公开(公告)号：US09188101B2

公开(公告)日：2015-11-17

申请号：US13845234

申请日：2013-03-18

Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Inventor： Norihisa Sakakibara

IPC: F02N11/00 ,  H02P9/04 ,  F02N11/04 ,  F02N11/08 ,  F02N99/00 ,  B60R16/03 ,  F02N11/10 ,  F02D41/20

CPC classification number: F02N11/087 ,  B60R16/03 ,  F02D2041/201 ,  F02D2041/2058 ,  F02N11/0814 ,  F02N11/10 ,  F02N2011/0874 ,  F02N2250/02 ,  Y02T10/48

Abstract: A power circuit includes a boost circuit having a boost switching element, a coil provided between a battery and the boost switching element and a rectifier element provided between the coil and a load, a first switch connected to the boost circuit in parallel, a current detection circuit detecting current flowing through the first switch and a control circuit turning on the first switch during a normal state other than a restart of an engine after an idling stop and turning off the first switch and controlling an operation of the boost switching element at a restart of the engine after an idling stop so that voltage of the battery is boosted and supplied to the load. The control circuit determines based on the current detected by the current detection circuit during the normal state whether or not the first switch has an open fault.

Abstract translation: 电源电路包括具有升压开关元件的升压电路，设置在电池和升压开关元件之间的线圈以及设置在线圈与负载之间的整流元件，与升压电路并联连接的第一开关，电流检测 电流检测电流流过第一开关，以及控制电路在正常状态之后正常状态下接通第一开关，而不是在怠速停止后关闭发动机并且关闭第一开关并且在重启时控制升压开关元件的操作 在怠速停止之后，电池的电压被升压并提供给负载。 控制电路基于在正常状态期间由电流检测电路检测到的电流来确定第一开关是否具有开路故障。

公开(公告)号：US20140117882A1

公开(公告)日：2014-05-01

申请号：US13934811

申请日：2013-07-03

Applicant: NATIONAL INSTRUMENTS CORPORATION

Inventor： Matthew Viele

IPC: H02P25/02

CPC classification number: H02P25/027 ,  F02D41/20 ,  F02D41/2096 ,  F02D2041/2006 ,  F02D2041/201 ,  F02D2041/2072 ,  F02M51/005 ,  H02P25/032

Abstract: An engine system may include a specified number of individual injectors, and an engine control unit (ECU) having a specified number of pins coupling to the individual injectors. The ECU may include a controller capable of dynamically switching between different multiplexing configurations, with each multiplexing configuration coupling individual injectors across corresponding pairs of pins. Each pin may internally couple to one half of an H-bridge structure, with an injector coupled across two pins thereby completing a full H-bridge structure, providing the flexibility to achieve combined solenoid and Piezo injection control. Specifically, each pin may be internally coupled to a low-side switch and a set of high-side switches, and the switches may be operated according to the dynamically selected multiplexing configuration and the type of injection control to perform any one or more of unipolar solenoid, unipolar Piezo, bipolar solenoid, and bipolar Piezo injection control, depending on the injector type used.

Abstract translation: 发动机系统可以包括指定数量的单个喷射器，以及具有联接到各个喷射器的指定数量的销的发动机控制单元（ECU）。 ECU可以包括能够在不同的多路复用配置之间动态切换的控制器，每个复用配置将各个注入器跨过相应的引脚对耦合。 每个引脚可以内部耦合到H桥结构的一半，一个注射器连接在两个引脚上，从而完成一个完整的H桥结构，提供实现组合螺线管和压电注入控制的灵活性。 具体地，每个引脚可以内部耦合到低侧开关和一组高侧开关，并且可以根据动态选择的多路复用配置和注入控制的类型来操作开关，以执行任何一个或多个单极 螺线管，单极压电，双极电磁阀和双极压电注射控制，取决于所使用的喷射器类型。

公开(公告)号：US20130104856A1

公开(公告)日：2013-05-02

申请号：US13700009

申请日：2011-05-26

Applicant: Takao Fukuda ,  Hideyuki Sakamoto

Inventor： Takao Fukuda ,  Hideyuki Sakamoto

IPC: F02D41/32

CPC classification number: F02D41/32 ,  F02D41/20 ,  F02D41/38 ,  F02D2041/2006 ,  F02D2041/201

Abstract: A fuel injection control system for an internal combustion engine includes a plurality of first energy storage elements each for supplying a high voltage to a fuel injection solenoid valve, boosting circuits each for boosting a battery voltage and electrically charging one of the first energy storage elements, a second energy storage element for accumulating electrical energy of the battery voltage, and a switching circuit for transferring the electrical energy between the plurality of first energy storage elements via the second energy storage element. This configuration enables the fuel injection control system for an internal combustion engine to implement stabilized supply of a fuel by obtaining within a short time the high voltage needed to operate the fuel injector both accurately and reliably, and to contribute to cost reduction by, for example, alleviating capability requirements and part performance requirements of the individual boosting circuits.

Abstract translation: 一种用于内燃机的燃料喷射控制系统包括：多个第一能量存储元件，每个第一能量存储元件用于向燃料喷射电磁阀提供高电压;升压电路，每个升压电路用于升压电池电压并对第一能量存储元件中的一个进行充电， 用于累积电池电压的电能的第二能量存储元件，以及用于经由第二能量存储元件在多个第一能量存储元件之间传递电能的切换电路。 这种构造使得内燃机的燃料喷射控制系统能够通过在短时间内获得准确可靠地操作燃料喷射器所需的高电压并且通过例如降低成本来有助于降低成本来实现燃料的稳定供应 ，减轻各个升压电路的能力要求和部件性能要求。

公开(公告)号：US20090183714A1

公开(公告)日：2009-07-23

申请号：US11869447

申请日：2007-10-09

Applicant: Takuya MAYUZUMI

Inventor： Takuya MAYUZUMI

IPC: F02M51/00

CPC classification number: F02D41/20 ,  F02D2041/2003 ,  F02D2041/2006 ,  F02D2041/201 ,  H02M1/32

Abstract: In a voltage boost circuit for driving a fuel injector of an internal combustion engine, a high voltage developed in the voltage boost coil will be discharged into the battery power supply through the boost coil by electrically energizing a discharge switching element provided in parallel to the charging diode. If the overboost compensation overlaps a boost execution period, the end of the boost execution period will await starting of the overboost compensation.

Abstract translation: 在用于驱动内燃机的燃料喷射器的升压电路中，在升压线圈中产生的高电压将通过对与该充电器并联设置的放电开关元件进行供电而通过升压线圈而放电到电池电源 二极管。 如果过载补偿与升压执行周期重叠，则升压执行周期的结束将等待启动过压补偿。

公开(公告)号：US20050057119A1

公开(公告)日：2005-03-17

申请号：US10891623

申请日：2004-07-15

Applicant: Paolo Reggio

Inventor： Paolo Reggio

IPC: H02M3/155 ,  F02D41/20 ,  H01L41/04 ,  H02M3/156 ,  H02N2/00

CPC classification number: H02M3/156 ,  F02D41/2096 ,  F02D2041/2003 ,  F02D2041/201 ,  F02D2041/2075 ,  F02D2041/2079 ,  H01L41/042

Abstract: There is described a voltage booster circuit for powering a piezoelectric actuator of an injector, and having a first and a second input terminal supplied with an input voltage; a first and a second output terminal supplying an output voltage greater than the input voltage, the second input terminal and second output terminal being connected to each other over a common line; a first and a second inductor coupled magnetically and connected in series between the first input terminal and the first output terminal; a capacitor connected between the first output terminal and the second output terminal; and a controlled switch connected between the intermediate node between the first and second inductor, and the second input terminal and second output terminal, and which switches between a closed operating state, to permit charging of the first inductor by the input voltage, and an open operating state, to permit transfer of the charge stored in the first inductor to the capacitor via the second inductor.

Abstract translation: 描述了一种用于为喷射器的压电致动器供电并且具有被提供有输入电压的第一和第二输入端的升压电路; 提供大于输入电压的输出电压的第一和第二输出端子，第二输入端子和第二输出端子通过公共线彼此连接; 第一和第二电感器，磁耦合并串联连接在第一输入端子和第一输出端子之间; 连接在所述第一输出端子和所述第二输出端子之间的电容器; 以及连接在第一和第二电感器之间的中间节点与第二输入端子和第二输出端子之间的中间节点之间的受控开关，并且其在闭合操作状态之间切换以允许第一电感器通过输入电压充电，并且开路 操作状态，以允许经由第二电感器将存储在第一电感器中的电荷传送到电容器。

公开(公告)号：US06853114B2

公开(公告)日：2005-02-08

申请号：US10809647

申请日：2004-03-25

Applicant: Georg Bachmaier ,  Bernhard Fischer ,  Andreas Kappel ,  Enrico Ulivieri

Inventor： Georg Bachmaier ,  Bernhard Fischer ,  Andreas Kappel ,  Enrico Ulivieri

IPC: F02D41/20 ,  H01L41/04 ,  H02M3/155 ,  H02N2/00 ,  H02N2/06 ,  H01L41/08 ,  F02M51/00

CPC classification number: H02M3/155 ,  F02D41/2096 ,  F02D2041/201 ,  F02D2041/2051 ,  H02M2001/007 ,  H02N2/067

Abstract: A converter mounting comprises a memory coil inductance (8), a memory primary capacitor (3) mounted upstream of said coil inductance, and a memory secondary capacitor (4), in particular, a piezoelectric actuator, mounted downstream of said coil inductance. Through control of a primary circuit element (12) and of a secondary circuit element (14), the energy of the memory primary capacitor (3) can be transferred to the memory secondary capacitor (4) and recovered.

Abstract translation: A转换器安装包括存储器线圈电感（8），安装在所述线圈电感上游的存储器初级电容器（3）和安装在所述线圈电感器下游的存储器二次电容器（4），特别是压电致动器。 通过控制主电路元件（12）和次级电路元件（14），可以将存储器一次电容器（3）的能量传送到存储器二次电容器（4）并恢复。

公开(公告)号：US20040051421A1

公开(公告)日：2004-03-18

申请号：US10619482

申请日：2003-07-16

Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI

Inventor： Mario Montuschi ,  Eugenio Faggioli ,  Paolo Reggio

IPC: H01L041/09

CPC classification number: F02D41/2096 ,  F02D2041/201 ,  F02D2041/2051 ,  F02D2041/2082

Abstract: The system makes it possible to control at least one piezoelectric actuator having a capacitive impedance and includes a source of voltage, a control circuit branch in parallel with the source, in which the actuator is connected in series to two electronic switches each having a respective parallel diode; an energy accumulating inductor with one terminal connected between the said switches and the other connected to the voltage source; and an electronic unit operable to control the said controlled switches according to predetermined modes of operation.

Abstract translation: 该系统使得可以控制至少一个具有电容性阻抗的压电致动器，并且包括电压源，与源并联的控制电路，其中致动器串联连接到两个电子开关，每个电子开关具有各自的平行 二极管; 一个蓄电电感器，一个端子连接在所述开关之间，另一端连接到电压源; 以及电子单元，其可操作以根据预定的操作模式来控制所述受控开关。

公开(公告)号：US6005763A

公开(公告)日：1999-12-21

申请号：US26627

申请日：1998-02-20

Applicant: Christopher North

Inventor： Christopher North

IPC: F02D41/20 ,  H01F7/124 ,  H01F7/18 ,  H01H47/32

CPC classification number: F02D41/20 ,  H01F7/1883 ,  F02D2041/201 ,  F02D2041/2027 ,  F02D2041/2075 ,  H01F7/124

Abstract: Pulsed-energy controllers and methods of operation thereof for driving inductive loads such as the actuator coil or coils of electromechanical actuators. The controllers utilize an inductor through which an initial current is established through a first circuit. The inductor is then switched across the actuator coil or other inductive load in a second circuit and the first circuit is opened. The back EMF of the inductor, limited by a high voltage protective device, causes a rapid rise in the current through the actuator coil, the rise being much faster than could be achieved by merely coupling the supply voltage, as used to establish the current in the inductor, directly to the actuator coil. By proper selection of the controller circuit and its parameters, the initial rapid current rise may continue to a current higher than a steady state current, after which the current will decrease to or toward the lower steady state current until the current pulse is terminated. Various embodiments are disclosed.

Abstract translation: 脉冲能量控制器及其操作方法，用于驱动诸如致动器线圈或机电致动器的线圈的感应负载。 控制器利用电感器，通过第一电路建立初始电流。 然后在第二电路中将电感器切换到致动器线圈或其它感性负载，并且第一电路被打开。 由高压保护装置限制的电感器的反电动势使得通过致动器线圈的电流快速上升，这比通过仅仅耦合电源电压可以实现的快得多，用于建立电流 电感器，直接到致动器线圈。 通过适当选择控制器电路及其参数，初始快速电流上升可能持续到高于稳态电流的电流，之后电流将降低到或低于稳态电流，直到电流脉冲终止。 公开了各种实施例。

公开(公告)号：US5979412A

公开(公告)日：1999-11-09

申请号：US909964

申请日：1997-08-12

Applicant: Matthew L. Werner

Inventor： Matthew L. Werner

IPC: F02D41/20 ,  F02B3/00 ,  F02B51/00

CPC classification number: F02D41/20 ,  F02D2041/2003 ,  F02D2041/201 ,  F02D2041/389 ,  F02D2200/0406 ,  F02D2200/0414

Abstract: A drive circuit for energizing an engine fuel injector coil from a power source which has energy storage means responsive to a first control signal for selectively storing energy from the power source, and means responsive to a second control signal for selectively discharging energy stored in the energy storage means into said injector coil. The stored energy is discharged into the injector coil in addition to energy from the power source, to more rapidly open the fuel injector. In a preferred embodiment, the circuit has an inductor in circuit with the fuel injector, an inductor driver switch to control the flow of current through the inductor and an injector driver switch to control the flow of current through the fuel injector. When the inductor is energized by its associated switch, it stores significant electromagnetic energy therein, which is transferred to the injector when it is desired to open the injector to deliver an increased current to the injector to more quickly open it and reduce the start delay time for the injection event.

Abstract translation: 一种驱动电路，用于从具有能量存储装置的能量存储装置供电的发动机燃料喷射器线圈，所述能量存储装置响应于用于选择性地存储来自所述电源的能量的第一控制信号，以及响应于所述第二控制信号的装置， 存储装置进入所述喷射器线圈。 存储的能量除了来自电源的能量之外还被排放到喷射器线圈中，以更快速地打开燃料喷射器。 在优选实施例中，电路具有与燃料喷射器电路的电感器，用于控制通过电感器的电流的电感器驱动器开关和用于控制通过燃料喷射器的电流的喷射器驱动器开关的电感器。 当电感器被其相关联的开关激励时，其在其中存储显着的电磁能，当需要打开喷射器以将更大的电流传送到喷射器以更快地打开喷射器并将减小启动延迟时间 用于注射事件。

公开(公告)号：US3896346A

公开(公告)日：1975-07-22

申请号：US37795673

申请日：1973-07-10

Applicant: ELECTRONIC CAMSHAFT CORP

Inventor： ULE LOUIS A

IPC: F02D41/20 ,  H01H47/32

CPC classification number: H01H47/325 ,  F02D41/20 ,  F02D2041/201 ,  F02D2041/2017 ,  F02D2041/2058

Abstract: A solid state electrical switching circuit of high efficiency is employed to increase the speed with which an electromagnet operated device, such as a relay or a hydraulic valve, can be actuated without increasing the power required to maintain the device in the actuated state. The circuit can also be made to provide the momentary increased electrical current required to obtain a given mechanical force when the magnetic gap between the solenoid core and the movable pole piece is open. Both actuation and de-actuation speed of the electromagnet are increased and rapid deactuation is achieved either by a high reverse voltage applied to the solenoid and the return of its energy to the power source or by a diode and capacitor network which transfers the magnetic energy to a second solenoid which thereupon becomes energized.