FIELD: engines and pumps.
SUBSTANCE: invention relates to internal combustion engines exhaust gases processing system. Faults diagnostics device according to exhaust gases control device having both selective reduction function, and filtering function, calculates NOX purification rate, relating to case, when exhaust gases control device is in normal condition, based on solid particles (PM) amount estimated value collected or accumulated in exhaust gases control device, and estimated value of NO2 share in exhaust gas, flowing into exhaust gases control device, and determines, that exhaust gases control device is faulty, when difference between calculation result and actual NOX purification rate exceeds threshold value.
EFFECT: invention provides technology for more accurate diagnosing faults in exhaust gases control device, having both selective recovery function and filtration function.
4 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD AND DEVICE FOR AUTOMOTIVE SCR CATALYTIC CONVERTER | 2010 |
|
RU2560120C2 |
| FAULT DIAGNOSIS SYSTEM FOR EXHAUST GAS CLEANING EQUIPMENT | 2017 |
|
RU2701031C1 |
| EXHAUST GAS CLEANING SYSTEM FOR INTERNAL COMBUSTION ENGINE | 2019 |
|
RU2703807C1 |
| METHOD AND SYSTEM FOR THE FIRST AND SECOND SUPPLY OF ADDITIVE TO THE FLOW OF EXHAUST GAS FROM THE INTERNAL COMBUSTION ENGINE | 2016 |
|
RU2681870C1 |
| FAULT DIAGNOSTIC UNIT FOR EXHAUST GAS EXTRACTION CONTROL DEVICE | 2014 |
|
RU2623321C1 |
| DEVICE FOR EXHAUST GAS CLEANING DEVICE FAULT DIAGNOSIS | 2014 |
|
RU2624308C1 |
| METHOD AND SYSTEM FOR REDUCING THE NITROGEN OXIDE EMISSIONS WHEN THE ENGINE IS RUNNING (VARIANTS) | 2015 |
|
RU2668593C2 |
| SYSTEM FOR DETERMINING FAILURES OF EXHAUST GAS CLEANING DEVICE | 2013 |
|
RU2597380C1 |
| EXHAUST GAS CLEANING DEVICE FOR INTERNAL COMBUSTION ENGINE AND CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE | 2019 |
|
RU2707239C1 |
| DEVICE FOR EXHAUST GAS CLEANING DEVICE FAULT DIAGNOSIS | 2014 |
|
RU2617503C1 |
