Woodward LECM Large Engine Module

The E6 System is a gas-engine control system that controls speed/load, air/fuel ratio and spark ignition of a four-stroke Spark Ignited Lean-Burn reciprocating engine. It can be applied to single or dual throttle engines in a wide range of power outputs.

The control is easily tunable via Toolkit and operates the engine in emissions compliance through a wide range of engine conditions. Changes in engine AFR operation due to gas quality, fuel system drift, and other environmental conditions (e.g. humidity, air or fuel temperature, etc.) during normal operation of the engine are compensated in the control by means of Power, MAP, exhaust oxygen, or exhaust NOx closed-loop regulation.

The fuel metering subsystem can be used with a Woodward TecJet used typically with a Venturi carburetor. A second TecJet in parallel is allowed or TecJet for a second fuel supply can be added. The controller can also be configured to control a Fuel Trim Valve for use with high or low pressure Air-Plug type or Venturi type carburetors.

An on-board E6 Ignition module is accessed through internal CAN monitoring and control parameters. The E6 Ignition module will function as a slave to the E6, receiving timing and duration references over the Internal CAN network. The E6 control receives diagnostic information from the E6 Ignition for integrated operation and display.

An on-board E6 Knock module is accessed through internal CAN monitoring and control parameters. The E6 Knock module will function as a slave to the E6, receiving window information over the Internal CAN network. The E6 control receives FFT knock intensity and diagnostic information from the E6 Knock for integrated knock mitigation and monitoring of Thermocouple channels.

Advanced Control Functions

Communications Options

TRIM Valve Coud be an L-series or F-series ITB

L-series ITB have valve diameters of 25 mm, 30 mm, 36 mm, 43 mm or 50 mm

F-series ITB have valve diameters of 48 mm, 60 mm, 68 mm or 75 mm

TRIM Valve Coud be an L-series or F-series ITB

L-series ITB have valve diameters of 25 mm, 30 mm, 36 mm, 43 mm or 50 mm

F-series ITB have valve diameters of 48 mm, 60 mm, 68 mm or 75 mm

The LECM Aux Platform Knock applications and hardware are intended to be part of an industrial engine control system for original equipment manufacturers, equipment packagers, and end-users with the need for acoustic windowed knock sensing, supplemental IO with 24 J- or K-Type thermocouples, and/or pressure sensing abilities using Real Time Combustion Diagnostics and Control for acoustic knock setup support. This product can be an add-on to an existing system as an independent device or could be used with the Main and EID modules of a stacked LECM.

The LECM Aux Platform Knock software supports up to 20 acoustic knock sensors for vibration-based knock detection that can be monitored internally in an LECM stack with the LECM Main board or transmitted externally on a CAN network with the J1939 protocol. The software features include:

The LECM Aux 24 thermocouple application and hardware are intended to be part of an industrial engine control system for original equipment manufacturers, equipment packagers, and end-users with the need for up to 24 J- or K-Type thermocouples. This product can be an add-on to an existing system as an independent device or could be used on the Aux module with the Main and EID modules of the LECM.

The LECM Aux 24 thermocouple software supports up to 24 active J- or K-Type thermocouples that can be monitored internally in an LECM stack with the LECM Main board or transmitted externally on a CAN network with the J1939 protocol. The software features include:

Functions		Hardware
24 J or k Thermoucouples 5 ms sampling rate on all 24 channels Engine mounted possible		24 Channels Thermocouples 2 VR/HE/PWM speed sensors 2 HS Ditital output 2 Analog outputs 1 CAN

Aux RT-CDC Provides a reliable and robust way to collect and process in-cylinder pressure data using Woodward LECM hardware platform (on engine mountable).

The processed in-cylinder pressure data provides metrics that can be used for engine control, optimization, and diagnostics. The following are metrics provided by RT-CDC:

Heat Release Metrics SOC - Start of Combustion CA10 - Location where 10% fuel has been burned CAx1 - User selectable location between 10% and 50% fuel burned CA50 - Location where 50% fuel has been burned CAx2 - User selectable location between 50% and 90% fuel burned CA90 - Location where 90% fuel has been burned Burn Duration - Crank angle degrees to burn from CA10 to CA90 Engine Protection True Misfire Detection - Detection when no combustion present Late-Fire Detection - Detection when combustion occurs but is late in the cycle Knock Detection - Pressure based knock intensity Pressure Based Metrics Peak Pressure - Maximum combustion pressure Peak Location - Location where maximum combustion pressure occurred ROPR - Maximum rate of pressure rise IMEP - Gross/Net Indicated Mean Effective Pressure COV of IMEP - Coefficient of variance of IMEP PMEP - Pumping Mean Effective Pressure Pressures at user-defined crank angles

Functions		Hardware
Up to 10 cylinders per RT-CDC module Use of standard engine encoder patterns Encoder sensors (speed sensors); VR or Hall High resolution sampling down to 0.5°CA Zero-lag software filtering Real-time cylinder pressure analysis Configurable mean cylinder pressure analysis J1939 external CAN communication Pressure sensor types: 0-5 V or 4-20 mA Pressure sensor diagnostics; - Thermal drift, - Sensor noise Crank angle location accuracy: 0.5° Pressure based accuracy: 0.5% Cylinder health monitors		10 In-Cylinder Pressure 14 Thermocouples 2 VR/HE/PWM speed sensors 2 HS Ditital output 2 Analog outputs 1 CAN