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公开(公告)号：US5347855A
公开(公告)日：1994-09-20
申请号：US29235
申请日：1993-03-10
CPC分类号： H01T13/467 , F02P17/12 , F02P2017/121 , F02P2017/123 , F02P2017/125
摘要： In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a sparkplug voltage which is applied to a multi-electrode type spark plug. A check diode or a series gap is provided in a secondary circuit of the ignition coil so as to prevent a current flowing back to the ignition coil. A sparkplug voltage detector circuit detects an attenuation time length of a sparkplug voltage waveform presented subsequent to a predetermined time period after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine.
摘要翻译： 在用于内燃机的失火检测装置中，电断路器电路开关致动流过点火线圈的初级电路的初级电流，以引起施加到多电极型火花塞的火花塞电压。 在点火线圈的次级电路中设置校验二极管或串联间隙，以防止电流回流到点火线圈。 火花塞电压检测器电路检测在火花塞的火花动作结束之后的预定时间段之后呈现的火花塞电压波形的衰减时间长度。 基于衰减时间长度，区分电路确定在内燃机的气缸中是否发生失火。
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12.发明授权Sparkplug voltage probe device having a capacitance compensating function for an internal combustion engine 失效具有用于内燃机的电容补偿功能的火花塞电压探针装置
公开(公告)号：US5491417A
公开(公告)日：1996-02-13
申请号：US262653
申请日：1994-06-20
CPC分类号： G01R15/16 , F02P17/12 , G01R31/007 , F02P2017/006 , F02P2017/123
摘要： In a sparkplug voltage probe device, an insulator base is attached to the internal combustion engine, an upper surface of the insulator base having a plurality of grooves in which the corresponding cables are placed. An electrode plate is embedded in the insulator base along the grooves to form a static capacity between the electrode plate and an array of all the cables in the grooves, both of the longitudinal sides of the electrode plate being curled around the outermost cables respectively to compensate shortage of static capacitance so as to form a capacitance adjusting function in order to substantially even a distribution of the static capacity between the electrode plate and the array of all the cables in a direction perpendicular to a length of the electrode plate. A lead wire is provided to electrically connect the electrode plate to a microcomputer.
摘要翻译： 在火花塞电压探针装置中，绝缘体基座附接到内燃机，绝缘体基座的上表面具有多个凹槽，相应的电缆放置在该凹槽中。 电极板沿着沟槽嵌入绝缘体基体中，以在电极板和沟槽中的所有电缆的阵列之间形成静电容量，电极板的两个纵向侧面分别围绕最外面的电缆卷曲以补偿 静电容量不足以形成电容调整功能，以便在垂直于电极板的长度的方向上基本均匀地分布电极板和所有电缆阵列之间的静态电容。 提供引线以将电极板电连接到微型计算机。
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公开(公告)号：US5347856A
公开(公告)日：1994-09-20
申请号：US25346
申请日：1993-03-03
CPC分类号： F02P17/12 , H01T13/39 , F02P2017/121 , F02P2017/123 , F02P2017/125
摘要： In a misfire detector device for use in internal combustion engine, an electrical interrupter circuit on-off actuates a primary current flowing through a primary circuit of an ignition coil to induce a spark plug voltage. A check diode is provided in a secondary circuit of the ignition coil to prevent a current flowing back to the ignition coil. The spark plug has a center electrode, a front end of which is projected from an insulator, and an outer surface area of the projected front end being 25 mm.sup.2 or more. A spark plug voltage detector circuit detects an attenuation time length of a spark plug voltage waveform presented subsequent to a predetermined time period occurring after an end of a spark action of the spark plug. On the basis of the attenuation time length, a distinction circuit determines whether a misfire occurs in a cylinder of an internal combustion engine.
摘要翻译： 在用于内燃机的失火检测器装置中，断电器电路断开致动流过点火线圈的初级电路的初级电流以引起火花塞电压。 在点火线圈的次级电路中提供检查二极管，以防止电流回流到点火线圈。 火花塞具有中心电极，其前端从绝缘体突出，并且突出的前端的外表面区域为25mm 2以上。 火花塞电压检测器电路检测在火花塞的火花动作结束之后发生的预定时间段之后呈现的火花塞电压波形的衰减时间长度。 基于衰减时间长度，区分电路确定在内燃机的气缸中是否发生失火。
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公开(公告)号：US4895444A
公开(公告)日：1990-01-23
申请号：US180490
申请日：1988-04-12
CPC分类号： G01N21/43 , F02D19/0634 , F02D19/084 , F02D41/0025 , F02D2200/0611 , G01J2001/444 , Y02T10/36
摘要： A detector device for determining the mixing ratio of gasoline and alcohol includes a flint glass plate, one side of which is placed to be in direct contact with a mixing liquid of gasoline and alcohol, a light emitting diode is located at the other side of the flint glass plate to be opposite to the mixing liquid so that light beams emitted from the diode enter the flint glass plate to be incident on a boundary between the plate and the mixing liquid and a photo diode having a rectangular shape and located in coplanar relationship with the light emitting diode to receive the light beams totally reflected from the boundary. The distance between the photo diode and the light emitting diode and the width dimension of the photo diode are determined such to provide incident angles ranging from a minimum corresponding to the critical angle when the mixing liquid ratio is at lower limit of the predetermined range to a maximum corresponding to the critical angle when the mixing liquid ratio is at upper limit of the predetermined range.
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公开(公告)号：US4843248A
公开(公告)日：1989-06-27
申请号：US54380
申请日：1987-05-26
CPC分类号： G01N21/43 , G01N33/2852
摘要： A sensor for mixing ratio of liquid fuel comprising, a cylindrical enclosure having both inlet and outlet openings to act as a passage through which a mixing liquid fuel flows. A transparent column concentrically disposed in the enclosure to make the outer surface thereof contact with the liquid fuel, each end of the column is inserted into a ring-shaped wall provided with the inner side of the open end portion of the enclosure. A light emitting diode and a photo diode are provided so as to sandwich the column in the lengthwise direction, so that the light emitted from the former enters the column through its one end and reflects at the boundary of the column and the liquid fuel, and go onto the other end thereof to fall on the latter. A metallic sleeve sealant is provided, one side of which is liquid tightly telescoped into each end of the column, the other side of which is liquid tightly secured to the outer side of the wall to hermetically seal between the liquid fuel and the column.
摘要翻译： 一种用于液体燃料混合比的传感器，包括具有入口和出口两者的圆柱形外壳，以充当混合液体燃料流过的通道。 一个同心地设置在外壳中以使其外表面与液体燃料接触的透明柱，柱的每一端插入设置有外壳的开口端部的内侧的环形壁。 提供发光二极管和光电二极管，以使其在长度方向上夹持，使得从前者发射的光通过其一端进入柱体并在柱和液体燃料的边界处反射， 走到另一端落在后者上。 提供金属套筒密封剂，其一侧液体地伸缩到柱的每个端部，其另一侧液密地固定到壁的外侧，以密封液体燃料和柱之间。
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公开(公告)号：US4824244A
公开(公告)日：1989-04-25
申请号：US054390
申请日：1987-05-26
IPC分类号： G01N21/43 , F02B1/02 , F02B77/08 , F02D41/14 , G01J1/16 , G01J1/44 , G01N21/85 , G01N33/28 , F02D1/00 , F02B3/00 , G01N21/41
CPC分类号： F02B1/02 , F02B77/08 , F02D41/1451 , G01N21/85 , G01N33/2852 , F02F2007/0092 , G01J2001/1647 , G01J2001/444 , G01N2201/0621
摘要： A sensor for mixing ratio of liquid fuel comprising: a cylindrical enclosure having both inlet and outlet opening to act as a passage through which a mixing liquid fuel flows; a transparent column concentrically disposed into the enclosure to make outer surface contact with the liquid fuel; light emitting diode and photo diode each provided so as to sandwich the column in the lengthwise direction, so that the light emitted from the former enters the column through its one end and reflects at the boundary of the column and the liquid fuel, and go out of the other end thereof to fall on the latter; a temperature compensation photo diode disposed in the enclosure with the light of the light emitting diode partly as a light source to rectify the characteristics influenced under the ambient temperature variation; a voltage control circuit provided to control the voltage across the light emitting diode so as to maintain uniform output from the temperature compensation photo diode.
摘要翻译： 一种用于液体燃料混合比的传感器，包括：具有入口和出口两者的圆柱形外壳，其作为混合液体燃料流过的通道; 同心地设置在外壳中以使外表面与液体燃料接触的透明柱; 发光二极管和光电二极管各自设置成沿长度方向夹住柱，使得从前者发射的光通过其一端进入柱体并在柱和液体燃料的边界处反射出去 的另一端落在后者上; 设置在外壳中的温度补偿光电二极管部分地作为光源发光，以校正在环境温度变化下影响的特性; 电压控制电路，用于控制发光二极管两端的电压，以保持来自温度补偿光电二极管的均匀输出。
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17.发明授权Spark plug voltage probe device for detecting a burning condition and reducing noise level in an internal combustion engine 失效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
公开(公告)号：US5426370A
公开(公告)日：1995-06-20
申请号：US982822
申请日：1992-11-30
CPC分类号： G01R15/16 , F02P17/12 , G01R31/007 , F02P2017/006 , F02P2017/123
摘要： 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).
摘要翻译： 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。
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18.发明授权
公开(公告)号：US5253627A
公开(公告)日：1993-10-19
申请号：US988842
申请日：1992-12-10
申请人： Shigeru Miyata , Hideji Yoshida , Yoshihiro Matsubara , Yasuo Ito
发明人： Shigeru Miyata , Hideji Yoshida , Yoshihiro Matsubara , Yasuo Ito
CPC分类号： F02P17/12 , F02D35/021 , F02P2017/006 , F02P2017/123 , F02P2017/125
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5581188A
公开(公告)日：1996-12-03
申请号：US378262
申请日：1995-01-26
申请人： Shigeru Miyata , Noriaki Kondo
发明人： Shigeru Miyata , Noriaki Kondo
CPC分类号： F02P17/12 , F02B1/04 , F02P2017/123
摘要： A misfire detecting device for an ignition system, comprises high voltage applying device for applying a pulsed high voltage to each spark plug of an engine after completion of firing of the spark plug, voltage restricting device for restricting a peak of the pulsed high voltage to a highest possible value that does not cause firing of the spark plug, voltage detecting component for detecting a plug voltage across a center electrode-to-outer electrode of the spark plug after reducing the same, and misfire detecting device for detecting a misfire at each cylinder on the basis of a decay characteristic of a detection voltage which is caused by application of the pulsed high voltage. In another embodiment, the misfire detecting device has a high voltage device which monitors a detection voltage which is caused by application of the pulsed high voltage to each spark plug and controls the pulsed high voltage so that the detection voltage is maintained at a highest possible value that does not cause firing of the spark plug due to application of the pulsed high voltage to the spark plug.
摘要翻译： 一种用于点火系统的失火检测装置，包括高压施加装置，用于在火花塞完成点火之后向发动机的每个火花塞施加脉冲高压，用于将脉冲高压峰值限制到 不会引起火花塞触发的最高可能值，用于检测火花塞的中心电极对外部电极之后的插头电压的电压检测部件，以及用于检测各气缸失火的失火检测装置 基于由施加脉冲高电压引起的检测电压的衰减特性。 在另一个实施例中，失火检测装置具有高电压装置，其监测由对每个火花塞施加脉冲高电压而引起的检测电压，并控制脉冲高电压，使得检测电压保持在最高可能值 由于向火花塞施加脉冲高压，不会引起火花塞的点火。
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20.发明授权
公开(公告)号：US5503132A
公开(公告)日：1996-04-02
申请号：US364998
申请日：1994-12-28
申请人： Shigeru Miyata , Noriaki Kondo , Hiroshi Inagaki , Masaru Kondou
发明人： Shigeru Miyata , Noriaki Kondo , Hiroshi Inagaki , Masaru Kondou
CPC分类号： F02P15/08 , F02P17/12 , F02B1/04 , F02P2017/123 , F02P2017/125
摘要： A misfire detecting device for a double-ended distributorless ignition system is provided. The device includes a pulse generating circuit for generating a positive polarity pulse which is not so high as to cause spark discharge during the time after completion of spark discharge and before beginning of application of an ignition high voltage for next spark discharge. A reverse current preventing diode is connected at an anode to an output end of the pulse generating circuit and at a cathode to a positive polarity side of a secondary winding of an ignition coil. A plug voltage dividing circuit for dividing a plug voltage is connected between a center electrode and an outer or ground electrode of each of spark plugs to obtain a divided voltage. A detecting circuit detects a misfire of the spark plugs on the basis of an attenuation characteristic of the divided voltage after application of the positive polarity pulse.
摘要翻译： 提供了一种用于双端无分配器点火系统的失火检测装置。 该装置包括用于产生正极性脉冲的脉冲发生电路，该正极性脉冲不高于在火花放电完成后的时间期间以及开始施加用于下一次火花放电的点火高电压之前的火花放电。 反向电流防止二极管在阳极处连接到脉冲发生电路的输出端，并且在阴极连接到点火线圈的次级绕组的正极侧。 用于分割插头电压的插头分压电路连接在每个火花塞的中心电极和外部或接地电极之间以获得分压。 检测电路根据施加正极性脉冲之后的分压的衰减特性来检测火花塞的失火。
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