利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

77 条记录 (耗时 0.019 秒)

    Exhaust gas control apparatus for internal combustion engine and control method thereof
    62.
    发明公开
    Exhaust gas control apparatus for internal combustion engine and control method thereof 有权
    Abgassteuerungsvorrichtung und -methodefüreine Brennkraftmaschine

    公开(公告)号：EP1536120A2

    公开(公告)日：2005-06-01

    申请号：EP04028130.5

    申请日：2004-11-26

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Tomita, Tetsuji ,  Sugiyama, Tatsumasa ,  Tahara, Jun

    IPC分类号： F02D41/02 ,  F02D35/00

    CPC分类号： F01N9/002 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F02B29/0406 ,  F02B37/00 ,  F02D35/0023 ,  F02D41/029 ,  F02D2041/0017 ,  F02D2200/0802 ,  F02D2200/0812 ,  F02M26/05 ,  F02M26/23 ,  F02M26/35 ,  Y02T10/47

    摘要： An exhaust gas control apparatus includes a second catalyst converter (35) having an exhaust gas control function in an exhaust passage (14) in an engine (10). In the exhaust gas control apparatus, the second catalyst converter (35) is recovered by burning and removing particulate matter accumulated in the second catalyst converter (35). In the exhaust gas control apparatus, when the engine (10) (vehicle) is decelerated while an amount of the accumulated particulate matter is large during recovery of the catalyst, an increase in an amount of air taken in a combustion chamber (13) is suppressed by a large amount, as compared to when the engine (10) (vehicle) is decelerated while the amount of the accumulated particulate matter is small.

    摘要翻译： 排气控制装置包括在发动机（10）的排气通路（14）中具有排气控制功能的第二催化剂转化器（35）。 在排气控制装置中，第二催化剂转化器（35）通过燃烧除去积聚在第二催化剂转化器（35）中的颗粒物质来回收。 在废气控制装置中，当在催化剂回收期间发动机（10）（车辆）减速而累积的颗粒物质的量大时，在燃烧室（13）中吸入的空气量的增加是 与发动机（10）（车辆）在累积的颗粒物量少的同时减速时相比被抑制大量。

    Fuel pressure control device and method for high pressure fuel injection system
    63.
    发明公开
    Fuel pressure control device and method for high pressure fuel injection system 有权
    Krafstoffdrucksteuervorrichtung und Verfahrenfürein Hochdruckkraftstoffeinspritzsystem

    公开(公告)号：EP1030047A3

    公开(公告)日：2005-06-01

    申请号：EP00100737.6

    申请日：2000-01-14

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Sugiyama, Tatsumasa ,  Katou, Yuuichirou

    IPC分类号： F02D41/38

    CPC分类号： F02D41/3845 ,  F02D41/3827 ,  F02D41/408 ,  F02D2041/1422 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2250/31

    摘要： A fuel pressure control device and method for a high pressure fuel injection system serve to ensure good control and response characteristics irrespective of a transition state or a stationary state. Injectors (12) injecting a fuel into combustion chambers of cylinders (#1 to #4) of an engine (10) are connected to a common rail (20) and supplied with a high pressure fuel from the common rail (20). A fuel pump (30) pressurizes fuel in a fuel tank (14) to high pressure and force-feeds to the common rail (20). An ECU (60) sets closing timings of regulation valves (70a, 70b) of a fuel pump (30) based on predetermined control gains, thereby changing fuel force feed quantity and controlling fuel pressure within the common rail (20) to coincide with target fuel pressure. The ECU (60) variably sets the control gains based on the bulk modulus of the fuel calculated based on the pressure and temperature of the fuel within the common rail (20).

    摘要翻译： 用于高压燃料喷射系统的燃料压力控制装置和方法用于确保良好的控制和响应特性，而与过渡状态或静止状态无关。 将燃料喷射到发动机（10）的气缸（＃1至＃4）的燃烧室中的喷射器（12）连接到共轨（20）并从共轨（20）供给高压燃料。 燃料泵（30）将燃料箱（14）中的燃料加压到高压，并将力供给到共轨（20）。 ECU（60）基于预定的控制增益设定燃料泵（30）的调节阀（70a，70b）的关闭定时，从而改变燃料供给量并控制共轨（20）内的燃料压力与目标 燃油压力。 ECU（60）基于基于共轨（20）内的燃料的压力和温度计算的燃料的体积弹性模量可变地设定控制增益。

    Method and apparatus for controlling sulfur poisoning recovery of a catalyst
    65.
    发明公开
    Method and apparatus for controlling sulfur poisoning recovery of a catalyst 有权
    用于控制催化剂的硫中毒回收的方法和设备

    公开(公告)号：EP1515030A2

    公开(公告)日：2005-03-16

    申请号：EP04021488.4

    申请日：2004-09-09

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kobayashi, Nobuki ,  Otsubo, Yasuhiko ,  Tahara, Jun ,  Sugiyama, Tatsumasa

    IPC分类号： F02D41/02 ,  F02D41/14

    CPC分类号： F02D41/1454 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0885 ,  F01N9/002 ,  F01N13/009 ,  F01N13/0097 ,  F01N2570/04 ,  F01N2610/03 ,  F02B37/00 ,  F02D41/028 ,  F02D41/1446 ,  F02D41/405 ,  Y02T10/47

    摘要： In the state where an air-fuel ratio AF is equal to or lower than a reference air-fuel ratio AFr (AF ≤ AFr) ("YES" in step S204), when at least one of the condition that an upstream side exhaust gas temperature Texin of an exhaust gas control catalyst on the downstream (38a) side is higher than a high temperature determination reference temperature Tsin (Texin > Tsin) (step S206) and the condition that a downstream side exhaust gas temperature Texout of the exhaust gas control catalyst on the downstream side (38a) is higher than a high temperature determination reference temperature Tsout (Texout > Tsout) (step S208) is satisfied, a sulfur poisoning recovery computation is performed (step S210). The degree of recovery from sulfur poisoning can be thus obtained with high accuracy. Accordingly, a catalyst bed temperature increasing process and an air-fuel ratio decreasing process can be appropriately performed by the sulfur poisoning recovery control. As a result, heat degradation of the exhaust gas control catalyst on the downstream side (38a) is not promoted and reduction in fuel efficiency is not caused, even when a failure, e.g., degradation and clogging, occurs in the exhaust gas control catalyst on the upstream side (36a).

    摘要翻译： 在空燃比AF为基准空燃比AFr以下（AF≤AFr）的状态下（步骤S204：“是”），在上游侧排气 下游（38a）侧的废气控制催化剂的温度Texin高于高温判定基准温度Tsin（Texin> Tsin）（步骤S206），并且废气控制的下游侧废气温度Texout （38a）的催化剂比高温判定基准温度Tsout（Texout> Tsout）高（步骤S208）以上时，进行硫中毒恢复运算（步骤S210）。 由此可以高精度地获得硫中毒的恢复程度。 因此，可以通过硫中毒恢复控制适当地执行催化剂床温升高过程和空燃比降低过程。 其结果是，即使在废气控制催化剂中产生了劣化，堵塞等故障，也不会促进下游侧（38a）的废气控制催化剂的热劣化，不会导致燃料效率降低 上游侧（36a）。

    Method for managing NOx catalyst
    68.
    发明公开
    Method for managing NOx catalyst 审中-公开
    Verfahren zur Regelung eines NOx-Speicherkatalysators

    公开(公告)号：EP1469180A2

    公开(公告)日：2004-10-20

    申请号：EP04008984.9

    申请日：2004-04-15

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Kabushiki Kaisha Toyota Jidoshokki

    发明人： Sugiyama, Tatsumasa ,  Tsuzuki, Masato ,  Ishikawa, Masahiko ,  Kobayashi, Nobuki ,  Tahara, Jun ,  Kato, Hidenaga

    IPC分类号： F02D41/02

    CPC分类号： F02D41/1463 ,  F02D41/0055 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/3035

    摘要： In a diesel engine, prior to a sulfur discharging process, a pre-process is performed to decrease the air-fuel ratio of the air-fuel mixture that is to be burned in the engine so that the air-fuel ratio A/FEHT of the exhaust gas reaches a predetermined pre-process value α. The time required for the air-fuel ratio A/FEHT of the exhaust gas to stabilize near the pre-process value α is set as a stand-by time TS. The sulfur discharging process starts after the stand-by time elapses. This enhances the convergence of the air-fuel ratio A/FEHT to the target value during the sulfur discharging process. If a predetermined condition is satisfied, the stand-by time is cancelled to start the sulfur discharging process when or just after the pre-process is started. This efficiently processes the sulfur components accumulated in a NOx storage catalyst, which is arranged in an exhaust passage of the engine, without deteriorating the exhaust gas property.

    摘要翻译： 在柴油发动机中，在硫排放过程之前，进行预处理以降低在发动机中要燃烧的空气燃料混合物的空燃比，使得空燃比A / FEHT 废气达到预定的预处理值α。 排气的空燃比A / FEHT在预处理值α附近稳定所需的时间被设定为待机时间TS。 经过等待时间后，硫排放过程开始。 这在硫排放过程中增强了空燃比A / FEHT与目标值的收敛。 如果满足预定条件，则在预处理开始时或之后取消等待时间以开始硫排放处理。 这有效地处理了排放在发动机的排气通道中的NOx储存催化剂中积聚的硫成分，而不会降低排气性能。