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公开(公告)号：US12104511B2
公开(公告)日：2024-10-01
申请号：US18390102
申请日：2023-12-20
申请人： Robert Bosch GmbH
发明人： Elke Baeder , Sascha Giese , Thomas Zein , Michael Stein , Patrick Thierfelder
CPC分类号： F01N11/005 , F01N3/20 , F01N9/005 , F01N2900/0412 , F01N2900/0414 , F01N2900/0601 , F01N2900/10 , F01N2900/1402 , F01N2900/1411 , F01N2900/1621 , F01N2900/1624 , F01N2900/1631
摘要： A method for calculating reaction heat in an exhaust system of an internal combustion engine by means of a model, comprising a first model component and a second model component, wherein the first model component refers to a calculation of exhaust components flowing from valves of the internal combustion engine, the second model component relates to the entire exhaust system, and total masses from the first model component are divided along the exhaust system onto the individual components of the exhaust system.
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公开(公告)号：US20240254909A1
公开(公告)日：2024-08-01
申请号：US18561812
申请日：2022-05-18
申请人： Cummins Inc.
发明人： Kartavya Neema , Chinmay Rao , Rohit A. Zope , Gayatri Adi , Paul V. Moonjelly
IPC分类号： F01N11/00
CPC分类号： F01N11/002 , F01N11/007 , F01N2900/0412 , F01N2900/08 , F01N2900/1402 , F01N2900/1404
摘要： Disclosed herein are devices, systems, and methods relating to balancing engine performance and engine emissions of an engine in a vehicle in real time. In an example, a method can include sensing operation data indicative of an engine response during a current engine operation. The current ending operation can include a supervisory control of engine emissions. The method can include evaluating a response model to determine engine performance deviation data corresponding to an expected baseline engine performance and an expected current engine performance at the current engine operation. This evaluation can be performed via controller. This evaluation can be based on the operation data. The method can include generating and setting a performance constraint in response to evaluating the response model. The performance constraint can be set such that the engine performance deviation data is maintained at a controls objective that inhibits deterioration of the engine performance over time.
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公开(公告)号：US11976603B2
公开(公告)日：2024-05-07
申请号：US18098907
申请日：2023-01-19
发明人： Martin Wilhelmsson , Dan Stenqvist , Irman Svraka
CPC分类号： F02D41/024 , F02D41/062 , F01N3/2006 , F01N2410/06 , F01N2900/04 , F01N2900/0412 , F01N2900/0418 , F01N2900/0421 , F01N2900/0422 , F01N2900/1404 , F01N2900/1626 , F02D2200/0802 , F02D2250/36 , F02N11/0855 , F02N2200/026
摘要： A method performed by a control unit in connection with a pre-heating process of an aftertreatment system for a combustion engine is provided. The control unit obtains a scheduled start time of the combustion engine. The control unit schedules a pre-heating of the aftertreatment system to be completed before the scheduled start time. The control unit detects a start of the combustion engine at an actual start time. In response to the detected start of the combustion engine, and using the actual and scheduled start times, the control unit determines whether the scheduled pre-heating of the aftertreatment system fulfils one or more success criteria. When the one or more success criteria are fulfilled, the control unit triggers a performance increase of the combustion engine.
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公开(公告)号：US11879406B2
公开(公告)日：2024-01-23
申请号：US18170318
申请日：2023-02-16
申请人： Robert Bosch GmbH
发明人： Michael Fey
CPC分类号： F02D41/0295 , F01N9/005 , F01N11/007 , F02D41/1441 , F02D41/1454 , F02D41/1476 , F01N3/101 , F01N2560/025 , F01N2560/14 , F01N2900/0408 , F01N2900/0412 , F01N2900/1402 , F01N2900/1624 , F02D41/1487 , F02D2041/1433 , F02D2200/0814 , F02D2200/0816
摘要： A method for operating an internal-combustion engine having an exhaust gas catalyst, a first exhaust gas sensor upstream of the exhaust gas catalyst and a second exhaust gas sensor downstream of the exhaust gas catalyst. A fill level of an exhaust gas component that can be stored in the exhaust gas catalyst is determined using a theoretical catalyst model, into which, as the input value, a signal of the first exhaust gas sensor (a first signal); a signal of the second exhaust gas sensor (a second signal); and a target signal are provided. The target signal corresponds to the signal that would be expected at the determined fill level in the exhaust gas catalyst. The catalyst model is reinitiated when the deviation of the second signal from the target signal exceeds a predetermined threshold value. The fill level is also regulated, and an air-fuel mixture is adjusted.
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公开(公告)号：US11773798B1
公开(公告)日：2023-10-03
申请号：US18060826
申请日：2022-12-01
申请人： Caterpillar Inc.
CPC分类号： F02D41/025 , F02D41/1458 , F01N3/0842 , F01N3/208 , F01N2560/026 , F01N2900/0412 , F02D2200/0806
摘要： A machine includes an engine, a selective catalytic reduction (SCR) element fixedly connected to an output of the engine, and a controller. The controller is communicatively coupled to the engine and a sensor at an output of the SCR element. The controller is configured to calculate an estimated amount of emissions at a location of the SCR element, calculate an estimated amount of emissions from an output of the SCR element, measure, using the sensor, an actual amount of emissions from the output of the SCR element, and perform a comparison of the estimated amount of emissions and the actual amount of emissions. The controller is further configured to adjust, based on the comparison, the estimated amount of emissions at the location of the SCR element, and control operation of the engine based on the adjusted amount of emissions.
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公开(公告)号：US11753977B2
公开(公告)日：2023-09-12
申请号：US17689542
申请日：2022-03-08
CPC分类号： F01N3/0885 , F01N3/0814 , F01N3/2066 , F01N3/0807 , F01N2240/18 , F01N2250/12 , F01N2560/026 , F01N2570/14 , F01N2900/0412 , F01N2900/0601 , F01N2900/10 , F01N2900/102 , F01N2900/1602 , F01N2900/1614 , F01N2900/1621 , F01N2900/1622 , F02D41/0275 , F02D2200/0806 , F02D2200/0811
摘要： A control system for a vehicle, the control system comprising one or more controllers, the control system being arranged to: determine a prediction of an end of a current driving cycle of the vehicle, determine a likelihood of slippage from an emissions trap of the vehicle in a next driving cycle of the vehicle in dependence on the prediction of the end of the current driving cycle, and control purging of the emissions trap prior to the prediction of the end of the current driving cycle in dependence on the likelihood of slippage.
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公开(公告)号：US11649754B2
公开(公告)日：2023-05-16
申请号：US17809853
申请日：2022-06-29
CPC分类号： F01N3/2033 , F01N3/32 , F01N3/36 , F01N2240/14 , F01N2610/03 , F01N2900/0408 , F01N2900/0412 , F01N2900/08 , F01N2900/12 , F01N2900/1402
摘要： A method to control a burner for an exhaust system of an internal combustion engine with an exhaust gas after-treatment system including at least one catalytic converter. The method provides the steps of calculating the thermal power needed to reach the nominal operating temperature of the at least one catalytic converter and determining an actual number of revolutions with which to operate a fresh air pumping device based on the sum of a nominal number of revolutions, a closed-loop contribution of the number of revolutions with which to operate the fresh air pumping device, and a further contribution of the number of revolutions with which to operate the fresh air pumping device in order to ensure optimal thermal power exiting the burner.
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8.发明申请公开(公告)号：US20190218953A1
公开(公告)日：2019-07-18
申请号：US16247109
申请日：2019-01-14
CPC分类号： F01N9/002 , F01N2550/04 , F01N2560/07 , F01N2900/0412 , F01N2900/0416 , F01N2900/1402 , F01N2900/1411 , F01N2900/1606
摘要： It is described a method to control the amount of particulate coming out of a particulate filter for an internal combustion engine comprising: estimating an objective value of the amount of particulate coming out of the particulate filter; determining an amount of particulate trapped in the particular filter, which allows reaching said objective value of the amount of particulate coming out of the particulate filter; and adjusting an amount of particulate produced by the internal combustion engine and/or an amount of particulate burnt in the particulate filter based on said amount of trapped particulate.
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公开(公告)号：US09909517B2
公开(公告)日：2018-03-06
申请号：US15358853
申请日：2016-11-22
申请人： Cummins Inc.
CPC分类号： F02D41/0235 , F01N3/2066 , F01N11/00 , F01N2550/02 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/1411 , F01N2900/1602 , F01N2900/1621 , F01N2900/1626 , F02D41/2416 , F02D41/2422 , F02D41/26 , F02D2200/0802 , F02D2200/101 , Y02T10/24 , Y02T10/47
摘要： An electronic control system is adapted to control a system including an internal combustion engine and an exhaust aftertreatment system including an SCR catalyst. The electronic control system provides a first dynamically determined weighting factor in response to performing a selected one of a plurality of calculations, determines an operating mode of the engine in response to an engine load and an engine speed, selects one of a plurality of inputs in response to the operating mode of the engine to provide an interpolation weighting factor, the plurality of inputs including the first dynamically determined weighting factor and one or more predetermined weighting factors, utilizes the interpolation weighting factor to interpolate between a first set of combustion control data and a second set of combustion control data to determine a set of combustion control values, and controls operation of the engine using the set of combustion control values.
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公开(公告)号：US09903247B2
公开(公告)日：2018-02-27
申请号：US14985736
申请日：2015-12-31
发明人： Royce V. Koshy , Shireen Faizi , Jeremy D. Harris , Aditya Hegde
CPC分类号： F01N3/208 , F01N3/2066 , F01N2610/02 , F01N2610/1453 , F01N2900/0412 , F01N2900/08 , F01N2900/1404 , F01N2900/1411 , Y02T10/24
摘要： A system for apportioning reductant dosing amounts in multi-doser architectures includes an engine, an aftertreatment system in fluid communication with the engine, and a controller. The aftertreatment system includes a first doser configured to dose reductant into a first decomposition reaction member and a second doser configured to dose reductant into a second decomposition reaction member. The controller receives engine operating conditions and determines a total reductant amount based on the engine operating conditions. The controller also apportions the total reductant amount into a first apportioned reductant amount based on a first maximum reductant dosing amount for the first doser and a second apportioned reductant amount based on a second maximum reductant dosing amount for the second doser. The controller outputs a first apportioned reductant dosing command to the first doser and a second apportioned reductant dosing command to the second doser.
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