TY - GEN
T1 - Adaptive time delay compensation for air-fuel ratio control of a port injection SI engine
AU - Khajorntraidet, Chanyut
AU - Ito, Kazuhisa
AU - Shen, Tielong
N1 - Publisher Copyright:
© 2015 The Society of Instrument and Control Engineers-SICE.
PY - 2015/9/30
Y1 - 2015/9/30
N2 - Because of increasingly stringent requirements on engine efficiency and emission control, the air-fuel ratio (AFR) control strategies for port injection spark ignition (SI) engines are still continuously improved. The effects of time delay limit the AFR controller gains and degrade the system performance. The Smith predictor can be applied to overcome this problem. However, the implementation of this predictor requires accurate information of the system parameters and time delay. Hence, this paper proposes an adaptive algorithm for feedback time delay compensation in the AFR control system of a port injection SI engine. This adaptive algorithm with Smith predictor is applied to estimate and compensate the feedback time delay. The simulation results show that the proposed compensator with conventional Smith predictor can be used to improve the AFR control system efficiency and reduce the effects of time delay.
AB - Because of increasingly stringent requirements on engine efficiency and emission control, the air-fuel ratio (AFR) control strategies for port injection spark ignition (SI) engines are still continuously improved. The effects of time delay limit the AFR controller gains and degrade the system performance. The Smith predictor can be applied to overcome this problem. However, the implementation of this predictor requires accurate information of the system parameters and time delay. Hence, this paper proposes an adaptive algorithm for feedback time delay compensation in the AFR control system of a port injection SI engine. This adaptive algorithm with Smith predictor is applied to estimate and compensate the feedback time delay. The simulation results show that the proposed compensator with conventional Smith predictor can be used to improve the AFR control system efficiency and reduce the effects of time delay.
KW - Adaptive Compensation
KW - Air-Fuel Ratio
KW - Smith Predictor
KW - Spark Ignition Engine
KW - Time Delay
UR - http://www.scopus.com/inward/record.url?scp=84960154304&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960154304&partnerID=8YFLogxK
U2 - 10.1109/SICE.2015.7285486
DO - 10.1109/SICE.2015.7285486
M3 - Conference contribution
AN - SCOPUS:84960154304
T3 - 2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
SP - 1341
EP - 1346
BT - 2015 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 54th Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2015
Y2 - 28 July 2015 through 30 July 2015
ER -