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CE107 - Experiment

ENGINE SPEED CONTROL APPARATUS

A compact self-contained bench mounting apparatus designed to allow students at all academic levels to investigate basic and advanced principles of control including control of non-linear systems and inner-loop feedback techniques.

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Description

ENGINE SPEED CONTROL APPARATUS

The CE107 Engine Speed Control Apparatus shows the problems of regulating the speed of rotating machines, especially problems with non-linear control systems. It is a scale-model engine, driven by compressed air (not supplied) for safety. The basic purpose is to adjust a motorised valve to regulate the engine speed under load. A d.c. generator connects to the engine output and loads the engine.

More advanced experiments show:

  • Non-linearity compensation using dither signals
  • Multiple loop and minor loop feedback
  • System modelling from step response information
  • P+I control and root locus methods

The engine dynamics are similar to those of a typical ignition compression engine coupled to a dynamometer-controlled test bed. It is an ideal physical model to help engineering students at all academic levels to gain invaluable practical experience.

View the control engineering product flyer here.

Learning outcomes

  • The use of dither signals in the compensation of system non-linearities
  • The measurement of system dynamics from step response information
  • Inner loop feedback compensation
  • P+I controller design
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