Independent thesis Advanced level (professional degree), 20 credits / 30 HE credits
This master thesis was carried out at Scania CV AB, and was proposed
in order to explore the possibilities to modernize the present test rig for low
pressure parts in the fuel systems in trucks. The rig at the present is hard
to maneuver and it is also problematic to do accurate measurements, thus
maintain decent repeatability when testing a series of parts. It is also almost
impossible to regulate flow and pressure. By integrating a computer for the
controlling of the rig and logging of data many of the problems can be solved.
During the time of the thesis a conceptual plan, hardware suggestions and
complete software was designed to meet today’s requirements for the testing of
low pressure parts. Models of flow and pressure have also been made in order
to prove what control strategy is the best one to use. The software has been
implemented and tested for flow control and is shown to work satisfactory.
2012. , 76 p.