Invention Grant
- Patent Title: Non-intrusive exhaust gas sensor monitoring
- Patent Title (中): 非侵入式废气传感器监测
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Application No.: US13352885Application Date: 2012-01-18
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Publication No.: US09074513B2Publication Date: 2015-07-07
- Inventor: Imad Hassan Makki , Pankaj Kumar , James Michael Kerns , Hassene Jammoussi
- Applicant: Imad Hassan Makki , Pankaj Kumar , James Michael Kerns , Hassene Jammoussi
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julia Voutyras
- Main IPC: G01N33/00
- IPC: G01N33/00 ; F01N11/00 ; F02D41/14 ; F02D41/28
Abstract:
A method for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one embodiment, the method comprises indicating exhaust gas sensor degradation based on characteristics of a distribution of extreme values of a plurality of sets of lambda differentials collected during selected operating conditions. In this way, the exhaust gas sensor may be monitored in a non-intrusive manner.
Public/Granted literature
- US20130180509A1 NON-INTRUSIVE EXHAUST GAS SENSOR MONITORING Public/Granted day:2013-07-18
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