The Woodward Large Engine Control Module (LECM) manages and controls reciprocating engines (gas, diesel, or dual fuel) used in power generation, marine propulsion, locomotive and industrial engine, and process markets. The LECM provides a single, engine-mounted module that can be used to control all aspects of the engine’s operation, including speed and load control, air/fuel ratio control, ignition or injector control, misfire and knock detection, air/gas/exhaust flow control, the engine’s start and stop routines, along with all the monitoring and engine-protection-related alarms associated with each function, as well as on-board data logging and communications. The LECM’s software also allows control system designers to insert their own market-differentiating control algorithms. This single-module approach lowers hardware, wiring, and troubleshooting costs, as well as reducing development and installation time. Additional advantages come from having only one software service tool to learn and support.

E3 Rich Burn integrates fuel control and catalyst control in a single system using StableSense™ Technology. Unlike first-generation A/F controls, E3 Rich Burn effectively analyzes, controls and optimizes engine and catalyst functions without continuous readjustment.

The system can be used as a stand-alone air-fuel ratio controller or as a complete gas engine emissions and engine control. It is designed for stoichiometric, spark-ignited natural-gas engines used in gas compression, power generation, pumping, and other stationary applications ranging from under 300 kW (400 hp) to over 2 MW (2700 hp). It has full authority over spark, fuel, and air. Additionally, diagnostics such as misfire detection and other health monitoring and engine protection functions are integrated into the system.

The E3 Rich Burn system-based solution analyzes and controls all of the functions of your engine and catalyst to optimize the amount of time your engine is in compliance. The system controls the air-fuel ratio through a fuel metering trim valve. By means of the exclusive StableSense™ oxygen feedback sensor in the exhaust and the unique StableSense™ control algorithm the air-fuel ratio (lambda) is controlled slightly below 1 to optimize the three-way catalyst emission reduction.