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公开(公告)号：US4979485A
公开(公告)日：1990-12-25
申请号：US416303
申请日：1989-10-03
Applicant: Toshio Iwata , Wataru Fukui
Inventor： Toshio Iwata , Wataru Fukui
CPC classification number: F02D41/009 , F02B77/08 , F02D41/1406 , F02P7/073 , F02D2041/0092
Abstract: A cylinder recognition apparatus for a multi-cylinder internal combustion engine has a position sensor which generates for each cylinder output pulses which indicate prescribed positions of the piston of the cylinder. The output pulse for a prescribed reference cylinder of the engine has a different pulse width from the pulses for the other cylinders. A cylinder recognition circuit calculates a ratio which is a function of the pulse width and the period of each output pulse. A comparator compares the ratio with a prescribed value and a cylinder is recognized on the basis of the comparison.
Abstract translation: 用于多缸内燃机的气缸识别装置具有位置传感器，该位置传感器为每个气缸产生指示气缸的活塞的规定位置的脉冲。 发动机规定的参考气缸的输出脉冲与其他气缸的脉冲具有不同的脉冲宽度。 气缸识别电路计算作为脉冲宽度和每个输出脉冲的周期的函数的比率。 比较器将比率与规定值进行比较，并且基于比较来识别气缸。
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公开(公告)号：US06339324B1
公开(公告)日：2002-01-15
申请号：US09659452
申请日：2000-09-11
Applicant: Hiroshi Sakanoue , Noriaki Hayashi , Izuru Shinjo , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi
Inventor： Hiroshi Sakanoue , Noriaki Hayashi , Izuru Shinjo , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi
IPC: G01P344
CPC classification number: G01P3/487
Abstract: The invention provides a magnetic object motion sensor which can operate with high accuracy not only when a magnetic object moves at high speeds but also even when it moves at low speeds, which can be produced with a greater production tolerance and a greater dimensional tolerance. The magnetic object motion sensor includes: magnetoelectric transducer elements disposed opposite protrusions of a moving magnetic object; a magnet for generating bias magnetic flux toward the magnetoelectric transducer elements; unbalanced bias producing means for producing imbalance in the magnetic field sensitivity between the magnetoelectric transducer elements; a differential amplifier for amplifying in a differential fashion the electric signals output by the magnetoelectric transducer elements; a waveform shaping circuit for converting the differential signal output by the differential amplifier to a pulse signal corresponding to the edges of the magnetic material protrusion; the unbalanced bias producing means producing a difference in the amplitude of the magnetic flux density between that applied to one element of the pair of magnetoelectric transducer elements and that applied to the other element so that the difference in the electric signal level corresponding to the difference in the amplitude of the magnetic flux density becomes greater than the hysteresis of the waveform shaping circuit, thereby, in effect, introducing imbalance in the sensitivity between the magnetoelectric transducer elements.
Abstract translation: 本发明提供了一种磁性物体运动传感器，其不仅在磁性物体以高速移动时，而且即使当其以低速移动时也能以高精度进行操作，这可以以更大的制造公差和更大的尺寸公差产生。 磁性物体运动传感器包括：与运动的磁性物体相对的突起设置的磁电换能器元件; 用于向磁电换能器元件产生偏磁通的磁体; 用于产生磁电换能器元件之间的磁场灵敏度不平衡的不平衡偏压产生装置; 用于以差分方式放大由电磁换能器元件输出的电信号的差分放大器; 波形整形电路，用于将由差分放大器输出的差分信号转换为对应于磁性材料突起的边缘的脉冲信号; 所述不平衡偏置产生装置产生施加到所述一对磁电换能器元件中的一个元件之间的磁通密度的振幅和施加到另一元件的磁通密度的差异，使得与所述另一元件相对应的电信号电平的差异 磁通密度的振幅变得大于波形整形电路的滞后，从而实际上引入了磁电换能器元件之间的灵敏度不平衡。
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公开(公告)号：US6054859A
公开(公告)日：2000-04-25
申请号：US743398
申请日：1996-11-01
Applicant: Yasuhiro Takahashi , Wataru Fukui
Inventor： Yasuhiro Takahashi , Wataru Fukui
CPC classification number: F02P17/12
Abstract: A combustion state detecting apparatus for an internal combustion engine is capable of ensuring a satisfactory ion current detection sensitivity and reliability by preventing discharge of bias voltage to an ignition coil to thereby protect the bias voltage against lowering. The apparatus includes an ignition coil for generating a firing voltage, spark plugs to which the firing high-voltage is applied via a high-voltage supply circuitry connected to an output terminal of the ignition coil, a biasing device connected to the high-voltage supply circuitry for applying a bias voltage to the spark plug, a bias voltage protection device inserted between the output terminal of the ignition coil and the biasing device, an ion current detecting device for detecting ions generated in succession to discharging of the spark plug upon application of the firing high-voltage as an ion current which flows through the spark plug under the bias voltage applied to the spark plug, and an electronic control unit for detecting combustion state on the basis of detected value of the ion current.
Abstract translation: 用于内燃机的燃烧状态检测装置能够通过防止对点火线圈的偏压的放电来确保令人满意的离子电流检测灵敏度和可靠性，从而保护偏压不被降低。 该装置包括用于产生点火电压的点火线圈，经由连接到点火线圈的输出端子的高压电源电路施加击发高电压的火花塞，连接到高压电源的偏置装置 用于向火花塞施加偏置电压的电路，插入在点火线圈的输出端子和偏置装置之间的偏置电压保护装置，用于检测随着施加火花塞时排放火花塞而产生的离子的离子电流检测装置 作为在施加到火花塞的偏置电压下流过火花塞的离子电流的点火高电压，以及基于离子电流的检测值来检测燃烧状态的电子控制单元。
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公开(公告)号：US6040698A
公开(公告)日：2000-03-21
申请号：US890020
申请日：1997-07-10
Applicant: Yasuhiro Takahashi , Wataru Fukui
Inventor： Yasuhiro Takahashi , Wataru Fukui
CPC classification number: F02P17/12
Abstract: A combustion state detecting apparatus for an internal-combustion engine does not incur deteriorated ignition characteristics because the ionic current detecting circuit thereof is not affected by ignition current. The combustion state detecting apparatus is equipped with an ionic current detecting circuit (10A) which includes a biasing device (C) connected to the low voltage end of a secondary winding (2b) of an ignition coil (2) and which detects ionic current (i) flowing from the biasing device via a spark plug (4); rectifying device (5) which is inserted between the biasing device and the secondary winding so that the ionic current flows in the forward direction; a voltage clamping device (6) inserted between the secondary winding and the ground; and an ECU (20) which detects the combustion state according to the ionic current. The biasing device applies a bias voltage (VBi) of the opposite polarity from the high voltage for ignition to the spark; and the voltage clamping device limits a voltage (Vc) at the low voltage end of the secondary winding to a predetermined value when the high voltage for ignition appears, the absolute value of the predetermined value being set to the absolute value or more of the bias voltage.
Abstract translation: 由于其离子电流检测电路不受点火电流的影响，所以内燃机的燃烧状态检测装置不会引起劣化的点火特性。 燃烧状态检测装置配备有离子电流检测电路（10A），其包括连接到点火线圈（2）的次级绕组（2b）的低电压端并且检测离子电流的偏置装置（C） i）通过火花塞（4）从偏压装置流出; 整流装置（5），其插入在偏置装置和次级绕组之间，使得离子电流沿正向流动; 插入在次级绕组和地之间的电压钳位装置（6）; 以及根据离子电流检测燃烧状态的ECU（20）。 偏置装置将与高电压相反极性的偏置电压（VBi）施加到火花点; 并且当点火高电压出现时，电压钳位装置将次级绕组的低电压端的电压（Vc）限制为预定值，将预定值的绝对值设置为偏置的绝对值或更大的绝对值 电压。
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公开(公告)号：US5929629A
公开(公告)日：1999-07-27
申请号：US927256
申请日：1997-09-11
Applicant: Naoki Hiraoka , Hiroshi Sakanoue , Noriaki Hayashi , Wataru Fukui , Yutaka Ohashi
Inventor： Naoki Hiraoka , Hiroshi Sakanoue , Noriaki Hayashi , Wataru Fukui , Yutaka Ohashi
Abstract: The invention provides a high-accuracy and high-reliability magnetic sensor which can be produced with a high production yield at a low cost. The magnetic sensor includes: a main sensor unit including: an intermediate part in the form of a short rectangular prism serving as a fitting part; a seating formed on one end face of the intermediate part such that the seating has a step shape and such that the exterior circumferential surface of the seating serves as a fitting-in portion; a main part disposed at a right angle on the principal surface of the seating, the main part including: a sensor element disposed on the end of the main part; a permanent magnet disposed adjacent to the sensor element; and an electronic component; and a connector extending from the intermediate part; and a case including: a sleeve in the form of a cylinder with a closed end and an open end, the sleeve having a receiving portion formed on the open end, the sleeve having a sealed space serving as a space in which the main part is placed; and a holding part extending from the sleeve and including a receiving part and a separation stopper; wherein the magnetic sensor is characterized in that a liquid reservoir space is formed between the fitting-in portion and the receiving portion along the circumference, and the liquid reservoir space is filled with liquid packing.
Abstract translation: 本发明提供了一种高精度和高可靠性的磁传感器，其可以以低成本生产高产率。 磁传感器包括：主传感器单元，包括：作为配合部分的短矩形棱镜形式的中间部分; 在所述中间部的一个端面形成的座部，使得所述座部具有台阶形状，并且所述座部的所述外周面形成为嵌合部; 所述主体部分以直角设置在所述座的主表面上，所述主要部分包括：传感器元件，设置在所述主要部分的端部; 设置在传感器元件附近的永磁体; 和电子元件; 以及从所述中间部延伸的连接器。 以及壳体，其包括：具有封闭端和开口端的圆柱形的套筒，所述套筒具有形成在所述开口端上的容纳部分，所述套筒具有用作主要部分的空间的密封空间 放置 以及保持部，其从所述套筒延伸并且包括容纳部和分离止动件; 其特征在于，所述磁性传感器的特征在于，在所述安装部与所述容纳部之间形成有沿着所述圆周的液体储存空间，所述储液空间填充有液体填充物。
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Patent Agency Ranking
公开(公告)号：US5821744A
公开(公告)日：1998-10-13
申请号：US630584
申请日：1996-04-10
Applicant: Izuru Shinjo , Noriaki Hayashi , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi
Inventor： Izuru Shinjo , Noriaki Hayashi , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi
CPC classification number: G01P1/026 , B29C45/14655 , G01P1/00 , G01P3/487 , G01P3/488 , Y10T29/4902 , Y10T29/49121 , Y10T29/49158
Abstract: A rotation sensor is provided which is inexpensive and has excellent performance, high workability, and high reliability. Specifically, the rotation sensor contains a magnetoelectric conversion device, a base, an insert conductor, a surface mount electrode part, an electronic component, and a connector part. The magnetoelectric conversion device senses a magnetic flux change associated with a rotation of a magnetic rotation body, and the base is made of resin and holds the magnetoelectric conversion device. The insert conductor is insert-molded in the base, and an exposed part of the insert conductor is exposed to a surface of the base. The surface mount electrode part is formed by at least the exposed part of the insert conductor and is connected to the magnetoelectric conversion device. The electronic component is mounted on the surface mount electrode part, and the connector part is formed by using an end of the insert conductor as a terminal electrode.
Abstract translation: 提供了一种价格低廉，性能优异，可加工性高，可靠性高的旋转传感器。 具体地，旋转传感器包括磁电转换装置，基座，插入导体，表面安装电极部件，电子部件和连接器部件。 磁电转换装置感测与磁旋转体的旋转相关联的磁通量变化，并且基座由树脂制成并保持磁电转换装置。 插入导体嵌入成型在基座中，并且插入导体的暴露部分暴露于基部的表面。 表面安装电极部分至少由插入导体的露出部分形成，并连接到磁电转换装置。 电子部件安装在表面安装电极部分上，并且通过使用插入导体的端部作为端子电极来形成连接器部分。
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公开(公告)号：US5801529A
公开(公告)日：1998-09-01
申请号：US740623
申请日：1996-10-31
Applicant: Hideki Umemoto , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi , Masahiro Yokotani
Inventor： Hideki Umemoto , Naoki Hiraoka , Wataru Fukui , Yutaka Ohashi , Masahiro Yokotani
IPC: G01B7/30 , F02D35/00 , G01B7/00 , G01D5/14 , G01D5/16 , G01D5/18 , G01D5/245 , G01R33/09 , G01B7/14 , G01R33/06 , F62B53/06
CPC classification number: G01D5/147
Abstract: The invention provides a sensing device capable of outputting a correct signal precisely corresponding to a particular position (angle) of, for example a protruding or recessed portion of a rotating member made of a magnetic material. The sensing device includes: a magnet for generating magnetic field; a rotary member of magnetic material for changing a magnetic field generated by the magnet, the rotary member of magnetic material being disposed a predetermined distance apart from the magnet; and a giant magnetoresistance device for detecting the varying magnetic field, the operating range of the giant magnetoresistance device being set such that the change in resistance of the giant magnetoresistance device is uniform over the entire operating range in both directions of change in the magnetic field induced by the rotary member of magnetic material, wherein the giant magnetoresistance device is disposed in such a manner that the center of the magnetic field sensing plane of the giant magnetoresistance device deviates from the center of the magnet in a direction parallel to a plane containing the displacement direction of the rotary member of magnetic material.
Abstract translation: 本发明提供一种感测装置，其能够输出精确对应于由磁性材料制成的旋转构件的突出或凹陷部分的特定位置（角度）的正确信号。 感测装置包括：用于产生磁场的磁体; 用于改变由所述磁体产生的磁场的磁性材料的转动件，所述磁性材料的所述转动件与所述磁体隔开预定距离; 以及用于检测变化的磁场的巨磁电阻装置，巨磁电阻装置的工作范围被设定为使得巨磁电阻装置的电阻变化在整个工作范围内在磁场变化的两个方向上是均匀的 通过磁性材料的旋转构件，其中巨磁电阻装置以这样的方式设置，使得巨磁电阻装置的磁场感测平面的中心在与包含位移的平面平行的方向上偏离磁体的中心 磁性材料的旋转构件的方向。
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公开(公告)号：US5785020A
公开(公告)日：1998-07-28
申请号：US890671
申请日：1997-07-09
Applicant: Yasuhiro Takahashi , Wataru Fukui
Inventor： Yasuhiro Takahashi , Wataru Fukui
CPC classification number: G01L23/221 , F02P17/12 , G01L23/225
Abstract: A combustion state detecting apparatus for an internal-combustion engine permits an improved signal-to-noise ratio of a knocking signal with a resultant improved controllability without adding to the load on an electronic control unit (ECU). The combustion state detecting apparatus is equipped with: a knocking signal processing circuit 20 which generates a knocking signal (K) according to an ionic current detection signal (Ei); and an ECU (2A) which detects the combustion state at a spark plug according to the ionic current detection signal and the knocking signal.
Abstract translation: 用于内燃机的燃烧状态检测装置允许提高爆震信号的信噪比，从而提高可控性，而不增加电子控制单元（ECU）上的负载。 燃烧状态检测装置配备有：根据离子电流检测信号（Ei）产生爆震信号（K）的爆震信号处理电路20。 以及根据离子电流检测信号和敲击信号来检测火花塞的燃烧状态的ECU（2A）。
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19.发明授权
公开(公告)号：US5351528A
公开(公告)日：1994-10-04
申请号：US49581
申请日：1993-04-21
Applicant: Wataru Fukui , Toshio Iwata
Inventor： Wataru Fukui , Toshio Iwata
Abstract: Misfiring in an engine cylinder can be detected based on the pressure therein as sensed by a pressure sensor with a high degree of reliability at any time even if the output signal of the pressure sensor contains an offset component superposed on a pressure component representative of the actual cylinder pressure. In one form, the pressure sensor output is differentiated to eliminate the influence of the offset component and then processed to generate a power stroke pressure information signal in the form of the time of a pressure-change peak in the differentiated pressure sensor output or an integrated value of the differentiated output, which is then compared with a threshold so as to determine whether misfiring took place in the cylinder. In another form, the offset component is calculated based on the pressure in the cylinder at two different crank angles during a compression stroke, and it is then removed from the pressure sensor output and compared with a threshold or it may be integrated for a prescribed crank angle range around TDC before comparison with the threshold. In a further form, an expected pressure in the cylinder at a third crank angle during a power stroke is calculated based on the cylinder pressures at first and second crank angles during a compression stroke preceding the power stroke, and then compared with the cylinder pressure as sensed by the pressure sensor at the third crank angle for misfiring determination.
Abstract translation: 即使压力传感器的输出信号包含叠加在代表实际的压力分量上的偏移分量，也可以基于压力传感器在任何时刻具有高可靠性的压力来检测发动机气缸中的点火 气缸压力。 在一种形式中，压力传感器输出被微分以消除偏移分量的影响，然后被处理以产生在微分压力传感器输出中的压力变化峰值时间形式的功率冲程压力信息信号或集成 差分输出的值，然后将其与阈值进行比较，以便确定在气缸中是否发生失火。 在另一种形式中，基于压缩行程期间在两个不同曲柄角处的气缸中的压力来计算偏移分量，然后将其从压力传感器输出中移除并与阈值进行比较，或者可以将其与用于规定曲柄 在TDC之前的角度范围与阈值进行比较。 在另一形式中，基于在功率冲程之前的压缩冲程期间的第一和第二曲柄角处的气缸压力来计算在功率冲程期间在第三曲柄角处的气缸中的预期压力，然后与气缸压力进行比较 由第三曲柄角度的压力传感器感测，用于进行失火判定。
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公开(公告)号：US5339784A
公开(公告)日：1994-08-23
申请号：US870913
申请日：1992-04-20
Applicant: Wataru Fukui
Inventor： Wataru Fukui
IPC: B63H21/21 , F02B61/04 , F02D31/00 , F02D41/00 , F02D41/14 , F02D41/18 , F16H59/24 , F02D41/02 , F02P5/15
CPC classification number: B63H21/265 , F02D31/007 , F02D41/144 , F02B61/045 , Y10T477/676
Abstract: A control apparatus for a marine engine capable of effectively suppressing a great variation in the rotational speed of the engine due to a great variation in an intake air pressure particularly when the engine is trolling. In one form, an air/fuel ratio of a mixture supplied to the engine is made constant to maintain engine output power at a constant level. In another form, the intake air pressure, based on which the engine is controlled, is averaged in such a manner as to reduce a variation in the engine rotational speed by using a greater averaging coefficient during trolling than at other times. In a further form, if a variation in the intake air pressure is less than a predetermined value, the intake air pressure is used for controlling the engine, whereas if otherwise, another engine operating parameter such as an opening degree of a throttle valve is used instead of the intake air pressure.
Abstract translation: 一种用于船用发动机的控制装置，其能够有效地抑制由于进气压力的大的变化引起的发动机的转速的大的变化，特别是在发动机拖曳时。 以一种形式，将供给发动机的混合物的空气/燃料比保持恒定，以将发动机输出功率维持在恒定水平。 在另一种形式中，发动机被控制的进气压力被平均化，以便在拖钓期间使用比其他时间更大的平均系数来减小发动机转速的变化。 进一步的形式是，如果进气压力的变化小于预定值，则使用进气压力来控制发动机，否则则使用诸如节流阀的开度的另外的发动机工作参数 而不是进气压力。
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