Paper Title:
Study on Response Characteristics of Switching Zirconia Oxygen Sensor for Air-Fuel Ratio Control
  Abstract

The time delay between the changed quantity of the injected fuel and the detection of the resulting change of the air-fuel ratio determines the dynamic nature of the closed-loop control for air-fuel ratio, and the response delay of oxygen sensor itself is a main effect factor. The response characteristics of switching zirconia oxygen sensor will change and even deteriorate with the increasing service time of oxygen sensor. In this paper, the response characteristics of switching zirconia oxygen sensor and the impact of response slowing on air-fuel ratio and emissions are studied through engine bench test, the impact of response delay of switching zirconia oxygen sensor on air-fuel ratio control is analysed, and a new controller of air-fuel ratio based on discrete PI controller is proposed.

  Info
Periodical
Advanced Materials Research (Volumes 343-344)
Chapter
Session 1: Materials for Environmental Protection and Energy Application
Edited by
David Wang
Pages
150-155
DOI
10.4028/www.scientific.net/AMR.343-344.150
Citation
D. L. Wang, M. Wan, H. Y. Pan, "Study on Response Characteristics of Switching Zirconia Oxygen Sensor for Air-Fuel Ratio Control", Advanced Materials Research, Vols. 343-344, pp. 150-155, 2012
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Wei Bin Wu, Tian Sheng Hong, Jin Xing Guo, Xian Mao Liu, Xie Ming Guo, Sheng Hao Wu
Abstract:Air-Fuel Radio (AFR) analyzer technology is basically mastered by monopolies of developed country nowadays. Due to the lack of development in...
946
Authors: Mohd Faisal Hushim, Ahmad Jais Alimin, Mohd Farris Mansor
Abstract:Fuelling system is one of the crucial variables that must be focused on, in order to achieve good fuel efficiency and low engine out...
31
Authors: Yue Li, En Zhe Song, Zhan Hu Zhang, Guo Feng Zhao, Shuai Huang
Chapter 3: Mechatronics, Control Systems and Robotics
Abstract:The air-fuel ratio (AFR) control becomes an important research direction in gas engine. This article conducts air-fuel ratio (AFR) closed...
372