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1. 发明授权

US09617938B2 Abnormality diagnosis apparatus of exhaust gas purification apparatus 有权
公开(公告)号：US09617938B2
公开(公告)日：2017-04-11
申请号：US14893735
申请日：2014-05-29
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Tomoyuki Kogo , Makoto Ogiso , Kazuya Takaoka , Taiga Hagimoto , Arifumi Matsumoto , Hirokazu Nishijima , Kenji Furui
IPC分类号： F02D41/14 , F01N11/00 , F01N3/20 , F02D41/00 , F02D41/02 , F02M26/06 , F02M26/15 , F02D41/22 , F02M26/23
CPC分类号： F02D41/1461 , F01N3/208 , F01N11/00 , F01N11/007 , F01N2550/02 , F01N2560/026 , F01N2610/02 , F01N2900/08 , F01N2900/1402 , F02D41/0055 , F02D41/0235 , F02D41/1462 , F02D41/1463 , F02D41/22 , F02D2041/1469 , F02M26/06 , F02M26/15 , F02M26/23 , Y02T10/24 , Y02T10/47
摘要： An abnormality diagnosis apparatus includes: an exhaust gas purification apparatus arranged in an exhaust passage of an internal combustion engine and including a selective catalytic reduction catalyst; a supply apparatus supplying an additive such as ammonia to the exhaust gas purification apparatus; an EGR apparatus recirculating a part of exhaust gas from the exhaust passage at a downstream side of a position of supplying the additive to an intake passage; calculating means for calculating a NOx inflow amount into the exhaust gas purification apparatus using a parameter indicating an operating state of the internal combustion engine; diagnosing means for diagnosing an abnormality in the exhaust gas purification apparatus using the calculated NOx inflow amount as a parameter; and correcting means for, when a part of the exhaust gas is recirculated, increasingly correcting the calculated NOx inflow amount in accordance with an amount of the additive to be recirculated together with exhaust gas.

2. 发明授权

US08919099B2 System and method for determining an ammonia generation rate in a three-way catalyst 有权
标题翻译：用于测定三元催化剂中氨生成速率的系统和方法
公开(公告)号：US08919099B2
公开(公告)日：2014-12-30
申请号：US13157669
申请日：2011-06-10
申请人： Min Sun , Kevin L. Perry , Chang H. Kim
发明人： Min Sun , Kevin L. Perry , Chang H. Kim
IPC分类号： F01N3/00 , F01N3/20 , F02D41/02 , F02D41/14
CPC分类号： F01N3/2073 , F02D41/0235 , F02D41/1446 , F02D2041/1433 , F02D2041/1469 , Y02T10/22
摘要： A system according to the principles of the present disclosure includes a rate determination module, a storage level determination module, and an air/fuel ratio control module. The rate determination module determines an ammonia generation rate in a three-way catalyst based on a reaction efficiency and a reactant level. The storage level determination module determines an ammonia storage level in a selective catalytic reduction (SCR) catalyst positioned downstream from the three-way catalyst based on the ammonia generation rate. The air/fuel ratio control module controls an air/fuel ratio of an engine based on the ammonia storage level.
摘要翻译：根据本公开的原理的系统包括速率确定模块，存储水平确定模块和空燃比控制模块。速率确定模块基于反应效率和反应物水平来确定三元催化剂中的氨生成速率。存储水平确定模块基于氨产生速率确定位于三元催化剂下游的选择性催化还原（SCR）催化剂中的氨储存水平。空气/燃料比控制模块基于氨储存水平来控制发动机的空燃比。

3. 发明申请

US20120285143A1 METHOD FOR MANAGING AMMONIA SLIP 有权
标题翻译：管理氨纶SLIP的方法
公开(公告)号：US20120285143A1
公开(公告)日：2012-11-15
申请号：US13106115
申请日：2011-05-12
申请人： Min Sun , Jean-Yves Lavallee
发明人： Min Sun , Jean-Yves Lavallee
IPC分类号： F01N3/18
CPC分类号： F02D41/0275 , F01N3/035 , F01N3/101 , F01N3/2066 , F02D41/1462 , F02D2041/1469 , F02M26/00 , Y02T10/22
摘要： An internal combustion engine is configured to operate in a compression-ignition combustion mode and includes an exhaust aftertreatment system having an ammonia-selective catalytic reduction device. A method for operating the engine includes determining a present engine NOx generation rate, determining a NOx reduction rate of the ammonia-selective catalytic reduction device, determining an ammonia slip rate from the ammonia-selective catalytic reduction device corresponding to the NOx reduction rate of the ammonia-selective catalytic reduction device and the present engine NOx generation rate, and controlling engine operation to adjust the present engine NOx generation rate in response to the ammonia slip rate from the ammonia-selective catalytic reduction device.
摘要翻译：内燃机被构造成以压缩点火燃烧模式操作，并且包括具有氨选择性催化还原装置的排气后处理系统。用于操作发动机的方法包括确定当前的发动机NOx生成速率，确定氨选择性催化还原装置的NOx还原率，根据氨选择性催化还原装置的NOx还原率确定氨选择性催化还原装置的氨滑移率氨选择性催化还原装置和本发动机NOx生成速度，并且控制发动机运转，以响应于来自氨选择性催化还原装置的氨滑移速率来调节本发动机的NOx生成速率。

4. 发明申请

US20190010884A1 SELECTIVE CATALYTIC REDUCTION STEADY STATE AMMONIA SLIP DETECTION 审中-公开
公开(公告)号：US20190010884A1
公开(公告)日：2019-01-10
申请号：US15645424
申请日：2017-07-10
申请人： GM Global Technology Operations LLC
发明人： David P. Quigley , Sarah Funk
IPC分类号： F02D41/02 , F01N3/20 , F01N11/00 , F02D41/26
CPC分类号： F02D41/0235 , F01N3/035 , F01N3/103 , F01N3/208 , F01N11/00 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2570/14 , F01N2570/18 , F01N2610/02 , F01N2900/0422 , F01N2900/08 , F01N2900/1616 , F01N2900/1812 , F01N2900/1821 , F02D41/1441 , F02D41/1463 , F02D41/1465 , F02D41/26 , F02D2041/1469 , F02D2250/36
摘要： Technical solutions are described for an emissions control system for a motor vehicle including an internal combustion engine. The emissions control system includes a selective catalytic reduction (SCR) device, an NOx sensor, and a controller for ammonia slip detection. The ammonia slip detection includes comparing an NOx measurement from the NOx sensor with a predicted NOx value. In response to the NOx measurement exceeding the predicted NOx value by a threshold value, the threshold value being calibrated to a first predetermined value, the threshold value is calibrated to a second predetermined value, a timer is initiated to a predetermined duration, and during the predetermined duration of the timer, in response to a second NOx measurement from the NOx sensor exceeding the predicted NOx value by the threshold value set to the second predetermined value, a reductant dosing rate of the SCR device is adapted according to the second predetermined value.

5. 发明申请

US20140216131A1 Simplified method for measuring concentrations of exhaust gas components utilizing differential measurement across an absorber 审中-公开
标题翻译：通过吸收器的差分测量来测量排气组分浓度的简化方法
公开(公告)号：US20140216131A1
公开(公告)日：2014-08-07
申请号：US13815147
申请日：2013-02-04
申请人： Ronald S. Patrick , Robert Lupul
发明人： Ronald S. Patrick , Robert Lupul
IPC分类号： G01M15/10
CPC分类号： G01M15/102 , F01N2560/021 , F01N2560/026 , F01N2560/12 , F01N2560/14 , F02D41/146 , F02D2041/1469
摘要： A simplified method for measuring a first property and a second property of an exhaust gas mixture utilizing two sensors manufactured for the purpose of measuring a first property, being cross-sensitive to the second property with an absorber of the second property being placed between two of the sensors in the exhausting circuit of the exhaust gas mixture. Direct differential measurement between the two sensors quantify the concentrations of the first and second property.
摘要翻译：一种用于测量排气混合物的第一性质和第二性质的简化方法，其利用为了测量第一性能而制造的两个传感器，所述传感器与第二性质的第二性质的交叉敏感性，废气混合物排气回路中的传感器。两个传感器之间的直接差分测量量化了第一和第二特性的浓度。

6. 发明申请

US20100223908A1 AMMONIA (NH3) STORAGE CONTROL SYSTEM AND METHOD BASED ON A NITROGEN OXIDE (NOx) SENSOR 有权
标题翻译：氨氮（NH3）储存控制系统和基于氮氧化物（NOx）传感器的方法
公开(公告)号：US20100223908A1
公开(公告)日：2010-09-09
申请号：US12400156
申请日：2009-03-09
申请人： Charles E. Solbrig , Ognyan N. Yanakiev
发明人： Charles E. Solbrig , Ognyan N. Yanakiev
IPC分类号： F01N11/00
CPC分类号： F01N3/208 , B01D53/90 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D53/9495 , B01D2251/2067 , B01D2255/911 , F01N2570/18 , F01N2610/02 , F01N2900/0404 , F01N2900/0408 , F01N2900/1402 , F01N2900/1616 , F01N2900/1622 , F02D41/0235 , F02D41/1462 , F02D41/1463 , F02D2041/1469 , Y02T10/24
摘要： A control system comprising an upstream nitrogen oxide (NOx) control module that increases an upstream NOx level based on an initial upstream NOx level in an exhaust system, and an ammonia (NH3) storage condition detection module that detects a NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased. A method comprising increasing an upstream NOx level based on an initial upstream NOx level in an exhaust system, and detecting an NH3 storage condition based on a difference in a downstream NOx level before and after the upstream NOx level is increased.
摘要翻译：一种控制系统，包括：上游氮氧化物（NOx）控制模块，其基于排气系统中的初始上游NOx水平增加上游NOx水平;以及氨（NH 3）保存条件检测模块，其基于在上游NOx水平之前和之后的下游NOx水平的差异增加。一种方法，包括基于排气系统中的初始上游NOx水平来增加上游NOx水平，并且基于上游NOx水平之前和之后的下游NOx水平的差异来检测NH 3储存条件。

7. 发明授权

US11687688B2 Approach for aftertreatment system modeling and model identification 有权
公开(公告)号：US11687688B2
公开(公告)日：2023-06-27
申请号：US16824244
申请日：2020-03-19
申请人： Garrett Transportation I Inc.
发明人： Jaroslav Pekar , Gregory Stewart , Ondrej Santin , Daniel Pachner
IPC分类号： G06F30/20 , F02D41/24 , F02D41/26 , F01N11/00 , G05B17/00 , F02D41/14 , G01M15/10 , G06F119/08 , G01N33/00
CPC分类号： G06F30/20 , F01N11/00 , F02D41/2432 , F02D41/26 , G05B17/00 , F01N2260/24 , F01N2550/03 , F02D41/1445 , F02D41/1446 , F02D41/1448 , F02D41/1459 , F02D41/1461 , F02D2041/1415 , F02D2041/1433 , F02D2041/1437 , F02D2041/1469 , F02D2200/08 , G01M15/102 , G01N2033/0068 , G06F2119/08 , Y02T10/40
摘要： A system and approach for catalyst model parameter identification with modeling accomplished by an identification procedure that may incorporate a catalyst parameter identification procedure which may include determination of parameters for a catalyst device, specification of values for parameters and component level identification. Component level identification may be of a thermal model, adsorption and desorption, and chemistry. There may then be system level identification to get a final estimate of catalyst parameters.

8. 发明申请

US20170044953A1 EXHAUST GAS PURIFICATION APPARATUS FOR AN INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气净化装置
公开(公告)号：US20170044953A1
公开(公告)日：2017-02-16
申请号：US15231849
申请日：2016-08-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Yoshihisa SHINODA
IPC分类号： F01N3/20 , F01N3/10 , B01D53/94 , F01N3/08
CPC分类号： F01N3/2073 , B01D53/9418 , B01D53/9495 , F01N3/0814 , F01N3/101 , F01N3/105 , F01N9/00 , F01N2250/12 , F01N2430/06 , F01N2900/1616 , F02D41/025 , F02D41/0275 , F02D2041/1468 , F02D2041/1469 , Y02T10/22 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An amount of ammonia flowing out from an SCR catalyst is reduced at the time of carrying out rich spike control to reduce an amount of NOx stored in an NSR catalyst. The NSR catalyst and the SCR catalyst are arranged in order in an exhaust passage of an internal combustion engine which is able to be operated at a lean air fuel ratio, wherein a target air fuel ratio of exhaust gas flowing into the NSR catalyst during the rich spike control is made higher within the range of a rich air fuel ratio, in the case where the outflow of ammonia from the SCR catalyst in accompany with the rich spike control is estimated or detected, than in the case where it is not estimated or detected.
摘要翻译：在进行浓尖峰控制时，从SCR催化剂流出的氨的量减少，以减少存储在NSR催化剂中的NOx的量。 NSR催化剂和SCR催化剂依次布置在能够以稀薄空气燃料比操作的内燃机的排气通道中，其中在富含物中流入NSR催化剂的废气的目标空气燃料比在浓缩空燃比的范围内，使峰值控制变得更高，在与未进行估计或检测的情况相比，估计或检测到伴随富穗控制的SCR催化剂的氨的流出的情况下，。

9. 发明授权

US09010087B1 Method and system for NOx sensor degradation 有权
标题翻译： NOx传感器退化的方法和系统
公开(公告)号：US09010087B1
公开(公告)日：2015-04-21
申请号：US14079475
申请日：2013-11-13
申请人： Ford Global Technologies, LLC
发明人： Devesh Upadhyay , In Kwang Yoo , Michiel J. Van Nieuwstadt , David John Kubinski
IPC分类号： F01N11/00 , F01N3/18 , F01N3/20
CPC分类号： F01N3/18 , F01N3/206 , F01N3/208 , F01N11/00 , F01N2550/05 , F01N2560/021 , F01N2560/026 , F01N2610/146 , F01N2900/0416 , F01N2900/1404 , F02D41/042 , F02D41/1461 , F02D41/222 , F02D2041/1469 , Y02A50/2325 , Y02T10/24 , Y02T10/40
摘要： Various systems and method for detecting exhaust NOx sensor degradation are disclosed. In one example, degradation of the NOx sensor is indicated responsive to reductant injection in an exhaust passage under engine off conditions. For example, degradation of the NOx sensor is indicated when an actual NOx sensor output differs from an expected NOx sensor output by more than a threshold amount.
摘要翻译：公开了用于检测排气NOx传感器劣化的各种系统和方法。在一个示例中，响应于在发动机关闭条件下的排气通道中的还原剂喷射来指示NOx传感器的劣化。例如，当实际NOx传感器输出与期望的NOx传感器输出不同超过阈值时，指示NOx传感器的劣化。

10. 发明申请

US20140311135A1 INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机
公开(公告)号：US20140311135A1
公开(公告)日：2014-10-23
申请号：US13866254
申请日：2013-04-19
申请人： KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
发明人： Hiroshi MIYAGAWA , Kiyoshi YAMAZAKI
IPC分类号： F01N3/10
CPC分类号： F01N13/0093 , F01N3/106 , F01N3/2066 , F01N13/0097 , F01N2370/04 , F02D41/0025 , F02D41/0027 , F02D41/1461 , F02D2041/1468 , F02D2041/1469 , F02M25/14 , Y02T10/24
摘要： The internal combustion engine has an upstream side NOX selective reduction catalyst and a downstream side NOX selective reduction catalyst which are arranged in an engine exhaust passage. The upstream side NOX selective reduction catalyst has a region where the NOX removal rate becomes substantially constant when the ratio of concentration of ammonia to NOX of the inflowing exhaust rises. The internal combustion engine has an operating state in that region where the ratio of concentration of ammonia to NOX is maintained. The downstream side NOX selective reduction catalyst has an ammonia oxidation ability which is larger than the upstream side NOX selective reduction catalyst.
摘要翻译：内燃机具有设置在发动机排气通路内的上游侧NO x选择还原催化剂和下游侧NOX选择还原催化剂。当上游侧NO x选择还原催化剂具有当流入排气的氨浓度与NOX的比率上升时NO x去除率基本恒定的区域。内燃机在维持氨与NOx的浓度比的区域中具有运转状态。下游侧NO x选择还原催化剂的氨氧化能力大于上游侧NOX选择还原催化剂。

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