公开(公告)号：US20110030633A1

公开(公告)日：2011-02-10

申请号：US12852283

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： F01L1/3442 ,  F01L2001/34426 ,  F01L2001/34453 ,  F01L2001/34463 ,  F01L2001/34476

摘要： A valve timing adjuster includes a first rotor, a second rotor, a control valve, and a lock mechanism. The lock mechanism includes a retard limitation pin and an advance limitation pin, each of which is provided to the second rotor. The lock mechanism includes a retard limitation groove and an advance limitation groove, each of which is formed to the first rotor. The retard limitation groove and the advance limitation groove are designed to limit the displacement of the retard limitation pin in the retard direction and simultaneously limit the displacement of the advance limitation pin in the advance direction in order to lock the first rotor and the second rotor. The valve timing adjuster alternately increases the oil pressure in the retard chamber and the oil pressure in the advance chamber when the lock of the first and second rotors is released.

摘要翻译： 气门正时调节器包括第一转子，第二转子，控制阀和锁定机构。 锁定机构包括延迟限制销和前进限制销，每个都设置在第二转子上。 锁定机构包括延迟限制槽和前进限制槽，每个都形成在第一转子上。 延迟限制槽和前进限制槽被设计成限制延迟限制销在延迟方向上的位移，同时限制前进限制销在前进方向上的位移，以便锁定第一转子和第二转子。 当释放第一和第二转子的锁定时，气门正时调节器交替地增加延迟室中的油压和提前室中的油压。

公开(公告)号：US20110000449A1

公开(公告)日：2011-01-06

申请号：US12828793

申请日：2010-07-01

申请人： Haruyuki URUSHIHATA ,  Minoru Wada

发明人： Haruyuki URUSHIHATA ,  Minoru Wada

IPC分类号： F01L1/34

CPC分类号： F01L1/3442 ,  F01L1/024 ,  F01L2001/3443 ,  F01L2001/34469 ,  F01L2001/34476 ,  F01L2800/01

摘要： A VVT has a movable restriction member and a restriction slot. When the restriction member is in a projected position, the VVT is variable in a restricted range to which the restriction member can be rotatable within the restriction slot. When the restriction member is in a retracted position, the VVT is variable in a range wider than the restricted range. When a condition where the restriction member shall be projected is satisfied, if the variable range of the VVT reaches beyond the restricted range, the device determines that the restriction member is stuck at the retracted position. When a condition where the restriction member shall be retracted is satisfied, if the variable range of the VVT is restricted in the restricted range, the device determines that the restriction member is stuck at the projected position.

摘要翻译： VVT具有可动限制构件和限制槽。 当限制构件处于突出位置时，VVT可以在限制构件能够在限制槽内旋转的限制范围内变化。 当限制构件处于缩回位置时，VVT可在比限制范围更宽的范围内变化。 当满足限制部件投射的条件时，如果VVT的可变范围超过限制范围，则装置判断为限制部件被卡在缩回位置。 当满足限制件缩回的条件时，如果VVT的可变范围被限制在限制范围内，则该装置确定限制件被卡在投影位置。

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：US20120073531A1

公开(公告)日：2012-03-29

申请号：US13210771

申请日：2011-08-16

申请人： Haruyuki URUSHIHATA

发明人： Haruyuki URUSHIHATA

IPC分类号： F01L1/344

CPC分类号： F01L1/3442 ,  F01L2001/34423 ,  F01L2001/34426 ,  F01L2001/34463

摘要： When a variable valve timing device controls an oil pressure control valve in a manner that a VCT phase is locked at a middle lock phase, an advance chamber and a retard chamber are made to communicate with each other, so that oil is filled into both of the advance chamber and the retard chamber when the oil pressure control valve supplies oil to one of the advance chamber and the retard chamber in an oil filling mode. An oil pump supplies oil to the oil pressure control valve, and is controlled to have an oil flow rate that is equal to or larger than a predetermined value in the oil filling mode.

摘要翻译： 当可变气门正时装置以VCT相锁定在中间锁定相位的方式控制油压控制阀时，使前进室和延迟室彼此连通，从而将油充入 当油压控制阀以注油模式向预提室和延迟室中的一个供给油时，提前室和延迟室。 油泵向油压控制阀供给油，并且在油灌注模式中被控制为具有等于或大于预定值的油流量。

公开(公告)号：US20110061619A1

公开(公告)日：2011-03-17

申请号：US12878337

申请日：2010-09-09

申请人： Haruyuki URUSHIHATA

发明人： Haruyuki URUSHIHATA

IPC分类号： F01L1/34

CPC分类号： F01L1/3442 ,  F01L2001/34463 ,  F01L2001/34469 ,  F02D13/02 ,  F02D41/0002 ,  F02D41/1401 ,  F02D2041/001 ,  F02D2041/142 ,  F02D2041/1422 ,  Y02T10/18 ,  Y02T10/42

摘要： A variable valve timing controller for an internal combustion engine includes a hydraulic variable valve timing unit, a lock pin, and a hydraulic control valve. The lock pin is configured to lock the VCT phase at an intermediate lock position. The variable valve timing controller controls a valve drive electric current that is used for actuating the hydraulic control valve. The controller controls the valve drive electric current based on a first control characteristic in the operation of the hydraulic control valve under a first control range. The controller controls the valve drive electric current based on a second control characteristic in the operation of the hydraulic control valve under a second control range. The first control characteristic is different from the second control characteristic.

摘要翻译： 用于内燃机的可变气门正时控制器包括液压可变气门正时单元，锁定销和液压控制阀。 锁定销配置为将VCT相位锁定在中间锁定位置。 可变气门正时控制器控制用于启动液压控制阀的阀驱动电流。 控制器基于在第一控制范围内的液压控制阀的操作中的第一控制特性来控制阀驱动电流。 控制器在第二控制范围内基于液压控制阀的操作中的第二控制特性来控制阀驱动电流。 第一控制特性与第二控制特性不同。

公开(公告)号：US20110035134A1

公开(公告)日：2011-02-10

申请号：US12852273

申请日：2010-08-06

申请人： Haruyuki URUSHIHATA

发明人： Haruyuki URUSHIHATA

IPC分类号： F02D41/00 ,  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。