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    Combustion State Determination Method Of Internal Combustion Engine
    1.
    发明申请
    Combustion State Determination Method Of Internal Combustion Engine 有权
    内燃机燃烧状态测定方法

    公开(公告)号：US20080028842A1

    公开(公告)日：2008-02-07

    申请号：US11659663

    申请日：2005-08-03

    申请人： Morito Asano ,  Mitsuhiro Izumi ,  Tsutomu Kusuhara

    发明人： Morito Asano ,  Mitsuhiro Izumi ,  Tsutomu Kusuhara

    IPC分类号： G01R19/15

    CPC分类号： F02D35/021 ,  F02D41/402 ,  Y02T10/44

    摘要： The present invention is a combustion state determination method of an internal combustion engine for detecting an ion current which is generated in a combustion chamber at combustion of the internal combustion engine in a detection period to determine a combustion state, comprising steps of detecting a primary combustion period on the basis of a first ion current which forms the detected ion current and occurs immediately after ignition, detecting a secondary combustion period on the basis of the ion current which occurs after disappearance of the first ion current when at least the detected primary combustion period is normal, determining the combustion state on the basis of the detected primary combustion period when the secondary combustion period is smaller than a predetermined value, and determining the combustion state on the basis of a whole combustion period from start of the detection period of the ion current to end of the last secondary combustion period in the detection period when the secondary combustion period is larger than the predetermined value.

    摘要翻译： 本发明是一种内燃机的燃烧状态判定方法，该内燃机用于检测在检测期间内燃机的燃烧时在燃烧室中产生的离子电流，以确定燃烧状态，包括以下步骤：检测一次燃烧 基于形成检测到的离子电流并且在点火之后立即发生的第一离子电流的时间段，基于在至少检测到的一次燃烧时间时基于第一离子电流消失之后发生的离子电流检测二次燃烧时间 是正常的，当二次燃烧时间小于预定值时，基于检测到的一次燃烧时间确定燃烧状态，并且基于从离子的检测周期开始的整个燃烧周期来确定燃烧状态 在检测pe中的最后二次燃烧时段的当前结束 当二次燃烧期间大于预定值时。

    METHOD FOR DETERMINING AIR FUEL RATIO OF INTERNAL COMBUSTION ENGINE ON THE BASIS OF ION CURRENT
    2.
    发明申请
    METHOD FOR DETERMINING AIR FUEL RATIO OF INTERNAL COMBUSTION ENGINE ON THE BASIS OF ION CURRENT 审中-公开
    基于离子电流测定内燃机空燃比的方法

    公开(公告)号：US20100154509A1

    公开(公告)日：2010-06-24

    申请号：US12160474

    申请日：2006-12-27

    申请人： Morito Asano ,  Shinobu Sugisaki ,  Mitsuhiro Izumi ,  Kouichi Kitaura ,  Kouichi Satoya ,  Mamoru Yoshioka

    发明人： Morito Asano ,  Shinobu Sugisaki ,  Mitsuhiro Izumi ,  Kouichi Kitaura ,  Kouichi Satoya ,  Mamoru Yoshioka

    IPC分类号： G01M15/04

    CPC分类号： F02D35/021 ,  F02D41/06 ,  F02D41/1458 ,  F02D41/1495

    摘要： In a method for determining an air fuel ratio of an internal combustion engine on the basis of an ion current, for detecting an ion current generated per ignition within a combustion chamber of the internal combustion engine, the method measures a generation period in which the ion current is greater than a determination value set as long as the ion current is generated, computes a divisor for computing a rate of fluctuation of the generation period of the ion current on the basis of a plurality of measured generation periods, computes the rate of fluctuation of the generation period of the ion current by weighing in a direction of increasing the computed divisor, and determines that an air fuel ratio is excessively high in the case that the calculated rate of fluctuation is equal to or more than a predetermined value.

    摘要翻译： 在用于基于离子电流确定内燃机的空燃比的方法中，用于检测在内燃机的燃烧室内每次点火产生的离子电流的方法，该方法测量产生时间，其中离子 只要产生离子电流，电流大于确定值，就计算用于计算离子电流的产生周期的波动率的除数，根据多个测量的生成周期计算出波动率 通过在增加计算除数的方向上进行加权来计算离子电流的产生周期，并且在计算出的波动率等于或大于预定值的情况下确定空燃比过高。

    Combustion state determination method of internal combustion engine
    3.
    发明授权
    Combustion state determination method of internal combustion engine 有权
    内燃机燃烧状态测定方法

    公开(公告)号：US07448253B2

    公开(公告)日：2008-11-11

    申请号：US11659663

    申请日：2005-08-03

    申请人： Morita Asano ,  Mitsuhiro Izumi ,  Tsutomu Kusuhara

    发明人： Morita Asano ,  Mitsuhiro Izumi ,  Tsutomu Kusuhara

    IPC分类号： G01M15/00

    CPC分类号： F02D35/021 ,  F02D41/402 ,  Y02T10/44

    摘要： The present invention is a combustion state determination method of an internal combustion engine for detecting an ion current which is generated in a combustion chamber at combustion of the internal combustion engine in a detection period to determine a combustion state, comprising steps of detecting a primary combustion period on the basis of a first ion current which forms the detected ion current and occurs immediately after ignition, detecting a secondary combustion period on the basis of the ion current which occurs after disappearance of the first ion current when at least the detected primary combustion period is normal, determining the combustion state on the basis of the detected primary combustion period when the secondary combustion period is smaller than a predetermined value, and determining the combustion state on the basis of a whole combustion period from start of the detection period of the ion current to end of the last secondary combustion period in the detection period when the secondary combustion period is larger than the predetermined value.

    摘要翻译： 本发明是一种内燃机的燃烧状态判定方法，该内燃机用于检测在检测期间内燃机的燃烧时在燃烧室中产生的离子电流，以确定燃烧状态，包括以下步骤：检测一次燃烧 基于形成检测到的离子电流并在点火之后立即发生的第一离子电流的时间段，基于在至少检测到的一次燃烧期间基于第一离子电流消失之后发生的离子电流检测二次燃烧时间 是正常的，当二次燃烧时间小于预定值时，基于检测到的一次燃烧时间确定燃烧状态，并且基于从离子的检测周期开始的整个燃烧周期来确定燃烧状态 在检测pe中的最后二次燃烧时段的当前结束 当二次燃烧期间大于预定值时。

    Ion Current Detecting Apparatus for Internal Combustion Engine
    4.
    发明申请
    Ion Current Detecting Apparatus for Internal Combustion Engine 有权
    内燃机离子电流检测装置

    公开(公告)号：US20080030197A1

    公开(公告)日：2008-02-07

    申请号：US11632928

    申请日：2005-08-09

    申请人： Yoshiyuki Fukumura ,  Mitsuhiro Izumi ,  Shinobu Sugisaki ,  Tsutomu Kusuhara

    发明人： Yoshiyuki Fukumura ,  Mitsuhiro Izumi ,  Shinobu Sugisaki ,  Tsutomu Kusuhara

    IPC分类号： F02P17/12

    CPC分类号： F02D35/021 ,  F02P17/12 ,  G01L23/221

    摘要： An ion current detecting apparatus includes a capacitor C that is charged as a spark plug 3 discharges, a Zener diode ZD that limits a maximum voltage of the capacitor C while charging, a detection resistor R2 through which a discharge current of the capacitor C flows, and a comparator circuit 5 that compares a current value of the detection resistor R2 with a predetermined value. A charge quantity Q of the capacitor C at discharge start is set so that, as a consequence of a discharging operation of the capacitor C, discharge duration required until the current value of the detection resistor R2 falls below the predetermined value becomes longer than time duration in which the ion current generated by fuel combustion in the engine combustion chamber lasts. The ion current detecting apparatus according to the present invention quickly and automatically detects degradation in an insulation resistor in the spark plug to ensure a normal operation in engine control.

    摘要翻译： 离子电流检测装置包括：随着火花塞3放电而充电的电容器C，在充电时限制电容器C的最大电压的齐纳二极管ZD，电容器C的放电电流流过的检测电阻器R 2 以及将检测电阻器R 2的电流值与规定值进行比较的比较电路5。 设定放电开始时的电容器C的电荷量Q，使得作为电容器C的放电动作的结果，直到检测电阻器R 2的电流值下降到预定值以下所需的放电持续时间变得比时间长 在发动机燃烧室内由燃料燃烧产生的离子电流持续的持续时间。 根据本发明的离子电流检测装置快速且自动地检测火花塞中的绝缘电阻器的劣化，以确保发动机控制中的正常操作。

    Ion current detecting apparatus for internal combustion engine
    5.
    发明授权
    Ion current detecting apparatus for internal combustion engine 有权
    内燃机用离子电流检测装置

    公开(公告)号：US07746079B2

    公开(公告)日：2010-06-29

    申请号：US11632928

    申请日：2005-08-09

    申请人： Yoshiyuki Fukumura ,  Mitsuhiro Izumi ,  Shinobu Sugisaki ,  Tsutomu Kusuhara

    发明人： Yoshiyuki Fukumura ,  Mitsuhiro Izumi ,  Shinobu Sugisaki ,  Tsutomu Kusuhara

    IPC分类号： F02P17/00

    CPC分类号： F02D35/021 ,  F02P17/12 ,  G01L23/221

    摘要： An ion current detecting apparatus includes a capacitor C that is charged as a spark plug 3 discharges, a Zener diode ZD that limits a maximum voltage of the capacitor C while charging, a detection resistor R2 through which a discharge current of the capacitor C flows, and a comparator circuit 5 that compares a current value of the detection resistor R2 with a predetermined value. A charge quantity Q of the capacitor C at discharge start is set so that, as a consequence of a discharging operation of the capacitor C, discharge duration required until the current value of the detection resistor R2 falls below the predetermined value becomes longer than time duration in which the ion current generated by fuel combustion in the engine combustion chamber lasts. The ion current detecting apparatus automatically detects degradation in an insulation resistance in the spark plug, ensuring normal operation in engine control.

    摘要翻译： 离子电流检测装置包括：随着火花塞3放电而充电的电容器C，在充电时限制电容器C的最大电压的齐纳二极管ZD，电容器C的放电电流流过的检测电阻R2， 以及将检测电阻器R2的电流值与规定值进行比较的比较电路5。 设定放电开始时的电容器C的充电量Q，使得作为电容器C的放电动作的结果，直到检测电阻器R2的电流值下降到预定值以下所需的放电持续时间长于持续时间 其中由发动机燃烧室中的燃料燃烧产生的离子电流持续。 离子电流检测装置自动检测火花塞的绝缘电阻的劣化，确保发动机控制中的正常工作。

    Smoldering Determination Method of Internal Combustion Engine
    8.
    发明申请
    Smoldering Determination Method of Internal Combustion Engine 有权
    内燃机闷燃测定方法

    公开(公告)号：US20070245995A1

    公开(公告)日：2007-10-25

    申请号：US11659659

    申请日：2005-08-03

    申请人： Morito Asano ,  Mitsuhiro Izumi

    发明人： Morito Asano ,  Mitsuhiro Izumi

    IPC分类号： F02P11/06

    CPC分类号： F02P17/12 ,  F02P2017/121 ,  F02P2017/125

    摘要： According to the present invention, in a spark ignition-type internal combustion engine which has a spark plug and mounted in a vehicle, an ion current generated in a combustion chamber through the spark plug after ignition is detected and smoldering of the spark plug is determined on the basis of the detected ion current. An operation state of the internal combustion engine is detected and smoldering of the spark plug is determined based on that the detected ion current satisfies a predetermined condition when the detected operation state falls within an operation determination range set corresponding to an operation range in which an intake port pressure close to an atmospheric pressure is achieved using predetermined engine speed as an upper limit and a predetermined intake port pressure as a lower limit.

    摘要翻译： 根据本发明，在具有火花塞并安装在车辆中的火花点火型内燃机中，检测到在点燃之后通过火花塞在燃烧室中产生的离子电流，并确定火花塞的闷燃 在检测离子电流的基础上。 检测内燃机的运转状态，并且当检测到的运行状态落在对应于进气口的运转范围设定的运转判定范围内时，基于检测出的离子电流满足预定条件来确定火花塞的阴燃 使用预定的发动机转速作为上限和预定的进气口压力作为下限来实现接近大气压的端口压力。

    Magnetic head actuator with centered deviation
    10.
    发明授权
    Magnetic head actuator with centered deviation 失效
    具有中心偏差的磁头执行器

    公开(公告)号：US07414815B2

    公开(公告)日：2008-08-19

    申请号：US11819427

    申请日：2007-06-27

    申请人： Shinji Fujimoto ,  Masato Shibuya ,  Hisashi Kaneko ,  Tsuneyori Ino ,  Yukihiro Komura ,  Mitsuhiro Izumi ,  Kei Funabashi

    发明人： Shinji Fujimoto ,  Masato Shibuya ,  Hisashi Kaneko ,  Tsuneyori Ino ,  Yukihiro Komura ,  Mitsuhiro Izumi ,  Kei Funabashi

    IPC分类号： G11B5/55 ,  G11B21/22

    CPC分类号： G11B5/5569 ,  G11B5/54

    摘要： A magnetic disk device comprises a magnetic disk in which a data zone is formed. An actuator has a voice coil and a head slider carrying a magnetic head, the actuator being swung to move the magnetic head over the disk between an innermost position of the data zone and an outermost position of the data zone. A magnet has a magnetization center and is opposed to the voice coil so that a voice coil motor which swings the actuator is formed, the magnet having a north pole and a south pole confronting each other via the magnetization center. The magnetic disk device is provided so that a deviation of a center of the voice coil from the magnetization center when the magnetic head is in the innermost position of the data zone is substantially equal to a deviation of the center of the voice coil from the magnetization center when the magnetic head is in the outermost position of the data zone.

    摘要翻译： 磁盘装置包括形成数据区的磁盘。 致动器具有音圈和携带磁头的磁头滑块，所述致动器摆动以使磁头在数据区的最内位置和数据区的最外位置之间的磁盘上移动。 磁体具有磁化中心并且与音圈相对，从而形成摆动致动器的音圈电动机，磁体具有通过磁化中心彼此相对的北极和南极。 提供磁盘装置，使得当磁头处于数据区的最内位置时，音圈的中心与磁化中心的偏差基本上等于音圈的中心与磁化的偏差 当磁头位于数据区的最外侧位置时居中。