MAN B&W S65ME-C8.2-GI-TII, Project Manual

Page: 297 / 395

MAN B&W 16.00
Page 1 of 3
MAN Diesel MAN B&W ME-GI engines 198 89 30-0.2
Engine Control System – Dual Fuel
Fig. 16.00.01: ME-GI-ECS overview of the ME-ECS core and GI extension
The ME-GI engine control system, (ME-GI-ECS),
is a common control system which is able to con-
trol all the functions known from the ME-engine.
The ME-GI-ECS also controls the gas injection as
well as the additional functionality and auxiliary
systems related to the handling of gas on the en-
gine and in the machine room, by means of:
• Electronically profiled fuel oil injection
• Electronically controlled exhaust valve actuation
• Governor/speed control
• Start and reversing sequencing
• Cylinder lubrication
• Variable turbocharging (if applied)
• Electronically controlled gas injection
• Sequencing change-over between fuel oil and
dual fuel operation
• Gas combustion monitoring and safety gas
shutdown
• Double-pipe ventilation and leak monitoring
• Sealing oil control
• Purging of gas piping with inert gas
• Interface to the FGS system.
178 65 91 4.1
For gas safety reasons, many functions are dupli-
cated, and as a result of this, the GI extension is
divided in two main parts: The GI control system
and the GI safety system. Fig. 16.00.01 illustrates how the ME-ECS core
controls both the pilot and gas injection. The GI
extension handles gas related safety control and
gas plant control, including interface to the FGSS
control system.
Crankshaft position and speed
Hydraulic oil
Fuel oil
High-pressure gas
Gas supply system
LNG
tank
Gas supply
control
system
MOP A/B
GI extension
ME-ECS
GI safety
control
GI plant
control