| 发明名称 |
Abnormality detection apparatus for particulate filter |
| 摘要 |
An abnormality detection apparatus for a particulate filter that is provided in an exhaust system of an internal combustion engine and traps particulate matter in exhaust gas. The abnormality detection apparatus includes: a sensor that is provided downstream of the particulate filter and detects the particulate matter; a removal device that removes the particulate matter trapped in the particulate filter based on an output of the sensor; and a determination device that determines whether the particulate filter is in an abnormal state based on a first stabilization time that has elapsed until the output of the sensor becomes stable after completion of removal of the particulate matter performed by the removal device. |
| 申请公布号 |
US8745968(B2) |
申请公布日期 |
2014.06.10 |
| 申请号 |
US201113499377 |
申请日期 |
2011.05.02 |
| 申请人 |
Toyota Jidosha Kabushiki Kaisha |
发明人 |
Nishijima Hiroki |
| 分类号 |
F01N3/00 |
主分类号 |
F01N3/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An abnormality detection apparatus for a particulate filter that is provided in an exhaust system of an internal combustion engine and traps particulate matter in exhaust gas, the abnormality detection apparatus comprising:
a sensor that is provided downstream of the particulate filter and detects the particulate matter; a removal device that removes the particulate matter trapped in the particulate filter, based on an output of the sensor; and a determination device that determines whether the particulate filter is in an abnormal state, based on a first stabilization time that has elapsed until the output of the sensor becomes stable after completion of removal of the particulate matter performed by the removal device.
|
| 地址 |
Toyota JP |
