发明名称 |
Diagnostic method and control apparatus for gas sensor |
摘要 |
A gas sensor diagnostic method includes: a fuel supply detecting step of detecting an interruption of a fuel supply to the internal combustion engine, and a restart of the fuel supply after the interruption of the fuel supply; a response time period accumulating step of determining a response time period by accumulating a first time period that the sensor output value reaches from a first threshold value to a second threshold value after the detection of the interruption of the fuel supply, and a second time period that the sensor output value reaches from a third threshold value to a fourth threshold value after the detection of the restart of the fuel supply after the interruption of the fuel supply; and an abnormal state diagnosing section of determining an abnormal state of the gas sensor when the response time period is greater than a predetermined time period.
|
申请公布号 |
US7614392(B2) |
申请公布日期 |
2009.11.10 |
申请号 |
US20080033525 |
申请日期 |
2008.02.19 |
申请人 |
NGK SPARK PLUG CO., LTD.;SUZUKI MOTOR CORPORATION |
发明人 |
FUKAGAI REINA;IEDA NORIKAZU;TANAKA MASAHIRO;INAGAKI HIROSHI;TAKAMATSU KUNIHIKO;HIRATA MASAKI;SUZUKI TAKAHIRO |
分类号 |
F02D41/22 |
主分类号 |
F02D41/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|