公开(公告)号：US08942910B2

公开(公告)日：2015-01-27

申请号：US13618550

申请日：2012-09-14

申请人： Kentaro Mikawa

发明人： Kentaro Mikawa

IPC分类号： F01L1/34 ,  F02D45/00 ,  F01L1/04 ,  F02D41/00 ,  F01L1/352 ,  G01M15/04

CPC分类号： F01L1/04 ,  F01L1/352 ,  F01L2820/032 ,  F02D41/009 ,  F02D2041/001 ,  F02D2250/06 ,  Y02T10/142

摘要： Even when a crankshaft reversely rotates, a rotation phase of a camshaft can be accurately detected. A motor shaft rotation angle, a crankshaft forward rotation angle, a crankshaft reverse rotation angle, a final crankshaft rotation angle, a sprocket rotation angle of an electric VTC where a sprocket rotates at ½ rotation speed of the crankshaft and a stator of an electric motor are integrally rotated, a motor shaft rotation angle changing amount during a control period, a sprocket rotation angle changing amount, a motor shaft rotation angle changing amount, an intake camshaft rotation angle changing amount, and a current real rotation angle of the intake camshaft are calculated sequentially, and the VTC manipulated variable is computed so that the VTC real angle follows a VTC target angle.

摘要翻译： 即使当曲轴反向旋转时，也能够精确地检测凸轮轴的旋转相位。 电机轴旋转角度，曲轴正转角度，曲轴反转角度，最终曲轴旋转角度，链轮以曲轴的1/2转速旋转的电VTC的链轮旋转角度和电动机的定子 一体旋转，控制期间的电动机轴旋转角度变化量，链轮旋转角度变化量，电动机轴旋转角度变化量，进气凸轮轴旋转角度变化量和进气凸轮轴的当前实际旋转角度分别为 并且计算VTC操作变量，使得VTC实角遵循VTC目标角度。

公开(公告)号：US09151239B2

公开(公告)日：2015-10-06

申请号：US13615733

申请日：2012-09-14

申请人： Kentaro Mikawa

发明人： Kentaro Mikawa

IPC分类号： F02D41/00 ,  F02D13/02 ,  F02N19/00 ,  F01L1/344 ,  F01L1/352

CPC分类号： F02D41/009 ,  F01L1/344 ,  F01L1/352 ,  F01L2820/032 ,  F02D13/0238 ,  F02D2041/0095 ,  F02N19/004 ,  F02N2019/008 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/42

摘要： Valve timing is held to a position close to a target value as much as possible while suppressing control errors of valve timing even though a crankshaft rotates in reverse. In an internal combustion engine which controls the valve timing by a variable valve timing mechanism (an electric VTC) driven by an electric motor, an intake valve timing is controlled after an output of an engine stop command such that: when the engine rotates in a forward direction, a real valve timing (a VTC real angle θr) detected by a sensor is converged to a target valve timing (a VTC target angle θtrg) advanced for the time of start; and when the engine rotates in a reverse direction, a manipulated variable of the electric VTC is set so that the VTC real angle θr is held to the VTC real angle θr detected just before the detection of the reverse rotation.

摘要翻译： 即使曲轴相反地旋转，也能尽可能地将气门正时保持在靠近目标值的位置，同时抑制气门正时的控制误差。 在通过由电动机驱动的可变气门正时机构（电VTC）来控制气门正时的内燃机中，在发动机停止指令输出后控制进气门正时，使得当发动机转速为 传感器检测到的实际气门正时（VTC实角＆amp; t）r被收敛到启动时提前的目标气门正时（VTC目标角＆amp; ttg）; 并且当发动机沿相反方向旋转时，设置电VTC的操纵变量，使得VTC实角＆amp; t被保持为在检测到反向旋转之前的VTC实际角度; r被检测到。

公开(公告)号：US20130080027A1

公开(公告)日：2013-03-28

申请号：US13615733

申请日：2012-09-14

申请人： Kentaro MIKAWA

发明人： Kentaro MIKAWA

IPC分类号： F01L1/344

CPC分类号： F02D41/009 ,  F01L1/344 ,  F01L1/352 ,  F01L2820/032 ,  F02D13/0238 ,  F02D2041/0095 ,  F02N19/004 ,  F02N2019/008 ,  Y02T10/142 ,  Y02T10/18 ,  Y02T10/42

摘要： Valve timing is held to a position close to a target value as much as possible while suppressing control errors of valve timing even though a crankshaft rotates in reverse. In an internal combustion engine which controls the valve timing by a variable valve timing mechanism (an electric VTC) driven by an electric motor, an intake valve timing is controlled after an output of an engine stop command such that: when the engine rotates in a forward direction, a real valve timing (a VTC real angle θr) detected by a sensor is converged to a target valve timing (a VTC target angle θtrg) advanced for the time of start; and when the engine rotates in a reverse direction, a manipulated variable of the electric VTC is set so that the VTC real angle θr is held to the VTC real angle θr detected just before the detection of the reverse rotation.

摘要翻译： 即使曲轴相反地旋转，也能尽可能地将气门正时保持在靠近目标值的位置，同时抑制气门正时的控制误差。 在通过由电动机驱动的可变气门正时机构（电VTC）来控制气门正时的内燃机中，在发动机停止指令输出后控制进气门正时，使得当发动机转速为 传感器检测到的实际气门正时（VTC实角＆amp; t）r被收敛到启动时提前的目标气门正时（VTC目标角＆amp; ttg）; 并且当发动机沿相反方向旋转时，设置电VTC的操纵变量，使得VTC实角＆amp; t被保持为在检测到反向旋转之前的VTC实际角度; r被检测到。

公开(公告)号：US08091523B2

公开(公告)日：2012-01-10

申请号：US12471612

申请日：2009-05-26

申请人： Kentaro Mikawa ,  Naoki Okamoto

发明人： Kentaro Mikawa ,  Naoki Okamoto

IPC分类号： F01L1/34

CPC分类号： F01L1/344

摘要： The application provides a control apparatus of a variable valve timing mechanism capable of converging valve timing to a target value with good responsiveness as well as with high accuracy when an engine starts. In the state where the engine starts, the variable valve timing mechanism is driven to a target value at the engine start by a second manipulated variable corresponding to a maximum variation speed of valve timing. Valve timing is estimate in the state where the variable valve timing mechanism is driven by the second manipulated variable, and when the estimated valve timing reaches the target value, a manipulated variable is switched from the second manipulated variable to a first manipulated variable which is a feedforward manipulated variable or to the first manipulated variable which is a value obtained by adding the feedforward manipulated variable and a feedback manipulated variable.

摘要翻译： 该应用提供了一种可变气门正时机构的控制装置，其能够以良好的响应性以及当发动机起动时具有高精度将气门正时会聚到目标值。 在发动机启动的状态下，可变气门正时机构在发动机起动时被驱动到对应于气门正时的最大变化速度的第二操作变量的目标值。 在可变气门正时机构由第二操作变量驱动的状态下估计气门正时，并且当估计气门正时达到目标值时，将操作变量从第二操作变量切换为第一操作变量 前馈操作变量或第一操纵变量，其是通过将前馈操作变量和反馈操作变量相加而获得的值。

公开(公告)号：US20090288621A1

公开(公告)日：2009-11-26

申请号：US12471612

申请日：2009-05-26

申请人： Kentaro Mikawa ,  Naoki Okamoto

发明人： Kentaro Mikawa ,  Naoki Okamoto

IPC分类号： F01L1/34

CPC分类号： F01L1/344

摘要： The application provides a control apparatus of a variable valve timing mechanism capable of converging valve timing to a target value with good responsiveness as well as with high accuracy when an engine starts. In the state where the engine starts, the variable valve timing mechanism is driven to a target value at the engine start by a second manipulated variable corresponding to a maximum variation speed of valve timing. Valve timing is estimate in the state where the variable valve timing mechanism is driven by the second manipulated variable, and when the estimated valve timing reaches the target value, a manipulated variable is switched from the second manipulated variable to a first manipulated variable which is a feedforward manipulated variable or to the first manipulated variable which is a value obtained by adding the feedforward manipulated variable and a feedback manipulated variable.

摘要翻译： 该应用提供了一种可变气门正时机构的控制装置，其能够以良好的响应性以及当发动机起动时具有高精度将气门正时会聚到目标值。 在发动机启动的状态下，可变气门正时机构在发动机起动时被驱动到对应于气门正时的最大变化速度的第二操作变量的目标值。 在可变气门正时机构由第二操作变量驱动的状态下估计气门正时，并且当估计气门正时达到目标值时，将操作变量从第二操作变量切换为第一操作变量 前馈操作变量或第一操纵变量，其是通过将前馈操作变量和反馈操作变量相加而获得的值。

公开(公告)号：US07489999B2

公开(公告)日：2009-02-10

申请号：US11962994

申请日：2007-12-21

申请人： Ryo Miyakoshi ,  Kentaro Mikawa ,  Masahiro Arai ,  Yuko Nagaishi, legal representative ,  Takahiro Yoshino

发明人： Hatsuo Nagaishi

IPC分类号： B60T7/12 ,  F02D13/04

CPC分类号： F02D13/0223 ,  F02D41/0082 ,  F02D41/18 ,  F02D41/2441 ,  F02D41/2464 ,  F02D2041/001 ,  Y02T10/18

摘要： In an engine provided with a valve lift amount variable mechanism and a center phase variable mechanism for an intake valve, a region between a region where a flow rate of an intake air passing through the intake valve reaches a sonic speed and a region where an intake air amount does not substantially change relative to a change in an opening area of the intake valve is made to be a learning region. Then, in order to resolve an error in intake air amount in the learning region, a correction value for correcting control process of the valve lift amount variable mechanism is learned. When the learning of the correction value is converged, the learning correction value is corrected with an occupied rate of the valve lift amount variable mechanism in the influence ratio between influences on the two mechanisms in relation to the error. Further, based on the error occurring in a state corrected with the learning correction value which is corrected with the influence ratio, a correction value for correcting control process of the center phase variable mechanism is learned.

摘要翻译： 在设置有气门升程量可变机构的发动机和用于进气门的中心相位可变机构的情况下，通过进气门的进气流量达到声速的区域与进气口的区域之间的区域 空气量相对于进气门的开口面积的变化基本上不变化为学习区域。 然后，为了解决学习区域中的进气量的误差，可以获得用于校正气门升程量可变机构的控制处理的修正值。 当校正值的学习收敛时，以与该误差相关的两个机构的影响之间的影响比例，以阀升程量可变机构的占有率来校正学习校正值。 此外，基于以用影响比率校正的学习校正值进行校正的状态下发生的错误，可以获得校正中心相位可变机构的控制处理的校正值。

公开(公告)号：US20080167785A1

公开(公告)日：2008-07-10

申请号：US11962994

申请日：2007-12-21

申请人： Ryo MIYAKOSHI ,  Kentaro Mikawa ,  Masahiro Arai ,  Hatsuo Nagaishi ,  Takahiro Yoshino ,  Yuko Nagaishi

发明人： Ryo MIYAKOSHI ,  Kentaro Mikawa ,  Masahiro Arai ,  Hatsuo Nagaishi ,  Takahiro Yoshino ,  Yuko Nagaishi

IPC分类号： F02D41/00

CPC分类号： F02D13/0223 ,  F02D41/0082 ,  F02D41/18 ,  F02D41/2441 ,  F02D41/2464 ,  F02D2041/001 ,  Y02T10/18

摘要： In an engine provided with a valve lift amount variable mechanism and a center phase variable mechanism for an intake valve, a region between a region where a flow rate of an intake air passing through the intake valve reaches a sonic speed and a region where an intake air amount does not substantially change relative to a change in an opening area of the intake valve is made to be a learning region. Then, in order to resolve an error in intake air amount in the learning region, a correction value for correcting control process of the valve lift amount variable mechanism is learned. When the learning of the correction value is converged, the learning correction value is corrected with an occupied rate of the valve lift amount variable mechanism in the influence ratio between influences on the two mechanisms in relation to the error. Further, based on the error occurring in a state corrected with the learning correction value which is corrected with the influence ratio, a correction value for correcting control process of the center phase variable mechanism is learned.

摘要翻译： 在设置有气门升程量可变机构的发动机和用于进气门的中心相位可变机构的情况下，通过进气门的进气流量达到声速的区域与进气口的区域之间的区域 空气量相对于进气门的开口面积的变化基本上不变化为学习区域。 然后，为了解决学习区域中的进气量的误差，可以获得用于校正气门升程量可变机构的控制处理的修正值。 当校正值的学习收敛时，以与该误差相关的两个机构的影响之间的影响比例，以阀升程量可变机构的占有率来校正学习校正值。 此外，基于以用影响比率校正的学习校正值进行校正的状态下发生的错误，可以获得校正中心相位可变机构的控制处理的校正值。

公开(公告)号：US20130068185A1

公开(公告)日：2013-03-21

申请号：US13618550

申请日：2012-09-14

申请人： Kentaro MIKAWA

发明人： Kentaro MIKAWA

IPC分类号： F01L1/04

CPC分类号： F01L1/04 ,  F01L1/352 ,  F01L2820/032 ,  F02D41/009 ,  F02D2041/001 ,  F02D2250/06 ,  Y02T10/142

摘要： Even when a crankshaft reversely rotates, a rotation phase of a camshaft can be accurately detected. A motor shaft rotation angle, a crankshaft forward rotation angle, a crankshaft reverse rotation angle, a final crankshaft rotation angle, a sprocket rotation angle of an electric VTC where a sprocket rotates at ½ rotation speed of the crankshaft and a stator of an electric motor are integrally rotated, a motor shaft rotation angle changing amount during a control period, a sprocket rotation angle changing amount, a motor shaft rotation angle changing amount, an intake camshaft rotation angle changing amount, and a current real rotation angle of the intake camshaft are calculated sequentially, and the VTC manipulated variable is computed so that the VTC real angle follows a VTC target angle.

摘要翻译： 即使当曲轴反向旋转时，也能够精确地检测凸轮轴的旋转相位。 电机轴旋转角度，曲轴正转角度，曲轴反转角度，最终曲轴旋转角度，链轮以曲轴的1/2转速旋转的电VTC的链轮旋转角度和电动机的定子 一体旋转，控制期间的电动机轴旋转角度变化量，链轮旋转角度变化量，电动机轴旋转角度变化量，进气凸轮轴旋转角度变化量和进气凸轮轴的当前实际旋转角度分别为 并且计算VTC操作变量，使得VTC实角遵循VTC目标角度。