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公开(公告)号：US20170022961A1
公开(公告)日：2017-01-26
申请号：US15302552
申请日：2015-04-09
申请人： DENSO CORPORATION
CPC分类号： F02P3/08 , F02P3/0442 , F02P3/0892 , F02P5/15 , F02P9/00 , F02P9/007 , F02P15/10
摘要： According to an ignition device, a first switching unit applies a voltage between electrodes of by spark plug by turning on/off energization from an on-vehicle battery to a primary coil. Further, a second switching unit applies a voltage having the same direction as a spark discharge generated by turning on/off the first switching unit between the electrodes of the spark plug by supplying electrical energy accumulated in a booster circuit into a primary coil. Accordingly, it is possible to greatly reduce a complexity of the on/off switching of the first and second switching units compared to a conventional technology.
摘要翻译： 根据点火装置，第一开关单元通过从车载电池接通/断开通电至初级线圈，通过火花塞的电极之间施加电压。 此外，第二开关单元通过将升压电路中蓄积的电能提供给初级线圈，施加与火花塞的电极之间接通/断开第一开关单元产生的火花放电相同的方向的电压。 因此，与传统技术相比，可以大大降低第一和第二开关单元的接通/断开切换的复杂性。
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公开(公告)号：US20160102648A1
公开(公告)日：2016-04-14
申请号：US14893740
申请日：2014-05-20
申请人： DENSO CORPORATION
CPC分类号： F02P9/002 , F02P3/005 , F02P3/0435 , F02P3/0892 , F02P5/145 , F02P5/1502 , F02P7/03 , F02P9/007 , F02P15/10 , Y02T10/46
摘要： An ignition control apparatus for engines is provided. The ignition control apparatus is designed to control a switch to release energy stored in a capacitor during spark discharge, thereby supplying a primary current to an other end side opposite a one end of a primary winding of an ignition coil connected to a dc power supply. This provides the ignition control apparatus which is capable of minimizing an increase in size or manufacturing cost and stabilizing the state of combustion of an air-fuel mixture.
摘要翻译： 提供一种用于发动机的点火控制装置。 点火控制装置被设计成控制开关以在火花放电期间释放存储在电容器中的能量，从而向连接到直流电源的点火线圈的初级绕组的一端相对的另一端侧提供初级电流。 这提供了能够最小化尺寸增加或制造成本以及稳定空气 - 燃料混合物的燃烧状态的点火控制装置。
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公开(公告)号：US20160061177A1
公开(公告)日：2016-03-03
申请号：US14783901
申请日：2014-04-11
申请人： DENSO CORPORATION
发明人： Masahiro ISHITANI , Akimitsu SUGIURA , Makoto TORIYAMA , Satoru NAKAYAMA , Yuuki KONDOU , Hisaharu MORITA , Naoto HAYASHI , Yuuto TAMEI , Takashi OONO , Shunichi TAKEDA
CPC分类号： F02P3/0435 , F02P11/06 , F02P15/10
摘要： An ignition control apparatus of the present embodiment controls operation of an ignition plug provided so as to ignite an air-fuel mixed gas. The ignition control apparatus is characterized in that the ignition control apparatus includes: an ignition coil provided with a primary winding which allows a current to pass as a primary current therethrough and a second winding connected to the ignition coil, an increase and a decrease in the primary current generating a secondary current passing through the secondary winding; a DC power supply provided with a non-ground side output terminal, the non-ground side output terminal being connected to one end of the primary winding so that the primary current is made to pass through the primary winding; a first switching element configured of a semiconductor switching element provided with a first control terminal, a fist power side terminal, and a first ground side terminal, the semiconductor switching element controlling on and off states of current supply between the first power side terminal and the first ground side terminal based on a first control signal inputted to the first control terminal, the first power side terminal being connected to the other end side of the primary winding, the first ground side terminal being connected to a ground side; a second switching element configured of a semiconductor switching element provided with a second control terminal, a second power side terminal, and a second ground side terminal, the semiconductor switching element controlling on and off states of current supply between the second power side terminal and the second ground side terminal based on a second control signal inputted to the second control terminal, the second ground side terminal being connected to the other end side of the primary winding; a third switching element configured of a semiconductor switching element provided with a third control terminal, a third power side terminal, and a third ground side terminal, the semiconductor switching element controlling on and off states of current supply between the third power side terminal and the third ground side terminal based on a third control signal inputted to the third control terminal, the third power side terminal being connected to the second power side terminal of the second switching element, the third ground side terminal being connected to the ground side; and an energy accumulation coil configured of an inductor, the inductor being interposed in a power line connecting the non-ground side output terminal of the DC power supply and the third power side terminal of the third switching element, the energy accumulation coil accumulating energy therein in response to turning on of the third switching element.
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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
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.
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公开(公告)号：US20160146176A1
公开(公告)日：2016-05-26
申请号：US14903897
申请日：2014-07-04
申请人： DENSO CORPORATION
CPC分类号： F02P9/002 , F02P3/0838 , F02P3/0846 , F02P3/093 , F02P9/007 , F02P15/10
摘要： An ignition control device includes a control unit to control first to third switching elements so that during ignition discharge, which is started by turning off the first switching element, energy stored on a capacitor is discharged by turning off the third switching element and turning on the second switching element for supplying a primary current to an end of a primary winding opposite to an end thereof connected to a direct-current power supply. During inductive discharge of a spark plug, the control unit non-intermittently turns on the second switching element so that the second switching element is turned on over a successive energy input time period, according to the operating conditions of an internal combustion engine.
摘要翻译： 点火控制装置包括控制单元，用于控制第一至第三开关元件，使得在通过关闭第一开关元件而开始的点火放电期间，通过关闭第三开关元件并接通 第二开关元件，用于将初级电流提供给与连接到直流电源的端部相对的初级绕组的端部。 在火花塞的感应放电期间，控制单元不间断地接通第二开关元件，使得第二开关元件根据内燃机的运行条件在连续的能量输入时间段内接通。
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公开(公告)号：US20160084213A1
公开(公告)日：2016-03-24
申请号：US14783575
申请日：2014-04-11
申请人： DENSO CORPORATION
IPC分类号： F02P3/04
摘要： In an ignition control apparatus, a control unit controls switching elements so as to supply a primary current to the other end side of a primary winding opposite to one end thereof connected to a DC power source by discharging (which is performed by turning on a second switching element stored energy from a capacitor during ignition discharge (which is started by turning off a first switching element. In particular, the control unit controls the second switching element or the third switching element so as to provide variability to the amount of stored energy discharged from the capacitor according to an operating state of an internal combustion engine.
摘要翻译： 在点火控制装置中，控制单元控制开关元件，以便通过放电（通过转动第二次而进行）向与直流电源连接的一端相对的初级绕组的另一端侧提供初级电流 开关元件在点火放电期间从电容器存储能量（其通过关闭第一开关元件而开始），特别地，控制单元控制第二开关元件或第三开关元件，以便提供对所释放的存储能量的变化性 根据内燃机的运行状态从电容器。
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公开(公告)号：US20170030319A1
公开(公告)日：2017-02-02
申请号：US15302543
申请日：2015-04-10
申请人： DENSO CORPORATION
发明人： Makoto TORIYAMA , Satoru NAKAYAMA
CPC分类号： F02P3/04 , F02P3/0876 , F02P3/0892 , F02P9/00 , F02P9/007 , F02P11/00 , F02P15/10
摘要： When an abnormality judgement section judges that there is a failure of an energy inputting circuit, an energy inputting line, through which electrical energy is inputted from the energy inputting circuit to a primary winding, is changed over to a disconnected state by output halt switching means. As a result, since inputting of electrical energy to the primary winding is thereby halted, problems arising due to continuation of inputting electrical energy to the energy inputting circuit can be prevented, even in the event of a failure of the energy inputting circuit, so that reliability can be enhanced.
摘要翻译： 当异常判断部判定能量输入电路发生故障时，通过能量输入电路向初级绕组输入电能的能量输入线通过输出停止开关装置切换到断开状态 。 结果，由于暂时向初级绕组输入电能，所以即使在能量输入电路发生故障的情况下也能够防止由于向能量输入电路输入电能而引起的问题，所以能够 可靠性可以提高。
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公开(公告)号：US20160047352A1
公开(公告)日：2016-02-18
申请号：US14783898
申请日：2014-04-11
申请人： DENSO CORPORATION
发明人： Satoru NAKAYAMA , Makoto TORIYAMA , Akimitsu SUGIURA , Masahiro ISHITANI , Yuuki KONDOU , Kanechiyo TERADA
CPC分类号： F02P9/002 , F02P3/005 , F02P3/0407 , F02P3/0453 , F02P3/05 , F02P3/0876 , F02P3/09 , F02P5/1502 , F02P15/10 , Y02T10/46
摘要： It is possible to adjust electromagnetic energy introduced from a low-voltage side of a primary winding 20 of an ignition coil 2 after start discharging to a spark plug 1 from the ignition coil 2 in the correct proportion by threshold-determining either one or both of a primary voltage V1 applied to a primary side of the ignition coil 2 and a secondary current I2 flowing in a secondary side of the ignition coil 2, and by opening and closing a discharging switch 32 disposed between an auxiliary power supply 3 including an energy storage coil 330 and a low-voltage side terminal 201 of the ignition coil 2.
摘要翻译： 可以通过阈值确定任一个或两个来调节从点火线圈2开始放电到火花塞1之后从点火线圈2的初级绕组20的低压侧引入的电磁能量 施加到点火线圈2的初级侧的初级电压V1和在点火线圈2的二次侧流动的次级电流I2，并且通过打开和关闭设置在包括能量存储器的辅助电源3之间的放电开关32 线圈330和点火线圈2的低压侧端子201。
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公开(公告)号：US20170342955A1
公开(公告)日：2017-11-30
申请号：US15680265
申请日：2017-08-18
申请人： DENSO CORPORATION
发明人： Masahiro ISHITANI , Akimitsu SUGIURA , Makoto TORIYAMA , Satoru NAKAYAMA , Yuuki KONDOU , Hisaharu MORITA , Naoto HAYASHI , Yuuto TAMEI , Takashi OONO , Shunichi TAKEDA
CPC分类号： F02P3/0435 , F02P11/06 , F02P15/10
摘要： An ignition control apparatus of the present embodiment controls operation of an ignition plug provided so as to ignite an air-fuel mixed gas. The ignition control apparatus is characterized in that the ignition control apparatus includes: an ignition coil provided with a primary winding which allows a current to pass as a primary current therethrough and a second winding connected to the ignition coil, an increase and a decrease in the primary current generating a secondary current passing through the secondary winding; a DC power supply provided with a non-ground side output terminal, the non-ground side output terminal being connected to one end of the primary winding so that the primary current is made to pass through the primary winding; a first switching element configured of a semiconductor switching element provided with a first control terminal, a first power side terminal, and a first ground side terminal, the semiconductor switching element controlling on and off states of current supply between the first power side terminal and the first ground side terminal based on a first control signal inputted to the first control terminal, the first power side terminal being connected to the other end side of the primary winding, the first ground side terminal being connected to a ground side; a second switching element configured of a semiconductor switching element provided with a second control terminal, a second power side terminal, and a second ground side terminal, the semiconductor switching element controlling on and off states of current supply between the second power side terminal and the second ground side terminal based on a second control signal inputted to the second control terminal, the second ground side terminal being connected to the other end side of the primary winding; a third switching element configured of a semiconductor switching element provided with a third control terminal, a third power side terminal, and a third ground side terminal, the semiconductor switching element controlling on and off states of current supply between the third power side terminal and the third ground side terminal based on a third control signal inputted to the third control terminal, the third power side terminal being connected to the second power side terminal of the second switching element, the third ground side terminal being connected to the ground side; and an energy accumulation coil configured of an inductor, the inductor being interposed in a power line connecting the non-ground side output terminal of the DC power supply and the third power side terminal of the third switching element, the energy accumulation coil accumulating energy therein in response to turning on of the third switching element.
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公开(公告)号：US20170159634A1
公开(公告)日：2017-06-08
申请号：US15302072
申请日：2015-04-09
申请人： DENSO CORPORATION
发明人： Hidekazu FUJIMOTO , Makoto TORIYAMA , Satoru NAKAYAMA , Yasuomi IMANAKA , Kanechiyo TERADA , Shunichi TAKEDA , Kaori DOI , Junichi WADA , Hisaharu MORITA , Naohisa NAKAMURA
CPC分类号： F02P11/06 , F02D9/08 , F02D37/02 , F02D41/0002 , F02D41/20 , F02D41/22 , F02D41/221 , F02D41/3005 , F02D2041/2058 , F02D2041/227 , F02P3/053 , F02P5/1502 , F02P9/002 , F02P9/007 , F02P15/10 , F02P17/00 , Y02T10/42
摘要： In a control apparatus, a discharge control unit controls an igniter unit so that a flow of current from a primary coil towards a ground side is blocked, thereby generating a high voltage in a secondary coil, and controls a spark plug so that the spark plug generates electric discharge. An energy input control unit controls an energy input unit so as to input electrical energy to an ignition coil after the start of control of the spark plug by the discharge control unit. A control unit and an abnormality detecting unit detects an abnormality in the igniter unit or the ignition coil based on a first threshold and a first current value that is a value corresponding to a current detected by a current detection circuit at this time, when a first predetermined period elapses after the start of control of the spark plug by the discharge control unit.
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