Power management system for turbine engines
First Claim
1. A power management system for at least one turbine engine, comprising:
- indicating means for providing a mode signal indicating a selected one of a plurality of modes of operation; and
at least one engine control means for providing torque and speed commands to a corresponding turbine engine, each said engine control means including;
torque command means, responsive to said mode signal, for generating said torque commands; and
speed command means, responsive to said mode signal, for selecting said speed commands from a plurality of apriori values of engine speeds, each said value corresponding to a mode of operation.
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Accused Products
Abstract
A power management system for turbine engines includes a plurality of switches, each allowing for engine speed and engine torque to be controlled together. The switches correspond to various modes of operation of the turbine engine. When a switch is selected, a mode signal is supplied to a FADEC which, in response, issues speed and torque commands to an associated engine. The FADEC includes function generators that issue the torque commands as a function of outside ambient conditions. The torque commands are continuously updated for changing ambient conditions. Further, takeoff torque can be corrected for heating conditions. The power management system can also provide torque commands as a linear function of power lever angle.
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Citations
28 Claims
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1. A power management system for at least one turbine engine, comprising:
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indicating means for providing a mode signal indicating a selected one of a plurality of modes of operation; and at least one engine control means for providing torque and speed commands to a corresponding turbine engine, each said engine control means including; torque command means, responsive to said mode signal, for generating said torque commands; and speed command means, responsive to said mode signal, for selecting said speed commands from a plurality of apriori values of engine speeds, each said value corresponding to a mode of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 28)
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22. Apparatus for generating torque and engine speed commands for a turboprop engine in response to a mode signal indicating a selected one of a plurality of operating modes, said apparatus comprising:
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at least one function generator corresponding to each mode of flight, each function generator providing target torque requests in response to input signals indicating temperature, altitude and mach number; first selecting means, responsive to said mode signal, for selecting target torque requests from said function generators; supplying means, responsive to said first selecting means, for supplying said selected target torque requests as said torque commands; storing means for storing apriori values of engine speeds corresponding to said modes of operation; and second selecting means, responsive to said mode signal, for selecting said values from said storing means according to the mode selected, an output of said second selecting means providing said engine speed commands. - View Dependent Claims (23, 24, 25, 26, 27)
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Specification