Sughrue Mion, PLLC
Methods and apparatus for measuring NOx gas concentration, for detecting exhaust gas concentration and for calibrating and controlling gas sensor
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.
NGK Spark Plug Co, Ltd.
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Yasuhisa Masashi Noboru Norihiko Yoshikuni Tatsuo Satoshi Takaki Takafumi
Kuzuya Ando Ishida Nadanami Sato Okumura Sugaya Otsuka Oshima