Title :
Development of a new model based air-fuel ratio control system
Author :
Kako, Junichi ; Okazaki, Shuntaro ; Kato, Naoto
Author_Institution :
Engine Manage. Syst. Dev. Div, Toyota Motor Corp., Aichi, Japan
Abstract :
The second-generation air-fuel ratio control method has been developed to reduce exhaust gas emissions in accordance with the improvements in catalysts. The control system consists of a feedforward control using a fuel behavior model, a feedback control using an universal exhaust gas oxygen (UEGO) sensor and a feedback control utilizing the heated exhaust gas oxygen (HEGO) sensor. Experimental results on actual vehicles show the effectiveness of presented method.
Keywords :
catalysts; exhaust systems; feedback; feedforward; fuel economy; fuel systems; gas sensors; pollution control; air-fuel ratio control system; catalysts; exhaust gas emission reduction; feedback control; feedforward control; fuel behavior model; universal exhaust gas oxygen sensor; Control system synthesis; Engine cylinders; Exhaust systems; Feedback control; Fuels; Gas detectors; Power system modeling; Sensor systems; Temperature control; Thermal sensors; air fuel ratio control; engine control;
Conference_Titel :
ICCAS-SICE, 2009
Conference_Location :
Fukuoka
Print_ISBN :
978-4-907764-34-0
Electronic_ISBN :
978-4-907764-33-3
