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公开(公告)号：US20180306163A1
公开(公告)日：2018-10-25
申请号：US15493502
申请日：2017-04-21
申请人： Caterpillar Inc.
摘要： A system and method for determining a health state of a spark plug of an ignition system is provided. The system includes a detection module configured to measure a time duration associated with a current flowing through a primary coil of the ignition system. The detection module is configured to generate a signal indicative of the time duration. The controller, coupled to the detection module, is configured to receive the signal and determine a secondary voltage across a secondary coil of the ignition system based on the received signal. The controller is further configured to determine the health state of the spark plug based on the secondary voltage. The controller is further configured to control at least one of a primary voltage supplied to the primary coil, the spark duration and the timing of firing the spark plug based on the health state of the spark plug.
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公开(公告)号：US10082125B2
公开(公告)日：2018-09-25
申请号：US15302072
申请日：2015-04-09
申请人： DENSO CORPORATION
发明人： Hidekazu Fujimoto , Makoto Toriyama , Satoru Nakayama , Yasuomi Imanaka , Kanechiyo Terada , Shunichi Takeda , Kaori Doi , Junichi Wada , Hisaharu Morita , Naohisa Nakamura
CPC分类号： F02P11/06 , F02D9/08 , F02D37/02 , F02D41/0002 , F02D41/20 , F02D41/22 , F02D41/221 , F02D41/3005 , F02D2041/2058 , F02D2041/227 , F02P3/053 , F02P5/1502 , F02P9/002 , F02P9/007 , F02P15/10 , F02P17/00 , Y02T10/42 , Y02T10/46
摘要： In a control apparatus, a discharge control unit controls an igniter unit so that a flow of current from a primary coil towards a ground side is blocked, thereby generating a high voltage in a secondary coil, and controls a spark plug so that the spark plug generates electric discharge. An energy input control unit controls an energy input unit so as to input electrical energy to an ignition coil after the start of control of the spark plug by the discharge control unit. A control unit and an abnormality detecting unit detects an abnormality in the igniter unit or the ignition coil based on a first threshold and a first current value that is a value corresponding to a current detected by a current detection circuit at this time, when a first predetermined period elapses after the start of control of the spark plug by the discharge control unit.
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3.发明授权公开(公告)号：US09735553B1
公开(公告)日：2017-08-15
申请号：US14813443
申请日：2015-07-30
申请人： FRAM GROUP IP LLC
发明人： Jing Zheng , Corey Eiden , Matthew B. Below
CPC分类号： H01T13/58 , F02P17/00 , G01R31/12 , G01R31/1227 , H01T13/60
摘要： A system for testing an insulative material for a spark plug comprises a test spark plug having at least a center electrode and an insulator comprised of an insulative material surrounding at least a portion of the center electrode, wherein the insulator has an end that is closed, whereby the closed end of the insulator encloses an end of the center electrode. The system further includes a test engine that simulates engine conditions, wherein a conventional spark plug is installed in a first ignition port of the test engine and the test spark plug is installed in a second ignition portion of the test engine and a control system for controlling ignition signals to the test spark plug and the conventional spark plug.
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4.发明授权Apparatus and method for static testing a spark plug assembled in an internal combustion engine including cracked ceramic insulator detection 有权用于静态测试组装在内燃机中的火花塞的装置和方法，包括破裂的陶瓷绝缘体检测公开(公告)号：US09249773B2
公开(公告)日：2016-02-02
申请号：US13658252
申请日：2012-10-23
摘要： An apparatus and method is provided for testing a spark plug after the spark plug is assembled in an internal combustion engine. The apparatus includes a high voltage test probe to mechanically probe the spark plug. The high voltage test probe includes a non-electrically conductive part, an electrically conductive ring substantially shielded by the non-electrically conductive part, and a high voltage contactor for electrically connecting to a terminal end of the spark plug. The apparatus also includes a high voltage control box having a high voltage source and an electrical ground, and including at least one of an insulator crack detection circuit and a spark plug firing circuit. The method includes using the apparatus to test assembled spark plugs.
摘要翻译： 提供一种用于在火花塞组装在内燃机中之后测试火花塞的装置和方法。 该装置包括用于机械地探测火花塞的高压测试探针。 高电压测试探针包括非导电部分，基本上被非导电部分屏蔽的导电环，以及用于电连接到火花塞终端的高压接触器。 该装置还包括具有高电压源和电接地的高压控制箱，并且包括绝缘体裂纹检测电路和火花塞点火电路中的至少一个。 该方法包括使用该装置来测试组装的火花塞。
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公开(公告)号：US20160010616A1
公开(公告)日：2016-01-14
申请号：US14762252
申请日：2013-01-23
申请人： Koshiro KIMURA
发明人： Koshiro KIMURA
CPC分类号： F02P17/12 , F02D35/021 , F02D41/18 , F02P3/05 , F02P9/002 , F02P17/00 , F02P17/02 , G01F9/001
摘要： An ignition control apparatus for an internal combustion engine of the present invention includes a spark plug (34) for igniting an air-fuel mixture in a cylinder, and is configured to be capable of measuring a discharge voltage and a discharge current of the spark plug (34). The ignition control apparatus determines the flow velocity of an in-cylinder gas based on a discharge energy integration value that is obtained by integrating a product of the discharge voltage and the discharge current over a predetermined period.
摘要翻译： 本发明的内燃机的点火控制装置具有：点火缸内的空气燃料混合物的火花塞（34），能够测定火花塞的放电电压和放电电流 （34）。 点火控制装置根据通过将放电电压和放电电流的乘积积分预定期间而获得的放电能量积分值来决定缸内气体的流速。
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公开(公告)号：US20150330922A1
公开(公告)日：2015-11-19
申请号：US14655154
申请日：2013-11-04
发明人： Hajime OTA , Taichiro NISHIKAWA , Kazuo YAMAZAKI , Masao SAKUTA , Takeshi TOKUDA
CPC分类号： G01N25/04 , C22C19/005 , C22C19/03 , C22C19/05 , C22C19/058 , C22F1/10 , F02P17/00 , G01N17/00 , G01N33/20 , H01T13/39 , H01T13/58
摘要： A sample composed of a nickel-based metal is immersed in a corrosive solution (aqueous solution containing an acid and sodium chloride). The sample that has been immersed in the corrosive solution is exposed to a flame of engine oil, and further heated. By immersing the sample in the particular corrosive solution, a Ni-enriched phase which is deficient in additional elements and in which the Ni concentration increases is formed in a surface layer region of the sample. By exposing the sample having the Ni-enriched phase to the flame of the engine oil, components in the engine oil are activated and brought into contact with the sample to form a low-melting point phase in the surface layer region of the sample. By heating the sample having the low-melting point phase to melt the low-melting point phase and resolidifying the low-melting point phase, particles and the like can be formed depending on the type of material of the sample. The ease of the generation of particles can be evaluated by using simple equipment instead of an engine for testing.
摘要翻译： 将由镍基金属构成的样品浸渍在腐蚀性溶液（含有酸和氯化钠的水溶液）中。 浸在腐蚀性溶液中的样品暴露于发动机油的火焰中，并进一步加热。 通过将样品浸渍在特定的腐蚀性溶液中，在样品的表层区域中形成附加元素不足且Ni浓度增加的富Ni相。 通过将具有富Ni相的样品暴露于发动机油的火焰，发动机油中的组分被激活并与样品接触，以在样品的表面层区域形成低熔点相。 通过加热具有低熔点相的样品以熔化低熔点相并重新凝固低熔点相，可以根据样品的材料的类型形成颗粒等。 可以通过使用简单的设备而不是用于测试的发动机来评估颗粒的产生的容易性。
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公开(公告)号：US09068548B2
公开(公告)日：2015-06-30
申请号：US14590798
申请日：2015-01-06
发明人： Ralph Wayne Cunningham , Michael Joseph Zaitz , Ken Jahr , Chris Paul Glugla , Robert Sarow Baskins
CPC分类号： F02P17/02 , F02D17/02 , F02D35/02 , F02D35/021 , F02D35/027 , F02D41/008 , F02D41/0087 , F02D41/1454 , F02D41/1498 , F02D41/221 , F02D41/26 , F02D2041/228 , F02D2200/1015 , F02D2200/50 , F02D2250/26 , F02P17/00 , Y02T10/40
摘要： Methods and systems are provided for identifying and indicating degradation of an engine cylinder spark plug. In response to a cylinder misfire event during selected engine operating conditions, followed by an occurrence of a threshold number and/or rate of pre-ignition events in the same cylinder, a controller may determine that the spark plug is degraded. The controller may limit combustion in the cylinder in response to the degradation. Additionally, cylinder pre-ignition mitigating steps may be taken.
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公开(公告)号：US20150144101A1
公开(公告)日：2015-05-28
申请号：US14554742
申请日：2014-11-26
申请人： DENSO CORPORATION
发明人： Masataka DEGUCHI
摘要： A control apparatus, which is for an internal combustion engine with a spark plug having a center electrode and a ground electrode disposed so as to form a spark discharge gap therebetween, includes a voltage applying section for applying a voltage to the spark discharge gap, a constant-voltage path including a constant-voltage element parallel-connected to the spark discharge gap of the spark plug for preventing the spark discharge gap from being applied with a voltage higher than a set voltage, and an operation control circuit for controlling an operating condition of the internal combustion engine. The operation control circuit is configured to measure a current-flowing time during which a current flows through the constant-voltage path when a voltage higher than the set voltage is applied to the constant-voltage path, and change the operating condition of the internal combustion engine in accordance with the measured current-flowing time.
摘要翻译： 一种用于具有火花塞的内燃机的控制装置，所述火花塞具有设置成在其间形成火花放电间隙的中心电极和接地电极，所述火花塞包括用于对所述火花放电间隙施加电压的电压施加部， 恒定电压路径，包括与火花塞的火花放电间隙并联的恒压元件，用于防止火花放电间隙施加高于设定电压的电压;以及操作控制电路，用于控制工作条件 的内燃机。 操作控制电路被配置为当高于设定电压的电压施加到恒定电压路径时，测量电流流过恒定电压路径的电流流动时间，并且改变内部燃烧的工作状态 发动机按照测得的电流流动时间。
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公开(公告)号：US20150042344A1
公开(公告)日：2015-02-12
申请号：US14451688
申请日：2014-08-05
发明人： Andreas Bleil , Michael Eberhardt , Ralf Müller , Clemens Rinkert , Dirk Wollin , Markus Pados
CPC分类号： F02P11/00 , F02P17/00 , F02P19/02 , F02P19/025 , G01M15/042 , G01R27/02 , G01R31/005
摘要： Described is a method for detecting a glow plug replacement of an engine, wherein a first value of a temperature-dependent variable is measured at a first glow plug of the engine and, simultaneously, a second value of the temperature-dependent variable is measured at a second glow plug of the engine. The first value of the temperature-dependent variable is compared with a stored reference value of the first glow plug and a glow plug replacement is detected if the difference of the first value from the reference value exceeds a threshold value. According to this disclosure, it is provided that the reference value is a value which, in an earlier measurement, was measured at the first glow plug simultaneously with the measurement of a value at the second glow plug which corresponds to the second value within a predefined tolerance.
摘要翻译： 描述了一种用于检测发动机的电热塞更换的方法，其中在发动机的第一个电热塞处测量温度变化的第一值，并且同时测量温度依赖变量的第二值 发动机的第二个电热塞。 将温度相关变量的第一值与第一电热塞的存储参考值进行比较，并且如果第一值与参考值的差超过阈值，则检测预热塞替换。 根据本公开，提供了参考值，其是在先前测量中，在第一电热塞同时测量第二电热塞上的值，该值对应于预定义的第二电热塞内的第二值 公差。
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10.发明申请公开(公告)号：US20150040866A1
公开(公告)日：2015-02-12
申请号：US14452631
申请日：2014-08-06
发明人： Yoshimasa KINOSHITA
CPC分类号： F02P5/152 , F02D9/02 , F02D11/107 , F02D31/002 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/22 , F02D2011/102 , F02D2041/227 , F02D2250/26 , F02P3/02 , F02P5/045 , F02P5/1526 , F02P11/00 , F02P17/00 , G01L23/22 , Y02T10/42 , Y02T10/46
摘要： An engine system for a vessel propulsion device includes an engine including an intake amount adjusting unit and an ignition plug, and configured to generate a drive force for the vessel propulsion device. The engine system includes an ignition timing control unit, a knocking detecting unit, a knocking retard control unit that retards the ignition timing of the ignition plug by a unit retard amount when the knocking detecting unit detects knocking, an abnormality judging unit that, when a state where the knocking detecting unit detects knocking at intervals within a predetermined time continues, judges that an abnormality has occurred based on a continued state of knocking detection, and an intake amount limiting unit that limits the intake amount of the engine based on judgment of an abnormality made by the abnormality judging unit.
摘要翻译： 一种用于船舶推进装置的发动机系统包括：发动机，其包括进气量调节单元和火花塞，并且构造成产生用于船舶推进装置的驱动力。 发动机系统包括点火正时控制单元，爆震检测单元，爆震延迟控制单元，当爆震检测单元检测到爆震时，将火花塞的点火正时延迟单位延迟量;异常判断单元，当 其中，所述爆震检测单元在预定时间内以间隔检测到爆震继续的状态，基于所述爆震检测的持续状态来判断为发生了异常;以及进气量限制部，其根据 异常判定部发生异常。
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