Control techniques for an interior permanent magnet synchronous motor of an electrified vehicle
    1.
    发明授权
    Control techniques for an interior permanent magnet synchronous motor of an electrified vehicle 有权
    电气化车辆的内部永磁同步电动机的控制技术

    公开(公告)号:US09312800B2

    公开(公告)日:2016-04-12

    申请号:US14467455

    申请日:2014-08-25

    CPC classification number: H02P27/085 H02P23/04 H02P29/50

    Abstract: A system and method for controlling an interior permanent magnet synchronous motor (IPMSM) are presented. In an exemplary implementation, phase current ripple estimation techniques are utilized for variable frequency switching pulse-width modulation control of the IPMSM. In one implementation, the method includes controlling a three-phase inverter based on an initial switching frequency to generate a three-phase alternating current (AC) voltage for the IPMSM. Transformed voltages are determined in a rotating reference frame based on the three-phase AC voltage in the stationary reference frame. Current ripples are determined in the rotating reference frame based on the transformed voltages. Phase current ripples are determined in the stationary reference frame based on the current ripples in the rotating reference frame. A modified switching frequency for the three-phase inverter is determined based on the initial switching frequency and the phase current ripples. The three-phase inverter is then controlled based on the modified switching frequency.

    Abstract translation: 提出了一种用于控制内部永磁同步电动机(IPMSM)的系统和方法。 在示例性实施例中,相电流纹波估计技术用于IPMSM的可变频率切换脉宽调制控制。 在一个实现中,该方法包括基于初始开关频率来控制三相逆变器以产生用于IPMSM的三相交流(AC)电压。 基于静止参考系中的三相交流电压,在旋转参考系中确定变压电压。 基于变换的电压,在旋转参考系中确定电流波纹。 基于旋转参考系中的电流波纹,在静止参考系中确定相电流纹波。 基于初始开关频率和相电流纹波确定三相逆变器的修改开关频率。 然后基于修改的开关频率来控制三相逆变器。

    ROTARY POWDER CONTAINER WITH BRUSH
    2.
    发明申请
    ROTARY POWDER CONTAINER WITH BRUSH 审中-公开
    带刷的旋转粉末容器

    公开(公告)号:US20140251369A1

    公开(公告)日:2014-09-11

    申请号:US14111942

    申请日:2012-04-06

    Abstract: The present invention relates to a rotary powder container with a brush, wherein powder is discharged through a brush of a powder discharge case by rotating an internal case containing powder in an external case. The internal case is able to be rotated in the external case, wherein powder is discharged into a brush when a plurality of discharge holes of a powder discharge case are in line with a plurality of discharge member holes of a powder discharge member if the internal case is rotated in the external case, and powder is not discharged into a brush when the plurality of discharge holes of the powder discharge case are not in line with the plurality of discharge member holes of the powder discharge member if the internal case is rotated in the external case. The present invention is convenient to use and has an elegant look.

    Abstract translation: 本发明涉及具有刷子的旋转式粉末容器,其中通过在外部壳体中旋转包含粉末的内部壳体,粉末通过粉末排放盒的刷子排出。 内部壳体能够在外部壳体中旋转,其中当粉末排放壳体的多个排出孔与粉末排出构件的多个排出构件孔对齐时,将粉末排放到刷子中,如果内部壳体 在外部壳体中旋转,并且如果在内部壳体旋转的情况下,当粉末排出壳体的多个排出孔与粉末排出构件的多个排出构件孔不一致时,粉末不会排出到刷子中 外部情况。 本发明使用方便,外观美观。

    Method for producing propylene polymer using alkoxysilane compound containing trialkysilyl group in molecular structure
    4.
    发明授权
    Method for producing propylene polymer using alkoxysilane compound containing trialkysilyl group in molecular structure 有权
    在分子结构中使用含有三烷基甲硅烷基的烷氧基硅烷化合物制备丙烯聚合物的方法

    公开(公告)号:US07619048B2

    公开(公告)日:2009-11-17

    申请号:US11381761

    申请日:2006-05-05

    Abstract: Disclosed is a method for producing a propylene polymer using an alkoxysilane compound comprising a trialkylsilyl group in its molecular structure, specifically a method for easily producing an isotactic propylene polymer with dramatically improved melt flowability, owing to the improved reactivity of hydrogen that is provided as a molecular weight regulator, by specifically using an alkoxysilane compound comprising a trialkylsilyl group in the molecular structure thereof as an external electron donor in propylene polymerization.

    Abstract translation: 公开了一种在其分子结构中使用包含三烷基甲硅烷基的烷氧基硅烷化合物的丙烯聚合物的制备方法,具体地说,由于提供的氢的反应性得到改善,特别是易于制备具有显着改善的熔体流动性的全同立构丙烯聚合物的方法 分子量调节剂,通过在其分子结构中具体使用包含三烷基甲硅烷基的烷氧基硅烷化合物作为丙烯聚合中的外部电子给体。

    METHOD FOR PREPARATION OF SPHERICAL SUPPORT FOR OLEFIN POLYMERIZATION CATALYST
    5.
    发明申请
    METHOD FOR PREPARATION OF SPHERICAL SUPPORT FOR OLEFIN POLYMERIZATION CATALYST 有权
    用于制备烯烃聚合催化剂的球形载体的方法

    公开(公告)号:US20080064589A1

    公开(公告)日:2008-03-13

    申请号:US11614390

    申请日:2006-12-21

    CPC classification number: C08F10/00 C08F4/02 C08F4/022

    Abstract: Provided is a method for preparing a support for olefin polymerization catalysts used in polyolefin preparation processes. Particularly, provided is a novel method for preparing a support for olefin polymerization catalysts comprising the reaction of metal magnesium with an alcohol in the presence of an additive for initiating the reaction, characterized in that halogenated nitrogen compound is used as the additive for initiating the reaction, resulting in a spherical dialkoxy magnesium support.The spherical support for olefin polymerization catalysts obtained from the method of the present invention has a spherical particle shape with a smooth surface, uniform particle size distribution and 0.25 g/cc or more of bulk density, which makes it suitable for preparing a catalyst that is enough to meet the particle properties required by commercial olefin polymerization processes including, for example slurry polymerization, bulk polymerization, gas phase polymerization and the like.

    Abstract translation: 提供一种制备用于聚烯烃制备方法中的烯烃聚合催化剂载体的方法。 特别地,提供了一种制备用于烯烃聚合催化剂的载体的新方法,其包括在用于引发反应的添加剂存在下金属镁与醇的反应,其特征在于使用卤代氮化合物作为引发反应的添加剂 ,得到球形二烷氧基镁载体。 由本发明方法得到的烯烃聚合催化剂的球形载体具有平滑表面,粒度分布均匀,体积密度为0.25g / cc以上的球状颗粒形状,适合于制备催化剂, 足以满足商业烯烃聚合方法所需的颗粒性质,包括例如淤浆聚合,本体聚合,气相聚合等。

    Method for producing propylene polymer having a very high melt-flowability
    6.
    发明申请
    Method for producing propylene polymer having a very high melt-flowability 有权
    生产具有非常高的熔体流动性的丙烯聚合物的方法

    公开(公告)号:US20060223959A1

    公开(公告)日:2006-10-05

    申请号:US11157262

    申请日:2005-06-21

    CPC classification number: C08F10/00 C08F4/6465 C08F4/651

    Abstract: The present invention relates to a method for producing a propylene polymer having a very high melt flowability, specifically to a method for producing an isotactic propylene polymer having a dramatically improved melt flowability with a relatively high production yield in convenient way, by improving the reactivity of hydrogen that is served as a molecular weight controlling agent in propylene polymerization.

    Abstract translation: 本发明涉及一种具有非常高的熔体流动性的丙烯聚合物的制备方法,特别涉及一种制备具有显着改善的熔体流动性和方便的较高产率的全同立构丙烯聚合物的方法, 在丙烯聚合中用作分子量控制剂的氢。

    Method and apparatus for changing a page in E-book terminal
    9.
    发明授权
    Method and apparatus for changing a page in E-book terminal 有权
    在电子书终端中更改页面的方法和装置

    公开(公告)号:US09310972B2

    公开(公告)日:2016-04-12

    申请号:US13351307

    申请日:2012-01-17

    Applicant: Young-Joo Lee

    Inventor: Young-Joo Lee

    Abstract: A method and apparatus for changing a page when an e-book terminal is inclined is provided. The method includes sensing that the e-book terminal is inclined to a left or right side, then changing a current page to a next page when the e-book terminal is inclined to the left side or changing the current page to a previous page when the e-book terminal is inclined to the right side.

    Abstract translation: 提供一种当电子书终端倾斜时改变页面的方法和装置。 该方法包括:当电子书终端倾斜于左侧或将当前页面改变为上一页时,电子书终端倾向于左侧或右侧,然后将当前页面改变为下一页,当 电子书终端倾向于右侧。

    CONTROL TECHNIQUES FOR AN INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR OF AN ELECTRIFIED VEHICLE
    10.
    发明申请
    CONTROL TECHNIQUES FOR AN INTERIOR PERMANENT MAGNET SYNCHRONOUS MOTOR OF AN ELECTRIFIED VEHICLE 有权
    电动车辆内置永磁同步电动机的控制技术

    公开(公告)号:US20160056744A1

    公开(公告)日:2016-02-25

    申请号:US14467455

    申请日:2014-08-25

    CPC classification number: H02P27/085 H02P23/04 H02P29/50

    Abstract: A system and method for controlling an interior permanent magnet synchronous motor (IPMSM) are presented. In an exemplary implementation, phase current ripple estimation techniques are utilized for variable frequency switching pulse-width modulation control of the IPMSM. In one implementation, the method includes controlling a three-phase inverter based on an initial switching frequency to generate a three-phase alternating current (AC) voltage for the IPMSM. Transformed voltages are determined in a rotating reference frame based on the three-phase AC voltage in the stationary reference frame. Current ripples are determined in the rotating reference frame based on the transformed voltages. Phase current ripples are determined in the stationary reference frame based on the current ripples in the rotating reference frame. A modified switching frequency for the three-phase inverter is determined based on the initial switching frequency and the phase current ripples. The three-phase inverter is then controlled based on the modified switching frequency.

    Abstract translation: 提出了一种用于控制内部永磁同步电动机(IPMSM)的系统和方法。 在示例性实施例中,相电流纹波估计技术用于IPMSM的可变频率切换脉宽调制控制。 在一个实现中,该方法包括基于初始开关频率来控制三相逆变器以产生用于IPMSM的三相交流(AC)电压。 基于静止参考系中的三相交流电压,在旋转参考系中确定变压电压。 基于变换的电压,在旋转参考系中确定电流波纹。 基于旋转参考系中的电流波纹,在静止参考系中确定相电流纹波。 基于初始开关频率和相电流纹波确定三相逆变器的修改开关频率。 然后基于修改的开关频率来控制三相逆变器。

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