公开(公告)号：US09488151B2

公开(公告)日：2016-11-08

申请号：US13722453

申请日：2012-12-20

Applicant: DENSO CORPORATION

Inventor： Masamichi Shibata ,  Atsuya Mizutani ,  Koichi Hattori ,  Yasuomi Imanaka

IPC: F02P1/08 ,  H01T13/44 ,  F02P3/02 ,  F02P3/055 ,  F02P3/04

CPC classification number: F02P1/083 ,  F02P3/02 ,  F02P3/0407 ,  F02P3/0442 ,  F02P3/0552 ,  H01T13/44

Abstract: An ignition system is provided, in which a Zener diode is connected in parallel with a spark plug, to suppress torque variation from becoming large in an engine when deterioration of the spark plug is advanced. Specifically, the ignition system includes a secondary coil having an end connected to a center electrode of the spark plug via a connecting path. The connecting path is connected to a constant-voltage path having a grounded end and including the Zener diode. The time from when an ignition signal is switched off until when ignition timing occurs is measured for a plurality of times. The difference between a maximum value and a minimum value among the plurality of measurements is defined to be a variation range. A breakdown voltage of the Zener diode is adjusted based on requirements such as for rendering the variation range to be a predetermined time or smaller.

Abstract translation: 提供了一种点火系统，其中齐纳二极管与火花塞并联连接，以在火花塞的劣化提前时抑制发动机中的扭矩变化变大。 具体来说，该点火系统包括一个次级线圈，其一端通过连接路径连接到火花塞的中心电极。 连接路径连接到具有接地端并包括齐纳二极管的恒定电压路径。 从点火信号关闭直到点火正时发生的时间被测量多次。 多个测量中的最大值和最小值之间的差定义为变化范围。 齐纳二极管的击穿电压根据要求进行调整，例如使变化范围为预定时间或更短。

公开(公告)号：US20160222939A1

公开(公告)日：2016-08-04

申请号：US15012513

申请日：2016-02-01

Applicant: FAIRCHILD SEMICONDUCTOR CORPORATION

Inventor： Qingquan TANG ,  James E. GILLBERG

IPC: F02P9/00 ,  F02P3/04 ,  H03K3/02

CPC classification number: F02P17/12 ,  F02P3/04 ,  F02P3/0442 ,  F02P3/0453 ,  F02P3/051 ,  F02P3/053 ,  F02P3/055 ,  F02P3/0552 ,  F02P9/002 ,  H03K17/08128 ,  H03K17/0828 ,  H03K17/166 ,  H03K17/168 ,  H03K17/691

Abstract: In a general aspect, a circuit for controlling operation of an ignition circuit including an insulated-gate bipolar transistor (IGBT) device can include a current slope detection circuit configured to detect a slope of a current in a primary winding of an ignition coil included in the ignition circuit and a driver circuit coupled with the current slope detection circuit. The current slope detection circuit can be further configured to, during charging of the ignition coil, if the detected slope is above a first limit, provide a first indication to the driver circuit; and, if the detected slope is below a second limit, provide a second indication to the driver circuit. The driver circuit can be configured to, in response to receiving the first indication or the second indication, modify operation of the ignition circuit.

Abstract translation: 一般来说，用于控制包括绝缘栅双极晶体管（IGBT）装置的点火电路的操作的电路可以包括电流斜率检测电路，其被配置为检测包括在所述点火线圈中的点火线圈的初级绕组中的电流的斜率 点火电路和与电流斜坡检测电路耦合的驱动电路。 电流斜率检测电路还可以在点火线圈充电期间，如果检测到的斜率高于第一极限，则向驱动电路提供第一指示; 并且如果检测到的斜率低于第二限制，则向驱动器电路提供第二指示。 驱动器电路可以被配置为响应于接收到第一指示或第二指示，修改点火电路的操作。

公开(公告)号：US20150263491A1

公开(公告)日：2015-09-17

申请号：US14622319

申请日：2015-02-13

Applicant: FUJI ELECTRIC CO., LTD.

Inventor： Shigemi MIYAZAWA

IPC: H01T15/00 ,  H01L27/06 ,  H01L29/78 ,  H01L49/02 ,  H01L29/739 ,  H01L29/866

CPC classification number: H01T15/00 ,  F02P3/0435 ,  F02P3/0552 ,  H01T1/15 ,  H03K17/04206

Abstract: A semiconductor device includes a power semiconductor element, a gate pull-down circuit which is connected to a gate terminal of the power semiconductor element, and a gate resistor which is connected between an input terminal of the semiconductor device and the gate terminal of the power semiconductor element. The gate pull-down circuit has a constant current circuit by which electric charges can be extracted from a gate capacitance of the power semiconductor element when a signal inputted to the input terminal has a low level. As a result, the semiconductor device has an improved switching speed and an improved noise resistance.

Abstract translation: 半导体器件包括功率半导体元件，连接到功率半导体元件的栅极端子的栅极下拉电路和连接在半导体器件的输入端子和电源的栅极端子之间的栅极电阻器 半导体元件。 栅极下拉电路具有恒定电流电路，当输入到输入端子的信号具有低电平时，可以从功率半导体元件的栅极电容中提取电荷。 结果，半导体器件具有改进的开关速度和改善的抗噪声性能。

公开(公告)号：US08006678B2

公开(公告)日：2011-08-30

申请号：US12328462

申请日：2008-12-04

Applicant: Tatsuya Naito ,  Kenichi Ishii ,  Shigemi Miyazawa ,  Ryuu Saitou

Inventor： Tatsuya Naito ,  Kenichi Ishii ,  Shigemi Miyazawa ,  Ryuu Saitou

IPC: F02P1/00

CPC classification number: F02P3/0552

Abstract: A coil failure detection circuit detects a rise of a collector current of an IGBT and a timer circuit measures the length of a rise period. If the rise is not a normal one, an electronic control unit judges that a coil failure has occurred. The electronic control unit turns off the IGBT to prevent misfires and stops a flow of fuel gas to a combustion chamber to prevent melting or deterioration of a catalyst.

Abstract translation: 线圈故障检测电路检测IGBT的集电极电流的上升，并且定时器电路测量上升周期的长度。 如果上升不是正常的，则电子控制单元判断线圈故障已经发生。 电子控制单元关闭IGBT以防止失火，并停止向燃烧室的燃料气流，以防止催化剂熔化或劣化。

公开(公告)号：US20060244496A1

公开(公告)日：2006-11-02

申请号：US11407104

申请日：2006-04-20

Applicant: Haruo Kawakita

Inventor： Haruo Kawakita

IPC: H03B1/00

CPC classification number: F02P3/0552 ,  F02P11/06 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/05554 ,  H01L2224/32245 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/3011 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: A power switching control device for electric systems such as an ignition device for internal combustion engines has a control circuit IC and a switching IC. A temperature sensor is provided in the switching IC. The control circuit IC is joined to a grounding terminal through a conductive layer provided therebetween. Thus, the substrate potential of the control circuit IC is stabilized to the ground potential so that the temperature sensor is prohibited to operate erroneously due to electromagnetic noise.

Abstract translation: 用于诸如内燃机的点火装置的电气系统的电力切换控制装置具有控制电路IC和开关IC。 在开关IC中设置温度传感器。 控制电路IC通过其间设置的导电层与接地端子接合。 因此，控制电路IC的基板电位稳定在接地电位，使得温度传感器被禁止由于电磁噪声而错误地操作。

公开(公告)号：US20050252496A1

公开(公告)日：2005-11-17

申请号：US11118327

申请日：2005-05-02

Applicant: Koji Ando ,  Haruo Kawakita

Inventor： Koji Ando ,  Haruo Kawakita

IPC: F02P3/05 ,  F02P3/055 ,  F02P11/00

CPC classification number: F02P3/0552

Abstract: An ignition device for an internal combustion engine includes a power transistor connected to a primary coil of an ignition coil, a current sensing resistor connected in series with the power transistor, a constant current circuit and an abnormal oscillation control circuit that connects the gate resistor with the feedback circuit when the constant current circuit controls the primary current to be constant. The constant current circuit has a gate resistor connected in series to the control gate of the power transistor and a feedback circuit connected between the gate resistor and the current sensing resistor and controls current supplied to a control gate of the power transistor so as to control the primary current to be constant.

Abstract translation: 一种用于内燃机的点火装置包括连接到点火线圈的初级线圈的功率晶体管，与功率晶体管串联的电流感测电阻器，恒流电路和异常振荡控制电路，其将栅极电阻器与 当恒流电路控制初级电流恒定时，反馈电路。 恒流电路具有串联连接到功率晶体管的控制栅极的栅极电阻器和连接在栅极电阻器和电流检测电阻器之间的反馈电路，并且控制提供给功率晶体管的控制栅极的电流，以便控制 初级电流恒定。

公开(公告)号：US06823841B2

公开(公告)日：2004-11-30

申请号：US10476683

申请日：2004-05-18

Applicant: Wilfried Schmolla

Inventor： Wilfried Schmolla

IPC: F02P500

CPC classification number: F02P3/0552 ,  F02P3/051 ,  F02P7/02 ,  F02P15/10

Abstract: The invention relates to an ignition system for a 14 V or 42 V on-board power system voltage which is connected to the ignition transformer directly via the semiconductor power output stage without an intermediate power unit. After an input signal from a superordinate engine control device, the semiconductor power output stage is switched on by an ignition control device. As a result, a current is built up at the primary side of the ignition transformer. After the predefined maximum current value is reached for the first time, the primary side of the ignition transformer is switched off for a predefined time period. In this time period, a maximum voltage for the spark breakdown is built up at the electrodes of the spark plug according to the principle of self induction. After the spark discharge, the primary side of the ignition transformer is timed and current-limited until the end of the ignition process which is predefined by the superordinate engine control device. The timed control operates with selected, predefined time intervals for switching the semiconductor power output stage alternately on and off. A current limitation is superimposed on the timed control and switches off the primary side of the ignition transformer whenever the primary current reaches a predefined maximum value.

Abstract translation: 本发明涉及一种用于14V或42V车载电力系统电压的点火系统，其直接经由半导体功率输出级而不用中间功率单元连接到点火变压器。 在来自上级发动机控制装置的输入信号之后，通过点火控制装置接通半导体功率输出级。 结果，在点火变压器的初级侧积聚电流。 在第一次达到预定义的最大电流值之后，点火变压器的初级侧断开预定的时间段。 在该时间段内，根据自感原理，在火花塞的电极处形成火花击穿的最大电压。 在火花放电之后，点火变压器的初级侧被定时和限流直到由上级发动机控制装置预定的点火过程结束。 定时控制以选定的预定义时间间隔进行操作，以交替地切换半导体功率输出级。 只要初级电流达到预定的最大值，电流限制就叠加在定时控制上，并关闭点火变压器的初级侧。

公开(公告)号：US06167876A

公开(公告)日：2001-01-02

申请号：US09202671

申请日：1999-09-07

Applicant: Manfred Uebele ,  Horst Meinders ,  Ning Qu

Inventor： Manfred Uebele ,  Horst Meinders ,  Ning Qu

IPC: F02P100

CPC classification number: F02P3/0442 ,  F02P3/0552

Abstract: A circuit arrangement of an ignition output stage, in particular for an ignition circuit of a motor vehicle, is described. The circuit arrangement includes a multiple Darlington transistor (Darlington) which drives a primary winding of an ignition coil, as well as a driving circuit for the Darlington. An n-p-n Darlington is provided, whose collector is connected to the positive terminal of a voltage source and whose emitter is connected to a first terminal of the primary winding of the ignition coil. The second terminal of the primary winding is connected to ground. The Darlington is driven via a decoupling element which isolates the driving circuit from a negative reverse voltage present at the base of the Darlington when the latter is turned off.

Abstract translation: 描述了点火输出级的电路装置，特别是用于机动车辆的点火电路。 电路装置包括驱动点火线圈的初级绕组的多达林顿晶体管（达林顿）以及达林顿的驱动电路。 提供n-p-n达林顿，其集电极连接到电压源的正极端子，其发射极连接到点火线圈的初级绕组的第一端子。 初级绕组的第二端连接到地。 达林顿通过去耦元件驱动，该解耦元件将驱动电路与达林顿基地的负反向电压隔离，后者关闭。

公开(公告)号：US5819713A

公开(公告)日：1998-10-13

申请号：US762092

申请日：1996-12-09

Applicant: Scott Birk Kesler

Inventor： Scott Birk Kesler

IPC: F02P3/055 ,  F02P11/00

CPC classification number: F02P3/0552 ,  F02P11/00 ,  Y10T307/469 ,  Y10T307/484

Abstract: An automotive ignition control system includes a vehicle control computer operable to provide electronic spark timing (EST) signals, a control circuit having a number of coil drive circuits connected thereto, a corresponding number of coil driver devices connected to respective ones of the coil drive circuits and a corresponding number of ignition coils connected to respective ones of the coil driver devices. The control circuit is responsive to an active state of any one of the EST signals to activate a corresponding one of the coil driver devices while inhibiting activation of all others. If any EST signal remains in an active state for an excessive time period, the control circuit is operable to lock-out the corresponding coil driver device from operation until such a fault condition is cleared. The control circuit is preferably operable to accomplish the lock-out function by gradually decreasing the coil current associated with the faulty EST signal in a fashion that does not generate a spark event.

Abstract translation: 一种汽车点火控制系统，包括可操作以提供电子火花定时（EST）信号的车辆控制计算机，具有连接到其上的多个线圈驱动电路的控制电路，连接到相应线圈驱动电路的相应数量的线圈驱动器件 以及连接到各个线圈驱动器装置的相应数量的点火线圈。 所述控制电路响应任何一个所述EST信号的有效状态，以激活所述线圈驱动器装置中的相应一个，同时抑制所有其它信号的激活。 如果任何EST信号在过长的时间段内保持在活动状态，则控制电路可操作以将相应的线圈驱动器设备锁定在运行状态，直到故障状态被清除为止。 控制电路优选地可操作以通过以不产生火花事件的方式逐渐减小与故障EST信号相关联的线圈电流来实现锁定功能。

公开(公告)号：US5775310A

公开(公告)日：1998-07-07

申请号：US773087

申请日：1996-12-24

Applicant: Takahashi Ito ,  Katsuaki Fukatsu ,  Noboru Sugiura

Inventor： Takahashi Ito ,  Katsuaki Fukatsu ,  Noboru Sugiura

IPC: F02P3/05 ,  F02P3/055 ,  F02P3/04

CPC classification number: F02P3/051 ,  F02P3/0552

Abstract: An igniter for an internal combustion engine includes a switching element performing flow and break control for a primary current flowing through an ignition coil depending upon a spark control signal output from an electronic engine control unit and a current limiting circuit limiting a current flowing through the switching element. The switching element is formed with an insulated gate bipolar transistor. The igniter further comprises a current detecting load element for detecting current flowing through the insulated gate bipolar transistor, and a diode being provided between the current detecting load element and the self-isolation N-MOS transistor, which diode having an opposite temperature coefficient to that of the current detecting load element. Also, in order to certainly provide a contact current of a connection terminal between the electronic engine control unit and the igniter and to assure detecting of circuit breakage between the electronic engine control unit and the igniter, an input impedance of the igniter is set intentionally or a current adjusting bleeder resistor is set to flow a current greater than or equal to 1 mA through the connecting portion.

Abstract translation: 用于内燃机的点火器包括开关元件，其根据从电子发动机控制单元输出的火花控制信号和限制流经切换的电流的限流电路，对流过点火线圈的初级电流进行流量和断开控制 元件。 开关元件由绝缘栅双极晶体管形成。 点火器还包括用于检测流过绝缘栅双极晶体管的电流的电流检测负载元件，以及设置在电流检测负载元件和自隔离N-MOS晶体管之间的二极管，该二极管具有与之相反的温度系数 的电流检测负载元件。 此外，为了确保提供电子发动机控制单元和点火器之间的连接端子的接触电流，并且确保检测电子发动机控制单元和点火器之间的电路断路，有意设置点火器的输入阻抗， 电流调节放电电阻被设置为通过连接部分流过大于或等于1mA的电流。