http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020118077-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_196260ac22048e93c96e98cb1ef79b30 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A50-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-94 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-08 |
| filingDate | 2019-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ee3da1588093fe71bbc764722994e6f6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b192f12a6b927cb95da1bf108912296 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a017398f7610cee1ae22348591de6581 |
| publicationDate | 2020-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2020118077-A |
| titleOfInvention | Exhaust gas purification device for internal combustion engine and vehicle |
| abstract | To provide an exhaust emission control device of an internal combustion engine capable of correcting an estimated value of an ammonia storage amount in an SCR catalyst when a decrease in NOx purification performance is detected in an SCR (Selective Catalytic Reduction) catalyst. .. SOLUTION: When the NOx purification rate of the SCR catalyst 40 drops below a first threshold value, the urea water injection amount is changed from the first injection amount determined based on the estimated value of the current ammonia storage amount to the second injection amount. A test operation to increase is performed, and in the test operation, when the NOx purification rate increases to a second threshold value or more that is larger than the first threshold value within a predetermined time, a correction process to decrease the estimated value of the ammonia storage amount is performed, In the test operation, the exhaust emission control device having the control device 100 that performs a correction process to increase the estimated value of the ammonia storage amount when the NOx purification rate does not increase to the second threshold value or more within a predetermined time. [Selection diagram] Figure 2 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112879129-A |
| priorityDate | 2019-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.