Abstract:
A tire wear state estimation system estimates forces and sliding velocity generated in a tire contact patch, determines frictional energy from the tire force and sliding velocity, and generates an estimate of tire wear state based upon the frictional work done by the tire. A tire wear estimate, pursuant to the system and methodology, is made by determining the amount of frictional work performed by the tire through the integrated use of tire-mounted, GPS sourced, and vehicle-mounted sensor information.
Abstract:
A method for locating the wheels of a vehicle equipped with an electronic module, according to which the transmission, by transmitting antennas mounted on the vehicle, of a predetermined number of identification request signals is commanded, and the values representative of the rates of reception of these signals by the electronic modules are analyzed. According to the method, centroid calculations are performed to determine, for each wheel position, the “ideal position” {right arrow over (LAj)} for reception of the transmitting antennas covering the wheel position (a reception rate of 100%), and, for each electronic module, the “actual position” of the latter {right arrow over (WUi)} relative to the position {right arrow over (TAi)} of the transmitting antennas fitted to the vehicle, using as the criterion for determining this “actual position” {right arrow over (WUi)} the rate of reception, by the electronic module, of the signals transmitted by each transmitting antenna.
Abstract:
The invention relates to a method of utilizing a system for monitoring the temperature and/or the pressure of the tires of a vehicle (C) comprising one or more rolling sub-assemblies (100, 200), noteworthy in that it consists in installing on each rolling sub-assembly (100, 200), an additional storage and communication module (300′) comprising: a data storage means in which are recorded, during a learning phase, the set of unique identifiers and the locations of each measurement and communication pick-up module (300) of said rolling sub-assembly (100, 200), a means of communication at least with the reception and transmission modules (400) and installed on the rolling sub-assembly, a means of storing energy for the purposes of powering the communication means, so that said storage and communication module (300′) can retain in memory the set of identifiers and associated locations of the same sub-assembly (100, 200) and can communicate it instantaneously. The invention also relates to the device allowing the method to be implemented. Applications: utilization of a system for monitoring tires.
Abstract:
A tire abnormality management system assigns work to each of a plurality of vehicles and manages an abnormal state of a tire mounted on each of the vehicles that perform the assigned work. The tire abnormality management system includes: a tire sensor configured to detect a tire pressure and/or a tire temperature of each of the vehicles; a grouping processing unit configured to group vehicles, in which a tire load of the work assigned to each of the vehicles is within a predetermined range, into a vehicle group; and a tire abnormal vehicle identifying unit configured to identify, among the grouped vehicles, a vehicle with an abnormal tire based on the tire pressure or the tire temperature detected by the tire sensor.
Abstract:
At a portable low frequency (LF) tool, a sensor reading of a tire pressure is received. A determination is made of a barometric pressure adjustment based upon received inputs. The adjustment is applied to the reading of the tire pressure to form an adjusted pressure. The adjusted pressure is presented to a user at the portable LF tool
Abstract:
Embodiments relate to a Radio Frequency IDentification (RFID)-tag, a Tire Pressure Monitoring System (TPMS) device, a tire, a receiver device and a method for providing information related to identification of a tire. The RFID-tag is configured to provide information related to the tire identification and it is configured to be powered by the TPMS device. The RFID-tag comprises a memory module configured to store the information related to the tire identification and a transmitter module configured to transmit the information related to the tire identification to a receiver device of a vehicle or a service station. The TPMS device comprises a coupling element configured to provide Radio Frequency power to the RFID-tag, for providing information related to tire identification.
Abstract:
A module includes a first partial housing and a second partial housing, wherein the first partial housing and the second partial housing together form a recess, a circuit board disposed in the recess; and an encapsulation mass, which closes the recess. A material from which the first partial housing is manufactured and a material from which the second partial housing is manufactured have a difference in thermal expansion coefficients that is at most 10% of the largest value of the two thermal expansion coefficients, the first partial housing includes a sealing structure and the second partial housing includes a counter-sealing structure, and at least one of the sealing structure and the counter-sealing structure is configured to extend into the other of the sealing structure and the counter-sealing structure.
Abstract:
A tire pressure monitoring system for wheeled vehicles is presented that uses a vehicle computer, a vehicle position sensor, a tire pressure sensor, and ambient temperature readings to determine whether the vehicle has remained stationary for a predetermined time period before determining and reporting cold tire pressure.
Abstract:
Provided are an apparatus and method for transmitting information on a location of a tire with information on pressure of the tire. The present disclosure provides logic for calculating rotation angles among a plurality of magnetic field samples obtained from a geomagnetic sensor, calculating rotational directions, and determining the left/right locations of the tire on the basis of the number of times of accumulation of the rotational directions.
Abstract:
Embodiments relate to a Radio Frequency IDentification (RFID)-tag, a Tire Pressure Monitoring System (TPMS) device, a tire, a receiver device and a method for providing information related to identification of a tire. The RFID-tag is configured to provide information related to the tire identification and it is configured to be powered by the TPMS device. The RFID-tag comprises a memory module configured to store the information related to the tire identification and a transmitter module configured to transmit the information related to the tire identification to a receiver device of a vehicle or a service station. The TPMS device comprises a coupling element configured to provide Radio Frequency power to the RFID-tag, for providing information related to tire identification.