| 发明名称 |
Particulate filter regeneration method |
| 摘要 |
A regeneration system for a filter that filters exhaust gas of an engine includes a soot loading determination module that determines soot accumulation in the filter. A regeneration control module receives the determined soot accumulation from the soot loading determination module, compares the soot accumulation to a first soot accumulation threshold, and selectively increases oxidation levels in the exhaust gas in response to the comparison between the soot accumulation and the first soot accumulation threshold to initiate regeneration in the filter. |
| 申请公布号 |
US8850798(B2) |
申请公布日期 |
2014.10.07 |
| 申请号 |
US201113105287 |
申请日期 |
2011.05.11 |
| 申请人 |
|
发明人 |
Brown David B.;Smith Stuart R. |
| 分类号 |
F01N3/00;F02D41/02;F02D41/14;F01N3/10 |
主分类号 |
F01N3/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A regeneration system for a filter that filters exhaust gas of an engine, the regeneration system comprising:
a soot loading determination electronic circuit configured to determine soot accumulation in a filter; and a regeneration control electronic circuit configured to i) receive the determined soot accumulation from the soot loading determination electronic circuit, ii) selectively increase oxidation levels in the exhaust gas in response to a comparison between the soot accumulation and a first soot accumulation threshold to initiate regeneration in the filter, and iii) selectively decrease the oxidation levels in the exhaust gas, in response to a comparison between the soot accumulation and a second soot accumulation threshold, to terminate the regeneration in the filter. |
| 地址 |
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