发明公开
- 专利标题： Method and apparatus for measuring NOx gas concentration
- 专利标题（中）： 用于测量NOx气体浓度的方法和设备
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申请号： EP00109915.9申请日： 1998-03-23
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公开(公告)号： EP1077375A1公开(公告)日： 2001-02-21
- 发明人: Ando, Masashi , Ishida, Noboru , Sugaya, Satoshi , Oshima, Takafumi , Nadanami, Norihiko , Otsuka, Takaki , Sato, Yoshikuni , Okumura, Tatsuo , Kuzuya, Yasuhisa
- 申请人： NGK SPARK PLUG CO., LTD
- 申请人地址： 14-18, Takatsuji-cho Mizuho-ku Nagoya-shi Aichi JP
- 专利权人： NGK SPARK PLUG CO., LTD
- 当前专利权人： NGK SPARK PLUG CO., LTD
- 当前专利权人地址： 14-18, Takatsuji-cho Mizuho-ku Nagoya-shi Aichi JP
- 代理机构： DIEHL GLAESER HILTL & PARTNER
- 优先权： JP8736197 19970321; JP13035497 19970502; JP22422597 19970806; JP26497297 19970911
- 主分类号： G01N27/419
- IPC分类号： G01N27/419 ; G01N27/417
摘要：
The present invention relates to a method and apparatus for detecting the concentration of a specific gas in an engine exhaust gas, wherein the amount of moisture in the exhaust gas from driving conditions of the engine is estimated, a gas concentration detection signal output by a gas sensor is corrected responsive to an estimated amount of moisture, and the effect of the amount of moisture in said exhaust gas from the detected value of the gas concentration is removed or reduced.
公开/授权文献
- EP1077375B1 Method and apparatus for measuring NOx gas concentration 公开/授权日：2012-06-20
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