公开(公告)号：US10690106B2

公开(公告)日：2020-06-23

申请号：US15574082

申请日：2016-04-21

申请人： ELDOR CORPORATION S.P.A.

发明人： Pasquale Forte ,  Stefano Silva ,  Eugenio Carugati

IPC分类号： F02P9/00 ,  F02P15/10 ,  F02P3/04 ,  F02P5/15 ,  F02P17/12 ,  F02P3/02

摘要： An electronic ignition system for an internal combustion engine. The system includes an ignition coil provided with at least a primary winding and a secondary winding, a switch connected to the primary winding and drivable to be in an opened and/or closed position according to a value of a driving signal, a control unit associated to the switch and configured to drive the switch to be in the open position and/or closed position according to the value of the driving signal (G). The system may also include current detection means associated with the secondary winding, in which the control unit is associated with the detection means for receiving a signal representative of at least a current value in the secondary winding, and configured to control the switch according to said signal.

公开(公告)号：US10309366B2

公开(公告)日：2019-06-04

申请号：US15741526

申请日：2016-07-01

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Masashi Seimiya ,  Yoshihiko Akagi

IPC分类号： F02P3/00 ,  F02P15/00 ,  F02P3/05 ,  F02P15/10 ,  F02P15/02 ,  F02P17/12

摘要： Provided is an engine control device which can suppress a shortage of output terminals of the control unit and an increase of costs even in a multiple-cylinder internal combustion engine equipped with ignition energy supply units of two systems. An engine control device controls a multiple-cylinder engine in which ignition energy supply units of two systems are provided for every cylinder. A signal is transmitted through a common signal line to a plurality of ignition energy supply units of one system among the ignition energy supply units of the two systems to control the ignition energy supply units of the one system.

公开(公告)号：US20180266381A1

公开(公告)日：2018-09-20

申请号：US15573914

申请日：2016-05-12

申请人： DENSO CORPORATION ,  SOKEN, INC.

发明人： Hideaki KOSUGE ,  Fumiaki AOKI ,  Shohei ISHIDA ,  Shunichi TAKEDA ,  Kazuaki UEDA

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

摘要： An ignition apparatus for internal combustion engines is provided. The ignition apparatus is equipped with an ECU. The ECU monitors a path length of a discharge of a spark for a period of time in which a second circuit delivers or inputs energy in the form of a threshold value determination. When the path length has become too short, the ECU determines that ignition is expected to be delayed and then selects a special mode to control the delay of the ignition. The ECU increase a target value of an energy input amount. This enables the delay of ignition resulting from a short extension of the path length to be minimized. The ignition apparatus equipped with the second circuit to continue the discharge of sparks is, thus, capable of reducing a variation in ignition without the need for uniformly increasing the energy input amount.

公开(公告)号：US20180180014A1

公开(公告)日：2018-06-28

申请号：US15900841

申请日：2018-02-21

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 ,  F02P15/10 ,  F02P15/08 ,  F02P9/00 ,  F02P3/08 ,  F02P5/15

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.

公开(公告)号：US09964092B2

公开(公告)日：2018-05-08

申请号：US15243236

申请日：2016-08-22

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Satoshi Nakamura ,  Takashi Yoshida

IPC分类号： F02P5/15 ,  F02P9/00 ,  F02P5/152 ,  F02P15/10 ,  F02P3/04 ,  F02P3/08

CPC分类号： F02P5/1512 ,  F02P3/04 ,  F02P3/0876 ,  F02P5/152 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10 ,  Y02T10/46

摘要： An ECU outputs an ignition signal and a discharge waveform control signal. An ignition device performs a closing operation of an ignition switching device while the ignition signal is input into the ignition device. The ignition device adjusts a current flowing through a primary coil to a discharge current command value determined based on the discharge waveform control signal, by performing an opening-closing operation of a control switching device in a period in which the discharge waveform control signal is input into the ignition device after an input of the ignition signal into the ignition device is stopped. The ECU sets the discharge current command value that is a command value for a discharge current of a spark plug to a higher value as a rotation speed is higher, and prolongs a duration, in which discharge controller controls the discharge current, as the rotation speed is lower.

公开(公告)号：US09903335B2

公开(公告)日：2018-02-27

申请号：US15285841

申请日：2016-10-05

申请人： DENSO CORPORATION

发明人： Shota Kinoshita ,  Shinichi Okabe ,  Fumiaki Aoki ,  Akimitsu Sugiura

IPC分类号： F02P3/00 ,  F02P23/04 ,  F02P9/00 ,  F02P3/05 ,  F02P3/01 ,  F02P3/04 ,  F02P15/10

CPC分类号： F02P9/002 ,  F02P3/01 ,  F02P3/0435 ,  F02P3/05 ,  F02P9/007 ,  F02P15/10 ,  F02P23/04

摘要： An ignition device includes: an ignition plug producing plasma discharge between a pair of discharge electrodes of an ignition plug; an ignition coil provided with a primary coil and a secondary coil, the secondary coil applying voltage between the pair of discharge electrodes; a voltage applying unit applying alternating current voltage to the primary coil, a frequency of the alternating current voltage being set to produce voltage resonance in a circuit including the ignition plug and the secondary coil. The voltage applying unit sets an output period of the alternating current voltage to be longer than a first period at which a partial breakdown start to occur at the pair of discharge electrodes, and shorter than a second period at which a total breakdown occurs at the pair of discharge electrodes, when an air/fuel ratio is lower than a predetermined threshold.

公开(公告)号：US09897062B2

公开(公告)日：2018-02-20

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 ,  F02P5/15 ,  F02P9/00

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.

公开(公告)号：US09873315B2

公开(公告)日：2018-01-23

申请号：US14680734

申请日：2015-04-07

申请人： Plasma Igniter, LLC

发明人： Michael J. Spencer ,  Andrew D. Lowery ,  James E. Smith

IPC分类号： F02P23/04 ,  F02P9/00 ,  H01T13/50 ,  B60K5/00 ,  H05H1/46 ,  F02P3/01 ,  F02P15/10 ,  H01J37/32

CPC分类号： B60K5/00 ,  F02P3/01 ,  F02P9/007 ,  F02P15/10 ,  F02P23/045 ,  H01J37/32091 ,  H01J37/32247 ,  H01T13/50 ,  H05H1/46 ,  H05H2001/463

摘要： A plasma generator comprises a radio frequency power source, a coaxial cavity resonator assembly, and a direct current power source. The radio frequency power source provides a voltage supply of radio frequency power having a first ratio of power over voltage. The resonator assembly includes a center conductor coupled to the radio frequency power source, and also includes a virtual short circuit. The direct current power source is connected to the center conductor at the virtual short circuit, and provides a voltage supply of direct current power having a second ratio of power over voltage that is less than the first ratio.

公开(公告)号：US09546637B2

公开(公告)日：2017-01-17

申请号：US13267562

申请日：2011-10-06

申请人： Kimihiko Tanaya ,  Futoshi Aida ,  Hiroshi Okuda ,  Takayoshi Nagai

发明人： Kimihiko Tanaya ,  Futoshi Aida ,  Hiroshi Okuda ,  Takayoshi Nagai

IPC分类号： H05B37/02 ,  F02P3/09 ,  H01T15/00 ,  F02P3/08 ,  F02P15/10 ,  H01T13/50

CPC分类号： F02P3/0892 ,  F02P15/10 ,  H01T13/50 ,  H01T15/00

摘要： An ignition apparatus includes: sparking coil supplying a sparking plug with a high voltage; an energy supply device supplying the sparking coil with energy; a first switch disposed therebetween; and a control device controlling the first switch's conduction. The energy supply device has a DC power supply, a resonance coil connected to the DC power supply, a sparking capacitor connected to the resonance coil, and a second switch disposed between the sparking capacitor and an earth, and charges the sparking capacitor to have a voltage value larger than that of the DC power supply in absolute value by making the resonance coil and the sparking capacitor generate an LC resonance when the second and first switches are turned ON and OFF, respectively, according to an instruction from the control device whereas supplying the sparking coil with energy when the second and first switches are operated inversely according to another instruction.

摘要翻译： 一种点火装置包括：给具有高电压的火花塞提供火花线圈; 为火花线圈提供能量的能量供给装置; 设置在其间的第一开关; 以及控制第一开关导通的控制装置。 能量供给装置具有直流电源，连接到直流电源的谐振线圈，连接到谐振线圈的火花电容器和设置在火花电容器和地之间的第二开关，并且将火花电容器充电以具有 根据来自控制装置的指示，使第二开关和第一开关分别接通和断开时，通过使谐振线圈和火花电容器产生LC谐振，使绝对值的DC电源的电压值大于绝对值的电压值， 当第二和第一开关根据另一指令反向操作时，具有能量的火花线圈。

公开(公告)号：US20160356259A1

公开(公告)日：2016-12-08

申请号：US15032829

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： F02P9/00 ,  F02P5/15 ,  F02P3/04 ,  F02P15/10

CPC分类号： F02P9/007 ,  F02P3/0407 ,  F02P3/0442 ,  F02P5/1502 ,  F02P5/1514 ,  F02P5/1516 ,  F02P15/10 ,  F02P2017/121 ,  Y02T10/46

摘要： A method for operating an ignition system for an internal combustion engine, including a first voltage generator and a bypass, is described. The bypass may include, for example, a boost converter for maintaining a spark generated with the aid of the first voltage generator. A speed of an internal combustion engine used with the ignition system is ascertained and the operating mode of the bypass is modified in response to the speed change.

摘要翻译： 描述了一种用于操作包括第一电压发生器和旁路的内燃机的点火系统的方法。 旁路可以包括例如用于维持借助于第一电压发生器产生的火花的升压转换器。 确定与点火系统一起使用的内燃机的速度，并且响应于速度变化来修改旁路的操作模式。