公开(公告)号：US20080066700A1

公开(公告)日：2008-03-20

申请号：US11846983

申请日：2007-08-29

申请人： Zenichiro MASHIKI ,  Yasumichi INOUE ,  Masayoshi HATTORI ,  Noboru TAKAGI ,  Haruyuki URUSHIHATA ,  Masaomi INOUE ,  Yuuichi TAKEMURA ,  Toshikazu TANAKA

发明人： Zenichiro MASHIKI ,  Yasumichi INOUE ,  Masayoshi HATTORI ,  Noboru TAKAGI ,  Haruyuki URUSHIHATA ,  Masaomi INOUE ,  Yuuichi TAKEMURA ,  Toshikazu TANAKA

IPC分类号： F02D13/02 ,  F01L1/34 ,  F01L9/04

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

摘要： 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.

摘要翻译： 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：US20100126451A1

公开(公告)日：2010-05-27

申请号：US12693153

申请日：2010-01-25

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： F01L1/34

CPC分类号： F01L1/34

摘要： 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.

摘要翻译： 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：US20080053269A1

公开(公告)日：2008-03-06

申请号：US11846793

申请日：2007-08-29

申请人： Zenichiro MASHIKI ,  Yasumichi Inoue ,  Haruyuki Urushihata

发明人： Zenichiro MASHIKI ,  Yasumichi Inoue ,  Haruyuki Urushihata

IPC分类号： F16H53/04

CPC分类号： F01L1/352 ,  F01L2800/00 ,  F01L2820/032 ,  Y10T74/2102

摘要： 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.

摘要翻译： 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。