会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Method and apparatus of reducing acoustic noise in switched reluctance
electric motor
    • 降低开关磁阻电机噪声的方法和装置
    • US5973462A
    • 1999-10-26
    • US50881
    • 1998-03-30
    • Ramani R. KalpathiNing LiuScott E. BlackburnSergei F. Kolomeitsev
    • Ramani R. KalpathiNing LiuScott E. BlackburnSergei F. Kolomeitsev
    • H02P25/08H02K23/00
    • H02P25/08
    • A switched reluctance motor drive includes a noise reduction circuit configured to control the decay of current when a motor phase is switched from active to inactive. The current decay is controlled to occur in two stages: a first portion and a second portion. The first portion is controlled by alternately activating and deactivating one of the two switches in the two switch drive topology to obtain a current profile conforming to a predetermined profile. The current decay in the second portion of the inactive interval occurs by keeping both switches off so that it decays naturally. The duration of the first portion of the inactive interval is different for each motor phase, as is the duty cycle of the switch gating signal driving the switch that is alternately activated and deactivated. The scheme reduces the acoustic noise generated during operation of the motor.
    • 开关磁阻电动机驱动器包括噪声降低电路,其被配置为当电动机相位从有效切换到不活动时控制电流的衰减。 电流衰减被控制在两个阶段中:第一部分和第二部分。 通过交替地激活和去激活两个开关驱动器拓扑中的两个开关中的一个以获得符合预定配置的电流曲线来控制第一部分。 无效间隔的第二部分中的电流衰减是通过将两个开关保持关闭而使其自然衰减而发生的。 无效间隔的第一部分的持续时间对于每个电动机相位是不同的,开关门控信号的占空比驱动交替地激活和去激活的开关。 该方案可减少电机运行过程中产生的声音噪声。
    • 2. 发明授权
    • System for controlling operation of a switched reluctance motor between
multi-phase operating mode and a reduced phase operating mode
    • 用于控制开关磁阻电动机在多相工作模式和减少相位运行模式之间运行的系统
    • US5861727A
    • 1999-01-19
    • US633600
    • 1996-04-17
    • Scott E. BlackburnSergei F. Kolomeitsev
    • Scott E. BlackburnSergei F. Kolomeitsev
    • H02P25/08H02P7/00
    • H02P23/0027H02P25/08
    • An apparatus for controlling a switched reluctance machine changes the operating modes between a single-phase operating mode, and a multi-phase operating mode. The switched reluctance motor includes a rotatable rotor, a stator, and a plurality of stator windings defining a corresponding plurality of machine phases. When in the multi-phase mode, all of the plurality of stator windings corresponding to the plurality of machine phases are energized. When in the single-phase mode, stator windings corresponding to a single, selected machine phase are energized. The apparatus includes a logic circuit for sensing a speed of the rotor and generating a speed signal in response thereto, and a comparator circuit. The comparator circuit is responsive to the generated speed signal and is operative for changing the operating mode of the motor from the multi-phase mode to the single-phase mode when the rotor speed reaches a first predetermined level, and for changing the operating mode of the machine from the single-phase mode to the multi-phase mode when the rotor speed reaches a second predetermined level that is less than the first predetermined level. The first and second levels are offset and define a hysteresis operating band to prevent undesirable oscillation or "hunting" between the single-phase mode, and the multi-phase mode. In the single-phase mode, the current reference used for the energized stator windings associated with the selected machine phase is higher, than the corresponding current reference in the multi-phase mode.
    • 用于控制开关磁阻电机的装置在单相工作模式和多相工作模式之间改变操作模式。 开关磁阻电动机包括可旋转的转子,定子和限定相应的多个机械相的多个定子绕组。 当处于多相模式时,对应于多个机械相位的多个定子绕组的所有励磁。 当处于单相模式时,对应于单个选定机械相位的定子绕组通电。 该装置包括用于感测转子的速度并响应于此产生速度信号的逻辑电路和比较器电路。 比较器电路响应于所产生的速度信号,并且当转子速度达到第一预定电平时,可操作地将电动机的工作模式从多相模式改变为单相模式,并且用于改变 当转子速度达到小于第一预定水平的第二预定水平时,机器从单相模式到多相模式。 第一级和第二级被偏移并且限定滞后操作频带以防止单相模式和多相模式之间的不期望的振荡或“振荡”。 在单相模式中,与所选机器相关联的通电定子绕组所使用的电流参考值高于多相模式中对应的电流参考值。
    • 3. 发明授权
    • C-Dump topology noise reduction
    • C-Dump拓扑降噪
    • US5920176A
    • 1999-07-06
    • US136162
    • 1998-08-18
    • Scott E. BlackburnSergei F. Kolomeitsev
    • Scott E. BlackburnSergei F. Kolomeitsev
    • H02P25/08H02P1/46
    • H02P25/092
    • A method and circuit for controlling a switched reluctance motor are provided. The method includes the steps of controlling a current in a phase coil of a motor phase of the motor during an active stage of the motor phase and controlling the current in the phase coil during an inactive stage of the motor phase. The latter step includes the substep of increasing the level of current in the phase coil for a predetermined period of time during the inactive stage of the motor phase. By increasing the current level during the inactive stage, the rate of current dissipation is reduced, thereby reducing acoustic noise. A circuit in accordance with the present invention includes a pair of one-shot circuits connected together in series and responsive to the end of the active stage of the motor phase. The second one-shot circuit generates an output signal that closes a switch connected to a phase coil of a motor phase of the motor for a predetermined period of time during the inactive stage of the motor phase. Closing the switch causes a level of current in the phase coil to increase during the inactive stage of the motor phase, thereby slowing the rate of current dissipation and reducing acoustic noise.
    • 提供了一种用于控制开关磁阻电动机的方法和电路。 该方法包括以下步骤:在电动机相的有效阶段期间控制电动机的电动机相位的相位线圈中的电流,并且在电动机相位的非活动阶段期间控制相线圈中的电流。 后一步骤包括在电机阶段的非活动阶段期间增加相位线圈中的电流电流达预定时间段的子步骤。 通过在非活动阶段增加电流电平,电流消耗的速率降低,从而降低声学噪声。 根据本发明的电路包括串联连接在一起并且响应于电动机相的有源级的结束的一对单触发电路。 第二单向电路产生一个输出信号,该输出信号在马达阶段的非活动阶段期间闭合连接到马达的马达相位的相位线圈一段预定的时间段。 关闭开关会导致相位线圈中的电流水平在电机相位的无效阶段期间增加,从而减慢电流消耗的速率并降低声学噪声。
    • 4. 发明授权
    • Electrically operated clutch
    • 电动离合器
    • US5934430A
    • 1999-08-10
    • US879299
    • 1997-06-19
    • Sergei F. KolomeitsevTroy S. ReinoehlJ. Michael LewisMichael Lee BassettRock LeRoy Hartshorn
    • Sergei F. KolomeitsevTroy S. ReinoehlJ. Michael LewisMichael Lee BassettRock LeRoy Hartshorn
    • F16D27/00F16D28/00F16D27/112
    • F16D28/00
    • A motor vehicle clutch includes an axis of rotation, a pressure plate, a cover, an apply spring, a release bearing, a stator housing, a stator, a rotor, a rotor housing and a plurality of cam followers. The pressure plate is concentric with the axis of rotation. The cover extends radially over the pressure plate. The apply spring is disposed between the cover and the pressure plate and biases the pressure plate away from the cover. The release bearing is concentric with and axially displaceable along the axis of rotation and is connected to the apply spring for selectively deflecting the spring with axial movement. The stator housing is stationary and is concentric with the axis of rotation. The stator is fixed within the stator housing and has a plurality of poles with windings there about. The rotor is also concentric to the axis of rotation and is operably excited by the stator. The rotor housing is fixed to the rotor. The rotor housing has a plurality of cam ramps arcuately disposed about the axis. The cam ramps smoothly increase in axial height in a first arcuate direction of rotation. The cam followers are disposed between the rotor housing and the release bearing and are in axially engagement with the cam ramps.
    • 机动车辆离合器包括旋转轴,压力板,盖,施加弹簧,释放轴承,定子壳体,定子,转子,转子壳体和多个凸轮从动件。 压板与旋转轴线同心。 盖子在压板上径向延伸。 施加弹簧设置在盖和压板之间,并且将压板偏压离开盖。 释放轴承与旋转轴线同心并且可轴向移动,并连接到施加弹簧,用于随着轴向运动选择性地偏转弹簧。 定子壳体是静止的并且与旋转轴线同心。 定子固定在定子壳体内,并且具有多个绕其绕组的极点。 转子也与旋转轴线同心,并被定子可操作地激发。 转子壳体固定在转子上。 转子壳体具有围绕轴线弧形设置的多个凸轮斜面。 凸轮在第一弧形旋转方向上平滑地增加轴向高度。 凸轮从动件设置在转子壳体和释放轴承之间并且与凸轮斜面轴向接合。
    • 5. 发明申请
    • SYSTEMS AND METHODS FOR MAXIMIZING THE OUTPUT OF A VEHICLE ALTERNATOR
    • 用于最大化车辆输出的系统和方法
    • US20070268003A1
    • 2007-11-22
    • US11751500
    • 2007-05-21
    • Sergei F. KolomeitsevThomas James Gallagher
    • Sergei F. KolomeitsevThomas James Gallagher
    • H02P9/00H02H7/06H02P11/00
    • H02H7/06H02P9/006H02P29/60
    • Systems and method for mixing the output of a vehicle alternator throughout any operating temperature range include a first temperature sensor for measuring a first temperature and a second temperature sensor for measuring a first temperature. A first temperature module compares the first temperature with a first temperature reference to determine a first temperature error, and to calculate a first duty cycle reference based on the first temperature error. A second temperature module compares the second temperature with a second temperature reference based on the second temperature error, and to calculate a second duty cycle reference based on the second temperature error. A duty cycle selection module selects the lesser of the first duty cycle reference or the second duty cycle reference as a maximum system duty cycle. A duty cycle control module regulates a field current of the vehicle alternator based on the maximum system duty cycle.
    • 用于在任何工作温度范围内混合车辆交流发电机的输出的系统和方法包括用于测量第一温度的第一温度传感器和用于测量第一温度的第二温度传感器。 第一温度模块将第一温度与第一温度参考值进行比较以确定第一温度误差,并且基于第一温度误差来计算第一占空比参考。 第二温度模块基于第二温度误差将第二温度与第二温度参考值进行比较,并且基于第二温度误差来计算第二占空比参考。 占空比选择模块选择第一占空比参考值或第二占空比参考值中较小的一个作为最大系统占空比。 占空比控制模块基于最大系统占空比来调节车辆交流发电机的励磁电流。
    • 6. 发明授权
    • Magnet shaping and pole concentration for reduction of cogging torque in permanent magnet motors
    • 磁铁整形和极点集中用于减少永磁电机的齿槽转矩
    • US06784582B1
    • 2004-08-31
    • US09993009
    • 2001-11-19
    • Sergei F. KolomeitsevJohn R. Suriano
    • Sergei F. KolomeitsevJohn R. Suriano
    • H02K2112
    • H02K1/2733
    • A rotor for a permanent magnet motor with a rotor yoke and a permanent magnet ring mounted on the rotor yoke, the magnet ring having a plurality of circumferentially spaced poles. One of the rotor yoke and the permanent magnet ring is an annular member including depressed portions along a peripheral edge located around a midpoint between each pole. The depressed portions are shaped so the motor produces a sinusoidal flux density. The other of the rotor yoke and the permanent magnet ring is an annular ring. In another aspect, the rotor has a rotor yoke and a permanent magnet ring mounted on the rotor yoke. The permanent magnet ring includes a plurality of circumferentially spaced poles. One of the rotor yoke and the permanent magnet ring includes a plurality of depressions along an outer peripheral edge shaped so the motor produces a sinusoidal flux density during operation. Each of the plurality of depressions is located around a junction defined by two poles. In either aspect, the rotor yoke can be skewed, and the magnet ring can be tapered.
    • 一种用于永磁电动机的转子,具有转子轭和安装在转子轭上的永磁环,磁环具有多个周向间隔开的极。 转子轭和永磁体环之一是环形构件,其包括围绕每个极之间的中点周围的周缘的凹陷部。 凹陷部分成形为使得电动机产生正弦通量密度。 转子轭和永磁环中的另一个是环形圈。 另一方面,转子具有安装在转子轭上的转子轭和永磁环。 永磁环包括多个周向间隔开的极。 转子轭和永磁体环中的一个包括沿着外周边缘形成的多个凹陷,使得电动机在操作期间产生正弦通量密度。 多个凹陷中的每一个位于由两个极限定的连接点周围。 在任一方面,转子轭可以是偏斜的,并且磁环可以是锥形的。
    • 7. 发明授权
    • Rotating electric machine with sloped tooth surfaces for cogging torque reduction
    • 旋转电机具有倾斜的齿面,用于齿槽转矩降低
    • US06744171B1
    • 2004-06-01
    • US09974080
    • 2001-10-09
    • Sergei F. Kolomeitsev
    • Sergei F. Kolomeitsev
    • H02K114
    • H02K1/146H02K29/03
    • A stator tooth design for a stator core of a permanent magnet motor. The tooth surface comprises a plurality of surface segments, wherein each surface segment of the plurality of surface segments joins an adjacent surface segment of the plurality of surface segments at an obtuse angle, preferably between 160 and 170 degrees. Alternatively, the tooth surface comprises a single essentially straight surface segment. Each of the plurality of surface segments has a starting edge and an ending edge. Preferably, the starting edge of a surface segment lies along a first circumferential path a predetermined radial distance from the outside edge of the stator core and the ending edge of the surface segment lies along a second circumferential path either closer to or further from the outside edge. The first circumferential path and the second circumferential path can be concentric to the outside edge of the stator core.
    • 永磁电机定子铁心的定子齿设计。 齿表面包括多个表面段,其中多个表面段中的每个表面段以多个表面段的相邻表面段以钝角,优选地在160和170度之间接合。 或者,齿表面包括单个基本上直的表面段。 多个表面段中的每一个具有起始边缘和终止边缘。 优选地,表面段的起始边缘沿着第一周向路径沿着与定子铁心的外边缘预定的径向距离,并且表面段的末端边缘沿着第二圆周路径设置,该第二圆周路径更靠近或远离外边缘 。 第一圆周路径和第二圆周路径可以与定子铁芯的外边缘同心。
    • 8. 发明授权
    • Variable reluctance motor having bifurcated stator poles
    • 具有分叉定子极的可变磁阻电动机
    • US6025668A
    • 2000-02-15
    • US569365
    • 1995-12-08
    • Sergei F. Kolomeitsev
    • Sergei F. Kolomeitsev
    • H02K1/14H02K19/10H02K29/03H02K1/16H02K1/24
    • H02K29/03H02K19/103H02K1/14
    • A variable reluctance electric motor includes a hollow cylindrical stator having a plurality of radially inwardly extending poles. Each of the stator poles is generally rectangular in cross sectional shape and is bifurcated into two stator teeth at its radially innermost end by a central, longitudinally extending slot. The outer circumferential edges of the stator pole teeth are beveled at their respective junctions with the sides of the stator pole. A stator pole gap width is defined between adjacent stator poles. A slot width is defined within each of the stator poles between the adjacent longitudinally extending edges of the slot. The ratio of the stator pole gap width to the stator pole slot width is in the range of from about 1.8 to about 2.3. A cylindrical rotor is co-axially supported within the stator for relative rotational movement. The rotor has a plurality of radially outwardly extending poles formed thereon. Each of the rotor poles is generally rectangular in cross sectional shape. The outer circumferential edges of the rotor poles are beveled at their respective junctions with the sides of the rotor pole to provide a tapered end. Each of the rotor poles defines a width which is measured at the outer circumferential surface thereof, extending between the two beveled edges. The rotor poles also defines a pitch which is measured from one point on a first rotor pole to the same point on the adjacent rotor pole. The ratio of the rotor pole width to the rotor pole pitch is in the range of from about 0.40 to about 0.47. Preferably, a motor having N stator poles will have 2.multidot.N stator pole teeth, and a rotor employed in such a motor 20 will have (2.multidot.N)+2 rotor poles.
    • 可变磁阻电动机包括具有多个径向向内延伸的极的中空圆柱形定子。 每个定子极通常是矩形的横截面形状,并且在其径向最内端由中心纵向延伸的槽分叉成两个定子齿。 定子极齿的外周边缘在其与定子极的侧面的各自的接合部处是倾斜的。 定子极间隙宽度限定在相邻的定子极之间。 在槽的相邻纵向延伸边缘之间的每个定子极中限定槽宽度。 定子极间隙宽度与定子极槽宽度的比值在约1.8至约2.3的范围内。 圆柱形转子同轴地支撑在定子内以进行相对旋转运动。 转子具有形成在其上的多个径向向外延伸的极。 每个转子极通常是矩形的横截面形状。 转子极的外周边缘在其与转子极的侧面的各个接合点处倾斜以提供锥形端部。 每个转子极限定了在其外圆周表面处测量的宽度,其在两个倾斜边缘之间延伸。 转子极还限定了从第一转子极上的一个点到相邻转子极上的相同点测得的间距。 转子极宽与转子极间距的比例在约0.40至约0.47的范围内。 优选地,具有N个定子极的电动机将具有2xN个定子极齿,并且在这种电动机20中使用的转子将具有(2xN)+2个转子极。
    • 9. 发明授权
    • Dual-sectioned switched reluctance motor
    • 双截面开关磁阻电机
    • US5668430A
    • 1997-09-16
    • US634106
    • 1996-04-17
    • Sergei F. Kolomeitsev
    • Sergei F. Kolomeitsev
    • H02K1/14H02K16/00H02K19/10H02K29/03H02K37/04H02K1/22H02K17/00
    • H02K16/00H02K19/103H02K29/03
    • A switched reluctance motor includes a stator defining a plurality of radially-inwardly-extending poles and a rotor defining a plurality of radially-outwardly-extending poles. The poles of the stator and the rotor are respectively divided into at least two longitudinal sections, with each pole section featuring a different shape when viewed in radial cross-section. The shape of one rotor pole section is such as to subdivide the pole into three teeth, namely, a central tooth flanked on either side by a side tooth, further characterized in that the shape of the central and side teeth are symmetric relative to a radius bisecting the central tooth. In a preferred embodiment, the circumferential spacing between the central tooth and each side tooth of one rotor pole is less than the circumferential spacing between the opposed side teeth of adjacent rotor poles.
    • 开关磁阻电动机包括限定多个径向向内延伸的极的定子和限定多个径向向外延伸的极的转子。 定子和转子的极分别分成至少两个纵向部分,当从径向横截面观察时,每个极部分具有不同的形状。 一个转子磁极部分的形状是将磁极细分成三个齿,即一个侧面由侧齿侧面的中心齿,其特征还在于,中心齿和侧齿的形状相对于半径为对称 平分中枢牙。 在优选实施例中,一个转子极的中心齿和每个侧齿之间的周向间隔小于相邻转子极的相对侧齿之间的圆周间隔。