Method for heating a catalytic converter arranged in an exhaust-gas region of a combustion process, and device for carrying out the method
    1.
    发明授权
    Method for heating a catalytic converter arranged in an exhaust-gas region of a combustion process, and device for carrying out the method 有权
    用于加热布置在燃烧过程的排气区域中的催化转化器的方法,以及用于执行该方法的装置

    公开(公告)号:US08312709B2

    公开(公告)日:2012-11-20

    申请号:US12514997

    申请日:2007-12-27

    IPC分类号: F01N3/00

    摘要: An internal combustion engine is operated with direct fuel injection into the combustion chambers. Furthermore, the internal combustion engine is operated with sub-optimum ignition angle efficiency and an apportionment of a fuel quantity, which is to be injected before the start of a combustion, into at least two partial injections. A torque loss which results from the sub-optimum ignition angle efficiency and/or from the apportionment of the fuel to be injected is compensated by means of an increased charge of the combustion chambers. The fuel quantity and the charge are coordinated with one another in such a way that the air ratio lambda of the combustion chamber charges is greater than 1. The method is characterized in that a measure for a temperature of the catalytic converter, in particular a measure for the temperature at the inlet of the catalytic converter, is determined and in that a quantity of reducing exhaust-gas constituents is increased by means of at least one intervention into the control of the internal combustion engine if the measure for the temperature exceeds a predetermined temperature threshold value. The approach according to the invention permits rapid heating of the catalytic converter, wherein the hydrocarbon emissions when the catalytic converter is cold are at the same time as low as possible.

    摘要翻译: 内燃机通过直接燃料喷射进入燃烧室来操作。 此外,内燃机以次最佳点火角效率和要在燃烧开始之前喷射的燃料量的分配进行至少两次局部喷射。 通过燃烧室的增加的电荷补偿由次最佳点火角效率和/或来自待喷射的燃料的分配产生的扭矩损失。 燃料量和电荷彼此协调,使得燃烧室充气的空气比λ大于1.该方法的特征在于,催化转化器的温度,特别是一种测量 对于催化转化器的入口处的温度是确定的,并且如果温度的测量超过预定值,则通过至少一个干预内燃机的控制来增加一定量的还原废气组分 温度阈值。 根据本发明的方法允许催化转化器的快速加热,其中当催化转化器冷时的碳氢化合物排放量尽可能低的同时。

    PROCEDURE AND CONTROL UNIT FOR HEATING UP A CATALYST ARRANGED IN THE EXHAUST GAS SYSTEM OF A SUPERCHARGED COMBUSTION ENGINE
    2.
    发明申请
    PROCEDURE AND CONTROL UNIT FOR HEATING UP A CATALYST ARRANGED IN THE EXHAUST GAS SYSTEM OF A SUPERCHARGED COMBUSTION ENGINE 审中-公开
    加热发动机排气系统中加热催化剂的程序和控制单元

    公开(公告)号:US20090133386A1

    公开(公告)日:2009-05-28

    申请号:US12272405

    申请日:2008-11-17

    IPC分类号: F01N9/00

    摘要: Suggested is a procedure for heating up a catalyst in the exhaust gas system of a charged combustion engine by adding air to the exhaust gas system, whereby the added air is taken from a suction system of the combustion engine in the direction of the air current behind a compressor of an exhaust gas turbo charger that is arranged in the suction system. The procedure distinguishes itself thereby that the combustion engine is driven with a direct injection of fuel in its combustion chambers, whereby it is driven after a start-up with an apportionment of a fuel amount, which has to be injected before the beginning of a combustion, into at least two partial injections per ignition, and with a suboptimal ignition angle efficiency. A second independent claim concerns a control unit, which is customized for controlling the course of the procedure.

    摘要翻译: 提出了一种通过向排气系统中添加空气来加热填充燃烧发动机的排气系统中的催化剂的步骤,由此将附加的空气从内燃机的吸入系统沿着气流的方向 布置在抽吸系统中的排气涡轮增压器的压缩机。 该过程区别于此,内燃机通过在其燃烧室中直接喷射燃料而被驱动,由此在起动之后驱动内燃机,其中燃料量的分配必须在燃烧开始之前被喷射 ,每次点火进入至少两次部分喷射,并且具有次佳的点火角效率。 第二个独立权利要求涉及一个控制单元,该控制单元被定制用于控制该过程的过程。

    Procedure and control unit for an accelerated heating of a catalyst in an exhaust gas system of a supercharged combustion engine with a variable valve control
    3.
    发明授权
    Procedure and control unit for an accelerated heating of a catalyst in an exhaust gas system of a supercharged combustion engine with a variable valve control 有权
    用于加速加热具有可变气门控制的增压内燃机的排气系统中的催化剂的程序和控制单元

    公开(公告)号:US08561394B2

    公开(公告)日:2013-10-22

    申请号:US12272428

    申请日:2008-11-17

    IPC分类号: F01N3/10

    摘要: Suggested is a procedure for heating a catalyst in the exhaust gas system of a supercharged combustion engine with direct fuel injection and variable gas exchange valve control by producing a reactive exhaust gas fuel/air mixture in the exhaust gas system, whereby an air percentage of the reactive fuel/air mixture is thereby produced that air is rinsed from a suction system of the combustion engine over its combustion chambers into the exhaust gas system. The invention distinguishes itself thereby that the combustion engine is operated in idle mode after a cold start with a greater valve overlap and/or a greater valve overlap profile than in a normal operation where the catalyst is already heated as well as with an apportionment of a fuel amount that has to be injected before a combustion into at least two partial injections per ignition and combustion chamber and with a suboptimal ignition angle efficiency.

    摘要翻译: 提出了一种通过在废气系统中产生无功排气燃料/空气混合物来加热具有直接燃料喷射和可变气体交换阀控制的增压内燃机的排气系统中的催化剂的步骤,由此, 从而产生反应性燃料/空气混合物,使空气从内燃机的抽吸系统在其燃烧室上漂洗到废气系统中。 本发明区别于此,在具有更大的阀重叠和/或更大的阀重叠轮廓的冷启动之后,内燃机在空气模式下操作,其中催化剂已被加热的正常操作以及分配的 在燃烧之前必须喷射的燃料量至少是每个点燃和燃烧室的两次部分喷射,并具有次佳的点火角效率。

    METHOD FOR HEATING A CATALYTIC CONVERTER ARRANGED IN AN EXHAUST-GAS REGION OF A COMBUSTION PROCESS, AND DEVICE FOR CARRYING OUT THE METHOD
    4.
    发明申请
    METHOD FOR HEATING A CATALYTIC CONVERTER ARRANGED IN AN EXHAUST-GAS REGION OF A COMBUSTION PROCESS, AND DEVICE FOR CARRYING OUT THE METHOD 有权
    用于加热在燃烧过程的排气区域中安装的催化转化器的方法,以及用于实施方法的装置

    公开(公告)号:US20100024392A1

    公开(公告)日:2010-02-04

    申请号:US12514997

    申请日:2007-12-27

    IPC分类号: F01N9/00 F01N3/10

    摘要: An internal combustion engine is operated with direct fuel injection into the combustion chambers. Furthermore, the internal combustion engine is operated with sub-optimum ignition angle efficiency and an apportionment of a fuel quantity, which is to be injected before the start of a combustion, into at least two partial injections. A torque loss which results from the sub-optimum ignition angle efficiency and/or from the apportionment of the fuel to be injected is compensated by means of an increased charge of the combustion chambers. The fuel quantity and the charge are coordinated with one another in such a way that the air ratio lambda of the combustion chamber charges is greater than 1. The method is characterized in that a measure for a temperature of the catalytic converter, in particular a measure for the temperature at the inlet of the catalytic converter, is determined and in that a quantity of reducing exhaust-gas constituents is increased by means of at least one intervention into the control of the internal combustion engine if the measure for the temperature exceeds a predetermined temperature threshold value. The approach according to the invention permits rapid heating of the catalytic converter, wherein the hydrocarbon emissions when the catalytic converter is cold are at the same time as low as possible.

    摘要翻译: 内燃机通过直接燃料喷射进入燃烧室来操作。 此外,内燃机以次最佳点火角效率和要在燃烧开始之前喷射的燃料量的分配进行至少两次局部喷射。 通过燃烧室的增加的电荷补偿由次最佳点火角效率和/或来自待喷射的燃料的分配产生的扭矩损失。 燃料量和电荷彼此协调,使得燃烧室充气的空气比λ大于1.该方法的特征在于,催化转化器的温度,特别是一种测量 对于催化转化器的入口处的温度是确定的,并且如果温度的测量超过预定值,则通过至少一个干预内燃机的控制来增加一定量的还原废气组分 温度阈值。 根据本发明的方法允许催化转化器的快速加热,其中当催化转化器冷时的碳氢化合物排放量尽可能低的同时。

    Method for operating an internal combustion engine
    6.
    发明授权
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US08181625B2

    公开(公告)日:2012-05-22

    申请号:US12225843

    申请日:2007-03-15

    IPC分类号: F02B17/00

    摘要: In an internal combustion engine, fuel is directly injected into at least one combustion chamber at least during a compression stroke in such a way that a stratified mixture is present in the combustion chamber. This mixture is then externally ignited. The fuel is introduced during the compression stroke by at least one main injection and an ignition injection, the ignition injection taking place immediately before an ignition and producing at least essentially no torque.

    摘要翻译: 在内燃机中,燃料至少在压缩冲程期间直接喷射到至少一个燃烧室中,使得分层混合物存在于燃烧室中。 然后将该混合物外部点燃。 燃料在压缩冲程期间通过至少一个主喷射和点火喷射引入,点火喷射在紧接点火之前发生,并至少产生基本上没有扭矩。

    PROCEDURE AND CONTROL UNIT FOR AN ACCELERATED HEATING OF A CATALYST IN AN EXHAUST GAS SYSTEM OF A SUPERCHARGED COMBUSTION ENGINE WITH A VARIABLE VALVE CONTROL
    7.
    发明申请
    PROCEDURE AND CONTROL UNIT FOR AN ACCELERATED HEATING OF A CATALYST IN AN EXHAUST GAS SYSTEM OF A SUPERCHARGED COMBUSTION ENGINE WITH A VARIABLE VALVE CONTROL 有权
    具有可变阀门控制的超级燃油发动机排气系统中催化剂加速加热的程序和控制单元

    公开(公告)号:US20090133391A1

    公开(公告)日:2009-05-28

    申请号:US12272428

    申请日:2008-11-17

    IPC分类号: F01N3/10

    摘要: Suggested is a procedure for heating a catalyst in the exhaust gas system of a supercharged combustion engine with direct fuel injection and variable gas exchange valve control by producing a reactive exhaust gas fuel/air mixture in the exhaust gas system, whereby an air percentage of the reactive fuel/air mixture is thereby produced that air is rinsed from a suction system of the combustion engine over its combustion chambers into the exhaust gas system. The invention distinguishes itself thereby that the combustion engine is operated in idle mode after a cold start with a greater valve overlap and/or a greater valve overlap profile than in a normal operation where the catalyst is already heated as well as with an apportionment of a fuel amount that has to be injected before a combustion into at least two partial injections per ignition and combustion chamber and with a suboptimal ignition angle efficiency.

    摘要翻译: 提出了一种通过在废气系统中产生无功排气燃料/空气混合物来加热具有直接燃料喷射和可变气体交换阀控制的增压内燃机的排气系统中的催化剂的步骤,由此, 从而产生反应性燃料/空气混合物,使空气从内燃机的抽吸系统在其燃烧室上漂洗到废气系统中。 本发明区别于此,在具有更大的阀重叠和/或更大的阀重叠轮廓的冷启动之后,内燃机在空气模式下操作,其中催化剂已被加热的正常操作以及分配的 在燃烧之前必须喷射的燃料量至少是每个点燃和燃烧室的两次部分喷射,并具有次佳的点火角效率。

    Method for operating an internal combustion engine
    9.
    发明申请
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US20080053411A1

    公开(公告)日:2008-03-06

    申请号:US11890936

    申请日:2007-08-06

    IPC分类号: F02D41/30

    摘要: A method for operating an internal combustion engine having a first fuel injection system for injecting fuel into a combustion chamber of a cylinder of the internal combustion engine, and having a second fuel injection system for intake manifold injection, an injected fuel mass being corrected for the adaptation of an air/fuel mixture ratio; and at least one first adaptation value for the first fuel injection system being used and at least one second adaptation value for the second fuel injection system being used. The first and the second adaptation value are evaluated in order to conclude whether there is an error in an air system of the internal combustion engine.

    摘要翻译: 一种用于操作内燃机的方法,所述内燃机具有第一燃料喷射系统,用于将燃料喷射到所述内燃机的气缸的燃烧室中,并且具有用于进气歧管喷射的第二燃料喷射系统, 适应空气/燃料混合比; 并且使用用于所述第一燃料喷射系统的至少一个第一适应值,并且使用用于所述第二燃料喷射系统的至少一个第二适应值。 评估第一适应值和第二适配值,以便确定内燃机的空气系统中是否存在误差。

    Method and device for operating a piezoelectric actuator
    10.
    发明授权
    Method and device for operating a piezoelectric actuator 有权
    用于操作压电致动器的方法和装置

    公开(公告)号:US09438137B2

    公开(公告)日:2016-09-06

    申请号:US14111239

    申请日:2012-03-16

    摘要: A method for operating a piezoelectric actuator which may be activated with the aid of an activation signal. The piezoelectric actuator is operable in a passive and in an active operating mode. The piezoelectric actuator is activated without a functional operating request if the piezoelectric actuator is in a passive operating mode.

    摘要翻译: 一种用于操作可以借助于激活信号而被激活的压电致动器的方法。 压电致动器可在无源和主动操作模式下操作。 如果压电致动器处于被动操作模式,则压电致动器被激活而没有功能操作请求。