Control apparatus for internal combustion engine including variable valve operating mechanism
    1.
    发明授权
    Control apparatus for internal combustion engine including variable valve operating mechanism 有权
    包括可变气门操作机构的内燃机控制装置

    公开(公告)号:US08554446B2

    公开(公告)日:2013-10-08

    申请号:US13203793

    申请日:2009-04-15

    Abstract: Provided is a control apparatus, which can successfully suppress that deterioration of combustion is caused in response to inflow of a large amount of blow-by gas to cylinders at the time of a valve return from a valve stop state in an internal combustion engine including a positive crankcase ventilation system and a variable valve operating mechanism that is capable of stopping at least one valve of an intake valve and exhaust valve in a closed state. A valve stop control is performed which stops the intake valve and exhaust valve in a closed state when a fuel cut of the internal combustion engine is executed. A deviation amount ΔA/F between a predetermined target air fuel ratio and an actual air fuel ratio detected by an A/F sensor at the time of a valve return is obtained. A correction is performed to decrease a fuel injection amount by a fuel amount equivalent to the deviation amount ΔA/F at the time of the subsequent valve returns.

    Abstract translation: 提供一种控制装置,其能够成功地抑制在内燃机中从阀停止状态返回时响应于大量的窜缸气体向气缸的流入而引起燃烧劣化,所述内燃机包括 正曲轴箱通风系统和能够在关闭状态下停止进气门和排气阀的至少一个阀的可变气门操作机构。 当执行内燃机的燃料切断时,执行阀停止控制,该停止控制将进气门和排气门停止在关闭状态。 获得在阀返回时由A / F传感器检测到的预定目标空燃比与实际空燃比之间的偏差量ΔA/ F。 执行校正以通过与随后的阀返回时的偏差量ΔA/ F相当的燃料量来减少燃料喷射量。

    Exhaust gas purifying apparatus for internal combustion engine
    2.
    发明授权
    Exhaust gas purifying apparatus for internal combustion engine 有权
    内燃机用废气净化装置

    公开(公告)号:US08516801B2

    公开(公告)日:2013-08-27

    申请号:US12530237

    申请日:2008-03-10

    Abstract: An object of the present invention is to provide an exhaust gas purifying apparatus for an internal combustion engine which can properly purge at least NOx of unpurified components contained in exhaust gas while considering characteristics of NOx desorbed from an adsorbent. A bypass passage 18 bypassing a main exhaust passage 12 of the internal combustion engine 10 is provided. A HC/NOx adsorbent 22 having a function of adsorbing HC and NOx is provided in the bypass passage 18. A second underfloor catalyst 30 is provided downstream of the adsorbent 22. A purge passage 26 branching off from the bypass passage 18 while connecting to an intake passage is provided. An exhaust switching valve 20 and a purge control valve 28 are provided as a flow path switching means that is capable of switching a flow target into which the exhaust gas flows between the main exhaust passage 12 and the bypass passage 18. If the purging operations are executed, the intake purging operation is first executed. After that, the intake purging operation is switched to the exhaust purging operation at a timing existing after the purge of NOx is completed and at the time point at which the temperature of the adsorbent becomes stable.

    Abstract translation: 本发明的目的是提供一种用于内燃机的废气净化装置,其能够考虑到从吸附剂脱附的NOx的特性,能够适当地净化废气中所含的未纯化成分的NOx。 设置有绕过内燃机10的主排气通路12的旁路通道18。 具有吸附HC和NOx的功能的HC / NOx吸附剂22设置在旁通通道18中。第二底板催化剂30设置在吸附剂22的下游。一个从旁路通道18分支的清洗通道26,同时连接到 提供进气通道。 设置排气切换阀20和排气控制阀28作为流路切换装置,其能够切换排气在主排气通路12和旁通通路18之间流动的流动目标。如果清洗操作是 首先执行进气清洗操作。 之后,在完成NOx的净化之后的时刻和吸附剂的温度稳定的时刻,进行排气操作切换到排气净化操作。

    EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE
    3.
    发明申请
    EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气控制装置

    公开(公告)号:US20130086893A1

    公开(公告)日:2013-04-11

    申请号:US13704879

    申请日:2010-06-18

    Abstract: An exhaust gas control apparatus (100) of an internal combustion engine (200) of a vehicle, which is provided with: the internal combustion engine which can use fuel containing methane in exhaust gas; an exhaust gas purifying apparatus (300) disposed in an exhaust passage of the internal combustion engine; an EGR passage (400) which can recirculate the exhaust gas to an intake passage of the internal combustion engine, in a HPL path which does not include the exhaust gas purifying apparatus; and an adjusting device (407) which can adjust an exhaust gas recirculation amount in the EGR passage, is provided with: a first specifying device for specifying a methane concentration in the exhaust gas; and a first controlling device for controlling the adjusting device to increase an exhaust gas recirculation amount in the HPL path if the specified methane concentration is greater than or equal to a reference value.

    Abstract translation: 一种车辆内燃机(200)的排气控制装置(100),其具备:能够使用排气中含有甲烷的燃料的内燃机; 排气净化装置(300),其设置在所述内燃机的排气通路中; 能够将废气再循环到内燃机的进气通路的EGR通路(400),其不包括废气净化装置; 以及能够调节EGR通路中的废气再循环量的调整装置(407),具备:用于规定排气中的甲烷浓度的第一指定装置; 以及第一控制装置,用于如果指定的甲烷浓度大于或等于参考值,则控制调节装置以增加HPL路径中的废气再循环量。

    Control apparatus for internal combustion engine including variable valve operating mechanism
    4.
    发明授权
    Control apparatus for internal combustion engine including variable valve operating mechanism 有权
    包括可变气门操作机构的内燃机控制装置

    公开(公告)号:US08285469B2

    公开(公告)日:2012-10-09

    申请号:US12677640

    申请日:2008-12-26

    Abstract: The present invention has its object to provide a control apparatus for an internal combustion engine including a variable valve operating mechanism which is capable of accurately and effectively identifying an abnormality-occurring cylinder during operation while preventing the deterioration of a catalyst. A fuel injection valve which is capable of injecting fuel for each cylinder is provided. Variable valve operating mechanisms which are capable of halting the operation of the intake and exhaust valves in the closed state for each cylinder are provided. An abnormality evaluation index value is acquired during the operation of the internal combustion engine and, based on the abnormality evaluation index value, an abnormality which has occurred in at least one cylinder in the internal combustion engine is detected. When the abnormality is detected, a cylinder halting to perform the halting of fuel supply and the halting of the valve operation in the closed state is executed with a first partial cylinder made up of at least two cylinders as the target. After the cylinder halting, with the cylinder to be halted being changed, a cylinder halting is executed with a second partial cylinder made up of at least one cylinder as the target. Based on the change in the abnormality evaluation index value associated with the changing of the cylinder to be halted, the abnormality-occurring cylinder is identified.

    Abstract translation: 本发明的目的在于提供一种内燃机的控制装置,其包括可变气门操作机构,该可变气门操作机构能够在防止催化剂劣化的同时,在运转中准确有效地识别异常气缸。 提供能够为每个气缸喷射燃料的燃料喷射阀。 提供能够使每个气缸处于关闭状态的进气门和排气门的操作停止的可变气门操作机构。 在内燃机的运转中获取异常评价指标值,并且根据该异常评价指标值,检测到在内燃机的至少一个气缸中发生的异常。 当检测到异常时,利用由至少两个气缸构成的第一部分气缸作为目标,执行停止燃料供给的停止和关闭状态下的阀操作的停止的气缸。 在气缸停止之后,在要停止的气缸被改变的情况下,以由至少一个气缸作为目标的第二部分气缸执行气缸停止。 基于与要停止的气缸的变化相关联的异常评估指标值的变化,识别异常发生的气缸。

    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE INCLUDING VARIABLE VALVE OPERATING MECHANISM
    6.
    发明申请
    CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE INCLUDING VARIABLE VALVE OPERATING MECHANISM 有权
    内燃机的控制装置,包括可变阀操作机构

    公开(公告)号:US20110313642A1

    公开(公告)日:2011-12-22

    申请号:US13203793

    申请日:2009-04-15

    Abstract: Provided is a control apparatus, which can successfully suppress that deterioration of combustion is caused in response to inflow of a large amount of blow-by gas to cylinders at the time of a valve return from a valve stop state in an internal combustion engine including a positive crankcase ventilation system and a variable valve operating mechanism that is capable of stopping at least one valve of an intake valve and exhaust valve in a closed state. A valve stop control is performed which stops the intake valve and exhaust valve in a closed state when a fuel cut of the internal combustion engine is executed. A deviation amount ΔA/F between a predetermined target air fuel ratio and an actual air fuel ratio detected by an A/F sensor at the time of a valve return is obtained. A correction is performed to decrease a fuel injection amount by a fuel amount equivalent to the deviation amount ΔA/F at the time of the subsequent valve returns.

    Abstract translation: 提供一种控制装置,其能够成功地抑制在内燃机中从阀停止状态返回时响应于大量的窜缸气体向气缸的流入而引起燃烧劣化,所述内燃机包括 正曲轴箱通风系统和能够在关闭状态下停止进气门和排气阀的至少一个阀的可变气门操作机构。 当执行内燃机的燃料切断时,执行阀停止控制,该停止控制将进气门和排气门停止在关闭状态。 获得在阀返回时由A / F传感器检测到的预定目标空燃比与实际空燃比之间的偏差量&Dgr; A / F。 执行校正,以通过与随后的阀返回时的偏差量&Dgr; A / F相当的燃料量来减少燃料喷射量。

    EXHAUST GAS PURIFICATION DEVICE AND EXHAUST GAS PURIFICATION METHOD FOR INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    EXHAUST GAS PURIFICATION DEVICE AND EXHAUST GAS PURIFICATION METHOD FOR INTERNAL COMBUSTION ENGINE 有权
    排气净化装置和内燃机排气净化方法

    公开(公告)号:US20100307141A1

    公开(公告)日:2010-12-09

    申请号:US12739539

    申请日:2008-09-30

    Abstract: A moisture adsorbent (32) for adsorbing moisture in exhaust gas and an NOx adsorbent (34) for adsorbing NOx are disposed in a bypass passage (30) for bypassing an exhaust passage (16) of an internal combustion engine (10). When an adsorption operation to the NOx adsorbent (34) is executed, inflow of the exhaust gas to the bypass passage (30) is allowed until the moisture amount that flows into the water adsorbent (32) reaches an allowable moisture inflow amount. The allowable moisture inflow amount is determined based on a residual moisture amount before the starting of the adsorption operation in the moisture adsorbent (32). The residual moisture amount in the water adsorbent (32) can be determined based on the temperature of the moisture adsorbent (32) at the immediately preceding execution of the purge operation.

    Abstract translation: 用于吸附废气中的水分的吸湿剂(32)和用于吸附NOx的NOx吸附剂(34)设置在用于绕过内燃机(10)的排气通道(16)的旁路通道(30)中。 当执行对NOx吸附剂(34)的吸附操作时,允许废气流入旁通通道(30),直到流入水吸附剂(32)的水分量达到允许的水分流入量。 基于水分吸附剂(32)中的吸附动作开始前的残留水分量来确定容许水分流入量。 水吸附剂(32)中的残留水分量可以基于在先前执行清洗操作时的水分吸附剂(32)的温度来确定。

    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
    用于内燃机的排气净化装置

    公开(公告)号:US20100205939A1

    公开(公告)日:2010-08-19

    申请号:US12599537

    申请日:2008-04-28

    Abstract: A main exhaust passage 42 and a first bypass passage 46 bypassing the main exhaust passage 42 are provided. An absorbent 52 having a function of absorbing HC components and NOx components contained in exhaust gas is provided in the first bypass passage 46. An underfloor catalyst 56 including a catalyst with an electric heater (EHC) 58 is provided in a main exhaust passage 42 on a downstream side of a downstream connecting portion 48b in a first bypass passage 46. A second bypass passage 62 that provides communication between the main exhaust passage 42 downstream of the underfloor catalyst 56 and the first bypass passage 46 upstream of the absorbent 52 is provided. A first exhaust switching valve 50 is provided in an upstream connecting portion 48a, and a second exhaust switching valve 68 is provided in a main exhaust passage side connecting portion 64a. A pump 66 is provided in the middle of the second bypass passage 62.

    Abstract translation: 主排气通道42和旁通主排气通道42的第一旁通通道46设置。 具有吸收废气中的HC成分和NOx成分的功能的吸收剂52设置在第一旁路通路46中。具有电加热器(EHC)58的催化剂的地板下催化剂56设置在主排气通路42中, 在第一旁路通路46中的下游连接部分48b的下游侧。提供了在底板催化剂56下游的主排气通道42和吸收剂52上游的第一旁通通道46之间提供连通的第二旁通通道62。 第一排气切换阀50设置在上游连接部48a中,第二排气切换阀68设置在主排气通路侧连接部64a中。 泵66设置在第二旁通通道62的中间。

    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    EXHAUST GAS PURIFYING APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    用于内燃机的排气净化装置

    公开(公告)号:US20100132340A1

    公开(公告)日:2010-06-03

    申请号:US12530237

    申请日:2008-03-10

    Abstract: An object of the present invention is to provide an exhaust gas purifying apparatus for an internal combustion engine which can properly purge at least NOx of unpurified components contained in exhaust gas while considering characteristics of NOx desorbed from an adsorbent. A bypass passage 18 bypassing a main exhaust passage 12 of the internal combustion engine 10 is provided. A HC/NOx adsorbent 22 having a function of adsorbing HC and NOx is provided in the bypass passage 18. A second underfloor catalyst 30 is provided downstream of the adsorbent 22. A purge passage 26 branching off from the bypass passage 18 while connecting to an intake passage is provided. An exhaust switching valve 20 and a purge control valve 28 are provided as a flow path switching means that is capable of switching a flow target into which the exhaust gas flows between the main exhaust passage 12 and the bypass passage 18. If the purging operations are executed, the intake purging operation is first executed. After that, the intake purging operation is switched to the exhaust purging operation at a timing existing after the purge of NOx is completed and at the time point at which the temperature of the adsorbent becomes stable.

    Abstract translation: 本发明的目的是提供一种用于内燃机的废气净化装置,其能够考虑到从吸附剂脱附的NOx的特性,能够适当地净化废气中所含的未纯化成分的NOx。 设置有绕过内燃机10的主排气通路12的旁路通道18。 具有吸附HC和NOx的功能的HC / NOx吸附剂22设置在旁通通道18中。第二底板催化剂30设置在吸附剂22的下游。一个从旁路通道18分支的清洗通道26,同时连接到 提供进气通道。 设置排气切换阀20和排气控制阀28作为流路切换装置,其能够切换排气在主排气通路12和旁通通路18之间流动的流动目标。如果清洗操作是 首先执行进气清洗操作。 之后,在完成NOx的净化之后的时刻和吸附剂的温度稳定的时刻,进行排气操作切换到排气净化操作。

    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND PERFORMANCE DIAGNOSIS METHOD FOR NOx ADSORBENT
    10.
    发明申请
    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE AND PERFORMANCE DIAGNOSIS METHOD FOR NOx ADSORBENT 失效
    用于内燃机的排气控制装置和NOx吸附性能性能诊断方法

    公开(公告)号:US20100115919A1

    公开(公告)日:2010-05-13

    申请号:US12594865

    申请日:2008-03-21

    Abstract: The present invention relates to an exhaust emission control device having an NOx adsorbent, and makes it possible to judge whether the performance of the NOx adsorbent is degraded temporarily or permanently. The amounts of NOx and water adsorbed by the NOx adsorbent are measured during an actual operation of an internal combustion engine. A reference line indicating the correlation between a preselected water adsorption amount and NOx adsorption amount is then referenced to determine a reference value y0 of the NOx adsorption amount that corresponds to a measured value x1 of the water adsorption amount. Next, a measured value y1 of the NOx adsorption amount is compared against the reference value y0 to output a signal in which the result of the comparison is reflected.

    Abstract translation: 本发明涉及一种具有NOx吸附剂的废气排放控制装置,并且能够判断NOx吸附剂的性能是否暂时或永久地劣化。 在内燃机的实际操作期间,测量NOx吸附剂吸附的NOx和水的量。 然后参考表示预选水吸附量与NOx吸附量之间的相关性的参考线,以确定对应于水吸附量的测量值x1的NOx吸附量的参考值y 0。 接下来,将NOx吸附量的测量值y1与参考值y0进行比较,以输出反映比较结果的信号。

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