Method for the diagnosis of the voltage control for a piezoelectric actuator of an injection valve

    公开(公告)号:US06820474B2

    公开(公告)日:2004-11-23

    申请号:US10240338

    申请日:2003-07-01

    IPC分类号: G01M1500

    摘要: A method is proposed for diagnosing the drive voltage for a piezoelectric actuator of an injector, in which the drive voltage is measured for the individual phases of the injection procedure. With respect to each control phase, a corresponding tolerance band is provided, which is set using the setpoint value of the drive voltage. The tolerance ranges are established as a function of operating and/or environmental conditions. If, for the individual drive cycles, the corresponding tolerance ranges are not reached, then, in response to repeated measurement, these erroneous measurements are counted. When a preestablished number for the erroneous measurements is exceeded, then an ongoing error is diagnosed. If, after a certain time, the number is not exceeded, then the counter is reset. In the case of an error, the error storage unit can be reset using a maintenance plug-in device during maintenance.

    Method and apparatus for operating an injection system in an internal combustion engine
    4.
    发明授权
    Method and apparatus for operating an injection system in an internal combustion engine 失效
    用于在内燃机中操作喷射系统的方法和装置

    公开(公告)号:US07191051B2

    公开(公告)日:2007-03-13

    申请号:US10535643

    申请日:2003-11-04

    IPC分类号: B60T7/12 F02M51/00

    摘要: In a method and an apparatus for operating an injection system of an internal combustion engine, triggering of an injection actuator being performed on the basis of at least one state variable of the injection system, in order to enhance the quantitative accuracy with which fuel is metered provision is made that the at least one state variable is sensed and temporarily stored; the at least one injection actuator is triggered with a triggering pulse of definable pulse duration and definable initial pulse height; during the triggering of the at least one injection actuator, an injection detection is performed; the pulse height of the triggering pulse is incremented in definable steps, at the defined pulse duration, until an injection is detected; and when an injection is detected, the pulse height of the triggering pulse causing the injection is permanently stored as a function of the sensed state variable, and in future operation of the injection system is taken as the basis for triggering the at least one injection actuator.

    摘要翻译: 在用于操作内燃机的喷射系统的方法和装置中,基于喷射系统的至少一个状态变量来执行喷射致动器的触发,以便提高计量燃料的定量精度 规定所述至少一个状态变量被感测并暂时存储; 所述至少一个注射致动器由可定义的脉冲持续时间和可定义的初始脉冲高度的触发脉冲触发; 在触发至少一个注射致动器期间,执行注射检测; 在定义的脉冲持续时间内,触发脉冲的脉冲高度以可定义的步长递增,直到检测到注入; 并且当检测到注射时,引起注射的触发脉冲的脉冲高度作为感测状态变量的函数被永久存储,并且在将来注射系统的操作被作为触发至少一个注射致动器的基础 。

    Method of calculating the voltage setpoint of a piezoelectric element
    5.
    发明授权
    Method of calculating the voltage setpoint of a piezoelectric element 失效
    计算压电元件电压设定点的方法

    公开(公告)号:US06867531B2

    公开(公告)日:2005-03-15

    申请号:US10292112

    申请日:2002-11-11

    摘要: A method of calculating the voltage setpoint of a piezoelectric element as a function of a rail pressure is provided, in which a corrected voltage setpoint is formed by, among other adjustments, using a multiplier as a function of a temperature of the piezoelectric element. Additional adjustments for forming the corrected voltage setpoint includes adjusting the setpoint control voltage by multiplication by at least one correction value (multiplier) and/or by addition of at least one correction value (addend).

    摘要翻译: 提供了一种计算作为轨道压力的函数的压电元件的电压设定点的方法,其中通过使用乘法器作为压电元件的温度的函数形成校正的电压设定点。 用于形成校正电压设定点的附加调整包括通过乘以至少一个校正值(乘法器)和/或通过添加至少一个校正值(加数)来调整设定点控制电压。

    Method of charging and discharging a piezoelectric element
    6.
    发明授权
    Method of charging and discharging a piezoelectric element 失效
    压电元件充放电方法

    公开(公告)号:US06784596B2

    公开(公告)日:2004-08-31

    申请号:US10292864

    申请日:2002-11-08

    IPC分类号: H01L4109

    摘要: A method of charging or discharging a piezoelectric element, in which electric charge carriers are transported back and forth between a supply voltage of a direct voltage source and a piezoelectric element in order to transmit an elastic deflection of the piezoelectric element to an actuator. An actuating movement of the actuator is modified as a function of the level of a voltage being applied to the piezoelectric element, a reduction of the level of the applied voltage being compensated for by at least one additional transmission of electric charge carriers during a holding phase of the piezoelectric element.

    摘要翻译: 一种压电元件的充电或放电方法,其中电荷载体在直流电压源的电源电压和压电元件之间来回传输,以将压电元件的弹性偏转传递到致动器。 致动器的致动运动被修改为施加到压电元件的电压的水平的函数,所施加的电压的电平的降低在保持阶段期间由电荷载流子的至少一个额外的传输补偿 的压电元件。

    Method for operating a system
    8.
    发明授权
    Method for operating a system 有权
    操作系统的方法

    公开(公告)号:US08037353B2

    公开(公告)日:2011-10-11

    申请号:US11579231

    申请日:2005-05-11

    IPC分类号: G06F11/00

    CPC分类号: G05B19/0428

    摘要: A method for operating a system, as well as a computer program and a computer program product for executing the method. In the method for operating a system, which includes a plurality of control units, in the event that a special state exists for one of the control units, at least one of the other control units is informed about it.

    摘要翻译: 一种用于操作系统的方法,以及用于执行该方法的计算机程序和计算机程序产品。 在用于操作包括多个控制单元的系统的方法中,在对于一个控制单元存在特殊状态的情况下,通知其它控制单元中的至少一个。

    Method For Operating a System
    10.
    发明申请
    Method For Operating a System 有权
    操作系统的方法

    公开(公告)号:US20080215163A1

    公开(公告)日:2008-09-04

    申请号:US11579231

    申请日:2005-05-11

    IPC分类号: G05B11/01

    CPC分类号: G05B19/0428

    摘要: A method for operating a system, as well as a computer program and a computer program product for executing the method. In the method for operating a system, which includes a plurality of control units, in the event that a special state exists for one of the control units, at least one of the other control units is informed about it.

    摘要翻译: 一种用于操作系统的方法,以及用于执行该方法的计算机程序和计算机程序产品。 在用于操作包括多个控制单元的系统的方法中,在对于一个控制单元存在特殊状态的情况下,通知其它控制单元中的至少一个。