公开(公告)号：JP2002364508A

公开(公告)日：2002-12-18

申请号：JP2002014741

申请日：2002-01-23

Applicant: NIPPON SOKEN ,  DENSO CORP

Inventor： YORITA HIROSHI ,  IKEDA MASATOSHI ,  TORIYAMA MAKOTO ,  YOSHINAGA TORU

IPC: F02P3/04 ,  F02D45/00 ,  F02P17/12

Abstract: PROBLEM TO BE SOLVED: To improve an ion current detection accuracy and accordingly accurately determine the state of combustion. SOLUTION: In an ignition coil 21, a transistor 23 is connected to a primary winding 21a and a current detecting resistance 26 is connected to a secondary winding 21b. A current flowing across the counter electrodes 11 and 12 of an ignition plug 10 is detected by the current detecting resistance 26. When ignition is made by the ignition plug 10, a high speed rectangular wave signal (repetition signal) by an oscillator 25 is outputted after an ignition signal IGT is cut out, and the transistor 23 is turned ON/OFF by the rectangular wave signal. By this, a battery voltage is intermittently applied to the primary winding 21a of the ignition coil 21, and an ion current is measured by the application of the voltage. In this case, the frequency of the rectangular wave signal caused by the oscillator 25 is set so as to match the resonance frequency f0 of the ion current route comprising the ignition plug 10, the secondary winding 21b of the ignition coil 21, and the current detecting resistance 26.

公开(公告)号：JP2015025397A

公开(公告)日：2015-02-05

申请号：JP2013154603

申请日：2013-07-25

Applicant: 株式会社デンソー ,  Denso Corp

Inventor： KONDO YUKI ,  ISHITANI MASAHIRO ,  NAKAYAMA SATORU ,  SUGIURA AKIMITSU ,  TORIYAMA MAKOTO

IPC: F02P3/00 ,  F02P15/10

Abstract: 【課題】ロバスト性の向上、電極消耗の抑制、省電力を同時に実現可能な優れた点火装置を提供する。【解決手段】点火用開閉素子3の開閉によって、点火プラグ5の放電を開始した後に放電維持を図るためのエネルギを供給すべく、昇圧回路1からの放電と停止とを重畳的に行うことによって、二次巻線41に流れる電流を増加する補助用電源2と、該補助用電源2が、補助用電源2からの放電と停止とを切り替える補助用開閉素子20と、補助用開閉素子20の開閉駆動周波数を増減する周波数演算部210とを具備する。【選択図】図1

Abstract translation: 要解决的问题：提供能够同时实现鲁棒性的提高，电极磨损抑制和省电的优异的点火装置。解决方案：点火装置包括辅助电源2，其通过执行向副绕组41增加流动的电流 从升压电路1放电，并通过打开和关闭用于点火的打开/关闭元件3，在启动点火塞5的放电之后以重叠的方式停止供应能量以保持放电。 辅助电源2包括用于切换来自辅助电源2和停止部的放电的辅助开闭元件20，以及用于增加和减少辅助开闭元件的打开/关闭驱动频率的频率计算部分210 20。

公开(公告)号：JP2014218997A

公开(公告)日：2014-11-20

申请号：JP2014043013

申请日：2014-03-05

Applicant: 株式会社デンソー ,  Denso Corp

Inventor： ISHITANI MASAHIRO ,  SUGIURA AKIMITSU ,  TORIYAMA MAKOTO ,  NAKAYAMA SATORU ,  KONDO YUKI ,  TAKEDA SHUNICHI ,  ONO TAKASHI ,  MORITA NAOHARU ,  HAYASHI MASATO ,  TAMEI HISAO

IPC: F02P15/10 ,  F02P3/04

CPC classification number: F02P3/0435 ,  F02P11/06 ,  F02P15/10

Abstract: 【課題】いわゆる「吹き消え」の発生及びこれに伴う点火エネルギのロスを、簡略な装置構成によって良好に抑制すること。【解決手段】点火制御装置(30)は、一次巻線(311a)における、直流電源(312)に接続された一端とは反対の他端側に、一次電流を供給可能に構成されている。点火放電中に第二スイッチング素子(314)がオンされることで、当該第二スイッチング素子を介して、エネルギが他端側から一次巻線に供給される。すると、一次電流が通流する。このとき、それまで通流していた放電電流に対して、かかる一次電流の通流に伴う追加分が重畳される。これにより、放電電流が、点火放電を維持可能な程度に良好に確保される。【選択図】図2

Abstract translation: 要解决的问题：利用简单的装置结构，有利地抑制伴随着吹出的所谓的“吹离”和点火能量损失。解决方案：点火控制装置（30）被配置为能够 向与初级绕组（311a）中的直流电源（312）连接的一端相对的另一端侧供给初级电流。 通过点火放电期间第二开关元件（314）的调谐，能量经由第二开关元件从另一端供给初级绕组。 然后，初级电流流通。 此时，伴随着初级电流的循环的附加量叠加在已经循环的放电电流上。 通过这种结构，可以有利地将放电电流固定在能够在点火放电中保持的水平。

公开(公告)号：JP2014084721A

公开(公告)日：2014-05-12

申请号：JP2012231552

申请日：2012-10-19

Applicant: Denso Corp ,  株式会社デンソー

Inventor： NAKAYAMA SATORU ,  TORIYAMA MAKOTO ,  IMANAKA TAISHIN ,  KAJITA YUJI

IPC: F02P3/04 ,  F02P3/045 ,  F02P3/05

Abstract: PROBLEM TO BE SOLVED: To further enhance in cost, reliability and mountability, for instance, in an ignition device capable of purposively controlling or setting secondary voltage or discharge voltage.SOLUTION: An ignition device (10) includes an operational amplifier (181), a reference voltage output part (183) and an operational amplifier output side circuit (185). Input side terminals (1811, 1812) of the operational amplifier are connected to the reference voltage output part and a power supply side terminal (14C) of a semiconductor switching element (14), and an output side terminal (1813) is connected to a control terminal (14G) of the semiconductor switching element through the operational amplifier output side circuit. The control terminal (14G) is energized by an operational amplifier output based on primary voltage and reference voltage of an ignition coil (12).

Abstract translation: 要解决的问题：为了进一步提高成本，可靠性和安装性，例如能够有意地控制或设定二次电压或放电电压的点火装置。解决方案：点火装置（10）包括运算放大器（181）， 参考电压输出部分（183）和运算放大器输出侧电路（185）。 运算放大器的输入侧端子（1811,1812）连接到参考电压输出部分和半导体开关元件（14）的电源侧端子（14C），并且输出侧端子（1813）连接到 通过运算放大器输出侧电路的半导体开关元件的控制端子（14G）。 控制端子（14G）由基于点火线圈（12）的初级电压和参考电压的运算放大器输出通电。

公开(公告)号：JP2007211631A

公开(公告)日：2007-08-23

申请号：JP2006030532

申请日：2006-02-08

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TORIYAMA MAKOTO ,  YAMAUCHI YUUKI

IPC: F02P15/10

Abstract: PROBLEM TO BE SOLVED: To provide an ignition control device of an internal combustion engine capable of securing the magnitude of the current flowing in an ignition plug in multiple discharge.
SOLUTION: A battery 11, an energy accumulating coil 12, and an IGBT 13 are connected in series to each other. The energy accumulating coil 12, a diode 14, a primary side coil 21a, and an IGBT 22 are connected in series to each other. A capacitor 15 is connected to the energy accumulating coil 12 with the diode 14 interposed therebetween. The ignition plug and a resistor 24 for current detection are connected to a secondary side coil 21b. During the multiple discharge, an ignition control circuit 30 switches the on and off of the IGBT 13, 22 every time a secondary side current I2 detected by the resistor 23 for current detection reaches positive and negative discharge maintaining currents.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供一种内燃机的点火控制装置，其能够确保在多次放电中在火花塞中流动的电流的大小。 解决方案：电池11，蓄能线圈12和IGBT 13彼此串联连接。 蓄能线圈12，二极管14，初级侧线圈21a，IGBT22彼此串联连接。 电容器15与蓄电线圈12连接，二极管14插入其间。 火花塞和用于电流检测的电阻器24连接到次级侧线圈21b。 在多次放电期间，点火控制电路30每当由用于电流检测的电阻器23检测到的次级侧电流I2达到正和负的放电维持电流时，切换IGBT13,22的导通和截止。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2002213336A

公开(公告)日：2002-07-31

申请号：JP2001007811

申请日：2001-01-16

Applicant: NIPPON SOKEN ,  DENSO CORP

Inventor： IKEDA MASATOSHI ,  YORITA HIROSHI ,  TORIYAMA MAKOTO

IPC: G01M15/04 ,  F02D35/00 ,  F02D41/22 ,  F02D45/00 ,  F02P17/12 ,  G01M15/00

Abstract: PROBLEM TO BE SOLVED: To accurately detect the combustion ion current regardless of a certain amount of a lag in the detecting timing. SOLUTION: An ignition plug 10 is mounted in a combustion chamber of a first cylinder, and an ignition plug 20 is mounted in a combustion chamber of a fourth cylinder. An oscillator 33 generates a rectangular wave signal of a frequency of about 30 kHz, whereby the AC voltage is applied between the counter electrodes of the ignition plugs 10, 20. The electric current flowing between the counter electrodes of each of the ignition plugs 10, 20 is detected by current detecting resistors 16, 26. A differential amplifying circuit 40 takes the detected current of the cylinder (for example, first cylinder) in a combustion stroke and the detected current of the cylinder (for example, forth cylinder) not in a combustion stroke, and an absolute value circuit 50 takes the output of the differential amplifying circuit 40 to provide its absolute value. An S/H circuit 60 samples and holds the output of the absolute value circuit 50 with a phase to maximize the AC voltage, and outputs the same as a current signal.

公开(公告)号：JP2002168170A

公开(公告)日：2002-06-14

申请号：JP2000367027

申请日：2000-12-01

Applicant: NIPPON SOKEN ,  DENSO CORP

Inventor： IKEDA MASATOSHI ,  YORITA HIROSHI ,  TORIYAMA MAKOTO

IPC: F02P3/08 ,  F02P15/08 ,  F02P17/12

Abstract: PROBLEM TO BE SOLVED: To simplify a structure and increase detecting accuracy of ionic current. SOLUTION: An ignition device 10 has a battery 11, an energy storing coil 12 and a transistor 13 connected in series. A primary coil 17 of an ignition coil 16 and a transistor 19 are connected in series between the energy storing coil 12 and the transistor 13. A drive circuit 31 turns alternately on the transistors 13, 19 during a conducting period of an ignition plug 20 for a multiple discharge. The drive circuit 31 turns on/off the transistor 19 with a period shorter than a cycle within the conducting period. In this case, discharge energy generated at every cycle is small, and therewith a relatively low level voltage is applied to the ignition plug 20. Accordingly the ionic current is measured with the voltage as a power source.

公开(公告)号：JP2014206061A

公开(公告)日：2014-10-30

申请号：JP2013082712

申请日：2013-04-11

Applicant: 株式会社デンソー ,  Denso Corp

Inventor： KONDO YUKI ,  ISHITANI MASAHIRO ,  NAKAYAMA SATORU ,  SUGIURA AKIMITSU ,  TORIYAMA MAKOTO

IPC: F02P3/00 ,  F02P15/10

Abstract: 【課題】ロバスト性の向上、電極消耗の抑制、省電力を同時に実現可能な優れた点火装置を提供する。【解決手段】点火装置1は、点火用開閉素子5の開閉によって、点火プラグ7の放電を開始した後に放電維持を図るためのエネルギを供給すべく、昇圧回路2からの放電と停止とを重畳的に行うことによって、二次コイル42に流れる電流を増加する補助用電源3と、点火プラグ7の放電が開始された後に一次コイル41に印加される一次電圧V1を検出する一次電圧検出回路61と、検出した一次電圧V1に応じて、補助用電源3の駆動の要否を判定する補助用電源要否判定回路62とからなる一次電圧監視手段6を具備する。【選択図】図1

Abstract translation: 要解决的问题：提供一种能够同时实现鲁棒性能的提高，功耗和功率节省的抑制的优良点火器。解决方案：点火器1包括初级电压监测装置6，其包括辅助电源3 其通过从升压电路2进行放电而增加在次级线圈42中流动的电流，并且放电停止以便重叠，以便在点火开始之后提供用于维持放电的能量 插头7通过点火开关元件5的打开/关闭; 一次电压检测电路61，其检测在火花塞7的放电开始之后施加到初级线圈41的初级电压V1; 以及根据检测到的一次电压V1确定辅助电源3的驱动的必要性的辅助电力需求判定电路62。

公开(公告)号：JP2013011181A

公开(公告)日：2013-01-17

申请号：JP2011142779

申请日：2011-06-28

Applicant: Denso Corp ,  株式会社デンソー

Inventor： ITO KENJI ,  TAKEDA SHUNICHI ,  TORIYAMA MAKOTO ,  FUKAZAWA TAKESHI

IPC: F02P3/04 ,  H01F38/12 ,  H01L27/04 ,  H01L29/739 ,  H01L29/78

CPC classification number: H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/00014 ,  H01L2924/00

Abstract: PROBLEM TO BE SOLVED: To make both compatible in achieving high pressure of secondary voltage, shortening an ignition response time and reducing cutoff noise.SOLUTION: This ignition control device includes a main IGBT 31 (a switching element for ignition) for controlling current-carrying and cutoff to a primary coil 11, and a sub-IGBT 32 (a switching element for feedback) connected between a collector Cm and a gate Gm of the main IGBT 31 and controlling whether or not to feed back by impressing voltage of the collector Cm on the gate Gm. A parasitic capacitor Cpara existing between the collector Cs (a feedback input terminal) and the gate Gs (a feedback electric continuity control terminal) of the sub-IGBT 32, is charged with cutoff noise voltage generated in the collector Cm in response to OFF operation of the main IGBT 31, the sub-IGBT 32 performs ON operation by increasing control voltage of the gate Gs by this charge, and the sub-IGBT 32 also performs OFF operation by reducing the control voltage by discharging the parasitic capacitor Cpara.

Abstract translation: 要解决的问题：使二次电压达到高压兼容，缩短点火响应时间并减少截止噪声。 解决方案：该点火控制装置包括用于控制与初级线圈11的通电和截止的主IGBT31（用于点火的开关元件）和连接在初级线圈11之间的副IGBT32（反馈用开关元件） 集电极Cm和主IGBT31的栅极Gm，并通过在栅极Gm上施加集电极Cm的电压来控制是否反馈。 存在于集电极Cs（反馈输入端子）与副IGBT32的栅极Gs（反馈电连续性控制端子）之间的寄生电容器Cpara被充电，其中响应于OFF操作在集电极Cm中产生的截止噪声电压 在主IGBT31的情况下，副IGBT32通过增加栅极Gs的控制电压来进行ON动作，副IGBT32也通过对寄生电容Cpara进行放电来降低控制电压而进行OFF动作。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2006046241A

公开(公告)日：2006-02-16

申请号：JP2004230611

申请日：2004-08-06

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TORIYAMA MAKOTO

IPC: F02P15/10 ,  F02P3/00 ,  F02P11/00 ,  F02P17/00

CPC classification number: F02P15/08 ,  F02P3/0442 ,  F02P9/002

Abstract: PROBLEM TO BE SOLVED: To reduce number of signal lines of ECU and a drive circuit.
SOLUTION: Normal signal of ignition action output from the drive circuit 5 to the ECU 6 is set to "shortened normal action signal IGf-0(Hi)" of the shortest discharge section. Variable signal of a discharge section output rom the ECU 6 to the drive circuit 5 is set to "discharge section extension signal IGw-T(Hi)" during output of "IGf-0(Hi)" until end of a discharge section w. Reversed signal of "IGf-0(Hi)" and reversed signal "IGw-T(Hi)" are compounded and reversed to generate "discharge section signal IGw(Hi)" and in the drive circuit 5 and reversed signal of "IGf-0(Hi)" and reversed signal "IGw-T(Hi)" are compounded to generate "normal action signal IGf(Lo)" in the ECU 6. Reversed signal of "IGw-T(Hi)" and reversed signal "IGf-0(Hi)" can be transmitted with using common signal line δ and number of signal lines can be reduced.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：减少ECU和驱动电路的信号线数量。 解决方案：从驱动电路5向ECU 6输出的点火动作的正常信号被设定为“最短放电部分的正常动作信号IGf-0（Hi）”缩短。 在“IGf-0（Hi）”的输出期间，将ECU 6向驱动电路5输出的放电部的变量信号设定为“放电部延伸信号IGw-T（Hi）”直到放电部w的结束。 “IGf-0（Hi）”和反转信号“IGw-T（Hi）”的反相信号被复合并反相以产生“放电部分信号IGw（Hi）”，并且在驱动电路5中，反转信号“IGf- 0（Hi）“和反转信号”IGw-T（Hi）“被复合以在ECU 6中产生”正常动作信号IGf（Lo）“。”IGw-T（Hi）“的反相信号和反转信号”IGf -0（Hi）“可以使用公共信号线δ传输，信号线数可以减少。 版权所有（C）2006，JPO＆NCIPI