公开(公告)号：US06834627B2

公开(公告)日：2004-12-28

申请号：US10797187

申请日：2004-03-11

申请人： Keizo Hiraku ,  Naohide Fuwa ,  Hirohiko Yamada ,  Takahiro Yamanashi

发明人： Keizo Hiraku ,  Naohide Fuwa ,  Hirohiko Yamada ,  Takahiro Yamanashi

IPC分类号： F01L134

CPC分类号： F02D13/0223 ,  F02B27/0294 ,  F02D41/0002 ,  F02D41/18 ,  F02D41/22 ,  F02D2041/001 ,  F02D2041/0015 ,  F02D2041/002 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/42

摘要： An intake air amount control apparatus for an internal combustion engine is provided with: an opening control mechanism and a variable valve mechanism, which control an intake air amount; an intake characteristics change mechanism for controlling the intake air amount by adjusting a parameter or parameters different from those of the above two mechanisms; and an intake amount control device for performing a cooperative control of these mechanisms upon the occurrence of any normal condition. The intake air amount control apparatus is also provided with: an abnormality detection device for detecting an abnormal condition in these three mechanisms; and a fail-safe device for controlling the intake air amount of the opening control mechanism out of these three mechanisms and controlling the other two mechanism, so as to fix their control amounts to constant values.

公开(公告)号：US07363889B2

公开(公告)日：2008-04-29

申请号：US10521556

申请日：2004-04-28

申请人： Takashi Tsunooka ,  Keizo Hiraku ,  Yukihiro Nakasaka ,  Akira Hashizume ,  Hiroshi Kanai ,  Naohide Fuwa ,  Tomoyuki Kaga

发明人： Takashi Tsunooka ,  Keizo Hiraku ,  Yukihiro Nakasaka ,  Akira Hashizume ,  Hiroshi Kanai ,  Naohide Fuwa ,  Tomoyuki Kaga

IPC分类号： F01L1/34

CPC分类号： F02D13/0226 ,  F02D13/0207 ,  F02D13/0261 ,  F02D13/0265 ,  F02D41/0002 ,  F02D41/006 ,  F02D41/1497 ,  F02D2041/001 ,  F02D2200/0406 ,  F02M26/01 ,  Y02T10/18 ,  Y02T10/42

摘要： A control device of a multicylinder internal combustion engine provided with a valve operating characteristic control means for controlling a valve operating characteristic of at least one of an intake valve and exhaust valve, which estimates an intake difference of cylinders and limits a control range of said valve operating characteristic in accordance with said estimated intake difference.

摘要翻译： 一种具有阀操作特性控制装置的多气缸内燃机的控制装置，用于控制进气门和排气阀中的至少一个的气门操作特性，其估计气缸的进气差，并限制所述阀的控制范围 根据所述估计进气差进行运转特性。

公开(公告)号：US20060150936A1

公开(公告)日：2006-07-13

申请号：US10521556

申请日：2004-04-28

申请人： Takashi Tsunooka ,  Keizo Hiraku ,  Yukihiro Nakasaka ,  Akira Hashizume ,  Hiroshi Kanai ,  Naohide Fuwa ,  Tomoyuki Kaga

发明人： Takashi Tsunooka ,  Keizo Hiraku ,  Yukihiro Nakasaka ,  Akira Hashizume ,  Hiroshi Kanai ,  Naohide Fuwa ,  Tomoyuki Kaga

IPC分类号： F01L1/34

CPC分类号： F02D13/0226 ,  F02D13/0207 ,  F02D13/0261 ,  F02D13/0265 ,  F02D41/0002 ,  F02D41/006 ,  F02D41/1497 ,  F02D2041/001 ,  F02D2200/0406 ,  F02M26/01 ,  Y02T10/18 ,  Y02T10/42

摘要： A control device of a multicylinder internal combustion engine provided with a valve operating characteristic control means for controlling a valve operating characteristic of at least one of an intake valve and exhaust valve, which estimates an intake difference of cylinders and limits a control range of said valve operating characteristic in accordance with said estimated intake difference.

摘要翻译： 一种具有阀操作特性控制装置的多气缸内燃机的控制装置，用于控制进气门和排气阀中的至少一个的气门操作特性，其估计气缸的进气差，并限制所述阀的控制范围 根据所述估计进气差进行运转特性。

公开(公告)号：US06782853B2

公开(公告)日：2004-08-31

申请号：US10645912

申请日：2003-08-22

申请人： Masanobu Kanamaru ,  Naohide Fuwa ,  Akira Eiraku ,  Gohki Kinoshita ,  Masashi Hakariya ,  Takahiro Yamanashi

发明人： Masanobu Kanamaru ,  Naohide Fuwa ,  Akira Eiraku ,  Gohki Kinoshita ,  Masashi Hakariya ,  Takahiro Yamanashi

IPC分类号： F01L134

CPC分类号： F02D13/0211 ,  F01L1/267 ,  F01L1/3442 ,  F01L13/0063 ,  F01L2201/00 ,  F02B2075/125 ,  F02D2041/001 ,  F02D2041/1433 ,  Y02T10/18

摘要： A control apparatus is provided for a valve actuating system which is operable to lift an intake valve or an exhaust valve of an internal combustion engine and includes a lift characteristic changing mechanism for changing a lift characteristic of the intake valve or the exhaust valve. The control apparatus calculates a target operation value of the lift characteristic changing mechanism, and calculates a realizable range of the operation value which can be realized by the lift characteristic changing mechanism, based on a controlled variable that can be given to the lift characteristic changing mechanism and at least one parameter related to an environment surrounding the lift characteristic changing mechanism. If the target operation value is not within the realizable range of the operation value, the control apparatus calculates a new target operation value to be within the realizable range.

摘要翻译： 提供了一种用于阀致动系统的控制装置，其可操作以提升内燃机的进气门或排气门，并且包括用于改变进气门或排气门的升程特性的提升特性改变机构。 控制装置计算升降特性变更机构的目标运转值，根据提升特性变更机构的受控变量，计算升降特性变更机构能够实现的运转值的可实现范围 以及与围绕提升特性变化机构的环境有关的至少一个参数。 如果目标操作值不在操作值的可实现范围内，则控制装置将新的目标操作值计算在可实现的范围内。

公开(公告)号：US07690339B2

公开(公告)日：2010-04-06

申请号：US11713750

申请日：2007-03-05

申请人： Naohide Fuwa ,  Masashi Kishimoto

发明人： Naohide Fuwa ,  Masashi Kishimoto

IPC分类号： F01L1/34

CPC分类号： F01L13/0063 ,  F01L1/34 ,  F01L1/34403 ,  F01L1/352 ,  F01L13/0015 ,  F01L13/0031 ,  F01L2013/0073

摘要： A variable valve timing and lift mechanism includes an actuator that adjusts the period in which an intake valve is held open by moving a drive element. When a control unit switches the duration, the control unit controls the actuator so that the duration is changed at a first speed when the duration is equal to a first value, and at a second speed when the duration is equal to a second value that is smaller than the first value. The absolute value of the second speed is smaller than the absolute value of the first speed. In effect, the actuator is controlled so that when the duration is in a short-duration range, the duration changes more slowly than when the duration is in a long-duration range.

摘要翻译： 可变气门正时和提升机构包括致动器，其通过移动驱动元件来调节进气门保持打开的时段。 当控制单元切换持续时间时，控制单元控制致动器，使得持续时间在持续时间等于第一值时以第一速度改变持续时间，并且当持续时间等于第二值时 小于第一个值。 第二速度的绝对值小于第一速度的绝对值。 实际上，致动器被控制，使得当持续时间处于短持续时间范围时，持续时间变化比持续时间长于持续时间范围的变化更慢。

公开(公告)号：US07685978B2

公开(公告)日：2010-03-30

申请号：US11646272

申请日：2006-12-28

申请人： Naohide Fuwa ,  Takashi Yanagizawa

发明人： Naohide Fuwa ,  Takashi Yanagizawa

IPC分类号： F01L1/34

CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F02D13/0207 ,  Y02T10/18

摘要： A control device for a variable valve mechanism that avoids the overheating an actuator while reducing adverse effects on the driveability of a vehicle. The actuator adjusts the lift of an intake valve by moving a drive element, and a sensor is used to determine whether the actuator will overheat. A control unit stops the drive element if the lift adjusted by the actuator is equal to or larger than a first predetermined value, when the control unit determines that the actuator will overheat. The actuator may be an electric actuator. In this case, the actuator maintains the drive element in a fixed position when supply of electric power to the actuator is interrupted. The control unit stops the drive element, and interrupts the supply of electric power to the actuator.

摘要翻译： 一种用于可变气门机构的控制装置，其避免了致动器的过热，同时减少对车辆的驾驶能力的不利影响。 致动器通过移动驱动元件来调节进气阀的升程，并且使用传感器来确定执行器是否会过热。 如果由致动器调节的升程等于或大于第一预定值，则控制单元停止驱动元件，当控制单元确定致动器将过热时。 致动器可以是电致动器。 在这种情况下，当致动器的电力供应中断时，致动器将驱动元件保持在固定位置。 控制单元停止驱动元件，并中断对致动器的电力供应。

公开(公告)号：US07424872B2

公开(公告)日：2008-09-16

申请号：US11035078

申请日：2005-01-14

申请人： Naohide Fuwa ,  Harufumi Muto

发明人： Naohide Fuwa ,  Harufumi Muto

IPC分类号： F01L1/34

CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L13/0005 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2800/12 ,  F01L2820/033 ,  F01L2820/041 ,  F01L2820/042

摘要： A failure diagnosis for a slide sensor of a variable valve mechanism is performed when a valve working angle is at a value in the initial state. The initial state is set to a valve characteristic state where the valve working angle is at the maximum value. The maximum valve working angle corresponds to the refuge running performable region in which an engine can be started and refuge running can be performed. Therefore, even when it is difficult to adjust the valve working angle using rotation of a spiral cam due to a failure in the slide sensor, the refuge running can be performed only by maintaining the initial state by maintaining control. It is thus possible to increase reliability of the refuge running in the case where a failure has occurred in the variable valve mechanism.

摘要翻译： 当阀工作角度处于初始状态的值时，执行可变气门机构的滑动传感器的故障诊断。 初始状态被设定为阀工作角为最大值的阀特性状态。 最大阀工作角度对应于能够启动发动机并可进行避难运行的避难所运行区域。 因此，即使由于滑动传感器的故障而难以通过螺旋凸轮的旋转来调节阀的工作角度，所以只能通过维持控制来维持初始状态来进行避难运行。 因此，在可变气门机构发生故障的情况下，可以提高避难运行的可靠性。

公开(公告)号：US07316210B2

公开(公告)日：2008-01-08

申请号：US11360763

申请日：2006-02-24

申请人： Naohide Fuwa

发明人： Naohide Fuwa

IPC分类号： F01L1/34

CPC分类号： F01L13/0015 ,  F01L2800/01 ,  F02D13/023 ,  F02D13/0261 ,  F02D41/042 ,  F02D41/06 ,  F02D2013/0292 ,  F02N19/004 ,  Y02T10/18

摘要： An electronic control unit sets a target valve actuation parameter in accordance with an operating state of an internal combustion engine, and controls a variable valve actuation mechanism such that an actual valve actuation parameter of an intake valve becomes equal to the target valve actuation parameter. The variable valve actuation mechanism changes a valve actuation parameter of the intake valve. From before an initial fuel injection is performed to when a starting process of the engine is completed, the electronic control unit sets the target valve actuation parameter to an engine starting valve actuation parameter at which the valve closing timing of the intake valve coincides with or is close to a bottom dead center of the intake valve.

摘要翻译： 电子控制单元根据内燃机的运转状态来设定目标阀致动参数，并控制可变气门致动机构，使得进气门的实际气门致动参数等于目标气门致动参数。 可变阀致动机构改变进气门的阀致动参数。 从执行初始燃料喷射到发动机的起动过程完成之前，电子控制单元将目标阀致动参数设定为进气门关闭正时重合的发动机起动阀启动参数，或者是 靠近进气阀的下止点。

公开(公告)号：US20070163525A1

公开(公告)日：2007-07-19

申请号：US11646272

申请日：2006-12-28

申请人： Naohide Fuwa ,  Takashi Yanagizawa

发明人： Naohide Fuwa ,  Takashi Yanagizawa

IPC分类号： F01L1/34

CPC分类号： F01L13/0063 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2105/00 ,  F01L2800/00 ,  F01L2820/032 ,  F02D13/0207 ,  Y02T10/18

摘要： A control device for a variable valve mechanism that avoids the overheating an actuator while reducing adverse effects on the driveability of a vehicle. The actuator adjusts the lift of an intake valve by moving a drive element, and a sensor is used to determine whether the actuator will overheat. A control unit stops the drive element if the lift adjusted by the actuator is equal to or larger than a first predetermined value, when the control unit determines that the actuator will overheat. The actuator may be an electric actuator. In this case, the actuator maintains the drive element in a fixed position when supply of electric power to the actuator is interrupted. The control unit stops the drive element, and interrupts the supply of electric power to the actuator.

摘要翻译： 一种用于可变气门机构的控制装置，其避免了致动器的过热，同时减少对车辆的驾驶能力的不利影响。 致动器通过移动驱动元件来调节进气阀的升程，并且使用传感器来确定执行器是否会过热。 如果由致动器调节的升程等于或大于第一预定值，则控制单元停止驱动元件，当控制单元确定致动器将过热时。 致动器可以是电致动器。 在这种情况下，当致动器的电力供应中断时，致动器将驱动元件保持在固定位置。 控制单元停止驱动元件，并中断对致动器的电力供应。

公开(公告)号：US07201139B2

公开(公告)日：2007-04-10

申请号：US11250429

申请日：2005-10-17

申请人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

发明人： Naohide Fuwa ,  Masanobu Kanamaru ,  Masaaki Konishi ,  Akinori Osanai ,  Satoru Watanabe ,  Masato Ehara

IPC分类号： F02B31/00 ,  F02B31/08

CPC分类号： F02D13/0215 ,  F01L1/022 ,  F01L1/34 ,  F01L1/3442 ,  F01L13/0042 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2820/041 ,  F02B2275/18 ,  F02D13/0253 ,  F02D13/0261 ,  F02D35/024 ,  F02D35/026 ,  F02D37/02 ,  F02D41/006 ,  F02D41/0062 ,  F02D2041/001 ,  F02D2041/0015 ,  F02M26/01 ,  F02P5/1504 ,  F02P5/1516 ,  Y02T10/18 ,  Y02T10/46 ,  Y02T10/47

摘要： A device for controlling an internal combustion engine, comprising a variable valve mechanism for varying opening areas (valve lift) or the working angles (valve-opening periods) of at least either the intake valves or the exhaust valves, wherein a pressure in the cylinder is calculated based on the opening area or the working angle of at least either the intake valve or the exhaust valve varied by the variable valve mechanism, and the internal combustion engine is controlled based on the pressure in the cylinder. Upon calculating the pressure in the cylinder based on the opening areas or the working angles of the intake and exhaust valves, it is possible to more suitably control the internal combustion engine based not only upon the peak combustion pressure in the cylinder like when a combustion pressure sensor is used but also upon a pressure in the cylinder at a moment other than the peak combustion pressure.

摘要翻译： 一种用于控制内燃机的装置，包括用于改变进气门或排气门中的至少任一个的开口面积（气门升程）或工作角度（阀打开周期）的可变气门机构，其中气缸中的压力 基于由可变气门机构变化的进气门或排气门中的至少一个的开口面积或工作角度来计算，并且基于气缸中的压力来控制内燃机。 在基于进气门和排气门的开口面积或工作角度计算气缸中的压力时，不仅可以基于气缸中的峰值燃烧压力更适当地控制内燃机，如同燃烧压力 传感器，而且在除了峰值燃烧压力之外的时刻，气缸中的压力也被使用。