boards. An end ribbon is electrically connected to at least one of the circuit boards. An antenna is disposed on the end ribbon. The antenna transmits data from the at least one sensor, as processed by the microcontroller unit, and identification data from the radio frequency identification integrated circuit, to an external reader.

A self-adaptive method for assisting tire inflation enables control of tire inflation. If the vehicle stops, the central unit of a TPMS (Tire Pressure Monitoring System) can change in a self-adaptive manner from the reception configuration of the “moving” mode at a high bit rate to a “stationary” mode at a low bit rate. At the same time, if there is a variation in the pressure of a tire, the corresponding wheel unit is set for transmission in “stationary” mode at a low bit rate. The power Pa received at the central unit varies according to a curve (20) which shows, in the illustrated example, two positions of poor reception. By replacing high bit rate transmission with low bit rate transmission, the signal/noise ratio is improved and there is a gain in reception sensitivity of about 5 dB, and the risks of disturbance of the received power are virtually eliminated.