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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：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：US07021288B2
公开(公告)日：2006-04-04
申请号：US10967241
申请日：2004-10-19
申请人： Masahiro Asano , Eiji Takemoto , Akira Umehara
发明人： Masahiro Asano , Eiji Takemoto , Akira Umehara
CPC分类号： F02D41/0055 , F02D41/0007 , F02D41/1498 , F02D41/187 , F02D41/2438 , F02D41/2441 , F02D41/2467 , F02D41/38 , F02D2200/0406 , Y02T10/144 , Y02T10/47
摘要： An injection quantity control apparatus for accurately performing an injection quantity learning process in a diesel engine creates an environment for obtaining a characteristic value in a one-to-one relationship with an actual injection quantity. A controller performs a one-shot injection operation for a cylinder of an engine while the environment is established. An injection command quantity is corrected based on an engine speed variation caused by the one-shot injection. After establishment of the condition and before the injection, the opening of a valve is controlled to be smaller than a reference and an opening of each of a diesel throttle and variable turbocharger is controlled to be larger than a reference. A composition of an air flowing into a combustion chamber is stabilized to ensure that the characteristic value detected after the one-shot injection is in a one-to-one relationship with the actual injection quantity.
摘要翻译： 用于在柴油发动机中精确地进行喷射量学习处理的喷射量控制装置创建用于获得与实际喷射量成一一关系的特征值的环境。 在建立环境时，控制器对发动机气缸进行一次注射操作。 基于由单次喷射引起的发动机转速变化来校正喷射指令量。 在建立条件并且在注入之前，阀的打开被控制为小于参考，并且柴油节气门和可变涡轮增压器中的每一个的开度被控制为大于参考。 流入燃烧室的空气的组成被稳定，以确保在单次喷射之后检测到的特征值与实际喷射量成一一对应关系。
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公开(公告)号：US06990950B2
公开(公告)日：2006-01-31
申请号：US10873144
申请日：2004-06-23
IPC分类号： F02B3/00
CPC分类号： F02D41/2483 , F02D41/2438 , F02D41/2467
摘要： An electronic control unit (an ECU) of a fuel injection system performs a learning injection based on a learning injection quantity and obtains multiple influence values of an operating state of an engine generated through the learning injection. The ECU calculates a learning value for correcting the injection quantity in a normal operation based on the multiple influence values. The ECU determines whether the influence value obtained during the learning injection is within a predetermined range of the influence value. The ECU calculates a provisional learning injection quantity for bringing a subsequent influence value into the predetermined range if the influence value obtained in an early stage of the obtainment is out of the predetermined range. Then, the ECU calculates the other influence values by performing the other learning injections based on the provisional learning injection quantity.
摘要翻译： 燃料喷射系统的电子控制单元（ECU）基于学习喷射量进行学习喷射，并获得通过学习喷射生成的发动机的运转状态的多个影响值。 ECU基于多个影响值计算用于在正常操作中校正喷射量的学习值。 ECU确定在学习注入期间获得的影响值是否在影响值的预定范围内。 如果在获得的早期获得的影响值超出预定范围，则ECU计算用于使后续影响值进入预定范围的临时学习注入量。 然后，ECU通过基于临时学习注入量执行其他学习注入来计算其他影响值。
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公开(公告)号：US20050092298A1
公开(公告)日：2005-05-05
申请号：US10967241
申请日：2004-10-19
申请人： Masahiro Asano , Eiji Takemoto , Akira Umehara
发明人： Masahiro Asano , Eiji Takemoto , Akira Umehara
CPC分类号： F02D41/0055 , F02D41/0007 , F02D41/1498 , F02D41/187 , F02D41/2438 , F02D41/2441 , F02D41/2467 , F02D41/38 , F02D2200/0406 , Y02T10/144 , Y02T10/47
摘要： An injection quantity control apparatus for accurately performing an injection quantity learning process in a diesel engine creates an environment for obtaining a characteristic value in a one-to-one relationship with an actual injection quantity. A controller performs a one-shot injection operation for a cylinder of an engine while the environment is established. An injection command quantity is corrected based on an engine speed variation caused by the one-shot injection. After establishment of the condition and before the injection, the opening of a valve is controlled to be smaller than a reference and an opening of each of a diesel throttle and variable turbocharger is controlled to be larger than a reference. A composition of an air flowing into a combustion chamber is stabilized to ensure that the characteristic value detected after the one-shot injection is in a one-to-one relationship with the actual injection quantity.
摘要翻译： 用于在柴油发动机中精确地进行喷射量学习处理的喷射量控制装置创建用于获得与实际喷射量成一一关系的特征值的环境。 在建立环境时，控制器对发动机气缸进行一次注射操作。 基于由单次喷射引起的发动机转速变化来校正喷射指令量。 在建立条件并且在注入之前，阀的打开被控制为小于参考，并且柴油节气门和可变涡轮增压器中的每一个的开度被控制为大于参考。 流入燃烧室的空气的组成被稳定，以确保在单次喷射之后检测到的特征值与实际喷射量成一一对应关系。
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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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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：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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公开(公告)号：US06990958B2
公开(公告)日：2006-01-31
申请号：US10980800
申请日：2004-11-04
申请人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
发明人： Masahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
IPC分类号： F02D41/40
CPC分类号： F02D41/3845 , F02D41/1497 , F02D41/2438 , F02D41/2441 , F02D41/247 , F02M59/34 , F02M63/0225
摘要： An electronic control unit (ECU) of an injection control system of an internal combustion engine determines that a load of a fuel pump is stabilized when a pressure-feeding operation delay elapses since a command pressure-feeding quantity outputted to the fuel pump reaches a certain pressure-feeding quantity necessary to maintain a target injection pressure. The ECU permits a single injection when a waiting period necessary to measure rotation speeds once for each cylinder before the single injection is performed elapses since the load of the fuel pump is stabilized. Thus, the single injection timing is determined based on the time point when the command pressure-feeding quantity is stabilized, the pressure-feeding operation delay, and the waiting period. Therefore, an injection quantity learning operation can be performed highly accurately in a short period.
摘要翻译： 内燃机的喷射控制系统的电子控制单元（ECU），由于输出到燃料泵的指令压力供给量达到一定程度，因此当经过供压运转延迟时，燃料泵的负荷稳定 保持目标注射压力所需的加压量。 当燃料泵的负载稳定时，在执行单次喷射之前，在经过了每个气缸一次测量转速所需的等待时间之后，ECU允许单次喷射。 因此，基于指令加压量稳定的时间点，加压运转延迟和等待期间来确定单次喷射正时。 因此，可以在短时间内高精度地执行喷射量学习操作。
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公开(公告)号：US20050098158A1
公开(公告)日：2005-05-12
申请号：US10980800
申请日：2004-11-04
申请人： Nasahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
发明人： Nasahiro Asano , Eiji Takemoto , Hiroshi Haraguchi
IPC分类号： F02D45/00 , F02D41/04 , F02D41/12 , F02D41/14 , F02D41/24 , F02D41/38 , F02M59/36 , F02M63/02 , F02D31/00 , F02M7/00
CPC分类号： F02D41/3845 , F02D41/1497 , F02D41/2438 , F02D41/2441 , F02D41/247 , F02M59/34 , F02M63/0225
摘要： An electronic control unit (ECU) of an injection control system of an internal combustion engine determines that a load of a fuel pump is stabilized when a pressure-feeding operation delay elapses since a command pressure-feeding quantity outputted to the fuel pump reaches a certain pressure-feeding quantity necessary to maintain a target injection pressure. The ECU permits a single injection when a waiting period necessary to measure rotation speeds once for each cylinder before the single injection is performed elapses since the load of the fuel pump is stabilized. Thus, the single injection timing is determined based on the time point when the command pressure-feeding quantity is stabilized, the pressure-feeding operation delay, and the waiting period. Therefore, an injection quantity learning operation can be performed highly accurately in a short period.
摘要翻译： 内燃机的喷射控制系统的电子控制单元（ECU），由于输出到燃料泵的指令压力供给量达到一定程度，因此当经过供压运转延迟时，燃料泵的负荷稳定 保持目标注射压力所需的加压量。 当燃料泵的负载稳定时，在执行单次喷射之前，在经过了每个气缸一次测量转速所需的等待时间之后，ECU允许单次喷射。 因此，基于指令加压量稳定的时间点，加压运转延迟和等待期间来确定单次喷射正时。 因此，可以在短时间内高精度地执行喷射量学习操作。
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