Monitoring the fuel supply cutoff valve for an engine

Abstract

Method of testing an engine fuel supply cutoff valve, characterised in that it comprises steps to: detect (E1) a fuel supply cutoff command, command (E3) to close the fuel supply cutoff valve, command (E4) to hold the fuel metering valve in the open position for a predetermined time, command (E5) to close the fuel metering valve after the predetermined time, measure (E6) an engine operating parameter during performance of the previous steps, compare (E7) the measured parameter with a predetermined threshold, so as to determine whether or not the engine operating parameter corresponds to an engine fuel supply cutoff by normal operation of the fuel supply cutoff valve.

Dependencies are inferred from the claim text.