Abstract
The dynamic characteristics of turbocharged diesel engines can vary greatly with load and speed. Existing Royal Navy diesel prime movers are fitted with hydraulic speed governors which do not take account of these variations. This paper describes the start of a study into the design of an improved diesel engine governor which will produce better transient response performance throughout the speed and load range. First, input/output mathematical models are identified for different speeds using simple step and PRBS stimuli in conjunction with a number of estimation algorithms. The variation in model parameters provides adequate justification for an improved controller design and a simple digital controller is described.
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