Method for operating an internal combustion engine
    1.
    发明申请
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US20080215227A1

    公开(公告)日:2008-09-04

    申请号:US11983354

    申请日:2007-11-08

    IPC分类号: F02D41/30 F02B17/00

    摘要: A method for operating an internal combustion engine having a combustion method with homogeneous auto ignition. A driver's demand, predetermined by the gas pedal, is converted into a desired torque to be given off by the engine. A reference filling value for the air filling is determined by a working-point-dependent lambda value (λopt) that can be predetermined. Based on this, a throttle valve position is set. Parallel to this, a desired torque is calculated for the fuel path with a reference lambda value, and an actual filling is calculated to yield a fuel amount to be injected. The reference lambda value results from an optimal lambda value for the mode of operation of homogeneous compression ignition, as long as the lambda value is within the rich and lean limits, respectively, of the combustion method of homogeneous compression ignition. The fuel mass is varied within the rich and lean limits to compensate dynamic processes.

    摘要翻译: 一种用于操作具有均匀自动点火的燃烧方法的内燃机的方法。 由加油踏板预先确定的驾驶员的要求被转换成由发动机发出的期望扭矩。 空气填充的参考填充值由可以预先确定的工作点依赖的λ值(λ)来确定。 基于此,设置节气门位置。 与此同时,对于具有参考λ值的燃料路径计算期望的扭矩,并计算实际填充量以产生要喷射的燃料量。 参考λ值来自均匀压缩点火操作模式的最佳λ值,只要λ值分别在均匀压缩点火的燃烧方法的浓度和极限范围内。 燃料质量在丰富和贫乏的范围内变化,以补偿动态过程。

    Method for operating an internal combustion engine
    2.
    发明授权
    Method for operating an internal combustion engine 有权
    操作内燃机的方法

    公开(公告)号:US07805237B2

    公开(公告)日:2010-09-28

    申请号:US11983354

    申请日:2007-11-08

    IPC分类号: G05D1/00

    摘要: A method for operating an internal combustion engine having a combustion method with homogeneous auto ignition. A driver's demand, predetermined by the gas pedal, is converted into a desired torque to be given off by the engine. A reference charge value for the air charge is determined by a working-point-dependent lambda value (λopt) that can be predetermined. Based on this, a throttle valve position is set. Parallel to this, a desired torque is calculated for the fuel path with a reference lambda value, and an actual charge is calculated to yield a fuel amount to be injected. The reference lambda value results from an optimal lambda value for the mode of operation of homogeneous compression ignition, as long as the lambda value is within the rich and lean limits, respectively, of the combustion method of homogeneous compression ignition. The fuel mass is varied within the rich and lean limits to compensate dynamic processes.

    摘要翻译: 一种用于操作具有均匀自动点火的燃烧方法的内燃机的方法。 由加油踏板预先确定的驾驶员的要求被转换成由发动机发出的期望扭矩。 空气充电的参考电荷值由可以预定的工作点相关的λ值(λopt)确定。 基于此,设置节气门位置。 与此同时,对于具有参考λ值的燃料路径计算期望的扭矩,并且计算实际电荷以产生要喷射的燃料量。 参考λ值来自均匀压缩点火操作模式的最佳λ值,只要λ值分别在均匀压缩点火的燃烧方法的浓度和极限范围内。 燃料质量在丰富和贫乏的范围内变化,以补偿动态过程。

    Method for switching the modes of operation for an internal combustion engine
    3.
    发明申请
    Method for switching the modes of operation for an internal combustion engine 审中-公开
    用于切换内燃机的操作模式的方法

    公开(公告)号:US20080105232A1

    公开(公告)日:2008-05-08

    申请号:US11983314

    申请日:2007-11-08

    IPC分类号: F02B17/00

    摘要: A method for switching the modes of operation of an internal combustion engine switches between a method of homogeneous compression ignition and a conventional combustion method. The operating ranges of the modes of operation are defined at least by way of speed of rotation and load, and a switch between the operating ranges takes place as a function of the current operating point and of quantifiable characteristics of the trajectory as well as of the distance of the current operating point from the range limit of the operating range. Characteristics of the trajectory are the current movement direction and/or the speed of approach of the operating point to the range limit.

    摘要翻译: 用于切换内燃机的操作模式的方法在均压式点火方法和常规燃烧方法之间切换。 操作模式的操作范围至少通过旋转速度和负载来定义,并且操作范围之间的切换作为当前操作点和轨迹的可量化特征以及 当前工作点的距离与工作范围的范围限制。 轨迹的特征是当前运动方向和/或操作点接近范围极限的速度。

    Method for determining the cylinder interior pressure of an internal combustion engine
    7.
    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。