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公开(公告)号：US20070266696A1
公开(公告)日：2007-11-22
申请号：US11798869
申请日：2007-05-17
IPC分类号： F01N3/00
CPC分类号： F01N1/02
摘要： In a fuel cut period, an adsorbed CO quantity calculation section calculates the amount CATco of CO adsorbed on a catalyst, and an exhaust O2 quantity calculation section calculates the amount GASo2 of O2 in exhaust gases. CO oxidation reaction heat ΔHr produced when the calculated amount CATco of absorbed CO reacts with the calculated amount GASo2 of O2 in the exhaust gases is calculated by a ΔHr calculation section, and used in estimation of the temperature of the catalyst.
摘要翻译： 在燃料切断期间，吸附的CO量计算部分计算吸附在催化剂上的CO的COCO量，排气O 2量计算部分计算GASo 2的量GASo < 的废气中的O 2。 当所计算的吸收的CO的COCO量与排气中的O 2的计算量GASo 2 <2>反应时产生的CO氧化反应热ΔH 由DeltaH计算部分计算，并用于估计催化剂的温度。
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公开(公告)号：US07854113B2
公开(公告)日：2010-12-21
申请号：US11798869
申请日：2007-05-17
CPC分类号： F01N1/02
摘要： In a fuel cut period, an adsorbed CO quantity calculation section calculates the amount CATco of CO adsorbed on a catalyst, and an exhaust O2 quantity calculation section calculates the amount GASo2 of O2 in exhaust gases. CO oxidation reaction heat ΔHr produced when the calculated amount CATco of adsorbed CO reacts with the calculated amount GASo2 of O2 in the exhaust gases is calculated by a ΔHr calculation section, and used in estimation of the temperature of the catalyst.
摘要翻译： 在燃料切断期间，吸附CO量计算部计算吸附在催化剂上的CO的COCO量，排气O 2量计算部计算排气中的O 2的量GASo 2。 当计算吸附CO的COCO量与排气中O2的计算量GASo2反应时，产生的CO氧化反应热＆Dgr; Hr由＆Dgr。Hr计算部分计算，用于估计催化剂的温度。
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公开(公告)号：US20080245056A1
公开(公告)日：2008-10-09
申请号：US12053349
申请日：2008-03-21
申请人： Koji KAWAKITA , Katsunori Ueda , Toshiyuki Miyata
发明人： Koji KAWAKITA , Katsunori Ueda , Toshiyuki Miyata
CPC分类号： F02D41/126 , F01N11/002 , F01N2560/025 , F02D41/0295 , F02D41/1441 , F02D41/18 , F02D2200/0814
摘要： A system operable to control an exhaust gas omission of an engine, includes a catalytic converter; a fuel cutter, a change executor, a correlation value provider, an adjuster, and a controller. The change executor is operable to execute changing of an air-fuel ratio of the engine to a rich after the fuel supply is once stopped by the fuel cutter and then resumed. The correlation value provider is operable to provide a correlation value correlated to a change amount of the air-fuel ratio caused by the change executor based on a driving condition of the engine. The adjuster is operable to adjust the correlation value based on a parameter indicative of a capability of the catalytic converter. The controller is operable to cause the change executor to execute the changing based on the adjusted correlation value.
摘要翻译： 一种用于控制发动机废气排放的系统，包括催化转化器; 燃料切割器，变更执行器，相关值提供器，调节器和控制器。 改变执行器可操作以在燃料切割器一旦停止燃料供应之后执行发动机的空燃比的变化，然后恢复。 相关值提供器可操作以基于发动机的驾驶状况来提供与由变更执行器引起的空燃比的变化量相关的相关值。 调节器可操作以基于指示催化转化器的能力的参数来调整相关值。 控制器可操作以使变更执行器基于经调整的相关值来执行变化。
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公开(公告)号：US07136739B2
公开(公告)日：2006-11-14
申请号：US11102680
申请日：2005-04-11
CPC分类号： F02D41/1497 , F02D37/02 , F02D41/0255 , F02D2041/228 , F02D2200/1015 , G01M15/11
摘要： An engine control device for detecting misfire of an engine. Based on a detected crank angle of the engine, an angular velocity at a first crank angle at which the engine speed is close to a minimum within one combustion cycle of each cylinder is calculated as a pre-combustion angular velocity, and an angular velocity at a second crank angle at which the engine speed is close to a maximum within the same combustion cycle is calculated as a post-combustion angular velocity. An amount of rotation variation caused between the first and second crank angles is calculated based on the pre-combustion and post-combustion angular velocities of the same combustion cycle, and is compared with a predetermined misfire criterion to determine whether or not misfire has occurred. When misfire is detected, a required operation is performed, for example, a warning lamp is turned on or the fuel supply quantity is increased.
摘要翻译： 一种用于检测发动机失火的发动机控制装置。 基于发动机的检测到的曲柄角，计算在每个气缸的一个燃烧循环内发动机转速接近最小值的第一曲柄角处的角速度作为预燃角速度和 在相同的燃烧循环中发动机转速接近最大值的第二曲柄角被计算为后燃烧角速度。 基于相同燃烧循环的燃烧前燃烧角和后燃烧角速度来计算在第一和第二曲柄角之间产生的旋转变化量，并与预定的失火准则进行比较，以确定是否发生失火。 当检测到失火时，执行所需的操作，例如警告灯打开或燃料供应量增加。
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公开(公告)号：US07987838B2
公开(公告)日：2011-08-02
申请号：US12370681
申请日：2009-02-13
CPC分类号： F02D41/0025 , F02D19/084 , F02D19/088 , F02D41/0032 , F02D41/0042 , F02D2200/0612 , F02M25/0827 , Y02T10/36
摘要： A controller of an internal combustion engine includes: a purge controller, operable to control a purge amount of the vaporized fuel purged to an air intake system; an exhaust air-fuel ratio detector; an air-fuel ratio feedback controller; a period determiner, operable to determine whether it is an estimation enabling period; and an alcohol concentration estimator, operable to estimate the alcohol concentration. When the purge of the vaporized fuel is cut during the estimation enabling period, the purge controller: performs control so that the purge is cut with a large degree of tailing, in an operation region where a load of the internal combustion engine is high and a rotation speed is high; and performs control so that the purge is cut with a smaller degree of tailing than the large degree of tailing, in an operation region where the load of the internal combustion engine is low and the rotation speed is low.
摘要翻译： 内燃机的控制器包括：净化控制器，其可操作以控制吹扫到进气系统的汽化燃料的净化量; 排气空燃比检测器; 空燃比反馈控制器; 周期确定器，可操作以确定其是否是估计使能期; 以及可用于估计酒精浓度的酒精浓度估计器。 当在估计使能期间对蒸发燃料的吹扫被切断时，净化控制器进行控制，使得在内燃机的负荷高的操作区域中以大的拖尾程度切断吹扫， 转速高; 并且进行控制，使得在内燃机的负荷低且转速低的操作区域中，以较大的拖尾度较小的拖尾程度切断吹扫。
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公开(公告)号：US07827960B2
公开(公告)日：2010-11-09
申请号：US12370053
申请日：2009-02-12
IPC分类号： F02P5/15
CPC分类号： F02D41/0025 , F02D19/061 , F02D19/084 , F02D19/088 , F02D37/02 , F02D41/0002 , F02D41/1454 , F02D41/18 , F02D2041/2048 , F02D2200/0611 , F02D2200/602 , Y02T10/36
摘要： A controller of an engine that can use a blended fuel with alcohol blended therein, the controller includes: an ignition timing controller, operable to control an ignition timing of the engine; an exhaust air-fuel ratio detector, operable to detect an exhaust air-fuel ratio of the engine; a concentration detector, operable to detect concentration of the alcohol in the blended fuel; an operation state detector, operable to detect an operation state of the engine; and a corrector, when the operation state which is detected by the operation state detector is a high-speed, high-load operation state, as the concentration of the alcohol which is detected by the concentration detector is higher, operable to control an injection amount which is injected from a fuel injection valve to correct a target equivalence ratio more in a lean direction, and operable to correct the ignition timing which is controlled by the ignition timing controller more to a spark advance side.
摘要翻译： 发动机的控制器，其可以混合使用与其混合的混合燃料，所述控制器包括：点火正时控制器，其可操作以控制所述发动机的点火正时; 排气空燃比检测器，其可操作以检测发动机的排气空燃比; 浓度检测器，可操作以检测混合燃料中的醇的浓度; 操作状态检测器，用于检测发动机的运行状态; 以及校正器，当由所述操作状态检测器检测到的操作状态是高速，高负载操作状态时，随着由浓度检测器检测到的酒精的浓度较高，可操作地控制喷射量 其从燃料喷射阀喷射以在稀薄方向上更正目标当量比，并且可操作以将由点火正时控制器控制的点火正时更新到火花提前侧。
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公开(公告)号：US07739025B2
公开(公告)日：2010-06-15
申请号：US12343257
申请日：2008-12-23
CPC分类号： F02D41/0025 , F02D19/0628 , F02D19/084 , F02D19/088 , F02D41/0042 , F02D41/2448 , F02D41/2454 , F02D2200/0612 , Y02T10/36
摘要： An estimation apparatus includes: a learning prohibition unit, configured to prohibit a learning unit from executing a learning control and retain a learning value, which is set just before prohibiting, as a fixed learning value which is a fixed value, when the fuel component amount estimation condition is satisfied; an air-fuel ratio correction amount computation unit, configured to compute a correction amount of the air-fuel ratio based on the feedback correction value and the fixed learning value, when the fuel component amount estimation condition is satisfied; an injection correction value change rate computation unit, configured to compute a change rate of the correction amount; an alcohol component correction value computation unit, configured to compute an alcohol component correction value based on the change rate; and an alcohol component amount estimation unit, configured to estimate an alcohol component amount in fuel based on the alcohol component correction value.
摘要翻译： 一种估计装置，包括：学习禁止单元，其被配置为当所述学习禁止单元执行学习控制并且将刚刚设置的禁止之前设定的学习值作为固定学习值作为固定值时， 估计条件满足; 空燃比校正量计算单元，被配置为当满足所述燃料成分量估计条件时，基于所述反馈校正值和所述固定学习值来计算所述空燃比的校正量; 喷射校正值变化率计算单元，被配置为计算校正量的变化率; 醇组分校正值计算单元，被配置为基于所述变化率计算酒精分量校正值; 以及醇成分量估计单元，其被配置为基于所述醇成分校正值来估计燃料中的醇成分量。
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公开(公告)号：US20090248274A1
公开(公告)日：2009-10-01
申请号：US12361846
申请日：2009-01-29
CPC分类号： F02D41/047 , F02D19/084 , F02D19/087 , F02D41/0025 , F02D41/107 , F02D41/182 , F02D2200/0611 , F02D2200/0616 , Y02T10/36
摘要： A fuel injection controller for an engine that injects fuel to an inlet passage in an upstream side of an inlet valve from a fuel injection unit, includes: a first calculator, configured to calculate a basic fuel injection quantity from the fuel injection unit based on an operating condition of the engine; a second calculator, configured to calculate a first direct transport rate of fuel directly transported into a cylinder of the fuel injected from the fuel injection unit when the inlet valve is closed; a third calculator, configured to calculate a second direct transport rate of fuel directly transported into a cylinder of the fuel injected from the fuel injection unit when the inlet valve is opened; and a corrector, configured to correct the basic fuel injection quantity based on the first direct transport rate and the second direct transport rate.
摘要翻译： 一种用于从燃料喷射单元向入口阀的上游侧的入口通道喷射燃料的发动机的燃料喷射控制器，包括：第一计算器，被配置为基于燃料喷射单元计算来自所述燃料喷射单元的基本燃料喷射量 发动机运行状态; 第二计算器，被配置为当所述入口阀关闭时，计算直接输送到从所述燃料喷射单元喷射的燃料的气缸中的燃料的第一直接输送速率; 第三计算器，被配置为当所述入口阀打开时，计算直接输送到从所述燃料喷射单元喷射的燃料的气缸中的燃料的第二直接输送速率; 以及校正器，被配置为基于所述第一直接传送速率和所述第二直接传送速率来校正所述基本燃料喷射量。
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公开(公告)号：US07367322B2
公开(公告)日：2008-05-06
申请号：US11502478
申请日：2006-08-11
申请人： Toshiyuki Miyata , Katsunori Ueda , Koji Kawakita
发明人： Toshiyuki Miyata , Katsunori Ueda , Koji Kawakita
CPC分类号： F02D41/126 , F01N3/0814 , F01N3/0828 , F01N3/2006 , F01N11/007 , F01N2900/0422 , F02D37/02 , F02D41/0295 , F02D2200/0814 , Y02T10/26 , Y02T10/47
摘要： When the first fuel injection is performed after reversion from the fuel cut, the fuel pulse width Ka·INJ.PW is set so that a fuel supply amount is greatly increased in relation to an intake air amount, and the ignition timing is set to the first retarded ignition timing θa. When the second and subsequent fuel injections are performed, the fuel pulse width Kb·INJ.PW that is smaller in increase width of fuel is set, and the ignition timing is set to the second retarded ignition timing θb that has a retardation amount smaller than that of the first retarded ignition timing θa.
摘要翻译： 当从燃料切断返回后执行第一燃料喷射时，燃料脉冲宽度Ka.INJ.PW被设定为使得燃料供给量相对于进气量大大增加，点火正时设定为 第一次延迟点火正时θa。 当执行第二次和随后的燃料喷射时，设定燃料的增加宽度较小的燃料脉冲宽度Kb.INJ.PW，并且将点火正时设定为具有小于等于的燃料的延迟量的第二延迟点火正时 第一个延迟点火正时θa。
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公开(公告)号：US08374768B2
公开(公告)日：2013-02-12
申请号：US12345061
申请日：2008-12-29
CPC分类号： F02D41/0025 , F02D19/084 , F02D19/088 , F02D41/1454 , F02D2200/0611 , Y02T10/36
摘要： A controller of an internal combustion engine operable by an alcohol-containing fuel, includes: an alcohol concentration detecting unit, operable to detect an alcohol concentration of the alcohol-containing fuel; a feedback controller, operable to perform feedback control to make an exhaust air-fuel ratio of the internal combustion engine become equal to a target air-fuel ratio in accordance with an operation region; and an operation region setting unit, operable to set a stoichiometric operation region, in which the target air-fuel ratio is stoichiometric, in an enlarged manner when the alcohol concentration, detected by the alcohol concentration detecting unit, is higher than a concentration.
摘要翻译： 一种由含酒精的燃料可操作的内燃机的控制器包括：醇浓度检测单元，用于检测含醇燃料的醇浓度; 反馈控制器，其可操作以执行反馈控制，以使内燃机的排气空燃比根据操作区域变为等于目标空燃比; 以及操作区域设定单元，其能够在由酒精浓度检测单元检测出的醇浓度高于浓度时，以放大的方式设定目标空燃比为化学计量的化学计量运算区域。
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