Development and technical feature of integrated helicopter/engine control.

This essay, introduces the background to produce the integrated helicopter/engine control (IHEC), looks back the development process, and makes conclusion and analysis to the present research situation. IHEC is mainly composed of the disturbance rejection control and the performance seeking control, where the former is realized based on some advanced control methods, such as torque anticipatory control, adaptive fuel control, active disturbances rejection control, predictive control and so on, and the latter includes three optimal control modes, i.e. the minimum fuel-consumption mode, the maximum power mode and the minimum turbine temperature mode. The design scheme selection, technical feature and research trend of the above IHEC techniques are discussed in detail. At last, some key issues are proposed for the research and development of IHEC. [ABSTRACT FROM AUTHOR]