Engine Management And Monitoring - MTU 12V4000Gx5S Series Operating Instructions Manual

4.2.12 Engine management and monitoring

1 Customer controller
2 Power supply 24 V DC
3 SmartConnect
Engine management and monitoring
The Engine Monitoring Unit permanently evaluates the engine operating values. In the event of limit viola-
tions, engine protection measures are initiated. This ensures operational availability and long service life of
the engine.
The engine management system controls e.g. the injection timing, injection duration and the resulting injec-
tion quantity for each ignition and for each cylinder. It controls, among other thing, the speed and high-pres-
sure fuel. The engine management system ensures low consumption, minimum exhaust gas emission and
maximum power.
Key new features for the engines in this series include the Engine Control Unit ECU 9 (Engine Control Unit 9).
Engine Control Unit ECU 9
The engine control unit is the central control and monitoring unit of the engine.
A robust and vibration-resistant design allow the unit to be mounted directly on the engine.
64 | Series 4000 Engines | MS15065/01E 2019-01
4 Data and signals
5 EIL
6 ECU 9
7 Engine sensor connection
P Plant
E Electronic engine manage-
ment system