-
1.发明授权Apparatus and method for driving a piezoelectrically controlled fuel injection valve 失效用于驱动压电式燃料喷射阀的装置和方法
公开(公告)号：US6109245A
公开(公告)日：2000-08-29
申请号：US401025
申请日：1999-09-21
CPC分类号： H02N2/067 , F02D41/062 , F02D41/2096 , F02D41/221
摘要： An apparatus for driving a piezoelectrically controlled fuel injection valve includes a piezoelectric actuator having a discharging device and preferably a power MOSFET switch connected in parallel therewith. The discharging device is turned on by a monitoring device that is likewise connected in parallel with the piezoelectric actuator if an opening time of the piezoelectric actuator exceeds a predetermined monitoring time. The discharging device and the monitoring device are constructed as an integrated circuit (ASIC) and are integrated in a valve housing. A method for operating the apparatus is also provided.
摘要翻译： 用于驱动压电控制的燃料喷射阀的装置包括具有放电装置的压电致动器，并且优选地与其并联连接的功率MOSFET开关。 如果压电致动器的打开时间超过预定的监视时间，则同样与压电致动器并联连接的监视装置将放电装置接通。 放电装置和监视装置构成集成电路（ASIC）并集成在阀壳体中。 还提供了一种操作该装置的方法。
-
2.发明授权Device and method for regulating the fuel pressure in a high-pressure accumulator 失效用于调节高压蓄能器中的燃料压力的装置和方法
公开(公告)号：US5941214A
公开(公告)日：1999-08-24
申请号：US5699
申请日：1998-01-12
CPC分类号： F02D41/3854 , F02D41/3845 , F02D41/3863 , F02M63/0225 , F02D2041/1409 , F02D2041/1418 , F02D2250/31
摘要： A device and a method are provided for regulating the fuel pressure in a high-pressure accumulator. A volumetric flow regulation and a pressure regulation combine the advantages of regulation of volumetric flow and regulation of pressure with one another and thus achieve increased dynamics and higher efficiency.
摘要翻译： 提供了一种用于调节高压蓄能器中的燃料压力的装置和方法。 体积流量调节和压力调节结合了体积流量调节和压力调节的优点，从而实现了增加的动力学和更高的效率。
-
3.发明授权Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine 有权驱动内燃机的燃料喷射阀的电容式致动器的方法公开(公告)号：US06491027B1
公开(公告)日：2002-12-10
申请号：US09668491
申请日：2000-09-25
IPC分类号： F02M5106
CPC分类号： F02D41/2096 , F02D41/008 , F02D2041/2031 , F02D2041/2051 , F02D2200/0602 , F02D2200/063
摘要： Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine for achieving a constant stroke of the actuator, in which the amounts of energy that are supplied to the actuator are determined in dependence on the fuel pressure acting on the actuator.
摘要翻译： 驱动用于实现致动器的恒定行程的内燃机的燃料喷射阀的电容式致动器的方法，其中供应到致动器的能量的量根据作用在致动器上的燃料压力来确定。
-
公开(公告)号：US06472796B1
公开(公告)日：2002-10-29
申请号：US09513623
申请日：2000-02-25
IPC分类号： H01L4108
CPC分类号： F02D41/2096 , F02D41/221 , H02N2/06 , H02N2/067
摘要： A method for controlling a capacitive actuator includes the steps of determining an energy applied to an actuator, measuring an actuator voltage present at the actuator, and inferring a functional state of the actuator by using the energy and the actuator voltage. A capacitive actuator is fed energy and the actuator voltage present at the actuator is measured. The energy and the comparison of the actuator voltage with reference values are used to infer a functional state, for example, either faults or correct function of the actuator or injection valve. Furthermore, the actuator voltage is used to infer an actuator stroke. The method is based on actuator characteristics. The invention also includes a circuit for controlling a capacitive actuator having a driving circuit with a main switch, a charging capacitor, a first series circuit including an oscillating coil, an auxiliary switch, and a second series circuit having a discharging switch, a charging switch, and a diode to be connected to the actuator, and a control device having a program and a family of characteristics with actuator characteristics defining characteristic curves, reference values, and correction factors.
摘要翻译： 用于控制电容式致动器的方法包括以下步骤：确定施加到致动器的能量，测量致动器处存在的致动器电压，以及通过使用能量和致动器电压来推断致动器的功能状态。 电容式致动器被馈送能量，并且测量致动器处存在的致动器电压。 使用致动器电压和参考值的能量和比较来推断功能状态，例如故障或致动器或喷射阀的正确功能。 此外，致动器电压用于推断致动器行程。 该方法基于执行器特性。 本发明还包括用于控制具有主开关的驱动电路的电容式致动器的电路，充电电容器，包括振荡线圈的第一串联电路，辅助开关和具有放电开关的第二串联电路，充电开关 以及要连接到致动器的二极管，以及具有程序和特征族的控制装置，具有定义特性曲线，参考值和校正因子的致动器特性。
-
5.发明授权公开(公告)号：US06441535B2
公开(公告)日：2002-08-27
申请号：US09761598
申请日：2001-01-16
申请人： Hellmut Freudenberg , Hartmut Gerken , Martin Hecker , Christian Hoffmann , Richard Pirkl , Günther Riedel
发明人： Hellmut Freudenberg , Hartmut Gerken , Martin Hecker , Christian Hoffmann , Richard Pirkl , Günther Riedel
IPC分类号： H01L4109
CPC分类号： F02D41/2096 , H02N2/067
摘要： A control element, in particular a piezoelectrically operated fuel injection valve in an internal combustion engine, is charged, in order to compensate for stochastic reactions in the internal combustion engine, with a constant nominal voltage applied to a series circuit that includes a charge capacitor and a charge reversal capacitor, and it is discharged into the charge reversal capacitor to a prescribed voltage value. The remaining residual charge of the control element is charged into the charge capacitor via a limiter path.
摘要翻译： 控制元件，特别是内燃机中的压电操作的燃料喷射阀被充电，以补偿内燃机中的随机反应，其中施加到包括充电电容器的串联电路的恒定标称电压，以及 电荷反转电容器，并将其放电到电荷反转电容器中达到规定的电压值。 控制元件的剩余电量通过限幅器通路充电到充电电容器中。
-
公开(公告)号：US06366868B2
公开(公告)日：2002-04-02
申请号：US09821968
申请日：2001-03-30
申请人： Hellmut Freudenberg , Hartmut Gerken , Martin Hecker , Christian Hoffmann , Richard Pirkl , Walter Schrod
发明人： Hellmut Freudenberg , Hartmut Gerken , Martin Hecker , Christian Hoffmann , Richard Pirkl , Walter Schrod
IPC分类号： H01L4104
CPC分类号： F02M65/00 , F02D41/2096 , F02D41/221 , F02D2041/2051 , F02D2041/2058 , F02D2041/2089 , F02D2041/2093 , F02M2200/21 , G01R31/2829 , H02N2/06 , Y10T307/747 , Y10T307/826
摘要： A method of diagnosing an actuator includes supplying a predeterminable amount of energy to an actuator through a charge-reversal circuit. Faulty functional statuses of the actuator and its supply lines and/or its drive circuits, short- or long-term interruptions, short-circuits within the actuator or its supply lines, or excessively low capacitance values may be deduced from a discrepancy between reference values and determined variables including actuator voltage, actuator current, and actuator charge. A short-circuit of an electrical connection within the actuator or an electrical connection between the drive circuit and the actuator can be deduced if the actuator voltage is less than a lower voltage value. An interruption in the electrical connection within is the actuator or an electrical connection between the drive circuit and the actuator may be deduced if an actuator peak current is less than a lower current value. An apparatus for performing the method is also provided.
摘要翻译： 诊断致动器的方法包括通过电荷反转电路向致动器提供预定量的能量。 执行机构及其供电线路和/或其驱动电路的功能状态不良，执行器或其供电线路中的短期或长期中断，短路或过低的电容值可能会从参考值 并确定变量，包括执行器电压，执行器电流和执行器充电。 如果执行器电压小于较低的电压值，则可以推导出致动器内的电气连接的短路或驱动电路与致动器之间的电气连接。 如果致动器峰值电流小于较低的电流值，那么内部电气连接的中断是致动器，或者可以推导出驱动电路和致动器之间的电气连接。 还提供了一种用于执行该方法的装置。
-
公开(公告)号：US06236190B1
公开(公告)日：2001-05-22
申请号：US09299367
申请日：1999-04-26
IPC分类号： H02J716
CPC分类号： F02D41/2096 , H02N2/06 , H02N2/067
摘要： A constant displacement ds of a capacitive actuator, for instance a capacitor for a fuel injection valve of an internal combustion engine, is obtained within a wide temperature range. While the actuator is being charged, its current and the voltage across the actuator are multiplied with one another. The product of the current and the voltage are integrated and the integration value is compared with a predetermined setpoint value. The process of charging is interrupted when the integration value reaches or exceeds the actual value. In an alternative embodiment, the actuator is charged from a constant current source and only the voltage drop is integrated.
摘要翻译： 电容式致动器的恒定位移ds，例如用于内燃机的燃料喷射阀的电容器在宽的温度范围内获得。 当执行器正在充电时，其电流和执行器两端的电压相互相乘。 积分电流和电压的乘积，并将积分值与预定的设定值进行比较。 当积分值达到或超过实际值时，充电过程中断。 在替代实施例中，致动器从恒定电流源充电，并且仅电压降被积分。
-
公开(公告)号：US06078198A
公开(公告)日：2000-06-20
申请号：US38639
申请日：1998-03-10
申请人： Hartmut Gerken , Ralf Forster , Martin Hecker , Richard Pirkl , Christian Hoffmann , Hellmut Freudenberg
发明人： Hartmut Gerken , Ralf Forster , Martin Hecker , Richard Pirkl , Christian Hoffmann , Hellmut Freudenberg
CPC分类号： H02N2/067 , F02D41/2096 , F02D41/3005 , F02D2041/2003 , F02D2041/2048
摘要： A power MOSFET switch is connected in parallel to a capacitive actuator for the purpose of protecting the actuator against over-voltage. The protective power MOSFET switch is rendered conductive by a supplemental circuit when the actuator voltage exceeds a predetermined threshold limit voltage or when the control circuit emits a corresponding signal.
摘要翻译： 功率MOSFET开关并联连接到电容式驱动器，用于保护执行器免受过电压的影响。 当执行器电压超过预定阈值极限电压时或当控制电路发出相应的信号时，保护功率MOSFET开关由补充电路导通。
-
公开(公告)号：US06271618B1
公开(公告)日：2001-08-07
申请号：US09408683
申请日：1999-09-30
IPC分类号： H01L4104
CPC分类号： F02D41/2467 , F02D41/2096 , H01L41/042 , H02N2/06 , H02N2/067
摘要： In a driving configuration for driving an actuator, component tolerances are compensated for by measuring a discharging current flowing in a measuring branch and the discharging voltage during a charge-transfer (reversing) operation. The measuring branch contains a series resonance circuit having a charging capacitor, a coil, an auxiliary switch and a measuring resistor. The current and voltage values measured at various instants are evaluated; and from them, initial parameters are determined for the subsequent driving operations.
摘要翻译： 在用于驱动致动器的驱动配置中，通过测量在测量分支中流动的放电电流和在电荷转移（反转）操作期间的放电电压来补偿元件公差。 测量分支包括具有充电电容器，线圈，辅助开关和测量电阻器的串联谐振电路。 评估在各时刻测量的电流和电压值; 并且由它们确定用于后续驾驶操作的初始参数。
-
公开(公告)号：US6121715A
公开(公告)日：2000-09-19
申请号：US335562
申请日：1999-06-18
CPC分类号： F02D41/2096 , H02N2/06 , H02N2/067
摘要： A capacitive control element is charged with a defined charging voltage Uc. From a stored mapping KF, the instantaneous control element capacitance Cp is determined from the charge voltage Uc and a control element voltage Up. In addition, energy E supplied to the control element is determined from the charge voltage Uc and the control element capacitance Cp. According to a deviation of energy E fed to the control element from a stipulated amount of energy Ev, the charge voltage Uc for a next drive process of the control element is regulated. The same process occurs for additional control elements.
摘要翻译： 电容性控制元件用定义的充电电压Uc充电。 从存储的映射KF中，根据充电电压Uc和控制元件电压Up确定瞬时控制元件电容Cp。 此外，从充电电压Uc和控制元件电容Cp确定提供给控制元件的能量E。 根据从规定的能量Ev供给到控制元件的能量E的偏差，调节控制元件的下一个驱动处理的充电电压Uc。 对于其他控制元素也会发生相同的过程。
-
-
-
-
-
-
-
-
-
搜索结果
109 条记录 (耗时 0.027 秒)
