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    • 42. 发明申请
    • Motor control device
    • 电机控制装置
    • US20040027083A1
    • 2004-02-12
    • US10423494
    • 2003-04-25
    • Toyoda Koki Kabushiki Kaisha
    • Hiroshi Suzuki
    • H02P007/00
    • H02M1/38B62D5/0487H02M2001/0009H02P6/15H02P6/28
    • The object of the present invention is to provide a motor control device capable of optimizing by actively controlling dead time even if FET characteristics change due to changes over time or the like. In a motor control device 20, a motor drive device 24 is disposed for U-, V-, and W-phases. High-stage FETs 81U, 81V, 81W and low-stage FETs 82U, 82V, 82W are disposed in series and are turned on in an exclusive manner. Connection points 83U, 83V, 83W are disposed therebetween and send drive currents to the phases of a brushless DC motor 6. Shunt resistors RU, RV, RW are inserted in the circuit to detect current for each of the phases. Through-current is monitored to optimize dead time and perform efficient and responsive motor control. The CPU 21 monitors current values detected during dead time. If an irregularity is detected, the dead time is increased to prevent through-current.
    • 本发明的目的是提供一种电动机控制装置,即使由于随时间的变化等而导致FET特性变化,也能够通过主动控制死区时间进行优化。 在电动机控制装置20中,设置有电动机驱动装置24,用于U相,V相和W相。 高级FET 81U,81V,81W和低级FET82U,82V,82W串联布置,并且以独占方式导通。 连接点83U,83V,83W设置在它们之间并将驱动电流发送到无刷直流电动机6的相位。分流电阻器RU,RV,RW插入电路中以检测每相的电流。 监控直流电流以优化死区时间并执行高效和响应的电机控制。 CPU21监视在死区时间内检测到的当前值。 如果检测到不规则,则死区时间会增加,以防止直流。
    • 44. 发明申请
    • Optical waveguides, lens array and laser collecting device
    • 光波导,透镜阵列和激光采集装置
    • US20030223686A1
    • 2003-12-04
    • US10382496
    • 2003-03-07
    • TOYODA KOKI KABUSHIKI KAISHA
    • Hiromichi OtaYoshinobu KatohYasuo NiinoTomomi Nakano
    • G02B006/32
    • B23K26/0604G02B6/04G02B6/4249G02B6/425
    • Optical waveguides, lens arrays and laser collecting devices are disclosed. The optical waveguide is formed with an output surface which is made smaller in dimension in a fast axis direction than an input surface. The waveguide collects in the fast axis direction plural laser beams output from plural laser emitting parts arranged in the fast axis direction and outputs from the output surface. The entrance surface of the optical waveguide is provided with first lenses to correspond respectively to the plural laser emitting parts. Each of the first lenses is located to be offset first predetermined distances from a corresponding one of the laser emitting parts in the beam traveling direction and in said fast axis direction, and the first predetermined distances are determined for each of the first lens in taking into account the focal length of each first lens and an angle which each first lens makes with the output surface of the waveguide.
    • 公开了光波导,透镜阵列和激光收集装置。 光波导形成为具有比输入面在快轴方向尺寸更小的输出面。 波导从快轴方向收集多个从快轴方向排列的激光发射部输出的激光,并从输出面输出。 光波导的入射面设置有分别对应于多个激光发射部的第一透镜。 每个第一透镜被定位成在光束移动方向和所述快轴方向上偏离相应的一个激光发射部分的第一预定距离,并且对于第一透镜中的每一个确定第一预定距离 考虑每个第一透镜的焦距和每个第一透镜与波导的输出表面形成的角度。
    • 45. 发明申请
    • Pump apparatus
    • 泵装置
    • US20030202888A1
    • 2003-10-30
    • US10422785
    • 2003-04-25
    • TOYODA KOKI KABUSHIKI KAISHA
    • Hidetoshi FujiwaraYoshinori SuzukiKentaro Yamauchi
    • F04B049/00
    • F04C15/062F04C14/26
    • In a housing of a pump apparatus having a flow control valve to discharge a part of excess fluid in a deviated slanting way to a bypass pass 11, a pair of suction paths 19, 19null is formed opposite to end portions 119, 119null of the bypass path 11 to send operation fluid to suction ports of the pump apparatus. A dividing wall is equipped at opening portions of said pair of suction paths 19, 19null to distribute the operation fluid to each of suction paths 19, 19null. A cross sectional area of one of said opening portions in a side of a direction of said deviated slanting way is smaller than a cross sectional area of the other of said opening portions in an opposite side of the deviated slanting way to relatively restrict a flow of said operation fluid in said one of opening portions.
    • 在具有流量控制阀的泵装置的壳体中,其以偏斜的倾斜方式将一部分过量的流体排放到旁路通道11,一对吸入路径19,19'形成为相对于端部119,119'相对 旁路路径11将操作流体发送到泵装置的吸入口。 在所述一对吸入路19,19'的开口部设有分隔壁,以将操作流体分配到每个吸入路19,19'。 所述开口部分中的一个所述开口部分的横向方向的横截面面积小于所述偏离倾斜方向的相对侧中的另一个所述开口部分的横截面面积,以相对地限制 所述操作流体在所述一个开口部分中。
    • 46. 发明申请
    • Controller and control method for an electric power steering apparatus
    • 一种电动助力转向装置的控制和控制方法
    • US20030130777A1
    • 2003-07-10
    • US10314984
    • 2002-12-10
    • TOYODA KOKI KABUSHIKI KAISHA
    • Masahide IwazawaKiyotaka IwataAkira ItoYasushi Yamada
    • B62D005/04
    • B60T8/885B60T2270/414B62D5/0481
    • A controller controls an electric motor to provide assist power corresponding to steering operation for an electric power steering apparatus. The controller comprises a detecting device, a filtering device, a judging device and a determining device. The detecting device detects present voltage of a power source for the electric motor. The filtering device filters the present voltage based on a small time-constant when the voltage of the power source increases and based on a large time-constant when the voltage of the power source decreases. The judging device judges whether the filtered voltage is lower than a predetermined threshold. And, the determining device determines being abnormality of the power source when it is judged that the filtered voltage is lower than the threshold.
    • 控制器控制电动机以提供与电动助力转向装置的转向操作相对应的辅助动力。 控制器包括检测装置,过滤装置,判断装置和确定装置。 检测装置检测电动机的电源的当前电压。 当电源的电压增加时,滤波装置基于小的时间常数,并且当电源的电压降低时,基于大的时间常数来滤波当前的电压。 判断装置判断滤波电压是否低于规定的阈值。 并且,当判断为滤波电压低于阈值时,确定装置确定电源的异常。
    • 47. 发明申请
    • Hydraulic bearing
    • 液压轴承
    • US20030123765A1
    • 2003-07-03
    • US10254761
    • 2002-09-26
    • TOYODA KOKI KABUSHIKI KAISHA
    • Minoru HiranoToshihiko Shima
    • F16C032/06
    • F16C32/0651F16C32/0659F16C32/0685F16C33/1075
    • A hydraulic bearing that supports a rotating shaft comprises a bearing metal. On a surface of the bearing metal, a hydrostatic pocket and a land portion are formed. The land portion is defined by the hydrostatic pocket and generates hydrodynamic pressure in response to a rotation of the rotating shaft. The hydraulic bearing further comprises a pressure fluid supplying source and an oil-supplying hole. The oil-supplying hole is opened in the hydrostatic pocket and provides pressure fluid from the pressure fluid supplying source to the hydrostatic pocket. On the land portion, a drain hole that drains the fluid is formed. On the way of a drain passage, a check valve is disposed. Since the drain hole does not separate the land portion, deterioration of bearing rigidity is restrained. Further, since the fluid is drained through the drain hole, thermal expansion of the bearing metal due to heat generation of the fluid is restrained. Moreover, according to the check valve, it is possible to prevent suctioning air into the hydraulic bearing when negative pressure generates at the land portion.
    • 支撑旋转轴的液压轴承包括轴承金属。 在轴承金属的表面上形成静压袋和台阶部。 地面部分由流体静力袋定义,并响应于旋转轴的旋转产生流体动力学压力。 液压轴承还包括压力流体供应源和供油孔。 供油孔在静液压袋中打开,并将压力流体从压力流体供应源提供给静液压袋。 在陆部上形成排出流体的排水孔。 在排水通道的路上,设置止回阀。 由于排水孔不分离陆部,因此抑制了轴承刚性的劣化。 此外,由于流体通过排水孔排出,所以抑制了由于流体的发热引起的轴承金属的热膨胀。 此外,根据止回阀,当在陆部产生负压时,可以防止在空气中吸入空气。