发明名称 |
Ash detection in diesel particulate filter |
摘要 |
Detecting ash in a diesel particulate filter includes receiving data indicative of signal attenuation for ash-responsive and ash-insensitive RF signals transmitted through a diesel particulate filter containing trapped soot and ash. A difference between the RF signals, such as a difference in signal attenuation, may be leveraged to detect a relative ash loading state or a change in relative ash loading state of the diesel particulate filter, and responsively indicate that filter cleaning is needed.
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申请公布号 |
US8470070(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US20100841308 |
申请日期 |
2010.07.22 |
申请人 |
KULKARNI VADIRAJ P.;LEUSTEK MATTHEW E.;MICHELS SARA K.;NAIR RAJESH N.;SNOPKO MICHAEL A.;KNITT ANDREW A.;CATERPILLAR INC. |
发明人 |
KULKARNI VADIRAJ P.;LEUSTEK MATTHEW E.;MICHELS SARA K.;NAIR RAJESH N.;SNOPKO MICHAEL A.;KNITT ANDREW A. |
分类号 |
B01D39/06;B01D39/14;B01D46/46;B01D50/00;F01N3/00;F01N3/02 |
主分类号 |
B01D39/06 |
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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