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    • 1. 发明专利
    • Washing machine
    • 洗衣机
    • JP2014039596A
    • 2014-03-06
    • JP2012182324
    • 2012-08-21
    • Toshiba Corp株式会社東芝Toshiba Consumer Electronics Holdings Corp東芝コンシューマエレクトロニクス・ホールディングス株式会社Toshiba Home Appliances Corp東芝ホームアプライアンス株式会社
    • HOSOITO TSUYOSHIMAEKAWA SARISHIBANO YUSUKE
    • D06F33/02D06F37/40H02P6/08
    • PROBLEM TO BE SOLVED: To provide a washing machine capable of performing control with high accuracy by calculation with a small processing load without detecting a phase current of a motor.SOLUTION: In a washing machine of this embodiment, a control circuit performs what is called voltage phase control in which: an energization pattern is determined according to a position signal which is output by a plurality of position sensors as a result of detection of a rotor rotation position of a permanent magnet motor; an energization control signal is output to an inverter circuit; and control is performed in such a manner that, during washing or rinsing operation time in which the motor rotates forward/backward alternately, the phase of the energization pattern is advanced by a prescribed amount according to the rotational frequency of the motor detected based on the position signal. At that time, the control circuit detects the rotational frequency of the motor by output intervals of the position signal output from the plurality of position sensors respectively.
    • 要解决的问题:提供一种能够以较小的处理负荷通过计算,而不检测电动机的相电流而以高精度进行控制的洗衣机。解决方案:在本实施例的洗衣机中,控制电路执行所谓的 电压相位控制,其中:根据由多个位置传感器输出的位置信号确定通电模式,作为检测永磁电动机的转子旋转位置的结果; 通电控制信号输出到逆变器电路; 以这样的方式进行控制,使得在电机正向/反向交替旋转的洗涤或漂洗操作时间期间,根据基于电动机检测到的电动机的旋转频率使通电模式的相位提前规定量 位置信号。 此时,控制电路通过分别从多个位置传感器输出的位置信号的输出间隔来检测电动机的转速。
    • 2. 发明专利
    • Inverter device and power steering device
    • 逆变器装置和功率转向装置
    • JP2013198202A
    • 2013-09-30
    • JP2012060307
    • 2012-03-16
    • Toshiba Corp株式会社東芝Nsk Ltd日本精工株式会社
    • MAEKAWA SARIKUMAGAI SHINFUKINUKI SHIGERUAWAZU MINORU
    • H02M7/48B62D5/04
    • H02P6/12B62D5/0463B62D5/0487H02H3/08H02H7/122H02M1/32H02M7/5387H02P6/24
    • PROBLEM TO BE SOLVED: To provide an inverter device that allows safely turning off a switch circuit configured by MOSFETs even if a short-circuit current flows into an inverter circuit.SOLUTION: A switch circuit connected between a DC power supply and an inverter circuit is configured so that two N-channel semiconductor switching elements are connected in series in the reverse direction. A control circuit outputs a control signal for controlling the switching of the inverter circuit, stops the output of the control signal when an operating condition is met to cause all the switching elements constituting the inverter circuit to turn off, and performs a protective operation that turns off the switch circuit. In the protective operation, the control circuit turns off the switch circuit after stopping the output of the control signal to the inverter circuit.
    • 要解决的问题:提供即使短路电流流入逆变器电路,也可以安全地切断由MOSFET构成的开关电路的逆变器装置。解决方案:连接在直流电源与逆变器电路之间的开关电路是 被配置为使得两个N沟道半导体开关元件沿相反方向串联连接。 控制电路输出用于控制逆变器电路的切换的控制信号,当操作条件满足时停止控制信号的输出,使得构成逆变器电路的所有开关元件关闭,并进行转向的保护操作 关闭开关电路。 在保护动作中,控制电路在停止向逆变电路输出控制信号后,断开开关电路。
    • 3. 发明专利
    • Motor control apparatus
    • 电动机控制装置
    • JP2011067054A
    • 2011-03-31
    • JP2009217225
    • 2009-09-18
    • Toshiba Corp株式会社東芝
    • MAEKAWA SARI
    • H02P21/00H02P6/18H02P27/04
    • PROBLEM TO BE SOLVED: To provide a motor control apparatus for energizing a magnetizing and demagnetizing current without any delay in a configuration for controlling a permanent magnet motor by a position sensorless system and for performing energization to change magnetic flux of a permanent magnet. SOLUTION: In the motor control apparatus 50, a speed-position estimation unit 55 estimates a rotational position θ of a rotor 3 based on a voltage equation that is true for the permanent magnet motor 1, and calculates a d-axis current and a q-axis current based on the estimated rotational position θ, thus performing vector control to the permanent magnet motor 1. Then, a magnetization control change unit 63 changes between control for giving a current command Id_ref in the vector control to a d-axis side at a current control unit 67 and control for direct output of a voltage command Vd_ref to a dq/uvw coordinates converter 71 instead of the current command Id_ref for a period when a magnetization control unit 61 performs magnetization control when the motor control apparatus 50 has incorporated PI control into a feedback loop of the vector control. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种电动机控制装置,用于通过无位置传感器系统来控制永磁电动机的配置不会延迟地激励磁化和消磁电流,并且用于执行通电以改变永磁体的磁通量 。 解决方案:在马达控制装置50中,速度位置估计单元55基于对于永磁电动机1为真的电压方程来估计转子3的旋转位置θ,并计算d轴电流 以及基于估计旋转位置θ的q轴电流,从而对永磁电动机1进行矢量控制。然后,磁化控制改变单元63在用于将矢量控制中的电流指令Id_ref赋予d- 在电流控制单元67处,并且当电磁控制装置50在磁化控制单元61执行磁化控制的时段,而不是电流指令Id_ref,直接输出电压指令Vd_ref到dq / uvw坐标转换器71的控制 将PI控制并入矢量控制的反馈回路中。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Motor control apparatus and washing machine
    • 电机控制装置和洗衣机
    • JP2011066992A
    • 2011-03-31
    • JP2009214494
    • 2009-09-16
    • Toshiba Corp株式会社東芝
    • MAEKAWA SARI
    • H02P6/10D06F33/02H02P21/00H02P27/04
    • PROBLEM TO BE SOLVED: To provide a motor control apparatus that prevents the generation of noise when changing a magnetization state of a permanent magnet that is disposed in a rotor and has low coercive force. SOLUTION: A magnetization control unit 58 simultaneously outputs a d-axis current command Id#com2 and a q-axis current command value Iq_refc, when changing an amount of magnetization of an alnico magnet 9b disposed in the rotor 3 of a permanent magnet motor 1 by energizing a coil 5 via an inverter circuit 52, thus simultaneously energizing a d-axis current Id and a q-axis current Iq, and generating magnet torque so that reluctance torque generated by following energization of the d-axis current Id is canceled. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种电动机控制装置,其在改变设置在转子中的永磁体的磁化状态并且具有低的矫顽力时防止产生噪声。 解决方案:磁化控制单元58同时输出d轴电流指令Id#com2和q轴电流指令值Iq_refc,当设置在转子3中的铝镍钴磁体9b的永久磁化量变化时, 通过逆变器电路52对线圈5通电,从而同时给d轴电流Id和q轴电流Iq赋能,并产生磁转矩,使得通过跟随d轴电流Id的通电产生的磁阻转矩 被取消。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Motor control apparatus, drum-type washing machine and method for controlling magnetization of permanent magnet motor
    • 电机控制装置,滚筒式洗衣机及控制永磁电机磁化的方法
    • JP2010226914A
    • 2010-10-07
    • JP2009073654
    • 2009-03-25
    • Toshiba Corp株式会社東芝
    • SHIBAYAMA TAKESHIMAEKAWA SARI
    • H02P21/00D06F33/02H02P27/04
    • PROBLEM TO BE SOLVED: To provide a motor control apparatus capable of suppressing unexpected magnetization or demagnetization, without in a permanent magnet arranged in a rotor during the operation of a motor. SOLUTION: A magnetization-change suppressor 69 prevents demagnetization of the permanent magnet 9b arranged to the rotor 3 for the motor 1, because a magnetization-current command Id - com3 is output so that an exciting current Id is made to flow, at the same time, when the level of a torque current Iq exceeds a specified threshold, thus improving the operational efficiency of the motor 1. In this case, the magnetization-change suppressor 69 determines the magnetization-current command Id - com3 by Id - com3=(Iq-a)×b (for Iq>a) and increases the level of the exciting current Id to be superimposed, in response to the increase in the level of the torque current Iq. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种能够抑制意外的磁化或退磁的电动机控制装置,而不需要在电动机的操作期间在转子中布置永磁体。 解决方案:磁化强度变化抑制器69防止设置在马达1的转子3上的永磁体9b的退磁,因为输出磁化电流指令Id - com3,使得激励 使电流Id同时流过,同时,当转矩电流Iq的电平超过规定的阈值时,从而提高电机1的运行效率。在这种情况下,磁化变化抑制器69确定磁化电流 命令Id - com3由Id - com3 =(Iq-a)×b(对于Iq> a),并且增加要叠加的励磁电流Id的电平, 响应于转矩电流Iq的水平的增加。 版权所有(C)2011,JPO&INPIT
    • 6. 发明专利
    • Permanent magnet motor and washing machine
    • 永磁电机和洗衣机
    • JP2010130719A
    • 2010-06-10
    • JP2008299427
    • 2008-11-25
    • Toshiba Corp株式会社東芝
    • MAEKAWA SARI
    • H02K1/27D06F25/00D06F33/02H02K1/22
    • D06F37/206H02K1/2786H02K21/22H02K29/03
    • PROBLEM TO BE SOLVED: To suppress the generation of a torque ripple and cogging torque even if the proportion of permanent magnets which are low in coercive force is lowered.
      SOLUTION: In this permanent magnet motor which includes the permanent magnets each having a plurality of magnetic poles in a core of a rotor 3, and has magnetic pole teeth each corresponding to a winding of each phase at a stator 2, the permanent magnets are constituted of two kinds of permanent magnets 9a, 9b different in coercive force, and arranged in a substantially-annular shape so that one magnetic pole is of one kind, and also constituted so that an interval at which the permanent magnet 9b which is relatively low in coercive force in the rotor 3 is arranged, and an interval between the mutual magnetic pole teeth corresponding to the windings of the same phases in the stator 2 differ from each other.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:即使矫顽力低的永磁体的比例降低,也可以抑制转矩脉动和齿槽转矩的产生。 解决方案:在这种永磁体中,每个永久磁铁在转子3的铁心中具有多个磁极,并且具有分别对应于定子2上每相绕组的磁极齿,永磁体 磁体由矫顽力不同的两种永久磁铁9a,9b构成,并且以大致环形的形状配置,使得一个磁极为一种,也可以构成为使永久磁铁9b为 配置转子3的矫顽力相对较低,与定子2中相同相位的绕组对应的互磁极齿之间的间隔彼此不同。 版权所有(C)2010,JPO&INPIT
    • 9. 发明专利
    • Motor controller and motor control method
    • 电机控制器和电机控制方法
    • JP2008211929A
    • 2008-09-11
    • JP2007047303
    • 2007-02-27
    • Toshiba Corp株式会社東芝
    • NAGAI KAZUNOBUMAEKAWA SARI
    • H02P21/00H02P27/04
    • PROBLEM TO BE SOLVED: To provide a motor controller achieving a more reliable current sensor-less system. SOLUTION: A vector control device 25 is provided with a first current detection portion 21, which detects a winding current of a motor 7 based on a terminal voltage of a resistor element 6 inserted into a DC power source line 3b and a PWM signal, a second current detection portion 22, which detects the winding current based on a rotational speed signal ω obtained from a rotational position sensor 8 and the constant of the motor 7, and a current selection portion 23, which selects either one of the detection results. Vector control is applied to the motor 7 based on current commands Idr, Iqr given from the outside and one of the detection results by the current selection portion 23. Specifically, the first current detection portion 21 has a determination portion 26, which determines the effectiveness of its own detection result based on the transition state of each phase PWM signal. The current selection portion 23 selects the detection results by the first and second current detection portions 21, 22 according to the effectiveness of the determination results. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种电机控制器,实现更可靠的无电流传感器系统。 解决方案:矢量控制装置25设置有第一电流检测部分21,该第一电流检测部分21基于插入到直流电源线3b中的电阻器元件6的端子电压和PWM来检测电动机7的绕组电流 信号,第二电流检测部分22,其基于从旋转位置传感器8获得的转速信号ω和电动机7的常数来检测绕组电流,以及电流选择部分23,其选择检测 结果。 基于从外部给出的电流指令Idr,Iqr以及当前选择部分23的检测结果之一将矢量控制应用于电动机7.具体而言,第一电流检测部分21具有确定部分26,其确定有效性 根据各相PWM信号的转换状态,检测自身的检测结果。 当前选择部分23根据确定结果的有效性来选择第一和第二电流检测部分21,22的检测结果。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Apparatus and method of controlling motor and computer program
    • 控制电机和计算机程序的装置和方法
    • JP2005210839A
    • 2005-08-04
    • JP2004015353
    • 2004-01-23
    • Toshiba Corp株式会社東芝
    • NAGAI KAZUNOBUMAEKAWA SARIKOMINATO SHINICHI
    • H02P6/08
    • PROBLEM TO BE SOLVED: To provide an apparatus for controlling a motor which can realize a rotating position detection using a resolver with a constitution having a low cost and good controlling response. SOLUTION: A microcomputer 21 outputs a clock signal S1 having a period of double as large as a conveying period in a PWM modulation. A synchronous excitation signal forming circuit 11 forms a sine wave-like excitation signal S2 by low-pass filtering the clock signal S1. And, when the microcomputer 21 performs A/D conversion by synchronizing a cosine signal S3 and a sine signal S4 outputted by the resolver 2 disposed in the motor 1 with a carrier period, cosine data Dx and sine data Dy are obtained as a difference of the continuous twice A/D conversion results, and the rotary position Θ of a rotor is calculated by using a function arctan. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种用于控制电动机的装置,其可以使用具有低成本和良好控制响应的结构的解算器来实现旋转位置检测。 解决方案:微计算机21在PWM调制中输出具有传输周期的双倍的周期的时钟信号S1。 同步激励信号形成电路11通过对时钟信号S1进行低通滤波来形成正弦波状激励信号S2。 并且,当微计算机21通过使设置在电动机1中的解析器2输出的余弦信号S3和正弦信号S4与载波周期同步来进行A / D转换时,获得余弦数据Dx和正弦数据Dy作为 连续两次A / D转换结果,并且通过使用函数arctan计算转子的旋转位置Θ。 版权所有(C)2005,JPO&NCIPI