公开(公告)号：US20090145109A1

公开(公告)日：2009-06-11

申请号：US12314053

申请日：2008-12-03

申请人： Toru Kidokoro ,  Koichi Kimura ,  Koichi Kitaura

发明人： Toru Kidokoro ,  Koichi Kimura ,  Koichi Kitaura

IPC分类号： F01N11/00

CPC分类号： F01N11/007 ,  F01N3/0864 ,  F01N3/101 ,  F01N13/009 ,  F01N2550/02 ,  F01N2560/025 ,  F01N2560/14 ,  F01N2900/102 ,  F01N2900/1624 ,  Y02T10/22 ,  Y02T10/47

摘要： The oxygen storage capacity preceding a previous oxygen storage capacity and the previous oxygen storage capacity of each of an upstream catalyst and a downstream catalyst are measured, and a present oxygen storage capacity of the downstream catalyst is measured. Then, sulfur poisoning of the upstream catalyst and the downstream catalyst is detected on the basis of an oxygen storage capacity change amount of each of the upstream catalyst and the downstream catalyst from the oxygen storage capacity preceding the previous one to the previous oxygen storage capacity, and the oxygen storage capacity change amount of the downstream catalyst from the previous oxygen storage capacity to the present oxygen storage capacity. The presence/absence of the sulfur poisoning can be accurately detected by utilizing the difference between the manners of sulfur poisoning of the two catalysts.

摘要翻译： 测量先前的氧气存储容量之前的储氧能力和上游催化剂和下游催化剂​​的先前的氧气存储容量，并测量下游催化剂​​的当前储氧能力。 然后，基于上游催化剂和下游催化剂​​的储氧容量变化量，从前一次的储氧容量到先前的储氧容量，检测上游催化剂和下游催化剂​​的硫中毒， 和下游催化剂​​的储氧能力变化量从先前的储氧能力到当前的储氧容量。 通过利用两种催化剂的硫中毒方式之间的差异能够准确地检测是否存在硫中毒。

公开(公告)号：US20090084086A1

公开(公告)日：2009-04-02

申请号：US12058293

申请日：2008-03-28

申请人： Dirk SAMUELSEN

发明人： Dirk SAMUELSEN

IPC分类号： F01N9/00

CPC分类号： F01N3/208 ,  F01N9/005 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/00 ,  F01N2900/0408 ,  F01N2900/102 ,  F01N2900/1402 ,  F01N2900/1622 ,  Y02A50/2325 ,  Y02T10/24

摘要： A procedure for operating an exhaust gas treatment device arranged in the exhaust gas area of a combustion engine, which requires for the catalytically supported conversion of the NOx emission of the combustion engine a reagent, whose dosage is determined by a dosage signal depending on a NOx actual value that is contained in the exhaust gas treatment device and that is measured by a NOx sensor, which is contained in the exhaust gas treatment device downstream after a catalyzer, as well as a device for implementing the procedure is suggested. The dosage singal is influenced by a correcting signal depending on a measure for the operating time of the exhaust gas treatment device in the sense of an increase of the dosage of the reagent. The strategy according to the invention allows the condsideration of a long-term drift of the NOx emissions of the combustion engine and/or of long-term drifts of individual drifts of the exhaust gas treatment device and ensures a preset minimum NOx conversion rate for the entire operating time of the exhaust gas treatment device.

摘要翻译： 一种用于操作排气处理装置的方法，该排气处理装置布置在内燃机的排气区域中，其需要催化支撑的燃烧发动机的NOx排放转化为试剂，其剂量由取决于NOx的剂量信号确定 建议在废气处理装置中包含的并且由在催化剂之后的排气处理装置中包含的NOx传感器测量的实际值以及用于实施该过程的装置。 在试剂剂量增加的意义上，取决于废气处理装置的操作时间的措施，剂量单位受到校正信号的影响。 根据本发明的策略允许遏制内燃机的NOx排放的长期漂移和/或废气处理装置的各个漂移的长期漂移，并确保预设的最小NOx转化率 废气处理装置的整个工作时间。

公开(公告)号：US20090038291A1

公开(公告)日：2009-02-12

申请号：US12083009

申请日：2006-12-01

申请人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

发明人： Kohei Yoshida ,  Shinya Hirota ,  Takamitsu Asanuma

IPC分类号： F01N3/20

CPC分类号： B01D53/9454 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2257/302 ,  B01D2258/012 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0885 ,  F01N13/009 ,  F01N13/0097 ,  F01N2900/102 ,  F01N2900/1612 ,  F02B37/00 ,  F02D29/02 ,  F02D41/028 ,  F02D41/0285 ,  F02D41/029 ,  F02D41/405 ,  F02D2200/0625 ,  Y02A50/2324 ,  Y02T10/22

摘要： A post-treatment system comprised of an SOx trapping catalyst (11), a particulate filter (13) carrying an NOx storing and reducing catalyst, and an NOx storing and reducing catalyst (15) and a fuel feed valve (17) for feeding fuel for post processing to the post-treatment system are arranged in an engine exhaust passage. Each time an operating period of the engine passes a certain period, values of operating parameters of the engine and the method of feeding the post-treatment use fuel are reset so that the total amount of consumption of the combustion use fuel and post-treatment use fuel becomes smallest while maintaining the amounts of the harmful components discharged into the atmosphere at below the regulatory values.

摘要翻译： 由SOx捕集催化剂（11），带有NOx储存和还原催化剂的颗粒过滤器（13）和用于供给燃料的NOx储存和还原催化剂（15）和燃料供给阀（17）组成的后处理系统 用于后处理的后处理系统布置在发动机排气通道中。 每当发动机的运转时间经过一段时间时，重新设定发动机的运转参数值和供给后处理用途燃料的方法，使得燃烧用燃料和后处理用途的总消耗量 燃料变得最小，同时将排放到大气中的有害成分的量保持在监管值以下。

公开(公告)号：US20060184307A1

公开(公告)日：2006-08-17

申请号：US11342607

申请日：2006-01-31

申请人： Yuji Kosaka

发明人： Yuji Kosaka

IPC分类号： G06F19/00

CPC分类号： F02D41/0055 ,  B60W2530/18 ,  F01N3/206 ,  F01N3/208 ,  F01N11/00 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2900/102 ,  F01N2900/1814 ,  F02D41/1462 ,  F02D2200/701 ,  F02D2250/36 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

摘要： A travel assist system searches a nearest service station based on navigation information and predicts a quantity of aqueous urea solution consumed until the service station is reached. If a quantity of the remaining aqueous urea solution is not greater than the aqueous urea solution consumption at least by a predetermined value, a warning is provided to a user. Control conditions of an internal combustion engine (diesel engine) enabling the vehicle to reach the service station without running short of the aqueous urea solution are calculated. An exhaust gas recirculation quantity is increased based on the calculation result. Thus, nitrogen oxides contained in the exhaust gas is reduced and a consumption of the aqueous urea solution is reduced.

摘要翻译： 旅行辅助系统基于导航信息搜索最近的服务站，并且预测在到达服务站之前消耗的尿素水溶液的量。 如果剩余尿素水溶液的量不大于尿素水溶液消耗量至少达到预定值，则向用户提供警告。 计算能够使车辆到达维修站而不会流失尿素水溶液的内燃机（柴油发动机）的控制条件。 基于计算结果，排气再循环量增加。 因此，废气中含有的氮氧化物减少，尿素水溶液的消耗降低。

公开(公告)号：US06644021B2

公开(公告)日：2003-11-11

申请号：US10303605

申请日：2002-11-25

申请人： Kojiro Okada ,  Yasuki Tamura

发明人： Kojiro Okada ,  Yasuki Tamura

IPC分类号： F01N300

CPC分类号： F01N9/005 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/101 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/16 ,  F01N2570/04 ,  F01N2900/102 ,  F02D37/02 ,  F02D41/024 ,  F02D41/028 ,  F02P5/1506 ,  Y02T10/22 ,  Y02T10/26 ,  Y02T10/46 ,  Y02T10/47

摘要： In an exhaust gas purifying apparatus of an internal combustion engine, the temperature of occlusion-type NOx catalyst is increased to emit SOx when the temperature of occlusion-type NOx catalyst is not less than a set temperature. This prevents the deterioration of fuel consumption and enables the regeneration of a catalyst device by efficiently desorbing a sulfur component from the catalyst device. In this case, the temperature of the occlusion-type NOx catalyst is preferably set according to the frequency of the SOx desorption, and the temperature of the occlusion-type NOx catalyst can be increased by, for example, retarding an ignition timing.

摘要翻译： 另外，在内燃机的废气净化装置中，当吸留型NOx催化剂的温度为设定温度以上时，吸留型NOx催化剂的温度上升，发出SOx。 这防止了燃料消耗的劣化，并且通过有效地从催化剂装置解吸硫成分，能够使催化剂装置再生。 在这种情况下，阻挡型NOx催化剂的温度优选根据SOx解吸的频率来设定，并且可以通过例如延迟点火正时来提高闭塞型NOx催化剂的温度。

公开(公告)号：US5201802A

公开(公告)日：1993-04-13

申请号：US829212

申请日：1992-01-31

申请人： Shinya Hirota ,  Kenji Katoh

发明人： Shinya Hirota ,  Kenji Katoh

IPC分类号： F01N3/20 ,  F01N9/00 ,  F01N11/00

CPC分类号： F01N3/2046 ,  F01N11/00 ,  F01N11/002 ,  F01N3/2006 ,  F01N3/2033 ,  F01N3/208 ,  F01N9/00 ,  F01N2240/02 ,  F01N2260/024 ,  F01N2510/063 ,  F01N2550/02 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/102 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

摘要： An exhaust gas purification system for an internal combustion engine includes an engine capable of fuel combustion at lean air-fuel ratios, a catalyst constructed of zeolite carrying at least one metal selected from the transition metals and noble metals to reduce NOx under oxidizing gas conditions and in the presence of HC. The exhaust gas purification system also includes a device for determining degradation of the catalyst, and a device for increasing the amount of HC or changing a catalyst temperature to a higher side when it is determined that the catalyst has been degraded. The NOx purification rate of the catalyst is maintained high even after the catalyst has been degraded.

公开(公告)号：US20180340784A1

公开(公告)日：2018-11-29

申请号：US15606791

申请日：2017-05-26

申请人： Ford Global Technologies, LLC

发明人： Devesh Upadhyay ,  Michael Brendan Hopka

IPC分类号： G01C21/34 ,  G01C21/36 ,  F01N3/027 ,  F01N3/023

CPC分类号： G01C21/3469 ,  F01N3/023 ,  F01N3/0238 ,  F01N3/027 ,  F01N9/002 ,  F01N9/007 ,  F01N2900/0402 ,  F01N2900/102 ,  F01N2900/12 ,  F01N2900/1606 ,  F02D41/00 ,  G01C21/3415 ,  G01C21/3484 ,  G01C21/3492 ,  G01C21/3611 ,  G01C21/3617 ,  G01C21/3691

摘要： Methods and systems are provided for maintaining a database with details of frequently travelled routes and selecting a travel route for a vehicle from the database based on particulate filter regeneration requirements. In one example, a method may include selecting one or more routes from the database based on a current particulate filter soot level, fuel efficiency, travel time, operator behavior, etc., ranking the routes based on the particulate filter regeneration efficiency of each of the one or more routes. At vehicle key-off, the database may be updated with information regarding the travelled route including a level of particulate filter regeneration achieved during the drive cycle.

公开(公告)号：US09599002B2

公开(公告)日：2017-03-21

申请号：US14871347

申请日：2015-09-30

申请人： Doosan Infracore Co., Ltd.

发明人： In-hyuk Im ,  Nam-il Choi ,  Jun-hee Won ,  Tae-hyung Kim

IPC分类号： F01N9/00 ,  F01N3/10 ,  F01N3/20

CPC分类号： F01N9/00 ,  F01N3/103 ,  F01N3/20 ,  F01N2260/04 ,  F01N2430/06 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2570/12 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/102 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/1626 ,  Y02T10/47

摘要： In an engine control method for maintaining performance of oxidation catalyst, fuel of a compressed natural gas engine under a lean-burn condition with an air-fuel equivalence ratio less than or equal to 1 is burned. Activation of the oxidation catalyst for purifying an exhaust gas of the engine is determined. Necessity of a regeneration mode for recovering catalytic activation of the oxidation catalyst according to an activation state of the oxidation catalyst and an operating condition of the engine is determined. And, the air-fuel equivalence ratio is increased to a range of from 1.10 to 1.20 when the oxidation catalyst is inactive and an engine speed is lower than a predetermined speed.

公开(公告)号：US09109484B2

公开(公告)日：2015-08-18

申请号：US14348650

申请日：2012-07-30

申请人： Takafumi Amano

发明人： Takafumi Amano

IPC分类号： F01N3/025 ,  F01N3/023 ,  F01N9/00 ,  F01N11/00

CPC分类号： F01N3/023 ,  B60W2510/068 ,  B60W2720/10 ,  F01N3/0235 ,  F01N3/0238 ,  F01N3/0253 ,  F01N9/002 ,  F01N11/002 ,  F01N2240/36 ,  F01N2260/14 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2610/148 ,  F01N2900/10 ,  F01N2900/102 ,  F01N2900/1404 ,  F01N2900/1606 ,  Y02T10/47

摘要： The purpose of the present invention is to provide a DPF travel-time regeneration control system of stably raising the temperature even during travel and capable of decreasing the frequency of DPF regeneration when the vehicle is stopped. In this control system, if the DPF (5) needs to be regenerated, the vehicle is traveling on cruise control, and the exhaust temperature detected by an exhaust temperature sensor (11) is higher than a threshold value, then fuel is injected into the exhaust pipe by a fuel injection means (7), and if the exhaust temperature is lower than the threshold value, the exhaust temperature is raised by operating the exhaust brake without injecting fuel into the exhaust pipe.

摘要翻译： 本发明的目的是提供即使在行驶期间稳定地提高温度的DPF行驶时再生控制系统，并且能够在车辆停止时降低DPF再生的频率。 在该控制系统中，如果DPF（5）需要再生，则车辆行驶在巡航控制中，并且由排气温度传感器（11）检测到的排气温度高于阈值，则将燃料喷射到 通过燃料喷射装置（7）排出排气管，并且如果排气温度低于阈值，则通过在不向排气管中喷射燃料的情况下操作排气制动器来提高排气温度。

公开(公告)号：US20150218998A1

公开(公告)日：2015-08-06

申请号：US14606408

申请日：2015-01-27

申请人： Toyota Jidosha Kabushiki Kaisha

发明人： Takato ISHIHATA ,  Yuichiro HIRATA ,  Toshio MURATA ,  Nakaya TAKAGAKI ,  Hideyuki KOMITSU ,  Yojiro IRIYAMA ,  Kazutoshi WAKATSUKI

IPC分类号： F01N5/02

CPC分类号： F01N5/02 ,  F01N3/005 ,  F01N3/0205 ,  F01N3/043 ,  F01N9/00 ,  F01N2240/02 ,  F01N2240/36 ,  F01N2260/024 ,  F01N2260/08 ,  F01N2900/0422 ,  F01N2900/08 ,  F01N2900/102 ,  F01P7/14 ,  F01P2025/13 ,  F01P2025/30 ,  F01P2060/08 ,  F01P2060/16 ,  F02G5/02 ,  F28D21/0003 ,  Y02T10/16 ,  Y02T10/166 ,  Y02T10/47

摘要： An exhaust heat recovery control device includes a recovered heat adjusting unit configured to adjust an amount of heat recovered of exhaust gas by an exhaust heat recoverer recovering heat of exhaust gas and a control unit configured to control the recovered heat adjusting unit so as to prevent or suppress freezing in an exhaust pipe based on a traveling history of a vehicle on which the exhaust heat recovery control device is mounted when the freezing in the exhaust pipe is predicted.

摘要翻译： 废热回收控制装置包括回收热调节单元，其被配置为通过排气回热器来回收排气的热量来调节废气的热量;以及控制单元，其被配置为控制回收的热调节单元，以防止或 当预测出排气管内的冷冻时，基于其上安装有排气热回收控制装置的车辆的行驶历史来抑制排气管中的冻结。