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1. 发明申请

US20050223697A1 Engine exhaust gas purification device 有权
标题翻译：发动机废气净化装置
公开(公告)号：US20050223697A1
公开(公告)日：2005-10-13
申请号：US11099029
申请日：2005-04-05
申请人： Takao Onodera , Wei Wu , Takashi Haseyama , Takuro Iwashita , Atsushi Matsunuma , Shigeru Ikeda , Toshio Miyazaki
发明人： Takao Onodera , Wei Wu , Takashi Haseyama , Takuro Iwashita , Atsushi Matsunuma , Shigeru Ikeda , Toshio Miyazaki
IPC分类号： F02M25/07 , B01D46/42 , B01D53/94 , F01N3/02 , F02D9/02 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/12 , F02D41/38 , F02D41/40 , F02D43/00 , F02D45/00 , F02B17/00 , F01N3/00 , F02M25/06
CPC分类号： F02D41/029 , F02D41/005 , F02D41/123 , F02D41/402 , F02D41/405 , F02D2200/0812 , F02M26/15 , F02M26/23 , F02M26/36 , F02M26/50 , Y02T10/47
摘要： The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by burning the particulate matter trapped in the filter B, an EGR valve (8) provided in an EGR passage (7) linking the intake side and exhaust side of the engine 1, an injector (2) for injecting fuel into a cylinder, and control unit (20) for controlling the injector (2) and EGR valve (8). During regeneration of the filter B, the control unit (20) close the EGR valve (8) when fuel injection from the injector (2) is controlled to supply unburned fuel components to the catalyst A, and open the EGR valve (8) when no fuel is injected from the injector (2) upon a request for speed reduction or the like. In so doing, residual unburned fuel components in the EGR passage (7) are scavenged by air.
摘要翻译：本发明提供了一种发动机废气净化装置，其特征在于，具备：设置在发动机（1）的排气通路（10）内的用于捕集废气中所含的颗粒物质的过滤器B.催化剂A，用于通过燃烧颗粒物再生过滤器B. 捕集在过滤器B中的物质，设置在连接发动机1的进气侧排气侧的EGR通路（7）中的EGR阀（8），将燃料喷射到气缸中的喷射器（2），以及控制单元）用于控制喷射器（2）和EGR阀（8）。在过滤器B再生期间，控制单元（20）关闭EGR阀（8），当喷射器（2）的燃料喷射被控制以向催化剂A供应未燃烧的燃料组分，并且当EGR阀（8）在减速等要求时，没有燃料从喷射器（2）喷射。这样做，EGR通路（7）中残留的未燃燃料成分被空气清扫。

2. 发明授权

US07716920B2 Engine exhaust gas purification device 有权
标题翻译：发动机废气净化装置
公开(公告)号：US07716920B2
公开(公告)日：2010-05-18
申请号：US11099029
申请日：2005-04-05
申请人： Takao Onodera , Wei Wu , Takashi Haseyama , Takuro Iwashita , Atsushi Matsunuma , Shigeru Ikeda , Toshio Miyazaki
发明人： Takao Onodera , Wei Wu , Takashi Haseyama , Takuro Iwashita , Atsushi Matsunuma , Shigeru Ikeda , Toshio Miyazaki
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , F02D41/005 , F02D41/123 , F02D41/402 , F02D41/405 , F02D2200/0812 , F02M26/15 , F02M26/23 , F02M26/36 , F02M26/50 , Y02T10/47
摘要： The present invention provides an engine exhaust gas purification device comprising a filter B provided in an exhaust passage (10) of an engine (1) for trapping particulate matter contained in the exhaust gas, a catalyst A for regenerating the filter B by burning the particulate matter trapped in the filter B, an EGR valve (8) provided in an EGR passage (7) linking the intake side and exhaust side of the engine 1, an injector (2) for injecting fuel into a cylinder, and control unit (20) for controlling the injector (2) and EGR valve (8). During regeneration of the filter B, the control unit (20) close the EGR valve (8) when fuel injection from the injector (2) is controlled to supply unburned fuel components to the catalyst A, and open the EGR valve (8) when no fuel is injected from the injector (2) upon a request for speed reduction or the like. In so doing, residual unburned fuel components in the EGR passage (7) are scavenged by air.
摘要翻译：本发明提供了一种发动机废气净化装置，其特征在于，具备：设置在发动机（1）的排气通路（10）内的用于捕集废气中所含的颗粒物质的过滤器B.催化剂A，用于通过燃烧颗粒物再生过滤器B. 捕集在过滤器B中的物质，设置在连接发动机1的进气侧排气侧的EGR通路（7）中的EGR阀（8），将燃料喷射到气缸中的喷射器（2），以及控制单元）用于控制喷射器（2）和EGR阀（8）。在过滤器B再生期间，控制单元（20）关闭EGR阀（8），当喷射器（2）的燃料喷射被控制以向催化剂A供应未燃烧的燃料组分，并且当EGR阀（8）在减速等要求时，没有燃料从喷射器（2）喷射。这样做，EGR通路（7）中残留的未燃燃料成分被空气清扫。

3. 发明申请

US20050217252A1 Control method for an exhaust gas purification system and an exhaust gas purification system 有权
标题翻译：废气净化系统和废气净化系统的控制方法
公开(公告)号：US20050217252A1
公开(公告)日：2005-10-06
申请号：US11078493
申请日：2005-03-14
申请人： Hitoshi Sato , Tatsuo Mashiko , Takao Onodera , Atsushi Matsunuma , Takashi Haseyama , Wei Wu , Takuro Iwashita , Shigeru Ikeda
发明人： Hitoshi Sato , Tatsuo Mashiko , Takao Onodera , Atsushi Matsunuma , Takashi Haseyama , Wei Wu , Takuro Iwashita , Shigeru Ikeda
IPC分类号： F02D9/04 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/023 , F01N3/025 , F01N3/029 , F01N3/035 , F01N3/18 , F01N3/20 , F01N3/24 , F01N9/00 , F01N11/00 , F01N13/02 , F02D41/02 , F02D41/04 , F02D41/38 , F02D41/40 , F02D43/00 , F02D45/00 , F01N3/00
CPC分类号： F01N3/035 , F01N3/0231 , F01N3/0235 , F01N3/0253 , F01N9/002 , F01N13/0097 , F02D41/029 , F02D41/405 , F02D2041/228 , F02D2200/501 , F02D2250/11 , Y02T10/47
摘要： A method and system providing a vehicle condition detection means (38C) for detecting the stopped and traveling state of a vehicle, and when the vehicle condition detection means (38C) detects that the vehicle has stopped during operation of an exhaust gas temperature raising means (351C), closing an exhaust gas throttling valve (16) in addition to continuing the operation of the exhaust gas temperature raising means (351C), and subsequently, when the vehicle's traveling state is detected, opening the exhaust gas throttling valve (16) and continuing the operation of the exhaust gas temperature raising means (351C). Accordingly, in terms of the regeneration of a continuous regeneration-type DPF device (13) capable of significantly reducing the frequency with which the driver is urged to stop the vehicle and perform forced regeneration, the exhaust gas can be efficiently maintained at a high temperature, and reliable burning of PM is possible even for driving patterns featuring frequent waiting at traffic signals in urban areas, even upon transition to the stationary idling condition during automatic traveling regeneration.
摘要翻译：一种提供用于检测车辆的停止和行驶状态的车辆状态检测装置（38C）的方法和系统，并且当车辆状态检测装置（38C）检测到在废气升温操作期间车辆停止时除了继续排气升温装置（351C）的操作之外，还包括关闭排气调节阀（16）的装置（351C），随后当检测到车辆行驶状态时，打开排气调节阀（16），并且继续排气升温装置（351C）的运转。因此，就能够显着降低驾驶员被迫停车并进行强制再生的频率的连续再生型DPF装置（13）的再生方面，可以将废气有效地维持在高温即使在自动行驶再生期间过渡到静止怠速状态的情况下，即使在城市地区的交通信号频繁等待的驾驶模式中也可以可靠地燃烧PM。

4. 发明授权

US07104050B2 Control method for an exhaust gas purification system and an exhaust gas purification system 有权
标题翻译：废气净化系统和废气净化系统的控制方法
公开(公告)号：US07104050B2
公开(公告)日：2006-09-12
申请号：US11078493
申请日：2005-03-14
申请人： Hitoshi Sato , Tatsuo Mashiko , Takao Onodera , Atsushi Matsunuma , Takashi Haseyama , Wei Wu , Takuro Iwashita , Shigeru Ikeda
发明人： Hitoshi Sato , Tatsuo Mashiko , Takao Onodera , Atsushi Matsunuma , Takashi Haseyama , Wei Wu , Takuro Iwashita , Shigeru Ikeda
IPC分类号： F01N3/00
CPC分类号： F01N3/035 , F01N3/0231 , F01N3/0235 , F01N3/0253 , F01N9/002 , F01N13/0097 , F02D41/029 , F02D41/405 , F02D2041/228 , F02D2200/501 , F02D2250/11 , Y02T10/47
摘要： A method and system providing a vehicle condition detection means (38C) for detecting the stopped and traveling state of a vehicle, and when the vehicle condition detection means (38C) detects that the vehicle has stopped during operation of an exhaust gas temperature raising means (351C), closing an exhaust gas throttling valve (16) in addition to continuing the operation of the exhaust gas temperature raising means (351C), and subsequently, when the vehicle's traveling state is detected, opening the exhaust gas throttling valve (16) and continuing the operation of the exhaust gas temperature raising means (351C). Accordingly, in terms of the regeneration of a continuous regeneration-type DPF device (13) capable of significantly reducing the frequency with which the driver is urged to stop the vehicle and perform forced regeneration, the exhaust gas can be efficiently maintained at a high temperature, and reliable burning of PM is possible even for driving patterns featuring frequent waiting at traffic signals in urban areas, even upon transition to the stationary idling condition during automatic traveling regeneration.
摘要翻译：一种提供用于检测车辆的停止和行驶状态的车辆状态检测装置（38C）的方法和系统，并且当车辆状态检测装置（38C）检测到在废气升温操作期间车辆停止时除了继续排气升温装置（351C）的操作之外，还包括关闭排气调节阀（16）的装置（351C），随后当检测到车辆行驶状态时，打开排气调节阀（16），并且继续排气升温装置（351C）的运转。因此，就能够显着降低驾驶员被迫停车并进行强制再生的频率的连续再生型DPF装置（13）的再生方面，可以将废气有效地维持在高温即使在自动行驶再生期间过渡到静止怠速状态的情况下，即使在城市地区的交通信号频繁等待的驾驶模式中也可以可靠地燃烧PM。

5. 发明申请

US20050217245A1 Control method for an exhaust gas purification system and an exhaust gas purification system 审中-公开
标题翻译：废气净化系统和废气净化系统的控制方法
公开(公告)号：US20050217245A1
公开(公告)日：2005-10-06
申请号：US11078475
申请日：2005-03-14
申请人： Takashi Haseyama , Atsushi Matsunuma , Wei Wu , Takuro Iwashita , Takao Onodera , Shigeru Ikeda
发明人： Takashi Haseyama , Atsushi Matsunuma , Wei Wu , Takuro Iwashita , Takao Onodera , Shigeru Ikeda
IPC分类号： F02M25/07 , F01N3/02 , F01N3/023 , F01N3/025 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/40 , F02M25/06 , F01N3/00
CPC分类号： F01N3/0253 , F01N3/0231 , F02D41/0055 , F02D41/029 , F02D41/405 , Y02T10/47
摘要： The present invention concerns a exhaust gas purification system (1), provided with a continuous regeneration-type DPF device (13) having a filter (13b) for collecting PM in exhaust gas (G), provided in an exhaust gas passage (12) of an internal combustion engine (10) provided with an EGR system, for supplying unburned fuel to exhaust gas (G) flowing in the continuous regeneration-type DPF device (13) during the forced regeneration control for regenerating the filter (13b) by forcibly burning PM collected by the filter (13b), characterized by stopping the recirculation of EGR gas (Ge) to the intake passage (14) side in the EGR system, when unburned fuel is supplied to exhaust gas (G) during the forced regeneration control. This prevents the blocking of EGR passage (15) and the sticking of intake valve and so on, caused by the unburned fuel supplied into exhaust gas (G), during the forced regeneration control of the continuous regeneration-type DPF device (13). And this prevents engine troubles caused by these problems.
摘要翻译：本发明涉及一种设置有连续再生型DPF装置（13）的排气净化系统（1），其具有设置在废气通道（12）中的用于收集废气（G）中的PM的过滤器（13b）设置有EGR系统的内燃机（10），用于在用于再生过滤器（13b）的强制再生控制期间将未燃燃料供应到在连续再生型DPF装置（13）中流动的废气（G）通过强制燃烧由过滤器（13b）收集的PM，其特征在于，在所述EGR系统中，当在所述EGR系统中将未燃燃料供给到废气（G）时停止EGR气体（Ge）再循环到所述进气通道（14）强制再生控制。由此，连续再生型DPF装置（13）的强制再生控制期间，能够防止EGR流路（15）的阻塞和由供给废气（G）的未燃燃料引起的进气阀等的粘附。这样可以防止这些问题引起的发动机故障。

6. 发明授权

US08001774B2 Control method of exhaust gas purification system and exhaust gas purification system 有权
标题翻译：废气净化系统和废气净化系统的控制方法
公开(公告)号：US08001774B2
公开(公告)日：2011-08-23
申请号：US12223389
申请日：2007-01-10
申请人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
发明人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
IPC分类号： F01N3/00 , F01N1/00
CPC分类号： F02D41/029 , F01N3/0235 , F01N3/035 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N2240/36 , F01N2250/02 , F01N2430/085 , F01N2900/08 , F01N2900/1602 , F02D9/04 , F02D9/06 , F02D41/042 , F02D41/402 , F02D41/405 , F02D2200/0802 , F02D2200/0804 , F02D2200/0812 , F02M26/23 , Y02A50/2322 , Y02T10/47
摘要： At regeneration control while a vehicle mounting an internal combustion engine (10) is parked, both an exhaust throttle valve (13) and an exhaust brake valve (18) are used and if a catalyst temperature index temperature (Tg2) is lower than a predetermined first determining temperature (Tc1), first exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to a fully closed side and multiple injection is carried out in in-cylinder fuel injection control, while if a catalyst temperature index temperature (Tg2) is equal to the predetermined first determining temperature (Tc1) or above, second exhaust gas temperature rise control is conducted that the exhaust brake valve (18) is set to an open side, the exhaust throttle valve (13) is set to the fully closed side, and post injection is carried out in the in-cylinder fuel injection control. By this arrangement, while temperature rise efficiency of an exhaust gas flowing into a DPF (12) is enhanced, forced regeneration is carried out efficiently in a short time with avoiding overheat or abnormal combustion at the regeneration control of the DPF (12) while the vehicle is parked.
摘要翻译：在安装内燃机（10）的车辆停放时的再生控制中，使用排气节流阀（13）和排气制动阀（18），并且如果催化剂温度指数温度（Tg2）低于预定的首先确定温度（Tc1），进行第一废气升温控制，即排气制动阀（18）被设定为全封闭侧，并且在缸内燃料喷射控制中进行多次喷射，而如果催化剂温度指数温度（Tg2）等于预定的第一确定温度（Tc1）以上时，进行第二排气升温控制，使排气制动阀（18）设定为开放侧，排气节流阀（13）被设定到完全关闭侧，并且在缸内燃料喷射控制中进行后喷射。通过这种布置，当提高流入DPF（12）的废气的温度上升效率时，在DPF（12）的再生控制中避免过热或异常燃烧，在短时间内有效地进行强制再生，同时车停了。

7. 发明授权

US07992383B2 Method for controlling exhaust gas purification system and exhaust gas purification system 有权
标题翻译：排气净化系统和废气净化系统的控制方法
公开(公告)号：US07992383B2
公开(公告)日：2011-08-09
申请号：US12223443
申请日：2007-01-10
申请人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
发明人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
IPC分类号： F01N3/00 , F01N3/02
CPC分类号： F02D41/029 , F01N3/0235 , F01N3/035 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N2430/085 , F01N2560/06 , F02D9/04 , F02D9/06 , F02D41/086 , F02D2200/0802 , F02D2200/0804 , F02M26/23 , Y02T10/47
摘要： In regeneration control, when the catalyst temperature index temperature (Tg2) using the temperature of the oxidation catalyst (12a) as an index is below a predetermined first determination temperature (Tc1), the engine speed of idling is brought to a predetermined first target engine speed (Nei1) which is higher than the engine speed of idling (Nei0) in the ordinary operation, and, further, multi-injection is carried out. On the other hand, when the catalyst temperature index temperature (Tg2) is the predetermined first determination temperature (Tc1) or above, the engine speed of idling is brought to a predetermined second target engine speed (Nei2), which is lower than the predetermined first target engine speed (Nei1) and is higher than the engine speed of idling (Nei0) in ordinary operation, and, further, post injection is carried out, followed by raising of the temperature of an exhaust gas flown into a DPF apparatus (12b) to a predetermined second determination temperature (Tc2). According to the above constitution, in the regeneration control of the DPF apparatus (12b) in an internal combustion engine (10), the regeneration can be forcibly carried out with high efficiency while enhancing the temperature rise efficiency of the exhaust gas, and, at the same time, excessive rise in the exhaust temperature, a deterioration in fuel consumption, and the occurrence of noise are suppressed.
摘要翻译：在再生控制中，当使用氧化催化剂（12a）的温度作为指标的催化剂温度指数温度（Tg2）低于预定的第一确定温度（Tc1）时，将空转的发动机转速提供给预定的第一目标发动机在通常的运转中高于发动机转速（Nei0）的速度（Nei1），进一步进行多次喷射。另一方面，当催化剂温度指数温度（Tg2）为规定的第一判定温度（Tc1）以上时，使空转的发动机转速达到规定的第二目标发动机转速（Nei2），该第二目标发动机转速低于规定值第一目标发动机转速（Nei1）并且在正常操作中高于怠速发动机转速（Nei0），此外，进行后喷射，随后升高流入DPF装置的排气温度（12b ）到预定的第二确定温度（Tc2）。根据上述结构，在内燃机（10）中的DPF装置（12b）的再生控制中，能够在提高排气的升温效率的同时高效率地强制地进行再生，并且在同时，排气温度的过度上升，燃料消耗的恶化和噪音的发生被抑制。

8. 发明授权

US06966179B2 Exhaust gas purifying system 有权
标题翻译：废气净化系统
公开(公告)号：US06966179B2
公开(公告)日：2005-11-22
申请号：US10928699
申请日：2004-08-30
申请人： Takao Onodera , Hidetaka Shibata , Takashi Haseyama , Takeshi Igarashi , Takuro Iwashita , Masashi Gabe , Yoshihisa Tashiro
发明人： Takao Onodera , Hidetaka Shibata , Takashi Haseyama , Takeshi Igarashi , Takuro Iwashita , Masashi Gabe , Yoshihisa Tashiro
IPC分类号： F02D9/04 , F01N3/02 , F01N3/023 , F01N3/035 , F01N9/00 , F01N13/02 , F02B29/04 , F02B37/00 , F02D9/06 , F02D41/02 , F02D41/40 , F01N3/00
CPC分类号： F01N3/0235 , F01N3/0231 , F01N3/035 , F01N9/002 , F01N13/009 , F01N13/0097 , F01N2260/14 , F01N2430/08 , F01N2560/06 , F01N2560/08 , F02B29/0406 , F02B37/00 , F02D9/06 , F02D41/0245 , F02D41/029 , F02D41/401 , F02D41/402 , F02D41/403 , Y02T10/44 , Y02T10/47
摘要： To provide an exhaust gas purifying system capable of forcibly regenerating DPF by efficiently raising the temperature of exhaust gas even when an exhaust gas temperature is very low at the time of low load and low engine speed such as an idling operation. In an exhaust purifying system (1) having an exhaust throttling valve (31) and a DPF (3) in an exhaust passage and having regeneration control means (P1) for regenerating the DPF (3), the regeneration control means (P1) is provided with an exhaust gas temperature detection means (P22), a fuel injection control means (P11), and an exhaust throttling control means (P12) and includes regeneration control for performing the exhaust gas temperature raising control through the multistage delay injection by the fuel injection control means (P11) and through the exhaust throttling of the exhaust throttling valve (31).
摘要翻译：为了提供一种能够通过有效地提高排气温度来强制地再生DPF的排气净化系统，即使在低负载时的排气温度非常低，以及诸如怠速运转的低发动机转速下也是如此。在具有排气节流阀（31）的排气净化系统（1）和排气通路中具有DPF（3）的排气净化系统（1）中，具有再生DPF（3）的再生控制单元（P 1），再生控制单元）设置有废气温度检测装置（P22），燃料喷射控制装置（P11）和排气节流控制装置（P12），并且包括通过多级进行排气升温控制的再生控制通过燃料喷射控制装置（P 11）的延迟喷射和排气节流阀（31）的排气节流。

9. 发明申请

US20050044845A1 Exhaust gas purifying system 有权
标题翻译：废气净化系统
公开(公告)号：US20050044845A1
公开(公告)日：2005-03-03
申请号：US10928699
申请日：2004-08-30
申请人： Takao Onodera , Hidetaka Shibata , Takashi Haseyama , Takeshi Igarashi , Takuro Iwashita , Masashi Gabe , Yoshihisa Tashiro
发明人： Takao Onodera , Hidetaka Shibata , Takashi Haseyama , Takeshi Igarashi , Takuro Iwashita , Masashi Gabe , Yoshihisa Tashiro
IPC分类号： F02D9/04 , F01N3/02 , F01N3/023 , F01N3/035 , F01N9/00 , F01N13/02 , F02B29/04 , F02B37/00 , F02D9/06 , F02D41/02 , F02D41/40 , F01N3/00 , F01N5/04
CPC分类号： F01N3/0235 , F01N3/0231 , F01N3/035 , F01N9/002 , F01N13/009 , F01N13/0097 , F01N2260/14 , F01N2430/08 , F01N2560/06 , F01N2560/08 , F02B29/0406 , F02B37/00 , F02D9/06 , F02D41/0245 , F02D41/029 , F02D41/401 , F02D41/402 , F02D41/403 , Y02T10/44 , Y02T10/47
摘要： To provide an exhaust gas purifying system capable of forcibly regenerating DPF by efficiently raising the temperature of exhaust gas even when an exhaust gas temperature is very low at the time of low load and low engine speed such as an idling operation. In an exhaust purifying system (1) having an exhaust throttling valve (31) and a DPF (3) in an exhaust passage and having regeneration control means (P1) for regenerating the DPF (3), the regeneration control means (P1) is provided with an exhaust gas temperature detection means (P22), a fuel injection control means (P11), and an exhaust throttling control means (P12) and includes regeneration control for performing the exhaust gas temperature raising control through the multistage delay injection by the fuel injection control means (P11) and through the exhaust throttling of the exhaust throttling valve (31).
摘要翻译：为了提供一种能够通过有效地提高排气温度来强制地再生DPF的排气净化系统，即使在低负载时的排气温度非常低，以及诸如怠速运转的低发动机转速下也是如此。在排气净化系统（1）中，在排气通路中具有排气节流阀（31）和DPF（3），并具有用于再生DPF（3）的再生控制装置（P1），再生控制装置设置有排气温度检测装置（P22），燃料喷射控制装置（P11）和排气节流控制装置（P12），并且包括通过燃料的多级延迟喷射进行排气升温控制的再生控制喷射控制装置（P11）并且通过排气节流阀（31）的排气节流。

10. 发明申请

US20090025372A1 Method for Controlling Exhaust Gas Purification System and Exhaust Gas Purification System 有权
标题翻译：控制废气净化系统和废气净化系统的方法
公开(公告)号：US20090025372A1
公开(公告)日：2009-01-29
申请号：US12223443
申请日：2007-01-10
申请人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
发明人： Takao Onodera , Takashi Haseyama , Yoshinobu Watanabe , Takuro Iwashita , Kenji Hagio , Tatsuo Mashiko
IPC分类号： F01N9/00
CPC分类号： F02D41/029 , F01N3/0235 , F01N3/035 , F01N3/106 , F01N9/002 , F01N13/0097 , F01N2430/085 , F01N2560/06 , F02D9/04 , F02D9/06 , F02D41/086 , F02D2200/0802 , F02D2200/0804 , F02M26/23 , Y02T10/47
摘要： In regeneration control, when the catalyst temperature index temperature (Tg2) using the temperature of the oxidation catalyst (12a) as an index is below a predetermined first determination temperature (Tc1), the engine speed of idling is brought to a predetermined first target engine speed (Nei1) which is higher than the engine speed of idling (Nei0) in the ordinary operation, and, further, multi-injection is carried out. On the other hand, when the catalyst temperature index temperature (Tg2) is the predetermined first determination temperature (Tc1) or above, the engine speed of idling is brought to a predetermined second target engine speed (Nei2), which is lower than the predetermined first target engine speed (Nei1) and is higher than the engine speed of idling (Nei0) in ordinary operation, and, further, post injection is carried out, followed by raising of the temperature of an exhaust gas flown into a DPF apparatus (12b) to a predetermined second determination temperature (Tc2). According to the above constitution, in the regeneration control of the DPF apparatus (12b) in an internal combustion engine (10), the regeneration can be forcibly carried out with high efficiency while enhancing the temperature rise efficiency of the exhaust gas, and, at the same time, excessive rise in the exhaust temperature, a deterioration in fuel consumption, and the occurrence of noise are suppressed.
摘要翻译：在再生控制中，当使用氧化催化剂（12a）的温度作为指标的催化剂温度指数温度（Tg2）低于预定的第一确定温度（Tc1）时，将空转的发动机转速提供给预定的第一目标发动机在通常的运转中高于发动机转速（Nei0）的速度（Nei1），进一步进行多次喷射。另一方面，当催化剂温度指数温度（Tg2）为规定的第一判定温度（Tc1）以上时，使空转的发动机转速达到规定的第二目标发动机转速（Nei2），该第二目标发动机转速低于规定值第一目标发动机转速（Nei1）并且在正常操作中高于怠速发动机转速（Nei0），此外，进行后喷射，随后升高流入DPF装置的排气温度（12b ）到预定的第二确定温度（Tc2）。根据上述结构，在内燃机（10）中的DPF装置（12b）的再生控制中，能够在提高排气的升温效率的同时高效率地强制地进行再生，并且在同时，排气温度的过度上升，燃料消耗的恶化和噪音的发生被抑制。

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