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    Exhaust emission control device of diesel engine
    21.
    发明专利
    Exhaust emission control device of diesel engine 有权
    柴油发动机排气排放控制装置

    公开(公告)号：JP2012087705A

    公开(公告)日：2012-05-10

    申请号：JP2010235966

    申请日：2010-10-20

    申请人： Mitsubishi Heavy Ind Ltd ,  三菱重工業株式会社

    发明人： IGAWA YOSHIKATSU ,  ENDO HIROYUKI ,  IDE KAZUNARI ,  TAKAYANAGI HISASHI

    IPC分类号： F01N3/029 ,  B01D46/42 ,  F01N3/02 ,  F01N3/023 ,  F01N3/025 ,  F01N3/035 ,  F02D41/04

    CPC分类号： B01D53/9495 ,  F01N3/106 ,  F01N2900/1602 ,  F02D41/0235 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/029 ,  F02D41/1401 ,  F02D41/1446 ,  F02D41/405 ,  F02D2041/1409 ,  F02D2041/141 ,  F02D2200/0802 ,  F02D2200/101 ,  Y02T10/26 ,  Y02T10/44

    摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of a diesel engine, which can shorten regeneration time while raising a DPF (diesel particulate filter) temperature so as to reduce an oil dilution amount in forced regeneration of the DPF and can suppress a risk of excessive temperature rise of the DPF.SOLUTION: A DPF target temperature setting means has a temperature rise rate setting unit setting in such a manner that the change rate of temperature rise decreases with temperature rise or with the lapse of time after starting late-post injection, up to a target set temperature at which PM (particulate matter) combusts after starting the late-post injection. The change rate of stepwise temperature rise in the temperature rise rate setting unit is configured by two stages of a first stage change rate A and a second stage change rate B that is smaller than the first stage change rate A. The target temperature of the DPF temperature is calculated by using the temperature rise rate of the temperature rise rate setting unit.

    摘要翻译： 要解决的问题：提供一种柴油发动机的废气排放控制装置，其可以在提高DPF（柴油机微粒过滤器）温度的同时缩短再生时间，以减少DPF的强制再生中的油稀释量， 可以抑制DPF过度升温的风险。 解决方案：DPF目标温度设定装置具有温度上升速率设定单元设定，使得温度变化率随着温度升高或开始深后喷射后的时间流逝而降低，直到 PM（颗粒物）在后喷射后开始燃烧的目标设定温度。 升温速率设定单元中的逐步升温的变化率由比第一阶段变化率A小的第一阶段变化率A和第二阶段变化率B的两个阶段构成。DPF的目标温度 通过使用升温速率设定单元的升温速度来计算温度。 版权所有（C）2012，JPO＆INPIT

    Exhaust emission control system
    23.
    发明专利
    Exhaust emission control system 有权
    排气排放控制系统

    公开(公告)号：JP2011256848A

    公开(公告)日：2011-12-22

    申请号：JP2010134516

    申请日：2010-06-11

    申请人： Isuzu Motors Ltd ,  いすゞ自動車株式会社

    发明人： IKEDA TAKUJI ,  OCHI NAOFUMI ,  ISHIKAWA HIROYUKI

    IPC分类号： F01N3/029 ,  F01N3/02 ,  F01N3/023 ,  F01N3/025 ,  F01N3/035 ,  F01N3/24 ,  F01N3/36 ,  F02D9/06

    CPC分类号： B01D46/0063 ,  F01N3/0235 ,  F01N3/0253 ,  F01N3/035 ,  F01N9/002 ,  F01N13/0097 ,  F01N2240/36 ,  F01N2610/146 ,  F01N2900/10 ,  F01N2900/1404 ,  F02B29/0406 ,  F02D9/06 ,  F02D41/025 ,  F02D41/029 ,  F02D41/107 ,  F02D41/1446 ,  F02D41/1482 ,  F02D41/405 ,  F02D2041/1409 ,  F02M26/23 ,  Y02T10/47

    摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control system capable of accurately controlling exhaust-pipe injection with PID control during automatic regeneration while driving, even with repeated acceleration/deceleration and even if an exhaust brake valve is closed.SOLUTION: A DPD 25 is attached to an exhaust pipe 20 of a diesel engine 10, and when the DPD 25 undergoes automatic regeneration, the exhaust-gas temperature is detected and the deviation between the detected exhaust-gas temperature and a regeneration target temperature is obtained. When using the deviation to perform PID control on the exhaust-pipe injection amount, exhaust-pipe injection is stopped if an exhaust brake valve 24 is closed during automatic regeneration while driving, computation of the integral control term of the PID control is continued while the exhaust brake valve 24 remains closed, and the continuously-computed integral control term is used as the initial manipulation amount when the exhaust brake valve 24 is opened.

    摘要翻译： 要解决的问题：提供一种排气排放控制系统，即使在重复的加速/减速以及即使排气制动阀关闭的情况下，也能够在驾驶期间的自动再生期间，通过PID控制来精确地控制排气管喷射。 解决方案：DPD25安装在柴油发动机10的排气管20上，当DPD25进行自动再生时，检测排气温度，检测到废气温度与再生之间的偏差 获得目标温度。 当使用偏差对排气管喷射量进行PID控制时，如果在驱动期间的自动再生期间排气制动阀24关闭，则排气管喷射停止，继续计算PID控制的积分控制项，同时 排气制动阀24保持关闭，并且当排气制动阀24打开时，连续计算的积分控制项用作初始操作量。 版权所有（C）2012，JPO＆INPIT

    Exhaust emission control system
    24.
    发明专利
    Exhaust emission control system 有权
    排气排放控制系统

    公开(公告)号：JP2011247143A

    公开(公告)日：2011-12-08

    申请号：JP2010119721

    申请日：2010-05-25

    申请人： Isuzu Motors Ltd ,  いすゞ自動車株式会社

    发明人： IKEDA TAKUJI ,  FURUKAWA TAKAYUKI ,  KANENOBU KEIZO

    IPC分类号： F02D41/14 ,  F01N3/023 ,  F01N3/035

    CPC分类号： F02D41/029 ,  F01N3/0235 ,  F01N3/035 ,  F01N3/106 ,  F02D9/06 ,  F02D41/024 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/107 ,  F02D41/12 ,  F02D41/1401 ,  F02D41/1446 ,  F02D41/1482 ,  F02D41/1488 ,  F02D41/405 ,  F02D2041/1409 ,  F02D2200/0812 ,  F02D2250/11 ,  F02D2700/04 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/44

    摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control system for performing PID control to accurately control post injection even when acceleration and deceleration are repeated or an exhaust brake valve is closed during travelling automatic regeneration.SOLUTION: A DPD 25 is connected to an exhaust pipe 20 of a diesel engine 10. The temperature of exhaust gas in automatic regeneration of the DPD 25 is detected to find a deviation between the detected temperature of the exhaust gas and a regeneration target temperature. In PID control of the amount of post injection on the basis of the deviation, post injection is stopped when the exhaust brake valve 24 is closed during the travelling automatic regeneration, the PID control is performed to continuously operate an integral control term during a time when the exhaust brake valve is closed, and the continuously operated integral control term is set as an initial operation quantity when the exhaust brake valve 24 is opened.

    摘要翻译： 要解决的问题：为了提供即使在行驶自动再生期间重复加速和减速或排气制动阀关闭时也执行PID控制以精确地控制后喷射的废气排放控制系统。 解决方案：DPD25连接到柴油发动机10的排气管20.检测DPD 25的自动再生中的废气温度，以发现检测到的废气温度与再生之间的偏差 目标温度。 在基于偏差的后喷射量的PID控制中，当在行驶自动再生期间排气制动阀24关闭时，后喷射停止，执行PID控制以在一段时间内连续运行积分控制项 关闭排气制动阀，将连续运转的积分控制项设定为排气制动阀24打开时的初始运转量。 版权所有（C）2012，JPO＆INPIT

    Control device for diesel engine
    25.
    发明专利
    Control device for diesel engine 有权
    柴油发动机控制装置

    公开(公告)号：JP2011112017A

    公开(公告)日：2011-06-09

    申请号：JP2009271169

    申请日：2009-11-30

    申请人： Denso Corp ,  株式会社デンソー

    发明人： KAJINO TAKENOBU

    IPC分类号： F02D41/06 ,  F02D41/22 ,  F02D41/38 ,  F02D45/00 ,  F02M59/36

    CPC分类号： F02D41/3845 ,  F02D31/008 ,  F02D41/0085 ,  F02D41/064 ,  F02D41/08 ,  F02D41/1498 ,  F02D41/401 ,  F02D2041/1409 ,  F02D2200/021 ,  F02D2200/0602 ,  F02D2200/602 ,  Y02T10/44

    摘要： PROBLEM TO BE SOLVED: To provide a control device for a diesel engine which reduces rough idle and white smoke occurrence. SOLUTION: The control device 1 for the diesel engine includes: an engine speed sensor 21 for detecting a fluctuation range of the engine speed of the diesel engine 2 to which the fuel accumulated in a common rail 6 is supplied; and a semi-misfire determination step (step 40) for determining whether or not individual cylinders 11 of the diesel engine 2 into which the fuel is injected are in a semi-misfire state. When after the diesel engine 2 is started, the fluctuation range of the engine speed found by using the engine speed sensor 21 exceeds a predetermined fluctuation range threshold value KR, and the individual cylinders 11 of the diesel engine 2 are determined as the semi-misfire state by the semi-misfire determination step (step 40), the control device 1 executes processing for increasing the pressure of the common rail 6. COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译： 要解决的问题：提供一种减少粗糙的空闲和白烟发生的柴油发动机的控制装置。 解决方案：用于柴油发动机的控制装置1包括：发动机速度传感器21，用于检测供应有共轨6中燃料的柴油发动机2的发动机转速的波动范围; 以及用于确定燃料喷射到其中的柴油发动机2的单个气缸11是否处于半失火状态的半失火确定步骤（步骤40）。 在柴油发动机2起动之后，通过使用发动机转速传感器21而发现的发动机转速的波动范围超过规定的变动范围阈值KR，将柴油发动机2的各气缸11确定为半失火 通过半失火判断步骤（步骤40），控制装置1执行用于增加共轨6的压力的处理。版权所有（C）2011，JPO＆INPIT

    Electric current supply control apparatus for glow plug and glow plug
    28.
    发明专利
    Electric current supply control apparatus for glow plug and glow plug 有权
    电流插头和玻璃插头的电流供应控制装置

    公开(公告)号：JP2010265816A

    公开(公告)日：2010-11-25

    申请号：JP2009117811

    申请日：2009-05-14

    申请人： Ngk Spark Plug Co Ltd ,  日本特殊陶業株式会社

    发明人： OKINAKA MANABU ,  NAKAMURA TOSHIYUKI

    IPC分类号： F02P19/02 ,  F02D21/08 ,  F02D43/00 ,  F02D45/00 ,  F02M25/07

    CPC分类号： F02P19/025 ,  F02D41/005 ,  F02D41/064 ,  F02D41/10 ,  F02D2041/1409 ,  F02P19/026 ,  Y02T10/47

    摘要： PROBLEM TO BE SOLVED: To provide an electric current supply control apparatus for a glow plug capable of increasing a recirculating amount of exhaust gas, by supplying an electric current to the glow plug when a state of a load applied to an engine is a transition state, and to provide the glow plug. SOLUTION: In the transition state of increasing the load applied to the engine such as at the time of acceleration (S14: YES), an instruction signal of instructing an increase in an EGR amount is transmitted to an ECU (S18). Electric current supply to a heating resistor of the glow plug is performed by resistance value PI control (S20), and the temperature of the heating resistor is maintained in a stable state at the target temperature, and combustion stability is enhanced. Thus, the EGR amount is increased without reducing engine output even at the time of acceleration, and generation of NOx is effectively suppressed. COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译： 要解决的问题：提供一种用于电热塞的电流供应控制装置，其能够通过在施加到发动机的负载状态为电动塞提供电流到电热塞时提供排气的再循环量 过渡状态，并提供电热塞。 解决方案：在加速时加载到发动机的负载的过渡状态（S14：是），向ECU发送指示增加EGR量的指令信号（S18）。 通过电阻值PI控制（S20）对电热塞的发热电阻器的电流供给，并且将加热电阻器的温度保持在目标温度下的稳定状态，并且提高燃烧稳定性。 因此，即使在加速时，EGR量也不降低发动机输出而增加，并且有效地抑制了NOx的产生。 版权所有（C）2011，JPO＆INPIT