A tire pressure monitoring system used for a vehicle includes a sensor unit, a receiving device, and a control device. The sensor unit is provided at each wheel of the vehicle, detects tire pressure of the each wheel with a tire pressure sensor and transmits data of the detected tire pressure by radio waves. The receiving device includes a receiving antenna that is provided at an outside of the vehicle to receive the data of the tire pressure transmitted from the sensor unit. The control device includes a data acquisition unit that acquires the data of the tire pressure received by the receiving device.

A method for storing positions of tires and a system for the same are disclosed. The method includes inputting information for a tire by a hand held tool. Transmitting the information for the tire and a storing position of the tire to a remote server, and generating an index information including the storing position of the tire by the remote server. Accordingly, the storing position of the tire can be conveniently inquired, such that the time-consuming of changing the tires of vehicle can be effectively reduced.

A computer-implemented method for vehicle wheel position localization includes accumulating in data storage information regarding temperature characteristics corresponding to each of a respective plurality of wheel positions for each of one or more types of vehicles. The information regarding temperature characteristics may be information regarding temperature rise characteristics associated with a given load. Contained air temperature data is collected from sensors respectively associated with a tire mounted on a vehicle. The sensors may for example be TPMS sensors. A local computing unit or remote server identifies a wheel position associated with the tire, based on a comparison of the collected contained air temperature over a period of time with respect to the stored information regarding temperature characteristics. The wheel position information may be implemented to estimate and/or predict tire wear status for the corresponding tire, and optionally further to predict tire traction status further based on collected vehicle-tire data.

A wireless tire pressure detector automatic find and locate system and the operation method thereof are provided. The wireless tire pressure detector automatic find and locate system includes a plurality of wireless tire pressure detectors and a wireless host. The wireless host and each wireless tire pressure detector are wirelessly paired and connected through a wireless system, and a first wireless tire pressure detector is designated. The wireless host and the first wireless tire pressure detector detect signal data between the first wireless tire pressure detector and other wireless tire pressure detectors, and the first wireless tire pressure detector transmits the data to the wireless host for analyzing and positioning to localize each wireless tire pressure detector.

A vehicle has a detecting section that detects, as a detection value, a rotational angle of each wheel assembly. A transmitter provided in each wheel assembly transmits transmission data when the rotational angle of the wheel assembly is any of specific angles. At the performance of transmission at the specific angle, the transmitter changes data that is different from angular data indicating the rotational angle of the wheel assembly and is included in the transmission data in accordance with the specific angle. A vehicle-mounted receiver collects the detection values detected by the detecting section upon reception of the transmission data. The receiver collects the detection values for each piece of the transmission data transmitted at the same specific angle based on a manner in which data included in the received transmission data is changed in accordance with the specific angle.

A multi-antenna tire-pressure monitoring system with automatically positioning function includes tire-pressure sensors, a receiver and a central processing unit. The tire-pressure sensors are installed on tires of a vehicle, respectively, and each tire is installed with at least one tire-pressure sensor. Each tire-pressure sensor has a signal transmitting unit, the receiver includes two antennas and a built-in receiver control unit. A first phase angle and a second phase angle are formed between the signals transmitted from each tire-pressure sensor and the two antennas, the receiver control unit receives the first phase angle and the second phase angle, and the arithmetic unit calculates phase-difference parameter values, to determine the positions of the tires, the signal receiving unit built in the central processing unit receives and displays the information calculated by the arithmetic unit of the receiver, so as to complete positioning for the tires.

A method for pairing a measurement module with a wheel of a vehicle including, for each angular orientation signal associated with a specific wheel received by a computer, the steps of transmitting, by the computer, a measurement signal or a request to transmit a measurement signal to each module, measuring, by the computer or each module, a value of at least one parameter differentiating the signal, performing repetitions of the transmissions of measurement signals for each angular orientation signal received by the computer and storing values of the parameter, pairing a specific wheel with a measurement module when the values are substantially constant with a variation of less than 10% for the values, each wheel being associated with a module at the end of the method.

A tire attaching position detection system is provided which can suppress influence by an intensity of a reception signal from a tire. In the system, a sensor unit is mounted on each tire, the sensor unit has a geomagnetic sensor for acquiring data on direction change of the tire, a distortion sensor for acquiring data on number of rotations of the tire and a transmitting part for transmitting the direction change data and number of rotations data of the tire. A calculation part of a user terminal judges the attaching position of each tire based on the direction change data and the number of rotations data of each tire transmitted from the transmitting part.

The invention relates to a method for associating tire sensor modules (6.i) with a trailer vehicle (3), having at least the following steps: capturing data messages (S1) from tire sensor modules (6.i, 106.i, 206.i) in a monitoring region (8); associating the captured data messages (S1) with a tire sensor module (6.i, 106.i, 206.i); ascertaining a number of captured data messages (S1) for each detected tire sensor module; rating the captured data messages (S1) to establish whether the tire sensor modules (6.i, 106.i, 206.i) received in total up to then belong to the driver's own trailer vehicle (3) or to the adjacent trailer vehicle (103, 203); accepting the tire sensor modules (6.i) detected in the rating as affiliated to the driver's own trailer vehicle (3). According to the invention, each tire sensor module (6.i, 106.i, 206.i) detects a wheel position associated with the respective tire sensor module (6.i, 106.i, 206.i) and a trailer axle configuration, so that for an accepted tire sensor module (6.i) the wheel position and the trailer axle configuration can be taken as a basis for making a positional association on the driver's own trailer vehicle (3).

A tire mounting position detection system measures a first signal strength which is the strength of a radio signal received by a first receiver (R1) for each transmitter, measures a second signal strength which is the strength of the radio signal received by a second receiver (R2) for each transmitter, and calculates an strength ratio which is a ratio using the first signal strength and the second signal strength for each transmitter. The tire mounting position detection system detects a wheel position where a tire equipped with a transmitter is mounted on the basis of the first signal strength, the second signal strength and a strength ratio for each transmitter.