发明授权
US06923902B2 Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor
失效
用于测量NOx气体浓度的方法和装置，用于检测废气浓度和校准和控制气体传感器
- 专利标题： Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor
- 专利标题（中）： 用于测量NOx气体浓度的方法和装置，用于检测废气浓度和校准和控制气体传感器
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申请号： US10066638申请日： 2002-02-06
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公开(公告)号： US06923902B2公开(公告)日： 2005-08-02
- 发明人: Masashi Ando , Noboru Ishida , Satoshi Sugaya , Takafumi Oshima , Norihiko Nadanami , Takaki Otsuka , Yoshikuni Sato , Tatsuo Okumura , Yasuhisa Kuzuya
- 申请人： Masashi Ando , Noboru Ishida , Satoshi Sugaya , Takafumi Oshima , Norihiko Nadanami , Takaki Otsuka , Yoshikuni Sato , Tatsuo Okumura , Yasuhisa Kuzuya
- 申请人地址： JP Aichi
- 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： JP Aichi
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP9-87361 19970321; JP9-130354 19970502; JP9-224225 19970806; JP9-264972 19970911
- 主分类号： F01N3/08
- IPC分类号： F01N3/08 ; F01N3/20 ; F01N11/00 ; F02D41/14 ; F02D41/24 ; G01N27/417 ; G01N27/419 ; G01N33/00 ; G01N27/41
摘要：
A method for detecting the concentration of a specific component in gas discharged from an internal combustion engine, which includes detecting the concentration of the specific component under certain driving conditions to determine a zero point, which indicates a zero concentration of the specific component, of the detection output; calibrating the detection output of the gas sensor based on the determined zero point; and detecting the concentration of the specific component in exhaust gas based on the calibrated detection output.