US 12,296,964 B2
Ice protection backup temperature control logic
Richard J. Carpino, II, Canton, OH (US)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by GOODRICH CORPORATION, Charlotte, NC (US)
Filed on Oct. 19, 2022, as Appl. No. 17/969,471.
Prior Publication US 2024/0132219 A1, Apr. 25, 2024
Prior Publication US 2024/0228046 A9, Jul. 11, 2024
Int. Cl. B64D 15/22 (2006.01); B64D 15/12 (2006.01); B64D 33/02 (2006.01)
CPC B64D 15/22 (2013.01) [B64D 15/12 (2013.01); B64D 33/02 (2013.01); B64D 2033/0233 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A multi-zone anti-icing system for an aircraft part, the system comprising:
at least three or more part zones configured to divide a surface area of the aircraft part, wherein an anti-icing of each part zone is controlled independently;
a heater associated with at least one part zone of the aircraft part;
a resistive temperature detector (RTD) independently associated with each part zone of the at least three or more part zones of the aircraft part configured to generate temperature data associated with each respective part zone; and
a controller coupled to the heater and configured to implement an algorithm of a control logic for an anti-icing operation, the algorithm using a pre-set temperature difference threshold between at least two of the at least three or more part zones, a pre-set power duty cycle difference threshold between the at least two of the at least three or more part zones, and feedback temperature data from at least two RTDs each associated with a different part zone of the at least three or more part zones, and
wherein the feedback temperature data is compared to the pre-set temperature difference and the pre-set power duty cycle difference by the controller via the algorithm to assess reliability of the temperature data generated by at least one RTD of the at least two RTDs to determine whether a set of shut-down conditions is met for the at least one RTD.