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公开(公告)号：US09631830B2
公开(公告)日：2017-04-25
申请号：US14420306
申请日：2013-05-10
Inventor： Ryuta Sasaki
CPC classification number: F24F11/30 , F24F11/62 , F24F11/77 , G05B15/02 , G05D7/0629 , H02P6/08 , H02P23/0004 , Y02B30/746
Abstract: A motor control device which controls a motor for driving a blower unit, comprises a torque command generating section which obtains a motor speed of the motor and generates a torque command which causes an air flow of air supplied from the blower unit to coincide with a target air flow; wherein the torque command generating section is configured to calculate the torque command as a product of a polynomial of variables derived by dividing the target air flow by the motor speed, and a square of the motor speed.
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公开(公告)号：US10690138B2
公开(公告)日：2020-06-23
申请号：US14420456
申请日：2013-05-10
Inventor： Ryuta Sasaki , Yasuyuki Yokouchi , Yasushi Kato
Abstract: A motor control device which controls a motor for driving a blower unit, comprises: a target motor output calculating section which calculates a target motor output which causes an air flow of air supplied from the blower unit to coincide with a target air flow; and an operation command generating section which obtains the motor output of the motor, and generates a command for controlling a physical amount of the motor such that the motor output coincides with the target motor output based on a result of comparison between the motor output and the target motor output; and the target motor output calculating section is configured to calculate the target motor output as a product of a polynomial of variables derived by dividing the target air flow by the motor speed, and a cube of the motor speed.
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3.发明授权公开(公告)号：US10469013B2
公开(公告)日：2019-11-05
申请号：US16287601
申请日：2019-02-27
Inventor： Mitsuhiro Sakamoto , Yasuyuki Yokouchi , Daisuke Sonoda , Ryuta Sasaki
Abstract: A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
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Patent Agency Ranking
公开(公告)号：US20150226444A1
公开(公告)日：2015-08-13
申请号：US14420306
申请日：2013-05-10
Inventor： Ryuta Sasaki
CPC classification number: F24F11/30 , F24F11/62 , F24F11/77 , G05B15/02 , G05D7/0629 , H02P6/08 , H02P23/0004 , Y02B30/746
Abstract: A motor control device which controls a motor for driving a blower unit, comprises a torque command generating section which obtains a motor speed of the motor and generates a torque command which causes an air flow of air supplied from the blower unit to coincide with a target air flow; wherein the torque command generating section is configured to calculate the torque command as a product of a polynomial of variables derived by dividing the target air flow by the motor speed, and a square of the motor speed.
Abstract translation: 控制用于驱动鼓风机单元的电动机的电动机控制装置包括转矩指令生成部，其获得电动机的电动机转速，并产生使从鼓风机单元供给的空气的气流与目标一致的转矩指令 气流; 其特征在于，所述转矩指令生成部构成为将所述目标空气流除以所述电动机转速而得到的变量的多项式和所述电动机转速的平方的乘积来计算所述转矩指令。
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5.发明授权公开(公告)号：US10270377B2
公开(公告)日：2019-04-23
申请号：US15325309
申请日：2016-01-26
Inventor： Mitsuhiro Sakamoto , Yasuyuki Yokouchi , Daisuke Sonoda , Ryuta Sasaki
Abstract: A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
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公开(公告)号：US09625172B2
公开(公告)日：2017-04-18
申请号：US14423937
申请日：2013-04-26
Inventor： Ryuta Sasaki
CPC classification number: F24F11/006 , F04D27/00 , F24F11/0079 , F24F11/30 , F24F11/62 , F24F11/77 , G05B15/02 , H02P6/28 , Y02B30/746
Abstract: A motor control device according to the present invention is a device for controlling a motor driving an air blower. The motor control device includes: an air flow rate calculator configured to calculate an air flow rate supplied by the air blower; and a torque command generator configured to multiply a motor torque by a square of a ratio of a target air flow rate to the air flow rate or multiply a previously outputted torque command by the square of the ratio of the target air flow rate to the air flow rate, and generate a result of the multiplication as a torque command.
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公开(公告)号：US11601080B2
公开(公告)日：2023-03-07
申请号：US17290721
申请日：2019-10-16
Inventor： Ryuta Sasaki , Toru Tazawa
Abstract: A motor control device controls a current of a motor based on a torque command, the current being separated into a d-axis current and a q-axis current orthogonal to the d-axis current, the torque command being a target value of a torque of the motor. The motor control device includes a current vector controller that receives input of a d-axis current command and a q-axis current command, and generates a d-axis voltage command and a q-axis voltage command, a difference between a value of the d-axis current and a value of the d-axis current command being zero, a difference between a value of the q-axis current and a value of the q-axis current command being zero, a q-axis current command generator that generates the q-axis current command based on the torque command, a magnetic-flux weakening controller that generates the d-axis current command based on a difference between a voltage command and a reference voltage, the voltage command being a vector with the d-axis voltage command output from the current vector controller as a d-axis component and the q-axis voltage command as a q-axis component, an amplitude of the voltage command not exceeding the reference voltage, a current limiter that limits a magnitude of the d-axis current command according to a magnitude of the q-axis current command, the d-axis current command being a d-axis component of a current command vector of the motor, the q-axis current command being a q-axis component of the current command vector of the motor, a magnitude of the current command vector of the motor not exceeding a current limit value, and a reference voltage correction unit that corrects the reference voltage based on a difference between a value of the d-axis current command before limitation and a value of the d-axis current command after the limitation.
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公开(公告)号：US20150211759A1
公开(公告)日：2015-07-30
申请号：US14423937
申请日：2013-04-26
Inventor： Ryuta Sasaki
CPC classification number: F24F11/006 , F04D27/00 , F24F11/0079 , F24F11/30 , F24F11/62 , F24F11/77 , G05B15/02 , H02P6/28 , Y02B30/746
Abstract: A motor control device according to the present invention is a device for controlling a motor driving an air blower. The motor control device includes: an air flow rate calculator configured to calculate an air flow rate supplied by the air blower; and a torque command generator configured to multiply a motor torque by a square of a ratio of a target air flow rate to the air flow rate or multiply a previously outputted torque command by the square of the ratio of the target air flow rate to the air flow rate, and generate a result of the multiplication as a torque command.
Abstract translation: 根据本发明的电动机控制装置是用于控制驱动鼓风机的电动机的装置。 电动机控制装置包括：空气流量计算器，被配置为计算由鼓风机供应的空气流量; 以及扭矩指令发生器，被配置为将电动机转矩乘以目标空气流量比与空气流量比的平方或乘以先前输出的转矩指令乘以目标空气流量与空气的比率的平方 流量，并产生乘法的结果作为转矩指令。
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