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公开(公告)号：US07480557B2
公开(公告)日：2009-01-20
申请号：US11976659
申请日：2007-10-26
CPC分类号： F02D35/023 , F02D35/028 , F02D41/005 , F02D41/008 , F02D41/403 , F02D2041/0067 , F02D2200/0612 , Y02T10/44 , Y02T10/47
摘要： A control system for an internal combustion engine having fuel injectors for injecting fuel into a combustion chamber of the engine. A fuel property is estimated based on a combustion state of the fuel injected into at least one cylinder of the engine. The fuel injectors are controlled so that a specific amount of fuel is injected into the at least one cylinder and an amount of fuel corresponding to an operating condition of the engine is injected into cylinders other than the at least one cylinder. An additional fuel injection is performed after the fuel injection of the specific amount with respect to the at least one cylinder, for example, when a torque difference parameter indicative of a difference between a torque generated by the at least one cylinder and a torque generated by the other cylinders is equal to or greater than a predetermined threshold value.
摘要翻译： 一种用于内燃机的控制系统，其具有用于将燃料喷射到发动机的燃烧室中的燃料喷射器。 基于喷射到发动机的至少一个气缸中的燃料的燃烧状态来估计燃料特性。 控制燃料喷射器，使得特定量的燃料被喷射到至少一个气缸中，并且与发动机的运行状态相对应的燃料量被喷射到除了至少一个气缸之外的气缸中。 例如，当指示由至少一个气缸产生的转矩与由至少一个气缸产生的转矩之间的差异的转矩差参数与由至少一个气缸产生的转矩之间的差异时，在相对于至少一个气缸的燃料喷射特定量之后执行额外的燃料喷射， 其他气缸等于或大于预定阈值。
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公开(公告)号：US07258106B2
公开(公告)日：2007-08-21
申请号：US11484754
申请日：2006-07-12
CPC分类号： F02D41/401 , F02D35/023 , F02D41/005 , F02D41/2451 , Y02T10/44 , Y02T10/47
摘要： A control system for an internal combustion engine having fuel injection valves provided in a combustion chamber and an exhaust gas recirculation mechanism. Target maximum cylinder pressure change rates are set according to the operating condition of the engine. The maximum change rate of the detected cylinder pressure and a fuel injection timing correction amount are calculated wherein a difference between the calculated maximum change rate and the target maximum cylinder pressure change rate decreases. The fuel injection timing is corrected with the fuel injection timing correction amount. The recirculation amount of exhaust gases is controlled using the calculated control value. A correction amount of the exhaust gas recirculation amount is calculated when the fuel injection timing correction amount exceeds a predetermined amount. The exhaust gas recirculation amount is controlled using the control value corrected with the correction amount of the exhaust gas recirculating amount.
摘要翻译： 一种用于内燃机的控制系统，其具有设置在燃烧室中的燃料喷射阀和排气再循环机构。 目标最大气缸压力变化率根据发动机的运行状况设定。 计算检测到的气缸压力和燃料喷射正时校正量的最大变化率，其中计算的最大变化率和目标最大气缸压力变化率之间的差减小。 利用燃料喷射正时校正量校正燃料喷射正时。 使用计算出的控制值来控制废气的再循环量。 当燃料喷射正时校正量超过预定量时，计算排气再循环量的校正量。 使用利用废气再循环量的校正量校正的控制值来控制废气再循环量。
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公开(公告)号：US20070012289A1
公开(公告)日：2007-01-18
申请号：US11483648
申请日：2006-07-11
CPC分类号： F02D41/005 , F02D35/023 , F02D35/028 , F02D37/02 , F02D41/401 , F02D2200/0611 , F02D2200/0612 , Y02T10/47
摘要： A control system used with an engine determines a fuel injection timing according to a detected engine operating condition and fuel injection is executed through a fuel injection valve. The target ignition timings of the fuel are set according to the detected engine operating condition and stored in a memory. An ignition delay of the actual ignition timing relative to the target ignition timing and a cetane number of the fuel are calculated. Control values of the recirculation amount of exhaust gases are set according to the detected engine operating condition and stored in the memory. The stored control value is retrieved and the recirculation amount of exhaust gases is controlled using the retrieved control value. A correction amount of the recirculation amount of exhaust gases is calculated according to the estimated cetane number and the recirculation amount of exhaust gases is controlled using the corrected control value.
摘要翻译： 与发动机一起使用的控制系统根据检测到的发动机工作状态来确定燃料喷射正时，并且通过燃料喷射阀执行燃料喷射。 根据检测到的发动机运转状况来设定燃料的目标点火正时，并存储在存储器中。 计算出实际点火正时相对于目标点火正时和燃料十六烷值的点火延迟。 废气再循环量的控制值根据检测到的发动机工作条件设定并存储在存储器中。 检索存储的控制值，并使用检索到的控制值来控制废气的再循环量。 根据估计的十六烷值计算废气的再循环量的校正量，并且使用校正的控制值来控制废气的再循环量。
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公开(公告)号：US20080120013A1
公开(公告)日：2008-05-22
申请号：US11976659
申请日：2007-10-26
IPC分类号： F02D41/30
CPC分类号： F02D35/023 , F02D35/028 , F02D41/005 , F02D41/008 , F02D41/403 , F02D2041/0067 , F02D2200/0612 , Y02T10/44 , Y02T10/47
摘要： A control system for an internal combustion engine having fuel injectors for injecting fuel into a combustion chamber of the engine. A fuel property is estimated based on a combustion state of the fuel injected into at least one cylinder of the engine. The fuel injectors are controlled so that a specific amount of fuel is injected into the at least one cylinder and an amount of fuel corresponding to an operating condition of the engine is injected into cylinders other than the at least one cylinder. An additional fuel injection is performed after the fuel injection of the specific amount with respect to the at least one cylinder, for example, when a torque difference parameter indicative of a difference between a torque generated by the at least one cylinder and a torque generated by the other cylinders is equal to or greater than a predetermined threshold value.
摘要翻译： 一种用于内燃机的控制系统，其具有用于将燃料喷射到发动机的燃烧室中的燃料喷射器。 基于喷射到发动机的至少一个气缸中的燃料的燃烧状态来估计燃料特性。 控制燃料喷射器，使得特定量的燃料被喷射到至少一个气缸中，并且与发动机的运行状态相对应的燃料量被喷射到除了至少一个气缸之外的气缸中。 例如，当指示由至少一个气缸产生的转矩与由至少一个气缸产生的转矩之间的差异的转矩差参数与由至少一个气缸产生的转矩之间的差异时，在相对于至少一个气缸的燃料喷射特定量之后执行额外的燃料喷射， 其他气缸等于或大于预定阈值。
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公开(公告)号：US20080262699A1
公开(公告)日：2008-10-23
申请号：US11898275
申请日：2007-09-11
IPC分类号： F02D41/00
CPC分类号： F02D41/0025 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D41/0055 , F02D41/2416 , F02D41/403 , F02D2200/0612 , F02M26/06 , F02M26/07 , F02M26/15 , F02M26/35 , F02M26/48 , Y02T10/36 , Y02T10/47
摘要： A control system for an internal combustion engine, which is capable of estimating a property of fuel accurately even when the engine is in an operating condition other than idling. An in-cylinder pressure sensor detects an amount of change in pressure in a cylinder #1 of the engine as a pressure change amount. An ECU calculates an amount of heat released in the cylinder #1 as a heat release amount, according to the pressure change amount. A vehicle speed sensor, a crank angle sensor, and an accelerator pedal opening sensor detect load on the engine. The ECU estimates a cetane number of fuel based on the calculated heat release amount and the detected load on the engine.
摘要翻译： 一种用于内燃机的控制系统，其即使在发动机处于除空转之外的操作条件下也能够精确地估计燃料的性质。 缸内压力传感器检测发动机的气缸＃1中的压力变化量作为压力变化量。 ECU根据压力变化量计算汽缸＃1中的排出量作为放热量。 车速传感器，曲柄角传感器和加速器踏板开度传感器检测发动机上的负载。 ECU根据计算出的放热量和发动机检测到的负载来估计燃料的十六烷值。
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公开(公告)号：US07401591B2
公开(公告)日：2008-07-22
申请号：US11591593
申请日：2006-11-02
CPC分类号： F02D41/401 , F02B3/06 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D19/0689 , F02D35/021 , F02D35/023 , F02D41/0025 , F02D41/1498 , F02D41/3035 , F02D41/403 , F02D2200/0612 , F02D2200/1015 , Y02T10/128 , Y02T10/36 , Y02T10/44
摘要： A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine and burning the injected fuel by compression ignition. A fuel injection control parameter for controlling at least one fuel injection valve is changed. A combustion state of the engine is then detected. A cetane number of the fuel is then estimated based on the changed fuel injection control parameter and the detected combustion state.
摘要翻译： 一种用于内燃机的控制系统，其具有至少一个燃料喷射阀，用于将燃料喷射到发动机的燃烧室中并通过压缩点火燃烧喷射的燃料。 用于控制至少一个燃料喷射阀的燃料喷射控制参数改变。 然后检测发动机的燃烧状态。 然后基于改变的燃料喷射控制参数和检测到的燃烧状态来估计燃料的十六烷值。
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公开(公告)号：US20080051978A1
公开(公告)日：2008-02-28
申请号：US11892698
申请日：2007-08-27
IPC分类号： F02D28/00
CPC分类号： F02D41/0025 , F02D19/0628 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D35/028 , F02D41/0055 , F02D2200/0612 , F02M26/07 , F02M26/15 , F02M26/48 , Y02T10/36
摘要： A control system for an internal combustion engine, which makes it possible to estimate a fuel property parameter indicative of a property of fuel in use, in a plurality of operation modes of the engine, respectively, to thereby increase the chances of estimation of the fuel property parameter, and select an appropriate one from the estimated fuel property parameters to thereby more appropriately control the engine. The fuel property parameter is estimated when the detected operating conditions of the engine correspond to any of a plurality of operation modes. Depending on a plurality of fuel property parameters estimated in respective operation modes, one of the fuel property parameters is determined as the fuel property parameter for control of the engine.
摘要翻译： 一种用于内燃机的控制系统，其能够分别在发动机的多个操作模式中估计表示使用中的燃料的性质的燃料特性参数，从而增加燃料估计的机会 属性参数，并根据估计的燃料特性参数选择合适的参数，从而更适当地控制发动机。 当检测到的发动机的操作条件对应于多种操作模式中的任何一种时，估计燃料特性参数。 根据在各个操作模式中估计的多个燃料特性参数，确定燃料特性参数之一作为用于发动机控制的燃料特性参数。
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公开(公告)号：US07246596B2
公开(公告)日：2007-07-24
申请号：US11545672
申请日：2006-10-11
CPC分类号： F02D35/028 , F02B3/06 , F02B29/0406 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D35/025 , F02D41/0025 , F02D41/1497 , F02D41/402 , F02D2200/0612 , F02M26/05 , F02M26/48 , Y02T10/36 , Y02T10/44
摘要： A control system for an internal combustion engine that has at least one fuel injection valve for injecting fuel into a combustion chamber of the engine, and burns the injected fuel by compressing an air-fuel mixture in the combustion chamber. An operating condition of the engine and/or a refueling condition of a fuel tank for supplying fuel to the engine are/is detected. At least one operating parameter of the engine is changed when at least one of the engine operating condition and the refueling condition detected by the condition detecting means satisfies a predetermined condition in a predetermined low load operating condition of the engine. A cetane number of the fuel in use is estimated according to an ignition timing of the fuel detected after changing the at least one operating parameter of the engine.
摘要翻译： 一种用于内燃机的控制系统，其具有至少一个用于将燃料喷射到发动机的燃烧室中的燃料喷射阀，并且通过压缩燃烧室中的空气 - 燃料混合物来燃烧喷射的燃料。 检测发动机的运转状况和/或用于向发动机供给燃料的燃料箱的加油条件。 当发动机的预定的低负载运行条件下的条件检测装置检测到的发动机运转条件和加油条件中的至少一个满足预定条件时，改变发动机的至少一个运转参数。 根据在改变发动机的至少一个操作参数之后检测到的燃料的点火正时来估计使用的燃料的十六烷值。
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公开(公告)号：US20070151542A1
公开(公告)日：2007-07-05
申请号：US11591593
申请日：2006-11-02
CPC分类号： F02D41/401 , F02B3/06 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D19/0689 , F02D35/021 , F02D35/023 , F02D41/0025 , F02D41/1498 , F02D41/3035 , F02D41/403 , F02D2200/0612 , F02D2200/1015 , Y02T10/128 , Y02T10/36 , Y02T10/44
摘要： A control system for an internal combustion engine having at least one fuel injection valve for injecting fuel into a combustion chamber of the engine and burning the injected fuel by compression ignition. A fuel injection control parameter for controlling at least one fuel injection valve is changed. A combustion state of the engine is then detected. A cetane number of the fuel is then estimated based on the changed fuel injection control parameter and the detected combustion state.
摘要翻译： 一种用于内燃机的控制系统，其具有至少一个燃料喷射阀，用于将燃料喷射到发动机的燃烧室中并通过压缩点火燃烧喷射的燃料。 用于控制至少一个燃料喷射阀的燃料喷射控制参数改变。 然后检测发动机的燃烧状态。 然后基于改变的燃料喷射控制参数和检测到的燃烧状态来估计燃料的十六烷值。
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公开(公告)号：US20070084435A1
公开(公告)日：2007-04-19
申请号：US11545672
申请日：2006-10-11
CPC分类号： F02D35/028 , F02B3/06 , F02B29/0406 , F02D19/061 , F02D19/0636 , F02D19/0649 , F02D35/023 , F02D35/025 , F02D41/0025 , F02D41/1497 , F02D41/402 , F02D2200/0612 , F02M26/05 , F02M26/48 , Y02T10/36 , Y02T10/44
摘要： A control system for an internal combustion engine that has at least one fuel injection valve for injecting fuel into a combustion chamber of the engine, and burns the injected fuel by compressing an air-fuel mixture in the combustion chamber. An operating condition of the engine and/or a refueling condition of a fuel tank for supplying fuel to the engine are/is detected. At least one operating parameter of the engine is changed when at least one of the engine operating condition and the refueling condition detected by the condition detecting means satisfies a predetermined condition in a predetermined low load operating condition of the engine. A cetane number of the fuel in use is estimated according to an ignition timing of the fuel detected after changing the at least one operating parameter of the engine.
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