公开(公告)号：US20170117078A1

公开(公告)日：2017-04-27

申请号：US15301789

申请日：2015-04-07

申请人： DENSO CORPORATION

发明人： Kenta KYOUDA ,  Satoru NAKAYAMA

IPC分类号： H01F7/06 ,  F02P3/09 ,  H01F38/12 ,  F02P15/10

CPC分类号： F02P15/10 ,  F02D2200/101 ,  F02P3/0442 ,  F02P3/0846 ,  F02P3/0876 ,  F02P3/09 ,  F02P5/15 ,  F02P9/007 ,  F02P17/12 ,  H01F7/064 ,  H01F38/12 ,  Y02T10/46

摘要： An ignition apparatus includes a blow-off determining unit. The blow-off determining unit determines, when a secondary electric current drops below a predetermined threshold value Ia during a determination period, that blow-off has occurred; the determination period is a predetermined time period ΔT from the start of a spark discharge by a main ignition circuit. Further, when it is determined that blow-off has occurred during a main ignition (full-transistor ignition), it is controlled to perform a continuing spark discharge after the main ignition in a next cycle. Moreover, a secondary electric current command value I2a in performing the continuing spark discharge is set to an electric current value that is obtained by adding a predetermined electric current value α to the predetermined threshold value Ia used in the blow-off determination. Consequently, in the next cycle, it is possible to reliably prevent blow-off, thereby reliably preventing a misfire.

公开(公告)号：US20170114767A1

公开(公告)日：2017-04-27

申请号：US15301795

申请日：2015-04-10

申请人： DENSO CORPORATION

发明人： Takashi OONO ,  Shunichi TAKEDA ,  Kanechiyo TERADA ,  Yuuto TAMEI

IPC分类号： F02P3/08 ,  F02P15/10 ,  F02P11/00

CPC分类号： F02P3/0807 ,  F02P3/04 ,  F02P3/0876 ,  F02P3/0892 ,  F02P9/007 ,  F02P11/00 ,  F02P15/10

摘要： A maximum value of a discharge current from a capacitor 13, detected by a primary-side current detection means 24 disposed at a grounded end of the capacitor 13, is controlled such as not to exceed a predetermined first control value Y1. The first control value Y1 is derived based on magnetic saturation of a primary winding 3, with the control being performed by controlling the on-off state of an energy injection switching means 20. As a result, magnetic saturation of the primary winding 3 can be prevented, and the reliability of an ignition apparatus which incorporates an energy injection circuit 6 can be increased.

公开(公告)号：US20170045025A1

公开(公告)日：2017-02-16

申请号：US15039857

申请日：2014-11-28

申请人： DENSO CORPORATION

发明人： Satoru NAKAYAMA ,  Makoto TORIYAMA ,  Akimitsu SUGIURA ,  Masahiro ISHITANI ,  Atsuya MIZUTANI ,  Kouji ANDOH ,  Naoto HAYASHI ,  Kaori DOI

IPC分类号： F02P15/10 ,  F02P17/12 ,  F02P5/145 ,  F02P3/05 ,  F02P3/04

CPC分类号： F02P15/10 ,  F02P3/0407 ,  F02P3/0442 ,  F02P3/05 ,  F02P3/051 ,  F02P3/0892 ,  F02P5/145 ,  F02P5/15 ,  F02P9/002 ,  F02P9/007 ,  F02P17/12 ,  Y02T10/46

摘要： An ignition device at least equipped with a DC power source, an ignition coil unit, a spark plug, an ignition switch, and an auxiliary power source, wherein the auxiliary power source is at least equipped with a discharge energy accumulating means, a discharge switch, and a discharge driver. The ignition device is further equipped with a secondary-current feedback controlling means comprising a secondary current detecting means for detecting a secondary current flowing during the ignition coil unit discharge period, and a secondary current feedback control circuit-for determining an upper limit and a lower limit for the secondary current from binary threshold values, and driving so as to open and close the discharge switch on the basis of the determination results. Furthermore, energy is introduced from the auxiliary power source without switching the polarity of the secondary current.

摘要翻译： 一种至少配备有直流电源，点火线圈单元，火花塞，点火开关和辅助电源的点火装置，其中辅助电源至少配备有放电能量积存装置，放电开关 ，和放电驱动器。 点火装置还配备有二次电流反馈控制装置，该二次电流反馈控制装置包括用于检测在点火线圈单元放电时段期间流动的次级电流的二次电流检测装置和用于确定上限和下限的次级电流反馈控制电路 根据二进制阈值限制二次电流，并根据确定结果进行驱动以便打开和关闭放电开关。 此外，从辅助电源引入能量而不切换次级电流的极性。

公开(公告)号：US20170022957A1

公开(公告)日：2017-01-26

申请号：US15302540

申请日：2015-04-07

申请人： DENSO CORPORATION

发明人： Naoto HAYASHI ,  Makoto TORIYAMA ,  Kaori DOI ,  Kenechiyo TERADA ,  Kenta KYOUDA ,  Satoru NAKAYAMA

IPC分类号： F02P3/045 ,  F02P15/08 ,  F02P9/00

CPC分类号： F02P3/045 ,  F02P3/0876 ,  F02P5/15 ,  F02P9/00 ,  F02P9/002 ,  F02P9/007 ,  F02P15/08 ,  F02P15/10

摘要： An ignition apparatus inputs energy during a predetermined energy input period after the interruption of a primary electric current by an ignition switch and a discharge of an ignition plug caused by a secondary electric current. Moreover, the ignition apparatus includes a blow-off detection unit that detects, during the energy input period IGW after the start of the discharge by the ignition plug, occurrence of blow-off of the discharge. When the secondary electric current I2 drops below a blow-off detection electric current threshold value Ibo at a time instant tbo in a “second region” where it is impossible to perform a re-discharge after blow-off, the blow-off detection unit determines that blow-off has occurred and the ignition apparatus stops the energy input from an energy input unit to an ignition coil. By preventing unnecessary energy input, it is possible to suppress unnecessary electric power consumption and wear of electrodes of the ignition plug.

摘要翻译： 点火装置在通过点火开关中断初级电流之后的预定能量输入期间和由二次电流引起的火花塞的放电时输入能量。 此外，点火装置包括吹出检测单元，其在通过火花塞开始放电之后的能量输入期间IGW期间检测放电的发生。 当二次电流I2在不能在吹出后进行再放电的“第二区域”中的时刻tbo的时间点下降到低于泄漏检测电流阈值Ibo时，吹出检测单元 确定已经发生吹出，并且点火装置停止从能量输入单元到点火线圈的能量输入。 通过防止不必要的能量输入，可以抑制火花塞的电极的不必要的电力消耗和磨损。

公开(公告)号：US20160281673A1

公开(公告)日：2016-09-29

申请号：US15036040

申请日：2014-10-16

申请人： ROBERT BOSCH GMBH

发明人： Tim Skowronek ,  Thomas Pawlak ,  Wolfgang Sinz

IPC分类号： F02P5/15 ,  F02P9/00

CPC分类号： F02P5/1502 ,  F02P3/0407 ,  F02P5/1516 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10 ,  F02P17/12 ,  F02P2017/121 ,  Y02T10/46

摘要： A method is described for operating an ignition system for an internal combustion engine, including a primary voltage generator and a boost converter for maintaining a spark generated with the aid of the primary voltage generator. An ascertainment of a modified energy requirement for an ignition spark to be maintained with the aid of the boost converter is followed by a modification of a switch-on time of the boost converter relative to a switch-off time of the primary voltage generator.

摘要翻译： 描述了一种用于操作用于内燃机的点火系统的方法，其包括用于维持借助于初级电压发生器产生的火花的初级电压发生器和升压转换器。 借助于升压转换器来确定点火火花的修正的能量需求的确定之后是升压转换器相对于初级电压发生器的关断时间的接通时间的修改。

公开(公告)号：US20160084215A1

公开(公告)日：2016-03-24

申请号：US14783695

申请日：2014-04-11

申请人： DENSO CORPORATION

发明人： Yuuki KONDOU ,  Masahiro ISHITANI ,  Satoru NAKAYAMA ,  Akimitsu SUGIURA ,  Makoto TORIYAMA ,  Takashi OONO

IPC分类号： F02P15/08 ,  F02P5/15 ,  F02P3/05

CPC分类号： F02P15/08 ,  F02P3/0435 ,  F02P3/05 ,  F02P5/15 ,  F02P5/1502 ,  F02P15/10 ,  Y02T10/46

摘要： An ignition apparatus includes an adjuster. The adjuster adjusts, according to at least one of a primary voltage and a secondary voltage detected by a voltage detector, at least one of an application timing and an application level of auxiliary electrical energy to an ignition coil while main electrical energy is applied to a spark plug by the ignition coil. The application timing includes whether the auxiliary electrical energy is applied to the ignition coil.

摘要翻译： 点火装置包括调节器。 调节器根据电压检测器检测到的初级电压和次级电压中的至少一种调节辅助电能的施加定时和施加水平中的至少一个到点火线圈，同时主电能被施加到 火花塞由点火线圈。 施加定时包括辅助电能是否施加到点火线圈。

公开(公告)号：US09231382B2

公开(公告)日：2016-01-05

申请号：US13881391

申请日：2011-08-18

申请人： Kohei Katsuraya ,  Tatsunori Yamada ,  Katsutoshi Nakayama

发明人： Kohei Katsuraya ,  Tatsunori Yamada ,  Katsutoshi Nakayama

IPC分类号： H01T13/40 ,  F02P9/00 ,  F02P3/00 ,  F02P23/04

CPC分类号： H01T13/40 ,  F02P3/00 ,  F02P3/01 ,  F02P3/02 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10 ,  F02P23/04 ,  F02P23/045

摘要： A technique of improving the life of a spark plug which generates spark discharge and AC plasma. A plasma ignition device includes a power control section which reduces AC power P after generation of AC plasma in an AC power supply period Sa during which the AC power P is continuously supplied to a spark plug within a maintainable power range Rp within which the AC plasma can be maintained.

摘要翻译： 一种提高产生火花放电和AC等离子体的火花塞寿命的技术。 等离子体点火装置包括功率控制部分，其在交流电源周期Sa中产生AC等离子体之后降低AC功率P，在AC电源周期Sa期间，在可交流功率范围Rp内将AC功率P连续提供给火花塞，其中AC等离子体 可以维护。

公开(公告)号：US20150361945A1

公开(公告)日：2015-12-17

申请号：US14833291

申请日：2015-08-24

申请人： Woodward, Inc.

发明人： Gregory James Hampson ,  Domenico Chiera

IPC分类号： F02P15/10

CPC分类号： F02P15/10 ,  H01T13/54 ,  Y10T29/49002

摘要： A pre-chamber spark plug that includes a shell, and an end cap attached to the shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell and end cap. In a further embodiment, a ground electrode is attached to the shell. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life.

摘要翻译： 一种包括外壳和预先安装在外壳上的端盖的预充电器火花塞。 此外，预燃烧器火花塞包括设置在壳体内的绝缘体。 在特定实施例中，中心电极具有由绝缘体包围的第一部分和从绝缘体延伸到预充电室的第二部分。 由壳体和端盖限定的预制室。 在另一实施例中，接地电极附接到外壳。 在特定实施例中，接地电极是管状形状并且包括内部火花表面环，该内部火花表面环围绕中心电极间隔开以产生火花间隙，附接到壳体的外环以及连接内部和 外圈。 在特定实施例中，接地和中心电极适应贵金属合金的附着以增加电极的表面寿命。

公开(公告)号：US20150340206A1

公开(公告)日：2015-11-26

申请号：US14725454

申请日：2015-05-29

申请人： IMAGINEERING, INC

发明人： Yuji IKEDA

IPC分类号： H01J37/32 ,  H01J37/244

CPC分类号： H01J37/32155 ,  F02P3/02 ,  F02P5/1502 ,  F02P9/007 ,  F02P15/10 ,  F02P23/045 ,  H01J37/244 ,  H01J37/3211 ,  H01J37/32146 ,  H05H1/46 ,  H05H1/52 ,  H05H2001/463 ,  H05H2001/4682 ,  Y02T10/46

摘要： A plasma generating device that improves plasma generating efficiency can further accommodate changes in plasma generating state because of changes in conditions of surroundings and the like. The plasma generating device is provided with an electromagnetic wave radiating device, which has an electromagnetic wave generating device that oscillates electromagnetic waves and a radiating antenna that radiates electromagnetic waves oscillated by the electromagnetic wave generating device, and a control device that controls the electromagnetic wave radiating device. The electromagnetic wave radiating device is provided with a power detector that detects traveling wave power output by the electromagnetic wave generating device and reflected wave power reflected from the radiating antenna, and the control device automatically controls the oscillation pattern for the electromagnetic waves on the basis of the proportion of the value for the reflected wave power to the value for the traveling wave power detected by the power detector.

摘要翻译： 改善等离子体产生效率的等离子体产生装置可以由于周围环境等的变化而进一步适应等离子体生成状态的变化。 等离子体产生装置具有电磁波发射装置，该电磁波辐射装置具有振荡电磁波的电磁波产生装置和辐射由电磁波发生装置振荡的电磁波的辐射天线，以及控制电磁波辐射的控制装置 设备。 电磁波辐射装置设有检测由电磁波产生装置输出的行波功率和从辐射天线反射的反射波功率的功率检测器，并且控制装置基于以下方式自动控制电磁波的振荡模式： 反射波功率的值与由功率检测器检测到的行波功率的值的比例。

公开(公告)号：US20150219063A1

公开(公告)日：2015-08-06

申请号：US14426514

申请日：2013-09-12

申请人： ROBERT BOSCH GMBH

发明人： Thomas Pawlak ,  Tim Skowronek

IPC分类号： F02P7/03 ,  H01T15/00

CPC分类号： F02P7/03 ,  F02P3/01 ,  F02P15/10 ,  H01T15/00

摘要： An ignition system includes: a step-up transformer having a primary side and a secondary side; an electrical energy source configured to be selectably connected to the primary side; a spark gap which is configured to guide a current transferred by the step-up transformer to the secondary side. The step-up transformer has a bypass for transferring electrical energy from the electrical energy source to the secondary side. The ignition system is configured to couple electrical energy in series or in parallel to the secondary side of the high voltage generator for the purpose of maintaining an ignition spark as an electrical voltage in the form of a controlled pulse sequence, e.g., within the kilo-hertz range.

摘要翻译： 点火系统包括：具有初级侧和次级侧的升压变压器; 被配置为可选地连接到所述初级侧的电能源; 火花隙，其配置为将由升压变压器传送的电流引导到次级侧。 升压变压器具有用于将电能从电能源传递到次级侧的旁路。 点火系统被配置为将电能串联或并联连接到高压发生器的次级侧，目的是将点火火花保持为受控脉冲序列形式的电压，例如， 赫兹范围。