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    • 7. 发明申请
    • METHOD FOR COMPENSATING FOR GAS EXCHANGE LOSSES BETWEEN COMBUSTION CHAMBERS OF AN OTTO ENGINE
    • 用于补偿OTTO发动机燃烧室之间的气体交换损失的方法
    • US20110041787A1
    • 2011-02-24
    • US12859074
    • 2010-08-18
    • Axel LoefflerWolfgang FischerRoland KarrelmeyerGerald Graf
    • Axel LoefflerWolfgang FischerRoland KarrelmeyerGerald Graf
    • F01L1/34G05D7/00
    • F02D13/0246F02D35/023F02D41/0085F02D41/3035F02D2041/001Y02T10/128Y02T10/18
    • A method is presented for compensating for combustion chamber-specific actual values of a parameter, which characterizes combustions, between a plurality of combustion chambers of an Otto engine (10) operated with homogeneous filling of the combustion chambers and homogeneous charge compression ignition, said Otto engine (10) operating with a direct fuel injection and a variable valve drive, wherein the combustion chamber-specific actual values are formed as a function of signals (S—40; S—42) of combustion chamber-specific sensors (40; 42) and wherein deviations of the combustion chamber-specific actual values from a set value are processed to manipulated variables, with which a valve lift of a gas exchange valve (28) of a combustion chamber (12) is changed. The method distinguishes itself by the fact that a characteristic (pmi_ZV), in which combustion chamber-specific charge change losses are reflected, is formed as a variable characterizing combustions and by the fact that a valve lift of an intake valve (28) of the combustion chamber (12) is changed as a manipulated variable. Independent claims relate in each case to a control unit, a computer program and a computer program product.
    • 所提供的方法用于补偿燃烧室特定实际值,其特征在于表征燃烧的奥托发动机(10)的多个燃烧室与燃烧室的均匀填充和均质充气压缩点火之间,所述奥托 发动机(10),其通过直接燃料喷射和可变气门驱动器操作,其中所述燃烧室特定的实际值作为燃烧室专用传感器(40; 42)的信号(S-40; S-42)的函数形成 ),并且其中燃烧室特定实际值与设定值的偏差被处理为操纵变量,燃烧室(12)的气体交换阀(28)的气门升程改变。 该方法通过以下事实来区分:其中反映了燃烧室特定电荷变化损失的特性(pmi_ZV)被形成为可变特征燃烧,并且由于以下事实,即,进气阀(28)的气门升程 燃烧室(12)作为操作变量而改变。 独立权利要求在每种情况下涉及控制单元,计算机程序和计算机程序产品。