OBD Compliant LPG Engine Conversion
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Opportunity
New Eagle developed the control system on a liquified petroleum gas engine for Powertrain Integration. The system used the General Motors LS3 Engine, but substituted a LPG fuel system for the traditional gasoline fuel system. New Eagle provided torque security for electronic throttle control.
Implemented purge and evaporative emission controls for the fuel delivery system. The system is required to be OBD compliant in its classification.
Solution
New Eagle provided the engine control module, the safety controller and the control algorithms for the engine control system system. A five phase program plan was created and tracked throughout the project. This insured that all of the critical steps (design, DFMEA, testing) for product development were completed on time. Weekly updates were provided to the customer. New Eagle worked closely with Powertrain Integration in all phases to ensure a successful program.
Hardware
Initially a ECM-0565-128-0702 Calibratible Engine Control Module was used for engine control algorithms. The team switched to a ECM-5554-112-0904 Calibratable Engine Control Module for later development. The calibratable module provides quick calibration through the MotoTune calibration tool. An ECM-5554-112-0904 flash module is scheduled for series production when the calibration parameters for OBD compliance have been finalized.
A ECM-0S12-024-0802 Calibratable Egnine Control Module was implemented for the safety processor. This controller communicates with the engine controller and ensures that it is operating properly. If the safety controller detects a discrepancy, it disables critical control actuators and shuts down the system.