Control method of exhaust emission control system and exhaust emission control system
    111.
    发明专利
    Control method of exhaust emission control system and exhaust emission control system 有权
    排气控制系统和排气控制系统的控制方法

    公开(公告)号:JP2007120325A

    公开(公告)日:2007-05-17

    申请号:JP2005309864

    申请日:2005-10-25

    摘要: PROBLEM TO BE SOLVED: To provide a control method of an exhaust emission control system and the exhaust emission control system capable of avoiding overheat of an engine by restraining a temperature rise in engine cooling water without stopping an air conditioner in regeneration control by a manual regeneration mode of a DPF device of an internal combustion engine. SOLUTION: In the regeneration control by the manual regeneration mode, when the first exhaust gas temperature Tg1 of exhaust gas flowing in an oxidation catalyst device 12a is higher than the predetermined determining temperature Tc1 and the temperature Tg2 of the exhaust gas flowing in the DPF device 12b is higher than the predetermined determining temperature Tc2, when the intake temperature Ta becomes higher than the expected third determining temperature Tc3, second exhaust gas temperature rise control for performing post-injection in addition to multi-injection is stopped, and is switched to third exhaust gas temperature rise control for performing the post-injection in addition to ordinary injection. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种废气排放控制系统和废气排放控制系统的控制方法,该排气排放控制系统能够通过限制发动机冷却水的温度升高来避免发动机的过热,而不会通过以下方式停止再生控制中的空调机 内燃机的DPF装置的手动再生模式。 解决方案:在通过手动再生模式的再生控制中,当在氧化催化剂装置12a中流动的废气的第一废气温度Tg1高于预定的确定温度Tc1和流入的排气的温度Tg2时 DPF装置12b高于预定的确定温度Tc2时,当进气温度Ta变得高于预期的第三判定温度Tc3时,除了多次喷射以外,进行后喷射的第二排气温度升高控制停止,并且是 切换到第三排气温度升高控制,用于除普通喷射之外进行后喷射。 版权所有(C)2007,JPO&INPIT

    Exhaust emission control device of internal combustion engine
    112.
    发明专利
    Exhaust emission control device of internal combustion engine 有权
    内燃机排气控制装置

    公开(公告)号:JP2006291823A

    公开(公告)日:2006-10-26

    申请号:JP2005112849

    申请日:2005-04-08

    发明人: TAWARA ATSUSHI

    摘要: PROBLEM TO BE SOLVED: To prevent an excessive temperature raising treatment in consideration of a relation on temperature raising treatment between a particulate matter purification treatment and a sulfuric compound releasing treatment in an exhaust emission control device of an internal combustion engine. SOLUTION: When the temperature raising treatment for purifying the deposited amount of PM PMsm is approximately more than a temperature raising treatment capable of simultaneously releasing all deposited amount of sulfate SULFsm ("no" in S108), the temperature raising treatment for purifying the deposited amount of PM PMsm is performed for releasing sulfate to completely purify PM and completely release sulfate. Since a relation on the temperature raising treatment between the regeneration of PM and the release of sulfate is taken into account, the same state of the actual deposited amount of sulfate and the deposited amount of sulfate SULFsm expected for the sulfate release treatment can be maintained. Accordingly, the excessive temperature raising treatment in the sulfate release treatment can be prevented from occurring. Thus, the added fuel amount can be saved and a fuel economy can be improved. COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:考虑到内燃机的排气排放控制装置中的颗粒物净化处理和硫酸盐化合物释放处理之间的升温处理的关系,防止过度的升温处理。 解决方案:当用于净化PM PMsm的沉积量的升温处理大约能够同时释放所有沉积量的硫酸盐SULFsm的升温处理(S108中的“否”)时,用于净化的升温处理 执行PM PMsm的沉积量以释放硫酸盐以完全净化PM并完全释放硫酸盐。 考虑到PM的再生和硫酸盐释放之间的升温处理的关系,可以保持硫酸盐的实际沉积量和硫酸盐释放处理所期望的硫酸盐SULFsm的沉积量的相同状态。 因此,可以防止发生硫酸盐释放处理中的过度升温处理。 因此,可以节省添加的燃料量并提高燃料消耗。 版权所有(C)2007,JPO&INPIT

    Exhaust emission control device for internal combustion engine
    113.
    发明专利
    Exhaust emission control device for internal combustion engine 有权
    用于内燃机的排气排放控制装置

    公开(公告)号:JP2006249961A

    公开(公告)日:2006-09-21

    申请号:JP2005065196

    申请日:2005-03-09

    发明人: OGISO MASATO

    摘要: PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of changing regeneration control for a plurality of catalysts depending on whether combustion mode is changed before or after regeneration control of catalyst or not to prevent worsening of drivability. SOLUTION: This exhaust emission control device is provided with a plurality of exhaust gas purifying means provided in exhaust passages connected with each of a plurality of groups of cylinders of the internal combustion engine to purify exhaust gas, a regeneration determining means for determining whether the exhaust gas purifying means are in a condition for regeneration or not, and a regeneration control means for controlling regeneration for regenerating the exhaust gas purifying means when it is determined by the regeneration determining means that the exhaust gas purifying means must be regenerated. The regeneration control means controls regeneration for the plurality of exhaust gas purifying means when combustion mode of the internal combustion engine is changed before or after regeneration control simultaneously and controls regeneration for each of the plurality of exhaust gas purifying means when combustion mode is not changed before or after regeneration control independently. Consequently, regeneration of the exhaust gas purifying means is properly performed to prevent worsening of fuel economy and drivability of the internal combustion engine even if the regeneration control is performed. COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译: 要解决的问题:提供一种能够根据在催化剂的再生控制之前或之后是否改变燃烧模式而改变多种催化剂的再生控制的废气排放控制装置,或者不防止驾驶性能的恶化。 解决方案:该废气排放控制装置设置有多个排气净化装置,设置在与内燃机的多组气缸中的每一个相连接以净化废气的排气通道中,再生确定装置用于确定 废气净化装置是否处于再生的状态,以及再生控制装置,当由再生判定装置确定废气净化装置必须再生时,再生控制装置用于再生废气净化装置。 再生控制装置在再生控制同时改变内燃机的燃烧模式或者再生控制之前改变多个排气净化单元的再生时,控制多个排气净化单元中的燃烧模式不变化时的再生, 或独立再生后控制。 因此,即使进行再生控制,也能适当地进行排气净化装置的再生,以防止燃料经济性和内燃机的驾驶性能恶化。 版权所有(C)2006,JPO&NCIPI

    Fuel injection device
    117.
    发明专利
    Fuel injection device 有权
    燃油喷射装置

    公开(公告)号:JP2005171934A

    公开(公告)日:2005-06-30

    申请号:JP2003415431

    申请日:2003-12-12

    发明人: NISHIMAKI HIROAKI

    摘要: PROBLEM TO BE SOLVED: To provide a fuel injection device capable of suppressing heat generation of an injector drive circuit during time period for performing poet injection operation supplying exhaust gas of an engine with unburned gas.
    SOLUTION: ECU intermittently performs post injection stop pattern in which post injection command signal is not output after regular injection command signal when post injection operation is performed. Namely, the post injection stop pattern is performed with overlapping cylinders (#1, #4 cylinder) right before non-overlap cylinders (#2, #5 cylinder) in an order of regular injection in the non-overlap cylinders (#2, #5 cylinder) and the overlap cylinders (#1, #3, #4, #6 cylinder). Consequently, heat generation of the injector drive circuit can be suppressed. Simultaneously, injection pressure of an injector to each cylinder at a time of regular injection can be stabilized.
    COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 解决问题的方案:提供一种燃料喷射装置,能够抑制喷射器驱动电路在发动机的未燃烧气体的废气中进行诗人注射操作的时间段内的发热。 解决方案:执行后喷射操作时,ECU间歇地执行后喷射停止模式,其中在常规喷射命令信号之后不输出后喷射命令信号。 即,在非重叠滚筒(#2,#5圆筒)中,以非重叠滚筒(#2,#5圆筒)的正常喷射顺序,以重叠滚筒(#1,#4圆筒) #5气缸)和重叠气缸(#1,#3,#4,#6气缸)。 因此,可以抑制喷射器驱动电路的发热。 同时,可以使喷射器在常规喷射时对各气缸的喷射压力稳定。 版权所有(C)2005,JPO&NCIPI

    Engine control device
    119.
    发明专利
    Engine control device 审中-公开
    发动机控制装置

    公开(公告)号:JP2005048749A

    公开(公告)日:2005-02-24

    申请号:JP2003284325

    申请日:2003-07-31

    发明人: KITAHARA YASUHISA

    摘要: PROBLEM TO BE SOLVED: To regenerate an NOx trap catalyst or the like by increasing exhaust temperature while restricting generation of smoke, and lowering an exhaust air-fuel ratio. SOLUTION: Prior to main combustion to generate engine torque, preliminary combustion to make prescribed heat generation is conducted. The preliminary combustion is conducted around an upper dead center by first fuel injection, and the main combustion is conducted later than normally by second fuel injection, and after completion of the preliminary combustion. An ignition lag period Δtij of the preliminary combustion is detected, and the longer it is, the larger injection quantity is set for the first fuel injection. COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 要解决的问题:通过在限制烟雾的产生的同时增加排气温度并且降低排气空燃比来再生NOx捕集催化剂等。

    解决方案:在主燃烧产生发动机扭矩之前,进行预定的燃烧以进行规定的发热。 通过第一次燃料喷射,在上死点进行预燃燃烧,通过第二次燃料喷射,主燃烧晚于正常燃烧,在完成预燃后进行。 检测到预燃燃烧的点火滞后期Δtij,并且越长,对于第一次燃料喷射设定较大的喷射量。 版权所有(C)2005,JPO&NCIPI

    Exhaust circulation control device for internal combustion engine
    120.
    发明专利
    Exhaust circulation control device for internal combustion engine 有权
    用于内燃机的排气循环控制装置

    公开(公告)号:JP2005048716A

    公开(公告)日:2005-02-24

    申请号:JP2003283288

    申请日:2003-07-31

    发明人: MIURA MANABU

    摘要: PROBLEM TO BE SOLVED: To stabilize engine operation performance by restricting fluctuation of the EGR ratio in changing the excess air ratio. SOLUTION: This device is provided with an exhaust circulation control valve 10 to circulate part of exhaust from an exhaust system of an engine to an intake system, and feedback-control circulation quantity, an intake restricting valve 8 disposed upstream of the intake system connected to an exhaust circulation passage 9, an excess air ratio control means to change suction air quantity through the intake restricting valve 8 in accordance with an excess air ratio changing demand, and a means to limit the excess air ratio in changing it by temporarily prohibiting feedback control to the exhaust circulation quantity of the exhaust circulation control valve or temporarily reducing feedback control gain. COPYRIGHT: (C)2005,JPO&NCIPI

    摘要翻译: 要解决的问题:通过在改变过量空气比来限制EGR率的波动来稳定发动机运转性能。 解决方案:该装置设置有排气循环控制阀10,用于将来自发动机的排气系统的排气的一部分循环到进气系统和反馈控制循环量,设置在进气口上游的进气限制阀8 连接到排气循环通道9的系统,过量空气比控制装置,用于根据过量空气比变化需求改变通过进气限制阀8的吸入空气量;以及用于限制过量空气比暂时改变的装置 禁止对排气循环控制阀的排气循环量进行反馈控制,或者暂时减少反馈控制增益。 版权所有(C)2005,JPO&NCIPI