Method for determining the cylinder interior pressure of an internal combustion engine
    2.
    发明申请
    Method for determining the cylinder interior pressure of an internal combustion engine 有权
    用于确定内燃机的气缸内部压力的方法

    公开(公告)号:US20080105233A1

    公开(公告)日:2008-05-08

    申请号:US11983315

    申请日:2007-11-08

    IPC分类号: F02D41/00 G06G7/48

    摘要: A method for estimating the cylinder interior pressure of an internal combustion engine from a cylinder pressure model having at least the input variables load, speed of rotation, and crank angle (Ppressure model), which forms the cylinder interior pressure (Pgas) to be determined, corrected by a pressure correction value (ΔPgas). The pressure correction value (ΔPgas) is determined from an observation of the alternating moments at the crankshaft. The modeled value of the cylinder interior pressure from the pressure model is obtained as a pre-control value, and corrected with a correction value formed from the measured value of the non-uniformity of rotation.

    摘要翻译: 一种用于从具有至少输入变量负载,旋转速度和曲柄角度(P>压力模型))的气缸压力模型估计内燃机的气缸内部压力的方法,其形成气缸 需要确定的内部压力(P气体气体),通过压力校正值(ΔP气体)进行校正。 从曲轴上的交变力矩的观察来确定压力校正值(ΔP气体)。 获得来自压力模型的气缸内部压力的建模值作为预控制值,并且用由旋转的不均匀性的测量值形成的校正值进行校正。