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公开(公告)号：US09328643B2
公开(公告)日：2016-05-03
申请号：US13699541
申请日：2011-05-16
CPC分类号： F01N3/208 , F01N2610/02 , F01N2610/1493 , F01N2900/1404 , F01N2900/1626 , Y02T10/24
摘要： A selective catalytic reduction (SCR) system that can prevent fixation of urea solution to an interior of a dosing valve when the urea solution is not injected through the dosing valve. An SCR system closes a dosing valve when the exhaust gas temperature is lower than a temperature at which an SCR catalyst becomes active and is provided with a fixation prevention system that opens the dosing valve and controls a supply module to feed the urea solution in the dosing valve back to a urea tank to prevent fixation of the urea solution to the interior of the dosing valve, when the exhaust gas temperature is equal to or higher than a temperature at which the urea solution crystallizes and lower than the temperature at which the SCR catalyst becomes active.
摘要翻译： 一种选择性催化还原（SCR）系统，当尿素溶液不通过计量阀注入时，可以防止尿素溶液固定在计量阀的内部。 当排气温度低于SCR催化剂活化的温度时，SCR系统关闭计量阀，并且设置有打开定量阀的定影防止系统，并且控制供应模块以在给料中供给尿素溶液 阀返回到尿素罐以防止尿素溶液固定在计量阀的内部，当排气温度等于或高于尿素溶液结晶的温度并且低于SCR催化剂的温度时 变得活跃。
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公开(公告)号：US09127584B2
公开(公告)日：2015-09-08
申请号：US13699524
申请日：2011-05-16
CPC分类号： F01N11/00 , B01D2251/2067 , F01N3/208 , F01N2550/05 , F01N2610/02 , F01N2610/1453 , F01N2610/1493 , Y02A50/2325 , Y02T10/24
摘要： A recovery control system that allows a dosing valve to recover from a malfunction to a normal state, or a liquid feed line through which urea solution is fed to recover from clogging to a normal state. An abnormality detector detects an abnormality of the dosing valve and a recovery controller controls a supply module to feed urea solution in the dosing valve back to an urea tank when the abnormality detector detects the abnormality.
摘要翻译： 一种允许计量阀从故障恢复到正常状态的恢复控制系统或通过其供应尿素溶液以从堵塞恢复到正常状态的液体供给管线。 异常检测器检测计量阀的异常，并且当异常检测器检测到异常时，恢复控制器控制供给模块将计量阀中的尿素溶液送回尿素罐。
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公开(公告)号：US08522533B2
公开(公告)日：2013-09-03
申请号：US12227931
申请日：2007-05-14
申请人： Takao Onodera , Naofumi Ochi , Shigeru Ikeda , Tatsuo Mashiko
发明人： Takao Onodera , Naofumi Ochi , Shigeru Ikeda , Tatsuo Mashiko
IPC分类号： F01N3/00
CPC分类号： F01N3/0231 , F01N3/0235 , F01N3/035 , F01N9/002 , F01N13/0097 , F01N2250/02 , F01N2260/14 , F01N2430/085 , F01N2560/08 , F01N2900/0422 , F01N2900/08 , F01N2900/1606 , F02D41/029 , F02D41/08 , F02D2200/0812 , Y02T10/47
摘要： When an internal combustion engine is in a low rotation speed driving condition, a duration of the low rotation speed driving condition is measured, and when this duration exceeds a predetermined time, the forced regeneration control is performed. Thus, even when an exhaust flow rate is small and an estimation of a particulate matter accumulated amount due to a pressure difference between front and back sides of a filter is difficult, a forced regeneration time can be accurately judged, the deterioration of fuel efficiency that is caused by excessive trapped particulate matter can be avoided, and thermal runaway that is caused by the excessive particulate matter, and the melting damage of the diesel particulate filter due to this thermal runaway, can be prevented.
摘要翻译： 当内燃机处于低转速行驶状态时，测量低转速行驶状态的持续时间，当该持续时间超过规定时间时，进行强制再生控制。 因此，即使排气流量小，并且由于过滤器的前后侧之间的压力差导致的颗粒物质累积量的估计困难，因此可以准确地判断强制再生时间，燃料效率的劣化 是由于过量捕获的颗粒物质可以避免的，并且可以防止由于这种热失控导致的过量颗粒物质引起的热失控和柴油颗粒过滤器的熔化损坏。
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公开(公告)号：US20130058833A1
公开(公告)日：2013-03-07
申请号：US13697912
申请日：2011-05-16
申请人： Takao Onodera , Mami Hotta , Masanobu Minezawa
发明人： Takao Onodera , Mami Hotta , Masanobu Minezawa
CPC分类号： F01N3/208 , F01N3/035 , F01N3/106 , F01N9/002 , F01N13/009 , F01N2610/02 , F01N2610/14 , F01N2610/1493 , F01N2900/1402 , F01N2900/1404 , F01N2900/1622 , F02D41/029 , Y02T10/24 , Y02T10/47
摘要： Provided is an exhaust gas purification system that can prevent adhesion of urea water in a dosing valve during DPF regeneration. An exhaust gas purification system 100 includes a DCU 126 that controls a supply module 106 to inject or return urea water inside a dosing valve 104 to a urea tank 105 in order to remove urea water accumulated in the dosing valve 104 when receiving a DPF regeneration authorization request from an ECM 125, and then transmits a DPF regeneration authorization to the ECM 125 when determining that an NH3 amount of an SCR catalyst is less than or equal to a prescribed value.
摘要翻译： 提供了一种排气净化系统，其可以防止DPF再生期间尿素水在计量阀中的粘附。 排气净化系统100包括DCU126，DCU126控制供给模块106将剂量阀104内的尿素水注入或返回到尿素罐105，以便在接收DPF再生授权时去除积存在计量阀104中的尿素水 当确定SCR催化剂的NH 3量小于或等于规定值时，从ECM 125请求，然后向ECM 125发送DPF再生授权。
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5.发明授权公开(公告)号：US08316637B2
公开(公告)日：2012-11-27
申请号：US12449847
申请日：2008-01-15
IPC分类号： F01N3/00
CPC分类号： F02D41/029 , B01D53/944 , B01D53/9495 , B01D53/96 , B01D2258/012 , F01N3/023 , F01N3/0232 , F01N9/002 , F01N2570/10 , F02D2041/228 , F02D2200/0812 , Y02T10/47
摘要： In emergency regeneration, i.e., after a judgment is made that purification is insufficient after ending forced regeneration, forced regeneration has expired before completion, or when a pressure difference across a diesel particulate filter exceeds a predetermined first judging pressure difference when traveling distance of a vehicle is shorter than a predetermined distance, an alarm for urging manual regeneration is issued. When manual regeneration is designated thereafter by the vehicle's user, manual regeneration is performed. When predetermined conditions are satisfied before receiving a designation of manual regeneration, automatic regeneration is performed.
摘要翻译： 在紧急再生中，即在结束强制再生之后判断为净化不充分时，强制再生在完成前已经到期，或当柴油机微粒过滤器上的压力差超过车辆行驶距离时的预定的第一判定压力差 比预定距离短，发出用于促进手动再生的报警。 当车辆用户此后指定手动再生时，进行手动再生。 在接收到手动再生的指定之前，当满足预定条件时，执行自动再生。
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6.发明授权公开(公告)号：US08307629B2
公开(公告)日：2012-11-13
申请号：US12449018
申请日：2007-12-19
申请人： Shinji Gotou , Takashi Haseyama , Takao Onodera , Tatsuo Mashiko
发明人： Shinji Gotou , Takashi Haseyama , Takao Onodera , Tatsuo Mashiko
CPC分类号： F02D41/029 , F01N3/023 , F01N9/002 , F01N2260/14 , F01N2430/085 , F02D9/04 , F02D41/021 , F02D2200/501 , Y02T10/47
摘要： An exhaust emission purification system and a related method of control, wherein an exhaust throttle valve is opened if an engine load reaches at least a predetermined first judgment value during execution of forced regeneration control, and generating an alarm of failure of the exhaust throttle valve if the engine load reaches at least a second judgment value which is larger than the predetermined first judgment value.
摘要翻译： 一种废气净化系统和相关的控制方法，其中如果在执行强制再生控制期间发动机负荷达到至少预定的第一判断值，则排气节流阀打开，并且产生排气节流阀的故障报警，如果 发动机负载达到比预定的第一判断值大的至少第二判断值。
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7.发明申请公开(公告)号：US20100011750A1
公开(公告)日：2010-01-21
申请号：US12449071
申请日：2007-12-19
申请人： Takao Onodera , Akira Hirata , Takashi Haseyama , Shinji Gotou , Hitoshi Satou , Tatsuo Mashiko , Futoshi Nakano , Kouichirou Yomogida
发明人： Takao Onodera , Akira Hirata , Takashi Haseyama , Shinji Gotou , Hitoshi Satou , Tatsuo Mashiko , Futoshi Nakano , Kouichirou Yomogida
CPC分类号： F02D41/029 , B01D46/0061 , B01D46/2418 , B01D46/46 , B01D2279/30 , F01N3/023 , F01N9/002 , F01N11/002 , F01N2900/102 , F02D2200/0812 , Y02T10/47
摘要： In an exhaust emission purification method and an exhaust emission purification system where forced regeneration start timing of a DPF for purifying the PM (particulate matters) in exhaust gas is judged based on the comparison of a differential pressure across the DPF with a predetermined differential pressure threshold across the DPF, a differential pressure threshold (ΔPs) across the DPF is set by multiplying a reference differential pressure threshold (ΔPs0) across the DPF by a coefficient (α(ΔM)) which varies stepwise or continuously depending on the mileage (ΔM) of a vehicle after previous forced regeneration. Consequently, the PM can be removed by burning while the amount of PM accumulated unevenly in the DPF is still small, and excessive temperature rise in the DPF resulting from excessive accumulation of PM during forced regeneration and melting-loss of DPF due to excessive temperature rise can be prevented.
摘要翻译： 在废气净化方法和排气净化系统中，基于DPF两端的差压与规定的压差阈值的比较来判断用于净化废气中的PM（颗粒物）的DPF的强制再生开始时刻 跨越DPF，跨越DPF的差压阈值（DeltaPs）通过将DPF上的参考差压阈值（ΔP0）乘以系数（α（ΔM））来设定，该系数（α（ΔM））根据里程（DeltaM）逐步或连续地变化， 之前的强制再生。 因此，可以通过燃烧除去PM，而DPF中不均匀地累积的PM的量仍然很小，并且由于在强制再生期间PM的过度积累导致的DPF过度的温度升高和由于过高的温度升高引起的DPF的熔融损失 可以防止。
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公开(公告)号：US20090056316A1
公开(公告)日：2009-03-05
申请号：US12087467
申请日：2007-01-10
IPC分类号： F01N9/00
CPC分类号： B01D53/944 , B01D53/9495 , B01D2251/208 , B01D2258/012 , F01N3/021 , F01N3/035 , F01N9/002 , F01N11/002 , F01N13/009 , F01N13/0097 , F01N2250/02 , F01N2610/03 , F02D41/025 , F02D41/029 , F02D41/1446 , F02D2200/0804 , Y02T10/26 , Y02T10/47
摘要： In an exhaust gas purification system (1) comprising an exhaust gas purification device (12) having an oxidation catalyst device (12a) carrying an oxidation catalyst and a DPF (12b) arranged in order from an upstream side or a DPF carrying an oxidation catalyst in an exhaust passage (11) of an internal combustion engine (10), in which at regeneration of the DPF (12b), when a catalyst temperature index temperature (Tg2) indicating a temperature of the oxidation catalyst becomes equal to a predetermined determining temperature (Tc1) or above, control of raising a temperature of the DPF (12b) is conducted by supplying an unburned fuel to the upstream side of the oxidation catalyst to thereby oxidize the unburned fuel by the oxidation catalyst, wherein the predetermined determining temperature (Tc1) is changed according to an engine speed Ne of the internal combustion engine (10). By this arrangement, at the regeneration of the DPF (12b), in the regeneration control of raising the temperature of the DPF (12b) by oxidizing the unburned fuel supplied into an exhaust gas by the oxidation catalyst (12a), the unburned fuel supplied into the exhaust gas is surely oxidized and outflow of white smoke is prevented regardless of an operation state of the internal combustion engine (10).
摘要翻译： 在具有排气净化装置（12）的废气净化系统（1）中，所述废气净化装置（12）具有载持氧化催化剂的氧化催化剂装置（12a）和从上游侧依次排列的DPF（12b）或携带氧化催化剂的DPF 在DPF（12b）的再生的内燃机（10）的排气通路（11）中，当表示氧化催化剂的温度的催化剂温度指数温度（Tg2）变为等于预定的确定温度 （Tc1）以上时，通过向氧化催化剂的上游侧供给未燃烧燃料，通过氧化催化剂氧化未燃烧燃料，进行DPF（12b）的升温控制，其中，规定的测定温度（Tc1 ）根据内燃机（10）的发动机转速Ne而变化。 通过这种布置，在DPF（12b）的再生时，在通过氧化由氧化催化剂（12a）供给到废气中的未燃烧燃料来提高DPF（12b）的温度的再生控制中，供给未燃燃料 无论内燃机（10）的运转状态如何，都能够防止排气被氧化并防止白烟流出。
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9.发明申请公开(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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10.发明申请Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System 有权废气净化系统和废气净化系统的控制方法公开(公告)号：US20090007547A1
公开(公告)日：2009-01-08
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： F01N9/00
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。
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