http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H08121217-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_460c2d3884b7724541bf93de2a201dfd http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dc45703f67bc72a6db582867886fd5d5 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F02D41-14 |
| filingDate | 1994-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e0d933d6ccefe708672e88f689161440 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_866bbac9d4b2376425f7c5a520bb0a62 |
| publicationDate | 1996-05-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H08121217-A |
| titleOfInvention | Air-fuel ratio control device for internal combustion engine |
| abstract | (57) [Abstract] [Purpose] When the control is switched from lean air-fuel ratio to stoichiometry, it is possible to prevent erroneous correction of the air-fuel ratio caused by the delay in switching the function of the oxygen concentration sensor. [Structure] An oxygen concentration sensor 34 has both functions of a lean sensor and an oxygen sensor, and its function is switched by switching the presence / absence of voltage application to the sensor 34. An electronic control unit (ECU) 41 feedback-controls the air-fuel ratio to lean or stoichiometric according to the operating state of the engine 1. The ECU 41 calculates a correction value based on the detection value of the sensor 34, and calculates a target injection amount based on the correction value. The ECU 41 executes feedback control of the air-fuel ratio by controlling the injector 5 based on the target injection amount. When the feedback control shifts from lean to stoichiometric, the ECU 41 forcibly determines that the air-fuel ratio is leaner than stoichiometric for a predetermined period and forcibly reverses the air-fuel ratio correction value in the increasing direction. |
| priorityDate | 1994-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.