公开(公告)号：US20230032803A1

公开(公告)日：2023-02-02

申请号：US17872616

申请日：2022-07-25

申请人： Robert Bosch GmbH

发明人： Thomas Zein ,  Jan Kappa ,  Markus Thanner

IPC分类号： F01N11/00

摘要： A method for determining a conversion capability of one or multiple exhaust gas catalytic converters, downstream from an internal combustion engine. The method includes ascertaining a respective local temperature at multiple locations within the one or the multiple catalytic converters, ascertaining a local conversion capability for a section or a partial volume of the one or the multiple catalytic converters based on the local temperature, and ascertaining a global conversion capability of the one or the multiple catalytic converters based on the ascertained local conversion capabilities. A processing unit and a computer program product for carrying out such a method are also described.

公开(公告)号：US11814996B2

公开(公告)日：2023-11-14

申请号：US17575077

申请日：2022-01-13

申请人： Robert Bosch GmbH

发明人： Beate Rittmann ,  Jan Kappa ,  Marcel Alexander Schneck ,  Michael Bachner

IPC分类号： F02D41/02 ,  F01N3/20

CPC分类号： F01N3/2013 ,  F01N3/2033 ,  F02D41/024 ,  F02D2200/0802

摘要： A method (200) for operating an exhaust-gas catalytic converter (130) with central coordination of heating measures that are intended to heat the exhaust-gas catalytic converter (130) to a temperature level at which the reactions to be catalyzed take place with an adequate reaction rate (so-called catalytic converter window). Through the central coordination of the heating measures on the basis of defined heating strategies, in which in each case one or more of the available heating measures are combined with one another in an expedient manner, the required outlay in terms of control can be considerably reduced, and mutual interference of the heating measures can be avoided.

公开(公告)号：US11808226B2

公开(公告)日：2023-11-07

申请号：US17960366

申请日：2022-10-05

申请人： Robert Bosch GmbH

发明人： Alexander Baumann ,  Frank Meier ,  Jan Kappa

IPC分类号： F02D41/02 ,  F02D41/14

CPC分类号： F02D41/0295 ,  F02D41/1454 ,  F02D41/1475 ,  F02D2200/0814

摘要： A method (200) for operating an exhaust gas system (120) that includes a first catalytic converter (122) and at least one second catalytic converter (124), which are both arranged downstream from an internal combustion engine (110) The internal combustion engine (110) is controlled to generate a rich exhaust gas having a first rich gas portion, (220) a fill level of the second catalytic converter (124) is ascertained with respect to at least one lean gas component that is storable in the second catalytic converter and, if the ascertained fill level drops below (230) a minimum fill level, (240) the internal combustion engine (110) is controlled to generate a lean exhaust gas. The internal combustion engine (110) is then controlled to generate a rich exhaust gas having a second rich gas portion, and subsequently controlled (210) to generate the rich exhaust gas having the first rich gas portion.

公开(公告)号：US20220228519A1

公开(公告)日：2022-07-21

申请号：US17575077

申请日：2022-01-13

申请人： Robert Bosch GmbH

发明人： Beate Rittmann ,  Jan Kappa ,  Marcel Alexander Schneck ,  Michael Bachner

IPC分类号： F01N3/20 ,  F02D41/02

摘要： A method (200) for operating an exhaust-gas catalytic converter (130) with central coordination of heating measures that are intended to heat the exhaust-gas catalytic converter (130) to a temperature level at which the reactions to be catalyzed take place with an adequate reaction rate (so-called catalytic converter window). Through the central coordination of the heating measures on the basis of defined heating strategies, in which in each case one or more of the available heating measures are combined with one another in an expedient manner, the required outlay in terms of control can be considerably reduced, and mutual interference of the heating measures can be avoided.

公开(公告)号：US11933206B2

公开(公告)日：2024-03-19

申请号：US17872616

申请日：2022-07-25

申请人： Robert Bosch GmbH

发明人： Thomas Zein ,  Jan Kappa ,  Markus Thanner

IPC分类号： F01N11/00

CPC分类号： F01N11/005 ,  F01N2550/02 ,  F01N2900/0406 ,  F01N2900/1602

摘要： A method for determining a conversion capability of one or multiple exhaust gas catalytic converters, downstream from an internal combustion engine. The method includes ascertaining a respective local temperature at multiple locations within the one or the multiple catalytic converters, ascertaining a local conversion capability for a section or a partial volume of the one or the multiple catalytic converters based on the local temperature, and ascertaining a global conversion capability of the one or the multiple catalytic converters based on the ascertained local conversion capabilities. A processing unit and a computer program product for carrying out such a method are also described.

公开(公告)号：US20230022334A1

公开(公告)日：2023-01-26

申请号：US17843351

申请日：2022-06-17

申请人： Robert Bosch GmbH

发明人： Frank Ottusch ,  Jan Kappa ,  Jurij Woelfling ,  Kosuke Tamanoi ,  Roberto Verrino ,  Timm Hollmann

IPC分类号： F02D41/02 ,  F02D41/14

摘要： The invention concerns a method (200) for operating a motor vehicle (100) with a combustion engine (110), including the determination (210) of a current operating state of the vehicle (100), the determination (220) of an emission state of the vehicle (100) during the determined operating state, carrying out (230) at least one measure to reduce emissions depending on the emission state and evaluating (240) the at least one measure in connection with the operating state with regard to its success in reducing emissions. Furthermore, a computing unit (130) and a computer program product for carrying out such a method (200) are proposed.