公开(公告)号：US20150251770A1

公开(公告)日：2015-09-10

申请号：US14196933

申请日：2014-03-04

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Jean-Francois BISSON ,  Carmine LISIO ,  Romain CHEVALIER ,  Dave SELLORS ,  Yusuf SYED ,  Guy RIVERIN ,  Matthew CHIASSON

IPC: B64D41/00 ,  B64D31/06

CPC classification number: B64D41/00 ,  B64D31/06 ,  B64D35/08 ,  B64D2041/002 ,  F02C7/32 ,  F02C9/42 ,  F05D2270/02 ,  F05D2270/023 ,  F05D2270/304 ,  Y02T50/44 ,  Y02T50/671

Abstract: A first and second engine are connected to a drive train for driving an aircraft accessory. A gearbox is connected to a primer mover propulsor and an actuator operatively associated with a selected engine is moveable between a position in which the selected engine drivingly engages the gearbox for driving the propulsor and a position in which the selected engine disengages from the gearbox. A position signal, a status signal, and a request signal respectively indicative of a present position of the actuator, a governing state and present speed of each engine, and a request for movement of the actuator from the present position to the other position are received. If the selected engine's speed differs from a predetermined threshold, a control signal is output for causing the engine's speed to be adjusted towards the threshold. A control signal indicating that movement of the actuator is permitted is then output.

Abstract translation: 第一和第二发动机连接到用于驱动飞机附件的传动系。 齿轮箱连接到起动机推动器，并且与所选择的发动机可操作地相关联的致动器可在选择的发动机驱动地接合齿轮箱以驱动推进器的位置和所选择的发动机与变速箱脱离的位置之间移动。 分别指示致动器的当前位置，每个发动机的控制状态和当前速度的位置信号，状态信号和请求信号以及致动器从当前位置到另一位置的移动请求 。 如果所选择的发动机的速度与预定的阈值不同，则输出控制信号以使发动机的速度朝向阈值进行调节。 然后输出指示执行器的移动被允许的控制信号。