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 (Para 6.2.3)
and cylinder-related control functions (Para 6.2.4).
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) (Para 6.2.5). 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
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