  Different hardware platforms and their associated real time operating systems
that can be used in an educational laboratory for illustrating engine
electronic control unit hardware in the loop testing are presented and compared
in this paper. A Matlab graphical user interface prepared for generating
synthetic crank and camshaft angular position sensor signals to be fed to the
engine electronic control unit during hardware-in-the-loop testing is
introduced. This graphical user interface is used to generate faulty sensor
signals to check the response of the engine electronic control unit during
hardware-in-the-loop simulation. Examples of faulty signals that can be
generated with the graphical user interface are illustrated.
