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1.发明授权Method of monitoring an internal combustion engine ignition system by measuring spark duration or voltage and distinction between isolated errors and recurrent errors 失效通过测量火花持续时间或电压以及隔离误差和复发误差之间的差异监测内燃机点火系统的方法
公开(公告)号：US5334938A
公开(公告)日：1994-08-02
申请号：US994453
申请日：1992-12-21
申请人： Karl-Heinz Kugler , Arnd-Matthias Langner , Karlheinz Riedel , Richard Schleupen , Christian Zimmermann
发明人： Karl-Heinz Kugler , Arnd-Matthias Langner , Karlheinz Riedel , Richard Schleupen , Christian Zimmermann
CPC分类号： F02P15/008 , F02P11/06 , F02P17/12
摘要： Monitoring apparatus is provided for the ignition system of an internal combustion engine such as is provided in a motor vehicle, which is capable of detecting a variety of malfunctions of ignition under a variety of engine operating ranges, so that the catalyst used in the exhaust system of the engine can be protected by setting lambda=0 and/or cutting off fuel injection to an inoperative cylinder, in as many instances of malfunction as possible. Various methods of monitoring are available and are correlated for selection in accordance with the different operating ranges of the engine. The ignition spark duration and the ignition discharge voltage are measured for individual sparks on the primary side of an ignition coil and are compared with limit values for correct ignition, these limit values being selected from a memory in accordance with the particular range of operating conditions in which the engine is operating. If the quality of malfunction detection is not good enough for individual ignition deficiencies to be reliably detected, deficiencies that are periodically recurrent or abnormally bunched are detected on a statistical basis.
摘要翻译： 本发明提供了一种用于内燃机的点火系统的监视装置，该内燃机设置在机动车辆中，该内燃机能够在各种发动机工作范围内检测各种点火故障，从而在排气系统中使用的催化剂 在尽可能多的故障情况下，可以通过设置λ= 0和/或切断燃油喷射到不工作气缸来保护发动机。 监测的各种方法是可用的并且根据发动机的不同工作范围进行选择。 针对点火线圈的初级侧的单个火花测量点火火花持续时间和点火放电电压，并将其与正确点火的极限值进行比较，这些极限值根据操作条件的特定范围从存储器中选择 发动机正在运行。 如果故障检测的质量不够好，可以可靠地检测到个别的点火缺陷，则在统计的基础上检测周期性复发或异常聚束的缺陷。
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公开(公告)号：US4918389A
公开(公告)日：1990-04-17
申请号：US239797
申请日：1988-09-01
IPC分类号： F02P17/12
CPC分类号： F02P17/12
摘要： Misfiring in internal combustion engines is detected by detecting the voltage induced in the primary winding of the ignition coil, and comparing it to a reference voltage which represents normal firing. The reference voltage preferably has a predetermined magnitude and a predetermined duration and the detected and reference voltage are compared so as to detect when the magnitude of the detected voltage falls below the predetermined magnitude before the end of the duration.
摘要翻译： 通过检测在点火线圈的初级绕组中感应出的电压，并将其与表示正常点火的参考电压进行比较，来检测内燃机中的点火。 参考电压优选地具有预定的大小和预定的持续时间，并且比较检测到的和参考电压，以便在持续时间结束之前检测检测电压的大小何时下降到预定的大小以下。
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公开(公告)号：US5201293A
公开(公告)日：1993-04-13
申请号：US790640
申请日：1991-11-08
CPC分类号： F02P11/06 , F02P15/008 , F02P17/12 , G01M15/042 , G01M15/11
摘要： A method of monitoring the operation of an internal combustion engine, such as is usable in a motor vehicle, combines the recognition of ignition failures with recognition of combustion failures. In one embodiment combustion failures are detected by the faltering of torque delivered by the engine. Ignition failures are electrically detected in terms of spark voltage or spark duration. In a first embodiment the rate of ignition and combustion failures is first compared with a predetermined threshold and if neither threshold is exceeded, the detection of an individual ignition failure is deemed plausible and is registered if detected. Only a failure rate in excess of a threshold results in cylinder-specific remedial measures to protect a catalyst in the exhaust system. In a second embodiment, unlike the first, only an ignition failure results in a cylinder-selective remedial action.
摘要翻译： 监视可用于机动车辆的内燃机的操作的方法将点火失败的识别与燃烧故障的识别相组合。 在一个实施例中，通过发动机输送的扭矩的震动来检测燃烧故障。 根据火花电压或火花持续时间电气检测点火故障。 在第一实施例中，首先将点火速率和燃烧故障率与预定阈值进行比较，并且如果超过阈值都不超过，则将单个点火失败的检测视为合理，并且如果检测到则被注册。 只有超过阈值的故障率才能导致汽缸专用的补救措施来保护排气系统中的催化剂。 在第二实施例中，与第一实施例不同，仅点火故障导致气缸选择性补救动作。
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4.发明授权Method for monitoring operations of an internal combustion engine to detect combustion misses 失效用于监测内燃机的操作以检测燃烧缺失的方法
公开(公告)号：US5619975A
公开(公告)日：1997-04-15
申请号：US666361
申请日：1996-06-20
申请人： Peter-Jurgen Schmidt , Manfred Mezger , Walter Gollin , Arnd-Matthias Langner , Klaus Ries-Mueller
发明人： Peter-Jurgen Schmidt , Manfred Mezger , Walter Gollin , Arnd-Matthias Langner , Klaus Ries-Mueller
摘要： A method is proposed for monitoring operations of an internal combustion engine to detect combustion misses for internal combustion engines having dual spark coils. A method is provided for the primary-side monitoring of the spark voltage and/or of the spark duration, and a method is provided for detecting irregular operations. If a faulty ignition is detected in one cylinder at one spark plug by monitoring the spark voltage and/or the spark duration, the second spark plug in this cylinder is then cut off (de-energized) and the reaction to this cut-off is monitored by means of the method for detecting irregular running. If the irregular running detection confirms faulty operation of the internal combustion engine, then the faulty ignition at the first spark plug of a cylinder was correctly recognized and appropriate emergency measures are introduced.
摘要翻译： PCT No.PCT / DE95 / 01406 Sec。 371日期：1996年6月20日 102（e）日期1996年6月20日PCT提交1995年10月13日PCT公布。 WO96 / 12887 PCT公开号 日期：1996年5月2日提出了一种用于监测内燃机的操作以检测具有双重火花线圈的内燃机的燃烧失误的方法。 提供了用于初始侧监视火花电压和/或火花持续时间的方法，并且提供了一种用于检测不规则操作的方法。 如果通过监测火花塞电压和/或火花持续时间在一个火花塞的一个气缸中检测到故障点火，则该气缸中的第二个火花塞然后被切断（断电），并且对该截止的反应是 通过检测不规则运行的方法进行监控。 如果不规则运行检测确认内燃机故障运行，则正确识别出汽缸第一火花塞故障点火，并引入适当的应急措施。
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