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Automation / Alarm / Monitoring: Uec-Eco Engine Technical Data 6.6 Auto-Tuning

The document describes an auto-tuning system that automatically monitors and adjusts cylinder combustion conditions on a marine engine. The system consists of cylinder pressure sensors on each cylinder, monitoring devices that process sensor signals, and an Eco-Engine control system. It monitors real-time cylinder pressure values and combustion conditions, outputs alarms for abnormal readings, and automatically tunes the fuel injection timing for each cylinder to match preset pressure levels. This helps optimize engine performance.

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95 views2 pages

Automation / Alarm / Monitoring: Uec-Eco Engine Technical Data 6.6 Auto-Tuning

The document describes an auto-tuning system that automatically monitors and adjusts cylinder combustion conditions on a marine engine. The system consists of cylinder pressure sensors on each cylinder, monitoring devices that process sensor signals, and an Eco-Engine control system. It monitors real-time cylinder pressure values and combustion conditions, outputs alarms for abnormal readings, and automatically tunes the fuel injection timing for each cylinder to match preset pressure levels. This helps optimize engine performance.

Uploaded by

britties69
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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UEC-Eco ENGINE

6. Automation / Alarm / Monitoring

Technical Data
6.6 Auto-tuning

6.6.3 Function
Auto-tuning system consists of following function.

6.6.1 General
Auto-tuning system is the optional system to monitor and
adjust the cylinder combustion condition of main engine
automatically and facilitate the engine performance
keeping optimally.
This system consists of cylinder pressure sensors,
monitoring devices and Eco-Engine Control System. The
cylinder pressure sensors are mounted on each cylinder
and measured cylinder pressure. Monitoring devices
process the signal of cylinder pressure and indicate on
man-machine interface. In addition, the processed signal
is input to Eco-Engine Control System.

6.6.2 Power supply capacity


- Signal Processor:
Approx. 25VA (DC24V)
from Eco PSB

(1) Monitoring
This system can indicate the real-time value under
followings numerically or graphically, and these
values can be logged in each rotating cycle of main
engine.
- Maximum cylinder pressure (Pmax)
- Compression pressure (Pc)
- Indicated mean effective pressure (Pmi)
- Indicated horsepower (IHP)
Eco-Engine Control System monitors the condition
of cylinder combustion and system. In case that
whichever is abnormal condition, Eco-Engine
Control System outputs the alarms.
(2) Tuning
Eco-Engine Control System monitors each actual
cylinder pressure and control the fuel injection timing
of each cylinder automatically as the actual cylinder
pressure is coincident with preset pressure.

- UPS
Approx. 400VA (AC100V)

Control Room

Engine Room

Eco-Engine Control System

Engine Side

Main Controller

Engine Control Signal


Cylinder Controller

Converter
PC & Server
Signal Processor

Amplifier

UPS

Cylinder Pressure Sensor

Power Supply

Power Supply

AC100V

DC24V

Monitoring Device

TDC Sensor

Fig.6.6.1 Auto-tuning system


MITSUBISHI HEAVY INDUSTRIES
MARINE MACHINERY & ENGINE Co., Ltd.

COMMON_6.6_1

Page 2/2

UEC-Eco ENGINE

6. Automation / Alarm / Monitoring

Technical Data

MEMO:

COMMON_6.6_1

MITSUBISHI HEAVY INDUSTRIES


MARINE MACHINERY & Engine Co., LTD.

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