公开(公告)号：WO2008026043A2

公开(公告)日：2008-03-06

申请号：PCT/IB2007/002488

申请日：2007-08-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  URUSHIHATA, Haruyuki

Inventor： MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  URUSHIHATA, Haruyuki

IPC: F02D41/00 ,  F02D41/22 ,  F01L1/352

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

Abstract: An ECU (4000) transmits a pulsed operation command signal (SGl), indicating operation commands for an electric motor (2060) used as a VVT actuator, to an electric-motor EDU (4100). The electric-motor EDU (4100) 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 (SGI), and the rotational speed command value based on the frequency of the operation command signal (SGI). The electric-motor EDU (4100) controls the electric motor (2060) 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（4000）将表示用作VVT致动器的电动机（2060）的操作命令的脉冲操作命令信号（SG1）发送到电动机EDU（4100）。 电动马达EDU（4100）基于动作指令信号（SGI）的占空比来识别致动器应该操作的方向（致动器操作方向）和控制模式的组合，并且转速指令值 基于操作命令信号（SGI）的频率。 电动EDU（4100）根据控制命令控制电动机（2060）。 表示组合的占空比被设定为使得即使占空比被错误识别，也防止了关于致动器操作方向的错误识别，这种错误识别导致阀相位沿不期望的方向改变，并且即使致动器操作 方向被错误识别，相位变化的速度受到限制。

公开(公告)号：WO2007099770A1

公开(公告)日：2007-09-07

申请号：PCT/JP2007/052653

申请日：2007-02-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

Inventor： MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

IPC: F01L1/352

CPC classification number: F01L1/352

Abstract: An ECU executes a program including the step of stopping power supply to an electric motor if a phase of an intake valve is in a first region between the most retarded angle and CA (1) (YES at S108). In the case where the phase of the intake valve is in the first region, the rotational speed of relative rotation between the output shaft of the electric motor and a sprocket is reduced at reduction gear ratio R (1) thereby to vary the phase of the intake valve. In the case where the phase of the intake valve is in a second region between CA (2) and the most advanced angle, the rotational speed of the relative rotation is reduced at reduction gear ratio R (2) (R (1) > R (2)) thereby to vary the phase of the intake valve.

Abstract translation: 如果进气门的相位处于最大延迟角和CA（1）之间的第一区域，ECU执行包括停止向电动机供电的步骤的程序（S108为“是”）。 在进气门的相位处于第一区域的情况下，电动机的输出轴与链轮之间的相对旋转速度在减速比R（1）下减小，从而改变 进气阀。 在进气门的相位处于CA（2）和最大提前角之间的第二区域的情况下，相对旋转的转速在减速比R（2）（R（1）> R （2）），从而改变进气门的相位。

公开(公告)号：WO2008026041A3

公开(公告)日：2008-05-02

申请号：PCT/IB2007002483

申请日：2007-08-29

Applicant: TOYOTA MOTOR CO LTD ,  DENSO CORP ,  MASHIKI ZENICHIRO ,  INOUE YASUMICHI ,  TAKAGI NOBORU ,  URUSHIHATA HARUYUKI

Inventor： MASHIKI ZENICHIRO ,  INOUE YASUMICHI ,  TAKAGI NOBORU ,  URUSHIHATA HARUYUKI

IPC: F01L1/352 ,  F01L1/344 ,  F02D13/02

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

Abstract: The valve timing control is executed by an ECU (4000) that controls an engine and an electric-motor ECU (4100) that control an electric motor (2060). The ECU (4000) and the electric-motor EDU (4100) serve different functions. The ECU (4000) sets the target phase of an intake valve based on the engine operating state, and prepares the rotational speed command value (Nmref) for the electric motor (2060) that serves as an actuator such that a phase feedback control loop (7000), in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU (4100) forms a feedback control loop (7100) for the motor speed, in which the electric power (PW) supplied to the electric motor (2060) is controlled such that the electric motor (2060) rotates in accordance with the rotational speed command value (Nmref).

Abstract translation: 气门正时控制由控制发动机的ECU（4000）和控制电动机（2060）的电动机ECU（4100）执行。 ECU（4000）和电动机EDU（4100）具有不同的功能。 ECU（4000）基于发动机运转状态设定进气门的目标相位，并准备用作作动器的电动机（2060）的转速指令值（Nmref），使得相位反馈控制回路 7000），其中使进气阀相位与目标相位匹配。 电动机EDU（4100）形成用于电动机速度的反馈控制回路（7100），其中供给电动机（2060）的电力（PW）被控制成使得电动机（2060）按照 转速指令值（Nmref）。

公开(公告)号：WO2007142322A1

公开(公告)日：2007-12-13

申请号：PCT/JP2007/061595

申请日：2007-06-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  NOMURA, Mitsuhiro ,  URUSHIHATA, Haruyuki

Inventor： NOMURA, Mitsuhiro ,  URUSHIHATA, Haruyuki

IPC: F01L1/344 ,  F02D13/02 ,  F02B75/10

CPC classification number: F01L1/344 ,  F01L2001/0537 ,  F01L2103/02 ,  F01L2800/03 ,  F01L2820/032 ,  F02D13/0238 ,  Y02T10/18

Abstract: In valve timing control after issuance of an engine stop instruction (YES at S100) with a prescribed value (CA#) set as a target phase (S110), an ECU delays permission of an engine stop process (S130) within a prescribed time period (NO at step S140) while an intake valve phase (IV(q)) has not yet reached the target value (CA#) (NO at S120), so that a valve timing control operation is continued (S150) while the engine operation is continued in an idle state. After the lapse of a prescribed time period from the issuance of the engine stop instruction (YES at S140), however, the ECU permits the engine stop process (S130) no matter whether the intake valve phase has reached the target value (CA#) or not. As a result, the amount of valve timing that can be changed by the valve timing control in the engine stop operation can be increased, without causing any uncomfortable feeling of the driver.

Abstract translation: 在以规定值（CA＃）设定为目标相位（S110）的发动机停止指示（S100为“是”）后的气门正时控制中，ECU在规定时间内延迟发动机停止处理的许可（S130） （步骤S140中为“否”），而进气阀相位（IV（q））尚未达到目标值（CA＃）（S120为否），从而在发动机运转中继续进行气门正时控制动作（S150） 在空闲状态下继续。 然而，在从发动机停止指令发出规定的时间段（S140为“是”）之后经过了规定的时间段后，无论进气门相达到目标值（CA＃），ECU允许发动机停止处理（S130） 或不。 结果，可以增加可以通过发动机停止操作中的气门正时控制而改变的气门正时的量，而不会引起驾驶员的任何不适感。

公开(公告)号：WO2007122876A1

公开(公告)日：2007-11-01

申请号：PCT/JP2007/054118

申请日：2007-02-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  INOUE, Yasumichi ,  MASHIKI, Zenichiro ,  URUSHIHATA, Haruyuki

Inventor： INOUE, Yasumichi ,  MASHIKI, Zenichiro ,  URUSHIHATA, Haruyuki

IPC: F01L1/34 ,  F02D13/02

CPC classification number: F01L1/34 ,  F02D13/0219 ,  Y02T10/18

Abstract: 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.

Abstract translation: 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滞后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Tlmt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”），停止对致动器的供电。 因此，可以减少功耗，并且可以在参考位置学习时保护装置。

公开(公告)号：WO2007111095A1

公开(公告)日：2007-10-04

申请号：PCT/JP2007/054381

申请日：2007-02-28

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

Inventor： MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

IPC: F01L1/34 ,  F02D13/02

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 (IV(q)) 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 (S110). 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 (dIV(q)) by the VVT mechanism in accordance with the operation amount of actuator detected by a motor rotation angle signal is calculated successively (S120), and based on an accumulation of the amount of change (dIV(q)), the actual intake valve phase (IV(q)) is calculated, and the actual valve timing is detected (S130).

Abstract translation: 当发动机转速高时（S100为“是”），通过使用曲柄角信号和凸轮角检测出的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（IV（q）） 检测信号和实际气门正时（S110）。 当发动机转速低时（S100的判定为否），曲轴转角信号和凸轮角度信号不稳定时，根据VVT机构的运转量，凸轮轴旋转相位（dIV（q））的变化量 连续地计算由电动机旋转角度信号检测的致动器（S120），并且基于变化量（dIV（q））的积分，计算实际进气阀相位（IV（q）），实际阀 检测到定时（S130）。

公开(公告)号：WO2007099745A1

公开(公告)日：2007-09-07

申请号：PCT/JP2007/052075

申请日：2007-01-31

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

Inventor： MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki

IPC: F01L1/34 ,  F01L1/344 ,  F01L1/348

CPC classification number: F01L1/34 ,  F01L1/344 ,  F01L1/348

Abstract: 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).

Abstract translation: 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）。

公开(公告)号：WO2007063663A1

公开(公告)日：2007-06-07

申请号：PCT/JP2006/321599

申请日：2006-10-24

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  NIPPON SOKEN, INC. ,  INOUE, Yasumichi ,  MASHIKI, Zenichiro ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki ,  TAKENAKA, Akihiko ,  ISOBE, Eiji ,  INOHARA, Takayuki

Inventor： INOUE, Yasumichi ,  MASHIKI, Zenichiro ,  TAKAGI, Noboru ,  MORIYA, Yoshihito ,  URUSHIHATA, Haruyuki ,  TAKENAKA, Akihiko ,  ISOBE, Eiji ,  INOHARA, Takayuki

IPC: F01L1/352 ,  F01L1/356 ,  F01L1/34 ,  F02D13/02

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: 在进气阀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的方向改变， 和最先进的角度。

公开(公告)号：WO2008026043A3

公开(公告)日：2008-05-02

申请号：PCT/IB2007002488

申请日：2007-08-29

Applicant: TOYOTA MOTOR CO LTD ,  DENSO CORP ,  MASHIKI ZENICHIRO ,  INOUE YASUMICHI ,  TAKAGI NOBORU ,  URUSHIHATA HARUYUKI

Inventor： MASHIKI ZENICHIRO ,  INOUE YASUMICHI ,  TAKAGI NOBORU ,  URUSHIHATA HARUYUKI

IPC: F02D41/00 ,  F01L1/352 ,  F02D41/22

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

Abstract: An ECU (4000) transmits a pulsed operation command signal (SGl), indicating operation commands for an electric motor (2060) used as a VVT actuator, to an electric-motor EDU (4100). The electric-motor EDU (4100) 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 (SGI), and the rotational speed command value based on the frequency of the operation command signal (SGI). The electric-motor EDU (4100) controls the electric motor (2060) 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（4000）向电动机EDU（4100）发送指示用作VVT致动器的电动机（2060）的操作命令的脉冲操作指令信号（SG1）。 电动机EDU（4100）基于操作指令信号（SGI）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 基于操作指令信号（SGI）的频率。 电动机EDU（4100）根据控制命令控制电动机（2060）。 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。

公开(公告)号：WO2008026041A2

公开(公告)日：2008-03-06

申请号：PCT/IB2007/002483

申请日：2007-08-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION ,  MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  URUSHIHATA, Haruyuki

Inventor： MASHIKI, Zenichiro ,  INOUE, Yasumichi ,  TAKAGI, Noboru ,  URUSHIHATA, Haruyuki

IPC: F01L1/352 ,  F01L1/344 ,  F02D13/02

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

Abstract: The valve timing control is executed by an ECU (4000) that controls an engine and an electric-motor ECU (4100) that control an electric motor (2060). The ECU (4000) and the electric-motor EDU (4100) serve different functions. The ECU (4000) sets the target phase of an intake valve based on the engine operating state, and prepares the rotational speed command value (Nmref) for the electric motor (2060) that serves as an actuator such that a phase feedback control loop (7000), in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU (4100) forms a feedback control loop (7100) for the motor speed, in which the electric power (PW) supplied to the electric motor (2060) is controlled such that the electric motor (2060) rotates in accordance with the rotational speed command value (Nmref).

Abstract translation: 气门正时控制由控制发动机的ECU（4000）和控制电动机（2060）的电动机ECU（4100）执行。 ECU（4000）和电动机EDU（4100）具有不同的功能。 ECU（4000）基于发动机运转状态设定进气门的目标相位，并且为用作致动器的电动机（2060）准备转速命令值（Nmref），使得相位反馈控制回路（ 7000），其中使进气门相位与目标相位匹配。 电动机EDU（4100）形成用于电动机速度的反馈控制回路（7100），其中控制供应给电动机（2060）的电力（PW），使得电动机（2060）按照 与转速命令值（Nmref）。