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公开(公告)号：US07266944B2
公开(公告)日：2007-09-11
申请号：US11296222
申请日：2005-12-08
申请人： Shinichiro Okugawa , Kazuo Kojima
发明人： Shinichiro Okugawa , Kazuo Kojima
IPC分类号： F01N3/00
CPC分类号： F02D35/0023 , F01N3/021 , F02B3/06 , F02B37/00 , F02D23/02 , F02D41/0002 , F02D41/0065 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02P5/00 , Y02T10/42
摘要： In order to restrict an over-temperature-rising of a diesel particulate filter (DPF), an electronic control unit (ECU) computes a flow rate of the exhaust gas flowing through the DPF so that temperature of the DPF is kept at a temperature in which the DPF can be regenerated. By adjusting a position of a throttle valve, a fresh air flow rate is adjusted so that the flow rate of the exhaust gas flowing through the DPF is equal to a target flow rate of the exhaust gas.
摘要翻译： 为了限制柴油机微粒过滤器（DPF）的过度升温，电子控制单元（ECU）计算流过DPF的排气的流量，使得DPF的温度保持在 DPF可以再生。 通过调整节流阀的位置，调节新鲜空气流量，使流过DPF的废气的流量等于排气的目标流量。
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公开(公告)号：US07111455B2
公开(公告)日：2006-09-26
申请号：US11111791
申请日：2005-04-22
申请人： Shinichiro Okugawa , Kazuo Kojima
发明人： Shinichiro Okugawa , Kazuo Kojima
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , F01N3/0253 , F01N3/035 , F01N9/002 , F01N9/005 , F01N13/009 , F01N2250/02 , F02D41/1401 , F02D41/1446 , F02D41/2451 , F02D41/405 , F02D2041/1431 , F02D2041/1433 , F02D2200/0802 , F02D2200/0804 , F02D2200/0812 , Y02T10/47
摘要： An exhaust cleaning device of an internal combustion engine includes a particulate filter disposed in an exhaust duct of the internal combustion engine. A regeneration control increases the temperature of the particulate filter to approximately a predetermined target temperature but the amount of the temperature increase controllably corrected by the regeneration control.
摘要翻译： 内燃机的排气净化装置包括设置在内燃机的排气管内的微粒过滤器。 再生控制将微粒过滤器的温度提高到大约预定的目标温度，但通过再生控制可控地校正温度升高量。
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公开(公告)号：US20060117740A1
公开(公告)日：2006-06-08
申请号：US11296222
申请日：2005-12-08
申请人： Shinichiro Okugawa , Kazuo Kojima
发明人： Shinichiro Okugawa , Kazuo Kojima
CPC分类号： F02D35/0023 , F01N3/021 , F02B3/06 , F02B37/00 , F02D23/02 , F02D41/0002 , F02D41/0065 , F02D41/029 , F02D41/405 , F02D2200/0812 , F02M26/05 , F02P5/00 , Y02T10/42
摘要： In order to restrict an over-temperature-rising of a diesel particulate filter (DPF), an electronic control unit (ECU) computes a flow rate of the exhaust gas flowing through the DPF so that temperature of the DPF is kept at a temperature in which the DPF can be regenerated. By adjusting a position of a throttle valve, a fresh air flow rate is adjusted so that the flow rate of the exhaust gas flowing through the DPF is equal to a target flow rate of the exhaust gas.
摘要翻译： 为了限制柴油机微粒过滤器（DPF）的过度升温，电子控制单元（ECU）计算流过DPF的排气的流量，使得DPF的温度保持在 DPF可以再生。 通过调整节流阀的位置，调节新鲜空气流量，使流过DPF的废气的流量等于排气的目标流量。
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公开(公告)号：US20050252198A1
公开(公告)日：2005-11-17
申请号：US11127172
申请日：2005-05-12
IPC分类号： F01N3/02 , B01D46/42 , B01D53/94 , F01N3/035 , F01N3/08 , F01N3/20 , F01N3/24 , F02D41/02 , F02D41/14 , F02D41/40 , F01N3/10 , F01N3/00
CPC分类号： F02D41/1448 , F01N3/035 , F01N2430/08 , F01N2430/085 , F02D31/008 , F02D41/0245 , F02D41/025 , F02D41/027 , F02D41/029 , F02D41/1446 , F02D41/401 , F02D41/402 , F02D41/403 , F02D41/405 , F02D2200/0812 , Y02T10/26 , Y02T10/44
摘要： In an engine, when it is determined that catalyst, which is held on a filter substrate of a particulate filter, is not in an active state, an ECU executes a fuel injection for mainly obtaining an engine power near a top dead center of a crank. Then, the ECU executes a subsequent fuel injection after lapse of a sufficient injection interval, which does not cause misfiring, to increase the temperature of exhaust gas outputted from the engine. In this way, the temperature of the filter is rapidly increased.
摘要翻译： 在发动机中，当确定保持在微粒过滤器的过滤器基板上的催化剂不处于活动状态时，ECU执行主要获得曲轴上死点附近的发动机功率的燃料喷射 。 然后，在经过了不引起失火的足够的喷射间隔之后ECU执行随后的燃料喷射，以增加从发动机输出的废气的温度。 以这种方式，过滤器的温度快速增加。
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公开(公告)号：US20050241301A1
公开(公告)日：2005-11-03
申请号：US11111791
申请日：2005-04-22
申请人： Shinichiro Okugawa , Kazuo Kojima
发明人： Shinichiro Okugawa , Kazuo Kojima
IPC分类号： F02D45/00 , B01D46/42 , B01D53/86 , B01D53/94 , F01N3/00 , F01N3/02 , F01N3/023 , F01N3/025 , F01N3/035 , F01N3/18 , F01N3/24 , F01N9/00 , F01N11/00 , F01N13/02 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/24 , F02D41/30
CPC分类号： F02D41/029 , F01N3/0253 , F01N3/035 , F01N9/002 , F01N9/005 , F01N13/009 , F01N2250/02 , F02D41/1401 , F02D41/1446 , F02D41/2451 , F02D41/405 , F02D2041/1431 , F02D2041/1433 , F02D2200/0802 , F02D2200/0804 , F02D2200/0812 , Y02T10/47
摘要： An exhaust cleaning device of an internal combustion engine includes a particulate filter, temperature increase means, operational state detection means, temperature detection means, particulates accumulation amount estimate means, regeneration control means, and correction means. The particulate filter is disposed in an exhaust duct of the internal combustion engine. The temperature increase means increases a temperature of the particulate filter. The operational state detection means detects an operational state of the internal combustion engine. The temperature detection means detects the temperature of the particulate filter. The particulates accumulation amount estimate means estimates a particulates accumulation amount on the particulate filter. The regeneration control means operates the temperature increase means to increase the temperature of the particulate filter to approximately a predetermined target temperature. The correction means corrects an operational amount of the temperature increase means by the regeneration control means.
摘要翻译： 内燃机的排气净化装置具备微粒过滤器，升温装置，运转状态检测单元，温度检测单元，微粒堆积量估计单元，再生控制单元和校正单元。 颗粒过滤器设置在内燃机的排气管道中。 温度升高装置增加微粒过滤器的温度。 操作状态检测装置检测内燃机的运行状态。 温度检测装置检测微粒过滤器的温度。 颗粒堆积量估计装置估计颗粒过滤器上的颗粒堆积量。 再生控制装置操作温度升高装置，以将颗粒过滤器的温度升高到预定的目标温度。 校正装置通过再生控制装置校正温度上升装置的操作量。
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公开(公告)号：US07254941B2
公开(公告)日：2007-08-14
申请号：US11127172
申请日：2005-05-12
CPC分类号： F02D41/1448 , F01N3/035 , F01N2430/08 , F01N2430/085 , F02D31/008 , F02D41/0245 , F02D41/025 , F02D41/027 , F02D41/029 , F02D41/1446 , F02D41/401 , F02D41/402 , F02D41/403 , F02D41/405 , F02D2200/0812 , Y02T10/26 , Y02T10/44
摘要： In an engine, when it is determined that catalyst, which is held on a filter substrate of a particulate filter, is not in an active state, an ECU executes a fuel injection for mainly obtaining an engine power near a top dead center of a crank. Then, the ECU executes a subsequent fuel injection after lapse of a sufficient injection interval, which does not cause misfiring, to increase the temperature of exhaust gas outputted from the engine. In this way, the temperature of the filter is rapidly increased.
摘要翻译： 在发动机中，当确定保持在微粒过滤器的过滤器基板上的催化剂不处于活动状态时，ECU执行主要获得曲轴上死点附近的发动机功率的燃料喷射 。 然后，在经过了不引起失火的足够的喷射间隔之后ECU执行随后的燃料喷射，以增加从发动机输出的废气的温度。 以这种方式，过滤器的温度快速增加。
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公开(公告)号：US07231761B2
公开(公告)日：2007-06-19
申请号：US11097249
申请日：2005-04-04
CPC分类号： F02D41/405 , F01N9/002 , F01N11/005 , F01N13/009 , F01N2250/02 , F01N2430/08 , F01N2430/085 , F01N2900/0422 , F02B29/0418 , F02D41/005 , F02D41/029 , F02D41/1402 , F02D41/187 , F02D2041/1422 , F02D2041/1431 , F02D2041/1433 , F02D2200/0802 , F02D2200/0812 , Y02T10/44 , Y02T10/47
摘要： An electronic control unit of an internal combustion engine calculates a basic post-injection quantity of temperature increasing means if a deposition quantity of particulate matters deposited on a diesel particulate filter (DPF) exceeds a predetermined value. Then, a final post-injection quantity is calculated by correcting the basic post-injection quantity based on a temperature correction value, which is calculated by multiplying a deviation between DPF upstream exhaust gas temperature and target temperature and past temperature correction values by feedback gains. The feedback gains are switched in accordance with a delay in an exhaust gas temperature change in a present operating state, based on an intake air quantity sensed by an air flow meter. Thus, response can be improved, while maintaining stability.
摘要翻译： 如果沉积在柴油机微粒过滤器（DPF）上的颗粒物质的沉积量超过预定值，则内燃机的电子控制单元计算升温装置的基本后喷射量。 然后，通过基于通过将DPF上游排气温度与目标温度之间的偏差乘以反馈增益的过去温度校正值而计算的温度校正值来校正基本后喷射量来计算最终后喷射量。 根据由空气流量计感测到的进气量，根据当前运行状态的排气温度变化的延迟来切换反馈增益。 因此，可以在保持稳定性的同时提高响应。
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公开(公告)号：US20050217256A1
公开(公告)日：2005-10-06
申请号：US11097249
申请日：2005-04-04
IPC分类号： F02D45/00 , B01D46/42 , F01N3/00 , F01N3/02 , F01N3/023 , F01N3/025 , F01N3/029 , F01N7/00 , F01N9/00 , F01N11/00 , F02B29/04 , F02D21/08 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/18 , F02D41/30 , F02D41/38 , F02D41/40
CPC分类号： F02D41/405 , F01N9/002 , F01N11/005 , F01N13/009 , F01N2250/02 , F01N2430/08 , F01N2430/085 , F01N2900/0422 , F02B29/0418 , F02D41/005 , F02D41/029 , F02D41/1402 , F02D41/187 , F02D2041/1422 , F02D2041/1431 , F02D2041/1433 , F02D2200/0802 , F02D2200/0812 , Y02T10/44 , Y02T10/47
摘要： An electronic control unit of an internal combustion engine calculates a basic post-injection quantity of temperature increasing means if a deposition quantity of particulate matters deposited on a diesel particulate filter (DPF) exceeds a predetermined value. Then, a final post-injection quantity is calculated by correcting the basic post-injection quantity based on a temperature correction value, which is calculated by multiplying a deviation between DPF upstream exhaust gas temperature and target temperature and past temperature correction values by feedback gains. The feedback gains are switched in accordance with a delay in an exhaust gas temperature change in a present operating state, based on an intake air quantity sensed by an air flow meter. Thus, response can be improved, while maintaining stability.
摘要翻译： 如果沉积在柴油机微粒过滤器（DPF）上的颗粒物质的沉积量超过预定值，则内燃机的电子控制单元计算升温装置的基本后喷射量。 然后，通过基于通过将DPF上游排气温度与目标温度之间的偏差乘以反馈增益的过去温度校正值而计算的温度校正值来校正基本后喷射量来计算最终后喷射量。 根据由空气流量计感测到的进气量，根据当前运行状态的排气温度变化的延迟来切换反馈增益。 因此，可以在保持稳定性的同时提高响应。
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公开(公告)号：US07313913B2
公开(公告)日：2008-01-01
申请号：US11077205
申请日：2005-03-11
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , F01N2250/02 , F01N2250/06 , F01N2260/04 , F01N2430/06 , F02D41/0055 , F02D2041/0017
摘要： An oxidation catalyst is disposed upstream of a diesel particulate filter (DPF) in an exhaust passage of a diesel engine. An electronic control unit (ECU) operates temperature increasing circuit to combust and eliminate particulate matters deposited on the DPF. The ECU determines execution and stoppage of regeneration of the DPF based on a quantity of the particulate matters deposited on the DPF. The ECU increases an exhaust gas recirculation quantity (EGR quantity) during the regeneration to reduce an intake air quantity from the intake air quantity in a non-regeneration period and to achieve a flow rate of the exhaust gas passing through the DPF suitable for the temperature increase. The ECU corrects a valve opening degree of an EGR control valve based on the sensed intake air quantity to reduce a variation in the exhaust gas flow rate.
摘要翻译： 氧化催化剂设置在柴油发动机的排气通道中的柴油机微粒过滤器（DPF）的上游。 电子控制单元（ECU）操作升温电路来燃烧和消除沉积在DPF上的颗粒物质。 ECU根据沉积在DPF上的颗粒物质的量来确定DPF再生的执行和停止。 ECU在再生期间增加废气再循环量（EGR量），以在非再生时段内从进气量减少进气量，并且实现通过适合于温度的DPF的排气的流量 增加。 ECU根据检测到的进气量来校正EGR控制阀的阀开度，以减少废气流量的变化。
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公开(公告)号：US07146804B2
公开(公告)日：2006-12-12
申请号：US10460208
申请日：2003-06-13
IPC分类号： F01N3/00
CPC分类号： F02D41/1448 , F01N3/023 , F01N9/002 , F02B29/0406 , F02B37/00 , F02D41/0007 , F02D41/029 , F02D41/1446 , F02D41/187 , F02D2200/0812 , F02D2200/501 , F02M26/15 , F02M26/23 , Y02T10/144 , Y02T10/47
摘要： An exhaust gas cleaning system for a diesel engine has a diesel particulate filter (DPF) disposed in an exhaust pipe. An electronic control unit of the system controls regeneration of the DPF. The DPF is heated and regenerated only when an operating state of the engine is in an area where temperature-increasing efficiency is high, in the case where a quantity of particulate matters collected by the DPF is equal to or greater than a first threshold and is less than a second threshold. The second threshold is greater than the first threshold. If the quantity of the collected particulate matters becomes equal to or greater than the second threshold, the regeneration is performed even if the operating state is not in the area of the high temperature-increasing efficiency.
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