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US 2023/0408567 A1Published application
Diagnosis of an aircraft engine control unit
AssigneeSafran Aircraft Engines
InventorsYvan Jean-René BATTUT, Gwenael Thierry ESTEVE, Mathieu Jean Jacques SANTIN
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Abstract
A method for diagnosing an engine control unit of an aircraft uses a device having an autonomous and mobile electronic diagnostic unit and connecting means for connecting the unit to an engine control unit of an aircraft. The connecting means advantageously includes a single connection cable.
Claims8
A method for diagnosing an engine control unit of an aircraft by means of a diagnostic device that includes:
- an electronic diagnostic unit that is autonomous and mobile and configured to carry out automatic tests to verify an internal electrical integrity of the control unit without simulating flight conditions of an engine to which the control unit is connected, and
- connecting means configured to connect the electronic diagnostic unit to the engine control unit of the aircraft engine,
- wherein the method is carried out while the engine is hooked to the aircraft and comprises the steps of:
- disconnecting at least one harness connecting the control unit to items of equipment,
- plugging the connecting means to the electronic diagnostic unit and to the engine control unit, in place of said at least one disconnected harness, and
- analyzing the internal electrical integrity of the control unit by carrying out automatic tests comprising:
- transmission by the unit to the control unit, through the connecting means, of adjustment parameters in internal memories of the control unit, and
- reception by the unit of responses of the control unit, through the connecting means, and the analysis of the responses to deduce a health status of the control unit.
5 more elements
Dependencies are inferred from the claim text.