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    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine
    1.
    发明公开
    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine 有权
    用于驱动致动器elektrschen，尤其是电动燃料喷射阀的内燃机的控制电路

    公开(公告)号：EP1521284A3

    公开(公告)日：2009-04-15

    申请号：EP04023146.6

    申请日：2004-09-29

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Faggioli, Eugenio ,  Zenzon, Renato

    IPC分类号： H01H47/32 ,  F02D41/20 ,  H02M3/156

    CPC分类号： H01H47/325 ,  F02D41/20 ,  F02D2041/2013 ,  F02D2041/2027 ,  F02D2041/2058 ,  H01F7/1844 ,  H01F2007/1888 ,  H02M3/156

    摘要： The control circuit comprises:
    - a direct voltage source (1);
    - a chopper circuit (2) arranged between the source (1) and an electric actuator (3); and
    - an electronic control circuit (4) designed to apply to the chopper circuit (2) a command signal (CS) of the PWM type, with a predefined ON/OFF switching period (P) and a predetermined duty cycle, for a likewise predefined activation time (t i ), so as to produce a flow, within the electric actuator (3), of a correspondingly choppered current (I) having a nominal duration corresponding to the activation time (t i ).
    The control circuit is characterized in that the unit (4) is arranged to:
    - detect the last whole or complete switching period (P) included within the activation time (t i );
    - allocate in accordance with a predefined duty cycle the final interval (t f ) comprising said last complete switching period (P) and any subsequent fraction of a switching period (R) included within said activation time (t i ), and
    - correspondingly drive the chopper circuit (2) in this final interval (t f ).

    Electronic control unit, in particular for motor vehicles, with improved heat dissipation system
    2.
    发明公开
    Electronic control unit, in particular for motor vehicles, with improved heat dissipation system 有权
    Elekronische Steuereinheit mit einem verb dessertenWärmeabfuhrsystem，inbesonderefürKraftfahrzeuge

    公开(公告)号：EP1524893A1

    公开(公告)日：2005-04-20

    申请号：EP04023145.8

    申请日：2004-09-29

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Faggioli, Eugenio ,  Groppo, Riccardo

    IPC分类号： H05K7/20 ,  H05K3/36 ,  H01L25/16

    CPC分类号： H05K7/20472 ,  H01L23/5385 ,  H01L25/162 ,  H01L2224/16225 ,  H01L2224/48091 ,  H01L2224/48227 ,  H05K1/0306 ,  H05K1/141 ,  H05K3/325 ,  H05K3/3421 ,  H05K3/368 ,  H05K2201/0397 ,  H05K2201/10393 ,  H01L2924/00014

    摘要： The unit (1) comprises:

    a metal container (2), with a base plate or wall (2a) able to act as a heat dissipator;
    a printed-circuit motherboard (3), facing the base plate or wall (2a) and housing a plurality of electric/electronic components or devices (4a);
    an intermediate structure (5) including a support plate (6) arranged between the motherboard (3) and the base plate or wall (2a) and housing one or more electronic power components or devices (6a); and
    mechanical and electrical coupling means (10; 110) arranged between the support plate (6) of the intermediate structure (5) and the motherboard (3) and comprising electrically conducting and mechanically resilient members (10; 110), able to act as elements providing an electric connection between devices (4a) of the motherboard (3) and devices (6a) of the intermediate structure (5), and as spring-loaded elements tending to push the intermediate structure (5) towards the base plate or wall (2a).

    摘要翻译： 单元（1）包括：金属容器（2），具有能够用作散热器的基板或壁（2a）; 印刷电路母板（3），面向基板或壁（2a）并容纳多个电/电子部件或装置（4a）; 中间结构（5），包括布置在母板（3）和基板或壁（2a）之间的支撑板（6），并容纳一个或多个电子部件或装置（6a）; 以及布置在所述中间结构（5）的所述支撑板（6）和所述母板（3）之间并包括导电和机械弹性构件（10; 110）的机电耦合装置（10; 110） 在主板（3）的设备（4a）和中间结构（5）的设备（6a）之间提供电连接的元件以及倾向于将中间结构（5）推向基板或壁的弹簧加载元件 （2a）中。

    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine
    4.
    发明公开
    Control circuit for driving an electric actuator, in particular an electric fuel injector for an internal-combustion engine 有权
    用于驱动电动致动器，特别是电动燃料喷射阀的内燃机的控制电路

    公开(公告)号：EP1521284A2

    公开(公告)日：2005-04-06

    申请号：EP04023146.6

    申请日：2004-09-29

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Faggioli, Eugenio ,  Zenzon, Renato

    IPC分类号： H01H47/32 ,  F02D41/20 ,  H02M3/156

    CPC分类号： H01H47/325 ,  F02D41/20 ,  F02D2041/2013 ,  F02D2041/2027 ,  F02D2041/2058 ,  H01F7/1844 ,  H01F2007/1888 ,  H02M3/156

    摘要： The control circuit comprises:

    a direct voltage source (1);
    a chopper circuit (2) arranged between the source (1) and an electric actuator (3); and
    an electronic control circuit (4) designed to apply to the chopper circuit (2) a command signal (CS) of the PWM type, with a predefined ON/OFF switching period (P) and a predetermined duty cycle, for a likewise predefined activation time (t i ), so as to produce a flow, within the electric actuator (3), of a correspondingly choppered current (I) having a nominal duration corresponding to the activation time (t i ).

    The control circuit is characterized in that the unit (4) is arranged to:

    detect the last whole or complete switching period (P) included within the activation time (t i );
    allocate in accordance with a predefined duty cycle the final interval (t f ) comprising said last complete switching period (P) and any subsequent fraction of a switching period (R) included within said activation time (t i ), and
    correspondingly drive the chopper circuit (2) in this final interval (t f ).

    摘要翻译： 所述控制电路包括： - 一个直流电压源（1）; - 源极（1）之间，并电致动器（3）布置在斩波电路（2）; 和 - 在电子控制电路（4）设计成适用于斩波器电路（2）的PWM类型的命令信号（CS），与预定的ON / OFF切换周期（P）和预定占空因数，对于同样 预定义的激活时间（TI），以便产生一个流，电致动器（3）内，相应直升机将电流（I）的具有标称的持续时间对应于激活时间（TI）。 所述控制电路被在DASS模具单元（4），其特征被布置为： - 检测负载整个或完整的开关周期（P）包括在激活时间（t I）之内; - 分配在雅舞蹈具有预定占空比的最终间隔（TF）包括所述负载完整的开关周期（P）和一个开关周期（R）中的任何随后的级分包括在所述激活时间（TI）内，以及 - 相应地驱动所述斩波 电路（2）在该最终间隔（TF）。

    A self-compensating piezoelectric actuator for a control valve
    10.
    发明公开
    A self-compensating piezoelectric actuator for a control valve 有权
    塞尔伯斯坦压力容器公司

    公开(公告)号：EP1637728A1

    公开(公告)日：2006-03-22

    申请号：EP05110981.7

    申请日：2001-06-28

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Montuschi, Mario ,  Faggioli, Eugenio

    IPC分类号： F02M59/46 ,  F02M51/06 ,  F02M53/04 ,  F02M61/16 ,  H01L41/053 ,  F16K31/00 ,  F16K35/02

    CPC分类号： F02M63/0031 ,  F02D41/2096 ,  F02M51/0603 ,  F02M63/0026 ,  F02M63/0066 ,  F16K31/007 ,  H01L41/053

    摘要： An actuator device for a control valve is described and comprises a piezoelectric actuating member (12) for bringing about the movement of a closure member (30) of the valve between an open position and a closure position; the member (12) has a reference portion (20) for connection to a fixed portion (26) of the device and a free portion (24) for connection to the closure member (30), the free portion (24) being movable relative to the reference portion (20) as a result of mechanical deformations produced in the actuating member (12) by the piezoelectric effect.
    The reference portion (20) of the actuating member (12) is controllable selectively between a free condition in which it is movable relative to the fixed portion (26), and a condition in which it is locked in a reference position and is fixed firmly to the fixed portion (26) of the device by magnetic attraction.

    摘要翻译： 描述了用于控制阀的致动器装置，并且包括用于使阀的关闭构件（30）在打开位置和关闭位置之间移动的压电致动构件（12） 所述构件（12）具有用于连接到所述装置的固定部分（26）的参考部分（20）和用于连接到所述封闭构件（30）的自由部分（24），所述自由部分（24）可移动相对 作为通过压电效应在致动构件（12）中产生的机械变形的结果，到参考部分（20）。 致动构件（12）的参考部分（20）可选择性地在相对于固定部分（26）可移动的自由状态之间进行控制，以及将其锁定在参考位置并被牢固地固定的状态 通过磁吸引到装置的固定部分（26）。