US 12,345,192 B2
Method for controlling at least a part of an exhaust after treatment system of a vehicle
Irman Svraka, Gothenburg (SE); Åsa Högström, Gothenburg (SE); Björn Henriksson, Gothenburg (SE); and Tobias Husberg, Kareby (SE)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed by Volvo Truck Corporation, Gothenburg (SE)
Filed on Oct. 22, 2024, as Appl. No. 18/923,544.
Claims priority of application No. 2351319-5 (SE), filed on Nov. 17, 2023.
Prior Publication US 2025/0163839 A1, May 22, 2025
Int. Cl. F01N 3/20 (2006.01)
CPC F01N 3/208 (2013.01) [F01N 3/2073 (2013.01); F01N 2610/02 (2013.01); F01N 2900/12 (2013.01); F01N 2900/1616 (2013.01); F01N 2900/1622 (2013.01); F01N 2900/1814 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer system comprising processing circuitry configured to:
determine predicted vehicle operational information for a vehicle associated with the computer system including at least predicted travel route for the vehicle, a predicted shutdown of a combustion engine of the vehicle along the predicted travel route, and a predicted subsequent re-start of the combustion engine;
determine a topography of the predicted travel route subsequent to the predicted re-start of the combustion engine;
determine a set ammonia storage level threshold of a selective catalytic reduction, SCR, catalyst arranged in an exhaust after treatment system to the combustion engine in response to the topography of the predicted travel route subsequent to the predicted combustion engine re-start; and
control an injector of the exhaust after treatment system to inject a predetermined amount of reductant for providing ammonia to the SCR catalyst and achieving the set ammonia storage level threshold prior to shutdown of the combustion engine.