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1.发明授权Methods and apparatus to detect and inhibit low-speed pre-ignition in an engine 有权检测和抑制发动机低速预点火的方法和装置公开(公告)号：US08720416B2
公开(公告)日：2014-05-13
申请号：US13013502
申请日：2011-01-25
IPC分类号： F02P5/00
CPC分类号： F02P5/152 , F02D35/028 , F02D41/1456 , G01M15/11 , Y02T10/46
摘要： The disclosure provides a method of detecting and inhibiting an abnormal combustion event in an internal combustion engine, comprising operating the internal combustion engine to produce exhaust gas from the cylinder at a break mean effective pressure greater than or equal to 10 bars at a speed less than or equal to 2,000 revolutions per minute; monitoring the exhaust gas from the cylinder with an oxygen sensor while the internal combustion engine undergoes a pre-ignition combustion event; obtaining an output from the oxygen sensor, the output from the oxygen sensor providing an indicator of the pre-ignition combustion event; and adjusting at least one operating parameter of the internal combustion engine in response to the output of the oxygen sensor, wherein the at least one operating parameter is adjusted to inhibit an occurrence of a subsequent pre-ignition combustion event.
摘要翻译： 本公开提供了一种检测和抑制内燃机中的异常燃烧事件的方法，包括操作内燃机，以小于或等于10巴的中断平均有效压力从气缸产生废气，速度小于 或等于每分钟2000转; 在内燃机经历预燃燃烧事件时，用氧传感器监测来自气缸的废气; 从氧传感器获得输出，来自氧传感器的输出提供预点火燃烧事件的指示; 以及响应于所述氧传感器的输出来调节所述内燃机的至少一个操作参数，其中调节所述至少一个操作参数以抑制随后的预点燃燃烧事件的发生。
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2.发明申请Methods of detecting pre-ignition and preventing it from causing knock in direct injection spark ignition engines 审中-公开检测预点火并防止直接喷射火花点火发动机爆震的方法公开(公告)号：US20120029789A1
公开(公告)日：2012-02-02
申请号：US13135698
申请日：2011-07-12
CPC分类号： F02D35/023 , F02D35/027 , F02D37/02 , F02D41/405 , Y02T10/44
摘要： A method of preventing a pre-ignition event within a cylinder (20) of a spark ignition engine (100) involves taking in-cylinder measurements and using the measurements to determine the instantaneous heat being released within the cylinder (20) as a function crank angle. If significant heat is being released before the intended spark timing, additional fuel is injected into the cylinder (20) immediately following the detection of early heat release (pre-ignition) within the same engine cycle, preferably within 45 crank angle degrees following the detection of pre-ignition. The additional fuel quenches the heat released within the cylinder (20) to prevent a pre-ignition event.
摘要翻译： 一种防止火花点火发动机（100）的气缸（20）内的预先点火事件的方法包括进行气缸内测量并使用测量来确定作为功能曲柄的气缸（20）内释放的瞬时热量 角度。 如果在预期的火花正时之前释放出明显的热量，则在检测相同发动机循环中的早期放热（预点火）之后，最好在检测之后的45个曲柄角度内，立即将额外的燃料喷入气缸（20） 的预燃。 额外的燃料淬火在气缸（20）内释放的热量以防止预先点火事件。
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3.发明申请Method and related system of dithering spark timing to prevent pre-ignition in internal combustion engine 审中-公开用于防止内燃机预点火的抖动火花正时方法及相关系统公开(公告)号：US20110265761A1
公开(公告)日：2011-11-03
申请号：US12799753
申请日：2010-04-30
IPC分类号： F02P5/04
CPC分类号： F02P5/1522 , F02D35/027 , F02D41/008 , F02P5/04 , Y02T10/46
摘要： Methods of mitigating the occurrence of a low-speed pre-ignition event in a multi-cylinder internal combustion engine (10), the engine (10) having a computerized engine management control module (70) and an ignition timing module (66) controllable by the engine management control module (70). The computerized engine management module (70) monitors the operating conditions of the internal combustion engine (10) and at certain operating conditions dithers the ignition timing of at least one cylinder (20) of the engine (10) to induce light to medium SI engine knock temporarily. Due to the high temperature, high frequency pressure waves caused by SI engine knock, fuel and/or lubricant related deposits accumulated on combustion chamber components, i.e. top piston land crevices or piston crown, are consumed so that said deposits (60) cannot become a source of pre-ignition
摘要翻译： 减轻多缸内燃机（10）中低速预燃事件发生的方法，具有计算机化发动机管理控制模块（70）的发动机（10）和可控制的点火正时模块（66） 由发动机管理控制模块（70）。 计算机化的发动机管理模块（70）监视内燃机（10）的运行状况，并且在某些操作条件下，使发动机（10）的至少一个气缸（20）的点火正时激发以将光引导至中等SI发动机 暂时敲门 由于高温，消耗了由SI发动机爆震引起的高频压力波，积聚在燃烧室部件上的燃料和/或润滑剂相关沉积物，即顶部活塞地面缝隙或活塞冠，因此所述沉积物（60）不能变成 预燃源
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4.发明授权Method and related system of using crankcase pressure to to detect pre-ignition in spark ignition engine 有权使用曲轴箱压力来检测火花点火发动机的预点火的方法及相关系统公开(公告)号：US09080521B2
公开(公告)日：2015-07-14
申请号：US12660532
申请日：2010-03-01
CPC分类号： F02D37/02 , F02D41/021 , F02D41/1498 , F02D2250/11
摘要： Methods and a related system of preventing a pre-ignition event in a spark ignition engine. Unusual crankcase pressure fluctuations often occur prior to a Low-Speed Pre-Ignition (LSPI) event. A high speed high resolution pressure transducer (60) attached to the crankcase (30) of an engine (10) takes a plurality of engine crankcase pressure measurements and relays these measurements to an engine control module (70). The pressure measurements are analyzed to determine if unusual pressure fluctuations within the crankcase are occurring. If so, one or more engine control parameters are adjusted in order to mitigate a LSPI event. Various engine control parameters may be adjusted including fuel injection, engine load and combustion timing.
摘要翻译： 一种防止火花点火发动机中预先点火事故的方法和相关系统。 经常在低速预燃（LSPI）事件之前发生异常曲轴箱压力波动。 附接到发动机（10）的曲轴箱（30）的高速高分辨率压力传感器（60）采用多个发动机曲轴箱压力测量并将这些测量值中继到发动机控制模块（70）。 分析压力测量值，以确定曲轴箱内是否发生异常的压力波动。 如果是这样，则调整一个或多个引擎控制参数以减轻LSPI事件。 可以调节各种发动机控制参数，包括燃料喷射，发动机负载和燃烧正时。
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5.发明授权Quantification of lubricant reactivity using constant volume combustion device 有权使用恒定体积燃烧装置量化润滑剂反应性公开(公告)号：US08026105B1
公开(公告)日：2011-09-27
申请号：US12755190
申请日：2010-04-06
CPC分类号： G01N33/2817 , G01N33/2888
摘要： A method for identifying a lubricant composition that reduces the propensity for knock in an engine. The lubricant composition is mixed with a solvent to reduce the viscosity of the lubricant composition, thereby forming a lubricant-solvent mixture having a viscosity similar to or less than that of engine fuel. A sample of a lubricant-solvent mixture is then subjected to a constant volume combustion test to determine the reactivity associated with the lubricant-solvent mixture. The test is repeated for a range of lubricant-solvent ratios, and statistical methods are used to calculate the reactivity of the lubricant composition without solvent.
摘要翻译： 用于识别降低发动机爆震倾向的润滑剂组合物的方法。 将润滑剂组合物与溶剂混合以降低润滑剂组合物的粘度，从而形成粘度与发动机燃料的粘度相似或更小的润滑剂 - 溶剂混合物。 然后将润滑剂 - 溶剂混合物的样品进行恒定体积的燃烧测试以确定与润滑剂 - 溶剂混合物相关的反应性。 对于一系列润滑剂 - 溶剂比例，重复试验，并使用统计学方法计算不含溶剂的润滑剂组合物的反应性。
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公开(公告)号：US08327687B2
公开(公告)日：2012-12-11
申请号：US12689553
申请日：2010-01-19
IPC分类号： G01L23/22
CPC分类号： G01L23/225 , F02D41/0025 , F02P5/152 , Y02T10/46
摘要： The present invention relates to methods and apparatus for the evaluation of non-fuel components within a selected fuel with respect to engine knock performance. A non-fuel component such as a lubricant oil is now evaluated to determine onset of engine knock relative to baseline oil formulations that indicate relative low reactivity and optimum engine performance and those engine oils that exhibit relatively high reactivity and sub-optimum engine performance.
摘要翻译： 本发明涉及用于评估相对于发动机爆震性能的选定燃料内的非燃料成分的方法和装置。 现在评估诸如润滑油的非燃料组分以确定相对于基线油配方的发动机爆震的发生，其指示相对低的反应性和最佳的发动机性能以及表现出相对较高的反应性和次优的发动机性能的发动机油。
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7.发明申请Method and related system of using crankcase pressure to to detect pre-ignition in spark ignition engine 有权使用曲轴箱压力来检测火花点火发动机的预点火的方法及相关系统公开(公告)号：US20110213538A1
公开(公告)日：2011-09-01
申请号：US12660532
申请日：2010-03-01
IPC分类号： F02D43/00
CPC分类号： F02D37/02 , F02D41/021 , F02D41/1498 , F02D2250/11
摘要： Methods and a related system of preventing a pre-ignition event in a spark ignition engine. Unusual crankcase pressure fluctuations often occur prior to a Low-Speed Pre-Ignition (LSPI) event. A high speed high resolution pressure transducer (60) attached to the crankcase (30) of an engine (10) takes a plurality of engine crankcase pressure measurements and relays these measurements to an engine control module (70). The pressure measurements are analyzed to determine if unusual pressure fluctuations within the crankcase are occurring. If so, one or more engine control parameters are adjusted in order to mitigate a LSPI event. Various engine control parameters may be adjusted including fuel injection, engine load and combustion timing.
摘要翻译： 一种防止火花点火发动机中预先点火事故的方法和相关系统。 经常在低速预燃（LSPI）事件之前发生异常曲轴箱压力波动。 附接到发动机（10）的曲轴箱（30）的高速高分辨率压力传感器（60）采用多个发动机曲轴箱压力测量并将这些测量值中继到发动机控制模块（70）。 分析压力测量值，以确定曲轴箱内是否发生异常的压力波动。 如果是这样，则调整一个或多个引擎控制参数以减轻LSPI事件。 可以调节各种发动机控制参数，包括燃料喷射，发动机负载和燃烧正时。
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8.发明申请Ignition and Knock Tolerance in Internal Combustion Engine by Controlling EGR Composition 有权通过控制EGR组分对内燃机的点火和耐压公开(公告)号：US20140196702A1
公开(公告)日：2014-07-17
申请号：US13742627
申请日：2013-01-16
IPC分类号： F02B47/08
CPC分类号： F02D41/0065 , F02D19/0671 , F02D19/081 , F02D35/02 , F02D37/02 , F02D41/0025 , F02D41/0052 , F02D2200/1015 , F02M26/04 , F02M26/15 , F02M26/35 , F02M26/36 , F02M26/43 , F02M26/46 , F02P5/045 , Y02T10/36 , Y02T10/47
摘要： A method for improving ignition of a spark ignited internal combustion engine by controlling the composition of recirculated exhaust gas. It is assumed that the engine has a spark ignition system and an exhaust gas recirculation (EGR) loop such that at least one of the combustion cylinders is an EGR cylinder that generates an EGR stream carried by the EGR loop. Thus, the combustion charge is a mixture of air, fuel and recirculated exhaust. A first step is receiving combustibility data representing the current ignitability of the charge. It is then determined whether the energy of the ignition system is sufficient to ignite the charge. If not, the amount of hydrogen in the EGR stream is increased, which increases the ignitability of the charge.
摘要翻译： 一种通过控制再循环废气的组成来改善火花点火内燃机点火的方法。 假设发动机具有火花点火系统和排气再循环（EGR）回路，使得至少一个燃烧气缸是产生由EGR回路承载的EGR流的EGR气缸。 因此，燃烧装料是空气，燃料和再循环排气的混合物。 第一步是接收表示电荷的当前可燃性的可燃性数据。 然后确定点火系统的能量是否足以点燃电荷。 如果不是，则EGR流中的氢的量增加，这增加了电荷的可点燃性。
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9.发明申请公开(公告)号：US20140069082A1
公开(公告)日：2014-03-13
申请号：US13614966
申请日：2012-09-13
CPC分类号： F02B47/08 , F02M26/43 , Y02T10/121
摘要： A method and system for controlling recirculated exhaust gas composition and quantity provided to an internal combustion engine, which has one or more separately controllable combustion cylinders, a main exhaust line and an exhaust gas recirculation (EGR) loop. A first exhaust valve is connected to the main exhaust line, and a second exhaust valve is connected to the EGR loop. The operation of the exhaust valves is controlled such that exhaust does not flow through both exhaust valves at the same time. Control of the exhaust valves is coordinated with the main fueling event used to control the exhaust composition exiting each valve for every cylinder on every cycle. During each engine cycle, a post-combustion fuel injection event is also used to add fuel to the exhaust in-cylinder, which flows only through the second (EGR) exhaust valve.
摘要翻译： 用于控制提供给具有一个或多个可单独控制的燃烧气缸，主排气管线和排气再循环（EGR）循环的内燃机的再循环废气组成和量的方法和系统。 第一排气阀连接到主排气管，并且第二排气阀连接到EGR回路。 控制排气阀的操作使得排气不会同时流过两个排气门。 排气阀的控制与用于控制每个循环中每个气缸排出组合物的排气组成的主要燃料事件协调。 在每个发动机循环期间，还使用后燃料燃料喷射事件来向仅流过第二（EGR）排气阀的缸内排气添加燃料。
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10.发明授权Measurement of CN emissions from engine spark igniter for characterization of spark igniter energy 有权用于表征火花点火器能量的发动机火花点火器的CN排放的测量公开(公告)号：US07528607B2
公开(公告)日：2009-05-05
申请号：US11354362
申请日：2006-02-15
IPC分类号： F02P17/00
CPC分类号： F02P17/12 , F02D35/022 , F02D41/1451 , H01T13/58
摘要： A method and system for measuring the amount of energy released by a spark ignition system. This energy can be quantified spectroscopically by measuring the emission of cyanogen radicals in the presence of a ignition event and a known A/F ratio.
摘要翻译： 一种用于测量火花点火系统释放的能量的方法和系统。 可以通过在点燃事件和已知A / F比的存在下测量氰基的发射来光谱地量化该能量。
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