US 12,269,304 B2
Determining a status of a tyre monitoring device
Andrew Bill, Bristol (GB); Alessandro Fichera, Villars-sur-Glane (CH); and Kevin Stanley-Adams, Villars-sur-Glâne (CH)
Assigned to AIRBUS OPERATIONS LIMITED, Bristol (GB); and MEGGITT SA, Villars-sur-Glane (CH)
Filed by AIRBUS OPERATIONS LIMITED, Bristol (GB); and MEGGITT SA, Villars-sur-Glâne (CH)
Filed on Dec. 15, 2021, as Appl. No. 17/551,283.
Claims priority of application No. 2019794 (GB), filed on Dec. 15, 2020.
Prior Publication US 2022/0185041 A1, Jun. 16, 2022
Int. Cl. B60C 23/04 (2006.01); G05B 23/02 (2006.01)
CPC B60C 23/0481 (2013.01) [B60C 23/0454 (2013.01); B60C 23/0479 (2013.01); G05B 23/0283 (2013.01); B60C 2200/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of determining a status of a tire monitoring device installed on a wheel of an aircraft comprising a power supply, the method comprising:
determining a value indicative of consumption of the power supply comprising:
determining, from a plurality of possible modes of operations, a mode of operation of the tire monitoring device,
assigning a consumption value based on the determined mode of operation,
measuring and integrating a flow of current out of the power supply, and
modifying a previously determined value indicative of capacity of the power supply based on the measured and integrated flow of current out of the power supply;
determining an estimated remaining service lifetime of the tire monitoring device based on the value indicative of consumption of the power supply;
comparing the estimated remaining service lifetime of the tire monitoring device to a predetermined tire replacement cycle for a tire associated with a wheel of an aircraft on which the tire monitoring device is installed;
determining that the estimated remaining service lifetime of the tire monitoring device expires between a scheduled time for a first tire change and a scheduled time for a second tire change of the predetermined tire replacement cycle; and
providing an indication that the tire monitoring device is to be replaced at the time of the first tire change.