公开(公告)号：US07765968B2

公开(公告)日：2010-08-03

申请号：US11846983

申请日：2007-08-29

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

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

IPC: F01L1/34

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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07739988B2

公开(公告)日：2010-06-22

申请号：US11846793

申请日：2007-08-29

Applicant: Zenichiro Mashiki ,  Yasumichi Inoue ,  Haruyuki Urushihata

Inventor： Zenichiro Mashiki ,  Yasumichi Inoue ,  Haruyuki Urushihata

IPC: F01L1/34

CPC classification number: F01L1/352 ,  F01L2800/00 ,  F01L2820/032 ,  Y10T74/2102

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20100126451A1

公开(公告)日：2010-05-27

申请号：US12693153

申请日：2010-01-25

Applicant: Zenichiro MASHIKI ,  Yasumichi Inoue ,  Yoshihito Moriya ,  Haruyuki Urushihata

Inventor： Zenichiro MASHIKI ,  Yasumichi Inoue ,  Yoshihito Moriya ,  Haruyuki Urushihata

IPC: F01L1/34

CPC classification number: F01L1/34

Abstract: If it is necessary to rapidly change a phase of an intake camshaft and an intake VVT mechanism relatively slow in responsiveness as it is associated with an “A” bank of a V-type, 8-cylinder engine is in operation for at least a predetermined period of time, an ECU executes a program including the step of controlling intake VVT mechanisms to operate those associated with both the “A” bank and a “B” bank.

Abstract translation: 如果需要快速改变进气凸轮轴和进气VVT机构的相位相对较慢的响应性，因为它与V型的“A”组相关联，则8缸发动机正在运行至少预定的 在一段时间内，ECU执行包括控制进气VVT机构以操作与“A”组和“B”组两者相关联的操作的步骤的程序。

公开(公告)号：US20090255510A1

公开(公告)日：2009-10-15

申请号：US12295148

申请日：2007-02-28

Applicant: Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Yoshihito Moriya ,  Haruyuki Urushihata

Inventor： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Yoshihito Moriya ,  Haruyuki Urushihata

IPC: F02D13/00 ,  F01L1/34

CPC classification number: F01L1/352 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2800/12 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042 ,  F02D13/0219 ,  F02D41/009 ,  F02D2041/001 ,  Y02T10/18

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20090101095A1

公开(公告)日：2009-04-23

申请号：US12299780

申请日：2007-08-29

Applicant: Yasumichi Inoue ,  Masayoshi Hattori ,  Tsukasa Abe ,  Kenji Yamamoto

Inventor： Yasumichi Inoue ,  Masayoshi Hattori ,  Tsukasa Abe ,  Kenji Yamamoto

IPC: F01L1/34

CPC classification number: F01L1/344 ,  F01L1/352 ,  F01L2001/0537 ,  F01L2800/03 ,  F01L2820/032 ,  F02D13/0219 ,  Y02T10/18

Abstract: In an intake valve phase control after an engine stop command is issued, a stop-time phase is used as a target value. In the intake valve phase control, when the mode changeover condition is not satisfied, and an electric motor that serves as an actuator is not in a locked-state, the highest-speed mode, in which the amount of electric power supplied to the electric motor is fixed to the maximum value, is selected to reliably change the intake valve phase by a required amount. Then, the intake valve phase comes close to the stop-time phase and the mode changeover condition is satisfied, the control mode is changed from the highest-speed mode to the normal mode to set the control phase to the stop-time phase with higher accuracy, and the feedback control over the intake valve phase is executed.

Abstract translation: 在发出发动机停止命令之后的进气门相位控制中，使用停止时间相作为目标值。 在进气门相位控制中，当不满足模式切换条件和用作致动器的电动机不处于锁定状态时，提供给电动机的电力量的最高速度模式 电动机被固定为最大值，被选择为可靠地将进气门相位改变所需量。 然后，进气阀相位接近停止时间相位并且满足模式切换条件，控制模式从最高速模式改变到正常模式，以将控制相位设置为具有较高的停止时间相位 精度，并且执行对进气门相位的反馈控制。

公开(公告)号：US20070221150A1

公开(公告)日：2007-09-27

申请号：US11690157

申请日：2007-03-23

Applicant: Yasumichi INOUE ,  Zenichiro Mashiki ,  Haruyuki Urushihata

Inventor： Yasumichi INOUE ,  Zenichiro Mashiki ,  Haruyuki Urushihata

IPC: F01L1/34

CPC classification number: F01L1/352 ,  F01L2001/0537 ,  F01L2820/032

Abstract: In a variable valve timing apparatus in which a phase of an intake valve is changed at an amount of change according to a rotational speed of relative rotation between an electric motor as an actuator and a camshaft, the set upper limit value of the rotational speed of relative rotation and a coefficient Nθ of conversion from a required phase-change amount to the rotational speed of relative rotation ΔNm in each control period are set at smaller values at the time of engine stop than at the time of engine operation. As a result, the rotational speed of the electric motor in the VVT operation at the time of engine stop is reduced thereby reducing the operation sound of the variable valve timing apparatus.

Abstract translation: 在进气阀的相位根据作为致动器的电动机与凸轮轴之间的相对旋转速度的变化量而变化的可变气门正时装置中，设定上述转速的设定上限值 在每个控制周期中，相对旋转和从所需相变量到相对旋转角度DeltaNm的转速的系数不等于在发动机停止时比在发动机运转时更小的值。 结果，发动机停止时的VVT运转中的电动机的转速降低，从而减小了可变气门正时装置的运转声音。

公开(公告)号：US20070125332A1

公开(公告)日：2007-06-07

申请号：US11585200

申请日：2006-10-24

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

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

IPC: F01L1/34

CPC classification number: F01L1/34 ,  F01L1/352 ,  F01L1/356

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07073486B2

公开(公告)日：2006-07-11

申请号：US11166272

申请日：2005-06-27

Applicant: Mitsuhiro Nomura ,  Yasumichi Inoue

Inventor： Mitsuhiro Nomura ,  Yasumichi Inoue

IPC: F02M37/00

CPC classification number: F02D41/38 ,  F02D41/1401 ,  F02D41/3845 ,  F02D2041/1409 ,  F02D2041/3881 ,  F02D2250/31

Abstract: An engine ECU executes a program including the steps of, when it is necessary to calculate an integral term, employing an integral term for use when two pumps are operating for calculation of a duty when the number of operating pumps is 2 and storing the calculated integral term in a memory as the one for use in the case of two pumps operating, and employing an integral term for use when one pump is operating for calculation of a duty when the number of operating pumps is not 2 and storing the calculated integral term in the memory as the one for use in the case of one pump operating.

Abstract translation: 发动机ECU执行程序，包括以下步骤：当需要计算积分项时，当操作泵的数量为2时，使用两个泵用于计算占空比时使用的积分项，并存储所计算的积分 在作为两个泵运行的情况下使用的存储器中使用一个存储器，并且当操作泵的数量不是2时，当一个泵运行以计算占空比时使用积分项，并将计算的积分项存储在 在一个泵运行的情况下使用的存储器。

公开(公告)号：US08020527B2

公开(公告)日：2011-09-20

申请号：US12438955

申请日：2007-08-29

Applicant: Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

Inventor： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

IPC: F01L1/34

CPC classification number: F01L1/352 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2820/032 ,  F02D13/0219 ,  F02D13/0238 ,  F02D35/0007 ,  F02D2041/001 ,  F02D2041/1419 ,  Y02T10/18

Abstract: A valve timing control is executed by an ECU that controls an engine and an electric-motor ECU that controls an electric motor. The ECU and the electric-motor EDU serve different functions. The ECU sets the target phase of an intake valve based on the engine operating state, and prepares a rotational speed command value for the electric motor that serves as an actuator such that a phase feedback control loop, in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU forms a feedback control loop for the motor speed, in which the electric power supplied to the electric motor is controlled such that the electric motor rotates in accordance with the rotational speed command value.

Abstract translation: 气门正时控制由控制发动机的ECU和控制电动机的电动机ECU执行。 ECU和电动机EDU具有不同的功能。 ECU根据发动机工作状态设定进气门的目标相位，并为作为致动器的电动机准备转速指令值，使得使进气阀相位成为相位反馈控制回路 匹配目标阶段，形成。 电动机EDU形成用于电动机速度的反馈控制回路，其中控制供给到电动机的电力，使得电动机根据转速指令值旋转。

公开(公告)号：US07938088B2

公开(公告)日：2011-05-10

申请号：US12159987

申请日：2007-08-29

Applicant: Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

Inventor： Zenichiro Mashiki ,  Yasumichi Inoue ,  Noboru Takagi ,  Haruyuki Urushihata

IPC: F01L1/34

CPC classification number: F02D41/0002 ,  F01L1/352 ,  F01L1/356 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/2027 ,  Y02T10/42

Abstract: 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.

Abstract translation: 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根据控制指令控制电动机。 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。