US 11,898,476 B2
Method for predicting soot build-up in an engine system
Nina Lönn, Torslanda (SE); Arlena Amiri, Gothenburg (SE); Viktor Palmqvist Berntsson, Gothenburg (SE); Jakob Heide, Gothenburg (SE); and Johan Assiks, Hindås (SE)
Assigned to VOLVO PENTA CORPORATION, Gothenburg (SE)
Filed by VOLVO PENTA CORPORATION, Gothenburg (SE)
Filed on Oct. 17, 2022, as Appl. No. 18/047,203.
Claims priority of application No. 21203411 (EP), filed on Oct. 19, 2021.
Prior Publication US 2023/0121134 A1, Apr. 20, 2023
Int. Cl. F01N 11/00 (2006.01); G01M 15/04 (2006.01); G01M 15/05 (2006.01)
CPC F01N 11/002 (2013.01) [G01M 15/048 (2013.01); G01M 15/05 (2013.01); F01N 2550/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. Method for predicting soot build-up in an engine system when operating according to an intended drive cycle, wherein the engine system comprises an internal combustion engine and an exhaust gas aftertreatment system provided with a particulate filter, the method comprising:
providing data representing engine operational conditions for the internal combustion engine during the intended drive cycle, wherein the data comprises values for at least engine speed and engine torque distributed over a time period representing the intended drive cycle;
determining a working temperature for the exhaust gas aftertreatment system during the intended drive cycle based on the data representing the engine operational conditions;
providing a reference relation between working temperature of the exhaust gas aftertreatment system and a corresponding estimated magnitude of a build-up of soot in the exhaust gas aftertreatment system; and
predicting soot build-up in the engine system when operating according to the intended drive cycle by comparing the determined working temperature for the exhaust gas aftertreatment system with the reference relation.