| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_41ac7ff6ab574ca3737b892da2ebfe6f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2200-0816
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2200-0814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-0416
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2900-1624
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2560-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2550-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2560-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2430-06 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1454
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-2454
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0295
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N11-007 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-02 |
| filingDate |
2020-12-09^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2022-11-08^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_482edb5dbdb64b536e9fc72d4a3e3e7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f9806a3c1df1a46deb9cc76c476c2369
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_26e0e9a340bbad5ff6d403ef49449bde |
| publicationDate |
2022-11-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-11492952-B2 |
| titleOfInvention |
Catalyst degradation detection apparatus |
| abstract |
A catalyst degradation detection apparatus includes an air-fuel ratio detector disposed downstream of a catalyst and configured to detect an air-fuel ratio of exhaust gas flowing out from the catalyst, and an electronic control unit configured to control an air-fuel ratio of inflow exhaust gas flowing into the catalyst and determine whether the catalyst is degraded. The electronic control unit is configured to execute degradation determination control that brings the air-fuel ratio of the inflow exhaust gas to an air-fuel ratio leaner or richer than a stoichiometric air-fuel ratio. The electronic control unit is configured to determine whether precious metal of the catalyst is degraded based on the air-fuel ratio detected by the air-fuel ratio detector when an oxygen storage amount of the catalyst is varying in the degradation determination control. |
| priorityDate |
2019-12-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |