초록 ▼

The flow volume of used air to be discharged from an aircraft cabin is controlled in a valve control system in which each outflow valve has at least two slave controllers responsive to any one of at least two master controllers in a closed loop control system. For this purpose the slave controllers

The flow volume of used air to be discharged from an aircraft cabin is controlled in a valve control system in which each outflow valve has at least two slave controllers responsive to any one of at least two master controllers in a closed loop control system. For this purpose the slave controllers and the master controllers are interconnected by an intermeshed conductor network including a plurality of conductor sections interconnected by electrical conductor junctions or optical conductor couplers forming interfaces between the conductor sections to provide a redundant number of communication paths to keep the system operable even if failures or faults occur.

대표청구항 ▼

[ What is claimed is:] [1.] A closed loop system for controlling an air discharge out of an aircraft body having a body wall, said system comprising least one air discharge valve for passing used air through said body wall, at least two master controllers for each air discharge valve, at least two s

[ What is claimed is:] [1.] A closed loop system for controlling an air discharge out of an aircraft body having a body wall, said system comprising least one air discharge valve for passing used air through said body wall, at least two master controllers for each air discharge valve, at least two slave valve controllers for controlling the operation of said at least one air discharge valve in response to any one of said at least two master controllers, and a ring circuit (3A to 3H) forming an information transmission loop interconnecting said master controllers with said slave valve controllers for transmitting control information from any one of said master controllers to any one of said slave valve controllers and for transmitting feedback information from any one of said slave valve controllers to any one of said master controllers, said ring circuit establishing under all operating conditions the shortest possible conductor path between any one of said master controllers and any one of said slave valve controllers for passing signals from any one of said master controllers to any one of said slave valve controllers and vice versa through said shortest possible conductor path.