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1.发明申请公开(公告)号：US20200025054A1
公开(公告)日：2020-01-23
申请号：US16040116
申请日：2018-07-19
发明人： Aaditya Barve , Kwadwo O. Owusu
摘要： An aftertreatment system comprises a housing defining an internal volume. A filter is disposed in the housing and configured to remove particulate matter included in the exhaust gas. A delta pressure sensor configured to measure an inlet apparent pressure value upstream of the filter. An ambient pressure sensor separate from the delta pressure sensor is configured to measure an ambient pressure value of an ambient environment in which the aftertreatment system is located. A controller is configured to receive the inlet apparent pressure value, receive the ambient pressure value from the ambient pressure sensor, determine a relative inlet exhaust pressure value based upon the inlet apparent pressure value and the ambient pressure value, and adjust an exhaust flow rate of the exhaust gas based at least on the relative inlet exhaust pressure value.
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2.发明授权公开(公告)号：US10697344B2
公开(公告)日：2020-06-30
申请号：US16040116
申请日：2018-07-19
发明人： Aaditya Barve , Kwadwo O. Owusu
摘要： An aftertreatment system comprises a housing defining an internal volume. A filter is disposed in the housing and configured to remove particulate matter included in the exhaust gas. A delta pressure sensor configured to measure an inlet apparent pressure value upstream of the filter. An ambient pressure sensor separate from the delta pressure sensor is configured to measure an ambient pressure value of an ambient environment in which the aftertreatment system is located. A controller is configured to receive the inlet apparent pressure value, receive the ambient pressure value from the ambient pressure sensor, determine a relative inlet exhaust pressure value based upon the inlet apparent pressure value and the ambient pressure value, and adjust an exhaust flow rate of the exhaust gas based at least on the relative inlet exhaust pressure value.
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3.发明公开公开(公告)号：US20240218841A1
公开(公告)日：2024-07-04
申请号：US18602931
申请日：2024-03-12
发明人： Swapnali Gujar , Kapil Rajkumar Dhanwani , Kwadwo O. Owusu , Premjee Sasidharan , Alan H. Zhao , Jinqian Gong , Jeffrey Diwakar Abraham , Thomas C. Smith, Jr.
CPC分类号： F02D41/222 , F02D41/1401 , F02D41/1454 , F02D41/1461 , F02D41/2474 , G05B23/0283 , F02D2041/1433
摘要： A method executed by at least one server, comprising: receiving, from a first monitored system comprising an internal combustion engine and a first sensor, a first signal associated with a first occurrence and a second occurrence of an internal combustion engine event and first measurement data of the first sensor; determining a first measurement from the first measurement data and a second measurement from the first measurement data based on the first and second occurrences, respectively; determining a reference measurement; determining a first reference deviation; determining a second reference deviation; after determining the first reference deviation is less than a first reference threshold and the second reference deviation is less than a second reference threshold, determining a measurement deviation; comparing the measurement deviation to a measurement threshold; and after determining the measurement deviation satisfies the measurement threshold, determining a first exhibited useful life of the first sensor.
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公开(公告)号：US20160319725A1
公开(公告)日：2016-11-03
申请号：US14702248
申请日：2015-05-01
发明人： Jaya Chandra-Ramadugu , Farshad Farid , Kwadwo O. Owusu , Sergio Manuel Hernandez-Gonzalez , Joshua Supplee , Andrew Hillery
CPC分类号： F01N9/007 , F01N3/2066 , F01N11/00 , F01N11/007 , F01N2550/02 , F01N2560/021 , F01N2560/025 , F01N2560/026 , F01N2610/02 , F01N2900/1402 , F01N2900/1616 , F01N2900/1621 , Y02T10/24 , Y02T10/47
摘要： An aftertreatment system comprises an exhaust reductant storage tank and a SCR system including a catalyst fluidly coupled thereto. The aftertreatment system also includes a controller configured to interpret an output signal indicative of a catalytic efficiency of the catalyst. The output signal is filtered using a fast filter to obtain a fast filter response signal, and also using a slow filter to obtain a slow filter response signal. It is determined if the fast filter response signal exceeds a first threshold and if the slow filter response signal exceeds a second threshold. In response to determining that the fast filter response signal exceeds the first threshold, and the slow filter signal response exceeds the second threshold, an indication is provided that an improper exhaust reductant is present in the storage tank.
摘要翻译： 后处理系统包括排气还原剂储罐和包括与其流体耦合的催化剂的SCR系统。 后处理系统还包括被配置为解释表示催化剂的催化效率的输出信号的控制器。 使用快速滤波器对输出信号进行滤波以获得快速滤波器响应信号，并且还使用慢滤波器来获得慢滤波器响应信号。 确定快速滤波器响应信号是否超过第一阈值，并且慢速滤波器响应信号是否超过第二阈值。 响应于确定快速过滤器响应信号超过第一阈值，并且慢速过滤器信号响应超过第二阈值，则指示存储罐中存在不正确的废气还原剂。
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5.发明授权公开(公告)号：US11959433B2
公开(公告)日：2024-04-16
申请号：US17868205
申请日：2022-07-19
发明人： Swapnali Gujar , Kapil Rajkumar Dhanwani , Kwadwo O. Owusu , Premjee Sasidharan , Alan H. Zhao , Jinqian Gong , Jeffrey Diwakar Abraham , Thomas C. Smith, Jr.
CPC分类号： F02D41/222 , F02D41/1401 , F02D41/1454 , F02D41/1461 , F02D41/2474 , G05B23/0283 , F02D2041/1433
摘要： At least one server comprising at least one processor coupled to at least one memory storing instructions. The server can receive a first signal from a first monitored system comprising an internal combustion engine and a first sensor, the first signal associated with a first occurrence of an internal combustion engine event, a second occurrence of the internal combustion engine event, and first measurement data of the first sensor. The server can determine a first measurement from the first measurement data. The server can determine a second measurement from the first measurement data. The server can determine a measurement deviation between the first measurement and the second measurement. The server can compare the measurement deviation to a stored measurement threshold. The server can determine a first exhibited useful life of the first sensor based on the measurement deviation and at least one of the first measurement or the second measurement.
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6.发明公开公开(公告)号：US20240026836A1
公开(公告)日：2024-01-25
申请号：US17868205
申请日：2022-07-19
发明人： Swapnali Gujar , Kapil Rajkumar Dhanwani , Kwadwo O. Owusu , Premjee Sasidharan , Alan H. Zhao , Jinqian Gong , Jeffrey Diwakar Abraham , Thomas C. Smith, JR.
CPC分类号： F02D41/222 , F02D41/2474 , F02D41/1401 , F02D41/1461 , F02D41/1454 , F02D2041/1433
摘要： At least one server comprising at least one processor coupled to at least one memory storing instructions. The server can receive a first signal from a first monitored system comprising an internal combustion engine and a first sensor, the first signal associated with a first occurrence of an internal combustion engine event, a second occurrence of the internal combustion engine event, and first measurement data of the first sensor. The server can determine a first measurement from the first measurement data. The server can determine a second measurement from the first measurement data. The server can determine a measurement deviation between the first measurement and the second measurement. The server can compare the measurement deviation to a stored measurement threshold. The server can determine a first exhibited useful life of the first sensor based on the measurement deviation and at least one of the first measurement or the second measurement.
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公开(公告)号：US09926827B2
公开(公告)日：2018-03-27
申请号：US14702248
申请日：2015-05-01
发明人： Jaya Chandra-Ramadugu , Farshad Farid , Kwadwo O. Owusu , Sergio Manuel Hernandez-Gonzalez , Joshua Supplee , Andrew Hillery
CPC分类号： F01N9/007 , F01N3/2066 , F01N11/00 , F01N11/007 , F01N2550/02 , F01N2560/021 , F01N2560/025 , F01N2560/026 , F01N2610/02 , F01N2900/1402 , F01N2900/1616 , F01N2900/1621 , Y02T10/24 , Y02T10/47
摘要： An aftertreatment system comprises an exhaust reductant storage tank and a SCR system including a catalyst fluidly coupled thereto. The aftertreatment system also includes a controller configured to interpret an output signal indicative of a catalytic efficiency of the catalyst. The output signal is filtered using a fast filter to obtain a fast filter response signal, and also using a slow filter to obtain a slow filter response signal. It is determined if the fast filter response signal exceeds a first threshold and if the slow filter response signal exceeds a second threshold. In response to determining that the fast filter response signal exceeds the first threshold, and the slow filter signal response exceeds the second threshold, an indication is provided that an improper exhaust reductant is present in the storage tank.
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