公开(公告)号：US5463999A

公开(公告)日：1995-11-07

申请号：US107571

申请日：1993-08-18

申请人： Masaaki Taruya ,  Mitsuru Koiwa

发明人： Masaaki Taruya ,  Mitsuru Koiwa

IPC分类号： F02P15/00 ,  F02P3/02 ,  H01F27/40 ,  H01F38/12 ,  F02P3/00

CPC分类号： H01F27/40 ,  F02P3/02 ,  H01F38/12 ,  Y10T29/4902

摘要： An ignition coil unit comprises a coil assembly (55) having an ignition coil (A), a power switch circuit (B) having a plurality of electric and electronic components therein for interrupting an electric current flowing through the ignition coil (A) and a terminal conductor (8) for electrically connecting the coil assembly (55) to an external circuit, and an electrically insulating transfer-molded resin (50) disposed around the coil assembly (55) for supporting therein the coil assembly (55). Further, the ignition coil (A), the power switch circuit (B) and the terminal conductor (8) are mechanically connected into the coil assembly (55). The present invention also resides in a method for manufacturing the same.

摘要翻译： 点火线圈单元包括具有点火线圈（A）的线圈组件（55），其中具有多个用于中断通过点火线圈（A）的电流的电和电子部件的功率开关电路（B）和 用于将线圈组件（55）电连接到外部电路的端子导体（8）和设置在线圈组件（55）周围的用于在其中支撑线圈组件（55）的电绝缘转移模制树脂（50）。 此外，点火线圈（A），电源开关电路（B）和端子导体（8）机械地连接到线圈组件（55）中。 本发明也在于其制造方法。

公开(公告)号：US5172302A

公开(公告)日：1992-12-15

申请号：US764876

申请日：1991-09-24

申请人： Masaaki Taruya ,  Mitsuru Koiwa ,  Nobuyuki Sawazaki

发明人： Masaaki Taruya ,  Mitsuru Koiwa ,  Nobuyuki Sawazaki

IPC分类号： F02P3/02 ,  H01F38/12

CPC分类号： F02P3/02 ,  H01F38/12

摘要： An ignition coil unit comprising within an electrically insulating casing (31) an ignition coil (A) and a packaged power switch circuit (E). The packaged power switch circuit (E), which comprises a plurality of electric and electronic components (F) hermetically sealed within a mold resin (G) to form a single compact unitary piece, is disposed within a power switch cavity (31d) of the casing (31). An aluminum heat dissipating plate (30) may be attached at its first end (30a) to said packaged power switch circuit (E) in a thermally conductive relationship and exposed at its second end (30b) to the exterior of said casing (31).

摘要翻译： 一种点火线圈单元，包括电绝缘壳体（31），点火线圈（A）和封装的功率开关电路（E）。 封装的电源开关电路（E）被设置在电源开关空腔（31d）内，该多个电气和电子部件（F）被密封在模制树脂（G）内以形成单个紧凑的整体件 套管（31）。 铝散热板（30）可以在其第一端（30a）处以导热关系连接到所述封装的功率开关电路（E）并在其第二端（30b）暴露于所述壳体（31）的外部， 。

公开(公告)号：US5035229A

公开(公告)日：1991-07-30

申请号：US533320

申请日：1990-06-05

申请人： Mitsuru Koiwa

发明人： Mitsuru Koiwa

IPC分类号： F02P3/045

CPC分类号： F02P3/0453

摘要： An engine ignition device comprises a circuit which generates a bias voltage corresponding to the engine rpm and superimposes it on an ignition signal so that the closing rate of the primary power feeding circuit for an ignition coil is controlled, a switching operation level setting circuit for generating a set voltage which changes with the engine rpm at startup or idling, and a comparison circuit having a first input receiving the ignition signal and superposed bias voltage and a second input receiving the set voltage, and generating an inverted output. The magnitude of the set voltage is changed in response to the engine rpm between the starting time and the idling time such that when the engine is started, the potential difference between voltages at the input terminals of the comparison circuit, as determined by the bias and set voltages, assumes a first value smaller than the ignition signal voltage, and when the engine is idling, the potential difference assumes a second value smaller than the ignition signal voltage, but larger than the first value.

摘要翻译： 发动机点火装置包括产生与发动机转速相对应的偏置电压并将其叠加在点火信号上的电路，从而控制点火线圈的一次供电电路的关闭速度;开关动作电平设定电路， 以及比较电路，具有接收点火信号和叠加偏置电压的第一输入端和接收设定电压的第二输入端，并产生反相输出。 设定电压的大小响应于起动时间和空转时间之间的发动机转速而变化，使得当发动机起动时，由比较电路确定的比较电路的输入端子处的电压之间的电位差，以及 设定电压为比点火信号电压小的第一值，当发动机空转时，电位差呈现小于点火信号电压但大于第一值的第二值。

公开(公告)号：US5014675A

公开(公告)日：1991-05-14

申请号：US522777

申请日：1990-05-14

申请人： Mitsuru Koiwa

发明人： Mitsuru Koiwa

IPC分类号： F02P3/045

CPC分类号： F02P3/0453

摘要： An ignition apparatus for an engine reduces the duty cycle of a power transistor circuit for controlling the primary winding current of an ignition coil over the entire operating range of the engine including low and high speeds. In one embodiment, a signal generator generates an alternating output signal which is fed through a resistor to a wave form shaper for comparison with a threshold voltage. As long as the signal generator output is higher than the threshold voltage, the wave form shaper generates an output pulse for controlling a conduction time of the power transistor circuit. When the engine is operating at low speeds, the pulse width of the wave form shaper output is reduced by partially absorbing the signal generator output by a current absorbing circuit which is disabled at high engine speeds. In another embodiment, at high engine speeds, a DC current is supplied from a DC power source to a signal generator via a resistor through a current supply circuit which is disabled by a switching transistor at low enging speeds. In both of the embodiments, the signal generator has one end connected to ground and the other end connected at a single external connection point with the wave form shaper through the resistor.

摘要翻译： 用于发动机的点火装置降低用于在包括低速和高速的发动机的整个工作范围内控制点火线圈的初级绕组电流的功率晶体管电路的占空比。 在一个实施例中，信号发生器产生交流输出信号，其通过电阻馈送到波形整形器以与阈值电压进行比较。 只要信号发生器输出高于阈值电压，波形成形器就产生用于控制功率晶体管电路的导通时间的输出脉冲。 当发动机以低速运转时，通过在高发动机转速下禁用的电流吸收电路部分地吸收信号发生器的输出来减小波形整形器输出的脉冲宽度。 在另一个实施例中，在高发动机转速下，通过电流供应电路从直流电源向信号发生器经由电阻器提供直流电流，该电流供应电路由低开关速度的开关晶体管禁止。 在这两个实施例中，信号发生器的一端连接到地，另一端通过电阻器与波形整形器在单个外部连接点连接。

公开(公告)号：US06997171B1

公开(公告)日：2006-02-14

申请号：US11042076

申请日：2005-01-26

申请人： Yusuke Naruse ,  Hisanori Nobe ,  Mitsuru Koiwa

发明人： Yusuke Naruse ,  Hisanori Nobe ,  Mitsuru Koiwa

IPC分类号： F02P1/00

CPC分类号： F02P5/1455 ,  F02P3/05 ,  F02P5/151 ,  Y02T10/46

摘要： An ignition apparatus for an internal combustion engine is capable of avoiding mis-ignition even if subject to external disturbances when a fail signal is transmitted through a common signal line on which an ignition signal can also be transmitted. An igniter is connected to receive the ignition signal from an ECU, and includes a waveform shaper connected with the signal line and having an input connected in parallel to an input resistance so as to make a voltage at the input higher than a prescribed voltage when the ignition signal flows into the input resistance, and a pulse output circuit connected to the input and having an output for generating the fail signal into which a secondary coil current is converted. The pulse output circuit adjusts a fail signal current such that the voltage at the input when the fail signal flows into the input resistance becomes less than the prescribed voltage.

摘要翻译： 另外，内燃机的点火装置即使在故障信号通过也能够发送点火信号的公共信号线被发送的情况下也能够防止误动作。 连接点火器以接收来自ECU的点火信号，并且包括与信号线连接的波形整形器，并且具有与输入电阻并联连接的输入端，以便当输入端的电压高于规定电压时 点火信号流入输入电阻，而脉冲输出电路连接到输入端并具有用于产生转换了次级线圈电流的故障信号的输出端。 脉冲输出电路调节故障信号电流，使得当故障信号流入输入电阻时输入端的电压变得小于规定电压。

公开(公告)号：US06865929B2

公开(公告)日：2005-03-15

申请号：US10261502

申请日：2002-10-02

申请人： Koichi Okamura ,  Hisanori Nobe ,  Yasuhiro Takahashi ,  Mitsuru Koiwa

发明人： Koichi Okamura ,  Hisanori Nobe ,  Yasuhiro Takahashi ,  Mitsuru Koiwa

IPC分类号： G01M15/04 ,  F02D45/00 ,  F02P17/12 ,  G01L23/22 ,  G01M15/00

CPC分类号： G01L23/22 ,  F02P17/12 ,  F02P2017/125

摘要： Ion current detection signal output section for outputting an ion current detection signal including a failure determination signal of an ignition operation is provided, and a failure determination as well as a combustion state can be performed based on this ion current detection signal.

摘要翻译： 提供了用于输出包括点火操作的故障判定信号的离子电流检测信号的离子电流检测信号输出部，并且可以基于该离子电流检测信号进行故障判定以及燃烧状态。

公开(公告)号：US06378494B1

公开(公告)日：2002-04-30

申请号：US09628421

申请日：2000-07-28

申请人： Yasuyoshi Hatazawa ,  Koichi Okamura ,  Hisanori Nobe ,  Mitsuru Koiwa

发明人： Yasuyoshi Hatazawa ,  Koichi Okamura ,  Hisanori Nobe ,  Mitsuru Koiwa

IPC分类号： F02P5152

CPC分类号： F02P5/152 ,  F02P17/12 ,  F02P2017/128 ,  G01L23/221 ,  G01L23/225 ,  Y02T10/46

摘要： To obtain a knock detection apparatus which may obtain a good knock pulse S/N even if an ionic current generation amount is changed by the change of a kind of fuel or plugs, a knock detection apparatus for detecting a knock generated, in an internal combustion engine, in which a vibratory component superimposed on an ionic current generated by combustion of fuel is extracted, the component that is equal to or more than a knock detection threshold value is shaped in waveform into a pulse waveform, a knock strength is calculated through counting and calculation process of the number of pulses of the pulse waveform by an engine controlling unit, an ignition timing is controlled on the basis of the knock strength, comprises a knock detection threshold value adjusting unit for changing the knock detection threshold value on the basis of information of an ionic current.

摘要翻译： 为了获得能够通过燃料或塞的种类的变化来改变离子电流产生量而获得良好的爆震脉冲S / N的爆震检测装置，用于检测在内燃中产生的爆震的爆震检测装置 其中提取了叠加在由燃料燃烧产生的离子电流上的振动分量，将等于或大于爆震检测阈值的分量波形整形为脉冲波形，通过计数计算爆震强度 以及由发动机控制单元对脉搏波形的脉冲数的计算处理，基于爆震强度来控制点火正时，包括用于根据爆震检测阈值调整单元改变爆震检测阈值的爆震检测阈值调整单元 离子电流信息。

公开(公告)号：US5628297A

公开(公告)日：1997-05-13

申请号：US626328

申请日：1996-04-02

申请人： Masaaki Taruya ,  Mitsuru Koiwa

发明人： Masaaki Taruya ,  Mitsuru Koiwa

IPC分类号： F02P3/02 ,  F02P3/055 ,  H01F38/12

CPC分类号： F02P3/0552 ,  F02P3/02 ,  H01F38/12

摘要： An ignition apparatus for an internal combustion engine includes a power switch 16 for intermittently feeding a primary current to an ignition coil, and primary and secondary coils 5, 6 of the ignition coil contained in an insulation case 1 with the power switch and fixed by an insulating resin material 15 poured into the case. An insulating member 21 is interposed between the secondary coil 6 and the power switch 16 for suppressing thermal flow between the secondary coil 6 and the power switch 16. with this arrangement, a temperature increase caused by thermal interference between the ignition coil and the power switch is thus suppressed.

摘要翻译： 用于内燃机的点火装置包括用于间歇地向点火线圈馈送一次电流的电源开关16和包含在电力开关中的绝缘壳1中的点火线圈的一次线圈5,6和二次线圈6， 将绝缘树脂材料15注入到壳体中。 在次级线圈6和电源开关16之间插入绝缘构件21，用于抑制次级线圈6与电源开关16之间的热流动。由此，由点火线圈与电源开关之间的热干扰引起的温度上升 被抑制。

公开(公告)号：US5199407A

公开(公告)日：1993-04-06

申请号：US769320

申请日：1991-10-01

申请人： Nobuyuki Sawazaki ,  Masaaki Taruya ,  Mitsuru Koiwa

发明人： Nobuyuki Sawazaki ,  Masaaki Taruya ,  Mitsuru Koiwa

IPC分类号： F02B1/04 ,  F02P3/05

CPC分类号： F02P3/051 ,  F02B1/04

摘要： A current limiter in an ignition apparatus for an internal combustion engine including a differential amplifier 20 is able to limit a primary winding current of an ignition coil to a prescribed limit value which is independent of a voltage as sensed by a current sensing resistor 11, thus providing a highly stable operating characteristic. The factor of current amplification of the differential amplifier can be increased without accompanying oscillations of the current limiter. The current sensing resistor senses a voltage corresponding to a current flowing from the primary winding of the ignition coil to a power transistor 4 which turns on and off the power supply to the ignition coil. A reference voltage source 12 generates a reference voltage for comparison with the voltage sensed by the current sensing resistor. A differential amplifier absorbs a part of a base current supplied from a storage battery to a base of the power transistor on the basis of a difference between the reference voltage and the voltage sensed by the current sensing resistor. A plurality of output transistors 25, 102 are coupled to form a Darlington circuit which is connected between the differential amplifier and the base of the power transistor. Another reference voltage source 12" may be provided for generating a second reference voltage, the second reference voltage source being connected between the current sensing resistor and the second input terminal of the differential amplifier for supplying thereto a total sum of the voltage sensed by the current sensing resistor and the second reference voltage.

摘要翻译： 在具有差分放大器20的内燃机用点火装置中的限流器能够将点火线圈的初级绕组电流限制为与由电流检测电阻器11感测到的电压无关的规定极限值，因此 提供高度稳定的工作特性。 差分放大器的电流放大因子可以增加，而不伴随限流器的振荡。 电流感测电阻器检测对应于从点火线圈的初级绕组流过的电流的电压到接通和断开对点火线圈的电源的功率晶体管4。 参考电压源12产生用于与由电流感测电阻器感测的电压进行比较的参考电压。 差分放大器基于参考电压和由电流感测电阻感测的电压之间的差异，吸收从蓄电池提供给功率晶体管的基极的一部分基极电流。 多个输出晶体管25,102被耦合以形成连接在功率晶体管的差分放大器和基极之间的达林顿电路。 可以提供另一参考电压源12“用于产生第二参考电压，第二参考电压源连接在差动放大器的电流检测电阻和第二输入端之间，用于向其提供由 电流检测电阻和第二参考电压。

公开(公告)号：US5131377A

公开(公告)日：1992-07-21

申请号：US718134

申请日：1991-06-20

申请人： Masaaki Taruya ,  Mitsuru Koiwa

发明人： Masaaki Taruya ,  Mitsuru Koiwa

IPC分类号： F02P3/04

CPC分类号： F02P3/0435

摘要： The power transistor unit 2A for controlling the current supply to the primary side of the ignition coil 3 includes a light emitting diode 10 coupled to the output of the control unit 1, and a phototransistor 11 optically coupled to the light emitting diode 10. The light emitting diode 10 and the phototransistor 11 together constitute a optoisolator. Thus, the ignition coil 3 is electrically isolated from the control unit 1, and hence a filter circuit for suppressing noise from the ignition coil 3 can be dispensed with.

摘要翻译： 用于控制对点火线圈3的初级侧的电流供给的功率晶体管单元2A包括耦合到控制单元1的输出的发光二极管10和光耦合到发光二极管10的光电晶体管11。 发光二极管10和光电晶体管11一起构成光隔离器。 因此，点火线圈3与控制单元1电隔离，因此可以省略用于抑制来自点火线圈3的噪声的滤波电路。