	US 12,253,013 B2
	Method for determining an effective prevailing uncertainty value for an emission value for a given time point when operating a drivetrain of a motor vehicle
Jurij Woelfling, Bietigheim-Bissingen (DE); Roberto Verrino, Stuttgart (DE); Timm Hollmann, Benningen A.N. (DE); and Ralf Knitz, Bietigheim-Bissingen (DE)
Assigned to Robert Bosch GmbH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Feb. 16, 2023, as Appl. No. 18/169,924.
Claims priority of application No. 10 2022 201 661.0 (DE), filed on Feb. 17, 2022.
Prior Publication US 2023/0279800 A1, Sep. 7, 2023
Int. Cl. F01N 11/00 (2006.01)

CPC F01N 11/00 (2013.01)

11 Claims

1. A method for determining an effective prevailing uncertainty value (304, 305) for an emission value (301, 302) for a given time point when operating a drivetrain (100) of a motor vehicle with an internal-combustion engine (110), the method comprising:

determining, for the emission value (301,302) at an initial phase (0<t<t₀) immediately after starting the internal-combustion engine (t>0), prevailing emission values (301) and prevailing uncertainty values (303), wherein the prevailing uncertainty values (303) are tolerances of a computational model (130, 132) determining the prevailing emission values (301),

determining, for the emission value (301,302) at different times (n) following the initial phase, prevailing emission values (301) and prevailing uncertainty values (303), wherein the prevailing uncertainty values (303) are respective tolerances of a sensor (112, 121, 123, 127) or the computational model (130, 132) determining the prevailing emission values (301),

determining the effective prevailing uncertainty value (304, 305) for the given time point based on the prevailing uncertainty values (303) and the prevailing emission values (301) prior to the given time point,

controlling operation of the drivetrain (100) by outputting a control value to the drive train (100) based on the effective prevailing uncertainty value (304, 305).