公开(公告)号：US08149559B2

公开(公告)日：2012-04-03

申请号：US12213167

申请日：2008-06-16

Applicant: Tatsuya Kakehi ,  Noboru Nagase

Inventor： Tatsuya Kakehi ,  Noboru Nagase

IPC: H01H57/00

CPC classification number: H02N2/067 ,  F02D41/2096 ,  F02D2041/2024

Abstract: A driving device for a piezoelectric actuator supplies charges and discharges the piezoelectric actuator through a charging switch and a discharging switch, respectively. The charging switch is repeatedly turned on and off thereby to charge and expand the piezoelectric actuator. The discharging switch is repeatedly turned on and off thereby to discharge and contract the piezoelectric actuator. The discharging switch is kept ON especially during a period from when the discharging switching control is terminated to when the charging switching control is started next. Thus, the piezoelectric voltage at the start of the next driving can be made substantially 0V.

Abstract translation: 用于压电致动器的驱动装置分别通过充电开关和放电开关对压电致动器进行充电和放电。 充电开关反复打开和关闭，从而对压电致动器进行充电和膨胀。 放电开关重复地接通和断开，从而使压电致动器放电和收缩。 放电开关特别是在从放电切换控制终止到接下来开始充电开关控制的时间段期间保持接通。 因此，下一次驱动开始时的压电电压可以大致为0V。

公开(公告)号：US07819337B2

公开(公告)日：2010-10-26

申请号：US11819545

申请日：2007-06-28

Applicant: Noboru Nagase

Inventor： Noboru Nagase

IPC: B05B1/08 ,  B05B3/04

CPC classification number: F02M47/027 ,  F02D41/2096 ,  F02M51/005 ,  F02M51/0603 ,  F02M63/0026 ,  F02M63/0045 ,  H01L41/053 ,  H02N2/067

Abstract: The piezo injector includes a piezo element expanding when electrical charges supplied from an external DC source are accumulated therein, and contracting when the electrical charges are discharged therefrom, an open/close valve opening and closing in accordance with expansion and contraction of the piezo element, a housing containing therein the piezo element and the open/close valve, and an inductor element through which the electrical charges are accumulated in and discharged from the piezo element.

Abstract translation: 压电喷射器包括当从外部DC源供应的电荷积聚在其中时膨胀的压电元件，以及当电荷从其中排出时收缩，根据压电元件的膨胀和收缩打开/关闭阀， 其中容纳有压电元件和开/关阀的壳体，以及电感元件，电荷通过该电感器元件积聚在压电元件中并从压电元件排出。

公开(公告)号：US07706956B2

公开(公告)日：2010-04-27

申请号：US11905149

申请日：2007-09-27

Applicant: Noboru Nagase ,  Hideo Naruse ,  Takashi Kikutani

Inventor： Noboru Nagase ,  Hideo Naruse ,  Takashi Kikutani

IPC: F02M51/00 ,  F02M61/04 ,  F02M63/00

CPC classification number: F02D41/2096 ,  F02D41/402 ,  F02D2041/2051 ,  F02D2041/2065 ,  F02D2200/503

Abstract: An apparatus is provided for driving an injector injecting fuel into an internal combustion engine. The injector is provided with a piezoelectric element to be charged and discharged. The apparatus comprises a calculator and a charger. The calculator calculates a command value to charge the piezoelectric element. The calculator includes correcting means that corrects the command value based on information indicating either an operation of the piezoelectric element or an electric characteristic of the apparatus. The charger charges the piezoelectric element in response to the corrected command value to accumulate a desired amount of electric energy at the piezoelectric element.

Abstract translation: 提供了一种用于驱动喷射器将燃料喷射到内燃机中的装置。 喷射器设置有要被充放电的压电元件。 该装置包括计算器和充电器。 计算器计算给压电元件充电的指令值。 该计算器包括校正装置，该校正装置根据指示压电元件的操作或装置的电特性的信息校正指令值。 充电器响应于校正的指令值对压电元件充电，以在压电元件处累积期望的电能量。

公开(公告)号：US06675784B2

公开(公告)日：2004-01-13

申请号：US09977335

申请日：2001-10-16

Applicant: Noboru Nagase ,  Tetsuya Miwa ,  Makoto Toriyama

Inventor： Noboru Nagase ,  Tetsuya Miwa ,  Makoto Toriyama

IPC: F02P306

CPC classification number: F02P3/06 ,  F02D2041/227 ,  F02P3/051 ,  F02P15/008

Abstract: In an engine ignition system having a fail-safe function, a battery, a coil and a transistor are connected in series. A capacitor is connected to the coil by way of a diode. The capacitor, a primary winding of an ignition coil and a transistor are connected in series. A transistor and a diode in serial connection are connected in parallel to the coil and diode in serial connection. A drive circuit turns on and off the transistor to charge the capacitor and operates the transistor to implement the ignition operation. The drive circuit, in the event of system failure, turns on and off the transistor, while retaining the transistor in the on state, thereby to feed energy of the battery to the primary winding.

Abstract translation: 在具有故障保护功能的发动机点火系统中，电池，线圈和晶体管串联连接。 电容器通过二极管连接到线圈。 电容器，点火线圈的初级绕组和晶体管串联连接。 串联的晶体管和二极管串联连接到线圈和二极管。 驱动电路打开和关闭晶体管，以对电容器充电并操作晶体管以实现点火操作。 在系统故障的情况下，驱动电路导通和关断晶体管，同时将晶体管保持在导通状态，从而将电池的能量馈送到初级绕组。

公开(公告)号：US5927259A

公开(公告)日：1999-07-27

申请号：US86586

申请日：1998-05-29

Applicant: Koji Ando ,  Noboru Nagase ,  Yasuo Tsuzuki

Inventor： Koji Ando ,  Noboru Nagase ,  Yasuo Tsuzuki

IPC: F02P15/00 ,  F02P3/02 ,  H01F38/12 ,  F02P3/00

CPC classification number: F02P3/02

Abstract: An ignition coil has a stress absorbing member with a coefficient of linear expansion which is smaller than a coefficient of linear expansion of a potting resin. The stress absorbing member faces along a circuit element of a mold ignition circuit and is buried in the potting resin. Thus, stress, caused by temperature change, which is applied to the circuit element of the mold ignition circuit from the potting resin can be reduced by the stress absorbing member. Therefore, peeling at a bonding portion of the circuit elements or at the crack can be prevented. Furthermore, the stress absorbing member is only facing along the circuit element mounting surface, and the mold ignition circuit is not wrapped by the stress absorbing member. Therefore, heat radiation from the mold ignition circuit is not suppressed by the stress absorbing member. The radiation performance of the ignition apparatus is thus improved, and the durability and credibility of the ignition circuit is improved.

Abstract translation: 点火线圈具有线膨胀系数小于灌封树脂的线性膨胀系数的应力吸收构件。 应力吸收构件沿着模具点火电路的电路元件面向并埋在灌封树脂中。 因此，可以通过应力吸收部件减少由浇注树脂施加到模具点火回路的电路元件的温度变化引起的应力。 因此，可以防止在电路元件的接合部分或裂纹处的剥离。 此外，应力吸收构件仅面向电路元件安装面，并且模具点火电路不被应力吸收构件包裹。 因此，来自模具点火回路的热辐射不被应力吸收部件抑制。 因此，提高了点火装置的放射性能，提高了点火电路的耐久性和可靠性。

公开(公告)号：US07812503B2

公开(公告)日：2010-10-12

申请号：US12194159

申请日：2008-08-19

Applicant: Tatsuya Kakehi ,  Noboru Nagase

Inventor： Tatsuya Kakehi ,  Noboru Nagase

IPC: H01L41/08

CPC classification number: H02M3/158 ,  F02D41/2096 ,  H02N2/067

Abstract: A fuel injection control apparatus drives piezoelectric actuators for opening and closing injectors of respective cylinders based on energy stored in a capacitor of a DC/DC converter. A current detecting resistor for controlling a boost switch to charge the capacitor is disposed at a position at which current flowing through the capacitor is not detected. Further, current detecting resistors for controlling the piezoelectric actuators are disposed at positions at which charging current from a diode to the capacitor is not detected. Thus, the charging of the capacitor can be performed even during the control for charging/discharging the piezoelectric actuator.

Abstract translation: 燃料喷射控制装置基于存储在DC / DC转换器的电容器中的能量驱动用于打开和关闭各个气缸的喷射器的压电致动器。 用于控制升压开关对电容器充电的电流检测电阻器设置在未检测到流过电容器的电流的位置。 此外，用于控制压电致动器的电流检测电阻器设置在未检测到二极管至电容器的充电电流的位置。 因此，即使在用于对压电致动器进行充电/放电的控制期间，也可以执行电容器的充电。

公开(公告)号：US07626315B2

公开(公告)日：2009-12-01

申请号：US11437770

申请日：2006-05-22

Applicant: Noboru Nagase

Inventor： Noboru Nagase

IPC: H01L41/09

CPC classification number: F02D41/2096 ,  F02D2041/2003 ,  F02D2200/0602 ,  F02D2200/0604 ,  F02D2200/501 ,  H02N2/067

Abstract: A piezo-injector driving apparatus overcomes disadvantages occurring at the start and the end of charging or discharging of a piezoelectric element while maintaining high responsiveness. At the start and the end of charging a piezoelectric element, the absolute value of a change rate of electrical energy of the piezoelectric element is set lower than in a period between them. Therefore, the pattern of electrical energy of the piezoelectric element is in the shape of the letter S. This prevents an excess of energy supplied to the piezoelectric element at the start of charging and energy supplied to the piezoelectric element at the end of charging.

Abstract translation: 压电喷射器驱动装置克服了在压电元件的充电或放电的开始和结束时发生的缺点，同时保持高响应性。 在对压电元件充电的开始和结束时，将压电元件的电能的变化率的绝对值设定为低于其间的周期。 因此，压电元件的电能的形状是字母S的形状。这防止了在充电开始时提供给压电元件的能量过剩以及在充电结束时供应给压电元件的能量。

公开(公告)号：US07546830B2

公开(公告)日：2009-06-16

申请号：US11806322

申请日：2007-05-31

Applicant: Noboru Nagase ,  Takashi Kikutani

Inventor： Noboru Nagase ,  Takashi Kikutani

IPC: F02M51/00

CPC classification number: B60W20/00 ,  B60K6/48 ,  B60W10/06 ,  B60W10/08 ,  B60W10/24 ,  B60W2510/24 ,  B60W2710/0616 ,  F02D41/2096 ,  F02D2041/2003 ,  F02D2400/16 ,  F02M63/0026 ,  Y02T10/6221

Abstract: An injector drive device includes a power supply unit that is supplied with power from a battery mounted in a vehicle and generates a voltage higher than the voltage of the battery, and EDU having a drive unit that is supplied with power from the power supply unit and drives an injector. The drive unit is housed in a housing. The power supply unit is placed externally to the EDU, that is, externally to the housing, so that the housing need not be made large against heat generation of the power supply unit.

Abstract translation: 喷射器驱动装置包括从安装在车辆中的电池供电的电源单元，并产生高于电池电压的电压，以及具有从电源单元供电的驱动单元的EDU，以及 驱动注射器。 驱动单元被容纳在壳体中。 电源单元被放置在EDU的外部，也就是在壳体的外部，使得不需要使壳体大于电源单元的发热量。

公开(公告)号：US20070296307A1

公开(公告)日：2007-12-27

申请号：US11808180

申请日：2007-06-07

Applicant: Yasuhiro Fukagawa ,  Tsutomu Nakamura ,  Takamichi Kamiya ,  Noboru Nagase ,  Hideo Naruse

Inventor： Yasuhiro Fukagawa ,  Tsutomu Nakamura ,  Takamichi Kamiya ,  Noboru Nagase ,  Hideo Naruse

IPC: H01L41/09

CPC classification number: H02N2/067 ,  F02D41/2096

Abstract: In a driving device for a piezoelectric actuator, when a driving signal is input, a charging switch is repetitively turned on/off to charge and expand the piezoelectric actuator under the state that a discharging switch is turned off. Thereafter, when the input of the driving signal is stopped, the discharging switch is repetitively turned on/off under the state that the charging switch is turned off, thereby discharging and contracting the piezoelectric actuator. Particularly, during the charging period, the charging switch is turned on at a fixed period, and the charging switch is turned off when an integration value of current flowing in a charging circuit at the ON-time of the charging switch reaches a target charge amount.

Abstract translation: 在用于压电致动器的驱动装置中，当输入驱动信号时，在放电开关断开的状态下，充电开关重复地导通/截止以对压电致动器充电和膨胀。 此后，当驱动信号的输入停止时，在充电开关关闭的状态下，放电开关重复地接通/断开，从而使压电致动器放电和收缩。 特别地，在充电期间，充电开关以固定的时间段接通，并且当在充电开关的导通时间中流过充电电路的电流的积分值达到目标充电量时，充电开关截止 。

公开(公告)号：US07474035B2

公开(公告)日：2009-01-06

申请号：US11808180

申请日：2007-06-07

Applicant: Yasuhiro Fukagawa ,  Tsutomu Nakamura ,  Takamichi Kamiya ,  Noboru Nagase ,  Hideo Naruse

Inventor： Yasuhiro Fukagawa ,  Tsutomu Nakamura ,  Takamichi Kamiya ,  Noboru Nagase ,  Hideo Naruse

IPC: H01L41/09 ,  H02N2/16

CPC classification number: H02N2/067 ,  F02D41/2096

Abstract: In a driving device for a piezoelectric actuator, when a driving signal is input, a charging switch is repetitively turned on/off to charge and expand the piezoelectric actuator under the state that a discharging switch is turned off. Thereafter, when the input of the driving signal is stopped, the discharging switch is repetitively turned on/off under the state that the charging switch is turned off, thereby discharging and contracting the piezoelectric actuator. Particularly, during the charging period, the charging switch is turned on at a fixed period, and the charging switch is turned off when an integration value of current flowing in a charging circuit at the ON-time of the charging switch reaches a target charge amount.

Abstract translation: 在用于压电致动器的驱动装置中，当输入驱动信号时，在放电开关断开的状态下，充电开关重复地导通/截止以对压电致动器充电和膨胀。 此后，当驱动信号的输入停止时，在充电开关关闭的状态下，放电开关重复地接通/断开，从而使压电致动器放电和收缩。 特别地，在充电期间，充电开关以固定的时间段接通，并且当在充电开关的导通时间中流过充电电路的电流的积分值达到目标充电量时，充电开关截止 。