Development of an Energy Management PFD using Total Energy Control Principles
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Abstract
Navigation accidents can be classified into a number of root causes. Lack of energy awareness is identified as a systematic cause of aviation incidents and accidents. A new format of the Primary Flight Display has been developed to increase the pilots awareness of the aircraft's energy state. In this display format, energy relations between speed and altitude are directly visualized, together with the relations between their derivatives: acceleration and vertical speed. It is hypothesized that the method of visualization described in this paper also allows decoupling of the control actions for a simultaneous tracking of flight path and speed targets. To provide the possibility for accurate anticipatory control, quickened symbology is added to the display format. The level of detail of the conceptual design was increased by means of a participative design approach. This paper describes the design iterations that resulted in the current format.