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

    Abstract: 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.

    Abstract translation: 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

    Abstract: 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.

    Abstract translation: 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

    Abstract: 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.

    Abstract translation: 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 TO DETERMINE A FUEL COMPOSITION
    5.
    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:US20080283030A1

    公开(公告)日:2008-11-20

    申请号:US12120009

    申请日:2008-05-13

    Abstract: The invention concerns a method to determine the composition of a fuel from the components ethanol and gasoline of an internal combustion engine, wherein the fuel is supplied to the internal combustion engine by means of a fuel supply unit and via two fuel distributor rails; and the exhaust gas is discharged from the internal combustion engine by means of two exhaust gas manifolds of a first and a second exhaust gas system, which are separated from each other, wherein the first and second exhaust gas system have in each case at least one exhaust gas probe and wherein current changes in the ethanol content of the fuel are evaluated from the signal differences of lambda signals from the exhaust gas probes. With this method, a change in the ethanol content of the fuel can be detected, and an explicit condition for a change in fuel can be derived. Moreover, with the method, errors in the fuel-mixture can be distinguished from an altered fuel composition, which takes place after the tank has been filled (fueling).

    Abstract translation: 本发明涉及一种确定来自内燃机的乙醇和汽油组分的燃料组成的方法,其中燃料通过燃料供应单元并通过两个燃料分配器轨道供应到内燃机; 并且废气通过彼此分离的第一和第二废气系统的两个排气歧管从内燃机排出,其中第一和第二废气系统在每种情况下都具有至少一个 废气探针,并且其中燃料的乙醇含量中的电流变化根据来自排气探针的λ信号的信号差来评估。 利用该方法,可以检测到燃料的乙醇含量的变化,并且可以得出燃料变化的明确条件。 此外,利用该方法,燃料混合物中的误差可以与在罐被填充(加油)之后发生的改变的燃料组成区分开来。

    Method to determine a fuel composition
    8.
    发明授权
    Method to determine a fuel composition 失效
    确定燃料组成的方法

    公开(公告)号:US07987839B2

    公开(公告)日:2011-08-02

    申请号:US12120009

    申请日:2008-05-13

    Abstract: The invention concerns a method to determine the composition of a fuel from the components ethanol and gasoline of an internal combustion engine, wherein the fuel is supplied to the internal combustion engine by a fuel supply unit and via two fuel distributor rails; and the exhaust gas is discharged from the internal combustion engine by two exhaust gas manifolds of a first and a second exhaust gas system, which are separated from each other, wherein the first and second exhaust gas system have in each case at least one exhaust gas probe and wherein current changes in the ethanol content of the fuel are evaluated from the signal differences of lambda signals from the exhaust gas probes. With this method, a change in the ethanol content of the fuel can be detected, and an explicit condition for a change in fuel can be derived. Moreover, with the method, errors in the fuel-mixture can be distinguished from an altered fuel composition, which takes place after the tank has been filled fueling.

    Abstract translation: 本发明涉及一种确定来自内燃机的乙醇和汽油组分的燃料组成的方法,其中燃料由燃料供应单元和经由两个燃料分配器轨道供应到内燃机; 并且废气通过彼此分离的第一和第二废气系统的两个废气歧管从内燃机排出,其中第一和第二废气系统在每种情况下都具有至少一个废气 探针,并且其中根据来自排气探针的λ信号的信号差来评估燃料的乙醇含量中的电流变化。 利用该方法,可以检测到燃料的乙醇含量的变化,并且可以得出燃料变化的明确条件。 此外,利用该方法,可以将燃料混合物中的误差与在罐加满燃料后发生的改变的燃料组成区分。

Patent Agency Ranking