Rotation angle detection device compromising
    3.
    发明授权
    Rotation angle detection device compromising 有权
    旋转角度检测装置妥协

    公开(公告)号:US09518844B2

    公开(公告)日:2016-12-13

    申请号:US13639294

    申请日:2011-03-25

    CPC classification number: G01D5/2451 G01D5/2449

    Abstract: Angular widths of respective magnetic poles of a detection rotor are stored and divisions are set for respective magnetic pole pairs. Based on output signals from first and second magnetic sensors, a rotation angle computation unit computes first and second rotation angles that are rotation angles within the corresponding division. Based on the angular widths, the rotation angle computation unit identifies the magnetic pole sensed by the first magnetic sensor and computes a first absolute rotation angle using the first rotation angle. Based on the identified magnetic pole and the second rotation angle, the rotation angle computation unit computes a second absolute rotation angle. The rotation angle of the detection rotor is computed based on the first and second absolute angles.

    Abstract translation: 存储检测转子的各个磁极的角度宽度,并为相应的磁极对设定分割。 基于来自第一和第二磁传感器的输出信号,旋转角计算单元计算作为相应划分内的旋转角度的第一和第二旋转角度。 基于角度宽度,旋转角度计算单元识别由第一磁性传感器感测的磁极,并使用第一旋转角度来计算第一绝对旋转角度。 基于所识别的磁极和第二旋转角度,旋转角度计算单元计算第二绝对旋转角度。 基于第一和第二绝对角度来计算检测转子的旋转角度。

    Rotation angle detection device
    4.
    发明授权
    Rotation angle detection device 有权
    旋转角度检测装置

    公开(公告)号:US08957675B2

    公开(公告)日:2015-02-17

    申请号:US13579006

    申请日:2011-02-23

    CPC classification number: G01D5/2451

    Abstract: Upon detecting a peak value from output signals of one of either a first or a second magnetic sensor, an rotation angle computation device identifies, on basis of an amplitude compensation table corresponding to the one magnetic sensor for which the peak value was detected, a pole number of a magnetic pole sensed by the magnetic sensor. Then, based on the identified pole number and a magnetic pole identification table, a pole number of a magnetic pole sensed by the other magnetic sensor is identified. The pole numbers of the magnetic poles sensed by the respective magnetic sensors are thus identified, and the rotation angle computation device compensates the output signals of the respective magnetic sensors using amplitude compensation gains corresponding to the sensed magnetic poles (magnetic pole pair).

    Abstract translation: 在从第一或第二磁传感器中的一个的输出信号检测到峰值时,旋转角计算装置基于与检测到峰值的一个磁传感器相对应的振幅补偿表,识别极点 由磁传感器感测的磁极的数量。 然后,基于所识别的极数和磁极识别表,识别由另一个磁传感器感测的磁极的极数。 因此识别由各个磁性传感器感测的磁极的极数,并且旋转角度计算装置使用与感测的磁极(磁极对)对应的振幅补偿增益来补偿各个磁性传感器的输出信号。

    Motor controller and electronic power steering apparatus
    5.
    发明授权
    Motor controller and electronic power steering apparatus 有权
    电机控制器和电动助力转向装置

    公开(公告)号:US08541965B2

    公开(公告)日:2013-09-24

    申请号:US12935774

    申请日:2009-03-30

    CPC classification number: B62D5/046 H02P21/0089 H02P21/06 H02P29/032

    Abstract: A command current setting portion has a target value corrector that calculates d-axis and q-axis current command values idc, iqc that are to be supplied to an open-loop controller, based on d-axis and q-axis current target values id*, iq*. When d-axis and q-axis voltage target value vd*, vq* calculated from the d-axis and q-axis current target values id*, iq* by the motor circuit equations exceed a voltage limit, this target value corrector 26 corrects the d-axis and q-axis current target values id*, iq* by the field weakening control such that d-axis and q-axis voltages vd, vq and d-axis and q-axis currents id, iq satisfy √(vd2+vq2)≦Vlim and √(id2+iq2)≦Ilim respectively. The d-axis and q-axis current command values idc, iqc are obtained by this correction.

    Abstract translation: 指令电流设定部具有基于d轴和q轴电流目标值id来计算要提供给开环控制器的d轴和q轴电流指令值idc,iqc的目标值校正部 *,iq *。 当通过电动机电路方程从d轴和q轴电流目标值id *,iq *计算的d轴和q轴电压目标值vd *,vq *超过电压限制时,该目标值校正器26校正 通过弱磁控制使d轴和q轴电流目标值id *,iq *使得d轴和q轴电压vd,vq和d轴和q轴电流id,iq满足√(vd2 + vq2)@Vlim和√(id2 + iq2)@Ilim。 通过该校正获得d轴和q轴电流指令值idc,iqc。

    Ice-making machine with ice storage bin
    6.
    发明授权
    Ice-making machine with ice storage bin 有权
    制冰机与储冰箱

    公开(公告)号:US08528357B2

    公开(公告)日:2013-09-10

    申请号:US12935745

    申请日:2009-03-19

    Abstract: An ice-making machine has a box-shaped lower housing with an ice storage bin, a box-shaped upper housing mounted on a rear portion of the lower housing, an ice-making mechanism within the front portion of a machine compartment in the upper housing, and a freezing unit installed behind the ice-making mechanism for supplying refrigerant to the ice-making mechanism. An open-and-close ice-access lid is pivotally mounted between the lower end of the upper housing and the the lower housing. An air intake passage introduces outside cooling air from the front face of the lower housing into the machine compartment along inner surfaces of one side wall and a rear wall of the lower housing. An air discharge passage is provided for passing the air after cooling to flow outward along inner surfaces of the rear wall and the other side wall of the lower housing to an exterior discharge from the front face of the lower housing.

    Abstract translation: 制冰机具有带有储冰箱的盒形下壳体,安装在下壳体的后部上的盒形上壳体,在上部机器室前部的制冰机构 壳体和安装在制冰机构后面的冷冻装置,用于向制冰机构供应制冷剂。 一个开闭的导冰盖枢转地安装在上壳体的下端和下壳体之间。 进气通道将外部冷却空气从下壳体的前表面引入机舱,其内侧面是下壳体的一个侧壁和后壁。 设置有空气排出通道,用于使冷却后的空气在下壳体的后壁和另一侧壁的内表面向外流动,从而从下壳体的前表面向外排出。

    Motor controller and electric power steering system
    7.
    发明授权
    Motor controller and electric power steering system 有权
    电机控制器和电动助力转向系统

    公开(公告)号:US08471504B2

    公开(公告)日:2013-06-25

    申请号:US12935816

    申请日:2009-03-30

    CPC classification number: B62D5/046 H02P21/08

    Abstract: In a motor controller, a current detection unit detects an electric current flowing through a brushless motor. An open loop control unit determines a command value indicating a level of a command voltage in accordance with a motor circuit equation, based on a command current value indicating an amount of electric current to be supplied to the brushless motor and an angular velocity of a rotor in the brushless motor. A correction unit calculates a correction value based on a difference between the command current value and a current value detected by the current detection unit when the electric current is detected by the current detection unit and corrects the command value according to the correction value, and corrects the command value according to the correction value even when an electric current is not detected by the current detection unit.

    Abstract translation: 在电动机控制器中,电流检测单元检测流过无刷电动机的电流。 开环控制单元基于指示要提供给无刷电动机的电流量的指令电流值和转子的角速度来确定表示根据电动机电路方程式的指令电压电平的指令值 在无刷电机中。 校正单元基于由当前检测单元检测到电流时由指令电流值与当前检测单元检测到的电流值之间的差计算校正值,并根据校正值校正指令值, 即使当电流检测单元未检测到电流时,也根据校正值的指令值。

    CASE STRUCTURE AND IMAGING DEVICE
    8.
    发明申请
    CASE STRUCTURE AND IMAGING DEVICE 有权
    案例结构与成像设备

    公开(公告)号:US20130002945A1

    公开(公告)日:2013-01-03

    申请号:US13537052

    申请日:2012-06-29

    Applicant: Takeshi UEDA

    Inventor: Takeshi UEDA

    Abstract: Herein describes, by example, a case structure that includes a first cover, a second cover and a first side frame. The second cover opposes the first cover. An internal space is formed between the first cover and the second cover. The first side frame is arranged between the first cover and the second cover. The first side frame has a reinforcing part and a strap holder part. The reinforcing part is arranged along each of a first side end part of the first cover and a second side end part of the second cover. The reinforcing part is connected to each of the first side end part and the second side end part. The strap holder part connects to an end part of the reinforcing part. The strap holder part is folded in an outward direction from the internal space.

    Abstract translation: 这里通过示例描述包括第一盖,第二盖和第一侧框架的壳体结构。 第二个盖子反对第一个封面。 在第一盖和第二盖之间形成内部空间。 第一侧框架布置在第一盖和第二盖之间。 第一侧框具有加强部和带固定部。 加强部沿着第一盖的第一侧端部和第二盖的第二侧端部配置。 加强部分连接到第一侧端部和第二侧端部中的每一个。 带支架部分连接到加强部件的端部。 带保持器部分从内部空间向外的方向折叠。

    OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS
    9.
    发明申请
    OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS 有权
    光学扫描装置,光学写入装置和图像形成装置

    公开(公告)号:US20110228368A1

    公开(公告)日:2011-09-22

    申请号:US13152989

    申请日:2011-06-03

    CPC classification number: G02B27/42 G02B26/124 G02B27/4227 G02B27/4283

    Abstract: An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.

    Abstract translation: 光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。 第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。 衍射面包括衍射部分和折射部分。 衍射部分的功率和折射部分的功率彼此抵消。

Patent Agency Ranking