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    IGNITION DEVICE
    122.
    发明申请
    IGNITION DEVICE 有权

    公开(公告)号：US20170276114A1

    公开(公告)日：2017-09-28

    申请号：US15468424

    申请日：2017-03-24

    Applicant: DENSO CORPORATION

    Inventor： Shota KINOSHITA ,  Akimitsu SUGIURA ,  Kaori DOI ,  Fumiaki AOKI

    IPC: F02P13/00 ,  H05H1/46

    CPC classification number: F02P13/00 ,  F02P3/0456 ,  F02P3/05 ,  F02P3/053 ,  F02P9/002 ,  F02P15/005 ,  F02P15/10 ,  F02P17/12 ,  H05H1/46 ,  H05H1/52

    Abstract: An ignition device includes a spark plug, a measurement value detector, an electrical breakdown determiner, an AC voltage applying section, and a first changing section. The measurement value detector includes primary and secondary coils, and detects at least one measurement value among an ignition coil, a primary current, a primary voltage, a secondary current, and a secondary voltage. The electrical breakdown determiner determines whether a discharge has become an electrical breakdown state based on the measurement value. The AC voltage applying section applies an AC voltage of a first predetermined frequency that causes voltage resonance to the primary coil. The first changing section changes the frequency of the AC voltage to a second predetermined frequency that can maintain the electrical breakdown state and is lower in frequency than the first predetermined frequency when it is determined that the discharge has become the electrical breakdown state.

    CONTROL APPARATUS AND CONTROL METHOD
    124.
    发明申请
    CONTROL APPARATUS AND CONTROL METHOD 有权

    公开(公告)号：US20170114766A1

    公开(公告)日：2017-04-27

    申请号：US15301577

    申请日：2015-04-03

    Applicant: DENSO CORPORATION

    Inventor： Hidekazu FUJIMOTO ,  Satoru NAKAYAMA

    IPC: F02P3/05 ,  H01F38/12 ,  F02P5/145

    CPC classification number: F02P3/05 ,  F02P3/00 ,  F02P3/0442 ,  F02P3/0892 ,  F02P5/145 ,  F02P5/1502 ,  F02P9/007 ,  F02P15/10 ,  H01F38/12

    Abstract: A discharge control unit causes a high voltage to be generated in a secondary coil by controlling an igniter unit so as to block a flow of current from a primary coil towards a ground side, and controls a spark plug so that electric discharge is formed between electrodes of the spark plug. An energy input control unit controls an energy input unit to input electrical energy to an ignition coil after start of control of the spark plug by the discharge control unit. A normal ignition control unit controls ignition of an air-fuel mixture in a combustion chamber only through control of the spark plug by the discharge control unit. A specific ignition control unit controls the ignition of the air-fuel mixture in the combustion chamber through control of the spark plug by the discharge control unit and through control of the energy input unit by the energy input control unit. A control unit performs ignition control by the specific ignition control unit until a first predetermined period elapses after a start-up condition of an engine is established, and switches to ignition control by the normal ignition control unit after the elapse of the first predetermined period.

    Method for actuating a spark gap
    126.
    发明授权
    Method for actuating a spark gap 有权
    致动火花间隙的方法

    公开(公告)号：US09531165B2

    公开(公告)日：2016-12-27

    申请号：US13796627

    申请日：2013-03-12

    Applicant: BorgWarner BERU Systems GmbH

    Inventor： Ganghua Ruan ,  Dejan Kienzle

    IPC: F02P3/02 ,  F02P3/04 ,  H01T13/44 ,  F02P15/10 ,  H01T15/00 ,  F02P3/05 ,  F02P17/12 ,  F02P3/055

    CPC classification number: F02P3/045 ,  F02B75/18 ,  F02B2075/1808 ,  F02P3/04 ,  F02P3/0407 ,  F02P3/0414 ,  F02P3/0435 ,  F02P3/0442 ,  F02P3/05 ,  F02P3/053 ,  F02P3/055 ,  F02P15/10 ,  F02P17/12 ,  H01T13/44 ,  H01T15/00

    Abstract: A method for actuating a spark plug, in which the spark plug is assigned a first ignition coil and second ignition coil. Triggered by a start signal, the primary winding of the first ignition coil is charged, and the primary winding of the second ignition coil is charged with a delay D, for which 0≦D, by supplying a direct current, wherein, while each primary winding, is charged, the respective secondary winding is blocked; the primary current supplied to the primary windings is measured; after a period T, the primary winding of the first ignition coil is discharged, and with the delay D the primary winding of the second ignition coil is discharged; the secondary current flowing through the spark plug is measured; thereafter the primary windings of the first and second ignition coil start to be charged alternately when the secondary current falls below a threshold; the primary windings are discharged alternately when the primary current reaches an upper threshold; the above steps are repeated until the duration of discharge between two electrodes of the spark plug 1 reaches a predefined value Z.

    Abstract translation: 一种用于致动火花塞的方法，其中火花塞被分配有第一点火线圈和第二点火线圈。 由起动信号触发，第一点火线圈的初级绕组被充电，并且通过提供直流电流对第二点火线圈的初级绕组充电具有0≤D的延迟D，其中，在每个初级绕组 绕组，充电，各个次级绕组被阻塞; 测量提供给初级绕组的初级电流; 在一段时间T之后，第一点火线圈的初级绕组被放电，并且随着延迟D，第二点火线圈的初级绕组被放电; 测量流过火花塞的二次电流; 此后，当二次电流低于阈值时，第一和第二点火线圈的初级绕组交替地开始充电; 当初级电流达到上限阈值时，初级绕组交替放电; 重复上述步骤直到火花塞1的两个电极之间的放电持续时间达到预定值Z。

    Single chip igniter and internal combustion engine ignition device
    128.
    发明授权
    Single chip igniter and internal combustion engine ignition device 有权
    单芯片点火器和内燃机点火装置

    公开(公告)号：US09447767B2

    公开(公告)日：2016-09-20

    申请号：US13933864

    申请日：2013-07-02

    Applicant: FUJI ELECTRIC CO., LTD.

    Inventor： Kenichi Ishii

    IPC: F02P11/00 ,  F02P3/05 ,  F02P3/055 ,  H01L27/06

    CPC classification number: F02P11/00 ,  F02P3/05 ,  F02P3/055 ,  H01L27/0629 ,  H01L27/0635 ,  H01L2224/48247 ,  H01L2924/181 ,  H01L2924/00012

    Abstract: Aspects of the invention are directed to a single chip igniter such that it is possible to realize a reduction in operating voltage, an increase in noise tolerance, a reduction in size, and a reduction in cost. By reducing the gate threshold voltage of a MOS transistor, and reducing the operating voltages of a current limiter circuit, an overheat detector circuit, a timer circuit, an overvoltage protection circuit, an input hysteresis circuit, and the like, it is possible to reduce the operating voltage of a single chip igniter. In some aspects of the invention, the effective gate voltage of the MOS transistor is 1V or more, and the channel length of the MOS transistor is 4 μm or less. Also, in some aspects of the invention, the thickness of a gate oxide film of the MOS transistor is 5 nm or more, 25 nm or less.

    Abstract translation: 本发明的方面涉及一个单芯片点火器，使得可以实现工作电压的降低，噪声容限的增加，尺寸的减小和成本的降低。 通过降低MOS晶体管的栅极阈值电压，并且降低限流器电路，过热检测器电路，定时器电路，过电压保护电路，输入滞后电路等的工作电压，可以减少 单芯片点火器的工作电压。 在本发明的一些方面，MOS晶体管的有效栅极电压为1V以上，MOS晶体管的沟道长度为4μm以下。 此外，在本发明的一些方面，MOS晶体管的栅极氧化膜的厚度为5nm以上25nm以下。

    INTERNAL COMBUSTION ENGINE SYSTEM
    129.
    发明申请
    INTERNAL COMBUSTION ENGINE SYSTEM 有权
    内燃机系统

    公开(公告)号：US20150377166A1

    公开(公告)日：2015-12-31

    申请号：US14750317

    申请日：2015-06-25

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： Hiromichi YASUDA

    IPC: F02D41/22 ,  G01M15/08 ,  F02P5/04 ,  F02D41/00 ,  F02B77/08 ,  F02D41/30

    CPC classification number: F02D41/22 ,  F02B77/085 ,  F02B77/088 ,  F02D35/023 ,  F02D35/028 ,  F02D41/0002 ,  F02D41/009 ,  F02D41/3005 ,  F02D2041/228 ,  F02D2200/101 ,  F02P3/05 ,  F02P5/045 ,  F02P5/151 ,  F02P5/153 ,  G01M15/08 ,  Y02T10/46

    Abstract: An internal combustion engine system includes: an in-cylinder pressure sensor; a crank angle sensor; and a seal portion that seals a space between an outer face of a housing and a wall surface of a cylinder head. A slope that is a ratio of the amount of decrease in a heat release amount relative to the amount of increase in a crank angle is calculated in a period during an expansion stroke from a combustion end point until an opening timing of an exhaust valve. The existence or nonexistence of an abnormality in the sealing function of the seal portion is determined based on whether or not a ratio of the amount of decrease in the slope to the amount of increase in an engine speed is greater than a threshold value.

    Abstract translation: 内燃机系统包括：缸内压力传感器; 曲柄角传感器; 以及密封部，密封壳体的外表面和气缸盖的壁面之间的空间。 在从燃烧终点到排气门的打开正时的膨胀冲程期间计算作为放热量的减少量相对于曲柄角度的增加量的比的斜率。 密封部的密封功能的异常的存在或不存在基于斜率的减少量与发动机转速的增加量的比是否大于阈值来确定。

    Soft turn-on in an ignition system of a combustion engine
    130.
    发明授权
    Soft turn-on in an ignition system of a combustion engine 有权
    在内燃机的点火系统中软启动

    公开(公告)号：US09013224B2

    公开(公告)日：2015-04-21

    申请号：US13609008

    申请日：2012-09-10

    Applicant: Calogero Andrea Trecarichi ,  Giovanni Luca Torrisi ,  Donato Tagliavia

    Inventor： Calogero Andrea Trecarichi ,  Giovanni Luca Torrisi ,  Donato Tagliavia

    IPC: H03K17/04 ,  F02P3/04 ,  F02P3/05 ,  F02P11/02 ,  H03K17/16

    CPC classification number: F02P3/0435 ,  F02P3/05 ,  F02P11/02 ,  H03K17/166 ,  H03K17/168

    Abstract: A switching system for a combustion engine ignition system comprises a switching device switchable between an accumulation condition and a transfer condition to activate an ignition element. The switching system comprises control logic that provides a control signal for controlling the switching device, measures a progress indicator indicative of progress in switching the switching device from the transfer condition to the accumulation condition, and causes the control signal to vary with a first variation rate during a first stage until the progress indicator reaches a first progress condition. The control logic causes the control signal to vary with a second variation rate, lower than the first variation rate, during a second stage until the progress indicator reaches a second progress condition, and causes the control signal to vary with a third variation rate, higher than the second variation rate, during a third stage of the preliminary switching.

    Abstract translation: 一种用于燃烧发动机点火系统的切换系统包括可在累积状态和转移状态之间切换以切换点火元件的切换装置。 开关系统包括提供用于控制开关装置的控制信号的控制逻辑，测量指示将开关装置从转移状态切换到累积状态的进展的进度指示器，并使控制信号以第一变化率 在第一阶段直到进度指示器达到第一进展状态。 所述控制逻辑使得所述控制信号在第二阶段期间以比所述第一变化率低的第二变化速率变化，直到所述进展指示器达到第二进展状态，并且使所述控制信号以第三变化率变化，更高 在第二变化率的情况下，在初步切换的第三阶段。

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