Browse Publications Technical Papers 870777
1987-04-01

Microprocessor Control for Diesel Powered Equipment 870777

This paper describes the design of a new microprocessor control system suitable for the control of a wide variety of diesel powered equipment. An application for controlling a diesel engine and centrifugal compressor for aircraft ground support equipment is discussed. The equipment supplies 400 Hz electrical power and compressed air for turbine engine starting and aircraft air conditioning.
The Digital Electronic Control Unit (DECU) has a dual 16 bit microprocessor capability with a built in power supply, EMI filters and analog interface circuits. The DECU controls the engine fuel control valve, compressor variable inlet guide vanes, compressor variable angle diffuser position and air dump valve.
The DECU can be configured to monitor up to .32 analog input channels and 32 digital channels. Four analog output, 32 digital output, and two RS-423 serial channels can be installed. EEPROM memory is used to store calibration data and to record fault history.

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