METHOD FOR SYNCHRONISING THE ENGINES OF AN AIRPLANE WITH DUAL INTERMEDIATE STATE

摘要

A method for synchronizing the engines of an airplane according to one activation logic having a deactivated state (20), an armed state (22), and one activated state (16), in which:
the switching (36) of the synchronisation from the armed state to the activated state is carried out via a first and then a second successive intermediate state (38, 39) of the activation logic,every instance of the activation logic switching from the second intermediate state (39) to the activated state involves the following:
taking into consideration, on each engine, the activation state of the synchronisation,and exchanging said data between the engines,the switching of the activation logic of one of the engines to the activated state requires that the safety and activation conditions of the other engine are all met.if one of the engines enters the deactivated state, the other engine does so as well; andfor each engine, the switching (36, 42) of the synchronisation from the armed state to the first and then to the second intermediate state takes place automatically when a first portion and then a second portion of the safety and/or activation conditions are met.

主权项

1. A method for synchronising there between engines of an airplane, using at least one activation logic per engine, the activation being intended to check the safety and/or activation conditions in order to apply the synchronisation, with each activation logic defining and switching between at least a deactivated state, an armed state, and an activated state, with the method comprising, per engine:
the switching of the activation logic from the deactivated state to the armed state when an activation order is given by the pilot of the airplane; the periodical checking of the safety and/or activation conditions relative to said states, in order to define whether said conditions are met or not met, the switching of the activation logic from the armed state to the activated state when some of the safety and/or activation conditions are met; and the switching of the activation logic from the activated state or the armed state to the deactivated state when a deactivation order is given by the pilot or when some of said safety conditions are not met, wherein: the switching of the activation logic from the armed state to the activated state is carried out via a first and then a second successive intermediate state of the activation logic, every instance of the activation logic switching from the second intermediate state to the activated state involves exchanging such data between the engines carried out by an exchange digital link, so that: the switching of the activation logic of one of the engines to the activated state requires that the safety and activation conditions applied to the other engine(s) are all met, and if the activation logic of one of the engines switches to the deactivated state, the activation logic of the other engine(s) automatically does so as well; and for each engine, the switching of the activation logic from the armed state to the first and then to the second intermediate state takes place automatically when a first portion and then a second portion, different from the first one, of the safety and/or activation conditions are met.