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    Variable valve timing apparatus with reduced power consumption and control method thereof
    5.
    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
    6.
    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 thereof
    7.
    发明授权
    Variable valve timing apparatus and control method thereof 有权
    可变气门正时装置及其控制方法

    公开(公告)号：US08165778B2

    公开(公告)日：2012-04-24

    申请号：US12279299

    申请日：2007-02-26

    申请人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Haruyuki Urushihata

    发明人： Yasumichi Inoue ,  Zenichiro Mashiki ,  Haruyuki Urushihata

    IPC分类号： F02D13/02 ,  F01L1/34 ,  G06F19/00 ,  G08B21/18

    CPC分类号： F01L1/34 ,  F02D13/0219 ,  Y02T10/18

    摘要： At the time of reference position learning for ensuring accuracy in detecting a valve timing, an operation amount of an actuator is set such that intake valve phase changes to a position of most retarded angle as a reference phase. When the intake valve phase reaches the most retarded angle and the change in the intake valve phase stops (YES at S150), it is determined that the intake valve phase has reached the reference phase and the learning is terminated normally. If the learning operation does not end normally even after the time lapse from the start of learning exceeds a limit time Tlmt, the reference position learning is terminated forcibly (YES at S170), and power supply to the actuator is stopped. Thus, power consumption can be reduced and the apparatus can be protected at the time of reference position learning.

    摘要翻译： 在确定气门正时检测精度时的基准位置学习时，将致动器的操作量设定为使得进气门相位变为大部分滞后角位置作为基准相位。 当进气阀相达到最大延迟角并且进气阀相位的变化停止时（S150为“是”），判断为进气阀相位已达到基准相位，并且学习正常结束。 即使在从学习开始的时间经过超过限制时间T1mt之后，即使学习动作不能正常结束，参考位置学习被强制终止（S170为“是”），停止向致动器供电。 因此，可以减少功耗，并且可以在参考位置学习时保护装置。

    Variable valve timing apparatus and control method therefor
    8.
    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
    9.
    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 system and method for controlling the same
    10.
    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：US07739988B2

    公开(公告)日：2010-06-22

    申请号：US11846793

    申请日：2007-08-29

    申请人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Haruyuki Urushihata

    发明人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Haruyuki Urushihata

    IPC分类号： F01L1/34

    CPC分类号： F01L1/352 ,  F01L2800/00 ,  F01L2820/032 ,  Y10T74/2102

    摘要： An intake valve phase setting unit sets the target valve phase used in the variable valve timing control based on the engine operating state, and a control target value setting unit sets the control target value based on the target valve phase. An actuator operation amount setting unit prepares the rotational speed command value for an electric motor that serves as an actuator of a variable valve timing system based on the deviation of the current value from the control target value. A phase change rate control unit sets the rate of change in the valve phase to a lower value when the variable valve timing control moves the valve phase away from the reference phase (the phase when the engine is idling) at which combustion takes place stably in engine than when the variable valve timing control causes the valve phase to the reference phase.

    摘要翻译： 进气阀相位设定单元基于发动机运转状态设定在可变气门正时控制中使用的目标阀相位，并且控制目标值设定单元基于目标阀相位来设定控制目标值。 致动器操作量设定单元根据当前值与控制目标值的偏差来准备用作可变气门正时系统的致动器的电动机的转速指令值。 当可变气门正时控制将阀相位从稳定地发生燃烧的参考相位（发动机空转的相位）移动时，相变速度控制单元将阀相位的变化率设定为较低值 发动机比可变气门正时控制引起阀相到参考相位。