Title :
A phase and frequency locking loop for engine air-fuel ratio control
Author :
Liu, Sharon ; Dudek, Kenneth P. ; Shafto, Robert D.
Abstract :
In the spirit of the recent articles in [5], featuring classical controls revisited, a phase-lock loop concept is applied to an automotive air-fuel ratio closed-loop control system. This classical solution is analyzed, simulated, and experimentally implemented in a vehicle. The results demonstrate that the automobile engine air-fuel ratio system can be controlled to robustly meet emissions and driving performance requirements by using a simple classical control methodology with feedback from the common switching oxygen sensor.
Keywords :
closed loop systems; internal combustion engines; phase locked loops; automobile engine air-fuel ratio system; closed-loop control system; engine air-fuel ratio control; frequency locking loop; phase locking loop; switching oxygen sensor; Analytical models; Automobiles; Automotive engineering; Control systems; Engines; Feedback; Frequency locked loops; Robust control; Sensor systems; Vehicles;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4586511
