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公开(公告)号：US20070175445A1
公开(公告)日：2007-08-02
申请号：US11698063
申请日：2007-01-26
IPC分类号： F02P5/00
CPC分类号： F02D41/3035 , F02B1/12 , F02B3/06 , F02B29/0406 , F02D35/028 , F02D41/1454 , F02D41/307 , F02D2250/21 , F02D2250/32 , F02M26/05 , F02M26/23
摘要： A compression ignition internal combustion engine includes injectors, each of which injects fuel into a corresponding cylinder. An ECU determines target ignition timing based on engine operational information and adjusts fuel injection start timing and a fuel injection quantity of each injector based on the target ignition timing. The engine further includes an air/fuel ratio sensor, which senses an oxygen concentration of exhaust gas. The ECU corrects the target ignition timing based on the oxygen concentration, which is sensed with the air/fuel ratio sensor, with reference to a predefined relationship between the oxygen concentration and ignition timing for achieving a generally equal constant torque of the engine.
摘要翻译： 压缩点火内燃机包括喷射器，每个喷射器将燃料喷射到相应的气缸中。 ECU根据发动机运转信息确定目标点火正时，并基于目标点火正时调整各喷射器的燃料喷射开始正时和燃料喷射量。 发动机还包括空气/燃料比传感器，其感测废气的氧气浓度。 参照氧气浓度和点火正时之间的预定关系，ECU基于用空气/燃料比传感器检测到的氧浓度校正目标点火正时，以实现发动机的大致相等的恒定转矩。
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公开(公告)号：US07254473B2
公开(公告)日：2007-08-07
申请号：US11605475
申请日：2006-11-29
IPC分类号： F02D41/26
CPC分类号： F02D41/401 , F01N3/021 , F02B37/00 , F02D35/023 , F02D35/028 , F02D41/008 , F02D41/3035 , Y02T10/44
摘要： An engine control apparatus for a multi-cylinder compression ignition internal combustion engine includes a combustion status sensor and a controller. The combustion status sensor is installed in a selected one of cylinders of the engine. The controller works to sample an output from the combustion status sensor to determine a combustion status parameter and determine injection timings so as to bring the combustion status parameter into agreement with a target value. The controller also corrects the injection timing for at least one of the cylinders in which the combustion status sensor is not installed so that a combustion status parameter of the at least one of the cylinders lies on an advanced side of that of the one of the cylinders in which the combustion status sensor is installed, thereby avoiding the deterioration of quality of combustion of the fuel arising from a shift of the time of the ignition in the retarded direction from a desired time point.
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公开(公告)号：US07367311B2
公开(公告)日：2008-05-06
申请号：US11698063
申请日：2007-01-26
IPC分类号： F02P5/00
CPC分类号： F02D41/3035 , F02B1/12 , F02B3/06 , F02B29/0406 , F02D35/028 , F02D41/1454 , F02D41/307 , F02D2250/21 , F02D2250/32 , F02M26/05 , F02M26/23
摘要： A compression ignition internal combustion engine includes injectors, each of which injects fuel into a corresponding cylinder. An ECU determines target ignition timing based on engine operational information and adjusts fuel injection start timing and a fuel injection quantity of each injector based on the target ignition timing. The engine further includes an air/fuel ratio sensor, which senses an oxygen concentration of exhaust gas. The ECU corrects the target ignition timing based on the oxygen concentration, which is sensed with the air/fuel ratio sensor, with reference to a predefined relationship between the oxygen concentration and ignition timing for achieving a generally equal constant torque of the engine.
摘要翻译： 压缩点火内燃机包括喷射器，每个喷射器将燃料喷射到相应的气缸中。 ECU根据发动机运转信息确定目标点火正时，并基于目标点火正时调整各喷射器的燃料喷射开始正时和燃料喷射量。 发动机还包括空气/燃料比传感器，其感测废气的氧气浓度。 参照氧气浓度和点火正时之间的预定关系，ECU基于用空气/燃料比传感器检测到的氧浓度校正目标点火正时，以实现发动机的大致相等的恒定转矩。
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4.发明申请Compression ignition engine control apparatus ensuring desired output of torque 有权压缩点火发动机控制装置确保扭矩的期望输出公开(公告)号：US20070119418A1
公开(公告)日：2007-05-31
申请号：US11605475
申请日：2006-11-29
CPC分类号： F02D41/401 , F01N3/021 , F02B37/00 , F02D35/023 , F02D35/028 , F02D41/008 , F02D41/3035 , Y02T10/44
摘要： An engine control apparatus for a multi-cylinder compression ignition internal combustion engine includes a combustion status sensor and a controller. The combustion status sensor is installed in a selected one of cylinders of the engine. The controller works to sample an output from the combustion status sensor to determine a combustion status parameter and determine injection timings so as to bring the combustion status parameter into agreement with a target value. The controller also corrects the injection timing for at least one of the cylinders in which the combustion status sensor is not installed so that a combustion status parameter of the at least one of the cylinders lies on an advanced side of that of the one of the cylinders in which the combustion status sensor is installed, thereby avoiding the deterioration of quality of combustion of the fuel arising from a shift of the time of the ignition in the retarded direction from a desired time point.
摘要翻译： 一种用于多气缸压缩点火内燃机的发动机控制装置，包括燃烧状态传感器和控制器。 燃烧状态传感器安装在发动机的选定气缸中。 控制器用于对来自燃烧状态传感器的输出进行采样以确定燃烧状态参数并确定喷射定时，以使燃烧状态参数与目标值一致。 控制器还校正其中未安装燃烧状态传感器的至少一个气缸的喷射正时，使得至少一个气缸的燃烧状态参数位于气缸中的一个气缸的前进侧 其中安装有燃烧状态传感器，从而避免了从延迟方向上的点火时间从期望时间点的偏移引起的燃料燃烧质量的劣化。
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公开(公告)号：US20060102147A1
公开(公告)日：2006-05-18
申请号：US11281742
申请日：2005-11-18
CPC分类号： F02D41/401 , F02B1/12 , F02B23/101 , F02B29/0406 , F02B31/06 , F02B2075/125 , F02D23/02 , F02D35/023 , F02D35/028 , F02D41/0052 , F02D41/3035 , F02D41/3836 , F02D41/40 , F02M26/05 , F02M26/23 , F02P5/153 , F02P19/02 , Y02T10/123 , Y02T10/44
摘要： When a combustion mode of an engine is a diffuse combustion mode in which an initial rising inclination of a heat-release-rate is steep, an electronic control unit (ECU) calculates an ignition timing in which the heat-release-rate exceeds an ignition determining value. Thus, even if a cylinder pressure sensor has a gain deviation or an offset deviation, the ignition timing is accurately detected to control the injection start timing. When the combustion mode is a premix combustion mode in which the initial rising inclination of the heat-release-rate is moderate, a peak arising timing of the heat-release-rate is calculated. Thus, the peak arising timing is accurately detected to control the injection start timing.
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公开(公告)号：US07146964B2
公开(公告)日：2006-12-12
申请号：US11281742
申请日：2005-11-18
IPC分类号： F02D41/40
CPC分类号： F02D41/401 , F02B1/12 , F02B23/101 , F02B29/0406 , F02B31/06 , F02B2075/125 , F02D23/02 , F02D35/023 , F02D35/028 , F02D41/0052 , F02D41/3035 , F02D41/3836 , F02D41/40 , F02M26/05 , F02M26/23 , F02P5/153 , F02P19/02 , Y02T10/123 , Y02T10/44
摘要： When a combustion mode of an engine is a diffuse combustion mode in which an initial rising inclination of a heat-release-rate is steep, an electronic control unit (ECU) calculates an ignition timing in which the heat-release-rate exceeds an ignition determining value. Thus, even if a cylinder pressure sensor has a gain deviation or an offset deviation, the ignition timing is accurately detected to control the injection start timing. When the combustion mode is a premix combustion mode in which the initial rising inclination of the heat-release-rate is moderate, a peak arising timing of the heat-release-rate is calculated. Thus, the peak arising timing is accurately detected to control the injection start timing.
摘要翻译： 当发动机的燃烧模式是其中放热速率的初始上升倾斜陡峭的扩散燃烧模式时，电子控制单元（ECU）计算放热率超过点火的点火正时 确定价值。 因此，即使气缸压力传感器具有增益偏差或偏移偏差，也可以精确地检测点火正时以控制喷射开始时刻。 当燃烧模式是预热混合燃烧模式，其中放热速率的初始升高倾斜度适中时，计算放热率的峰值出现时间。 因此，准确地检测峰值出现定时以控制喷射开始定时。
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