FIELD: engines.
SUBSTANCE: invention can be used in internal combustion engines. Method for engine (10) comprises estimating an ambient humidity using a humidity sensor at the inlet while learning a reference point for an intake oxygen sensor at a reference intake pressure. Reference point corresponds to the oxygen sensor reading when there is no exhaust gas recirculation. Learned reference point is corrected on the basis of the estimated ambient humidity. Opening of the EGR valve is adjusted based on the correction. Version of the method for the engine and an engine system are disclosed.
EFFECT: technical result consists in a more accurate determination of an oxygen sensor reference point.
20 cl, 9 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PCV (POSITIVE CRANKCASE VENTILATION) FLOW ESTIMATION METHODS AND SYSTEMS BY THE OXYGEN SENSOR AT INLET | 2014 |
|
RU2669076C2 |
| METHODS AND SYSTEMS FOR INTAKE OXYGEN SENSOR | 2014 |
|
RU2653721C2 |
| METHOD FOR ENGINE (VERSIONS) AND ENGINE SYSTEM | 2014 |
|
RU2665197C2 |
| ENGINE METHODS AND SYSTEMS | 2015 |
|
RU2674096C2 |
| METHODS AND THE SYSTEM OF ENGINE CONTROL | 2015 |
|
RU2670566C2 |
| FUEL INJECTION METHOD (VERSIONS) | 2013 |
|
RU2609016C2 |
| METHOD (VERSION) AND SYSTEM FOR HUMIDITY AND POSITIVE CRANKCASE VENTILATION FLOW DETECTION VIA EXHAUST GAS SENSOR | 2014 |
|
RU2676831C2 |
| ENGINE METHODS (VERSIONS) | 2014 |
|
RU2663678C2 |
| METHODS FOR ENGINE AND ENGINE SYSTEM | 2015 |
|
RU2669111C2 |
| METHOD (VERSIONS) AND SYSTEM OF SELECTIVE WITHDRAWAL FROM OPERATION OF ONE OR MORE ENGINE CYLINDERS | 2014 |
|
RU2663604C2 |
