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1. 发明授权

US07765968B2 Variable valve timing system and method for controlling the same 有权
标题翻译：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。

2. 发明申请

US20100162980A1 VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREFOR 有权
标题翻译：可变阀定时装置及其控制方法
公开(公告)号：US20100162980A1
公开(公告)日：2010-07-01
申请号：US12280068
申请日：2007-01-31
申请人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
发明人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
IPC分类号： F01L1/34
CPC分类号： F01L1/34 , F01L1/344 , F01L1/348
摘要： An ECU executes a program including the steps of: detecting engine speed NE (S100); and stopping power supply to an electric motor of an intake VVT mechanism (S104), if engine speed NE is equal to or lower than a threshold value NE (0) (YES at S102).
摘要翻译： ECU执行包括以下步骤的程序：检测发动机转速NE（S100）; 如果发动机速度NE等于或低于阈值NE（0），则停止对进气VVT机构的电动机的供电（S104）（S102为是）。

3. 发明授权

US08181612B2 Variable valve timing apparatus and control method therefor 有权
标题翻译：可变气门正时装置及其控制方法
公开(公告)号：US08181612B2
公开(公告)日：2012-05-22
申请号：US12280068
申请日：2007-01-31
申请人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
发明人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
IPC分类号： F01L1/34
CPC分类号： F01L1/34 , F01L1/344 , F01L1/348
摘要： An ECU executes a program including the steps of: detecting engine speed NE (S100); and stopping power supply to an electric motor of an intake VVT mechanism (S104), if engine speed NE is equal to or lower than a threshold value NE (0) (YES at S102).
摘要翻译： ECU执行包括以下步骤的程序：检测发动机转速NE（S100）; 如果发动机速度NE等于或低于阈值NE（0），则停止对进气VVT机构的电动机的供电（S104）（S102为是）。

4. 发明授权

US07406933B2 Variable valve timing apparatus with reduced power consumption and control method thereof 有权
标题翻译：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。

5. 发明申请

US20070227482A1 VARIABLE VALVE TIMING APPARATUS WITH REDUCED POWER CONSUMPTION AND CONTROL METHOD THEREOF 有权
标题翻译：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。

6. 发明授权

US07685994B2 Variable valve timing apparatus and method of detecting valve phase thereof 有权
标题翻译：可变气门正时装置及其相位检测方法
公开(公告)号：US07685994B2
公开(公告)日：2010-03-30
申请号：US12295148
申请日：2007-02-28
申请人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
发明人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
IPC分类号： F02D19/00 , F01L1/34
CPC分类号： F01L1/352 , F01L2001/0537 , F01L2800/00 , F01L2800/12 , F01L2820/032 , F01L2820/041 , F01L2820/042 , F02D13/0219 , F02D41/009 , F02D2041/001 , Y02T10/18
摘要： When the engine speed is high (determination of YES at S100), actual intake valve phase is calculated based on rotation phase difference between rotation angles of crankshaft and camshaft, detected by using a crank angle signal and a cam angle signal, and actual valve timing is detected therefrom. When the engine speed is low (determination of NO at S100) and the crank angle signal and cam angle signal are unstable, an amount of change in camshaft rotation phase by the VVT mechanism in accordance with the operation amount of actuator detected by a motor rotation angle signal is calculated successively, and based on an accumulation of the amount of change, the actual intake valve phase is calculated, and the actual valve timing is detected.
摘要翻译：当发动机转速高时（S100为“是”），通过利用曲柄角度信号和凸轮角度信号检测曲轴和凸轮轴的旋转角度之间的旋转相位差来计算实际进气门相位，实际气门正时被检测。当发动机转速低时（S100确定为否），曲柄角信号和凸轮角度信号不稳定时，通过VVT机构根据由电动机旋转检测到的致动器的操作量引起的凸轮轴旋转相位的变化量连续计算角度信号，并且基于变化量的积累，计算实际进气门相位，并检测实际气门正时。

7. 发明申请

US20090194047A1 VARIABLE VALVE TIMING APPARATUS AND CONTROL METHOD THEREFOR 有权
标题翻译：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。

8. 发明申请

US20090101094A1 VARIABLE VALVE TIMING SYSTEM 有权
标题翻译：可变阀门时序系统
公开(公告)号：US20090101094A1
公开(公告)日：2009-04-23
申请号：US12159987
申请日：2007-08-29
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： F02D41/0002 , F01L1/352 , F01L1/356 , F02D41/221 , F02D2041/001 , F02D2041/2027 , Y02T10/42
摘要： An ECU transmits a pulsed operation command signal, indicating operation commands for an electric motor used as a VVT actuator, to an electric-motor EDU. The electric-motor EDU recognizes the combination of the direction in which the actuator should be operated (actuator operation direction) and the control mode based on the duty ratio of the operation command signal, and the rotational speed command value based on the frequency of the operation command signal. The electric-motor EDU controls the electric motor according to the control commands. The duty ratio indicating the combination is set such that even if the duty ratio is falsely recognized, a false recognition concerning the actuator operation direction is prevented, such false recognition causing the valve phase to change in an undesirable direction, and even if the actuator operation direction is falsely recognized, the rate of change in the phase is restricted.
摘要翻译： ECU向电动机EDU发送用于指示用作VVT致动器的电动机的操作命令的脉冲操作指令信号。电动机EDU基于操作指令信号的占空比和转速指令值，识别执行器应该被操作的方向（致动器操作方向）与控制模式的组合，操作指令信号。电动机EDU根据控制命令控制电动机。设定表示组合的占空比，使得即使占空比被错误识别，也可以防止对致动器操作方向的错误识别，这种错误识别导致阀相在不期望的方向上变化，并且即使致动器操作方向被错误地认定，阶段的变化率受到限制。

9. 发明授权

US08047169B2 Variable valve timing apparatus and control method therefor 有权
标题翻译：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。

10. 发明申请

US20090255510A1 VARIABLE VALVE TIMING APPARATUS AND METHOD OF DETECTING VALVE PHASE THEREOF 有权
标题翻译：可变阀门定时装置及其相位检测方法
公开(公告)号：US20090255510A1
公开(公告)日：2009-10-15
申请号：US12295148
申请日：2007-02-28
申请人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
发明人： Zenichiro Mashiki , Yasumichi Inoue , Noboru Takagi , Yoshihito Moriya , Haruyuki Urushihata
IPC分类号： F02D13/00 , F01L1/34
CPC分类号： F01L1/352 , F01L2001/0537 , F01L2800/00 , F01L2800/12 , F01L2820/032 , F01L2820/041 , F01L2820/042 , F02D13/0219 , F02D41/009 , F02D2041/001 , Y02T10/18
摘要： When the engine speed is high (determination of YES at S100), actual intake valve phase is calculated based on rotation phase difference between rotation angles of crankshaft and camshaft, detected by using a crank angle signal and a cam angle signal, and actual valve timing is detected therefrom. When the engine speed is low (determination of NO at S100) and the crank angle signal and cam angle signal are unstable, an amount of change in camshaft rotation phase by the VVT mechanism in accordance with the operation amount of actuator detected by a motor rotation angle signal is calculated successively, and based on an accumulation of the amount of change, the actual intake valve phase is calculated, and the actual valve timing is detected.
摘要翻译：当发动机转速高时（S100为“是”），通过利用曲柄角度信号和凸轮角度信号检测曲轴和凸轮轴的旋转角度之间的旋转相位差来计算实际进气门相位，实际气门正时被检测。当发动机转速低时（S100确定为否），曲柄角信号和凸轮角度信号不稳定时，通过VVT机构根据由电动机旋转检测到的致动器的操作量引起的凸轮轴旋转相位的变化量连续计算角度信号，并且基于变化量的积累，计算实际进气门相位，并检测实际气门正时。

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