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    • 5. 发明授权
    • Snap-in type sparkplug voltage probe device for use in internal
combustion engine
    • 用于内燃机的卡入式火花塞电压探头装置
    • US5453694A
    • 1995-09-26
    • US262655
    • 1994-06-20
    • Shigeru MiyataYoshitaka YamadaHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • Shigeru MiyataYoshitaka YamadaHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • F02P17/00F02P17/12G01R15/16G01R31/00G01R1/06G01R15/00G01R19/165
    • G01R15/16F02P17/12G01R31/007F02P2017/006F02P2017/123
    • In a snap-in type spark plug voltage probe device, the insulator base has an upper half and a lower half, both ends of which are integrally connected by means of a flexible portion. The upper half and the lower half have a plurality of grooves in which spark plug cables are placed. The upper half and the lower half are joined together by the flexible portion when in a closed position. The upper half has an opening to receive a protrusion provided on the lower half of the insulator base to maintain the upper half of the insulator base along the grooves, providing static capacity between the electrode layer and the spark plug cables when voltage is applied across the spark plugs. A lead wire electrically connects the electrode layer to a microcomputer so as to analyze the burning condition based on the static capacity between the electrode layer and the spark plug cables. An electrical shield layer is embedded in the insulator base in the proximity of the electrode layer and connected to the internal combustion engine by way of a ground wire located at a side of the electrode layer remote from the grooves so as to electrically shield the electrical layer. An insulator sheet is embedded in the insulator base and located between the electrode layer and the electrical shield layer.
    • 在卡扣式火花塞电压探针装置中,绝缘体基座具有上半部和下半部,其两端通过柔性部分一体连接。 上半部和下半部具有放置火花塞电缆的多个槽。 当处于关闭位置时,上半部和下半部通过柔性部分连接在一起。 上半部具有开口以接收设置在绝缘体基座的下半部上的突出部,以沿着凹槽保持绝缘体基座的上半部分,当电压施加在电极层上时,在电极层和火花塞电缆之间提供静态电容 火花塞。 引线将电极层电连接到微型计算机,以基于电极层和火花塞电缆之间的静态容量来分析燃烧状况。 电绝缘层嵌入电极层附近的绝缘体基底中,并通过远离槽的位于电极层一侧的接地线与内燃机连接,以电屏蔽电层 。 绝缘片被嵌入绝缘体基底中,位于电极层和电屏蔽层之间。
    • 6. 发明授权
    • Misfire detector for use in internal combustion engine
    • 用于内燃机的失火探测器
    • US5365910A
    • 1994-11-22
    • US865910
    • 1992-04-09
    • Shigeru MiyataHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • Shigeru MiyataHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • F02P11/06F02P17/00F02P17/12
    • F02P11/06F02P17/12F02P2017/006F02P2017/123F02P2017/125
    • A misfire detector for use in an internal combustion engine has an ignition coil including a primary coil and a secondary coil. An interrupter circuit is provided for on-off actuation of primary current flowing through a primary circuit of the ignition coil. A distributor has a series gap provided in a secondary circuit of the ignition coil, and a spark plug is adapted to be energized from the ignition coil through the series gap of the distributor. A voltage charging circuit works to electrically charge a stray capacity inherent in the spark plug immediately after an end of a spark action of the spark plug. A spark plug voltage detector circuit distinguishes the voltage waveform of more than a predetermined reference voltage level so as to deform the voltage waveform into output signals. On the basis of the width of the output signals, a distinction circuit determines whether or not the spark action ignites an air-fuel mixture in a cylinder of the internal combustion engine.
    • 用于内燃机的失火检测器具有包括初级线圈和次级线圈的点火线圈。 提供了一个断续电路,用于对流过点火线圈的初级电路的初级电流进行开 - 关动作。 分配器具有设置在点火线圈的二次回路中的串联间隙,并且火花塞适于从点火线圈通过分配器的串联间隙通电。 电压充电电路用于在火花塞的火花作用结束之后立即对火花塞固有的杂散电容进行充电。 火花塞电压检测器电路将电压波形区分大于预定的参考电压电平,以将电压波形变形为输出信号。 基于输出信号的宽度,区分电路确定火花动作是否引燃内燃机的气缸中的空气 - 燃料混合物。
    • 7. 发明授权
    • Spark plug voltage probe device for detecting a burning condition and
reducing noise level in an internal combustion engine
    • 用于检测燃烧状态并降低内燃机噪声水平的火花塞电压探头装置
    • US5426370A
    • 1995-06-20
    • US982822
    • 1992-11-30
    • Shigeru MiyataYoshitaka YamadaHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • Shigeru MiyataYoshitaka YamadaHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • F02P17/00F02P17/12G01R15/16G01R31/00G01R1/06G01R15/00G01R19/165
    • G01R15/16F02P17/12G01R31/007F02P2017/006F02P2017/123
    • In a spark plug voltage probe device, an electrically shield casing (301) is provided in which electrical circuit boards (302) are accommodated, the shield casing (301) having an electrically conductive wall (313) connected to the ground. An insulator base (303) is securely attached to an outer bottom of the electrical shield casing (301) and has an electrode plate (332) embedded in the insulator base to be connected to the electrical circuit boards (302). A rubber plate (342) is securely attached to a lower surface of the insulator base (303). A plurality of grooves (333, 341) are provided between the insulator base (303) and the rubber plate (342) to locate the corresponding cables (305) in the grooves (333,341) so as to form a static capacity (C1) between the electrode plate (332) and the cables (305). This makes it possible to reduce a noise level by the ratio of the static capacity (C1) to a static capacity (C2) between the electrically conductive wall (313) and the electrode plate (332). An electrical shield sheet (343) is fixedly attached to the lower surface of the rubber plate (342).
    • 在火花塞电压探针装置中,设置有电屏蔽壳体(301),其中容纳电路板(302),所述屏蔽壳体(301)具有连接到地面的导电壁(313)。 绝缘体基座(303)牢固地附接到电气屏蔽壳体(301)的外部底部,并且具有嵌入到绝缘体基座中以连接到电路板(302)的电极板(332)。 橡胶板(342)牢固地附接到绝缘体基座(303)的下表面。 多个凹槽(333,341)设置在绝缘体基座(303)和橡胶板(342)之间,以将相应的电缆(305)定位在凹槽(333,341)中,以便形成静电容量(C1) 电极板(332)和电缆(305)。 这使得可以通过静电容量(C1)与导电壁(313)和电极板(332)之间的静态容量(C2)的比来降低噪声水平。 电屏蔽片(343)固定在橡胶板(342)的下表面上。
    • 8. 发明授权
    • Burning condition detecting device and burning control device in an
internal combustion engine
    • 内燃机燃烧状态检测装置及燃烧控制装置
    • US5253627A
    • 1993-10-19
    • US988842
    • 1992-12-10
    • Shigeru MiyataHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • Shigeru MiyataHideji YoshidaYoshihiro MatsubaraYasuo Ito
    • F02D35/02F02D41/14F02P17/00F02P17/12F02D41/04
    • F02P17/12F02D35/021F02P2017/006F02P2017/123F02P2017/125
    • In a burning condition detecting device in an internal combustion engine in which a high voltage is applied to a spark plug by way of a diode and a series gap of a distributor. A voltage charger circuit is provided to on-off actuates the primary coil to induce a charging voltage in the secondary circuit either during establishing the spark discharge or during a predetermined period of time immediately after an end of the spark discharge. The charging voltage is applied to the spark plug to electrically charge a stray capacity inherent in the spark plug so as to form a sparkplug voltage. A voltage divider circuit is provided to divide the sparkplug voltage in accordance with a high impedance element and a low impedance element. A voltage level detecting circuit is provided to detect a sparkplug voltage waveform divided by the voltage divider circuit. A distinction circuit detects a degree of variation of an attenuation time period of the spark plug voltage waveform so as to determine a variation of an air-fuel ratio of an air-fuel mixture gas injected into a cylinder of the internal combustion engine by a fuel injector.
    • 在内燃机中的燃烧条件检测装置中,其中通过二极管将高电压施加到火花塞和分配器的串联间隙。 提供一个电压充电器电路来启动初级线圈,以在建立火花放电期间或在火花放电结束之后的预定时间段期间引起次级电路中的充电电压。 将充电电压施加到火花塞以对火花塞固有的杂散电容进行充电,以形成火花塞电压。 提供分压器电路以根据高阻抗元件和低阻抗元件来划分火花塞电压。 提供电压电平检测电路以检测由分压电路划分的火花塞电压波形。 区别电路检测火花塞电压波形的衰减时间周期的变化程度,以便确定通过燃料喷射到内燃机的汽缸内的空气燃料混合气体的空燃比的变化 注射器。