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1. 发明授权

US08165784B2 Apparatus and method for learning reference position of variable valve unit 有权
标题翻译：用于学习可变气门单元参考位置的装置和方法
公开(公告)号：US08165784B2
公开(公告)日：2012-04-24
申请号：US11961699
申请日：2007-12-20
申请人： Naoki Okamoto , Masahiro Arai , Hatsuo Nagaishi , Yuko Nagaishi, legal representative , Takahiro Yoshino
发明人： Naoki Okamoto , Masahiro Arai , Hatsuo Nagaishi , Takahiro Yoshino
IPC分类号： B60T7/12
CPC分类号： F01L13/0026 , F01L1/047 , F01L1/3442 , F01L2013/0073 , F01L2800/09
摘要： In a variable valve unit provided with a variable valve mechanism that varies opening characteristics of an engine valve by rotary motion of a control shaft, an actuator that generates a rotary motion of the control shaft, a stopper restricting the rotary motion of the control shaft, and an angle sensor capable of outputting signals corresponding to angle positions of the control shaft, when the signal of the angle sensor at an angle position where the rotation of the control shaft is restricted by the stopper are learned, the actuator is controlled such that the control shaft is pressed against the stopper, after which drive torque of the actuator is reduced and with the drive torque reduced, signals of the then-angle sensor are stored.
摘要翻译：在具有通过控制轴的旋转运动来改变发动机气门的开启特性的可变阀机构的可变阀装置中，产生控制轴的旋转运动的致动器，限制控制轴的旋转运动的止动件，以及角度传感器，其能够输出对应于控制轴的角度位置的信号，当角度传感器在控制轴的旋转被止动器限制的角度位置处的信号被学习时，致动器被控制成使得控制轴被按压在制动器上，此后致动器的驱动转矩减小，随着驱动转矩的降低，存储了角度传感器的信号。

2. 发明授权

US07489999B2 Control apparatus and control method for variable valve apparatus 有权
标题翻译：可变气门装置的控制装置及控制方法
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。

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