请问下各位自动驾驶在双通道进近时怎么确定主从的?

khe_2006 · 发表于 2011-12-8 20:45:17

A/P在双通道进近时,手册上说两个FCC都是主FCC ,这样的话两个F/D之间怎么比较数据呢?
F/D Comparator
The flight director comparator operates during these conditions:
* Takeoff mode and below 400 feet
* Go around mode and below 400 feet
* Approach mode and below 800 feet.
During this time, the F/D comparator detects the F/D failures
which are not detected by continuous monitoring or
annunciated by a sensor valid and which could provide
erroneous information to the pilot-in-command. In each FCC,
this monitor compares local pitch and roll F/D commands with
the corresponding cross-channel F/D commands. The local F/D
only is BOV if the difference exceeds a given value.
这个时候岂不是两边都会比较出超出给定值的差值,到底断开谁?又或者是FCC都是主FCC,但里面的F/D仍然遵循先入为主的原则?
还有就是及时确定了主FCC,是不是所有的输出数据都以主FCC为准,那么这个时候要是从FCC故障了会有指示或者导致系统脱开吗?

jjr101 · 发表于 2011-12-9 00:04:05

不太了解自驾只学到皮毛

cical · 发表于 2012-2-4 23:03:28

双通道进近时两台FCC独立！所有给FCC的信号全部独立包括电源！如果低于决断高速fcc是不会脱开的！一台故障另一台继续完成工作！我记得老师是这么说的。

qingfeng_0365 · 发表于 2013-5-30 10:27:54

同求答案

帐号		自动登录	找回密码
密码			立即注册

[22自动飞行] 请问下各位自动驾驶在双通道进近时怎么确定主从的?

中国民航大学

南航

实名认证