Patent ID: 9081372
Filing Date: 2015-07-14
Classification: B64C,G05B

Abstract:
1. A flight control system for an aircraft to control a plurality of actuators adapted for actuating control surfaces of the aircraft based on information supplied by one or more of piloting members and sensors of the aircraft, comprising: a primary control system to control a first set of control surface actuators of the aircraft, the primary control system including a first primary computer and a second primary computer, each said primary computer having the same structure, with generic computation modules, and being respectively powered by a first primary energy source and a second primary energy source; and a secondary control system to control a second set of control surface actuators of the aircraft, different from the first set of control surface actuators, the secondary control system including at least one secondary computer and a back-up computer, each said secondary computer having specific computation modules with an architecture specific to flight control computations and being powered by a secondary energy source, wherein the primary control system is independent from the secondary control system such that failure of the primary control system does not cause failure of the secondary control system and such that failure of the secondary control system does not cause failure of the primary control system, wherein the primary and secondary energy sources are independent from each other and are of different type of energy generating principle, wherein a first network is associated with the primary control system and a second network is associated with the secondary control system, the first network having a first protocol and the second network having a second protocol different from the first protocol, and the first network being independent from the second network, wherein the first and second primary energy sources are independent from each other, wherein each said secondary computer and the back-up computer of the secondary control system are powered by the secondary energy source and share the second set of actuators, wherein the primary control system is configured to control the first set of control surface actuators and not the second set of control surface actuators, and wherein the secondary control system is configured to control the second set of control surface actuators and not the first set of control surface actuators.