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    Variable valve timing apparatus with reduced power consumption and control method thereof
    2.
    发明授权
    Variable valve timing apparatus with reduced power consumption and control method thereof 有权
    具有降低功耗的可变气门正时装置及其控制方法

    公开(公告)号：US07406933B2

    公开(公告)日：2008-08-05

    申请号：US11691078

    申请日：2007-03-26

    申请人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

    发明人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

    IPC分类号： F01L1/34

    CPC分类号： F01L1/352 ,  F01L1/024 ,  F01L2001/0537 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042

    摘要： A convergence determination of intake valve phase control is made by comparing a phase deviation of an intake valve from a target phase with a convergence determination value. At the time of convergence, it is determined that the intake valve phase has reached the target phase, so that the required phase-change amount of a camshaft is set to zero and therefore the actuator operation amount is also set to zero. At the time of engine stop when the target phase has a fixed value, after convergence of the intake valve phase control, the operation of the actuator is stopped. In addition, during the course of engine stop, the convergence determination value is set to be switched from the time of engine operation so that the convergence determination of the intake valve phase control is made in more relaxed conditions compared with at the time of engine operation.

    摘要翻译： 通过将进气门与目标相位的相位偏差与收敛判定值进行比较来进行进气门相位控制的收敛判定。 在收敛时，确定进气阀相位已经达到目标相位，使得凸轮轴的所需相变量被设定为零，因此致动器操作量也被设定为零。 在目标相位为固定值的发动机停止时，进气门相位控制收敛后，执行器的动作停止。 此外，在发动机停止的过程中，将收敛判定值设定为从发动机运转时开始切换，使得与发动机运转时相比，进气门相位控制的收敛判定在更宽松的条件下进行 。

    VARIABLE VALVE TIMING APPARATUS WITH REDUCED POWER CONSUMPTION AND CONTROL METHOD THEREOF
    3.
    发明申请
    VARIABLE VALVE TIMING APPARATUS WITH REDUCED POWER CONSUMPTION AND CONTROL METHOD THEREOF 有权
    具有降低功耗的可变阀门定时装置及其控制方法

    公开(公告)号：US20070227482A1

    公开(公告)日：2007-10-04

    申请号：US11691078

    申请日：2007-03-26

    申请人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

    发明人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

    IPC分类号： F01L1/34 ,  F01L1/02

    CPC分类号： F01L1/352 ,  F01L1/024 ,  F01L2001/0537 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042

    摘要： A convergence determination of intake valve phase control is made by comparing a phase deviation of an intake valve from a target phase with a convergence determination value. At the time of convergence, it is determined that the intake valve phase has reached the target phase, so that the required phase-change amount of a camshaft is set to zero and therefore the actuator operation amount is also set to zero. At the time of engine stop when the target phase has a fixed value, after convergence of the intake valve phase control, the operation of the actuator is stopped. In addition, during the course of engine stop, the convergence determination value is set to be switched from the time of engine operation so that the convergence determination of the intake valve phase control is made in more relaxed conditions compared with at the time of engine operation.

    摘要翻译： 通过将进气门与目标相位的相位偏差与收敛判定值进行比较来进行进气门相位控制的收敛判定。 在收敛时，确定进气阀相位已经达到目标相位，使得凸轮轴的所需相变量被设定为零，因此致动器操作量也被设定为零。 在目标相位为固定值的发动机停止时，进气门相位控制收敛后，执行器的动作停止。 此外，在发动机停止的过程中，将收敛判定值设定为从发动机运转时开始切换，使得与发动机运转时相比，进气门相位控制的收敛判定在更宽松的条件下进行 。

    Variable valve timing apparatus and control method therefor
    5.
    发明授权
    Variable valve timing apparatus and control method therefor 有权
    可变气门正时装置及其控制方法

    公开(公告)号：US08047169B2

    公开(公告)日：2011-11-01

    申请号：US12303341

    申请日：2007-03-22

    申请人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

    发明人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

    IPC分类号： F01L1/34

    CPC分类号： F01L1/34 ,  F01L1/352

    摘要： An ECU executes a program including the steps of: controlling, when the phase of an intake valve is a phase advanced relative to a threshold value CA (FF) (NO in S106), an electric motor operating an intake VVT mechanism by feedback control (S202); and controlling, when the phase of the intake valve is a phase retarded relative to the threshold value CA (FF) (YES in S106), the electric motor by feed-forward control (S200). Under the feed-forward control, a duty command value is output that is smaller than an upper limit of a duty command value under the feedback control.

    摘要翻译： ECU执行程序，包括以下步骤：当进气门的相位相对于阈值CA（FF）相位提前（S106中为“否”）时，控制通过反馈控制来操作进气VVT机构的电动机 S202）; 并且当进气门的相位相对于阈值CA（FF）相位延迟（S106中为“是”）时，通过前馈控制来控制电动机（S200）。 在前馈控制下，输出比反馈控制下的占空指令值的上限小的占空指令值。

    Variable valve timing system and method for controlling the same
    6.
    发明授权
    Variable valve timing system and method for controlling the same 有权
    可变气门正时系统及其控制方法

    公开(公告)号：US07765968B2

    公开(公告)日：2010-08-03

    申请号：US11846983

    申请日：2007-08-29

    申请人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Masayoshi Hattori ,  Noboru Takagi ,  Haruyuki Urushihata ,  Masaomi Inoue ,  Yuuichi Takemura ,  Toshikazu Tanaka

    发明人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Masayoshi Hattori ,  Noboru Takagi ,  Haruyuki Urushihata ,  Masaomi Inoue ,  Yuuichi Takemura ,  Toshikazu Tanaka

    IPC分类号： F01L1/34

    CPC分类号： F01L1/352 ,  F01L1/022 ,  F01L1/026 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042 ,  F02D13/0238 ,  Y02T10/18

    摘要： An actuator operation amount setting unit prepares the rotational speed command value for an electric motor such that the phase of an intake valve changes in accordance with the target phase. An electric-motor EDU controls the motor supply electric power such that the electric motor operates in accordance with the rotational speed command value. An overheating determination unit determines whether at least one of the electric motor and the electric-motor EDU needs to be restricted from heating up based on a result of comparison between the information indicating the motor supply electric power and the reference value. A rotational speed command value restriction unit restricts the rotational speed command value provided to the electric-motor EDU to a value within a predetermined range, when it is determined that the at least one of the electric motor and the electric-motor EDU needs to be restricted from heating up. A reference value setting unit variably sets the reference value based on the rotational speed of the electric motor.

    摘要翻译： 致动器操作量设定单元准备电动机的转速指令值，使得进气阀的相位根据目标相位而变化。 电动机EDU控制电动机供电电力，使得电动机根据转速指令值进行动作。 过热判定单元基于表示电动机供给电力的信息与基准值之间的比较结果来判定是否需要限制电动机和电动机EDU中的至少一个加热。 旋转速度指令值限制单元将电动机EDU的转速指令值限制在规定范围内的值时，判断为电动机和电动机EDU中的至少一个需要为 限制加热。 参考值设定单元基于电动机的转速可变地设定基准值。

    Variable valve timing apparatus
    8.
    发明申请
    Variable valve timing apparatus 有权
    可变气门正时装置

    公开(公告)号：US20070125332A1

    公开(公告)日：2007-06-07

    申请号：US11585200

    申请日：2006-10-24

    申请人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Yoshihito Moriya ,  Haruyuki Urushihata ,  Akihiko Takenaka ,  Eiji Isobe ,  Takayuki Inohara

    发明人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Noboru Takagi ,  Yoshihito Moriya ,  Haruyuki Urushihata ,  Akihiko Takenaka ,  Eiji Isobe ,  Takayuki Inohara

    IPC分类号： F01L1/34

    CPC分类号： F01L1/34 ,  F01L1/352 ,  F01L1/356

    摘要： In the case where an intake valve has its phase in a first region between a most retarded angle and CA(1), the rotational speed of relative rotation between an output shaft of an electric motor and a sprocket is reduced at a reduction gear ratio R(1) to change the phase of the intake valve. In the case where the intake valve has its phase in a second region between CA(2) and a most advanced angle, the rotational speed of relative rotation is reduced at a reduction gear ratio R(2) to change the phase of the intake valve. As long as the rotational direction of relative rotation is the same, the phase of the intake valve is changed in the same direction for both of the first region between the most retarded angle and CA(1) and the second region between CA(2) and the most advanced angle.

    摘要翻译： 在进气门的相位处于最大延迟角和CA（1）之间的第一区域的情况下，电动机的输出轴与链轮之间的相对旋转速度以减速比R （1）改变进气阀的相位。 在进气门的相位在CA（2）和最高提前角度的第二区域的情况下，相对旋转的转速在减速比R（2）下减小，以改变进气门的相位 。 只要相对旋转的旋转方向相同，进气门的相位在最大延迟角和CA（1）之间的第一区域和CA（2）之间的第二区域的两个方向上沿相同方向改变， 和最先进的角度。

    VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREFOR
    10.
    发明申请
    VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREFOR 有权
    可变阀定时装置及其控制方法

    公开(公告)号：US20090194047A1

    公开(公告)日：2009-08-06

    申请号：US12303341

    申请日：2007-03-22

    申请人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

    发明人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

    IPC分类号： F01L1/34 ,  F02D41/00

    CPC分类号： F01L1/34 ,  F01L1/352

    摘要： An ECU executes a program including the steps of: controlling, when the phase of an intake valve is a phase advanced relative to a threshold value CA (FF) (NO in S106), an electric motor operating an intake VVT mechanism by feedback control (S202); and controlling, when the phase of the intake valve is a phase retarded relative to the threshold value CA (FF) (YES in S106), the electric motor by feed-forward control (S200). Under the feed-forward control, a duty command value is output that is smaller than an upper limit of a duty command value under the feedback control.

    摘要翻译： ECU执行程序，包括以下步骤：当进气门的相位相对于阈值CA（FF）相位提前（S106中为“否”）时，控制通过反馈控制来操作进气VVT机构的电动机 S202）; 并且当进气门的相位相对于阈值CA（FF）相位延迟（S106中为“是”）时，通过前馈控制来控制电动机（S200）。 在前馈控制下，输出比反馈控制下的占空指令值的上限小的占空指令值。