Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converter
US9181844B2 · kind B2 · utility
0Cited by
13References
27Claims
0Family size
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Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system according to the principles of the present disclosure includes a diagnostic execution module and a diagnostic disabling module. The diagnostic execution module diagnoses a fault in at least one of an oxygen sensor and a catalytic converter based on input received from the oxygen sensor. The diagnostic disabling module disables the diagnosing based on at least one of a temperature of the catalytic converter and a mass flow rate of air flowing through the catalytic converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.