GAS ENGINES
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The Custom Engine Control® (CEC) family consists of an Ignition Module (IM), Detonation Sensing Module (DSM), Air/Fuel Module (AFM) and, on ATGL engines, the Turbocharger Control Module (TCM). Together they form a comprehensive engine management system that optimizes engine performance. Even when large changes in operating conditions occur, there is no discernible difference in engine performance.
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Air/Fuel Module (AFM) [ TOP ]
Waukesha’s Custom Engine Control® (CEC) Air/Fuel Module (AFM) has the ability to actively monitor exhaust temperature and oxygen content to adjust the air/fuel ratio for both stoichiometric and lean burn natural gas engines. Waukesha’s patented sensor mounting system provides an accurate feedback measurement of air/fuel ratio and eliminates predictive adjustments found on other systems. The AFM offers a very broad adjustment range to accommodate large changes in fuel composition and atmospheric conditions. Although the adjustment range is broad, small adjustment steps are taken when needed for very precise air/fuel ratio control. Call 1-800-969-6121
Unlike other systems which have single set-point control, the AFM permits the air/fuel mixture to be tailored with engine load to meet the specific needs of any application. It also employs safety limits to be sure no unsafe fueling conditions occur.
The AFM can be used with other CEC modules or separately to optimize engine performance even with changes to engine load, speed, fuel pressure, fuel quality, and ambient conditions.
Detonation Sensing Module (DSM) [ TOP ]
Waukesha’s Custom Engine Control® (CEC) Detonation Sensing Module (DSM) has the ability to sense detonation occurring in a cylinder and retard timing as necessary on an individual cylinder basis. On 16 cylinder engines, two “paired” cylinders are controlled.
The DSM works directly through the CEC Ignition Module’s (IM) expansion port to adjust timing. Timing is adjusted every second. Sensors located on or near the cylinder heads send a continuous signal to a DSM filter when the engine is operating.
The filter sorts out the signals that represent detonation, and relays that information to the DSM. The DSM evaluates the filtered signal and adjusts timing accordingly until detonation is eliminated or a maximum timing retard value is reached. For dual fuel applications or other applications where a change in timing is required, the DSM system automatically changes cylinder timing.
Ignition Module(IM) [ TOP ]
Waukesha's Custom Engine Control® (CEC) Ignition Module (IM) provides accurate and reliable ignition timing for optimum stationary engine operation. The newly updated electronic IM is specifically designed to enhance the performance and cost-effectiveness of Waukesha engines. The IM offers improved starting, smoother operation, and increased spark plug life. The IM is an electronic, microcircuit-based digital ignition system that is standard on ATGL, VHP and VGF engines.
When the IM is integrated with the CEC Detonation Sensing Module (DSM) system, the ignition system protects the engine from detonation and costly downtime, and maximizes power availability under adverse conditions. Together the IM and DSM form a protection system to extend life, optimize engine performance, and provide defense against engine detonation.
