发明授权
- 专利标题： System of abnormality detection for oxygen concentration sensor
- 专利标题（中）： 氧浓度传感器异常检测系统
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申请号： US030493申请日： 1987-03-27
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公开(公告)号： US4724815A公开(公告)日： 1988-02-16
- 发明人: Toshiyuki Mieno , Toyohei Nakajima , Yasushi Okada , Nobuyuki Oono
- 申请人： Toshiyuki Mieno , Toyohei Nakajima , Yasushi Okada , Nobuyuki Oono
- 申请人地址： JPX Tokyo
- 专利权人： Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人： Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX61-69097 19860327
- 主分类号： G01N27/26
- IPC分类号： G01N27/26 ; F02D41/14 ; F02D41/22 ; G01N27/27 ; G01N27/406 ; G01N27/407 ; G01N27/409 ; G01N27/416 ; G01N27/417 ; G01N27/419 ; G01N37/00
摘要：
A system of abnormality detection for an oxygen concentration sensor employed to sense the oxygen concentration in engine exhaust gas for obtaining data to control the air/fuel ratio of a fuel mixture supplied to the engine. In which, the oxygen concentration sensor includes a sensor cell element, an oxygen pump element each formed of a pair of electrodes which sandwich a solid electrolytic member, and a heater element for heating the solid electrolytic member. The system functions to detect an abnormality of the heater element on the basis of the value of a voltage developed between the electrodes of the sensor cell element and an air/fuel ratio compensation value that is derived by sensing the exhaust gas oxygen concentration.
公开/授权文献
- US5890590A Housing for a disc-shaped information carrier 公开/授权日：1999-04-06
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