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Digital Controller Improves Power and Flexibility of Gas Turbine Driven M1A1 Tank PUBLIC ACCESS

[+] Author Affiliations
J. Ericksen, E. Godere, A. Wright

TEXTRON Lycoming, Stratford, CT

Paper No. 91-GT-295, pp. V005T15A007; 6 pages
doi:10.1115/91-GT-295
From:
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7902-3
  • Copyright © 1991 by ASME

abstract

This paper describes the design and development of a Digital Electronic Control Unit (DECU) that replaces the existing Analog Electronic Control Unit (AECU) on the M1A1 battle tank’s TEXTRON Lycoming AGT1500 gas turbine engine. This program marks the first application of a digital control on a vehicular gas turbine engine. The DECU preserves all functions of the AECU and is interchangeable, while allowing engine performance improvements, such as 20 percent fuel savings at idle. Diagnostic capabilities, using existing control sensors, were added to identify 90 percent of failed Line Replaceable Units. Controls strategies to achieve these results, such as adaptive routines, and some of the illustrative differences between Analog and Digital control implementations encountered in this application, are discussed.

Copyright © 1991 by ASME
This article is only available in the PDF format.

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