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1.发明授权公开(公告)号：US12116914B2
公开(公告)日：2024-10-15
申请号：US17804694
申请日：2022-05-31
发明人： Jaroslav Lipa
CPC分类号： F01N11/00 , F01N3/32 , F01N2900/04 , F01N2900/1804
摘要： The disclosure relates to a method and a device for diagnosing coking of a secondary air system of an internal combustion engine. The secondary air system has an intake air line for providing secondary air, a secondary air pump for compressing the secondary air, a secondary air valve for controlling the secondary air injection, a pressure sensor that is arranged in the secondary air system downstream of the secondary air pump and upstream of the secondary air valve, and an injection line for injecting the secondary air into an exhaust tract of the internal combustion engine.
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公开(公告)号：US20240328341A1
公开(公告)日：2024-10-03
申请号：US18192822
申请日：2023-03-30
申请人： FCA US LLC
发明人： Matthew T. Bartlett , Michael Wiland , Tim Scott
摘要： A thermal accumulator assembly (TAA) for a vehicle waste heat recovery system (WHRS) utilizing a two-phase coolant includes a hermetically sealed housing having a separator plate dividing an interior of the housing into a higher pressure first chamber and a lower pressure second chamber. A pressure control valve is disposed between the first and second chambers. A first inlet port is connected to the first chamber and configured to receive a first flow of coolant. A first outlet port is connected to the first chamber and configured to a second flow of liquid coolant to a heat generating component in the WHRS. A second inlet port is connected to the first chamber and configured to receive a third flow of heated coolant from the heat generating component. A second outlet port is connected to the second chamber and configured to supply a fourth flow of vapor coolant to the WHRS.
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公开(公告)号：US12055114B2
公开(公告)日：2024-08-06
申请号：US18487757
申请日：2023-10-16
申请人： Cummins Inc.
CPC分类号： F02D41/222 , F01N3/2066 , F01N11/00 , F02D41/1463 , F01N2550/05 , F01N2560/026 , F01N2610/00 , F01N2900/0416 , F01N2900/1402 , F01N2900/1821 , F02D2200/08
摘要： Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.
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公开(公告)号：US12012886B1
公开(公告)日：2024-06-18
申请号：US18156077
申请日：2023-01-18
发明人： Sarah Funk , David P Quigley
CPC分类号： F01N3/208 , F01N3/035 , F01N11/00 , F01N2550/05 , F01N2560/021 , F01N2560/026
摘要： Methods and systems for controlling treatment of exhaust in a emission control system of a platform having a combustion system is provided. In an exemplary embodiment, the method includes estimating, via a processor, an amount of soot in exhaust from the combustion system; and controlling, via the processor, treatment of the exhaust based on the amount of soot in the exhaust.
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公开(公告)号：US12012881B2
公开(公告)日：2024-06-18
申请号：US17597119
申请日：2020-08-18
CPC分类号： F01N11/007 , F01N11/00 , F01N2550/02
摘要： A method determines a sensor error of a sensor in an exhaust gas system of a motor vehicle. One step of the method involves determining at least one actual sensor signal of the sensor. Another step of the method involves determining at least one target sensor signal of the sensor by means of a model. A further step of the method involves determining the sensor error of the sensor according to a deviation between the actual sensor signal of the sensor and the target sensor signal of the sensor.
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公开(公告)号：US20240167415A1
公开(公告)日：2024-05-23
申请号：US18425995
申请日：2024-01-29
申请人： Arctic Cat Inc.
IPC分类号： F01N13/10 , B60K13/04 , F01N11/00 , F01N13/00 , F01N13/08 , F16H9/14 , F16H55/56 , F16H57/027 , F16H57/035 , F16H57/04
CPC分类号： F01N13/10 , B60K13/04 , F01N11/00 , F01N11/007 , F01N13/008 , F01N13/08 , F16H9/14 , F16H55/56 , F16H57/027 , F16H57/035 , F16H57/0416 , F16H57/0467 , F16H57/0489 , F01N2260/02 , F01N2260/022 , F01N2560/025 , F01N2560/20 , F01N2590/04
摘要： Methods, systems, and vehicles that control the temperature of a device included in the vehicle are presented herein. The temperature of the device is controlled by ventilating the device with drivetrain air, such as transmission cooling air. In some embodiments, the device is at a greater temperature than the drivetrain air, which cools the device. In other embodiments, the device is at a lesser temperature than the drivetrain air, which heats the device. The drivetrain air is provided to the device through an exhaust duct coupled to the vehicle's transmission. The drivetrain exhaust air is preferably circulated by the transmission. The transmission may be a continuously variable transmission. The device may be an oxygen sensor that is coupled to an engine exhaust pipe. The oxygen sensor is thermally coupled to the engine exhaust and the engine exhaust pipe, which are at greater temperatures than the transmission exhaust air.
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公开(公告)号：US11982604B2
公开(公告)日：2024-05-14
申请号：US17309002
申请日：2019-10-08
发明人： Tritti Siengchum , James M Ralph
CPC分类号： G01N1/405 , G01N30/72 , G01N33/0054 , G01N33/388 , F01N11/00 , G01N2001/028
摘要： Methods and systems of analyzing and quantifying a surface acidity on a low surface area sample are disclosed. The methods include analyzing a quantity of an effluent molecular probe desorption from a temperature programmed desorption (TPD) process and system, by employing a mass spectroscopy (MS) system. The molecular probe is chemically adsorbed on a clean surface of the sample before the TPD process. The sample has a surface area to mass ratio of less than 5 m2/g. In some embodiments, the total surface area analyzed in the method can be as low as 3 m2.
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公开(公告)号：US11981780B2
公开(公告)日：2024-05-14
申请号：US16606143
申请日：2018-04-18
发明人： Won Jong Kim , Junghong Park
CPC分类号： C08J3/075 , C08J3/24 , F01N11/00 , C08J2387/00 , F01N2570/12 , G02C7/04
摘要： The present invention relates to a polymeric gel comprising crosslink points, which are dissociated in response to nitrogen monoxide, and to a method for preparing a hydrogel, the method comprising the steps of: a) polymerizing a mixture of monomers comprising a monofunctional hydrophilic monomer and a monomer comprising a plurality of functional groups comprising an o-phenylenediamine residue; and b) separating a hydrogel formed by the polymerization.
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9.发明公开公开(公告)号：US20240068421A1
公开(公告)日：2024-02-29
申请号：US18239347
申请日：2023-08-29
申请人： Scania CV AB
发明人： Mikael Lundström
CPC分类号： F02D41/22 , F01N3/2066 , F01N11/00 , F02D41/1463 , F01N2560/026 , F01N2900/1402
摘要： A method of diagnosing an operational performance of a combustion engine assembly is disclosed, the combustion engine assembly comprising a combustion engine, and an exhaust system. The exhaust system comprises a SCR catalyst and a NOx sensor arranged downstream of the SCR catalyst. The method comprises the steps of providing a first NOx value (v1) using the NOx sensor during a supply period (p1) of an exhaust additive, providing a second NOx value (v2) using the NOx sensor during a stop period (p2) of a supply of exhaust additive, and diagnosing the operational performance of the combustion engine assembly based on a ratio between the first and second NOx values (v1, v2). The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, a combustion engine assembly, and a vehicle.
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公开(公告)号：US20240035426A1
公开(公告)日：2024-02-01
申请号：US18487757
申请日：2023-10-16
申请人： Cummins Inc.
CPC分类号： F02D41/222 , F02D41/1463 , F01N11/00 , F01N2550/05 , F01N2560/026 , F01N2900/1821 , F02D2200/08
摘要： Systems and methods for diagnosing an exhaust aftertreatment system are provided. A method includes: receiving, by a controller and for each sensor of a plurality of sensors, one or more respective degradation level indicators indicative of one or more failure levels of the sensor, each of the one or more degradation level indicators determined using a corresponding performance parameter; receiving, by the controller and for each sensor of the plurality of sensors, one or more diagnosis threshold values; determining, by the controller, a multipoint diagnosis threshold value using the one or more diagnosis threshold values associated with the plurality of sensors; detecting, by the controller, an operational state of the aftertreatment system by comparing a performance value of the aftertreatment system to the multipoint diagnosis threshold value; and causing, by the controller, an indication of the operational state of the aftertreatment system to be displayed on a display device.
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