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    • 83. 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。
    • 88. 发明申请
    • TORQUE ESTIMATING SYSTEM FOR INTERNAL COMBUSTION ENGINE
    • 内燃机扭矩估算系统
    • US20120004821A1
    • 2012-01-05
    • US13254699
    • 2010-02-26
    • Takeshi SanoYusuke SuzukiShinji Ikeda
    • Takeshi SanoYusuke SuzukiShinji Ikeda
    • F02D28/00
    • G01M15/11F02D35/023F02D41/008F02D2200/1004F02D2200/1012G01M15/08
    • A torque estimating system for an internal combustion engine including a plurality of cylinders is provided that is capable of accurately estimating torque for each cylinder.A cylinder pressure of a CPS-mounted cylinder #1 is acquired (step 100). Measured indicated torque Te1 resulting from an explosion in the CPS-mounted cylinder #1 is calculated based on the cylinder pressure (step 102). A first angular acceleration dω1/dt and a second angular acceleration dω2/dt are calculated (steps 104 to 106). Estimated indicated torque Te2 resulting from an explosion in a CPS-less cylinder #2 is calculated using the measured indicated torque Te1 of the CPS-mounted cylinder #1 and a difference value between the second angular acceleration dω2/dt and the first angular acceleration dω1/dt (step 108). If a cylinder pressure sensor is to be disposed in a plurality of cylinders, cylinders in which the CPS is disposed are set such that the number of cylinders in which the explosion takes place between the cylinders having the CPS is equal.
    • 提供一种用于包括多个气缸的内燃机的扭矩估计系统,其能够精确地估计每个气缸的扭矩。 获取安装有CPS的气缸#1的气缸压力(步骤100)。 基于气缸压力计算由CPS安装的气缸#1中的爆炸产生的测量的指示转矩Te1(步骤102)。 计算第一角加速度dω1/ dt和第二角加速度dω2/ dt(步骤104至106)。 使用CPS安装的气缸#1的测量指示转矩Te1和第二角加速度dω2/ dt与第一角加速度dω1之间的差值来计算由无CPS气缸#2中的爆炸产生的预计转矩Te2 / dt(步骤108)。 如果将气缸压力传感器设置在多个气缸中,则设置CPS的气缸被设定为使得在具有CPS的气缸之间发生爆炸的气缸数相等。
    • 90. 发明申请
    • Method and related system of dithering spark timing to prevent pre-ignition in internal combustion engine
    • 用于防止内燃机预点火的抖动火花正时方法及相关系统
    • US20110265761A1
    • 2011-11-03
    • US12799753
    • 2010-04-30
    • Manfred AmannTerrence F. Alger, II
    • Manfred AmannTerrence F. Alger, II
    • F02P5/04
    • F02P5/1522F02D35/027F02D41/008F02P5/04Y02T10/46
    • Methods of mitigating the occurrence of a low-speed pre-ignition event in a multi-cylinder internal combustion engine (10), the engine (10) having a computerized engine management control module (70) and an ignition timing module (66) controllable by the engine management control module (70). The computerized engine management module (70) monitors the operating conditions of the internal combustion engine (10) and at certain operating conditions dithers the ignition timing of at least one cylinder (20) of the engine (10) to induce light to medium SI engine knock temporarily. Due to the high temperature, high frequency pressure waves caused by SI engine knock, fuel and/or lubricant related deposits accumulated on combustion chamber components, i.e. top piston land crevices or piston crown, are consumed so that said deposits (60) cannot become a source of pre-ignition
    • 减轻多缸内燃机(10)中低速预燃事件发生的方法,具有计算机化发动机管理控制模块(70)的发动机(10)和可控制的点火正时模块(66) 由发动机管理控制模块(70)。 计算机化的发动机管理模块(70)监视内燃机(10)的运行状况,并且在某些操作条件下,使发动机(10)的至少一个气缸(20)的点火正时激发以将光引导至中等SI发动机 暂时敲门 由于高温,消耗了由SI发动机爆震引起的高频压力波,积聚在燃烧室部件上的燃料和/或润滑剂相关沉积物,即顶部活塞地面缝隙或活塞冠,因此所述沉积物(60)不能变成 预燃源