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公开(公告)号：US06289673B1
公开(公告)日：2001-09-18
申请号：US09418255
申请日：1999-10-15
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D41/1475 , F02D41/187 , F02D2200/0814 , F02D2200/0816
摘要： A catalyst in an exhaust passage for an engine is capable of storing oxygen. A memory stores, as an oxygen storage capacity, an oxygen storage amount at the time of change of the downstream air-fuel ratio on the downstream side of the catalyst from stoichiometric to lean. A processor calculates the current oxygen storage amount accurately in due consideration of a fast oxygen absorbing rate in the case of the downstream air-fuel ratio being stoichiometric, and a slow oxygen absorbing rate in the case of the downstream air-fuel ratio being lean, and controls the air-fuel ratio of the exhaust gas mixture flowing into the catalyst so as to bring the oxygen storage amount in a region under the oxygen storage capacity.
摘要翻译： 用于发动机的排气通道中的催化剂能够储存氧气。 存储器将催化剂下游侧的下游空燃比从化学计量比变化为稀，存储作为储氧能力的氧储存量。 在下游空燃比为化学计量的情况下，处理器适当考虑到快速氧吸收速率，并且在下游空燃比为稀的情况下，缓慢的氧吸收速率，精确地计算出当前的氧气储存量， 并且控制流入催化剂的排气混合物的空燃比，以将氧气储存量保持在储氧能力以下的区域。
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公开(公告)号：US06497846B1
公开(公告)日：2002-12-24
申请号：US09370885
申请日：1999-08-10
IPC分类号： F01N300
CPC分类号： F01N3/0835 , B01D53/944 , B01D53/9495 , F01N3/0814 , F01N3/0871 , F01N3/2828 , F02B2075/125 , F02D41/0255 , F02D41/402 , F02D41/405 , F02D2041/389 , F02D2200/0802 , Y02T10/123 , Y02T10/26 , Y02T10/44
摘要： An exhaust gas purifying system for a cylinder direct internal combustion engine having a fuel injector valve for directly injecting fuel into a combustion chamber of the engine. The exhaust gas purifying system comprises an adsorbent catalytic converter disposed in an exhaust gas passageway of the engine. The adsorbent catalytic converter including a catalytic element having an adsorption layer. The adsorption layer contains an adsorbent for adsorbing HC (hydrocarbons) of exhaust gas in a first temperature range and to release the adsorbed HC in a second temperature range which is high relative to the first temperature range, and a catalyst component for promoting reaction for oxidizing HC which is released from the adsorbent. A control unit is provided to be programmed to carry out (a) judging that a temperature of the adsorption layer has reaches a releasing level relating to the second temperature range, so as to make a first judgment result; (b) judging that a temperature of exhaust gas flown into the adsorbent catalytic converter will rise upon injection of an additional fuel from the fuel injector valve into the combustion chamber during a time period including an expansion stroke and an exhaust stroke of the engine, so as to make a second judgment result; and (c) causing the fuel injector valve to controllably inject the additional fuel during the time period including the expansion stroke and the exhaust stroke of the engine upon making both the first and second judgment results.
摘要翻译： 一种用于汽缸直接内燃机的排气净化系统，其具有用于将燃料直接喷射到发动机的燃烧室中的燃料喷射阀。 排气净化系统包括设置在发动机的排气通道中的吸附催化转化器。 该吸附剂催化转化器包括具有吸附层的催化元件。 吸附层含有用于在第一温度范围内吸附废气的HC（烃）的吸附剂，并且在相对于第一温度范围高的第二温度范围内释放吸附的HC，以及用于促进氧化反应的催化剂组分 HC从吸附剂中释放出来。 提供控制单元进行编程以执行（a）判断吸附层的温度达到与第二温度范围有关的释放水平，以便作出第一判断结果; （b）判断在包括发动机的膨胀冲程和排气冲程在内的时间段期间，从燃料喷射阀向燃烧室喷射附加燃料时，判断流入吸附剂催化转化器的废气的温度升高，因此 作出第二判断结果; 以及（c）在进行第一和第二判断结果的同时，在包括发动机的膨胀冲程和排气冲程的时间段期间使燃料喷射阀可控制地喷射附加燃料。
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公开(公告)号：US08463532B2
公开(公告)日：2013-06-11
申请号：US13202350
申请日：2010-02-04
申请人： Shinji Nakagawa , Kazuhiko Kanetoshi , Kouzo Katougi , Takanobu Ichihara , Minoru Ohsuga , Hiroyuki Takamura
发明人： Shinji Nakagawa , Kazuhiko Kanetoshi , Kouzo Katougi , Takanobu Ichihara , Minoru Ohsuga , Hiroyuki Takamura
IPC分类号： F02D41/00
CPC分类号： F02D41/065 , F02D41/0295 , F02D41/1454 , F02D41/1475 , F02D2200/0814 , F02D2200/0816
摘要： Provided is a control device for an engine which is capable of purifying NOx with high efficiency at a restart after an idle stop without deteriorating purification efficiency of HC and CO. At the restart after the idle stop, an air-fuel ratio is controlled to be rich, and an atmosphere inside of a catalyst is estimated on the basis of a required time ΔT from a time point at which an output value (VO2—2) of first oxygen concentration detection means upstream of the catalyst exceeds a predetermined value A1 to a time point at which an output value (VO2—2) of second oxygen concentration detection means downstream of the catalyst exceeds a predetermined value A2, whereby an air-fuel ratio at next and subsequent restarts is corrected so that the atmosphere inside of the catalyst is optimized at the next and subsequent restarts.
摘要翻译： 提供一种用于发动机的控制装置，其能够在怠速停止之后重新启动时能够高效地净化NOx，而不会降低HC和CO的净化效率。在怠速停止后的重启时，将空燃比控制为 基于从催化剂上游的第一氧浓度检测装置的输出值（VO2-2）（VO2-2）超过规定值A1到a的时间点的所需时间DeltaT来估计催化剂内部的气氛 在催化剂下游的第二氧浓度检测装置的输出值（VO2-2）超过预定值A2的时间点，由此校正下一次和随后的重新启动时的空燃比，使得催化剂内部的气氛为 在下次重新启动和后续重新启动时优化。
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公开(公告)号：US08267076B2
公开(公告)日：2012-09-18
申请号：US12826367
申请日：2010-06-29
IPC分类号： F02D41/10
CPC分类号： F02D41/0085 , F02D37/02 , F02D41/1454 , F02D41/1497 , F02D2200/1012
摘要： The present invention performs correction appropriately according to errors in the fuel system and air system respectively and corrects both variations in the air-fuel ratio and torque. When the difference between a target air-fuel ratio and a real air-fuel ratio is equal to or below a predetermined value when feedback control based on the air-fuel ratio of an exhaust manifold 10A is in progress, the air-fuel ratio of a cylinder cyl—1 having the largest variation of angular acceleration is corrected to the rich side, for example, by increasing the amount of fuel. Angular acceleration per cylinder is then detected again and when the variation in angular acceleration among cylinders is not eliminated, it is judged that there is an error in the amount of air control of the cylinder having the largest variation and the amount of air, amount of fuel, ignition timing or the like are corrected.
摘要翻译： 本发明分别根据燃料系统和空气系统中的误差适当地进行校正，并且校正空燃比和扭矩的变化。 当在进行基于排气歧管10A的空燃比的反馈控制的情况下，当目标空燃比与实际空燃比之间的差等于或低于预定值时，空燃比 具有最大的角加速度变化的气缸cyl-1例如通过增加燃料量被校正到浓侧。 再次检测每缸的角加速度，当不消除气缸之间角加速度的变化时，判断为具有最大变化量和空气量的气缸的空气控制量存在误差， 燃料，点火正时等。
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公开(公告)号：US08150598B2
公开(公告)日：2012-04-03
申请号：US12470202
申请日：2009-05-21
IPC分类号： G06F19/00
CPC分类号： F02D37/02 , F02D35/023 , F02D41/064 , F02D41/1454 , F02D41/1497 , F02D2200/1012 , F02P5/103 , F02P5/1506 , Y02T10/46
摘要： An engine controller capable of optimizing both the air-fuel ratio and the ignition timing to provide HC-minimized performance under the relevant driving conditions (environmental conditions) in order to minimize the amount of HC emitted from an engine at the time of start-up (before catalyst activation) is provided. The engine controller includes: air-fuel ratio control means for controlling the air-fuel ratio to be within a predetermined range (for example, 14.5 to 16.5) when the engine is operated at a certain driving condition (for example, in a state in which the catalyst is not activated such as the time of starting a cooler, or idling time); and ignition timing correction means for correcting the ignition timing to the retard side when the engine is operated at the certain driving condition and the air-fuel ratio is within the predetermined range.
摘要翻译： 一种能够优化空燃比和点火正时两者的发动机控制器，以在相关驾驶条件（环境条件）下提供HC最小化的性能，以便在起动时最小化从发动机排出的HC的量 （催化剂活化之前）。 发动机控制器包括：空燃比控制装置，用于在发动机在某一行驶状态下操作时（例如，在一定的驾驶状态下）将空燃比控制在预定范围内（例如14.5至16.5） 催化剂未启动，例如启动冷却器的时间或空转时间）; 以及点火正时校正装置，用于当发动机在特定驾驶状态下操作并且空燃比在预定范围内时，将点火正时校正到延迟侧。
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公开(公告)号：US20110315108A1
公开(公告)日：2011-12-29
申请号：US13202350
申请日：2010-02-04
申请人： Shinji Nakagawa , Kazuhiko Kanetoshi , Kouzo Katougi , Takanobu Ichihara , Minoru Ohsuga , Hiroyuki Takamura
发明人： Shinji Nakagawa , Kazuhiko Kanetoshi , Kouzo Katougi , Takanobu Ichihara , Minoru Ohsuga , Hiroyuki Takamura
IPC分类号： F02N11/08
CPC分类号： F02D41/065 , F02D41/0295 , F02D41/1454 , F02D41/1475 , F02D2200/0814 , F02D2200/0816
摘要： Provided is a control device for an engine which is capable of purifying NOx with high efficiency at a restart after an idle stop without deteriorating purification efficiency of HC and CO. At the restart after the idle stop, an air-fuel ratio is controlled to be rich, and an atmosphere inside of a catalyst is estimated on the basis of a required time ΔT from a time point at which an output value (VO2—2) of first oxygen concentration detection means upstream of the catalyst exceeds a predetermined value A1 to a time point at which an output value (VO2—2) of second oxygen concentration detection means downstream of the catalyst exceeds a predetermined value A2, whereby an air-fuel ratio at next and subsequent restarts is corrected so that the atmosphere inside of the catalyst is optimized at the next and subsequent restarts.
摘要翻译： 提供一种用于发动机的控制装置，其能够在怠速停止之后重新启动时能够高效地净化NOx，而不会降低HC和CO的净化效率。在怠速停止后的重启时，将空燃比控制为 在催化剂上游的第一氧浓度检测装置的输出值（VO2-2）超过规定值A1的时刻，基于所需时间＆Dgr; T，估计催化剂内部的气氛， 到催化剂下游的第二氧浓度检测装置的输出值（VO2-2）超过预定值A2的时间点，由此校正下次再次启动时的空燃比，使得在 催化剂在下一次和随后的重新启动时被优化。
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公开(公告)号：US20110029218A1
公开(公告)日：2011-02-03
申请号：US12826367
申请日：2010-06-29
IPC分类号： F02D41/00
CPC分类号： F02D41/0085 , F02D37/02 , F02D41/1454 , F02D41/1497 , F02D2200/1012
摘要： The present invention performs correction appropriately according to errors in the fuel system and air system respectively and corrects both variations in the air-fuel ratio and torque. When the difference between a target air-fuel ratio and a real air-fuel ratio is equal to or below a predetermined value when feedback control based on the air-fuel ratio of an exhaust manifold 10A is in progress, the air-fuel ratio of a cylinder cyl_1 having the largest variation of angular acceleration is corrected to the rich side, for example, by increasing the amount of fuel. Angular acceleration per cylinder is then detected again and when the variation in angular acceleration among cylinders is not eliminated, it is judged that there is an error in the amount of air control of the cylinder having the largest variation and the amount of air, amount of fuel, ignition timing or the like are corrected.
摘要翻译： 本发明分别根据燃料系统和空气系统中的误差适当地进行校正，并且校正空燃比和扭矩的变化。 当在进行基于排气歧管10A的空燃比的反馈控制的情况下，当目标空燃比与实际空燃比之间的差等于或低于预定值时，空燃比 具有最大的角加速度变化的气缸cyl_1例如通过增加燃料量被校正到浓侧。 再次检测每缸的角加速度，当不消除气缸之间角加速度的变化时，判断为具有最大变化量和空气量的气缸的空气控制量存在误差， 燃料，点火正时等。
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公开(公告)号：US08033267B2
公开(公告)日：2011-10-11
申请号：US12339401
申请日：2008-12-19
IPC分类号： F02P5/10
CPC分类号： F02P5/1506 , F02P5/1508 , Y02T10/46
摘要： A control apparatus for an engine including a unit for retarding an ignition timing from an MBT by a predetermined value or more during cranking at engine starting or during a period from a first combustion up to an idling engine speed.
摘要翻译： 一种用于发动机的控制装置，包括用于在发动机起动期间或在从第一燃烧到怠速发动机转速的时段期间将起动时间从MBT延迟预定值以上的单元。
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公开(公告)号：US20110017179A1
公开(公告)日：2011-01-27
申请号：US12829080
申请日：2010-07-01
IPC分类号： F02B47/08
CPC分类号： F02D41/0072 , F02D41/28 , F02D2041/0075 , F02D2041/141 , F02D2041/1432 , F02M26/05 , F02M26/40 , F02M26/47 , Y02T10/47
摘要： An EGR flow rate control apparatus of an internal combustion engine is provided that can correct with high accuracy an EGR gas flow rate measured by a gas flow rate measurement apparatus in an EGR passage and control with high accuracy a gas flow rate regulating valve to reduce discharge amounts of PM and NOx in exhaust gases. An EGR flow rate control apparatus 10 of an internal combustion engine includes EGR flow channels 16, 20 that communicate exhaust pipe 11 with intake pipe 7, gas flow rate regulating valve 17 installed in EGR flow channels 26, 20 that regulates an EGR gas flow rate, and gas flow rate measurement apparatus 18 that is installed on an intake pipe 7 side with respect to the flow rate regulating valve 17 of EGR flow channels 16 and 20 and that measures an EGR gas flow rate flowing through the EGR flow channels 16 and 20. The EGR flow rate control apparatus 10 includes gas flow rate correction means 45 that corrects the EGR gas flow rate based on a first operating state parameter relating to pressure fluctuations of the intake pipe or exhaust pipe of the internal combustion engine and a second operating state parameter relating to a flow channel resistance of the EGR flow channel.
摘要翻译： 提供一种内燃机的EGR流量控制装置，其能够高精度地校正由EGR通路中的气体流量测量装置测量的EGR气体流量，并且以高精度控制气体流量调节阀以减少放电 废气中的PM和NOx的量。 内燃机的EGR流量控制装置10包括将排气管11与进气管7连通的EGR流路16,20，安装在EGR流路26,20中的气体流量调节阀17，其调节EGR气体流量 ，以及相对于EGR流路16,20的流量调节阀17安装在进气管7侧并测量流过EGR流路16,20的EGR气体流量的气体流量测量装置18 EGR流量控制装置10包括气体流量校正装置45，其根据与内燃机的进气管或排气管的压力波动相关的第一运转状态参数和第二运转状态来修正EGR气体流量 与EGR流路的流路阻力有关的参数。
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公开(公告)号：US07840334B2
公开(公告)日：2010-11-23
申请号：US11846722
申请日：2007-08-29
CPC分类号： F02D41/047 , F02D21/00 , F02D35/023 , F02D35/025 , F02D41/008 , F02D41/06 , F02D41/1497 , F02D41/34 , F02D2200/0614 , F02M26/00 , Y02T10/44
摘要： An engine control system for an internal combustion engine with a fuel injector, comprises a combustion fuel quantity computing means for computing a combustion fuel quantity in a combustion cycle; and a residual fuel quantity computing means for computing a residual fuel quantity in the combustion cycle based on a difference between an injection fuel quantity of the fuel injector and the combustion fuel quantity.
摘要翻译： 一种用于具有燃料喷射器的内燃机的发动机控制系统，包括用于计算燃烧循环中燃烧燃料量的燃烧燃料量计算装置; 以及剩余燃料量计算装置，用于基于燃料喷射器的喷射燃料量和燃烧燃料量之间的差来计算燃烧循环中的剩余燃料量。
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