Method of specifying an injection-pressure setpoint value in an
accumulator injection system
    3.
    发明授权
    Method of specifying an injection-pressure setpoint value in an accumulator injection system 有权
    在蓄能器注射系统中指定注射压力设定点值的方法

    公开(公告)号:US6035829A

    公开(公告)日:2000-03-14

    申请号:US229927

    申请日:1999-01-13

    IPC分类号: F02D41/24 F02D41/38 F02M7/00

    摘要: An injection-pressure setpoint value for the pressure accumulator of an accumulator injection system is specified as a function of the operating point of the engine. The setpoint is specified with the aid of respectively separate characteristic diagrams for the start, idling and load engine operating states. In load operation, the profile of the injection-pressure setpoint value is additionally adapted to the particular requirements of the transient engine operation with a first timing element whose timing characteristics depend on the engine speed. The profile may be briefly raised out of a low engine speed in the case of an acceleration. With the aid of a downstream, second timing element which is independent of the first timing element, sudden transitions in the specification of the setpoint values when the engine operating state changes are suitably smoothed out. Any jumps in the injection-pressure setpoint value are avoided. The gear which has been engaged or the driving style of the driver can be taken into account in the transfer characteristics of the second timing element.

    摘要翻译: 蓄能器注入系统的蓄压器的注射压力设定值被指定为发动机的工作点的函数。 通过分别启动,空转和负载发动机运行状态的独立特性图来指定设定值。 在负载操作中,喷射压力设定值的轮廓额外地适应于具有取决于发动机转速的定时特性的第一定时元件的瞬态发动机运行的特定要求。 在加速的情况下,轮廓可以从低发动机转速中短暂地升高。 借助于独立于第一定时元件的下游的第二定时元件,适当地平滑发动机操作状态改变时在设定值的规格中的突然转变。 避免了喷射压力设定值的任何跳跃。 可以在第二定时元件的传送特性中考虑已经接合的齿轮或驾驶员的驾驶风格。

    Method for controlling an internal combustion engine
    5.
    发明授权
    Method for controlling an internal combustion engine 失效
    用于控制内燃机的方法

    公开(公告)号:US06386157B1

    公开(公告)日:2002-05-14

    申请号:US09787820

    申请日:2001-03-23

    IPC分类号: F01L904

    摘要: An internal combustion engine has a plurality of cylinders to which in each case at least one inlet valve and one outlet valve are assigned. A valve drive is assigned for controlling the inlet valve and a valve drive is assigned for controlling the outlet valve. The valve control time for the inlet valve of a cylinder is calculated at least one segment later than the valve control time for the outlet valve of the same cylinder. The segment is determined by the phase angle between the upper dead centers of two pistons of cylinders which follow one another directly in the ignition sequence.

    摘要翻译: 内燃机具有多个气缸,每个气缸中分配有至少一个入口阀和一个出口阀。 分配阀驱动器用于控制入口阀,并且分配阀驱动器用于控制出口阀。 气缸入口阀的阀门控制时间比同一气缸出口阀的阀门控制时间晚至少一段计算。 该段由在点火序列中直接相互追随的气缸的两个活塞的上死点之间的相位角确定。

    Method for the closed-loop control of a controlled system, in particular of an internal combustion engine
    7.
    发明授权
    Method for the closed-loop control of a controlled system, in particular of an internal combustion engine 失效
    控制系统,特别是内燃机的闭环控制方法

    公开(公告)号:US06226557B1

    公开(公告)日:2001-05-01

    申请号:US09124594

    申请日:1998-07-29

    IPC分类号: G05B1302

    摘要: A method for the closed-loop control of a nonlinear controlled system in which a state variable of the controlled system is determined and an actuating value is determined using a control method and a reference variable. In addition, by using the state variable of the controlled system, a correction value is read from a linearization characteristic curve and multiplied by the actuating value and the product is specified as new desired value for the controlled system. The linearization characteristic curve is chosen in such a way that multiplication of the linearization characteristic curve by the nonlinear control action of the controlled system yields a linear control action.

    摘要翻译: 一种用于非线性控制系统的闭环控制的方法,其中确定了受控系统的状态变量,并且使用控制方法和参考变量来确定致动值。 另外,通过使用受控系统的状态变量,从线性化特性曲线读取校正值并乘以致动值,并将产品指定为受控系统的新的期望值。 选择线性化特性曲线,使得通过受控系统的非线性控制动作的线性化特性曲线的乘积产生线性控制动作。

    Method for determining an operating parameter for starting an internal combustion engine
    8.
    发明授权
    Method for determining an operating parameter for starting an internal combustion engine 有权
    确定起动内燃机的运行参数的方法

    公开(公告)号:US06196190B1

    公开(公告)日:2001-03-06

    申请号:US09524231

    申请日:2000-03-13

    IPC分类号: F02D4106

    CPC分类号: F02D31/008 F02D41/062

    摘要: A method of starting an internal combustion engine having an injection system and characteristic variables includes the steps of supplying an injection system with an operating parameter that is determined from characteristic variables, supplying a speed regulator with an initialization value as an initial starting variable, and regulating a speed of an internal combustion engine up to an idling speed with the speed regulator based upon the initialization value. The acceleration to idling speed is carried out with the aid of the speed regulator based on the initialization value. The injection system is supplied with a mass of fuel to be injected. Regulation is carried out with a speed regulator already present in an engine controller. The initialization value is stored in a characteristic curve as a function of coolant temperature. The initialization value is applied to a first injection operation of the internal combustion engine.

    摘要翻译: 一种启动具有喷射系统和特征变量的内燃机的方法包括以下步骤:向喷射系统提供从特性变量确定的运行参数,向速度调节器提供初始化值作为初始起始变量,并调节 基于初始化值的速度调节器的内燃机的速度高达怠速。 借助于速度调节器,基于初始化值执行加速到空转速度。 注射系统被供给大量要注入的燃料。 发动机控制器中已经存在一个速度调节器来进行调节。 初始化值作为冷却剂温度的函数存储在特性曲线中。 初始化值被应用于内燃机的第一喷射操作。

    Method for regulating a smooth running of an internal combustion engine
    10.
    发明授权
    Method for regulating a smooth running of an internal combustion engine 有权
    调节内燃机平稳运行的方法

    公开(公告)号:US6085143A

    公开(公告)日:2000-07-04

    申请号:US158253

    申请日:1998-09-22

    摘要: A method for regulating the smooth running of a multicylinder internal combustion engine. An inverse linear path model estimates a characteristic process variable from state variables of the internal combustion engine, that is to say actual values, in particular engine speed, fuel quantity, operating temperature, charging pressure, etc. A desired value is compared with the actual value that is determined from state variables of the internal combustion engine by a measuring element. The actual value shows the rotational acceleration contribution of each cylinder. The difference between the actual value and the desired value is supplied to a controller that corrects the combustion in the individual cylinders in such a way that the actual value approaches the desired value. This ensures that the regulation for the smooth running of the engine takes effect both for stationary and non-stationary operating phases of the internal combustion engine.

    摘要翻译: 一种用于调节多缸内燃机的平稳运行的方法。 逆线性路径模型从内燃机的状态变量估计特征过程变量,即实际值,特别是发动机转速,燃料量,工作温度,充气压力等。将期望值与实际值进行比较 通过测量元件由内燃机的状态变量确定的值。 实际值表示每个气缸的旋转加速度贡献。 实际值和期望值之间的差异被提供给控制器,该控制器以实际值接近期望值的方式校正各个气缸中的燃烧。 这确保了用于发动机平稳运行的调节对于内燃机的静止和非静止运行阶段都是有效的。