http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102012213389-B4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0ab31f95dc9dc146b5f16d36b6b47246 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02T10-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2041-1431 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2041-1416 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D2041-143 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1456 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F01N2240-36 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-1454 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-221 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F02D41-0085 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N1-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N11-00 |
| filingDate | 2012-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f62bbf562928a446f012569e8131512 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bf7651f09b0cc248955e0af5ee8bd84 |
| publicationDate | 2014-07-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-102012213389-B4 |
| titleOfInvention | Device for operating an internal combustion engine |
| abstract | Device for operating an internal combustion engine having a plurality of cylinders (Z1 to Z4), each of which is assigned an injection valve (18), an exhaust tract (4) having an exhaust gas catalyst (21), a lambda probe (42) arranged upstream or in the exhaust gas catalytic converter (42) ) and a downstream of the catalytic converter (21) arranged exhaust flap (24), wherein An allocation unit is provided, which is designed to determine cylinder-specific lambda signals (LAM_I) as a function of the measurement signal (MS1) of the lambda probe (42) and lambda deviation signals (D_LAM_I) for the respective cylinders (Z1 to) depending on the cylinder-specific lambda signals (LAM_I) Z4), based on a lambda signal (LAM_MW) averaged over the cylinder-specific lambda signals (LAM_I), - An observer is provided, which comprises a sensor model of the lambda probe (42) which is arranged in a feedback branch of the observer, wherein the observer is designed so that the cylinder-individual Lambdaabweichungssignale (D_LAM_I) are supplied to the input side and dependent on the respective cylinder (Z1 to Z4) related observer output variables (OBS_I) which are representative of deviations of a mixture characteristic of the respective cylinder (Z1 to Z4) from a predetermined mixture characteristic, wherein the allocation unit and / or the observer are configured to generate a signal sample (OBS_I). SAMP), which depends on a controlled position of the exhaust valve, A diagnostic unit is provided which, in order to detect a possible fault in the region of the exhaust flap, is designed to check in time correlated to a controlled change in the position of the exhaust flap, whether one or more of the observer output variables (OBS_I) or one or more of Their or their dependent parameters change by more than a predetermined threshold (THD) and indeed within a predetermined time period (TD) and depending on the test to determine a diagnostic value (DIAG). |
| priorityDate | 2012-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 28.