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    • 83. 发明授权
    • System and method for reducing hydrocarbon emissions in a gasoline direct injection engine
    • 用于减少汽油直喷发动机中碳氢化合物排放的系统和方法
    • US08408176B2
    • 2013-04-02
    • US12351711
    • 2009-01-09
    • Ross Dykstra PursifullDaniel Dusa
    • Ross Dykstra PursifullDaniel Dusa
    • F02D41/06
    • F02D41/062F02D41/0002F02D41/008F02D41/1498F02D2200/1015F02N19/00
    • A method is described for starting an engine of a motor vehicle under varying temperature conditions. The method may include during a first, higher-temperature, starting condition, directly injecting fuel into all of the combustion chambers the initial fueled cycle comprising crankshaft rotations during which at least some fuel is injected for a first time since the engine was brought from rest. Further, during a second, lower-temperature, starting condition, the method includes directly injecting fuel into less than all of the combustion chambers during at least the initial fueled cycle of the engine. In this way, it is possible to prevent the engine's pump from being outstripped during cold-start conditions at low engine temperatures. Also, it may allow subsequently fueled cylinders to start at a higher engine speed and lower manifold air pressure than otherwise possible, thereby further reducing the need for overfueling.
    • 描述了用于在变化的温度条件下起动机动车辆的发动机的方法。 该方法可以包括在第一个较高温度的启动条件下,将燃料直接喷射到所有的燃烧室中,其中包括曲轴旋转的初始燃料循环,在此期间,至少一些燃料从发动机静止 。 此外,在第二个较低温度的启动条件下,该方法包括在发动机的至少初始燃料循环期间直接将燃料喷入少于所有的燃烧室。 以这种方式,可以在低发动机温度的冷启动条件期间防止发动机泵超出。 此外,它可以允许随后的燃料汽缸以比其他可能的更高的发动机转速和更低的歧管空气压力开始,从而进一步减少对过度燃油的需要。
    • 85. 发明授权
    • Device for operating an internal combustion engine
    • 用于操作内燃机的装置
    • US08347700B2
    • 2013-01-08
    • US12999712
    • 2009-10-22
    • Reza Azadeh
    • Reza Azadeh
    • G01M15/00
    • F02D41/008F02D41/1454F02D41/1495F02D41/222F02D2041/1416F02D2041/1433
    • An association unit is designed to determine cylinder-individual lambda signals on the basis of a lambda probe signal and to determine lambda deviation signals for the respective cylinders based on the lambda signals in relation to an averaged lambda signal. Furthermore, an observer has a sensor model of the lambda probe that is arranged in a feedback branch. The lambda deviation signals are fed to the input side and observer output quantities in relation to the respective cylinder are representative of the injection characteristics deviations from predetermined injection characteristics. A parameter detection unit impresses a predetermined interference pattern from cylinder-individual mixture deviations. It further changes at least one sensor model parameter as a detection parameter in response to the respectively predetermined interference pattern for as long as the observer output quantities represent the portion of the interference pattern associated with the cylinders thereof in a predetermined manner.
    • 关联单元被设计成基于λ探针信号来确定圆柱单独的λ信号,并且基于相对于平均的λ信号的λ信号来确定各个气缸的λ偏差信号。 此外,观察者具有布置在反馈分支中的λ探针的传感器模型。 λ偏差信号被馈送到输入侧,并且与各个气缸相关的观测器输出量代表与预定喷射特性的喷射特性偏差。 参数检测单元从气缸单独混合偏差给出预定的干涉图形。 只要观察者输出量以预定的方式表示与其圆柱体相关联的干涉图案的部分,则响应于预定的干涉图案进一步改变至少一个传感器模型参数作为检测参数。
    • 90. 发明授权
    • Method for operating an internal combustion engine with variable valve control
    • 用于控制可变阀门的内燃机的操作方法
    • US08161938B2
    • 2012-04-24
    • US12665863
    • 2008-06-11
    • Helge Frauenkron
    • Helge Frauenkron
    • F02D13/02
    • F02D41/0002F02D13/023F02D13/06F02D41/008F02D2041/001F02D2250/21Y02T10/18Y02T10/42
    • In a method for operating an internal combustion engine (10) having a plurality of combustion chambers (12), wherein the combustion chambers (12) make moment contributions during operation of the internal combustion engine (10) to the resulting engine moment of the internal combustion engine (10) and each combustion chamber (12) is assigned at least one inlet valve (14) which is actuated on the basis of a predefined valve lift cam which can be selected from a plurality of valve lift cams, the moment contribution of each combustion chamber (12) is selected, in the case of a valve lift switchover from a first valve lift cam to a second valve lift cam, for a following ignition cycle in such a way that a deviation of a sliding mean value of the moment contributions of all the combustion chambers (12) over a plurality of consecutive ignition cycles from a predefined moment setpoint value is minimized.
    • 在用于操作具有多个燃烧室(12)的内燃机(10)的方法中,其中所述燃烧室(12)在所述内燃机(10)的操作期间使所述内燃机 内燃机(10)和每个燃烧室(12)被分配至少一个入口阀(14),其基于可以从多个气门升程凸轮中选择的预定义的气门提升凸轮来致动, 在从第一气门升程凸轮到第二气门升程凸轮的气门升程切换的情况下,选择每个燃烧室(12),用于随后的点火循环,使得该时刻的滑动平均值的偏差 所有燃烧室(12)在预定的力矩设定值的多个连续点火循环中的贡献被最小化。