초록 ▼

A control system for a gas-turbine engine has two parallel control units, either one of which can be switched to supply control signals to the engine in response to input signals, such as from the pilot\s control lever and from various sensors. Each unit has a limiter that limits the fuel supply to

A control system for a gas-turbine engine has two parallel control units, either one of which can be switched to supply control signals to the engine in response to input signals, such as from the pilot\s control lever and from various sensors. Each unit has a limiter that limits the fuel supply to the engine if the engine speed approaches or exceeds a predetermined maximum. A monitor unit in each control unit detects when the limiter has assumed control of the engine for more than a predetermined time, and switches the system to control by the other control unit. The predetermined engine speed may be different for different settings of the pilot\s control lever. The monitor unit in such an arrangement, may receive signals in respect of the acceleration and deceleration of the engine and switch to the other control unit only when the speed is outside the predetermined speed for the pilot lever setting, and when the acceleration or deceleration is not such as to bring the speed back within the predetermined speed.

대표청구항 ▼

An engine control system comprising: first and second control means; means for supplying input signals to said first and second control means; means for supplying output signals from one of said first and second control means to control operation of an engine in response to said input signals; relay

An engine control system comprising: first and second control means; means for supplying input signals to said first and second control means; means for supplying output signals from one of said first and second control means to control operation of an engine in response to said input signals; relay means connected intermediate said first and second control means and said engine, said relay means being operable to supply output signals to the engine from either said first control means or said second control means; limiter means; means for supplying signals representative of the actual performance of the engine to said limiter means independently of said first or second control means, the limiter means being operable to override control of said engine by said first or second control means, and said limiter means itself controlling operation of said engine not to exceed predetermined operational parameters, when the one of said control means then controlling the engine causes said engine to exceed said predetermined operational parameters; monitor means having timer means therein, said monitor means providing an output response signal when the engine has been operated at said predetermined operational parameters for more than a predetermined period of time; and means supplying said output response signal from said monitor means to said relay means to disconnect the one of said control means which is producing the limited control of said engine and to connect instead the other of said control means to said engine.