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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

US06955144B2 Valve control apparatus for internal combustion engine 失效
标题翻译：内燃机气门控制装置
公开(公告)号：US06955144B2
公开(公告)日：2005-10-18
申请号：US10484990
申请日：2002-07-26
申请人： Hisao Sakai , Yasuo Shimizu , Toshihiro Yamaki , Hidetaka Ozawa
发明人： Hisao Sakai , Yasuo Shimizu , Toshihiro Yamaki , Hidetaka Ozawa
IPC分类号： F01L1/18 , F01L1/26 , F01L9/04 , F01L13/00 , F02D13/02 , F02D41/04 , F02D41/06 , F02D45/00
CPC分类号： F01L13/0036 , F01L1/022 , F01L1/267 , F01L13/0005 , F01L2800/00
摘要： A valve control apparatus for an internal combustion engine is provided which is capable of optimally setting the closing timing of an engine valve according to operating conditions of the engine while suppressing an increase in the inertial mass of the engine valve to the minimum, thereby attaining improvement of fuel economy, and realization of higher engine rotational speed and higher power output in a compatible fashion, and reducing costs and weight thereof. The valve control apparatus controls opening and closing operations of an engine valve. A cam-type valve actuating mechanism actuates the engine valve to open and close the engine valve, by a cam which is driven in synchronism with rotation of the engine. An actuator makes blocking engagement with the engine valve having been opened, to thereby hold the engine valve in an open state. An ECU controls operation of the actuator to thereby control closing timing of the engine valve.
摘要翻译：提供一种用于内燃机的阀控制装置，其能够根据发动机的运行状况最佳地设定发动机气门的关闭正时，同时将发动机气门的惯性质量的增加抑制到最小，从而获得改善的燃油经济性，并且以兼容的方式实现更高的发动机转速和更高的功率输出，并且降低成本和重量。阀控制装置控制发动机气门的打开和关闭操作。凸轮型阀致动机构通过与发动机的旋转同步地驱动的凸轮致动发动机气门来打开和关闭发动机气门。致动器与已经打开的发动机气门阻塞接合，从而将发动机气门保持在打开状态。 ECU控制致动器的操作，从而控制发动机气门的关闭正时。

4. 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。

5. 发明授权

US06705256B2 Valve timing control system for internal combustion engine 失效
标题翻译：内燃机气门正时控制系统
公开(公告)号：US06705256B2
公开(公告)日：2004-03-16
申请号：US10390912
申请日：2003-03-19
申请人： Toshihiro Yamaki , Hidetaka Ozawa , Hisao Sakai , Kenji Abe
发明人： Toshihiro Yamaki , Hidetaka Ozawa , Hisao Sakai , Kenji Abe
IPC分类号： F01L904
CPC分类号： F01L1/267 , F01L1/26 , F01L1/46 , F01L9/04 , F01L2013/0089
摘要： A valve timing control system for an internal combustion engine is provided which is capable of ensuring reliable holding of a valve by an actuator, and attaining energy saving by efficient operation of the actuator. The valve timing control system controls valve-closing timing of a valve opened by a cam provided on a camshaft, by temporarily holding the valve. A response delay of the actuator is predicted as a response delay prediction value. Output timing is set in which a drive signal for driving the actuator is output, according to the predicted response delay prediction value. Holding timing is controlled in which the valve is held by the actuator, by outputting the drive signal to the actuator, based on the set output timing.
摘要翻译：提供了一种用于内燃机的气门正时控制系统，其能够确保通过致动器可靠地保持阀，并且通过致动器的有效操作实现节能。气门正时控制系统通过临时保持阀门来控制由设置在凸轮轴上的凸轮打开的阀的关闭正时。执行器的响应延迟被预测为响应延迟预测值。根据预测的响应延迟预测值，设定输出用于驱动致动器的驱动信号的输出定时。通过根据设定的输出定时将致动器的驱动信号输出到致动器来控制保持定时。

6. 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。

7. 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。

8. 发明授权

US5544080A Vibration/noise control system 失效
标题翻译：振动/噪音控制系统
公开(公告)号：US5544080A
公开(公告)日：1996-08-06
申请号：US189912
申请日：1994-02-01
申请人： Toshiaki Kobayashi , Hidetaka Ozawa
发明人： Toshiaki Kobayashi , Hidetaka Ozawa
IPC分类号： G10K11/178 , G01H17/00
CPC分类号： G10K11/1784 , G10K2210/114 , G10K2210/1282 , G10K2210/3032 , G10K2210/3033 , G10K2210/3045 , G10K2210/3051 , G10K2210/3211
摘要： A sine wave signal generated in synchronism with a pulse signal determining a frequency of vibrations and noises generated by a vibration/noise source is input to a W filter and a C filter. The C filter selects filter coefficients dependent on the rotational speed of an engine, and generates a transfer characteristic-dependent reference signal R dependent on a transfer characteristic of a vibration/noise-transmitting path, based on the filter coefficients. Alternatively, a divisional signal is prepared by dividing a repetition period of vibrations and noises by a predetermined number, and values of a sine wave generated in synchronism with occurrence of said divisional signal is delivered to a W filter, while the transfer characteristic-dependent reference signal is delivered from the C filter storing data of the transfer characteristic identified in advance to the W filter. Alternatively, a sine wave signal and a delayed sine wave signal delayed by a quarter of a repetition period of the sine wave relative to the sine wave, as well as phase and amplitude-related information of the transfer characteristic of the path are generated and delivered in synchronism with generation of the divisional signal. These sine wave signals and the transfer characteristic-dependent reference signal (phase and amplitude-related information) are used to actively control the vibrations and noises.
摘要翻译：与确定由振动/噪声源产生的振动频率和噪声的脉冲信号同步产生的正弦波信号被输入到W滤波器和C滤波器。 C滤波器根据发动机的转速选择滤波器系数，并且基于滤波器系数，产生取决于振动/噪声传输路径的传递特性的传递特性相关参考信号R. 或者，通过将振动和噪声的重复周期除以预定数量来准备分割信号，并且与所述分割信号的出现同步地产生的正弦波的值被传送到W滤波器，而传输特性相关参考信号从存储了预先识别的传送特性的数据的滤波器传送到W滤波器。或者，生成并传送正弦波信号和延迟正弦波相对于正弦波的四分之一重复周期的延迟正弦波信号，以及路径的传输特性的相位和幅度相关信息与分割信号的产生同步。这些正弦波信号和传递特性相关参考信号（相位和幅度相关信息）用于主动控制振动和噪声。

9. 发明授权

US08382884B2 Particulate matter detection device 有权
标题翻译：颗粒物检测装置
公开(公告)号：US08382884B2
公开(公告)日：2013-02-26
申请号：US12705271
申请日：2010-02-12
申请人： Tatsuya Okayama , Masanobu Miki , Keizo Iwama , Hidetaka Ozawa , Makoto Hattori , Atsuo Kondo , Takeshi Sakuma , Takashi Egami , Masahiro Tokuda
发明人： Tatsuya Okayama , Masanobu Miki , Keizo Iwama , Hidetaka Ozawa , Makoto Hattori , Atsuo Kondo , Takeshi Sakuma , Takashi Egami , Masahiro Tokuda
IPC分类号： B03C3/68
CPC分类号： G01N27/226 , F02D41/1466 , G01N15/0656
摘要： A PM sensor is provided having high responsiveness and capable of long term detection. A PM sensor includes a sensor element that has particulate collection electrodes to which a particulate collection voltage for causing particulate matter contained in exhaust to adhere to a sensor element is applied, and measurement electrodes to which a measurement voltage for measuring an electrical characteristic of the sensor element is applied, in which, after a particulate collection voltage is applied to the particulate collection electrodes application of the particulate collection voltage is stopped in response to a predetermined condition being satisfied, the measurement voltage is applied to the measurement electrodes and the electrical characteristic of the sensor element is measured.
摘要翻译：提供具有高响应性并能够进行长期检测的PM传感器。 PM传感器包括具有颗粒收集电极的传感器元件，用于使包含在排气中的颗粒物质附着到传感器元件的颗粒收集电压被施加到该测量电极，测量电极用于测量传感器的电特性在颗粒收集电压施加到颗粒收集电极之后，响应于满足预定条件停止颗粒收集电压的应用，将测量电压施加到测量电极和电气特性测量传感器元件。

10. 发明申请

US20100206167A1 PARTICULATE MATTER DETECTION DEVICE 有权
标题翻译：颗粒物检测装置
公开(公告)号：US20100206167A1
公开(公告)日：2010-08-19
申请号：US12705271
申请日：2010-02-12
申请人： Tatsuya Okayama , Masanobu Miki , Keizo Iwama , Hidetaka Ozawa , Makoto Hattori , Atsuo Kondo , Takeshi Sakuma , Takashi Egami , Masahiro Tokuda
发明人： Tatsuya Okayama , Masanobu Miki , Keizo Iwama , Hidetaka Ozawa , Makoto Hattori , Atsuo Kondo , Takeshi Sakuma , Takashi Egami , Masahiro Tokuda
IPC分类号： B03C3/68
CPC分类号： G01N27/226 , F02D41/1466 , G01N15/0656
摘要： A PM sensor is provided having high responsiveness and capable of long term detection. A PM sensor 11 includes a sensor element 12 that has particulate collection electrodes 123A, 128A to which a particulate collection voltage for causing particulate matter contained in exhaust to adhere to a sensor element 12 is applied, and measurement electrodes 127A, 127B to which a measurement voltage for measuring an electrical characteristic of the sensor element 12 is applied, in which, after a particulate collection voltage is applied to the particulate collection electrodes 123A, 128A, application of the particulate collection voltage is stopped in response to a predetermined condition being satisfied, the measurement voltage is applied to the measurement electrodes 127A, 127B, and the electrical characteristic of the sensor element 12 is measured.
摘要翻译：提供具有高响应性并能够进行长期检测的PM传感器。 PM传感器11包括：传感器元件12，其具有颗粒收集电极123A，128A，用于使排气中所含的颗粒物质附着到传感器元件12上的颗粒收集电压向该微粒收集电极123A，128A;测量电极127A，127B，施加用于测量传感器元件12的电气特性的电压，其中在颗粒收集电压施加到颗粒收集电极123A，128A之后，响应于满足预定条件停止施加颗粒收集电压，测量电压被施加到测量电极127A，127B，并且测量传感器元件12的电特性。

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