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公开(公告)号：US07143756B2
公开(公告)日：2006-12-05
申请号：US10479961
申请日：2003-02-25
IPC分类号： F02D41/00
CPC分类号： F01N11/007 , F01N3/0814 , F01N3/0842 , F01N2550/05 , F01N2610/03 , F01N2900/0422 , Y02T10/47
摘要： If the amount of fuel added to exhaust gas becomes excessive as a result of an abnormality of an addition agent supply unit (60), the air-fuel ratio of exhaust as decreases. If an exhaust gas air-fuel ratio obtained from a value output from an A/F sensor (4) remains equal to or smaller than a predetermined value for a predetermined period, an ECU (2) determines that an addition agent supply unit (60) is abnormal. Upon detection of an abnormality of the addition agent supply unit (60), the ECU (2) incrteases an amount of EGR gas recirculated to the intake side by an EGR unit (40), reduces an amount of fuel injection from injectors (11), and restricts an operational state of an engine body (10) to a low-speed/low-load state. Also, the ECU (2) turns a warning lamp (7) on, warns a driver of the abnormality of the addition agent supply unit (60), and makes it possible to pull a vehicle over safely.
摘要翻译： 如果由于添加剂供给单元（60）的异常而使排出气体的燃料量过多，则排气的空燃比减少。 如果从A / F传感器（4）输出的值得到的废气空燃比在预定时间段内保持等于或小于预定值，则ECU（2）确定添加剂供应单元（60 ）是异常的。 在检测到添加剂供给单元（60）的异常的情况下，ECU（2）通过EGR单元（40）使进一步再循环的EGR气体的量变少，从喷射器（11）减少燃料喷射量， 并且将发动机体（10）的运转状态限制在低速/低负载状态。 此外，ECU（2）使警告灯（7）开启，向驾驶员警告添加剂供给单元（60）的异常，并且能够使车辆安全地驶过。
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公开(公告)号：US20050217250A1
公开(公告)日：2005-10-06
申请号：US11092810
申请日：2005-03-30
申请人： Tsukasa Kuboshima , Masumi Kinugawa
发明人： Tsukasa Kuboshima , Masumi Kinugawa
IPC分类号： B60W10/04 , B01D46/42 , B01D53/94 , B60W10/06 , B60W10/10 , B60W10/11 , F01N3/00 , F01N3/02 , F01N3/023 , F01N3/025 , F01N3/029 , F01N9/00 , F02B29/04 , F02B37/00 , F02B37/22 , F02B37/24 , F02D9/02 , F02D21/08 , F02D23/00 , F02D29/00 , F02D41/02 , F02D41/14 , F02D41/38 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F01N9/005 , F01N3/023 , F01N3/0253 , F01N9/002 , F01N2330/06 , F01N2430/06 , F01N2430/08 , F01N2430/085 , F01N2510/065 , F02B29/0406 , F02B37/00 , F02B37/24 , F02D41/029 , F02D41/1445 , F02D41/1448 , F02D41/187 , F02M26/05 , F02M26/23 , Y02T10/47
摘要： An exhaust emission control system for an internal combustion engine is located on a vehicle and provided with a particulate filter to accumulate particulate matters in an exhaust gas of the engine. The system has a pressure difference detector, an exhaust flow rate detector, a regeneration controller and a detection accuracy increaser. The pressure difference detector detects a differential pressure in the particulate filter. The exhaust flow rate detector detects an exhaust flow rate of the engine. The regeneration controller determines to regenerate the particulate filter based on the differential pressure and the exhaust flow rate. The detection accuracy increaser increases a detection accuracy of the differential pressure.
摘要翻译： 用于内燃机的废气排放控制系统位于车辆上并设置有颗粒过滤器以将颗粒物质累积在发动机的废气中。 该系统具有压力差检测器，排气流量检测器，再生控制器和检测精度增量器。 压差检测器检测微粒过滤器中的压差。 排气流量检测器检测发动机的排气流量。 再生控制器确定基于差压和排气流量再生微粒过滤器。 检测精度提高器提高差压的检测精度。
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公开(公告)号：US06951100B2
公开(公告)日：2005-10-04
申请号：US10722569
申请日：2003-11-28
CPC分类号： F02D41/029 , F01N9/002 , F01N2330/06 , F01N2430/06 , F01N2430/08 , F01N2430/085 , F01N2510/065 , F02D41/0055 , F02D41/1446 , F02D41/1448 , F02D41/187 , F02D2200/0812 , F02D2200/602 , F02M26/13
摘要： An electronic control unit (an ECU) detects an operating condition of an engine and quantity of particulate matters accumulated in a diesel particulate filter (a DPF) having an oxidation catalyst from a pressure difference across the DPF. The ECU operates temperature increasing means for regenerating the DPF based on the above detection results. During a low speed and light load operation, the ECU does not perform temperature increasing operation similar to an operation performed during a middle load operation. Instead, the ECU performs operation such as reduction of recirculated exhaust gas quantity in order to inhibit an increase in the quantity of the accumulated particulate matters. When the operating condition is changed afterward, the temperature increasing means is operated, so safe regeneration of the DPF is achieved.
摘要翻译： 电子控制单元（ECU）从DPF的压力差检测发动机的运转状态和积聚在具有氧化催化剂的柴油机微粒过滤器（DPF）中的颗粒物质的量。 ECU根据上述检测结果，操作升温装置，再生DPF。 在低速轻负载操作期间，ECU不执行类似于在中间负载操作期间执行的操作的升温操作。 替代地，ECU执行诸如减少再循环废气量的操作，以便抑制积聚的颗粒物质的量的增加。 当操作条件变化之后，升温装置被操作，从而实现了DPF的安全再生。
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公开(公告)号：US20050092286A1
公开(公告)日：2005-05-05
申请号：US10979179
申请日：2004-11-03
申请人： Satoru Sasaki , Tsukasa Kuboshima , Kanehito Nakamura , Masumi Kinugawa , Yasuhiro Kariya , Tokuji Kuronita
发明人： Satoru Sasaki , Tsukasa Kuboshima , Kanehito Nakamura , Masumi Kinugawa , Yasuhiro Kariya , Tokuji Kuronita
IPC分类号： F02B23/06 , F02D1/00 , F02D35/02 , F02D41/00 , F02D41/04 , F02D41/38 , F02D43/00 , F02M25/07 , F02M49/00 , F02M61/18 , F02B17/00
CPC分类号： F02M61/182 , F02B29/0418 , F02D35/02 , F02D41/005 , F02M26/05 , F02M26/25 , Y02T10/47
摘要： A compression ignition engine injects fuel through injection holes of an injector at a substantially constant injection rate to atomize the fuel so that the fuel can be easily vaporized and to make the fuel penetrate an atmosphere inside a cylinder. A spatial distribution of the injected fuel in which mixing of the fuel and air is promoted as the fuel recedes from the injection hole and the fuel reaches a premixing space where the fuel is premixed with the air is provided. The engine controls oxygen concentration inside the cylinder and an ignition delay so that a ratio of a quantity of the fuel injected before a start of ignition to a total fuel injection quantity falls within a range from 25% to 50% and so that the premixed gas formed in the premixing space is combusted serially.
摘要翻译： 压缩点火发动机以基本恒定的喷射速率喷射喷射器的喷射孔以使燃料雾化，使得燃料容易蒸发并使燃料穿过气缸内的气氛。 喷射的燃料的空间分布，其中当燃料从喷射孔中消退并且燃料到达燃料与空气预混合的预混合空间时，燃料和空气的混合被促进。 发动机控制气缸内的氧浓度和点火延迟，使得在点火开始之前喷射的燃料的量与总燃料喷射量的比率在25％至50％的范围内，并且使得预混合气体 在预混空间中形成的连续燃烧。
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公开(公告)号：US06756904B2
公开(公告)日：2004-06-29
申请号：US10173392
申请日：2002-06-18
IPC分类号： G08B2100
CPC分类号： F02D41/1448 , F01N9/002 , F01N11/00 , F01N11/002 , F01N2550/04 , F02D41/027 , F02D41/062 , F02D41/1441 , F02D41/1446 , F02D41/1454 , F02D41/187 , F02D41/2422 , F02D41/3809 , F02D41/405 , F02D2041/228 , F02D2200/0404 , F02D2200/0406 , F02D2200/0414 , F02D2200/0602 , F02D2200/1004 , F02D2200/703 , F02D2250/18 , Y02T10/44 , Y02T10/47
摘要： The permeability of a DPF 21 mounted on a diesel engine 1 is evaluated by calculating the apparent passage area (A) based upon a difference in the pressure between the upstream and the downstream sides of the DPF 21 and upon other engine data, an alarm is given to a driver based on the results of evaluation, and the operation mode is changed over to regenerate the DPF 21. An abnormal increase in the passage area caused by breakage is accurately detected, and it does not happen that the PM is released into the open air for extended periods of time due to the breakage of the DPF 21. Further, without the need of dismantling the DPF 21, the DPF 21 can be reliably burned and regenerated without being undesirably overheated in every operation mode of the engine 1.
摘要翻译： 通过基于DPF 21的上游侧和下游侧之间的压力差计算出视在通过面积（A），并根据其他发动机数据来评价安装在柴油发动机1上的DPF21的磁导率，报警为 根据评价结果给予驾驶员，并且改变操作模式以重新生成DPF 21.精确地检测由断裂引起的通道面积的异常增加，并且不会将PM释放到 由于DPF 21的断裂，长时间地露天。此外，在不需要拆卸DPF 21的情况下，DPF 21可以可靠地燃烧再生而不会在发动机1的每个操作模式中不合乎需要地过热。
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公开(公告)号：US07510129B2
公开(公告)日：2009-03-31
申请号：US11266188
申请日：2005-11-04
CPC分类号： F02M61/182 , F02M61/1826 , F02M61/1846
摘要： In a fuel injection nozzle including multiple nozzle hole groups each having multiple solitary nozzle holes, a group distance C between two of the nozzle hole groups is 0.8 or more times larger than an in-group hole distance α in a nozzle hole group. The group distance C is the minimum interval of inter-group intervals that are formed between (i) peripheral boundaries of solitary nozzle holes belonging to a first nozzle hole group and (ii) peripheral boundaries of solitary nozzle holes belonging to a second nozzle hole group adjacent to the first nozzle hole group. The in-group hole distance α is the minimum of intervals between peripheral boundaries belonging to each nozzle hole group.
摘要翻译： 在具有多个喷嘴孔组的多个喷嘴孔群的燃料喷射喷嘴中，两个喷嘴孔组之间的组间距离C比喷嘴孔组中的组内孔距离α大0.8倍以上。 组距离C是在（i）属于第一喷嘴孔组的单独喷嘴孔的外围边界和（ii）属于第二喷嘴孔组的单独喷嘴孔的周边边界之间形成的组间间隔的最小间隔 邻近第一喷嘴孔组。 组内孔距离α是属于每个喷嘴孔组的外围边界之间的间隔的最小值。
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公开(公告)号：US20080010977A1
公开(公告)日：2008-01-17
申请号：US11826027
申请日：2007-07-11
申请人： Kazuo Kojima , Jun Kawamura , Masumi Kinugawa
发明人： Kazuo Kojima , Jun Kawamura , Masumi Kinugawa
IPC分类号： F01N3/18
CPC分类号： F01N3/0814 , F01N3/0842 , F01N2610/03
摘要： An exhaust gas purification device senses an air-fuel ratio of exhaust gas flowing into a catalyst and performs rich purge control for supplying fuel for reduction to the catalyst. The device calculates a total reducing agent amount consumed for the reduction during the rich purge control based on the air-fuel ratio and a fresh air amount as of the rich purge control. The device sets a specified air-fuel ratio state for controlling the air-fuel ratio in a certain range enabling more precise measurement of the air-fuel ratio than in the rich purge control. The device corrects the total reducing agent amount based on a difference between an injection amount command value as of the rich purge control and the injection amount command value in the specified air-fuel ratio state and the air-fuel ratio sensed in the specified air-fuel ratio state.
摘要翻译： 废气净化装置检测流入催化剂的排气的空燃比，并进行浓缩的清洗控制，将催化剂的还原用燃料供给。 该设备基于空燃比和浓净清洗控制中的新鲜空气量，计算在浓净清洗控制期间所消耗的总还原剂量。 该装置设定规定的空燃比状态，以将空燃比控制在一定范围内，从而能够进行与空气燃料比相比更浓的测量。 该装置根据在浓空气控制中的喷射量指令值与规定的空燃比状态下的喷射量指令值与规定的空燃比状态下检测的空燃比之间的差异，校正总还原剂量， 燃料比状态。
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38.发明授权Exhaust gas filter regenerating apparatus effectively burning particulate material 失效废气过滤器再生装置有效地燃烧颗粒物质公开(公告)号：US06854265B2
公开(公告)日：2005-02-15
申请号：US10337895
申请日：2003-01-08
申请人： Makoto Saito , Shigeto Yahata , Masumi Kinugawa
发明人： Makoto Saito , Shigeto Yahata , Masumi Kinugawa
IPC分类号： F02M25/07 , F01N3/02 , F01N3/025 , F01N3/027 , F01N9/00 , F02D9/02 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/38 , F02D43/00 , F01N3/00
CPC分类号： F02D41/1448 , F01N3/025 , F01N3/027 , F01N9/002 , F01N2330/06 , F01N2430/06 , F01N2430/085 , F01N2900/0421 , F02D41/029 , F02D41/1446 , F02D41/187 , F02D41/38 , F02D2041/0017 , F02D2041/0022 , Y02T10/47 , Y10S55/30
摘要： Particulate material collected in a filter (PM) is burnt through a selected one of partial and perfect regenerating processes. The partial regenerating process starts, when an amount of PM is predicted to exceed a value between 2 to 10 g/l, and terminates, when the amount of PM is predicted to fall below a value between 1 to 4 g/l, whereby a part of PM is burned to an extent that incombustible ash contained in the filter (ASH) can not easily pass through the filter. The perfect regenerating process starts, when an amount of ASH is predicted to exceed a value between 0.05 to 0.25 g/l, and terminates, when the amount of PM is predicted to fall below 1 g/l, whereby a substantially entire part of PM is burnt to an extent that ASH can easily pass through the filter.
摘要翻译： 在过滤器（PM）中收集的颗粒材料通过选择的部分和完美的再生过程中的燃烧。 当预测PM的量超过2至10g / l的值时，部分再生过程开始，并且当PM的量被预测为低于1至4g / l之间的值时终止，从而a PM的一部分燃烧到过滤器（ASH）中包含的不可燃灰不能容易地通过过滤器的程度。 当预测ASH的量超过0.05至0.25g / l的值时，完美的再生过程开始，并且当预测PM的量低于1g / l时终止，从而PM的基本上全部部分 被燃烧到ASH可以容易地通过过滤器的程度。
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公开(公告)号：US06826903B2
公开(公告)日：2004-12-07
申请号：US10440140
申请日：2003-05-19
IPC分类号： F01N300
摘要： An exhaust gas recirculation (EGR) system of an internal combustion engine has an EGR cooler in an EGR passage connecting an exhaust manifold with an intake manifold. The EGR cooler cools EGR gas recirculated through the EGR passage. Cooling performance detecting means included in an electronic control unit (ECU) determines that cooling performance of the EGR cooler is degraded when intake pressure measured by an intake pressure sensor is lower than a normal intake pressure by at least a predetermined value. When the degradation of the cooling performance is detected, cooling performance regeneration controlling means included in the ECU increases the temperature inside the EGR cooler by heating the exhaust gas to eliminate soot or unburned hydrocarbon by oxidization. Thus, the cooling performance of the EGR cooler is regenerated.
摘要翻译： 内燃机的废气再循环（EGR）系统在排气歧管与进气歧管连接的EGR通路中具有EGR冷却器。 EGR冷却器冷却通过EGR通道再循环的EGR气体。 包括在电子控制单元（ECU）中的冷却性能检测装置确定当由进气压力传感器测量的进气压力低于正常进气压力至少预定值时，EGR冷却器的冷却性能降低。 当检测到冷却性能的劣化时，包括在ECU中的冷却性能再生控制装置通过加热废气以通过氧化来消除烟灰或未燃烧的烃来增加EGR冷却器内部的温度。 因此，再生EGR冷却器的冷却性能。
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公开(公告)号：US06758039B2
公开(公告)日：2004-07-06
申请号：US10460207
申请日：2003-06-13
IPC分类号： F01N302
CPC分类号： F02D41/1445 , F01N3/023 , F01N3/035 , F01N9/002 , F01N11/002 , F01N2430/085 , F01N2900/0421 , F01N2900/0422 , F02D41/029 , F02D41/1448 , F02D41/187 , F02D2200/0404 , F02D2200/0812 , Y02T10/47
摘要： In an exhaust gas cleaning system of an internal combustion engine having a diesel particulate filter (DPF), measuring accuracy of a collection quantity of particulate matters collected by the DPF is estimated based on an accelerator position change rate and an exhaust gas flow rate. When the measuring accuracy is high, the collection quantity is calculated based on a pressure difference and the exhaust gas flow rate at the DPF. If the measuring accuracy is low, an increment value of the collection quantity is calculated based on a quantity of the particulate matters discharged from an engine main body. Then, the collection quantity is calculated by adding the collection quantity increment value to the previous collection quantity calculated based on the pressure difference and the exhaust gas flow rate while the measuring accuracy is high.
摘要翻译： 在具有柴油机微粒过滤器（DPF）的内燃机的废气净化系统中，基于加速器位置变化率和废气流量来推定由DPF收集的颗粒物质的收集量的测量精度。 当测量精度高时，基于DPF的压力差和排气流量来计算收集量。 如果测量精度低，则基于从发动机主体排出的颗粒物的量来计算收集量的增量值。 然后，通过将采集量增量值与在测量精度高时基于压差和排气流量计算的先前收集量相加来计算收集量。
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