发明名称 |
Fuel control for robust detection of catalytic converter oxygen storage capacity |
摘要 |
An oxygen storage capacity (OSC) monitoring system for a vehicle having a catalytic converter includes an inlet oxygen sensor that generates an inlet sensor signal (ISS) based on an oxygen content of exhaust flowing into the catalytic converter. A control module receives the ISS, increases a closed loop fuel control gain during a first period and determines a fuel control factor based on the ISS during the first period. The control module determines an OSC when an average value of the fuel control factor is greater than a first value and is less than a second value during the first period.
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申请公布号 |
US2006272315(A1) |
申请公布日期 |
2006.12.07 |
申请号 |
US20050145284 |
申请日期 |
2005.06.03 |
申请人 |
WANG WENBO;JESS RICHARD B;BELTON DAVID N;THELEN CHRIS R;HUTMACHER JEFFREY M;WESTERN WILLIAM;MACEWEN IAN J;GENSLAK ROBERT J |
发明人 |
WANG WENBO;JESS RICHARD B.;BELTON DAVID N.;THELEN CHRIS R.;HUTMACHER JEFFREY M.;WESTERN WILLIAM;MACEWEN IAN J.;GENSLAK ROBERT J. |
分类号 |
F01N11/00;F01N9/00;F02D41/14 |
主分类号 |
F01N11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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