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公开(公告)号：US20070089708A1
公开(公告)日：2007-04-26
申请号：US11583787
申请日：2006-10-20
摘要： In a system, an actuator is linked to a valve rotatably installed in a passage through which gas flows. The actuator changes torque to be applied to the valve so as to adjust a rotational position of the valve based on a deviation between a current position and a target position. In the system, a first storing unit stores therein a first threshold. The first threshold is defined in a variation range within which a torque parameter is variable depending on change in the torque to be applied to the valve. The first threshold allows whether there is a possibility that an operation of the actuator is unstable. If the torque parameter substantially shifts either to or through the first threshold in the variation range, a restricting unit restricts variation in the torque parameter with the gas-flow being substantially kept through the passage.
摘要翻译： 在系统中，致动器连接到可旋转地安装在气体流过的通道中的阀门上。 执行器改变施加到阀的扭矩，以便基于当前位置和目标位置之间的偏差来调节阀的旋转位置。 在该系统中，第一存储单元在其中存储第一阈值。 第一阈值在变化范围内定义，其中扭矩参数根据施加到阀的转矩的变化而变化。 第一阈值允许执行器的操作是否不稳定的可能性。 如果转矩参数基本上在变化范围内移动到或超过第一阈值，则限制单元限制转矩参数的变化，其中气流基本保持通过通道。
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公开(公告)号：US07637245B2
公开(公告)日：2009-12-29
申请号：US11583787
申请日：2006-10-20
摘要： In a system, an actuator is linked to a valve rotatably installed in a passage through which gas flows. The actuator changes torque to be applied to the valve so as to adjust a rotational position of the valve based on a deviation between a current position and a target position. In the system, a first storing unit stores therein a first threshold. The first threshold is defined in a variation range within which a torque parameter is variable depending on change in the torque to be applied to the valve. The first threshold allows whether there is a possibility that an operation of the actuator is unstable. If the torque parameter substantially shifts either to or through the first threshold in the variation range, a restricting unit restricts variation in the torque parameter with the gas-flow being substantially kept through the passage.
摘要翻译： 在系统中，致动器连接到可旋转地安装在气体流过的通道中的阀门上。 执行器改变施加到阀的扭矩，以便基于当前位置和目标位置之间的偏差来调节阀的旋转位置。 在该系统中，第一存储单元在其中存储第一阈值。 第一阈值在变化范围内定义，其中扭矩参数根据施加到阀的转矩的变化而变化。 第一阈值允许执行器的操作是否不稳定的可能性。 如果转矩参数基本上在变化范围内移动到或超过第一阈值，则限制单元限制转矩参数的变化，其中气流基本保持通过通道。
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3.发明授权Exhaust recirculation apparatus for engine and method for controlling the same 有权用于发动机的排气再循环装置及其控制方法公开(公告)号：US07836693B2
公开(公告)日：2010-11-23
申请号：US11785815
申请日：2007-04-20
申请人： Tatsuya Fujita , Hiroshi Haraguchi , Eiji Takemoto
发明人： Tatsuya Fujita , Hiroshi Haraguchi , Eiji Takemoto
IPC分类号： F02B47/08
CPC分类号： F02D41/0052 , F02B29/0406 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , Y02T10/47
摘要： An exhaust recirculation apparatus is provided to an engine. A high-pressure EGR passage branches from upstream of a turbine of a turbocharger in an exhaust system for recirculating exhaust gas to downstream of a compressor of the turbocharger in an intake system. A high-pressure EGR regulating unit controls exhaust gas through the high-pressure EGR passage. A low-pressure EGR passage branches from downstream of the turbine in the exhaust system for recirculating exhaust gas to upstream of the compressor in the intake system. A low-pressure EGR regulating unit controls exhaust gas through the low-pressure EGR passage. A control unit feedback-controls the high-pressure EGR regulating unit, and open-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through the high-pressure EGR passage and the low-pressure EGR passage. The control unit feedback-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through only the low-pressure EGR passage.
摘要翻译： 向发动机提供排气再循环装置。 高压EGR通道在排气系统中的涡轮增压器的涡轮机的上游分支，用于将排气再循环到进气系统中的涡轮增压器的压缩机的下游。 高压EGR调节单元控制通过高压EGR通路的废气。 低压EGR通道在排气系统中从涡轮机的下游分支，用于将废气再循环到进气系统中的压缩机的上游。 低压EGR调节单元控制通过低压EGR通路的废气。 控制单元反馈控制高压EGR调节单元，并且当废气通过高压EGR通道和低压EGR通道再循环时，对低压EGR调节单元进行开度控制。 当废气仅通过低压EGR通道再循环时，控制单元反馈控制低压EGR调节单元。
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4.发明申请Exhaust recirculation apparatus for engine and method for controlling the same 有权用于发动机的排气再循环装置及其控制方法公开(公告)号：US20070246028A1
公开(公告)日：2007-10-25
申请号：US11785815
申请日：2007-04-20
申请人： Tatsuya Fujita , Hiroshi Haraguchi , Eiji Takemoto
发明人： Tatsuya Fujita , Hiroshi Haraguchi , Eiji Takemoto
CPC分类号： F02D41/0052 , F02B29/0406 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , Y02T10/47
摘要： An exhaust recirculation apparatus is provided to an engine. A high-pressure EGR passage branches from upstream of a turbine of a turbocharger in an exhaust system for recirculating exhaust gas to downstream of a compressor of the turbocharger in an intake system. A high-pressure EGR regulating unit controls exhaust gas through the high-pressure EGR passage. A low-pressure EGR passage branches from downstream of the turbine in the exhaust system for recirculating exhaust gas to upstream of the compressor in the intake system. A low-pressure EGR regulating unit controls exhaust gas through the low-pressure EGR passage. A control unit feedback-controls the high-pressure EGR regulating unit, and open-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through the high-pressure EGR passage and the low-pressure EGR passage. The control unit feedback-controls the low-pressure EGR regulating unit when exhaust gas is recirculated through only the low-pressure EGR passage.
摘要翻译： 向发动机提供排气再循环装置。 高压EGR通道在排气系统中的涡轮增压器的涡轮机的上游分支，用于将排气再循环到进气系统中的涡轮增压器的压缩机的下游。 高压EGR调节单元控制通过高压EGR通路的废气。 低压EGR通道在排气系统中从涡轮机的下游分支，用于将废气再循环到进气系统中的压缩机的上游。 低压EGR调节单元控制通过低压EGR通路的废气。 控制单元反馈控制高压EGR调节单元，并且当废气通过高压EGR通道和低压EGR通道再循环时，对低压EGR调节单元进行开度控制。 当废气仅通过低压EGR通道再循环时，控制单元反馈控制低压EGR调节单元。
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公开(公告)号：US20050092297A1
公开(公告)日：2005-05-05
申请号：US10972479
申请日：2004-10-26
申请人： Eiji Takemoto , Hiroshi Haraguchi
发明人： Eiji Takemoto , Hiroshi Haraguchi
CPC分类号： F02D41/401 , F02D35/023 , F02D35/028 , F02D41/1401 , F02D41/1446 , F02D2200/0404 , F02D2250/18 , Y02T10/44
摘要： An electronic control unit (ECU) of a fuel injection control system of an internal combustion engine feedback-controls injection timing so that a cylinder pressure maximum value coincides with a target pressure value in an operation range, in which the cylinder pressure maximum value increases as ignition timing advances and torque increases as the ignition timing advances. The ECU feedback-controls the injection timing so that the ignition timing coincides with target timing in another operation range, in which the cylinder pressure maximum value increases as the ignition timing advances but the torque decreases as the ignition timing advances. Thus, the torque can be outputted efficiently by selecting the appropriate feedback control in accordance with the operation range.
摘要翻译： 内燃机的燃料喷射控制系统的电子控制单元（ECU）反馈控制喷射正时，使得气缸压力最大值与在气缸压力最大值增加的操作范围内的目标压力值一致 随着点火正时的进行，点火正时进行和转矩增加。 ECU反馈控制喷射正时，使得点火正时与另一个操作范围内的目标定时一致，其中气缸压力最大值随着点火正时前进而增加，但是随着点火正时的进行，转矩减小。 因此，通过根据操作范围选择适当的反馈控制，能够有效地输出转矩。
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公开(公告)号：US06988030B2
公开(公告)日：2006-01-17
申请号：US10990987
申请日：2004-11-18
申请人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
发明人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
IPC分类号： B60T7/12
CPC分类号： F02D41/1498 , F02D41/123 , F02D41/2438 , F02D41/2441 , F02D41/2467 , F02D41/3845
摘要： An electronic control unit (ECU) of an engine calculates a first modification value for decreasing a correction value of an injection period when a state variation of the engine caused by a single injection is greater than a target value. The ECU calculates a second modification value for increasing the correction value when the state variation is less than the target value. The second modification value is greater than the first modification value. Thus, a period necessary to converge the correction value can be shortened when the correction value is increased. The first modification value is increased if a difference between the state variation and the target value exceeds a permissible value when the correction value is decreased. Thus, the injection quantity is decreased quickly to prevent excessive fuel injection.
摘要翻译： 当发动机由单次喷射引起的状态变化大于目标值时，发动机的电子控制单元（ECU）计算用于减小喷射周期的校正值的第一修改值。 当状态变化小于目标值时，ECU计算用于增加校正值的第二修改值。 第二修改值大于第一修改值。 因此，当校正值增加时，可以缩短收敛校正值所需的时间。 如果当校正值减小时，如果状态变化和目标值之间的差超过允许值，则第一修改值增加。 因此，喷射量迅速降低以防止燃料喷射过多。
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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：US20050109322A1
公开(公告)日：2005-05-26
申请号：US10990987
申请日：2004-11-18
申请人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
发明人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
CPC分类号： F02D41/1498 , F02D41/123 , F02D41/2438 , F02D41/2441 , F02D41/2467 , F02D41/3845
摘要： An electronic control unit (ECU) of an engine calculates a first modification value for decreasing a correction value of an injection period when a state variation of the engine caused by a single injection is greater than a target value. The ECU calculates a second modification value for increasing the correction value when the state variation is less than the target value. The second modification value is greater than the first modification value. Thus, a period necessary to converge the correction value can be shortened when the correction value is increased. The first modification value is increased if a difference between the state variation and the target value exceeds a permissible value when the correction value is decreased. Thus, the injection quantity is decreased quickly to prevent excessive fuel injection.
摘要翻译： 当发动机由单次喷射引起的状态变化大于目标值时，发动机的电子控制单元（ECU）计算用于减小喷射周期的校正值的第一修改值。 当状态变化小于目标值时，ECU计算用于增加校正值的第二修改值。 第二修改值大于第一修改值。 因此，当校正值增加时，可以缩短收敛校正值所需的时间。 如果当校正值减小时，如果状态变化和目标值之间的差超过允许值，则第一修改值增加。 因此，喷射量迅速降低以防止燃料喷射过多。
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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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公开(公告)号：US07007664B2
公开(公告)日：2006-03-07
申请号：US10972479
申请日：2004-10-26
申请人： Eiji Takemoto , Hiroshi Haraguchi
发明人： Eiji Takemoto , Hiroshi Haraguchi
CPC分类号： F02D41/401 , F02D35/023 , F02D35/028 , F02D41/1401 , F02D41/1446 , F02D2200/0404 , F02D2250/18 , Y02T10/44
摘要： An electronic control unit (ECU) of a fuel injection control system of an internal combustion engine feedback-controls injection timing so that a cylinder pressure maximum value coincides with a target pressure value in an operation range, in which the cylinder pressure maximum value increases as ignition timing advances and torque increases as the ignition timing advances. The ECU feedback-controls the injection timing so that the ignition timing coincides with target timing in another operation range, in which the cylinder pressure maximum value increases as the ignition timing advances but the torque decreases as the ignition timing advances. Thus, the torque can be outputted efficiently by selecting the appropriate feedback control in accordance with the operation range.
摘要翻译： 内燃机的燃料喷射控制系统的电子控制单元（ECU）反馈控制喷射正时，使得气缸压力最大值与在气缸压力最大值增加的操作范围内的目标压力值一致 随着点火正时的进行，点火正时进行和转矩增加。 ECU反馈控制喷射正时，使得点火正时与另一个操作范围内的目标定时一致，其中气缸压力最大值随着点火正时前进而增加，但是随着点火正时的进行，转矩减小。 因此，通过根据操作范围选择适当的反馈控制，能够有效地输出转矩。
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