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    • 11. 发明授权
    • Electromagnetic actuator controller
    • 电磁执行器控制器
    • US06690563B2
    • 2004-02-10
    • US10052724
    • 2002-01-18
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro Yamaki
    • Hidetaka OzawaKenji AbeYoshitomo KounoMinoru NakamuraToshihiro Yamaki
    • H01H900
    • F01L9/04H01F7/1844
    • 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.
    • 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。
    • 12. 发明授权
    • Vibration-isolating mount device
    • 隔振安装装置
    • US5779231A
    • 1998-07-14
    • US960086
    • 1997-10-24
    • Koji OkazakiYasuji NozawaMasaki UeyamaMasakazu KinoshitaHidetaka Ozawa
    • Koji OkazakiYasuji NozawaMasaki UeyamaMasakazu KinoshitaHidetaka Ozawa
    • B60K5/12F16F13/26F16F5/00F16M5/00
    • F16F13/26F16F13/262F16F13/264
    • A mounting member fixed to an engine and a mounting member fixed to a vehicle body are interconnected by a hollow elastomeric block which has a variable-volume primary fluid chamber defined therein. A subsidiary fluid chamber having a diaphragm on a portion of an outer wall thereof communicates with the primary fluid chamber through two fluid passages. A movable plate forming a portion of the outer wall of the primary fluid chamber is connected to a voice coil motor, and by one example, is driven at the same phase as a vibration applied from the engine. During a normal traveling, both the fluid chambers communicate with each other through the fluid passage having a smaller length. During idling or during a low speed traveling, a switch-over valve is operated to permit both the fluid chamber to be put into communication with each other through the fluid passage having a larger length. With the above construction, it is possible to stably exhibit the performance of the vibration-isolating mount device in a wide frequency region.
    • 固定到发动机的安装构件和固定到车体的安装构件通过中空弹性体块相互连接,中空弹性块具有限定在其中的可变容积的初级流体室。 具有在其外壁的一部分上的隔膜的辅助流体室通过两个流体通道与主流体室连通。 形成主流体室的外壁的一部分的活动板连接到音圈电动机,并且通过一个示例,以与从发动机施加的振动相同的相位被驱动。 在正常行驶期间,两个流体室通过具有较小长度的流体通道相互连通。 在空转或低速行驶期间,操作切换阀以允许流体室通过具有较大长度的流体通道相互连通。 通过上述结构,可以在宽频率区域中稳定地显示防振安装装置的性能。
    • 13. 发明授权
    • Vibration/noise control system
    • 振动/噪音控制系统
    • US5638305A
    • 1997-06-10
    • US410273
    • 1995-03-24
    • Toshiaki KobayashiHidetaka Ozawa
    • Toshiaki KobayashiHidetaka Ozawa
    • B60R11/02F16F15/02G05D19/02G10K11/178H04B15/00
    • G10K11/1788G10K11/1784G10K2210/101G10K2210/121G10K2210/1282G10K2210/129G10K2210/30232G10K2210/3028G10K2210/3033G10K2210/3044G10K2210/3045G10K2210/3048G10K2210/3049G10K2210/3055G10K2210/3211G10K2210/511
    • A vibration/noise control system controls vibrations and noises generated with a periodicity or a quasi-periodicity from a vibration/noise source having at least a rotating member. A self-expanding engine mount is arranged in at least one of vibration/noise transmission paths and is driven by a driving signal generated by the system. A vibration error sensor detects an error signal exhibiting a difference between the driving signal and the vibrations and noises. A reference sine wave is generated, which is superposed on a control signal for controlling the vibration/noise source, to thereby drive the self-expanding engine mount. A transfer characteristic of a portion of at least one of the vibration/noise transmission paths is identified based on the reference sine wave, a delayed sine wave delayed by a predetermined delay period M relative to the reference sine wave, and the error signal. The transfer characteristic stored is updated based on an identification signal output from an identifying filter formed by an adaptive digital filter having two taps. The predetermined delay period M is set relative to the repetition period of the reference sine wave in a range of 1/3.gtoreq.M.gtoreq.1/7, wherein M is a real number.
    • 振动/噪声控制系统控制由至少具有旋转构件的振动/噪声源以周期性或准周期性产生的振动和噪声。 自扩张发动机支架设置在振动/噪声传递路径中的至少一个中,并由系统产生的驱动信号驱动。 振动误差传感器检测表现出驱动信号与振动和噪声之间的差异的误差信号。 产生参考正弦波,其叠加在用于控制振动/噪声源的控制信号上,从而驱动自扩张发动机支架。 基于参考正弦波,相对于参考正弦波延迟预定延迟周期M的延迟正弦波和误差信号来识别至少一个振动/噪声传输路径的一部分的传输特性。 存储的传送特性基于从具有两个抽头的自适应数字滤波器形成的识别滤波器输出的识别信号被更新。 相对于参考正弦波的重复周期,预定延迟周期M在+ E,fra 1/3 + EE>,F 1/7 + EE的范围内设置,其中M是 一个实数
    • 14. 发明授权
    • Adapative control device
    • 适应控制装置
    • US5491446A
    • 1996-02-13
    • US152013
    • 1993-11-15
    • Tsuyoshi OkadaToshiaki KobayashiHidetaka Ozawa
    • Tsuyoshi OkadaToshiaki KobayashiHidetaka Ozawa
    • G10K11/178H03H17/00H03H17/02H03H21/00H04B3/04H04B15/00
    • G10K11/178H03H21/0012G10K2210/3027G10K2210/3032G10K2210/503G10K2210/511
    • An adaptive control device is arranged to cancel periodic noises without any malfunction and delay if aperiodic noises are mingled in the periodic noises. In the adaptive control device, the reference signal sensor senses a reference signal. The reference signal is filtered in the adaptive filter. The filtered signal is applied to the actuator serving as an electrical-mechanical converting unit so that the signal may be added to the input noises. The added result corresponding to an error is converted into an electric signal through the effect of the sensor. The electric signal is applied to the periodic signal separator for separating the signal into a periodic error and an aperiodic error. The coefficient updating unit operates to update a tap coefficient of the adaptive filter by employing an algorithm such as an LMS by using the separated periodic error and the signal filtered by the transfer characteristic compensating filter.
    • 如果在周期性噪声中混合非周期性噪声,则自适应控制装置被布置为消除周期性噪声而没有任何故障和延迟。 在自适应控制装置中,参考信号传感器感测参考信号。 参考信号在自适应滤波器中滤波。 经滤波的信号被施加到用作机电转换单元的致动器,使得信号可以被添加到输入噪声。 通过传感器的作用将对应于误差的相加结果转换为电信号。 电信号被施加到周期性信号分离器,用于将信号分离成周期性误差和非周期误差。 系数更新单元通过使用诸如LMS的算法通过使用分离的周期性误差和由传输特性补偿滤波器滤波的信号来操作来更新自适应滤波器的抽头系数。
    • 15. 发明授权
    • Fuel injection device, fuel injection control device, and control method of fuel injection device
    • 燃油喷射装置,燃料喷射控制装置以及燃料喷射装置的控制方法
    • US08020533B2
    • 2011-09-20
    • US11802574
    • 2007-05-23
    • Tadao TsuchiyaManabu ShoujiTsukasa NaganumaYasuharu HouraiKenichi OmoriKazuhito KakimotoHidetaka Ozawa
    • Tadao TsuchiyaManabu ShoujiTsukasa NaganumaYasuharu HouraiKenichi OmoriKazuhito KakimotoHidetaka Ozawa
    • F02M51/00F16K31/02
    • F02M51/0603F02M51/0653F02M63/0063
    • To provide a fuel injection device for controlling a fuel injection valve including a solenoid and a magnetostrictive element to generate a drive force for driving the fuel injection valve, the fuel injection device including: a solenoid power source (31) for driving the solenoid, a solenoid drive circuit (10) adapted to control the electrification to the solenoid by the solenoid power source (31), a plurality of magnetostrictive element driving power sources (32, 33) for driving the magnetostrictive element, and a magnetostrictive element drive circuit (20) adapted to control the electrification to a magnetostrictive coil of the magnetostrictive element by the magnetostrictive element driving power sources. Since the plurality of the magnetostrictive element driving power sources can be respectively used when performing a valve-opening operation and when performing a valve-closing operation of the fuel injection valve of the fuel injection device, the opening/closing operation of the fuel injection valve of the fuel injection device can be properly performed.
    • 为了提供一种用于控制包括螺线管和磁致伸缩元件的燃料喷射阀的燃料喷射装置,以产生用于驱动燃料喷射阀的驱动力,该燃料喷射装置包括:用于驱动螺线管的螺线管电源(31) 螺线管驱动电路(10),其适于通过螺线管电源(31)控制对螺线管的通电,用于驱动磁致伸缩元件的多个磁致伸缩元件驱动电源(32,33)和磁致伸缩元件驱动电路(20 )适于通过磁致伸缩元件驱动电源来控制对磁致伸缩元件的磁致伸缩线圈的通电。 由于在进行开阀动作时以及在进行燃料喷射装置的燃料喷射阀的关闭动作时可以分别使用多个磁致伸缩元件驱动动力源,所以燃料喷射阀的开闭动作 的燃料喷射装置。
    • 17. 发明授权
    • Variable lift valve operating system for internal combustion engine
    • 内燃机可变提升阀操作系统
    • US07281505B2
    • 2007-10-16
    • US11480564
    • 2006-07-05
    • Hiroyuki MuraseTakahumi MizorogiHidetaka Ozawa
    • Hiroyuki MuraseTakahumi MizorogiHidetaka Ozawa
    • F01L1/34
    • F01L13/00F01L13/0026
    • In a variable lift valve operating system for an internal combustion engine, an actuator for rotatably driving a control shaft of a variable lift mechanism is mounted on an engine body. The actuator includes an electric motor, a deceleration mechanism, a transmission mechanism interposed between the control shaft and the deceleration mechanism, and a default mechanism. A deceleration mechanism accommodation part for accommodating the deceleration mechanism and a default mechanism accommodation part for accommodating the default mechanism are formed in a casing of the actuator so as to sandwich therebetween a thermally vulnerable part which is directly connected to the control shaft. Therefore, it is possible to enhance the degree of freedom of amounting position of the actuator while heat damage is prevented from generating in the thermally vulnerable part of the actuator.
    • 在用于内燃机的可变提升阀操作系统中,用于可旋转地驱动可变提升机构的控制轴的致动器安装在发动机主体上。 致动器包括电动机,减速机构,设置在控制轴和减速机构之间的变速机构,以及默认机构。 在致动器的壳体中形成有用于容纳减速机构的减速机构容纳部和用于容纳默认机构的默认机构容纳部,以将它们夹在其间直接连接到控制轴的耐热脆性部。 因此,可以提高致动器的位置自由度,同时防止在致动器的热脆性部分中产生热损伤。