US 12,109,853 B2
Tyre monitoring
Michael Robertson, Bristol (GB); and Mark Andrew Johnson, Bristol (GB)
Assigned to AIRBUS OPERATIONS LIMITED, Bristol (GB)
Appl. No. 17/440,318
Filed by AIRBUS OPERATIONS LIMITED, Bristol (GB)
PCT Filed Jul. 16, 2020, PCT No. PCT/EP2020/070192
§ 371(c)(1), (2) Date Sep. 17, 2021,
PCT Pub. No. WO2021/018620, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 1910868 (GB), filed on Jul. 30, 2019.
Prior Publication US 2022/0185042 A1, Jun. 16, 2022
Int. Cl. B60C 23/04 (2006.01)
CPC B60C 23/0488 (2013.01) [B60C 2200/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus for monitoring the condition of a pneumatic tire, the apparatus comprising:
at least one pressure sensor configured to measure an internal pressure within the tire;
at least one speed sensor configured to measure a rotational speed of the tire; and
a controller configured to receive data from the at least one pressure sensor and the at least one speed sensor, and output indications related to a condition of the tire;
wherein the controller is configured to determine the output indications by:
tracking the internal pressure with respect to time during use of the tire;
identifying at least one change in the internal tire pressure in a time interval between a first reference time and a second reference time, the first and second reference times corresponding to points at which the at least one speed sensor indicates different rotational speeds of the tire; and
monitoring a pressure change in the tire as a function of rotational speed of the tire to provide an indicator of tire condition.