-
公开(公告)号：US08418438B2
公开(公告)日：2013-04-16
申请号：US12758999
申请日：2010-04-13
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N11/00 , F01N2560/026 , F01N2570/10 , F01N2610/02 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purifying system for a diesel engine has an ECU, a passage of exhaust gas, a unit having SCR catalyst, a NOx sensor placed at a downstream side of the unit, and a urea water adding valve placed at an upstream side of the unit. The SCR catalyst in the unit selectively adsorbs ammonia, and selectively purifies NOx contained in an exhaust gas emitted from the diesel engine by the adsorbed ammonia. The ECU changes the urea water adding amount, and performs abnormality diagnosis based on the detection result of the NOx sensor while changing an adding amount of the urea water. The ECU uses a first condition to indicate the presence of an excess NOx amount in the exhaust gas, and a second condition to indicate there is no error cause by the ammonia adsorption on the SCR catalyst.
摘要翻译： 用于柴油发动机的排气净化系统具有ECU，废气通道，具有SCR催化剂的单元，位于该单元下游侧的NOx传感器，以及放置在该单元的上游侧的尿素水添加阀 单元。 该单元中的SCR催化剂选择性地吸附氨，并且通过吸附的氨选择性地净化从柴油发动机排放的废气中所含的NOx。 ECU改变尿素水添加量，并且在改变尿素水的添加量的同时，基于NOx传感器的检测结果进行异常诊断。 ECU使用第一条件来指示废气中存在过量的NOx量，并且指示不存在SCR催化剂上的氨吸附引起的误差的第二条件。
-
公开(公告)号：US20100257844A1
公开(公告)日：2010-10-14
申请号：US12758999
申请日：2010-04-13
CPC分类号： F01N3/208 , F01N11/00 , F01N2560/026 , F01N2570/10 , F01N2610/02 , F01N2900/1622 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purifying system for a diesel engine has an ECU, a passage of exhaust gas, a unit having SCR catalyst, a NOx sensor placed at a downstream side of the unit, and a urea water adding valve placed at an upstream side of the unit. The SCR catalyst in the unit selectively adsorbs ammonia, and selectively purifies NOx contained in an exhaust gas emitted from the diesel engine by the adsorbed ammonia. The ECU changes the urea water adding amount, and performs abnormality diagnosis based on the detection result of the NOx sensor while changing an adding amount of the urea water. The ECU uses a first condition to indicate the presence of an excess NOx amount in the exhaust gas, and a second condition to indicate there is no error cause by the ammonia adsorption on the SCR catalyst.
摘要翻译： 用于柴油发动机的排气净化系统具有ECU，废气通道，具有SCR催化剂的单元，位于该单元下游侧的NOx传感器，以及放置在该单元的上游侧的尿素水添加阀 单元。 该单元中的SCR催化剂选择性地吸附氨，并且通过吸附的氨选择性地净化从柴油发动机排放的废气中所含的NOx。 ECU改变尿素水添加量，并且在改变尿素水的添加量的同时，基于NOx传感器的检测结果进行异常诊断。 ECU使用第一条件来指示废气中存在过量的NOx量，并且指示不存在SCR催化剂上的氨吸附引起的误差的第二条件。
-
公开(公告)号：US07322186B2
公开(公告)日：2008-01-29
申请号：US11220596
申请日：2005-09-08
CPC分类号： F02D41/029 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F02D41/1441 , F02D41/1448 , Y02T10/47
摘要： In an exhaust gas purifying apparatus for a diesel engine having a diesel particulate filter provided in an exhaust pipe, a pressure loss at the filter is detected. An accumulated amount of diesel particulates in the filter is calculated based on the pressure loss and a map for a relationship between the pressure loss and the accumulated amount. A compulsory re-generating operation is carried out when the calculated accumulated amount reaches at a predetermined threshold value, which is decreased to a smaller value depending on a combustion amount of the diesel particulates which are combusted and removed from the filter as a natural re-generating operation.
摘要翻译： 在具有设置在排气管中的柴油机微粒过滤器的柴油机废气净化装置中，检测过滤器处的压力损失。 基于压力损失和压力损失与累积量之间的关系的映射图来计算过滤器中的柴油微粒的累积量。 当计算出的累计量达到预定阈值时，根据从过滤器燃烧和除去的柴油微粒的燃烧量减少到较小值，进行强制再生作业， 生成操作。
-
公开(公告)号：US20070012034A1
公开(公告)日：2007-01-18
申请号：US11483609
申请日：2006-07-11
CPC分类号： F01N11/002 , F01N3/023 , F01N9/002 , F01N9/005 , F01N9/007 , F02B29/0406 , F02B37/00 , F02D41/0055 , F02D41/0245 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.
摘要翻译： 在车辆内燃机的废气排放控制系统中，微粒过滤器收集内燃机的废气中的颗粒物质。 过滤再生器通过燃烧颗粒过滤器中积聚的颗粒物质来再生颗粒过滤器。 过滤器前堵塞检测器确定颗粒过滤器的前端部分是否被颗粒物质堵塞。 过滤器再生控制器，当过滤器前堵塞检测器确定微粒过滤器的前端部分堵塞时，控制过滤器再生器执行前部再生以除去积聚在微粒过滤器的前端部分中的颗粒物质。
-
公开(公告)号：US07162867B2
公开(公告)日：2007-01-16
申请号：US11228292
申请日：2005-09-19
IPC分类号： F01N3/00
CPC分类号： F01N3/023 , F01N9/002 , F01N2430/00 , Y02T10/47
摘要： An exhaust gas purifying device for an engine includes a particulate filter midway in an exhaust passage for collecting particulate matters. A control means calculates an accumulating amount of particulate matters on the particulate filter. An accumulating amount calculating means calculates the accumulating amount in accordance with an accumulating characteristic and differential pressure of the particulate filter detected using a differential pressure detecting means. When the accumulating amount becomes a predetermined regeneration demand amount, the control means performs a forcible regeneration, in which particulate matters on the particulate filter are burned and removed to regenerate the particulate filter.
摘要翻译： 用于发动机的排气净化装置包括在用于收集颗粒物质的排气通道中途的微粒过滤器。 控制装置计算微粒过滤器上的颗粒物的累积量。 累积量计算装置根据使用差压检测装置检测的微粒过滤器的累积特性和压差来计算累积量。 当累积量成为预定的再生需求量时，控制装置进行强制再生，其中颗粒过滤器上的颗粒物被燃烧并除去以再生微粒过滤器。
-
6.发明授权公开(公告)号：US07159390B2
公开(公告)日：2007-01-09
申请号：US10867209
申请日：2004-06-15
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , B01D46/2429 , B01D46/244 , B01D46/2444 , B01D46/2455 , B01D46/2459 , B01D46/2466 , B01D46/2474 , B01D2046/2433 , B01D2046/2496 , F01N3/0222 , F01N3/023 , F01N2240/10 , F01N2260/10 , F01N2330/32 , F01N2510/06
摘要： To prevent the deterioration of catalyst or the damage of a particulate filter caused by the rapid temperature rise of the particulate filter when the abrupt deceleration of an engine occurs, and avoid the deterioration of fuel consumption by depositing a large PM in the particulate filter and regenerating the same at once.A heat-absorbing area 4 is provided by forming a deeply clogged structure at the exhaust gas flowing-out side end of the particular filter 1 disposed in an exhaust pipe 2 of an internal combustion engine E. As the heat-absorbing area has a heat capacity larger than that in the other portions, the combustion heat is absorbed and dispersed even if the rapid chain reaction of PM combustion occurs, whereby it is possible to suppress the temperature rise of the downstream portion of the particulate filter liable to be high in temperature.
摘要翻译： 为了防止发动机发生急剧减速时由于微粒过滤器的快速升温引起的催化剂劣化或微粒过滤器的损坏，并且通过在颗粒过滤器中沉积大的PM并避免再生而避免燃料消耗的恶化 立即一样。 通过在设置在内燃机E的排气管2中的特定过滤器1的废气流出侧端处形成深度堵塞的结构来提供吸热区域4.当吸热区域具有热量 容量大于其他部分的容量，即使发生PM燃烧的快速链接反应，燃烧热也被吸收和分散，从而可以抑制微粒过滤器的下游部分的温度升高容易变高 。
-
7.发明申请公开(公告)号：US20050011186A1
公开(公告)日：2005-01-20
申请号：US10867209
申请日：2004-06-15
CPC分类号： F01N3/035 , B01D46/2429 , B01D46/244 , B01D46/2444 , B01D46/2455 , B01D46/2459 , B01D46/2466 , B01D46/2474 , B01D2046/2433 , B01D2046/2496 , F01N3/0222 , F01N3/023 , F01N2240/10 , F01N2260/10 , F01N2330/32 , F01N2510/06
摘要： To prevent the deterioration of catalyst or the damage of a particulate filter caused by the rapid temperature rise of the particulate filter when the abrupt deceleration of an engine occurs, and avoid the deterioration of fuel consumption by depositing a large PM in the particulate filter and regenerating the same at once. A heat-absorbing area 4 is provided by forming a deeply clogged structure at the exhaust gas flowing-out side end of the particular filter 1 disposed in an exhaust pipe 2 of an internal combustion engine E. As the heat-absorbing area has a heat capacity larger than that in the other portions, the combustion heat is absorbed and dispersed even if the rapid chain reaction of PM combustion occurs, whereby it is possible to suppress the temperature rise of the downstream portion of the particulate filter liable to be high in temperature.
摘要翻译： 为了防止发动机发生急剧减速时的微粒过滤器的快速升温引起的催化剂劣化或微粒过滤器的损坏，并且通过在颗粒过滤器中沉积大的PM并避免再生，避免燃料消耗的恶化 立即一样。 通过在设置在内燃机E的排气管2中的特定过滤器1的废气流出侧端处形成深度堵塞的结构来提供吸热区域4.当吸热区域具有热量 容量大于其他部分的容量，即使发生PM燃烧的快速链接反应，燃烧热也被吸收和分散，从而可以抑制微粒过滤器的下游部分的温度升高容易变高 。
-
公开(公告)号：US07841171B2
公开(公告)日：2010-11-30
申请号：US11594854
申请日：2006-11-09
CPC分类号： F01N9/002 , F01N3/0842 , F01N11/00 , F01N2550/04 , Y02T10/47
摘要： A method is disclosed for estimating an amount of deposited particulates (PM) in a collector of an internal combustion engine. The method includes estimating the amount of inflow of PM into the collector and estimating a basic amount of decreased PM that flows into the collector and is burned and decreased. The method also includes estimating the amount of ash deposited on the collector. The method further includes correcting the basic amount of decreased PM based on the estimated amount of ash. Moreover, the method includes estimating an amount of deposited PM by a history expression based on the estimated amount of inflow of PM and the corrected amount of decreased PM. A related device is also disclosed.
摘要翻译： 公开了一种用于估计内燃机的收集器中沉积的微粒（PM）的量的方法。 该方法包括估计PM进入收集器的流入量，并估计流入集热器并降低的PM的降低的基本量。 该方法还包括估计沉积在收集器上的灰分量。 该方法还包括基于估计的灰分量校正降低的PM的基本量。 此外，该方法包括基于估计的PM的流入量和校正的PM的减少量来估计存储的PM的历史表达量。 还公开了一种相关设备。
-
9.发明授权公开(公告)号：US07793538B2
公开(公告)日：2010-09-14
申请号：US11937323
申请日：2007-11-08
IPC分类号： G01M15/00
CPC分类号： F01N11/002 , F01N11/005 , F01N2900/0422 , Y02T10/47
摘要： A diagnostic apparatus monitors a pressure difference detection apparatus that detects the pressure difference across an engine exhaust gas cleansing device in an exhaust gas system, with the diagnostic apparatus recognizing a condition of impeded transfer of gas between the pressure difference detection apparatus and the exhaust gas system, based upon a manner of convergence of successive detected pressure difference values that are produced by the pressure difference detection apparatus following a change in the exhaust gas flow rate.
摘要翻译： 诊断装置监视检测排气系统中的发动机废气净化装置的压力差的压力差检测装置，诊断装置识别压力差检测装置与废气系统之间的气体阻碍状态 基于随着废气流量变化而由压力差检测装置产生的连续检测的压力差值的收敛方式。
-
公开(公告)号：US07574857B2
公开(公告)日：2009-08-18
申请号：US11483609
申请日：2006-07-11
IPC分类号： F01N3/025
CPC分类号： F01N11/002 , F01N3/023 , F01N9/002 , F01N9/005 , F01N9/007 , F02B29/0406 , F02B37/00 , F02D41/0055 , F02D41/0245 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： In an exhaust emission control system for a vehicular internal combustion engine, a particulate filter collects particulate matters in an exhaust gas of the internal combustion engine. A filter regenerator regenerates the particulate filter by burning the particulate matters accumulated in the particulate filter. A filter front clogging detector determines whether a front end portion of the particulate filter is clogged by the particulate matters. A filter regeneration controller that controls the filter regenerator to perform a front regeneration to remove the particulate matters accumulated in the front end portion of the particulate filter when the filter front clogging detector determines that the front end portion of the particulate filter is clogged.
摘要翻译： 在车辆内燃机的废气排放控制系统中，微粒过滤器收集内燃机的废气中的颗粒物质。 过滤再生器通过燃烧颗粒过滤器中积聚的颗粒物质来再生颗粒过滤器。 过滤器前堵塞检测器确定颗粒过滤器的前端部分是否被颗粒物质堵塞。 过滤器再生控制器，当过滤器前堵塞检测器确定微粒过滤器的前端部分堵塞时，控制过滤器再生器执行前部再生以除去积聚在微粒过滤器的前端部分中的颗粒物质。
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.023 秒)
