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公开(公告)号：US09920679B2
公开(公告)日：2018-03-20
申请号：US15041689
申请日：2016-02-11
CPC分类号： F01N9/002 , F01N3/023 , F01N3/0238 , F01N3/027 , F01N13/14 , F01N2410/04 , Y02T10/47
摘要： Methods and systems are provided for filtering particulate matter in an exhaust passage of an engine system. In one example, a method may include during a cold start condition comprising an engine temperature being less than a threshold engine temperature, directing engine exhaust gas to an exhaust particulate filter, and during a warm engine condition, directing engine exhaust gas to bypass the exhaust particulate filter, wherein the warm engine condition comprises the engine temperature being greater than or equal to the threshold engine temperature and fuel being combusted in the engine. In this way, the exhaust particulate filter may be reliably regenerated during engine shutdown events such as DFSOs while reducing filter degradation, and lowering PM emissions.
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公开(公告)号：US20170234196A1
公开(公告)日：2017-08-17
申请号：US15041689
申请日：2016-02-11
CPC分类号： F01N9/002 , F01N3/023 , F01N3/0238 , F01N3/027 , F01N13/14 , F01N2410/04 , Y02T10/47
摘要： Methods and systems are provided for filtering particulate matter in an exhaust passage of an engine system. In one example, a method may include during a cold start condition comprising an engine temperature being less than a threshold engine temperature, directing engine exhaust gas to an exhaust particulate filter, and during a warm engine condition, directing engine exhaust gas to bypass the exhaust particulate filter, wherein the warm engine condition comprises the engine temperature being greater than or equal to the threshold engine temperature and fuel being combusted in the engine. In this way, the exhaust particulate filter may be reliably regenerated during engine shutdown events such as DFSOs while reducing filter degradation, and lowering PM emissions.
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公开(公告)号：US20160265411A1
公开(公告)日：2016-09-15
申请号：US15031032
申请日：2014-08-26
发明人： Yoshihisa TSUKAMOTO , Kazuhiro ITOH , Hiromasa NISHIOKA , Daichi IMAI , Hiroshi OTSUKI , Yasumasa NOTAKE
CPC分类号： F01N9/002 , B01D46/2429 , B01D2046/2437 , F01N3/0222 , F01N3/0232 , F01N3/0238 , F01N3/0293 , F01N3/05 , F01N3/22 , F01N3/32 , F01N2330/06 , F01N2330/30 , F01N2330/60 , F01N2510/068 , F01N2900/0412 , F01N2900/1406 , F01N2900/1606 , F01N2900/1611 , F02D41/029 , F02D41/1445 , F02D2200/0812 , Y02T10/47
摘要： Micropore zones ZMI are defined at upstream sides of partition walls 72 of a particulate filter and macropore zones ZMA are defined at downstream sides of partition walls. The pore size of the partition walls at the micropore zones is set so that the particulate matter and the ash can be trapped by the partition walls at the micropore zones, while the pore size of the partition walls at the macropore zones is set so that the ash can pass through the partition walls at the macropore zones. When a quantity of trapped particulate matter is smaller than a limit quantity, control for increasing gas which temporarily increases the flow rate of the gas which flows into the particulate filter in order to remove the ash from the particulate filter, is performed.
摘要翻译： 微孔区域ZMI被限定在颗粒过滤器的分隔壁72的上游侧，并且大孔区域ZMA被限定在分隔壁的下游侧。 微孔区域的隔壁的孔径被设定为使得微孔区域中的分隔壁可以捕获颗粒物质和灰分，同时将大孔区域的隔壁的孔径设定为使得 灰分可以穿过大孔区域的隔墙。 当捕获的颗粒物质的量小于限制量时，执行用于增加气体的控制，其暂时增加流入微粒过滤器中的气体的流量以从微粒过滤器除去灰分。
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公开(公告)号：US09200555B2
公开(公告)日：2015-12-01
申请号：US14355089
申请日：2011-11-02
申请人： Mamoru Yoshioka
发明人： Mamoru Yoshioka
CPC分类号： F01N3/2013 , F01N3/0238 , F01N3/0275 , F01N3/035 , F01N3/2026 , F01N3/2867 , F01N3/32 , F01N9/00 , F01N9/007 , F01N13/14 , F01N2240/16 , F01N2390/02 , F01N2900/1404 , F01N2900/1602 , F01N2900/1606 , F01N2900/1631 , Y02T10/26 , Y02T10/47
摘要： A purpose of the present invention is to prevent a PM-caused short circuit between a heating element and a case in an electrically heated catalyst. The electrically heated catalyst is provided in an exhaust gas passage of an internal combustion engine the air-fuel ratio of which is controlled at a ratio near a theoretical air-fuel ratio at an operation time. The electrically heated catalyst includes a heating element that generates heat through electric conduction, a case that stores the heating element therein, and an insulating member sandwiched between the heating element and the case. According to the present invention, the heating element is electrically conducted after the operation of the internal combustion engine is stopped.
摘要翻译： 本发明的目的是防止加热元件与电加热催化剂中的壳体之间的PM引起的短路。 电加热催化剂设置在内燃机的排气通道中，其空燃比控制在理论空燃比在操作时间附近。 电加热催化剂包括通过导电产生热量的加热元件，将加热元件存储在其中的壳体和夹在加热元件和壳体之间的绝缘构件。 根据本发明，在停止内燃机的运转之后，加热元件进行导电。
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公开(公告)号：US20150073669A1
公开(公告)日：2015-03-12
申请号：US14386068
申请日：2013-03-13
申请人： Scania CV AB
发明人： Peter Carlson
IPC分类号： B60W30/18 , B60W10/06 , B60W40/068 , B60W10/11 , B60W10/18
CPC分类号： B60W30/18054 , B60T7/12 , B60W10/06 , B60W10/11 , B60W10/182 , B60W30/18027 , B60W30/18109 , B60W40/068 , F01N3/0238 , F02D41/029 , F02D2400/12
摘要： A method for safety improvement when a motor vehicle (100) having a power train with an engine (230), automatic gearbox (240) and torque converter (237) is stationary and particle filter (320) for the exhaust gases of the engine (230) is being regenerated; The step of applying safety brake action to keep the vehicle (100) stationary despite torque transfer being maintained in the power train. The step of choosing in the gearbox (240) a gear step which is higher than an initial gear step of the gearbox (240) in order to reduce the torque transferred to the vehicle's tractive wheels (247a, 247b) when the vehicle is thus kept stationary. Also a computer programme product with program code (P) for a computer (200; 210) for implementing the method. Also a device for safety improvement when a motor vehicle (100) is stationary and a particle filter (320) for the exhaust gases of the engine (230) is being regenerated. Also, a motor vehicle (100) equipped with the device.
摘要翻译： 当具有发动机（230），自动变速箱（240）和变矩器（237）的动力传动系的机动车辆（100）为静止时，用于安全改进的方法和用于发动机排气的颗粒过滤器（320） 230）正在再生; 施加安全制动作用以保持车辆（100）静止的步骤，尽管在动力传动系中保持转矩传递。 在齿轮箱（240）中选择齿轮级的步骤，其高于齿轮箱（240）的初始齿轮级，以便当车辆保持时减小传递到车辆牵引轮（247a，247b）的扭矩 静止的 还有一种具有用于实现该方法的计算机（200; 210）的程序代码（P）的计算机程序产品。 还有一种用于当机动车辆（100）静止并且用于发动机（230）的废气的颗粒过滤器（320）被再生时的安全改进的装置。 另外，配备有该装置的机动车辆（100）。
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6.发明申请SYSTEM AND METHOD FOR CONTROLLING REGENERATION WITHIN AN AFTER-TREATMENT COMPONENT OF A COMPRESSION-IGNITION ENGINE 有权用于控制压缩点火发动机后处理组件中再生的系统和方法公开(公告)号：US20140165535A1
公开(公告)日：2014-06-19
申请号：US13715301
申请日：2012-12-14
IPC分类号： F01N3/021
CPC分类号： F01N3/0238 , F01N3/027 , F01N3/035 , F01N3/0842 , F01N3/0871 , F01N3/103 , F01N3/2013 , F01N3/208 , F01N3/32 , F01N3/36 , F01N9/002 , F01N2560/025 , F01N2560/026 , F01N2610/02 , F01N2900/0416 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： A method for controlling regeneration within an after-treatment component of an engine comprises receiving a signal indicative of whether the engine is in an operating state or a non-operating state and detecting, based on the signal, when the engine has departed an operating state and entered a non-operating state. When the engine has departed an operating state and entered a non-operating state, a regeneration event is initiated. The regeneration event comprises causing a stream of air to flow through the after-treatment component and initiating a flow of fuel into the stream of air.
摘要翻译： 一种用于控制发动机的后处理部件中的再生的方法，包括接收指示发动机是处于运行状态还是非运行状态的信号，并且基于该信号检测何时发动机已经离开运行状态 并进入非运行状态。 当发动机已经离开操作状态并进入非操作状态时，启动再生事件。 再生事件包括使空气流流过后处理部件并启动燃料流入空气流中。
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7.发明授权Engine off particulate filter (“PF”) regeneration using a plurality of secondary energy storage devices 有权使用多个二次能量存储装置发动机关闭微粒过滤器（“PF”）再生公开(公告)号：US08720192B2
公开(公告)日：2014-05-13
申请号：US13462871
申请日：2012-05-03
IPC分类号： F01N3/027
CPC分类号： F01N3/027 , B60W10/06 , B60W10/26 , B60W2530/12 , F01N3/0238
摘要： An exhaust gas treatment system for an internal combustion engine is provided. The internal combustion engine has an engine off condition. The exhaust gas treatment system includes particulate filter (“PF”) device in fluid communication with an exhaust gas conduit, an electric heater, a primary energy storage device, a plurality of secondary energy storage devices, and a control module. The PF device has a filter structure for removal of particulates in the exhaust gas, and is selectively regenerated based on an amount of particulates trapped within the filter structure of the PF device. The electric heater is disposed upstream of the filter structure and is selectively energized to provide heat for regeneration of the PF device. The plurality of secondary energy storage devices are selectively connected to the primary energy storage device. The secondary energy storage devices selectively energize the electric heater.
摘要翻译： 提供了一种用于内燃机的废气处理系统。 内燃机具有发动机关闭状态。 排气处理系统包括与废气导管流体连通的微粒过滤器（“PF”）装置，电加热器，一次能量存储装置，多个二次能量存储装置和控制模块。 PF装置具有用于去除废气中的微粒的过滤结构，并且基于被捕获在PF装置的过滤器结构内的微粒量而选择性地再生。 电加热器设置在过滤器结构的上游，并且被选择性地通电以提供用于PF装置的再生的热量。 多个二次能量存储装置选择性地连接到一次能量存储装置。 二次能量存储装置选择性地激励电加热器。
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公开(公告)号：US08707684B2
公开(公告)日：2014-04-29
申请号：US12944287
申请日：2010-11-11
IPC分类号： F01N3/00
CPC分类号： F01N3/2066 , F01N3/0231 , F01N3/0238 , F01N3/027 , F01N3/035 , F01N3/22 , Y02T10/24
摘要： Control methods for regenerating particulate filter and an apparatus that includes an internal combustion engine, an exhaust gas conduit in fluid communication with and configured to receive exhaust gas from the internal combustion engine, and a particulate filter assembly in fluid communication with the exhaust gas conduit and configured to receive exhaust gas flowing therethrough. The particulate filter assembly includes a particulate filter to remove particulates from the exhaust gas, a heater device disposed near a front face of the particulate filter, to supply heat for regeneration of the particulate filter after shut-off of the internal combustion engine, and an air pump to input air into the particulate filter to transfer the supplied heat from the heater device to the particulate filter.
摘要翻译： 用于再生颗粒过滤器的控制方法和包括内燃机，与内燃机流体连通并构造成接收来自内燃机的废气的排气管道的设备，以及与废气管道流体连通的颗粒过滤器组件，以及 被配置为接收流过其中的废气。 颗粒过滤器组件包括微粒过滤器以从废气中除去微粒，设置在微粒过滤器前表面附近的加热器装置，用于在关闭内燃机之后为颗粒过滤器再生提供热量， 空气泵将空气输入到微粒过滤器中以将供应的热量从加热器装置转移到微粒过滤器。
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公开(公告)号：US20130340424A1
公开(公告)日：2013-12-26
申请号：US14011651
申请日：2013-08-27
CPC分类号： F01N3/0238 , F01N9/002 , F02B33/44 , F02M26/02 , F02M26/05 , F02M26/06 , Y02T10/121 , Y02T10/47
摘要： Methods and systems for controlling operation of exhaust of an engine including a particulate filter are provided. One example method includes generating vacuum during engine operation, and storing the vacuum. The method further includes, during or after engine shutdown, drawing ambient air through the particulate filter via the vacuum.
摘要翻译： 提供了用于控制包括微粒过滤器的发动机排气操作的方法和系统。 一个示例性方法包括在发动机操作期间产生真空并存储真空。 该方法还包括在发动机关闭期间或之后，通过真空抽吸环境空气通过微粒过滤器。
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公开(公告)号：US20120227382A1
公开(公告)日：2012-09-13
申请号：US13477885
申请日：2012-05-22
IPC分类号： F01N3/023
CPC分类号： F01N3/023 , F01N3/0233 , F01N3/0238 , F01N3/101 , F01N3/30 , F01N13/009 , F02D41/0055 , F02D41/029 , F02D41/042 , F02D2200/0812 , F02M26/05 , F02M26/06 , Y02A50/2324 , Y02A50/2325 , Y02T10/22
摘要： Various systems and method are described for controlling an engine having an exhaust system which includes a particulate filter. One example method comprises, after shutting down the engine and spinning down the engine to rest, operating a vacuum pump to draw fresh air through the exhaust system to an intake system, and regenerating at least a portion of the particulate filter during the engine rest.
摘要翻译： 描述了用于控制具有包括微粒过滤器的排气系统的发动机的各种系统和方法。 一个示例性方法包括：在关闭发动机并使发动机停转之后，操作真空泵以将新鲜空气通过排气系统吸入进气系统，以及在发动机停止期间再生至少一部分微粒过滤器。
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