发明授权
- 专利标题： Diagnostic system and method for an oxygen sensor positioned downstream from a catalytic converter
- 专利标题（中）： 位于催化转化器下游的氧传感器的诊断系统和方法
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申请号： US13243019申请日： 2011-09-23
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公开(公告)号： US09181844B2公开(公告)日： 2015-11-10
- 发明人: Stephen Paul Levijoki , Michael John Dokter , John W. Siekkinen , Jeffry A. Helmick
- 申请人： Stephen Paul Levijoki , Michael John Dokter , John W. Siekkinen , Jeffry A. Helmick
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 当前专利权人地址： US MI Detroit
- 主分类号： F01N3/00
- IPC分类号： F01N3/00 ; F01N11/00
摘要：
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.
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