Judy M. May - Rochester Hills MI John Fiaschetti - Rochester Hills MI Gregory E. Stauffer - Novi MI
Assignee:
Chrysler Corporation - Auburn Hills MI
International Classification:
F02P 500
US Classification:
12340625
Abstract:
A method is provided for applying spark corrections calculated on an individual cylinder basis to the total spark advance for the motor vehicle engine to counter torque imbalances and stabilize crankshaft or engine accelerations. According to the invention, crankshaft feedback is used to measure an average acceleration of the crankshaft attributable to each cylinder. Thereafter, individual cylinder spark corrections designed to equalize the accelerations of each of the cylinders are calculated based on the individual cylinder average accelerations. The calculated individual cylinder spark corrections are then applied to the total spark advance. Preferably, an event delay is employed to correct for the phase lag caused by filtering the crankshaft accelerations which aligns the spark corrections with the proper cylinder.
Gregory Stauffer 1973 graduate of Central Middle School in San carlos, CA is on Memory Lane. Get caught up with Gregory and other high school alumni from
Gregory Stauffer 1978 graduate of Penn Manor High School in Millersville, PA is on Memory Lane. Get caught up with Gregory and other high school alumni from Penn ...