Method for cylinder equalization in an internal combustion engine operating by direct injection
    21.
    发明授权
    Method for cylinder equalization in an internal combustion engine operating by direct injection 失效
    通过直接喷射操作的内燃机中的气缸均衡方法

    公开(公告)号:US06302083B1

    公开(公告)日:2001-10-16

    申请号:US09677562

    申请日:2000-10-02

    IPC分类号: F02D4140

    CPC分类号: F02D41/1498 F02D2200/1015

    摘要: The values for the speed of the crankshaft are corrected by means of an acausal mean-value filter, and the change in the kinetic energy of the crankshaft in the expansion interval of a cylinder is calculated from the dynamically corrected speed values and referred to the maximum fuel quantity which can be fed in this interval. The dimensionless residue obtained therefrom represents for the cylinder under consideration a measure of too much or too little injected fuel. Correction terms are derived from the calculated residues for the injection times of the individual cylinders. This renders adaptation possible in the overall region of the characteristic diagram, in particular also in the case of speed transitions.

    摘要翻译: 曲轴的速度值通过绝对平均值滤波器进行校正,并且根据动态校正的速度值计算曲轴在气缸膨胀间隔中的动能的变化,并且被称为最大值 可以在该间隔内供给的燃料量。 由此获得的无量纲残余物表示考虑到的气缸的喷射燃料太多或太少的量度。 修正术语来自各个气缸的注射时间的计算残差。 这使得可以在特性图的整个区域中实现适配,特别是在速度转换的情况下。

    Method for controlling the fuel injection in an internal combustion
engine
    23.
    发明授权
    Method for controlling the fuel injection in an internal combustion engine 有权
    用于控制内燃机中的燃料喷射的方法

    公开(公告)号:US6092510A

    公开(公告)日:2000-07-25

    申请号:US153210

    申请日:1998-09-15

    IPC分类号: F02D11/10 F02D41/34 F02M51/00

    摘要: A method for controlling an injection of fuel in an internal combustion engine in which steady-state optimum injection parameters, in particular the start-of-injection angle, is corrected for non-steady-state operating phases. The correction is carried out by a transmission element to which the driver's request is fed as an input and correction parameters are determined therefrom. Using the correction parameters, fuel injection parameters obtained from a characteristic diagram that is optimum for steady-state operating conditions are corrected. In this manner, the behavior of the internal combustion engine is improved for non-steady-state operating phases.

    摘要翻译: 一种用于控制内燃机中的燃料喷射的方法,其中稳态最佳喷射参数,特别是喷射开始角度,在非稳态运行阶段被校正。 该校正由作为输入的驾驶员请求被送达的传动元件进行,并且由此确定校正参数。 使用校正参数,校正从稳态运行条件最佳的特征图获得的燃料喷射参数。 以这种方式,对于非稳态运行阶段,内燃机的性能得到改善。

    Method for the closed-loop control of the boost pressure of a
turbocharged internal combustion engine
    24.
    发明授权
    Method for the closed-loop control of the boost pressure of a turbocharged internal combustion engine 失效
    用于涡轮增压内燃机的增压压力的闭环控制的方法

    公开(公告)号:US6067799A

    公开(公告)日:2000-05-30

    申请号:US220235

    申请日:1998-12-23

    IPC分类号: F02D41/00 F02D23/00

    CPC分类号: F02D41/0007 Y02T10/144

    摘要: The boost pressure in a turbocharged internal combustion engine is regulated by closed-loop control. A current performance graph value u(k), corresponding to a desired boost pressure, is determined from a speed/load-dependent performance graph. After that, the current performance graph value u(k) is compared with a previous performance graph value u(k-1). If the current performance graph value u(k) is greater than or equal to the previous performance graph value u(k-1), then the current performance graph value u(k) is transmitted as the process parameter x(k). Conversely, if the current performance graph value u(k) is less than the previous performance graph value u(k-1), then the current performance graph value u(k) is filtered by a PT.sub.2 member after an idle time elapses and is transmitted as the process parameter x(k).

    摘要翻译: 涡轮增压内燃机的增压压力由闭环控制来调节。 根据速度/负载相关的性能图确定对应于期望的增压压力的当前性能图值u(k)。 之后,将当前性能图值u(k)与先前的性能图值u(k-1)进行比较。 如果当前性能图值u(k)大于或等于先前的性能曲线图值u(k-1),那么当前的性能图值u(k)被作为过程参数x(k)被发送。 相反,如果当前的性能图值u(k)小于先前的性能图值u(k-1),那么在空闲时间过去之后,当前性能图值u(k)被PT2成员过滤,并且是 作为过程参数x(k)发送。

    Device for controlling an internal combustion engine
    25.
    发明授权
    Device for controlling an internal combustion engine 失效
    用于控制内燃机的装置

    公开(公告)号:US6058708A

    公开(公告)日:2000-05-09

    申请号:US124621

    申请日:1998-07-29

    摘要: An internal combustion engine has a pressure sensor for a charging pressure, an air mass flow rate meter for an air mass flow and a charging device with which a bypass valve in a bypass pipe or an actuator for varying the geometry of a turbine are associated. A cascaded control device for controlling the internal combustion engine includes a first controller having a controlled variable that is the charging pressure and a manipulated variable which is the air mass flow, as well as a second controller having a controlled variable that is the air mass flow and a manipulated variable which is the degree of opening of the bypass valve.

    摘要翻译: 内燃机具有用于充气压力的压力传感器,用于空气质量流量的空气质量流量计和用于改变涡轮几何形状的旁通管或致动器中的旁通阀的充气装置。 用于控制内燃机的级联控制装置包括具有作为充气压力的受控变量和作为空气质量流量的操作变量的第一控制器以及具有作为空气质量流量的受控变量的第二控制器 以及作为旁通阀的打开程度的操作变量。