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CWS

CWS叫做驾驶盘模式,全写为control wheel steering

就是通过驾驶盘来操作飞机以及保持飞机的当前姿态,他与人工驾驶的区别是,驾驶盘的操作信号不直接传向操作面,而是通过FCC来控制操作面,可以理解为是一种电传操作。

 

以下来自BOEING的AMM 手册

Autopilot Commands
The autopilot can be in the command (CMD) or the control wheel steering (CWS) mode. In the CMD mode, the FCC calculates the commands which go to the autopilot actuators.The actuators cause the inputs to the power control units (PCU)to move which control the ailerons and elevator. In the CWS
mode, force transducers under the control columns sense control wheel and control column forces from the pilots and send these signals to the FCC. The FCC sends the commands to the autopilot actuators to control the ailerons and elevator. The FCC also sends commands to the stabilizer trim electric
actuator to trim the stabilizer.
The autopilot mode shows on the common display system (CDS) above the attitude indicator. To disengage the autopilot,the pilot pushes the disengage switches on the control wheel. When the autopilot disengages, an aural warning is heard from the aural warning module and the red A/P light on the autoflight
status annunciator (ASA) flashes. The ASA warning and aural alert can be reset if the pilot pushes the red A/P annunciator on the ASA or pushes the A/P disconnect switch.

 

 

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