Method and device for adapting an injection characteristic curve
    1.
    发明授权
    Method and device for adapting an injection characteristic curve 有权
    适应注射特性曲线的方法和装置

    公开(公告)号:US08374770B2

    公开(公告)日:2013-02-12

    申请号:US12863730

    申请日:2008-11-19

    IPC分类号: F02M51/00 F02D41/34

    摘要: When the internal combustion engine is in an injection-free operating mode, a selected injector is open for injecting a small fuel amount, whereby at least one working cycle with injector control follows or precedes one cycle without control, a differential of two subsequent segment times of the cylinder associated with the selected injector or another variable, that reproduces a temporal crankshaft angle speed modification, is determined as a measurement value respectively for the cycle with and without control, and a relation is formed between the values of the cycles with or without control and used to correct the injection characteristic curve. The engine operates with active ignition and the value for the cycle with control is tested by taking into account ignition faults and the relation is only used to correct the curve if the value in the cycle with control significantly deviates from the one without control.

    摘要翻译: 当内燃机处于无注射操作模式时,所选择的喷射器打开以喷射小的燃料量,由此至少一个具有喷射器控制的工作循环在一个循环之前或之前没有控制,两个后续段时间的差 与所选择的喷射器相关联的气缸或再现时间曲轴角速度修正的另一个变量分别被确定为具有和不具有控制的循环的测量值,并且在具有或不具有控制的循环的值之间形成关系 控制并用于校正喷射特性曲线。 发动机主动点火运行,通过考虑点火故障来测试具有控制的循环值,只有当控制周期内的值显着偏离不受控制的控制时,该关系才用于校正曲线。

    Method and device for detecting the idle stroke of injectors
    2.
    发明申请
    Method and device for detecting the idle stroke of injectors 有权
    用于检测喷油器空转行程的方法和装置

    公开(公告)号:US20070204832A1

    公开(公告)日:2007-09-06

    申请号:US11685957

    申请日:2007-03-14

    IPC分类号: F02B77/08

    摘要: In a method and device for characterising the return stroke of injectors, in particular piezo-injectors of an internal combustion engine provided with a common rail system, when the internal combustion engine is switched off, a constant pressure is dropped in the rail, thereby making it possible to measure the rail pressure and to adjust the injectors by corresponding power. The actuating power is increased until a discontinuity in a temporal progression of rail pressure occurs. The actuating energy applied for said state and a pressure available in the make it possible to measure the return stroke of corresponding injector.

    摘要翻译: 在用于表征注射器的返回冲程的方法和装置中,特别是具有共轨系统的内燃机的压电喷射器,当内燃机关闭时,轨道中的压力恒定下降, 可以测量轨道压力并通过相应的功率调节喷油器。 致动功率增加,直到出现轨道压力的时间进行不连续。 对于所述状态施加的致动能量和可用的压力使得可以测量相应喷射器的返回行程。

    INTERNAL COMBUSTION ENGINE AND ASSOCIATED OPERATING METHOD
    3.
    发明申请
    INTERNAL COMBUSTION ENGINE AND ASSOCIATED OPERATING METHOD 有权
    内燃机及相关操作方法

    公开(公告)号:US20100037873A1

    公开(公告)日:2010-02-18

    申请号:US12302935

    申请日:2007-04-20

    IPC分类号: F02B47/08 F02D41/00

    摘要: In a method of operating an internal combustion engine having at least two combustion chambers, each combustion chamber contributes torque to the total torque of the internal combustion engine, and the internal combustion engine is designed in such a way that a quantity of exhaust gas can be recycled into combustion chambers. The method has the steps: (a) detecting the torque contributions of at least two combustion chambers, then (b) changing the quantity of exhaust gas recycled into the combustion chambers, the torque contribution of which has been detected in step (a), then (c) detecting the torque contributions of at least two combustion chambers, the torque contribution of which has been detected in step (a), then (d) determining the change in the torque contributions as a result of the change in the quantity of recycled exhaust gas, and then (e) outputting a signal as a function of the change in the torque contributions.

    摘要翻译: 在操作具有至少两个燃烧室的内燃机的方法中,每个燃烧室对内燃机的总扭矩提供扭矩,并且内燃机的设计使得排气量可以是 再循环进入燃烧室。 该方法具有以下步骤:(a)检测至少两个燃烧室的转矩贡献,然后(b)改变在步骤(a)中检测到的转矩贡献的再循环到燃烧室中的排气量, 然后(c)检测在步骤(a)中检测到的转矩贡献的至少两个燃烧室的转矩贡献,然后(d)确定扭矩贡献的变化是由于 再循环废气,然后(e)根据转矩贡献的变化输出信号。

    Method and device for detecting the idle stroke of injectors
    4.
    发明授权
    Method and device for detecting the idle stroke of injectors 有权
    用于检测喷油器空转行程的方法和装置

    公开(公告)号:US07406861B2

    公开(公告)日:2008-08-05

    申请号:US11685957

    申请日:2007-03-14

    IPC分类号: G01M15/00

    摘要: In a method and device for characterising the return stroke of injectors, in particular piezo-injectors of an internal combustion engine provided with a common rail system, when the internal combustion engine is switched off, a constant pressure is dropped in the rail, thereby making it possible to measure the rail pressure and to adjust the injectors by corresponding power. The actuating power is increased until a discontinuity in a temporal progression of rail pressure occurs. The actuating energy applied for the state and a pressure available in the make it possible to measure the return stroke of corresponding injector.

    摘要翻译: 在用于表征注射器的返回冲程的方法和装置中,特别是具有共轨系统的内燃机的压电喷射器,当内燃机关闭时,轨道中的压力恒定下降, 可以测量轨道压力并通过相应的功率调节喷油器。 致动功率增加,直到出现轨道压力的时间进行不连续。 为该状态施加的致动能量和可用的压力使得可以测量相应喷射器的返回行程。

    Injector calibration method for operating an internal combustion engine
    7.
    发明授权
    Injector calibration method for operating an internal combustion engine 有权
    用于操作内燃机的喷射器校准方法

    公开(公告)号:US07765054B2

    公开(公告)日:2010-07-27

    申请号:US12280944

    申请日:2007-05-25

    IPC分类号: B60T7/12 F02D1/00

    摘要: A method for operating an internal combustion engine has the steps: (a) during an overrun phase of the internal combustion engine, activating an injector of a first combustion chamber for a predetermined activation time τinj with a predetermined activation voltage Ui=1, (b) measuring a torque variation, (c) determining, from the torque variation, a fuel quantity mi=1 of the fuel injected by the injector during the activation time τinj, (d) varying the activation voltage to a value Ui+1 which differs from Ui, (e) repeating steps (a) to (d) with further incrementation of i until i has reached a preset value N or the internal combustion engine is no longer in the overrun phase, and (f) determining an injector characteristic value of the injector of the first combustion chamber from the fuel quantities m1, m2, . . . , mN and the activation voltages U1, U2, . . . , UN.

    摘要翻译: 一种用于操作内燃机的方法,具有以下步骤:(a)在内燃机的超越阶段期间,以预定的激活电压Ui = 1,(b)激活第一燃烧室的喷射器达预定的激活时间τinj (c)根据扭矩变化确定在激活时间τinj期间由喷射器喷射的燃料的燃料量mi = 1,(d)将激活电压改变为不同的值Ui + 1 (e)重复步骤(a)至(d),进一步增加i,直到达到预设值N或者内燃机不再处于超载阶段,并且(f)确定喷射器特性值 的燃料量m1,m2,...。 。 。 ,mN和激活电压U1,U2,...。 。 。 ,联合国。

    Method for controlling a high-pressure fuel pump
    8.
    发明授权
    Method for controlling a high-pressure fuel pump 有权
    控制高压燃油泵的方法

    公开(公告)号:US09217406B2

    公开(公告)日:2015-12-22

    申请号:US13000731

    申请日:2009-07-07

    摘要: An electrically controllable electromechanical inlet valve (2a) which is closed in the currentless state and is held in the closed state by the force of a spring (2b), an outlet valve (5a), and a displacement element (6), the inlet valve is operated in a self-controlling operating mode after a start command is present. In the self-controlling operating mode, the rail pressure is built without knowledge of the phase position of the displacement element. During the self-controlling operating mode, the phase position of the displacement element is determined. After the phase position of the piston or displacement element is determined, the inlet valve is switched over to a non-self-controlling operating mode.

    摘要翻译: 一种可电控制的机电入口阀(2a),其在无电流状态下关闭,并通过弹簧(2b),出口阀(5a)和位移元件(6)的力保持在关闭状态,入口 在启动命令存在之后,阀门以自控操作模式运行。 在自控操作模式下,不考虑位移元件的相位位置,就可以建立导轨压力。 在自控操作模式期间,确定位移元件的相位位置。 在确定活塞或位移元件的相位位置之后,将入口阀切换到非自控操作模式。