公开(公告)号：US20090265077A1

公开(公告)日：2009-10-22

申请号：US12418872

申请日：2009-04-06

申请人： Haruyuki Urushihata

发明人： Haruyuki Urushihata

IPC分类号： F02D41/00 ,  F01L1/34

CPC分类号： F01L1/352 ,  F01L1/34 ,  F01L2800/00 ,  F01L2800/01 ,  F01L2820/032 ,  F01L2820/041 ,  F01L2820/042

摘要： A control device for a variable valve timing apparatus that changes valve timing of at least one of an intake valve and an exhaust valve of an internal combustion engine includes an actual valve timing computing unit and a valve timing controlling unit. The actual valve timing computing unit computes actual valve timing. The valve timing controlling unit controls the variable valve timing apparatus to maintain present valve timing during starting of the internal combustion engine before the actual valve timing computing unit becomes capable of computing the actual valve timing. The valve timing controlling unit controls the variable valve timing apparatus such that the actual valve timing becomes target valve timing during the starting of the internal combustion engine after the actual valve timing computing unit becomes capable of computing the actual valve timing.

摘要翻译： 用于改变内燃机的进气门和排气门中的至少一个的气门正时的可变气门正时装置的控制装置包括实际气门正时计算单元和气门正时控制单元。 实际气门正时计算单元计算实际气门正时。 气门正时控制单元控制可变气门正时装置，以在实际气门正时计算单元能够计算实际气门正时之前维持内燃机启动期间的当前气门正时。 气门正时控制单元控制可变气门正时装置，使得在实际气门正时计算单元能够计算实际气门正时之后，实际气门正时成为内燃机起动期间的目标气门正时。

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。

公开(公告)号：US20070221150A1

公开(公告)日：2007-09-27

申请号：US11690157

申请日：2007-03-23

申请人： Yasumichi INOUE ,  Zenichiro Mashiki ,  Haruyuki Urushihata

发明人： Yasumichi INOUE ,  Zenichiro Mashiki ,  Haruyuki Urushihata

IPC分类号： F01L1/34

CPC分类号： F01L1/352 ,  F01L2001/0537 ,  F01L2820/032

摘要： 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.

摘要翻译： 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

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。

公开(公告)号：US07188593B2

公开(公告)日：2007-03-13

申请号：US11129484

申请日：2005-05-16

申请人： Noriaki Iwase ,  Haruyuki Urushihata ,  Hisashi Iida

发明人： Noriaki Iwase ,  Haruyuki Urushihata ,  Hisashi Iida

IPC分类号： F01L1/34

CPC分类号： F02D13/0238 ,  F01L1/34 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2800/00 ,  F01L2820/041 ,  F01L2820/042 ,  F02D13/0207 ,  F02D41/1402 ,  F02D2041/001 ,  F02D2041/1433 ,  Y02T10/18

摘要： A control duty is obtained, which asymptotically makes the output of a control subject consistent with an output of a reference model. The output of the control subject simulates a dynamic characteristic of a variable valve timing controller, and the output of the reference model simulates an ideal input-output characteristic of the variable valve timing. The control duty makes a difference between the output of the reference model and an actual valve timing small enough. A parameter of a controller is consecutively corrected to make the difference small by means of a parameter correcting mechanism when the dynamic characteristic of the variable valve timing controller is varied due to a variation of an operating environment thereof so that the difference becomes large.

摘要翻译： 获得控制任务，其渐近地使控制主体的输出与参考模型的输出一致。 控制对象的输出模拟可变气门正时控制器的动态特性，参考模型的输出模拟可变气门正时的理想输入输出特性。 控制负载使参考模型的输出与实际阀正时间之间的差值小。 当可变气门正时控制器的动态特性由于其操作环境的变化而变化以使差异变大时，通过参数校正机构连续校正控制器的参数以使差异较小。

公开(公告)号：US20060207531A1

公开(公告)日：2006-09-21

申请号：US11376318

申请日：2006-03-16

申请人： Zenichiro Mashiki ,  Haruyuki Urushihata

发明人： Zenichiro Mashiki ,  Haruyuki Urushihata

IPC分类号： F01L9/04 ,  F01L1/34

CPC分类号： F01L1/344 ,  F01L13/0015 ,  F01L2001/0537 ,  F01L2800/01 ,  F01L2820/032

摘要： An electric variable valve timing mechanism and a starter are actuated by electricity supplied from a common battery. During an engine starting process, the starter is actuated, and an electronic control unit controls the electric variable valve timing mechanism. The electronic control unit limits the actuation of the electric variable valve timing mechanism on the condition that, during the engine starting process, the voltage value of the battery falls below a predetermined threshold value that degrades the operation of the starter. As a result, the engine is started in a stable manner.

摘要翻译： 电动可变气门正时机构和启动器由通用电池供电的电源启动。 在发动机启动过程中，起动器被启动，并且电子控制单元控制电动可变气门正时机构。 电子控制单元限制电动可变气门正时机构的致动，条件是在发动机启动过程中，电池的电压值降至低于启动器运行的预定阈值。 结果，发动机以稳定的方式启动。

公开(公告)号：US20050211207A1

公开(公告)日：2005-09-29

申请号：US10510765

申请日：2003-10-23

申请人： Haruyuki Urushihata ,  Hisashi Iida

发明人： Haruyuki Urushihata ,  Hisashi Iida

IPC分类号： F01L1/34 ,  F01L1/352 ,  F02D13/02

CPC分类号： F02D13/0238 ,  F01L1/024 ,  F01L1/34 ,  F01L1/352 ,  F01L13/02 ,  F01L2800/00 ,  F02D13/0249 ,  Y02T10/18

摘要： A required valve timing change rate Vreq is calculated so as to make a deviation D between a target valve timing VTtg and an actual valve timing VT small and then a required speed difference DMCRreq between a motor 26 and a camshaft 16 is calculated on a basis of the required valve timing change rate Vreq. When the deviation D is larger than a predetermined value, a required motor speed Rmreq is calculated by adding the required speed difference DMCRreq to a camshaft speed RC and a motor control value is calculated so as to control the motor speed RM to the required motor speed Rmreq. When the deviation D is not larger than the predetermined value, the camshaft speed RC is set as the required motor speed Rmreq and the motor control value is calculated so as to control the motor speed RM to the camshaft speed RC.

摘要翻译： 计算所需的气门正时变化率Vreq，以使目标气门正时VTtg与实际气门正时VT之间的偏差D小，然后根据电动机26与凸轮轴16之间的所需速度差DMCRreq计算 所需气门正时变化率Vreq。 当偏差D大于预定值时，通过将所需的速度差DMCRreq与凸轮轴速度RC相加来计算所需的电动机速度Rmreq，并且计算电动机控制值，以便将电动机速度RM控制为所需的电动机速度 Rmreq。 当偏差D不大于预定值时，凸轮轴速度RC被设定为所需的电动机速度Rmreq，并且计算电动机控制值，以将电动机速度RM控制到凸轮轴速度RC。

公开(公告)号：US06799553B1

公开(公告)日：2004-10-05

申请号：US10809706

申请日：2004-03-26

申请人： Akihiko Takenaka ,  Haruyuki Urushihata ,  Hideji Tani ,  Hideji Yoshida ,  Takayuki Inohara

发明人： Akihiko Takenaka ,  Haruyuki Urushihata ,  Hideji Tani ,  Hideji Yoshida ,  Takayuki Inohara

IPC分类号： F02D1304

CPC分类号： F01L1/352 ,  F01L1/022 ,  F01L1/024 ,  F01L2800/01

摘要： The variable valve timing controller controls the valve timing of the intake valve. The variable valve timing controller has a shaft, the stator fixed on the engine and generating the magnetic field around the shaft and rotational phase converter converting the torque applied to the shaft. When the valve timing is in the most delayed timing, the engine can be started. The rotational phase of this timing is called the feasible phase. When the stator stops generating the magnetic field, the load torque arise on the shaft. The rotational phase converter varies the rotational phase into the feasible phase with receiving the load torque from the shaft.

摘要翻译： 可变气门正时控制器控制进气门的气门正时。 可变气门正时控制器具有轴，定子固定在发动机上并在轴周围产生磁场，转动相转换器转换施加到轴上的转矩。 当气门正时处于最延迟的时机时，可启动发动机。 该定时的旋转相位称为可行阶段。 当定子停止产生磁场时，轴上产生负载转矩。 旋转相位转换器将旋转相位转换成可接受的相位，同时从轴接收负载转矩。

公开(公告)号：US08413624B2

公开(公告)日：2013-04-09

申请号：US12852273

申请日：2010-08-06

申请人： Haruyuki Urushihata

发明人： Haruyuki Urushihata

IPC分类号： F01L1/34

CPC分类号： F02D41/0002 ,  F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34463 ,  F01L2001/34476 ,  F01L2800/11 ,  F02D41/221 ,  F02D41/2464 ,  F02D2041/001 ,  Y02T10/42

摘要： A valve timing control apparatus for a valve timing adjusting unit that adjusts valve timing of an engine. The control apparatus learns a reference position. The control apparatus computes an actual phase based on the learned reference position. The control apparatus computes a target phase based on an engine operational state. The control apparatus controls a hydraulic actuator to perform a phase control based on a difference between the target phase and the actual phase. The control apparatus determines whether the lock mechanism is under an abnormal state. When the control apparatus determines that the lock mechanism is under the abnormal state, the control apparatus is prohibited from performing the phase control that uses the reference position.

摘要翻译： 一种用于调节发动机的气门正时的气门正时调节单元的气门正时控制装置。 控制装置学习参考位置。 控制装置基于所学习的基准位置来计算实际相位。 控制装置基于发动机运转状态来计算目标相位。 控制装置控制液压致动器，以基于目标相位和实际相位之间的差进行相位控制。 控制装置判定锁定机构是否处于异常状态。 当控制装置确定锁定机构处于异常状态时，禁止控制装置执行使用参考位置的相位控制。

公开(公告)号：US08165785B2

公开(公告)日：2012-04-24

申请号：US12279778

申请日：2007-02-07

申请人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Yoshihito Moriya ,  Haruyuki Urushihata

发明人： Zenichiro Mashiki ,  Yasumichi Inoue ,  Yoshihito Moriya ,  Haruyuki Urushihata

IPC分类号： F02D41/00 ,  F01L1/34

CPC分类号： F01L1/352

摘要： 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. 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 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 and the most advanced angle, the rotational speed of the relative rotation is reduced at reduction gear ratio R thereby to vary the phase of the intake valve.

摘要翻译： 如果进气门的相位处于最大延迟角和CA之间的第一区域，则ECU执行包括停止向电动机供电的步骤的程序。 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下降低，从而改变进气门的相位。 在进气门的相位处于CA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下降低，从而改变进气门的相位。