Method for generating energy output signal

Details Method for generating energy output signal Method for generating energy output signal

F - Mech Eng,Light,Heat,Weapons

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317/5.35

F02P 9/00 (2006.01) F02P 5/04 (2006.01) F02P 17/00 (2006.01) F02B 75/02 (2006.01)

Patent

CA 1180372

- 38 - ABSTRACT OF THE DISCLOSURE This specification discloses a method for generating an engine energy output signal for use by an adaptive strategy in controlling the per- formance of a spark ignited automobile combustion engine. An estimated future energy output combines the weighted sum of a short term energy output average, a medium term energy output average and a long term energy output average. The adaptive strategy adjusts spark timing and distance of EGR as a function of engine energy usage per distance traveled while maintaining feedgas emissions at a constant level over a wide variety of driving patterns including urban, suburban and highway. This adaptive strategy has advantageous fuel consumption charac- teristics which are greatest at the most constrained feedgas levels. Drivability can be enhanced because of the greater calibration flexibility inherent to the adaptive technique.

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