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1. 发明授权

US06366441B1 Electromagnetic actuator 失效
标题翻译：电磁执行器
公开(公告)号：US06366441B1
公开(公告)日：2002-04-02
申请号：US09534054
申请日：2000-03-24
申请人： Hidetaka Ozawa , Yasuo Shimizu , Chihaya Sugimoto , Minoru Nakamura , Jirou Fujimoto , Toshihiro Yamaki
发明人： Hidetaka Ozawa , Yasuo Shimizu , Chihaya Sugimoto , Minoru Nakamura , Jirou Fujimoto , Toshihiro Yamaki
IPC分类号： H01H4728
CPC分类号： F01L9/04 , F01L2009/049 , H01H47/325
摘要： An electromagnetic actuator is equipped with two springs which act in opposite directions, and an armature that is connected to the springs and is supported in an unactivated state in a neutral position provided by the two springs. The armature is coupled to a mechanical element such as a valve of an engine. The actuator includes a pair of electromagnets that drive the armature between a first terminal position and a second terminal position, and a power supply device that controls the voltage supplied to the electromagnet attracting the armature to a constant voltage when the armature is driven from one of the terminal positions to the other terminal position. The voltage supplied to the electromagnets is maintained at a constant value and the larger current flows in the larger is the gap between the armature and the yoke and smaller is the counter electromotive force.
摘要翻译：电磁致动器配备有沿相反方向作用的两个弹簧，以及连接到弹簧的电枢，并且在由两个弹簧提供的中立位置处于未激活状态下被支撑。电枢联接到诸如发动机的阀的机械元件。致动器包括在第一端子位置和第二端子位置之间驱动衔铁的一对电磁体，以及电源装置，当电枢从电枢中的一个驱动时，控制向电磁体提供的电压将电枢吸引到恒定电压终端位置到另一个终端位置。提供给电磁体的电压保持在恒定值，并且较大的电流流过电枢和磁轭之间的间隙，反电动势较小。

2. 发明授权

US06925975B2 Controller for controlling an electromagnetic actuator 失效
标题翻译：用于控制电磁执行器的控制器
公开(公告)号：US06925975B2
公开(公告)日：2005-08-09
申请号：US10068031
申请日：2002-02-06
申请人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura , Toshihiro Yamaki , Yasuo Shimizu
发明人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura , Toshihiro Yamaki , Yasuo Shimizu
IPC分类号： F01L9/04 , F02D13/02 , F02D41/20 , F16K31/06 , H01F7/16 , H01F7/18
CPC分类号： F01L9/04 , F01L2009/0436 , F02D13/0207 , F02D13/0253 , F02D41/20 , F02D2041/001 , Y02T10/18
摘要： A controller for an electromagnetic actuator comprises a pair of springs acting on opposite directions, and an armature connected to the springs. The armature is held in a neutral position given by the springs when the armature is not activated. The actuator also comprises a pair of electromagnets for driving the armature between two end positions. In response to a release of the armature held in one of the end positions, the controller applies brake to the armature according to a load condition of the armature. In high-load conditions, the valve can surely be opened without additional electric power. In low-load conditions, the armature is prevented from colliding with a yoke of the electromagnet. The application of brake includes over-excitation operation, flywheel operation and suspension of power supply. In the over-excitation operation, voltage is applied to the electromagnet corresponding to one of the end positions from which the armature is released for a first period. The first period may be determined according to a load condition of the armature. After the first period elapses, flywheel current is supplied to the electromagnet for a second period. After the second period elapses, power supply to the electromagnet is suspended. Appropriate combination of over-excitation operation, flywheel operation and suspension of power supply allows the braking force to be adjusted according to a load condition of the armature.
摘要翻译：用于电磁致动器的控制器包括作用在相反方向上的一对弹簧和连接到弹簧的电枢。当电枢未激活时，电枢被保持在弹簧给定的中立位置。致动器还包括用于在两个端部位置之间驱动电枢的一对电磁体。响应于保持在一个端部位置的电枢的释放，控制器根据电枢的负载条件向电枢施加制动。在高负载条件下，阀门可以无需额外的电力就能打开。在低负载条件下，防止电枢与电磁铁的轭碰撞。制动器的应用包括过励磁运行，飞轮运行和电源暂停。在过激励操作中，电压被施加到对应于电枢被释放第一周期的端部位置之一的电磁体。可以根据电枢的负载条件来确定第一周期。经过第一个时间段后，飞轮电流供应给电磁铁第二个周期。第二个时期过后，电磁铁供电暂停。过励磁运行，飞轮运行和电源暂停的适当组合允许根据电枢的负载条件来调节制动力。

3. 发明授权

US06690563B2 Electromagnetic actuator controller 失效
标题翻译：电磁执行器控制器
公开(公告)号：US06690563B2
公开(公告)日：2004-02-10
申请号：US10052724
申请日：2002-01-18
申请人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura , Toshihiro Yamaki
发明人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura , Toshihiro Yamaki
IPC分类号： H01H900
CPC分类号： F01L9/04 , H01F7/1844
摘要： A controller for an electromagnetic actuator comprises a pair of spring acting in opposite directions, and an armature coupled to a mechanical element. The armature is connected to the springs and held in a neutral position given by the springs when the actuator is not activated. The actuator includes a pair of electromagnets for driving the armature between two end positions. The controller includes voltage application means for applying voltage to an electromagnet providing one end position for a first predetermined period so as to attract the armature to the end position. The controller also includes a peak current detector for detecting the peak of current flowing through the electromagnet in the first predetermined period. In accordance with the peak value, a decision means decides the application period of voltage that is to be applied to the electromagnet after the first application period has elapsed. Thus, the armature can make a stable seating at a controlled speed without generating substantial noise.
摘要翻译：用于电磁致动器的控制器包括沿相反方向作用的一对弹簧和联接到机械元件的电枢。当致动器未被激活时，电枢连接到弹簧并保持在弹簧给定的中立位置。致动器包括用于在两个端部位置之间驱动电枢的一对电磁体。控制器包括用于向提供一个端部位置的电磁体施加电压达第一预定周期的电压施加装置，以便将电枢吸引到终端位置。控制器还包括峰值电流检测器，用于检测在第一预定周期内流过电磁体的电流的峰值。根据峰值，决定装置决定在第一施加期间经过后施加于电磁铁的电压的施加期间。因此，电枢可以以受控的速度进行稳定的就座，而不会产生实质的噪音。

4. 发明授权

US06633157B1 Displacement detecting device 失效
标题翻译：位移检测装置
公开(公告)号：US06633157B1
公开(公告)日：2003-10-14
申请号：US09714358
申请日：2000-11-16
申请人： Toshihiro Yamaki , Kenji Abe , Kouichi Ikoma , Yasuo Shimizu , Minoru Nakamura
发明人： Toshihiro Yamaki , Kenji Abe , Kouichi Ikoma , Yasuo Shimizu , Minoru Nakamura
IPC分类号： G01B714
CPC分类号： G01D5/145 , F01L9/04 , G01B7/023 , Y10T137/8242
摘要： Displacement of a mechanical element is accurately detected by a simple and inexpensive structure. To provide displacement detecting device including: a mechanical element capable of being displaced; a magnet connected to the mechanical element and magnetized in displacement direction of the mechanical element; and a magnetic sensor for detecting a magnetic flux generated by the magnet and outputting a sensor output corresponding to a detected magnetic-flux value, so as to detect displacement of the mechanical element in accordance with the sensor output. In one embodiment, a Hall element is used as the magnetic sensor and the magnet longer than distance of movement of the mechanical element is used. Thus, an output having a linear relation with displacement of the mechanical element is obtained, and detection of the displacement is easily implemented. The displacement detecting device can be applied to an actuator of intake/exhaust valves of an engine. In another embodiment, a magnetic material provided between the Hall element and a spring to reduce the disturbance caused by the spring. Moreover, a transfer shaft connected to the intake/exhaust valve is made of a non-magnetic material or a material having characteristics close to the non-magnetic material to reduce the effect of leakage flux.
摘要翻译：通过简单且廉价的结构精确地检测出机械元件的位移。提供位移检测装置，包括：能够移位的机械元件; 连接到所述机械元件并在所述机械元件的位移方向上被磁化的磁体; 以及磁传感器，用于检测由磁体产生的磁通量并输出对应于检测磁通值的传感器输出，以便根据传感器输出检测机械元件的位移。在一个实施例中，使用霍尔元件作为磁传感器，并且使用长于机械元件的移动距离的磁体。因此，获得与机械元件的位移具有线性关系的输出，并且易于实现位移的检测。位移检测装置可以应用于发动机的进气/排气阀的致动器。在另一个实施例中，设置在霍尔元件和弹簧之间的磁性材料以减少由弹簧引起的干扰。此外，连接到进/排气门的传送轴由非磁性材料或具有接近非磁性材料的特性的材料制成，以减少漏磁通的影响。

5. 发明授权

US06378473B2 Method of controlling electromagnetic valve unit for internal combustion engines 失效
标题翻译：内燃机电磁阀装置控制方法
公开(公告)号：US06378473B2
公开(公告)日：2002-04-30
申请号：US09740348
申请日：2000-12-18
申请人： Toshihiro Yamaki , Minoru Nakamura , Jiro Fujimoto
发明人： Toshihiro Yamaki , Minoru Nakamura , Jiro Fujimoto
IPC分类号： F01L904
CPC分类号： F01L9/04
摘要： An electromagnetic valve unit in an internal combustion engine is controlled by determining a difference between the output of a displacement sensor when a valve head is in an open position and the output of the displacement sensor when the valve head is in a closed position in each period of an opening and closing action of the valve head. The difference corresponds to a full displacement of the valve head between the open position and the closed position. The electromagnetic valve unit is also controlled by establishing, using the difference, a threshold for the output of the displacement sensor which corresponds to a predetermined displaced position of the valve head which is determined based on a proportion of the full displacement, and controlling energization of the valve-opening electromagnet and/or the valve-closing electromagnet depending on whether the output of the displacement sensor has reached the threshold or not upon the opening and closing action of the valve head immediately after the threshold is established.
摘要翻译：内燃机中的电磁阀单元通过在阀头处于打开位置时确定位移传感器的输出与位移传感器的输出之间的差值来控制，当阀头在每个周期中处于关闭位置时阀头的打开和关闭动作。该差异对应于阀头在打开位置和关闭位置之间的完全位移。电磁阀单元也通过使用该差异来建立位移传感器的输出的阈值来控制，所述阈值对应于基于全位移的比例确定的阀头的预定位移位置，并且控制通电开阀电磁体和/或闭阀电磁体取决于位移传感器的输出是否在阈值建立之后阀头的打开和关闭动作达到阈值。

6. 发明授权

US06201681B1 Control apparatus for electromagnetic actuator 失效
标题翻译：电磁执行器控制装置
公开(公告)号：US06201681B1
公开(公告)日：2001-03-13
申请号：US09348687
申请日：1999-07-07
申请人： Minoru Torii , Toshihiro Yamaki , Minoru Nakamura
发明人： Minoru Torii , Toshihiro Yamaki , Minoru Nakamura
IPC分类号： H01H4700
CPC分类号： F01L9/04
摘要： A control apparatus for an electromagnetic actuator for driving a mechanical element by using an electromagnetic coil. The control apparatus includes a circulation circuit for circulating current to be supplied to the electromagnetic coil, a capacitor provided in the circulation circuit and to be charged by the current flowing through the circulation circuit, and a unit for, when the current supplied to the electromagnetic coil is stopped, forming a discharge path for discharging the capacitor and flowing current to an opposite direction through the electromagnetic coil. The current supplied to the electromagnetic coil is charged in the capacitor, then when the current having been supplied to the electromagnetic coil is stopped, the electric charge thus accumulated in the capacitor is discharged thereby to flow current to the opposite direction through the electromagnetic coil. Thus, the current caused by the induced electromotive force generated in the electromagnetic coil due to the stop of the supplied current can be canceled, so that the electromagnetic coil can be quickly demagnetized.
摘要翻译：一种用于通过使用电磁线圈驱动机械元件的电磁致动器的控制装置。控制装置包括循环电路，用于循环供给电磁线圈的电流，设置在循环回路中并由流过循环回路的电流充电的电容器，以及当提供给电磁线圈的电流时，线圈停止，形成用于使电容器放电并且将电流流过电磁线圈的相反方向的放电路径。提供给电磁线圈的电流被充电到电容器中，然后当已经提供给电磁线圈的电流停止时，这样累积在电容器中的电荷被放电，从而通过电磁线圈将电流流向相反的方向。因此，可以抵消由于供给电流的停止而在电磁线圈中产生的感应电动势引起的电流，使得电磁线圈能够快速退磁。

7. 发明授权

US06725816B2 Apparatus for and method of controlling solenoid-operated valve device, and recording medium storing control program for solenoid-operated valve device 失效
标题翻译：用于控制电磁阀装置的装置和方法以及用于电磁阀装置的存储控制程序的记录介质
公开(公告)号：US06725816B2
公开(公告)日：2004-04-27
申请号：US10004153
申请日：2001-11-15
申请人： Toshihiro Yamaki , Kenji Abe , Minoru Nakamura
发明人： Toshihiro Yamaki , Kenji Abe , Minoru Nakamura
IPC分类号： F01L904
CPC分类号： F01L9/04 , F01L2009/0436 , F01L2009/0469 , F01L2201/00
摘要： In an alternate energization process for alternately energizing a valve closing electromagnet and a valve opening electromagnet periodically, one of the valve opening electromagnet and the valve closing electromagnet is de-energized and thereafter the other electromagnet is de-energized at a time delayed by a predetermined time Toff. The alternate energization process is finished when the displaced position of a valve head which is detected by a displacement sensor has reached a predetermined position Vinit while the valve opening electromagnet is being energized. Thereafter, the valve opening electromagnet is continuously energized to seat the valve head in a closed position (initial position) from the time when the displaced position of the valve head has reached a predetermined position Vstart.
摘要翻译：在用于周期性地交替地给闭阀电磁体和开阀电磁体供电的替代通电过程中，打开电磁铁和闭阀电磁体中的一个被断电，然后另一个电磁体在延迟预定的时间被断电时间Toff。当通过位移传感器检测到的阀头的位移位置在阀开启电磁体通电时已达到预定位置Vinit时，交替通电过程结束。此后，从阀头的位移位置到达预定位置Vstart的时刻开始，阀开启电磁体被持续通电以将阀头安置在关闭位置（初始位置）。

8. 发明授权

US06729277B2 Electromagnetic valve controller 失效
标题翻译：电磁阀控制器
公开(公告)号：US06729277B2
公开(公告)日：2004-05-04
申请号：US10002845
申请日：2001-11-14
申请人： Toshihiro Yamaki , Minoru Nakamura , Yoshinori Onohara
发明人： Toshihiro Yamaki , Minoru Nakamura , Yoshinori Onohara
IPC分类号： F01L904
CPC分类号： F01L9/04
摘要： An electromagnetic valve controller estimates a dead time based on predetermined parameters. A dead time for the current cycle is determined based on the estimated dead time. The controller measures a dead time in the previous cycle. The controller determines a deviation between the dead time measured in the previous cycle and the dead time estimated in the previous cycle. The deviation is added to the dead time estimated in the current cycle to determine the dead time for the current cycle. The controller further determines a target de-energization timing indicating when to execute a valve timing command. The dead time determined for the current cycle is offset or subtracted from the target de-energization timing to determine an actual de-energization timing. An electromagnet of the valve is de-energized in accordance with the actual de-energization timing.
摘要翻译：电磁阀控制器基于预定参数来估计死区时间。基于估计的死区时间确定当前周期的死区时间。控制器测量上一个循环中的死区时间。控制器确定在上一个循环中测量的死区时间与上一个循环中估计的死区时间之间的偏差。将偏差加到当前周期中估计的死区时间，以确定当前周期的死区时间。控制器进一步确定指示何时执行气门正时命令的目标断电定时。为当前周期确定的死区时间从目标断电定时偏移或减去，以确定实际的断电定时。阀门的电磁铁根据实际断电时机断电。

9. 发明授权

US06549390B1 Actuator controller 失效
标题翻译：执行器控制器
公开(公告)号：US06549390B1
公开(公告)日：2003-04-15
申请号：US09670347
申请日：2000-09-27
申请人： Hidetaka Ozawa , Minoru Nakamura
发明人： Hidetaka Ozawa , Minoru Nakamura
IPC分类号： H01H4700
CPC分类号： F02D41/0002 , F01L9/04 , F02D13/0207 , F02D13/0253 , F02D2041/001 , F02D2041/2034 , F02D2041/2062 , F02D2041/2079 , Y02T10/42
摘要： An electromagnetic actuator for driving a valve of an engine comprises a pair of springs which act in opposite directions, an armature which is connected to the springs and is supported in a neutral position provided by the pair of springs in an inactivated state, the armature being coupled to the valve, a pair of electromagnets which drive the armature between a valve open position and a valve closed position, estimating means for estimating magnetic flux to be generated by the electromagnet attracting the armature when the armature is driven from one of the positions to the other of the positions, and means for switching the electromagnet from the attractive operation to the holding operation in response to the magnetic flux reaching the target overshoot value.
摘要翻译：用于驱动发动机的阀的电磁致动器包括一对沿相反方向作用的弹簧，电枢连接到弹簧并被支撑在处于非激活状态的一对弹簧提供的中立位置，电枢是耦合到所述阀，一对电磁体，其在阀打开位置和阀关闭位置之间驱动所述电枢;估计装置，用于估计当所述电枢从其中一个位置被驱动时所述电磁体吸引所述电磁体产生的磁通量; 另一个位置，以及响应于达到目标过冲值的磁通量将电磁铁从吸引操作切换到保持操作的装置。

10. 发明授权

US06674629B2 Controller for controlling an electromagnetic actuator 失效
标题翻译：用于控制电磁执行器的控制器
公开(公告)号：US06674629B2
公开(公告)日：2004-01-06
申请号：US10042315
申请日：2002-01-08
申请人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura
发明人： Hidetaka Ozawa , Kenji Abe , Yoshitomo Kouno , Minoru Nakamura
IPC分类号： H01H4732
CPC分类号： F16K31/0679 , F16K37/00
摘要： A controller for an electromagnetic actuator is provided that enables detection of a minute movement of the armature leaving the seating position and carries out pullback operation responsive to such detection. The electromagnetic actuator has a pair of springs acting on opposite directions, and an armature coupled to a mechanical element such as a exhaust/intake valve of an automobile engine. The armature is held in a neutral position given by the springs when the actuator is not activated. The actuator includes a pair of electromagnets for driving the armature between two end positions. The controller having current supplying means for supplying holding current to the electromagnet corresponding to one of the end positions when holding the armature in said one of the end positions. The controller includes determining that the armature is leaving (falling or lifting) the seated position when the holding current increases more than a predetermined value while the holding current is supplied to the electromagnet corresponding to said end position. Leaving armature is detected based on the variation of the holding current, which allows earlier detection of the leaving armature.
摘要翻译：提供了一种用于电磁致动器的控制器，其能够检测离开座位位置的电枢的微小移动，并响应于这种检测执行回拉操作。电磁致动器具有作用在相反方向上的一对弹簧，以及联接到诸如汽车发动机的排气/进气门的机械元件的电枢。当致动器未被激活时，电枢被保持在弹簧给定的中间位置。致动器包括用于在两个端部位置之间驱动电枢的一对电磁体。所述控制器具有电流供应装置，用于当将所述电枢保持在所述一个端部位置时，向对应于所述端部位置之一的所述电磁体提供保持电流。当保持电流增加到预定值以上时，控制器包括确定电枢正在离开（下降或提升）就座位置，同时将保持电流提供给对应于所述端部位置的电磁体。基于保持电流的变化检测离开电枢，这允许较早检测离开的电枢。

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