公开(公告)号：US20230318516A1

公开(公告)日：2023-10-05

申请号：US17709653

申请日：2022-03-31

申请人： Cummins Inc.

发明人： David B. Snyder ,  Andrew W. Osburn ,  Anant Puri

IPC分类号： H02P29/60 ,  G07C5/08 ,  B60W20/00 ,  B60W50/00 ,  B60K6/28 ,  B60K11/02

CPC分类号： H02P29/60 ,  G07C5/0808 ,  B60W20/00 ,  B60W50/00 ,  B60K6/28 ,  B60K11/02 ,  B60W2510/087 ,  B60W2510/081 ,  B60W2510/083 ,  B60W2050/0026

摘要： A controller for controlling flow of coolant to one or more components of a vehicle is disclosed. The controller determines respective amounts of heat expected to be rejected by the one or more components of the vehicle in a steady state of operation at current operating conditions of the one or more components, and generates a feedforward flow control signal based at least in part on the determined amounts of heat and a target temperature for the one or more components. The controller generates a controller output signal based at least in part on the feedforward control signal, and provides the controller output signal to the cooling system to control flow of coolant to the one or more components of the vehicle from the cooling system in accordance with the determined amounts of heat expected to be rejected by the one or more components of the vehicle.

公开(公告)号：US20180003098A1

公开(公告)日：2018-01-04

申请号：US15708788

申请日：2017-09-19

申请人： Cummins, Inc.

发明人： Andrew W. Osburn ,  Christopher Ferguson ,  Tony James Hall ,  Brian P. Liimatta

IPC分类号： F01N11/00 ,  F01N3/20

CPC分类号： F01N11/00 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2900/1402 ,  Y02T10/24 ,  Y02T10/47

摘要： A method for diagnosing NOx sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (SCR) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an engine to adjust an engine out nitrogen oxide (NOx) amount; receiving measured SCR inlet NOx data from a SCR inlet NOx sensor and measured SCR outlet NOx data from a SCR outlet NOx sensor; determining a phase shift between the measured SCR inlet and SCR outlet NOx data; applying the determined phase shift to the SCR outlet NOx data; and determining a diagnostic feature based on the SCR inlet NOx data and the phase shifted SCR outlet NOx data regarding a state of the SCR inlet and outlet NOx sensors.

公开(公告)号：US09784166B2

公开(公告)日：2017-10-10

申请号：US14586174

申请日：2014-12-30

申请人： Cummins, Inc.

发明人： Andrew W. Osburn ,  Christopher Ferguson ,  Tony James Hall ,  Brian P. Liimatta

IPC分类号： F01N3/00 ,  F01N3/10 ,  F01N11/00 ,  F01N3/20

CPC分类号： F01N11/00 ,  F01N3/2066 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2900/1402 ,  Y02T10/24 ,  Y02T10/47

摘要： A method for diagnosing NOx sensors in an exhaust aftertreatment system includes suspending reductant dosing in an exhaust aftertreatment system; purging a reductant deposit in a selective catalytic reduction (SCR) system of the exhaust aftertreatment system; adjusting at least one of an ignition timing and an engine speed for an engine to adjust an engine out nitrogen oxide (NOx) amount; receiving measured SCR inlet NOx data from a SCR inlet NOx sensor and measured SCR outlet NOx data from a SCR outlet NOx sensor; determining a phase shift between the measured SCR inlet and SCR outlet NOx data; applying the determined phase shift to the SCR outlet NOx data; and determining a diagnostic feature based on the SCR inlet NOx data and the phase shifted SCR outlet NOx data regarding a state of the SCR inlet and outlet NOx sensors.

公开(公告)号：US20130131955A1

公开(公告)日：2013-05-23

申请号：US13646891

申请日：2012-10-08

申请人： Cummins Inc.

发明人： Ashwin Vyas ,  Vivek A. Sujan ,  Andrew W. Osburn ,  Abdul Ofoli ,  Govindarajan Kothandaraman ,  Karim Azizou

IPC分类号： F02D41/00

CPC分类号： F02D41/0002 ,  F02D41/18 ,  F02D41/222 ,  F02D41/2474

摘要： Systems and methods for correcting mass airflow sensor drift include an operation conditions module to interpret a base calibration function, a MAF sensor input value, and a current operating condition. A MAF correction module determines an expected MAF value in response to the current operating condition and a predetermined operating condition. The MAF correction module will also determine an adjusted MAF value in response to the expected MAF value, the base calibration function, and the MAF sensor input value. A MAF reporting module is structured to provide the adjusted MAF value.

摘要翻译： 用于校正质量气流传感器漂移的系统和方法包括解释基准校准功能，MAF传感器输入值和当前操作条件的操作条件模块。 MAF校正模块响应于当前操作条件和预定操作条件确定预期MAF值。 MAF校正模块还将根据预期的MAF值，基准校准功能和MAF传感器输入值确定调整的MAF值。 MAF报告模块的结构是提供调整后的MAF值。

公开(公告)号：US12128898B2

公开(公告)日：2024-10-29

申请号：US17337016

申请日：2021-06-02

申请人： Cummins Inc.

发明人： Kristopher R. Bare ,  Kenneth M. Follen ,  Xing Jin ,  Jinyong Luo ,  Manik Narula ,  Andrew W. Osburn ,  Anant Puri ,  Xiaobo Song ,  Ying Yuan

IPC分类号： B60W20/00 ,  B60W20/20 ,  B60W20/30 ,  B60W30/18 ,  F02M31/12

CPC分类号： B60W30/18127 ,  B60W20/20 ,  B60W20/30 ,  F02M31/12

摘要： A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.

公开(公告)号：US10001042B2

公开(公告)日：2018-06-19

申请号：US14589339

申请日：2015-01-05

申请人： Cummins Inc.

发明人： Phanindra V. Garimella ,  Andrew W. Osburn

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2610/02 ,  F01N2900/0404 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24

摘要： Systems, methods and apparatus disclosed that include an internal combustion engine and an exhaust system that includes an exhaust aftertreatment system with an SCR catalyst. A NOx sensor downstream of the SCR catalyst is provided along with techniques for estimating an amount of NOx and NH3 at the tailpipe to decouple the impact of cross-sensitivity of the NOx sensor to NOx and NH3. Feedback control of the reductant dosing amount based on these estimates is also provided.

公开(公告)号：US09850796B2

公开(公告)日：2017-12-26

申请号：US15216913

申请日：2016-07-22

申请人： Cummins, Inc.

发明人： Andrew W. Osburn ,  Mark N. Bays ,  Krishna Kamasamudram ,  Aleksey Yezerets

IPC分类号： F01N3/00 ,  F01N3/02 ,  F01N3/10 ,  F01N3/20 ,  F01N3/18 ,  F01N11/00 ,  F01N3/035 ,  F01N13/00 ,  B01D53/94 ,  G01M15/10

CPC分类号： F01N3/2006 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/20 ,  B01D2255/904 ,  B01D2255/915 ,  F01N3/035 ,  F01N3/10 ,  F01N3/103 ,  F01N3/106 ,  F01N3/18 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/1493 ,  F01N2900/1602 ,  F01N2900/1621 ,  G01M15/102 ,  Y02T10/24 ,  Y02T10/47

摘要： An apparatus includes a dosing module structured to suspend dosing in an exhaust aftertreatment system; a selective catalytic reduction (SCR) inlet NOx module structured to interpret SCR inlet NOx data and an SCR inlet temperature; a SCR outlet NOx module structured to interpret SCR outlet NOx data; and a system diagnostic module structured to determine an efficiency of a SCR system based on the SCR inlet and outlet NOx data over a range of SCR temperatures, wherein the system diagnostic module is further structured to determine a state of at least one of a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and the SCR system based on the SCR efficiency at an elevated SCR temperature range and the SCR efficiency at a relatively lower SCR temperature range relative to a high SCR efficiency threshold and a low SCR efficiency threshold.

公开(公告)号：US20160326928A1

公开(公告)日：2016-11-10

申请号：US15216913

申请日：2016-07-22

申请人： Cummins, Inc.

发明人： Andrew W. Osburn ,  Mark N. Bays ,  Krishna Kamasamudram ,  Aleksey Yezerets

IPC分类号： F01N3/20 ,  G01M15/10 ,  F01N11/00 ,  B01D53/94 ,  F01N3/10 ,  F01N3/035

CPC分类号： F01N3/2006 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/20 ,  B01D2255/904 ,  B01D2255/915 ,  F01N3/035 ,  F01N3/10 ,  F01N3/103 ,  F01N3/106 ,  F01N3/18 ,  F01N3/2066 ,  F01N3/208 ,  F01N11/00 ,  F01N11/002 ,  F01N13/009 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2610/1493 ,  F01N2900/1602 ,  F01N2900/1621 ,  G01M15/102 ,  Y02T10/24 ,  Y02T10/47

摘要： An apparatus includes a dosing module structured to suspend dosing in an exhaust aftertreatment system; a selective catalytic reduction (SCR) inlet NOx module structured to interpret SCR inlet NOx data and an SCR inlet temperature; a SCR outlet NOx module structured to interpret SCR outlet NOx data; and a system diagnostic module structured to determine an efficiency of a SCR system based on the SCR inlet and outlet NOx data over a range of SCR temperatures, wherein the system diagnostic module is further structured to determine a state of at least one of a diesel oxidation catalyst (DOC), a diesel particulate filter (DPF), and the SCR system based on the SCR efficiency at an elevated SCR temperature range and the SCR efficiency at a relatively lower SCR temperature range relative to a high SCR efficiency threshold and a low SCR efficiency threshold.

摘要翻译： 一种装置包括：配置模块，其被配置为在排气后处理系统中暂停配量; 构造成用于解释SCR入口NOx数据和SCR入口温度的选择性催化还原（SCR）入口NOx模块; 构造成用于解释SCR出口NOx数据的SCR出口NOx模块; 以及系统诊断模块，其被构造成基于SCR温度范围内的SCR入口和出口NOx数据来确定SCR系统的效率，其中所述系统诊断模块进一步被构造为确定柴油氧化物中的至少一种的状态 催化剂（DOC），柴油微粒过滤器（DPF）和基于SCR升高的SCR温度范围内的SCR效率的SCR系统，以及相对于高SCR效率阈值和低SCR效率阈值的SCR相对较低的SCR温度范围内的SCR效率 效率阈值。

公开(公告)号：US09086025B2

公开(公告)日：2015-07-21

申请号：US13646891

申请日：2012-10-08

申请人： Cummins Inc.

发明人： Ashwin Vyas ,  Vivek A. Sujan ,  Andrew W. Osburn ,  Abdul Ofoli ,  Govindarajan Kothandaraman ,  Karim Azizou

IPC分类号： F02D41/18 ,  F02D41/00 ,  F02D41/24 ,  F02D41/22

CPC分类号： F02D41/0002 ,  F02D41/18 ,  F02D41/222 ,  F02D41/2474

摘要： Systems and methods for correcting mass airflow sensor drift include an operation conditions module to interpret a base calibration function, a MAF sensor input value, and a current operating condition. A MAF correction module determines an expected MAF value in response to the current operating condition and a predetermined operating condition. The MAF correction module will also determine an adjusted MAF value in response to the expected MAF value, the base calibration function, and the MAF sensor input value. A MAF reporting module is structured to provide the adjusted MAF value.

摘要翻译： 用于校正质量气流传感器漂移的系统和方法包括解释基准校准功能，MAF传感器输入值和当前操作条件的操作条件模块。 MAF校正模块响应于当前操作条件和预定操作条件确定预期MAF值。 MAF校正模块还将根据预期的MAF值，基准校准功能和MAF传感器输入值确定经调整的MAF值。 MAF报告模块的结构是提供调整后的MAF值。

公开(公告)号：US20140373511A1

公开(公告)日：2014-12-25

申请号：US14479643

申请日：2014-09-08

申请人： Cummins Inc.

发明人： Andrew W. Osburn ,  Feng Liu ,  Mert Geveci

IPC分类号： F01N11/00 ,  F01N3/20

CPC分类号： F01N11/00 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/103 ,  F01N3/2066 ,  F01N3/208 ,  F01N2560/021 ,  F01N2560/026 ,  F01N2900/0416 ,  Y02T10/24 ,  Y02T10/47

摘要： An example method includes interpreting an NH3 composition value at a position upstream of a selective reduction catalyst (SCR) element fluidly disposed in the exhaust conduit of an engine, interpreting a NOx composition value at a position downstream of the SCR element, and determining an NH3 sensor rationality threshold in response to the upstream NH3 composition value. The method further includes determining an NH3 sensor health value as indicating a sensor failure in response to the downstream NOx composition value exceeding the NH3 sensor rationality threshold.

摘要翻译： 示例性方法包括解释在发动机的排气管道中流体设置的选择性还原催化剂（SCR）元件的上游位置处的NH 3组成值，解释在SCR元件下游的位置处的NOx组成值，以及确定NH 3 响应上游NH3组成值的传感器理性阈值。 该方法还包括根据超过NH3传感器合理性阈值的下游NOx组成值，确定NH3传感器健康值作为指示传感器故障。