发明名称 |
SENSOR CONTROL DEVICE AND SENSOR CONTROL METHOD |
摘要 |
A sensor control device including an anomaly diagnosis section. When at least one of a first NOX concentration Ip2W based on the output OP1 of a first differential amplification circuit (210) and a second NOX concentration Ip2N based on the output OP2 of a second differential amplification circuit (220) falls within an anomaly diagnosis range ZN, the difference D between Ip2W and Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, the sensor control device indicates a diagnosis result of “anomalous.” |
申请公布号 |
US2012210174(A1) |
申请公布日期 |
2012.08.16 |
申请号 |
US201013501205 |
申请日期 |
2010.10.06 |
申请人 |
YAZAWA KATSUNORI;KIMOTO YUJI;NGK SPARK PLUG CO., LTD. |
发明人 |
YAZAWA KATSUNORI;KIMOTO YUJI |
分类号 |
G06F11/14 |
主分类号 |
G06F11/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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