摘要:
An inspection system for use in measuring several vehicle conditions in a high volume vehicle inspection line. A plurality of sensors are installed on a vehicle for measuring a plurality of vehicle conditions to assist in the rapid evaluation of critical vehicle conditions or parameters. At least one tool is positioned along a vehicle path in a monitoring station. As the vehicle passes through the monitoring station, the tool received electronic data from the plurality of sensors and displays one or more signals to alert an inspector of acceptable or unacceptable vehicle conditions. In one example, the plurality of sensors includes tire pressure monitoring system (TPMS) data from the vehicle tires to rapidly assess the condition of the tire air pressure and other monitored tire conditions.
摘要:
A device (100) for monitoring the rolling wear of a tread (1), said tread (1) comprising at least one inner cavity (3) intended to form a recess opening on a running surface (10) after predefined partial wear of the tread, said tread (1) comprising a wear limit corresponding to a maximum thickness of material to be worn, said device (100) comprising a measurement well (101) opening on the running surface (10), said measurement well (101) having a bottom formed from a first part (1011) and a second part (1012) offset in depth one relative to the other, said two parts of the bottom being located at different distances relative to the running surface in the new state.
摘要:
A tire position determination system is provided with: a plurality of tire air pressure transmitters (4) respectively attached to a plurality of tires (2) and each capable of transmitting a first radio signal including air pressure data and a tire ID; a plurality of axle rotation detection units (19) respectively attached to a plurality of axles (18) and each generating axle rotation information by detecting rotation of corresponding one of the plurality of axles; and a receiver (12) mounted to a vehicle body and capable of receiving the first radio signal transmitted from each of the plurality of tire air pressure transmitters (4). Each of the plurality of tire air pressure transmitters (4) includes a specific position detection unit (19) capable of detecting the arrival of the tire air pressure transmitter (4) at a specific position on a trajectory of rotation of the tire, and a transmission control unit (20) that, based on a result of detection by the specific position detection unit (19), generates a second radio signal including data indicating the arrival of the tire air pressure transmitter (4) at the specific position on the trajectory of rotation of the tire and the ID, and that causes the second radio signal to be transmitted from the tire air pressure transmitter (4). The receiver (12) includes an axle rotation information acquisition unit (23) that acquires the axle rotation information from each of the plurality of axle rotation detection units (19) each time the second radio signal is received by the receiver, and a position determination unit (24) that determines a tire position of the plurality of tires (2) by calculating a distribution of the axle rotation information for each ID by gathering statistics about the axle rotation information for each ID and by identifying the ID of the tire that rotates in synchronism with the axle rotation information about each of the plurality of axles (18) on the basis of the distribution.
摘要:
A tire tracking system and method for tracking travel mileage experienced by a vehicle tire is disclosed. The system comprises a vehicle supported by at least one vehicle tire mounted to a wheel hub; a plurality of tire-based sensors affixed to the tire operative to generate a plurality of tire-specific operating condition measurements; a rolling radius estimation model operative to generate a compensated tire rolling radius based on the tire-specific operating condition measurements; and a vehicle speed estimator operative to generate a vehicle speed estimation based on the compensated tire rolling radius.
摘要:
A tire wear state estimation system is disclosed. The system comprises a tire (12, 14, 16, 18) supporting a vehicle (10); a vehicle-based sensor (20) for measuring a plurality of distance intervals travelled by the tire (12, 14, 16, 18) during vehicle operation at different vehicle speeds; a vehicle-based tire revolution counter for counting a tire revolution count within each of the plurality of distance intervals; a vehicle-based speed sensor for determining the vehicle ground speed during the plurality of distance intervals travelled by the tire (12, 14, 16, 18); a slow-speed interval selector operative to select at least one slow-speed distance interval from the plurality of distance intervals operatively based on the vehicle (10) travelling at a ground speed less than a pre-selected threshold level; an effective radius estimator for estimating a slow-speed effective radius of the tire (12, 14, 16, 18) during the at least one slow-speed distance interval from the tire revolution count and the distance travelled by the tire during the at least one slow-speed distance interval; and a tire wear-state estimator operative to estimate a tire wear-state from the estimated slow-speed effective radius of the tire (12, 14, 16, 18) during the at least one slow-speed distance interval.
摘要:
A tire position determination system is provided with: a plurality of tire air pressure transmitters (4) respectively attached to a plurality of tires (2) and each capable of transmitting a first radio signal including air pressure data and a tire ID; a plurality of axle rotation detection units (19) respectively attached to a plurality of axles (18) and each generating axle rotation information by detecting rotation of corresponding one of the plurality of axles; and a receiver (12) mounted to a vehicle body and capable of receiving the first radio signal transmitted from each of the plurality of tire air pressure transmitters (4). Each of the plurality of tire air pressure transmitters (4) includes a specific position detection unit (19) capable of detecting the arrival of the tire air pressure transmitter (4) at a specific position on a trajectory of rotation of the tire, and a transmission control unit (20) that, based on a result of detection by the specific position detection unit (19), generates a second radio signal including data indicating the arrival of the tire air pressure transmitter (4) at the specific position on the trajectory of rotation of the tire and the ID, and that causes the second radio signal to be transmitted from the tire air pressure transmitter (4). The receiver (12) includes an axle rotation information acquisition unit (23) that acquires the axle rotation information from each of the plurality of axle rotation detection units (19) each time the second radio signal is received by the receiver, and a position determination unit (24) that determines a tire position of the plurality of tires (2) by calculating a distribution of the axle rotation information for each ID by gathering statistics about the axle rotation information for each ID and by identifying the ID of the tire that rotates in synchronism with the axle rotation information about each of the plurality of axles (18) on the basis of the distribution.
摘要:
The present disclosure includes a combination sensor (106) and pressure relief valve. The combination sensor (106) and valve may be used with existing aircraft wheel systems (100). Wheel systems (100) utilizing the combination sensor (106) and valve are also disclosed.