METHOD TO DETERMINE A FUEL COMPOSITION
    1.
    发明申请
    METHOD TO DETERMINE A FUEL COMPOSITION 失效
    确定燃料组合物的方法

    公开(公告)号:US20090070017A1

    公开(公告)日:2009-03-12

    申请号:US12174918

    申请日:2008-07-17

    IPC分类号: F02D45/00

    摘要: The invention deals with a method to determine the fuel composition of a fuel mixture from a first fuel and a second fuel for the operation of an internal combustion engine, wherein the first and the second fuel have different octane numbers and wherein the internal combustion engine has at least one knock sensor and a closed-loop knock control. Provision is made according to the invention for the composition of the fuel mixture to be determined by means of an output signal of the knock sensor. Provision is made in many cases for the knock sensor to already be in the internal combustion engine, so that it does not present any additional expenditure of money or effort. Because the octane number of the fuel mixture is determined by the mixing ratio of the fuels involved, which have different octane numbers, in retrospect the composition of the fuel mixture can be suggested from the signal of the knock sensor under suitable operating conditions.

    摘要翻译: 本发明涉及一种用于确定来自用于操作内燃机的第一燃料和第二燃料的燃料混合物的燃料组成的方法,其中第一和第二燃料具有不同的辛烷值,并且其中内燃机具有 至少一个爆震传感器和闭环爆震控制。 根据本发明,根据爆震传感器的输出信号确定燃料混合物的组成。 在许多情况下,爆震传感器已经在内燃机中进行了规定,因此不会产生任何额外的资金或努力。 因为燃料混合物的辛烷值由具有不同辛烷值的燃料的混合比决定,所以回顾起来,可以在合适的操作条件下从爆震传感器的信号来建议燃料混合物的组成。

    Method for taking the outgassing of fuel from the engine oil of an internal combustion engine into account
    2.
    发明授权
    Method for taking the outgassing of fuel from the engine oil of an internal combustion engine into account 有权
    考虑到从内燃机的发动机油中排出燃料的方法

    公开(公告)号:US08333179B2

    公开(公告)日:2012-12-18

    申请号:US12203478

    申请日:2008-09-03

    摘要: The invention deals with a method for operating an internal combustion engine with engine oil as the lubricant, wherein a fuel mass flow outgassing from the engine oil is ascertained and is taken into account via a map-based pilot control during the metering of a quantity of fuel supplied to the internal combustion engine and wherein a fuel/air ratio supplied to the internal combustion engine is determined. Provision is made in the method according to the invention for a mass flow offset determined from the deviation of the fuel/air ratio supplied to the internal combustion engine from a nominal value to be taken into account when the metering of the quantity of fuel supplied to the internal combustion engine occurs during an effective duration of the map-based pilot control. The mass flow offset takes the deviation into account, which remained after the correction by a map-based pilot control of the quantity of fuel metered, on the basis of the modeled outgassing of fuel from the engine oil, and said mass flow offset balances the lambda controller in this way. The mass flow offset can by way of example have the effect of shortening the duration injection. The mixture deviations as a result of different boiling curves of the components of the fuel blend, which cannot be completely taken into account by the map-based pilot control under all operating conditions of the internal combustion engine, can in this way be compensated.

    摘要翻译: 本发明涉及一种用发动机油作为润滑剂来操作内燃机的方法,其中确定从发动机油排出的燃料质量流,并且在计量一定数量的发动机油时经由基于地图的先导控制被考虑 供给到内燃机的燃料,并且确定供给到内燃机的燃料/空气比。 在根据本发明的方法中提供了从供应到内燃机的燃料/空气比的偏差确定的质量流量偏移与要计算的供应给 在基于地图的先导控制的有效持续时间内发生内燃机。 基于来自发动机油的燃料的建模排气,质量流量偏移考虑到通过基于地图的先导控制计量的燃料量的校正之后的偏差,并且所述质量流量偏移平衡 lambda控制器以这种方式。 作为示例,质量流量偏移具有缩短持续时间注入的效果。 作为燃料混合物的组分的不同沸腾曲线的结果,由内燃机的所有运行条件下的基于地图的先导控制都不能完全考虑的混合偏差可以以这种方式得到补偿。

    METHOD FOR TAKING THE OUTGASSING OF FUEL FROM THE ENGINE OIL OF AN INTERNAL COMBUSTION ENGINE INTO ACCOUNT
    4.
    发明申请
    METHOD FOR TAKING THE OUTGASSING OF FUEL FROM THE ENGINE OIL OF AN INTERNAL COMBUSTION ENGINE INTO ACCOUNT 有权
    将内燃机发动机燃油从燃油中排出的方法

    公开(公告)号:US20090133678A1

    公开(公告)日:2009-05-28

    申请号:US12203478

    申请日:2008-09-03

    IPC分类号: F02D41/00

    摘要: The invention deals with a method for operating an internal combustion engine with engine oil as the lubricant, wherein a fuel mass flow outgassing from the engine oil is ascertained and is taken into account via a map-based pilot control during the metering of a quantity of fuel supplied to the internal combustion engine and wherein a fuel/air ratio supplied to the internal combustion engine is determined. Provision is made in the method according to the invention for a mass flow offset determined from the deviation of the fuel/air ratio supplied to the internal combustion engine from a nominal value to be taken into account when the metering of the quantity of fuel supplied to the internal combustion engine occurs during an effective duration of the map-based pilot control. The mass flow offset takes the deviation into account, which remained after the correction by a map-based pilot control of the quantity of fuel metered, on the basis of the modeled outgassing of fuel from the engine oil, and said mass flow offset balances the lambda controller in this way. The mass flow offset can by way of example have the effect of shortening the duration injection. The mixture deviations as a result of different boiling curves of the components of the fuel blend, which cannot be completely taken into account by the map-based pilot control under all operating conditions of the internal combustion engine, can in this way be compensated.

    摘要翻译: 本发明涉及一种用发动机油作为润滑剂来操作内燃机的方法,其中确定从发动机油排出的燃料质量流,并且在计量一定数量的发动机油时经由基于地图的先导控制被考虑 供给到内燃机的燃料,并且确定供给到内燃机的燃料/空气比。 在根据本发明的方法中提供了从供应到内燃机的燃料/空气比的偏差确定的质量流量偏移与要计算的供应给 在基于地图的先导控制的有效持续时间内发生内燃机。 基于来自发动机油的燃料的建模排气,质量流量偏移考虑到通过基于地图的先导控制计量的燃料量的校正之后的偏差,并且所述质量流量偏移平衡 lambda控制器以这种方式。 作为示例,质量流量偏移具有缩短持续时间注入的效果。 作为燃料混合物的组分的不同沸腾曲线的结果,由内燃机的所有运行条件下的基于地图的先导控制都不能完全考虑的混合偏差可以以这种方式得到补偿。

    METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    5.
    发明申请
    METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE 审中-公开
    操作内燃机的方法

    公开(公告)号:US20100198486A1

    公开(公告)日:2010-08-05

    申请号:US12598725

    申请日:2008-03-20

    IPC分类号: F02D41/30 F02B13/00

    摘要: The invention relates to a method for operating an internal combustion engine, which can be operated with fuels and fuel mixtures of said fuels, said fuels differing from each other in the air quantity they require for a stoichiometric combustion. A fuel quantity to be supplied to the internal combustion engine is corrected via a mixture adaptation and a fuel adaptation, the mixture adaptation and the fuel adaptation being based on a lambda control and a fuel quantity contained in the fuel reservoir of the internal combustion engine prior to refueling and a fuel quantity supplied to the reservoir being determined. The method is characterized by using the change of the fuel adaptation after refueling towards a fuel/air mixture having a higher or a lower fuel percentage to extrapolate the supplied fuel or the supplied fuel mixture and the fuel quantity present in the reservoir and the knowledge of the nature of the fuel or the fuel mixture supplied to the reservoir are used to calculate the fuel mixture ration in the reservoir after refueling. The method according to the invention allows determination of the fuel mixture ratio in the reservoir of internal combustion engines which can be operated with different fuels.

    摘要翻译: 本发明涉及一种用于操作内燃机的方法,所述内燃机可以与所述燃料的燃料和燃料混合物一起操作,所述燃料在其用于化学计量燃烧所需的空气量中彼此不同。 通过混合适应和燃料适应来校正要供应到内燃机的燃料量,混合物适应和燃料适应基于包含在内燃机的燃料储存器中的λ控制和燃料量 确定供给到储存器的燃料量。 该方法的特征在于在向具有较高或较低燃料百分比的燃料/空气混合物加油之后使用燃料适应性的改变来外推供应的燃料或供应的燃料混合物和存在于储层中的燃料量 供给到储存器的燃料或燃料混合物的性质用于在加油后计算储层中的燃料混合比。 根据本发明的方法允许确定可以用不同燃料操作的内燃机的储存器中的燃料混合比。

    Method for the operation of an internal combustion engine
    6.
    发明授权
    Method for the operation of an internal combustion engine 有权
    内燃机运转方法

    公开(公告)号:US07946280B2

    公开(公告)日:2011-05-24

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B13/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders. The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。

    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    METHOD FOR THE OPERATION OF AN INTERNAL COMBUSTION ENGINE 有权
    内燃机运行方法

    公开(公告)号:US20090025695A1

    公开(公告)日:2009-01-29

    申请号:US12176792

    申请日:2008-07-21

    IPC分类号: F02B43/00

    摘要: The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders.The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

    摘要翻译: 本发明涉及一种用于操作具有至少两个气缸的内燃机的方法,所述至少两个气缸可以使用储存在罐中的可变质量燃料和/或从储存在罐中的燃料混合物从第一和至少 可变混合比的第二燃料,并且其中不同组成的可变燃料质量和/或燃料混合物需要可变的空气/燃料比以实现稳定的燃烧和/或具有可变的汽化行为。 因此,为了对每个气缸分别调整输送到气缸的燃料量进行变化以供给稀释物和/或至少一个气缸的富空气/燃料混合物的设备,用于 对待评估的气缸和/或内燃机的启动特性和/或运行平稳度的影响以及当实现起动特性和/或运行平稳度的改善时,对于适于 适用于所有气瓶。 当燃料质量的改变或燃料组成的变化对燃料的可燃性产生影响时,该方法可以快速检测和避免起动问题。

    Method for determining the composition of a fuel blend
    8.
    发明授权
    Method for determining the composition of a fuel blend 有权
    用于确定燃料混合物的组成的方法

    公开(公告)号:US07996144B2

    公开(公告)日:2011-08-09

    申请号:US12347267

    申请日:2008-12-31

    IPC分类号: G06F19/00 F02D41/14 G01M15/00

    摘要: The invention relates to a method for the open-loop control of an internal combustion engine, which is operated with a fuel blend of an initial and at least one second fuel, the internal combustion engine having a fuel metering system, a tank fill-level gauge for determining the tank content and a change in the tank content, a sensor for the detection of the cylinder charge for determining an air mass supplied to the internal combustion engine and at least one exhaust gas probe for determining and controlling the oxygen content in the exhaust gas in a closed-loop. According to the invention, two methods, which are independent from each other, are used for determining the composition of the fuel blend.

    摘要翻译: 本发明涉及一种内燃机的开环控制方法,所述内燃机由初始和至少一种第二燃料的燃料混合物操作,所述内燃机具有燃料计量系统,罐装液位 用于确定罐容积和罐内容变化的量规,用于检测用于确定提供给内燃机的空气质量的气缸装料的传感器和用于确定和控制内燃机中的氧含量的至少一个废气探头 废气处于闭环状态。 根据本发明,彼此独立的两种方法用于确定燃料混合物的组成。

    METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE
    9.
    发明申请
    METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE 有权
    用于操作内燃机的方法和装置

    公开(公告)号:US20090281710A1

    公开(公告)日:2009-11-12

    申请号:US12435560

    申请日:2009-05-05

    IPC分类号: F02D41/30 F02B3/00 F02D41/00

    摘要: A method and a device for operating an internal combustion engine to perform a lambda regulation without using a lambda sensor. Fuel is injected for combustion in a combustion chamber of the internal combustion engine. A first quantity of the internal combustion engine is ascertained, which allows a conclusion to be drawn about the behavior of an output quantity of the internal combustion engine, in particular of a torque. The method includes the following: a) a first fuel quantity to be injected is predefined; b) a first value of the first quantity is ascertained, which results from a fuel injection according to the first fuel quantity to be injected; c) the fuel quantity to be injected is modified from the first fuel quantity to be injected in relation to an air quantity to be supplied to the internal combustion engine (1); d) a second value of the first quantity, which results from the change in the fuel quantity to be injected, is ascertained; e) the first value of the first quantity is compared to the second value of the first quantity, and f) as a function of the comparison result, a value for an air/fuel mixture ratio for the first fuel quantity to be injected prevailing prior to the change in the fuel quantity to be injected is ascertained independently of a measured value of a sensor measuring the oxygen level in the exhaust gas.

    摘要翻译: 一种用于操作内燃机以在不使用λ传感器的情况下执行λ调节的方法和装置。 在内燃机的燃烧室中喷射燃料用于燃烧。 确定第一数量的内燃机,这允许得出关于内燃机的输出量,特别是扭矩的行为的结论。 该方法包括以下步骤:a)预定要注入的第一燃料量; b)确定由根据要喷射的第一燃料量的燃料喷射而产生的第一数量的第一值; c)要喷射的燃料量相对于要供应到内燃机(1)的空气量从要喷射的第一燃料量改变; d)确定由要注入的燃料量的变化而产生的第一数量的第二值; e)将第一数量的第一值与第一数量的第二值进行比较,f)作为比较结果的函数,对于先前喷射的第一燃料量的空气/燃料混合比的值 可以独立于测量废气中的氧气含量的传感器的测量值来确定要喷射的燃料量的变化。