UWE Bristol Engineering showcase 2015

Arnoldas Baublys
MEng Motorsport Engineering
Project Supervisor
Dr Changho Yang
Turbo-diesel fuel injection map development
1 2
Project summary
The study has been carried out to create an
ignition timing map for turbo-diesel engine. A
map has been developed during extensive
use of computer simulation software. The
trials showed possible usage of specific
engine map. Engine model was created using
computer software and testing confirmed
viability of the map.
3
Injection timing
advance, deg
18
16
14
12
10
8
6
4
2
0
Injection Timing Map
2000
1500
1000
0 100 200
2500
3000
3500
4000
Engine speed,
rpm
1. V6 turbo diesel engine model was created using Ricardo wave
software. A power sensor along with in-cylinder pressure and
turbo boost was attached to measure different parameters
2. Testing of different injection timings to determine engine
behavior was done. A multiple amount of runs were performed
to determine best option. In this example -30 degrees would
produce knocking effect
3. Resulting injection timing map was made after comparing few
hundred graphs and stats at each engine load and speed. The
result shows that the higher engine speed the more advanced
timing is necessary to compensate for it.
Project Objectives
The main aim of this study is to create fuel
injection timing map. Establishing deep
understanding of how engine performance
can be changed by manipulating ignition
timings. Study goal is create fully working
map with highest engine power output while
still meeting high emission regulations
standards
Project Conclusion
A 3D fuel injection timing map has been
developed and tested using computer
simulation software Ricardo wave. In addition
exhaust gas recirculation system was
introduced to reduce emissions. Advancing
engine timing produces more power but
demands on the components also increase.
Engine Load, Nm