Control method of exhaust gas purification system and exhaust gas purification system
    1.
    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。

    Method for controlling exhaust gas purification system and exhaust gas purification system
    2.
    发明授权
    Method for controlling exhaust gas purification system and exhaust gas purification system 有权
    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

    IPC分类号: F01N3/00 F01N3/02

    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。

    Method for Controlling Exhaust Gas Purification System and Exhaust Gas Purification System
    3.
    发明申请
    Method for Controlling Exhaust Gas Purification System and Exhaust Gas Purification System 有权
    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

    IPC分类号: F01N9/00

    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。

    Control Method of Exhaust Gas Purification System and Exhaust Gas Purification System
    4.
    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

    IPC分类号: F01N9/00

    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。

    Fuel injection control device
    5.
    发明授权
    Fuel injection control device 失效
    燃油喷射控制装置

    公开(公告)号:US07729845B2

    公开(公告)日:2010-06-01

    申请号:US11995665

    申请日:2006-06-22

    IPC分类号: G06F19/00 F02M51/00

    摘要: A fuel injection control device that prevents a misfire is provided. The fuel injection control device comprises: target injection amount determination means 3 for determining a target injection amount of each fuel injection, so that the amount of fuel to be supplied to a cylinder in one combustion cycle is supplied in a plurality of fuel injections; and fuel injection correction amount determination means 4 for determining a fuel correction amount of one combustion cycle, wherein the fuel injection correction amount determination means 4 distributes the correction amount among each fuel injection in accordance with the ratio of a target injection amount of each fuel injection in the cylinder.

    摘要翻译: 提供了防止失火的燃料喷射控制装置。 燃料喷射控制装置包括:目标喷射量确定装置3,用于确定每个燃料喷射的目标喷射量,使得在多个燃料喷射中供应供应到一个燃烧循环中的气缸的燃料量; 以及用于确定一个燃烧循环的燃料校正量的燃料喷射校正量确定装置4,其中燃料喷射校正量确定装置4根据每个燃料喷射的目标喷射量的比率分配每个燃料喷射中的校正量 在气缸中。

    FUEL INJECTION CONTROL DEVICE
    6.
    发明申请
    FUEL INJECTION CONTROL DEVICE 失效
    燃油喷射控制装置

    公开(公告)号:US20090150045A1

    公开(公告)日:2009-06-11

    申请号:US11995665

    申请日:2006-06-22

    IPC分类号: F02D41/30

    摘要: A fuel injection control device that prevents a misfire is provided. The fuel injection control device comprises: target injection amount determination means 3 for determining a target injection amount of each fuel injection, so that the amount of fuel to be supplied to a cylinder in one combustion cycle is supplied in a plurality of fuel injections; and fuel injection correction amount determination means 4 for determining a fuel correction amount of one combustion cycle, wherein the fuel injection correction amount determination means 4 distributes the correction amount among each fuel injection in accordance with the ratio of a target injection amount of each fuel injection in the cylinder.

    摘要翻译: 提供了防止失火的燃料喷射控制装置。 燃料喷射控制装置包括:目标喷射量确定装置3,用于确定每个燃料喷射的目标喷射量,使得在多个燃料喷射中供应供应到一个燃烧循环中的气缸的燃料量; 以及用于确定一个燃烧循环的燃料校正量的燃料喷射校正量确定装置4,其中燃料喷射校正量确定装置4根据每个燃料喷射的目标喷射量的比率分配每个燃料喷射中的校正量 在气缸中。

    Control method for an exhaust gas purification system and an exhaust gas purification system
    8.
    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。

    EXHAUST EMISSION PURIFICATION METHOD AND EXHAUST EMISSION PURIFICATION SYSTEM
    10.
    发明申请
    EXHAUST EMISSION PURIFICATION METHOD AND EXHAUST EMISSION PURIFICATION SYSTEM 有权
    排气净化方法和排气净化系统

    公开(公告)号:US20100089032A1

    公开(公告)日:2010-04-15

    申请号:US12449847

    申请日:2008-01-15

    IPC分类号: F01N3/023 F01N3/20

    摘要: In case of emergency regeneration, i.e. any one of forced regeneration after a judgment is made that purification is insufficient in purification judgment after ending forced regeneration, forced regeneration after time has expired before completing of forced regeneration, or forced regeneration when the pressure difference across a DPF exceeds a predetermined first judging pressure difference under a state where traveling distance of a vehicle is shorter than a predetermined distance for judgment an alarm for urging manual regeneration is issued, and wherein when manual regeneration is designated thereafter manual regeneration is performed and when predetermined conditions are satisfied without the reception of a designation of manual regeneration, automatic regeneration is performed. In forced regeneration of the DPF for purifying PM in exhaust gas, forced regeneration is performed surely even if manual regeneration is not selected at the time of emergency regeneration, and convenience is enhanced by reducing burden on a driver.

    摘要翻译: 在紧急再生的情况下,即在判断为强制再生结束后的净化判定中的净化不充分的强制再生中,强制再生结束后的时间到期后的强制再生, DPF在车辆的行驶距离短于预定距离的状态下超过预定的第一判断压力差,以便发出用于促进手动再生的警报,并且其中当手动再生被指定时,手动再生被执行并且当预定条件 在没有接收到手动再生的指定的情况下满足,则执行自动再生。 在用于净化废气中的PM的DPF的强制再生中,即使在紧急再生时未选择手动再生,也能够可靠地进行强制再生,并且通过减轻驾驶员的负担来提高便利性。