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公开(公告)号：US4608958A
公开(公告)日：1986-09-02
申请号：US533812
申请日：1983-09-19
Applicant: Yasuyuki Sakakibara , Norihito Tokura
Inventor： Yasuyuki Sakakibara , Norihito Tokura
CPC classification number: F02P7/035 , F02D41/2096 , F02D41/40 , F02P15/10 , F02P3/0892 , F02D2041/2003 , Y02T10/44
Abstract: A device for driving a load reactance element, such as a piezoelectric actuator for a fuel injection system, including a series reactance element connected in series with the load reactance element, and a resonance circuit formed by the load reactance and the series reactance. First and second switching elements are connected between the resonance circuit and the power source or ground potential. Each of the first and second switching elements is rendered conductive only during a half cycle of resonance. The directions of the load current flowing through the load reactance element are switchable by making alternately the first and second switching elements conductive.
Abstract translation: 用于驱动负载电抗元件的装置，例如用于燃料喷射系统的压电致动器，包括与负载电抗元件串联连接的串联电抗元件，以及由负载电抗和串联电抗形成的谐振电路。 第一和第二开关元件连接在谐振电路和电源或地电位之间。 第一和第二开关元件中的每一个仅在谐振的半周期期间才导通。 流过负载电抗元件的负载电流的方向可以通过交替地使第一和第二开关元件导通来切换。
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公开(公告)号：US09957944B2
公开(公告)日：2018-05-01
申请号：US15302550
申请日：2015-04-07
Applicant: DENSO CORPORATION
Inventor： Satoru Nakayama
CPC classification number: F02P3/05 , F02P3/0442 , F02P3/053 , F02P3/0892 , F02P9/007 , F02P15/10 , F02P17/12
Abstract: An ignition apparatus includes a blow-off determining unit 5b. The blow-off determining unit 5b determines, when the value ΔI2 of the time derivative of a secondary electric current exceeds a predetermined threshold value Z 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 3. 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 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 secondary electric current value I2x immediately before the occurrence of blow-off. Consequently, in the next cycle, it is possible to reliably prevent blow-off, thereby reliably preventing misfire.
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公开(公告)号：US09897062B2
公开(公告)日：2018-02-20
申请号：US15039857
申请日：2014-11-28
Applicant: DENSO CORPORATION
Inventor： Satoru Nakayama , Makoto Toriyama , Akimitsu Sugiura , Masahiro Ishitani , Atsuya Mizutani , Kouji Andoh , Naoto Hayashi , Kaori Doi
CPC classification number: F02P15/10 , F02P3/0407 , F02P3/0442 , F02P3/05 , F02P3/051 , F02P3/0892 , F02P5/145 , F02P5/15 , F02P9/002 , F02P9/007 , F02P17/12 , Y02T10/46
Abstract: 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.
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公开(公告)号：US20170130689A1
公开(公告)日：2017-05-11
申请号：US15141968
申请日：2016-04-29
Applicant: Mitsubishi Electric Corporation
Inventor： Kimihiko TANAYA
CPC classification number: F02P11/00 , F02P3/02 , F02P3/04 , F02P3/0892 , F02P3/09 , F02P9/005 , F02P9/007 , F02P11/025
Abstract: Provided are an ignition apparatus and an ignition control method capable of suppressing occurrence of a defect caused by a charge unit, which may occur when ignition of a combustible mixture in a combustion chamber of an internal combustion engine needs to be stopped. When a stop condition for stopping ignition of a combustible mixture in a combustion chamber (2) of an internal combustion engine (1) is satisfied, supply of plasma generation energy to an ignition plug (3) is stopped, and DC energy charged in a charge unit (42) is discharged.
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公开(公告)号：US20170037826A1
公开(公告)日：2017-02-09
申请号：US15302550
申请日：2015-04-07
Applicant: DENSO CORPORATION
Inventor： Satoru Nakayama
CPC classification number: F02P3/05 , F02P3/0442 , F02P3/053 , F02P3/0892 , F02P9/007 , F02P15/10 , F02P17/12
Abstract: An ignition apparatus includes a blow-off determining unit 5b. The blow-off determining unit 5b determines, when the value ΔI2 of the time derivative of a secondary electric current exceeds a predetermined threshold value Z 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 3. 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 in performing the continuing spark discharge is set-to an electric current value that is obtained by adding a predetermined electric current value a to the secondary electric current value I2x immediately before the occurrence of blow-off. Consequently, in the next cycle, it is possible to reliably prevent blow-off, thereby reliably preventing misfire.
Abstract translation: 点火装置包括吹出判定单元5b。 吹出判定部5b，在判断期间，当二次电流的时间导数的值ΔI2超过规定的阈值Z时，判断为发生了溢流; 确定期间是从主点火回路3开始火花放电开始的预定时间段ΔT。此外，当确定在主点火（全晶体管点火）期间已经发生溢流时，控制为 在下一个循环中，在主点火之后继续发生火花放电。 此外，进行持续火花放电的次级电流指令值被设定为通过在紧接出现吹出之前将预定电流值a与次级电流值I2x相加而获得的电流值。 因此，在下一循环中，可以可靠地防止吹出，从而可靠地防止失火。
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Patent Agency Ranking
公开(公告)号：US20170030320A1
公开(公告)日：2017-02-02
申请号：US15302558
申请日：2015-04-08
Applicant: DENSO CORPORATION
Inventor： Kanechiyo TERADA
CPC classification number: F02P3/08 , F02P3/0892 , F02P9/007 , F02P15/10 , H01F38/12
Abstract: An ignition apparatus for an internal-combustion engine includes a main ignition CDI circuit that has a main ignition boosting circuit boosting battery voltage and a main ignition capacitor storing electric charge boosted by the main ignition boosting circuit, and that releases the electric charge stored in the main ignition capacitor to a primary coil of an ignition coil to make an ignition plug generate spark discharge, and an energy input circuit that has an energy input boosting circuit boosting battery voltage and an energy input capacitor storing electric charge boosted by the energy input boosting circuit, and that releases the electric charge stored in the energy input capacitor to the primary coil, during a spark discharge started by operation of the main ignition CDI circuit, to make a secondary current flow in the same direction and to a secondary coil of the ignition coil, thereby making spark discharge continue which is started by the operation of the main ignition CDI circuit.
Abstract translation: 一种用于内燃机的点火装置包括具有提升电池电压的主点火提升电路的主点火CDI电路和存储由主点火升压电路升压的电荷的主点火电容器，并且释放存储在 主点火电容器到点火线圈的初级线圈以使火花塞产生火花放电，以及能量输入电路，其具有提升电池电压的能量输入升压电路和储存由能量输入升压电路提升的电荷的能量输入电容器 并且在通过主点火CDI电路的操作开始的火花放电期间将存储在能量输入电容器中的电荷释放到初级线圈，以使二次电流在相同方向上流动并且产生次级线圈的点火 从而使得通过主要点火CDI电池的操作开始火花放电继续 请教
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公开(公告)号：US09546637B2
公开(公告)日：2017-01-17
申请号：US13267562
申请日：2011-10-06
Applicant: Kimihiko Tanaya , Futoshi Aida , Hiroshi Okuda , Takayoshi Nagai
Inventor： Kimihiko Tanaya , Futoshi Aida , Hiroshi Okuda , Takayoshi Nagai
CPC classification number: F02P3/0892 , F02P15/10 , H01T13/50 , H01T15/00
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US09458816B2
公开(公告)日：2016-10-04
申请号：US13768711
申请日：2013-02-15
Applicant: Mitsubishi Electric Corporation
Inventor： Futoshi Aida
CPC classification number: F02P15/00 , F02P3/0892 , F02P15/10
Abstract: A resonance inductor is connected with a charging path through which an ignition condenser is charged; a first switching device controls charging of the ignition condenser; discharging of the ignition condenser is controlled by a second switching device whose collector terminal is connected with the other end of the primary coil of an ignition coil unit and whose emitter terminal is connected with the negative-polarity terminal of the ignition condenser; a clamp diode is connected between the one end of the primary coil and the collector terminal of the second switching device.
Abstract translation: 谐振电感器与充电路径连接，点火式冷凝器通过该充电路径充电; 第一开关装置控制点火式冷凝器的充电; 点火电容器的放电由第二开关装置控制，第二开关装置的集电端子与点火线圈单元的初级线圈的另一端连接，其发射极端子与点火式冷凝器的负极端子连接; 钳位二极管连接在初级线圈的一端和第二开关器件的集电极端子之间。
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公开(公告)号：US20140090628A1
公开(公告)日：2014-04-03
申请号：US13768711
申请日：2013-02-15
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Futoshi AIDA
IPC: F02P15/00
CPC classification number: F02P15/00 , F02P3/0892 , F02P15/10
Abstract: A resonance inductor is connected with a charging path through which an ignition condenser is charged; a first switching device controls charging of the ignition condenser; discharging of the ignition condenser is controlled by a second switching device whose collector terminal is connected with the other end of the primary coil of an ignition coil unit and whose emitter terminal is connected with the negative-polarity terminal of the ignition condenser; a clamp diode is connected between the one end of the primary coil and the collector terminal of the second switching device.
Abstract translation: 谐振电感器与充电路径连接，点火式冷凝器通过该充电路径充电; 第一开关装置控制点火式冷凝器的充电; 点火电容器的放电由第二开关装置控制，第二开关装置的集电端子与点火线圈单元的初级线圈的另一端连接，其发射极端子与点火式冷凝器的负极端子连接; 钳位二极管连接在初级线圈的一端和第二开关器件的集电极端子之间。
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公开(公告)号：US20120293088A1
公开(公告)日：2012-11-22
申请号：US13267562
申请日：2011-10-06
Applicant: Kimihiko TANAYA , Futoshi AIDA , Hiroshi OKUDA , Takayoshi NAGAI
Inventor： Kimihiko TANAYA , Futoshi AIDA , Hiroshi OKUDA , Takayoshi NAGAI
IPC: H01T15/00
CPC classification number: F02P3/0892 , F02P15/10 , H01T13/50 , H01T15/00
Abstract: 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.
Abstract translation: 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。
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