FIELD: internal combustion engines.
SUBSTANCE: group of inventions relates to recirculation in an internal combustion engine. Essence of inventions consists in the fact that there are provided methods and system for determination of changes of passage section of exhaust gas recirculation valve (EGR) as a result of change of temperature difference between rod and body of EGR valve for evaluation of flow of EGR. In one example, the method includes controlling the EGR valve based on the EGR flow estimate, wherein the EGR flow is evaluated based on the pressure difference on the EGR valve and the adjusted flow section of the valve. Adjusted flow section of the valve can be determined by temperature difference between rod and EGR valve body.
EFFECT: technical result is higher accuracy of controlling recirculation value.
20 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SYSTEM AND METHOD (EMBODIMENTS) FOR ENGINE | 2016 |
|
RU2692871C2 |
| SYSTEM AND METHOD (EMBODIMENTS) OF DIAGNOSING SOOT ACCUMULATION ON EXHAUST GAS RECIRCULATION VALVE | 2016 |
|
RU2702715C2 |
| METHOD OF OPEN AND CLOSED CONTROL OF EXHAUST GAS RECIRCULATION SYSTEM (VERSIONS) | 2016 |
|
RU2719200C2 |
| METHOD (VERSIONS) AND SYSTEM FOR CONTROLLING EXHAUST GAS RECIRCULATION VALVE DURING LEAN OPERATION IN BOOSTED ENGINE SYSTEM | 2014 |
|
RU2676833C2 |
| SYSTEM AND METHOD (EMBODIMENTS) FOR ENGINE | 2017 |
|
RU2695236C2 |
| ENGINE CONTROL METHOD (VERSIONS) AND ENGINE SYSTEM | 2012 |
|
RU2605167C2 |
| METHOD OF DETERMINING CONTENT OF ETHANOL IN FUEL USING AN OXYGEN SENSOR (EMBODIMENTS) | 2015 |
|
RU2691275C2 |
| METHOD AND SYSTEM FOR DIAGNOSTIC OF EXHAUST GASES RECIRCULATION SYSTEM | 2017 |
|
RU2683201C1 |
| ENGINE OPERATING METHOD (EMBODIMENTS) AND VEHICLE SYSTEM | 2015 |
|
RU2694998C2 |
| ENGINE OPERATION METHOD | 2013 |
|
RU2582720C2 |
