METHOD OF DETERMINING ENGINE PHASE WITHOUT CAM PICKUP (VERSIONS) AND ENGINE CONTROL UNIT Russian patent published in 2010 - IPC F02D41/34 

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine comprises multiple cylinders sequence of ignition is performed per two revolutions of crankshaft. Working stroke proceeds in first group of cylinders during one revolution of crankshaft, while in second group of cylinders working stroke proceeds during another revolution of crankshaft. Each cylinder is configured so that there is an ignition opening where through fuel is injected. Note that, in compliance with proposed method, generated is the instruction to inject fuel in at least one cylinder of the first group of cylinders which is out of phase with injection opening. It comprises also real time control over engine operating performance index responsive to ignition and absence of ignition to conclude about proper phase proceeding from fluctuations in engine performance index in compliance with generated injection instructions on injection out of phase with injection opening. Proposed also are versions of the method of determining proper phase of internal combustion engine without cam pickup and implementing program product comprising program code modules that orders the engine control unit to manipulate fuel injection instruction signals is they follow in improper sequence.

EFFECT: higher engine efficiency.

33 cl, 24 dwg