公开(公告)号：US20070240685A1

公开(公告)日：2007-10-18

申请号：US10596480

申请日：2004-12-15

申请人： Jorg Beilharz ,  Maximillian Kronberger ,  Richard Pirkl ,  Sven Rebeschiess ,  Harald Schmidt ,  Hans-Jorg Wiegoff

发明人： Jorg Beilharz ,  Maximillian Kronberger ,  Richard Pirkl ,  Sven Rebeschiess ,  Harald Schmidt ,  Hans-Jorg Wiegoff

IPC分类号： F02M37/04

CPC分类号： F02D41/2096

摘要： A valve has a piezo actuator, a valve element, a valve body and a valve seat. At a predeterminable point in time, the valve element is controlled by a discharging process of the piezo actuator from a position in which it rests against the valve seat to a predetermined position located at a distance from the valve seat. The discharging process is divided into a first discharging period during which a predetermined first amount of electrical energy is discharged from the piezo actuator, a subsequent holding time period during which the piezo actuator is not controlled, and a subsequent second discharging period during which a predetermined second amount of electrical energy is discharged. The holding time duration and/or the first discharging period are/is adapted according to the course of a value that is not characteristic of the oscillation behavior of the piezo actuator during the holding time period.

摘要翻译： 阀具有压电致动器，阀元件，阀体和阀座。 在可预定的时间点，阀元件通过压电致动器从其位于阀座处的位置到位于距离阀座一定距离的预定位置的排放过程来控制。 放电处理被分为第一放电期间，在该第一放电期间，预定的第一电量从压电致动器排出，随后的压电致动器未被控制的保持期间，以及随后的第二放电期间， 第二量的电能被排出。 保持时间和/或第一放电周期根据在保持时间段期间不是压电致动器的振荡特性的值的过程而被适配。

公开(公告)号：US20080087748A1

公开(公告)日：2008-04-17

申请号：US11755018

申请日：2007-05-30

申请人： Jorg Beilharz ,  Nicholas Nozeran ,  Richard Pirkl ,  Christian Rissler ,  Harald Schmidt ,  Hans-Jorg Wiehoff

发明人： Jorg Beilharz ,  Nicholas Nozeran ,  Richard Pirkl ,  Christian Rissler ,  Harald Schmidt ,  Hans-Jorg Wiehoff

IPC分类号： F02M51/06

CPC分类号： F02D41/2096

摘要： A method for injecting a fluid, in particular a fuel, performs the following steps: A nozzle (1) which can be actuated by a piezo element (5) is provided. A current pulse (12a) is supplied to the piezo element (5). The capacity (16) of the piezo element (5) is recorded at the time when the current pulse (12a) is supplied. An actual characteristic curve of the injection is recorded based on the capacity (16). The current pulse (12a) is regulated in order to optimize the injection based on the actual characteristic curve of the injection.

摘要翻译： 一种用于喷射流体，特别是燃料的方法，进行以下步骤：可由压电元件（5）致动的喷嘴（1）。 电流脉冲（12a）被提供给压电元件（5）。 在提供电流脉冲（12a）时记录压电元件（5）的容量（16）。 基于容量记录注射的实际特性曲线（16）。 调节电流脉冲（12a），以便根据注射的实际特性曲线优化注射。

公开(公告)号：US20060289670A1

公开(公告)日：2006-12-28

申请号：US11453723

申请日：2006-06-15

申请人： Jorg Beilharz ,  Maximilian Kronberger ,  Richard Pirkl ,  Christian Ribler ,  Harald Schmidt ,  Hans-Jorg Wiehoff

发明人： Jorg Beilharz ,  Maximilian Kronberger ,  Richard Pirkl ,  Christian Ribler ,  Harald Schmidt ,  Hans-Jorg Wiehoff

IPC分类号： F02M47/02 ,  B05B1/08

CPC分类号： F02D41/2096 ,  F02D2041/1409 ,  F02D2200/0606

摘要： A valve has a piezoelectric actuator with a valve element, a valve body and a valve seat. In order to control the valve, the valve element is moved into the valve seat from a position remote from the valve seat by means of a charging process at a prescribable first time. A first value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the valve element meets the valve seat. A second value is determined being characteristic of the electrical power supplied to the piezoelectric actuator when the charging process of the piezoelectric actuator is concluded. An actual difference value between the second value and the first value is determined. A difference between a setpoint difference value and the actual difference value is supplied to a controller. An actuating signal for charging the piezoelectric actuator is determined as a function of the actuating variable.

摘要翻译： 阀具有带阀元件，阀体和阀座的压电致动器。 为了控制阀，阀元件可以通过第一次可规定的充电过程从远离阀座的位置移动到阀座中。 当阀元件与阀座相遇时，第一个值被确定为提供给压电致动器的电功率的特性。 当压电致动器的充电过程结束时，确定提供给压电致动器的电力的特性的第二值。 确定第二值与第一值之间的实际差值。 将设定值差值与实际差值之差提供给控制器。 作为致动变量的函数确定用于对压电致动器充电的致动信号。

公开(公告)号：US20070251492A1

公开(公告)日：2007-11-01

申请号：US11568367

申请日：2005-03-26

申请人： Jorg Beilharz ,  Sven Rebeschiess ,  Christian Rissler ,  Hans-Jorg Wiehoff

发明人： Jorg Beilharz ,  Sven Rebeschiess ,  Christian Rissler ,  Hans-Jorg Wiehoff

IPC分类号： F02D41/02

CPC分类号： F02D41/2096 ,  F02D2041/2051 ,  F02D2041/2055

摘要： In a method for determining the closure time for a valve, operated by a piezoelectric actuator, in order to record the closing time, the voltage at the piezoelectric actuator is recorded and the time is recorded at which the voltage has a maximum difference value from a comparison curve. The difference curve is generated between a start and an end point for a measured curve, having the voltage values applied to the piezoelectric actuator. A precise determination of the closing time can thus be carried out.

摘要翻译： 在用于确定由压电致动器操作的阀的关闭时间的方法中，为了记录关闭时间，记录压电致动器处的电压，并且记录电压具有最大差值的时间 比较曲线。 在具有施加到压电致动器的电压值的测量曲线的起点和终点之间产生差分曲线。 因此可以进行关闭时间的精确确定。