公开(公告)号：EP4008631A1

公开(公告)日：2022-06-08

申请号：EP21209428.8

申请日：2021-11-19

申请人： Textron Innovations Inc.

发明人： DUGRE, Alexis ,  BIRON, Guillaume ,  OUELLET, Marc

IPC分类号： B64C27/82 ,  B64C9/00

摘要： A yaw control system (24; 102; 202, 250; 302; 402; 502; 602) for a helicopter (10; 100; 200, 264; 300; 400; 500; 600) having a tailboom (20; 106; 206, 268; 306; 406; 506; 606) and a forward flight mode includes a surface coupled to the tailboom (20; 106; 206, 268; 306; 406; 506; 606), one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) coupled to the surface, a flight control computer (56; 230; 334; 426; 626) implementing a yaw controller (66; 228) having a rudder control module (234) and a tail rotor rotational speed reduction module (232) and a rudder (222) rotatably coupled to the surface. The tail rotor rotational speed reduction module (232) is configured to selectively switch the one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) into a rotational speed reduction mode in the helicopter (10; 100; 200, 264; 300; 400; 500; 600) forward flight mode. The rudder control module (234) is configured to rotate the rudder (222) in the rotational speed reduction mode of the one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) to control the yaw of the helicopter (10; 100; 200, 264; 300; 400; 500; 600).

公开(公告)号：EP4008630A1

公开(公告)日：2022-06-08

申请号：EP21209426.2

申请日：2021-11-19

申请人： Textron Innovations Inc.

发明人： OUELLET, Marc ,  BIRON, Guillaume ,  DUGRE, Alexis ,  BUSTAMANTE, Marc ,  KUANG, Chen

IPC分类号： B64C27/82 ,  B64D35/02 ,  B64D27/24 ,  H02J4/00 ,  B64D27/02

摘要： An electrically distributed yaw control system (24; 102; 202, 250; 302; 402; 502; 602) for a helicopter (10; 100; 200, 264; 300; 400; 500; 600) having a tailboom (20; 106; 206, 268; 306; 406; 506; 606) and a power system (58; 522) includes one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) including a motor (42b, 44b, 46b, 48b; 612a, 614a, 616a, 618a) rotatably coupled to the tailboom (20; 106; 206, 268; 306; 406; 506; 606) and a power distribution unit (534, 564). The power distribution unit (534, 564) includes a power management monitoring module (72a; 538) configured to monitor one or more flight parameters of the helicopter (10; 100; 200, 264; 300; 400; 500; 600) and a power management command module (72b; 540) configured to allocate power between the power system (58; 522) and the one or more tail rotor motors (42b, 44b, 46b, 48b; 612a, 614a, 616a, 618a) based on the one or more flight parameters of the helicopter (10; 100; 200, 264; 300; 400; 500; 600).

公开(公告)号：EP4008629A1

公开(公告)日：2022-06-08

申请号：EP21209425.4

申请日：2021-11-19

申请人： Textron Innovations Inc.

发明人： BUSTAMANTE, Marc ,  OUELLET, Marc ,  DUGRE, Alexis ,  KUANG, Chen ,  BIRON, Guillaume

IPC分类号： B64C27/82 ,  B64C27/06

摘要： A yaw control system (24; 102; 202, 250; 302; 402; 502; 602) for a helicopter (10; 100; 200, 264; 300; 400; 500; 600) having a tailboom includes one or more tail rotors rotatably coupled to the tailboom (20; 106; 206, 268; 306; 406; 506; 606) and a quiet mode controller (68; 240; 336). The quiet mode controller (68; 240; 336) includes a noise monitoring module (68a; 338) configured to monitor one or more flight parameters of the helicopter (10; 100; 200, 264; 300; 400; 500; 600) and a quiet mode command module (68b; 340) configured to selectively switch the one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) to a quiet mode based on the one or more flight parameters. The quiet mode command module (68b; 340) is also configured to modify one or more operating parameters of the one or more tail rotors (42, 44, 46, 48; 112, 114, 116, 118; 136, 142, 150, 162, 172, 180, 188; 212, 214, 216, 218; 312, 314, 316, 318; 412, 414, 416, 418; 512, 514, 516, 518; 612, 614, 616, 618) in the quiet mode to reduce noise emitted by the helicopter (10; 100; 200, 264; 300; 400; 500; 600).