6.2
Engine control system WECS-9520
6.2.1
General
The WinGD Engine Control System (WECS-9520) is specially designed for two-stroke engines
with Common Rail technology. This includes all engine-related control functions (
)
and cylinder-related control functions (
The engine-related control functions are as follows:
•
Fuel rail pressure
•
Servo oil pressure for exhaust valve drive
•
Cylinder oil system.
The cylinder-related control functions are as follows:
•
Volumetric injection control, which includes Variable Injection Timing (VIT)
•
Exhaust valve control, which includes Variable Exhaust valve Opening (VEO) and
Variable Exhaust valve Closing (VEC)
•
Starting valve control
•
Crank angle sensor.
Data buses transmit signals between the external systems, the Propulsion Control System
(PCS) and the Alarm and Monitoring System (AMS) (
). These data buses are the
interface between the operator and engine control.
Software updates must be done only with the supervision of a WinGD service engineer and in
accordance with regulations that WinGD has set.
6.2.2
Components
The primary components of the WECS-9520 are as follows:
•
The Shipyard Interface Box (SIB) E90 has communication to the external systems. The
SIB also contains an FCM-20 module as an online spare.
•
The FCM-20 for engine and cylinder-related control functions are installed in a
compartment in the rail unit.
The system bus connects all modules.
The power supply box (E85) is installed near the engine.
The input / output modules (IOM-10 No. 2 to No. 5) are installed in the rail unit. The IOM-10
No.1 is installed in the box E98.
6.2.3
Engine-related control functions
All engine-related control functions are divided between six of the FCM-20 (cylinders 1 to 6).
The last and last but one FCM-20 are for the control functions of the cylinder oil system.
X92DF
AA00-0000-00AAB-043K-A
Operation Manual
Engine control system WECS-9520
Winterthur Gas & Diesel Ltd.
- 260 -
Issue 002 2020-08
