Control method of exhaust gas purification system and exhaust gas purification system
    11.
    发明授权
    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:US08001774B2

    公开(公告)日:2011-08-23

    申请号:US12223389

    申请日:2007-01-10

    IPC分类号: F01N3/00 F01N1/00

    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。

    Control method for an exhaust gas purification system and an exhaust gas purification system
    12.
    发明授权
    Control method for an exhaust gas purification system and an 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:US07043903B2

    公开(公告)日:2006-05-16

    申请号:US11082826

    申请日:2005-03-18

    IPC分类号: F01N3/00

    摘要: An exhaust gas purification system (1) including a continuous regeneration-type DPF (13) and a DPF control (30c) is composed to perform an exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) exceeds a first temperature rising judgment collecting quantity (ΔP01) lower than a predetermined collecting quantity (ΔP1) and, thereafter, to stop the exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) becomes lower than a predetermined second temperature rising judgment collecting quantity (ΔP02) lower than the predetermined first temperature rising judgment collecting quantity (ΔP01).Thereby, frequency of the manual regeneration switch operation can be reduced remarkably, and the operability for a driver can be improved, in the exhaust gas purification system (1) prompting the driver to stop the vehicle and perform the forced regeneration by the manual regeneration switch, in the case of detecting that the detected collecting quantity (ΔPm) is higher than the predetermined judgment collecting quantity (ΔP1), concerning the regeneration of the continuous regeneration-type diesel particulate filter device (13).

    摘要翻译: 构成包括连续再生型DPF(13)和DPF控制装置(30c)的排气净化系统(1),在收集量(ΔP<1)的情况下,通过多次喷射进行排气升温控制, 超过比预定收集量(ΔP1)低的第一升温判定收集量(DeltaP 01),然后,在通过多次喷射来停止排气升温控制的情况下, 收集量(DeltaPm)变得低于低于预定的第一升温判定收集量(ΔP01)的预定的第二升温判断收集量(DeltaP 02)。 由此,能够显着降低手动再生开关动作的频率,能够提高驾驶员的操作性,在排气净化系统(1)中提示驾驶员停止车辆并通过手动再生开关进行强制再生 在检测到所检测到的收集量(DeltaP&lt; m&gt;)高于预定的判断收集量(DeltaP 1)的情况下,关于连续再生型柴油微粒过滤装置(13)的再生 )。

    Control method for an exhaust gas purification system and an exhaust gas purification system
    13.
    发明申请
    Control method for an exhaust gas purification system and an 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:US20050217253A1

    公开(公告)日:2005-10-06

    申请号:US11082826

    申请日:2005-03-18

    摘要: An exhaust gas purification system (1) comprising a continuous regeneration-type DPF (13) and a DPF control means (30C) is composed to perform an exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) exceeds a predetermined first temperature rising judgment collecting quantity (ΔP01) lower than a predetermined collecting quantity (ΔP1) and, thereafter, to stop the exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) becomes lower than a predetermined second temperature rising judgment collecting quantity (ΔP02) lower than the predetermined first temperature rising judgment collecting quantity (ΔP01). Thereby, frequency of the manual regeneration switch operation can be reduced remarkably, and the operability for a driver can be improved, in the exhaust gas purification system (1) prompting the driver to stop the vehicle and perform the forced regeneration by the manual regeneration switch, in the case of detecting that the detected collecting quantity (ΔPm) is higher than the predetermined judgment collecting quantity (ΔP1), concerning the regeneration of the continuous regeneration-type diesel particulate filter device (13).

    摘要翻译: 包括连续再生型DPF(13)和DPF控制装置(30C)的废气净化系统(1)构成为在收集量(ΔPm)的情况下通过多次喷射进行排气升温控制 )超过低于预定收集量(ΔP1)的预定的第一升温判定收集量(DeltaP 01),然后在收集量(ΔPm)的情况下,通过多次喷射来停止排气升温控制 低于比预定的第一升温判定收集量(ΔP01)低的预定的第二升温判定收集量(DeltaP 02)。 由此,能够显着降低手动再生开关动作的频率,能够提高驾驶员的操作性,在排气净化系统(1)中提示驾驶员停止车辆并通过手动再生开关进行强制再生 在检测到连续再生型柴油微粒过滤装置(13)的再生时检测到检测出的收集量(DeltaPm)高于预定判定收集量(DeltaP 1)的情况。

    RECOVERY CONTROL SYSTEM
    14.
    发明申请
    RECOVERY CONTROL SYSTEM 有权
    恢复控制系统

    公开(公告)号:US20130186073A1

    公开(公告)日:2013-07-25

    申请号:US13699524

    申请日:2011-05-16

    IPC分类号: F01N11/00

    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。

    EXHAUST PIPE
    15.
    发明申请
    EXHAUST PIPE 有权
    排气管

    公开(公告)号:US20130058838A1

    公开(公告)日:2013-03-07

    申请号:US13698187

    申请日:2011-05-16

    IPC分类号: F01N3/28

    摘要: The present invention relates to an exhaust pipe, which prevents a reducing agent from penetrating a support member for an exhaust purification catalyst, and effectively prevents the exhaust purification catalyst from being damaged due to the expansion of the support member. An exhaust gas purification catalyst 30 for reducing and purifying nitrogenous compounds contained in exhaust gas discharged from an internal combustion engine, using a reducing agent, is provided on the inside of the exhaust pipe 10 via support member 20. A baffle portion 15 for preventing the reducing agent from penetrating the exhaust gas purification catalyst 30 is provided on the portion of the internal surface of the exhaust pipe 10, which is upstream side of the exhaust gas purification catalyst 30.

    摘要翻译: 排气管技术领域本发明涉及一种排气管,其防止还原剂渗入排气净化催化剂的支撑构件,并且有效地防止排气净化催化剂由于支撑构件的膨胀而损坏。 通过支撑部件20,在排气管10的内部设置有用于还原和净化从内燃机排出的排气中含氮化合物的排气净化催化剂30,该排气净化催化剂30使用还原剂。 排气净化催化剂30的上游侧的排气管10的内表面的部分设有还原剂渗透排气净化催化剂30。

    Exhaust gas purification method and exhaust gas purification system
    17.
    发明授权
    Exhaust gas purification method and exhaust gas purification system 有权
    废气净化方法和废气净化系统

    公开(公告)号:US07934372B2

    公开(公告)日:2011-05-03

    申请号:US12086997

    申请日:2007-01-10

    IPC分类号: F01N3/025

    摘要: In an exhaust gas purification system (1) for conducting control of raising temperature of a DPF (12b) by supplying an unburned fuel to an upstream side of an oxidation catalyst to oxidize it, a minimum value (Qumin) of a first upper limit value (Qu1) acquired by subtracting a fuel injection amount (Qe) for in-cylinder combustion from a first combustible fuel amount (Qa1) limited by an air/fuel ratio, a second upper limit value (Qu2) acquired by subtracting the fuel injection amount (Qe) for in-cylinder combustion from a second combustible fuel amount (Qa2) limited by an atmospheric pressure, and a third upper limit value (Qu3), which is a third combustible fuel amount (Qa3) which can be oxidized by the oxidation catalyst limited by a catalyst temperature index temperature (Tg1, Tg2) and an engine speed (Ne) is set as an upper limit value (Qu) for the unburned fuel supply amount (Qp). By this arrangement, at forced regeneration of the DPF (12b), the unburned fuel supplied into an exhaust gas is surely oxidized and generation of white smoke is prevented regardless of an operation state of an internal combustion engine (10).

    摘要翻译: 在排气净化系统(1)中,通过向氧化催化剂的上游侧供给未燃燃料进行氧化来进行DPF(12b)的升温控制,将第一上限值(Qumin)的最小值(Qumin) (Qu1)从通过空燃比限制的第一可燃燃料量(Qa1)减去用于缸内燃烧的燃料喷射量(Qe)而获得的第二上限值(Qu2),通过减去燃料喷射量 (Qa),第三可燃燃料量(Qa3)的第三上限值(Qu3),该第三可燃燃料量(Qa3)可以被氧化而被氧化 由催化剂温度指数温度(Tg1,Tg2)和发动机转速(Ne)限制的催化剂被设定为未燃燃料供给量(Qp)的上限值(Qu)。 通过这种布置,在DPF(12b)的强制再生时,不管内燃机(10)的运行状态如何,被供给到排气中的未燃燃料被确实地氧化,并且防止产生白烟。

    Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System
    18.
    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:US20090082938A1

    公开(公告)日:2009-03-26

    申请号:US11922846

    申请日:2006-06-20

    IPC分类号: F02D41/00 F01N9/00

    摘要: An exhaust gas purification system has an exhaust gas purification device (12) for purifying components in exhaust gas from an internal combustion engine (10) such as a diesel engine. In order to recover the purification ability of the exhaust gas purification device (12), and in order to prevent oil dilution occurring when post injection is conducted as part of an in-cylinder fuel injection control during an exhaust gas temperature raising control that raises the temperature of exhaust gas, the system performs the following. In a regenerative control for recovering purification ability of the exhaust gas purification device (12), injection quantities (Qp) of post injections are calculated based on previously set map data (Mp), accumulated to calculate a post injection accumulated injection amount (ΣQp), and, when the accumulated injection amount (ΣQp) exceeds a predetermined determination value (Cp), the post injection is stopped to cease the regenerative control.

    摘要翻译: 排气净化系统具有净化来自柴油发动机等内燃机(10)的废气中的成分的废气净化装置(12)。 为了回收废气净化装置(12)的净化能力,为了防止在进行后喷射时发生的油稀释,作为在排气升温控制期间的缸内燃料喷射控制的一部分, 排气温度,系统执行以下操作。 在用于回收废气净化装置(12)的净化能力的再生控制中,基于预先设定的映射数据(Mp)计算后喷射量的喷射量(Qp),累计计算出后喷射累积喷射量(SigmaQp) ,并且当累积喷射量(SigmaQp)超过预定的确定值(Cp)时,停止后喷射以停止再生控制。

    Control method for an exhaust gas purification system and an exhaust gas purification system
    19.
    发明授权
    Control method for an exhaust gas purification system and an 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:US07104050B2

    公开(公告)日:2006-09-12

    申请号:US11078493

    申请日:2005-03-14

    IPC分类号: F01N3/00

    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。