MAN B&W 16.01
Page 1 of 10
MAN Diesel
MAN B&W ME/MEC/-GI engines 198 48 476.9
The Engine Control System (ECS) for the ME en-
gine is prepared for conventional remote control,
having an interface to the Bridge Control system
and the Local Operating Panel (LOP).
A Multi-Purpose Controller (MPC) is applied as
control unit for specific tasks described below:
ACU, CCU, CWCU, ECU, SCU and EICU. Except
for the CCU, the control units are all built on the
same identical piece of hardware and differ only
in the software installed. For the CCU on ME and
ME-C only, a downsized and cost-optimised con-
troller is applied, the MPC10.
The layout of the Engine Control System is shown
in Figs. 16.01.01a and b, the mechanicalhydraulic
system is shown in Figs. 16.01.02a and b, and the
pneumatic system, shown in Fig. 16.01.03.
The ME system has a high level of redundancy.
It has been a requirement to its design that no
single failure related to the system may cause the
engine to stop. In most cases, a single failure will
not affect the performance or power availability, or
only partly do so by activating a slow down.
It should be noted that any controller could be
replaced without stopping the engine, which will
revert to normal operation immediately after the
replacement of the defective unit.
Main Operating Panel
Two redundant main operating panel (MOP)
screens are available for the engineer to carry out
engine commands, adjust the engine parameters,
select the running modes, and observe the sta-
tus of the control system. Both MOP screens are
located in the Engine Control Room (ECR), one
serving as back-up unit in case of failure or to be
used simultaneously, if preferred.
Both MOP screens consist of a marine approved
Personal Computer with a touch screen and
pointing device as shown in Fig. 5.16.02.
Engine Control Unit
For redundancy purposes, the control system
comprises two engine control units (ECU) operat-
ing in parallel and performing the same task, one
being a hot standby for the other. If one of the
ECUs fail, the other unit will take over the control
without any interruption.
The ECUs perform such tasks as:
• Speed governor functions, start/stop sequenc-
es, timing of fuel injection, timing of exhaust
valve activation, timing of starting valves, etc.
• Continuous running control of auxiliary func-
tions handled by the ACUs
• Alternative running modes and programs.
Cylinder Control Unit
The control system includes one cylinder control
unit (CCU) per cylinder. The CCU controls the Fuel
Injection and exhaust Valve Activation (FIVA) and
the Starting Air Valves (SAV), in accordance with
the commands received from the ECU.
All the CCUs are identical, and in the event of a
failure of the CCU for one cylinder only this cylin-
der will automatically be cut out of operation.
Auxiliary Control Unit
The control of the auxiliary equipment on the
engine is normally divided among three auxiliary
control units (ACU) so that, in the event of a failure
of one unit, there is sufficient redundancy to per-
mit continuous operation of the engine.
The ACUs perform the control of the auxiliary
blowers, the control of the electrically and engine
driven hydraulic oil pumps of the Hydraulic Power
Supply (HPS) unit.
Engine Control System ME