公开(公告)号：US06772735B2

公开(公告)日：2004-08-10

申请号：US10088581

申请日：2002-07-24

申请人： Juergen Boss ,  Klaus Zimmermann ,  Andreas Hoyler

发明人： Juergen Boss ,  Klaus Zimmermann ,  Andreas Hoyler

IPC分类号： F02M4100

CPC分类号： F02M45/06 ,  F02D41/2096 ,  F02D41/40 ,  F02M45/12 ,  F02M57/02 ,  F02M57/023 ,  F02M59/365 ,  F02M59/366 ,  F02M59/46 ,  F02M59/468 ,  Y02T10/44

摘要： A method for controlling an injector is described, where the trigger signal for the actuator is controlled as function of the amplitude and the duration. The actuator, using an hydraulic coupler, actuates a control valve which, at a low voltage, operates in a ballistic mode and opens up an opening cross-section to an inlet channel. The opening cross-section becomes smaller with increasing trigger voltage, and the fuel quantity to one injected increases. The control valve is brought from ballistic mode to nonballistic mode via the amplitude and duration of the trigger voltage. The delivery duration and the amplitude of the trigger voltage are tuned to each other so that one or several jumps may occur, during which a switch is made from one voltage value to another voltage value, and from one delivery duration to another delivery injection. A piezoelectric element is preferably used as an actuator.

摘要翻译： 描述了用于控制喷射器的方法，其中致动器的触发信号被控制为幅度和持续时间的函数。 使用液压联动器的致动器致动控制阀，该控制阀在低电压下以弹道模式操作并且向入口通道打开开口横截面。 随着触发电压的增加，开口横截面变小，一次喷射的燃料量增加。 控制阀通过触发电压的幅度和持续时间从弹道模式转为非球形模式。 触发电压的传送持续时间和振幅彼此调谐，使得可能发生一个或多个跳变，在此期间，从一个电压值到另一个电压值，以及从一个传送持续时间到另一个传送注入。 优选使用压电元件作为致动器。

公开(公告)号：US06807950B2

公开(公告)日：2004-10-26

申请号：US10432374

申请日：2003-11-19

申请人： Juergen Boss ,  Johannes-Joerg Rueger ,  Klaus Zimmerman

发明人： Juergen Boss ,  Johannes-Joerg Rueger ,  Klaus Zimmerman

IPC分类号： F02M3704

CPC分类号： F02D41/2096 ,  F02D2041/2055 ,  F02M57/023 ,  F02M59/366 ,  F02M59/468 ,  F02M65/00

摘要： A fuel injection system having a fuel injection valve in which an injection valve member is urged in an opening direction counter to a closing force by pressure in a pressure chamber which generated by a high-pressure fuel pump driven by a cam. A control valve is actuated by a piezoelectric actuator triggered by an electric control unit by which a communication of the pressure chamber with a relief chamber is controlled. When the control valve is closed, the pressure chamber is disconnected from the relief chamber. The control valve has a control valve member coupled with the actuator via a hydraulic coupler. The actuator, after a charging phase, communicates with an associated voltage meter, and the voltage between the electrical terminals of the actuator is monitored for detecting the function of the control valve.

摘要翻译： 一种具有燃料喷射阀的燃料喷射系统，其中喷射阀构件在与由凸轮驱动的高压燃料泵产生的压力室中的压力相反的打开方向上被推压。 控制阀由电控单元触发的压电致动器致动，通过该控制单元控制压力室与释放室的连通。 当控制阀关闭时，压力室与释放室断开。 控制阀具有通过液压耦合器与致动器连接的控制阀构件。 致动器在充电阶段之后与相关联的电压表通信，并且监视致动器的电端子之间的电压以检测控制阀的功能。