SYSTEM AND METHODS FOR IMPROVED EFFICIENCY COMPRESSION IGNITION INTERNAL COMBUSTION ENGINE CONTROL

WIPO Patent Application WO/2012/024652

A3

The present invention relates to a compression ignition engine control system and methods for improving fuel efficiency. The system includes a fuel processor which receives instructions for a desired engine output and current operating conditions. The fuel processor generates fueling instructions for a plurality of cylinders. The fueling instructions include a low power skip fire mode of operation and a high power mode of operation. The instructions substantially regulate fuel delivery into to a first group of cylinders at or near optimal efficiency fuel levels during each of their respective working cycles. Likewise, the instructions may either substantially disable fuel injection into to a second grouping of cylinders or regulate fuel injection into to the second grouping of cylinders at an elevated high power fuel to air ratio. The fuel processor may include a synchronizer for synchronizing firing of the cylinders with the engine speed. Likewise, the fuel processor may include a sigma delta control circuit for generating a firing pattern that utilizes predictive adaptive control.

SILVESTRI CHESTER J (US)
TRIPATHI ADYA S (US)
SAHANDIESFANJANI FARZAD (US)

PCT/US2011/048520

May 10, 2012

August 19, 2011

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TULA TECHNOLOGY INC (US)
SILVESTRI CHESTER J (US)
TRIPATHI ADYA S (US)
SAHANDIESFANJANI FARZAD (US)

F02D41/04; F02D41/02; F02D41/26; F02D41/30

WO2010006321A2

2010-01-14

US20100050986A1	2010-03-04
US20100006065A1	2010-01-14
US20100050993A1	2010-03-04

LIM, Kang, S. (#1-229San Ramon, CA, US)

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