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公开(公告)号：US20070013333A1
公开(公告)日：2007-01-18
申请号：US11486151
申请日：2006-07-14
IPC分类号： H02P7/00
CPC分类号： H02P6/18
摘要： The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.
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公开(公告)号：US07271557B2
公开(公告)日：2007-09-18
申请号：US11486151
申请日：2006-07-14
IPC分类号： H02P7/00
CPC分类号： H02P6/18
摘要： The AC motor driving apparatus comprises an inverter for supplying power to an AC motor, current sensors for detecting current that flows in the motor or inverter, a rotation sensor for detecting the rotation of the rotor in the motor, and a control unit for controlling the driving of the inverter. A current detection value detected by the current sensor and a rotor rotational position are used to estimate three-phase motor current values. The estimated motor current values are used to control the inverter. Thereby, an inexpensive, space-saving AC motor driving apparatus as well as an AC motor controller, electric actuator, or vehicle that can perform highly precise torque control from zero speed to high-speed rotation without depending on the PWM pulse pattern are provided.
摘要翻译： 交流电动机驱动装置包括用于向交流电动机供电的逆变器，用于检测在电动机或逆变器中流动的电流的电流传感器，用于检测电动机中的转子的旋转的旋转传感器，以及用于控制电动机的控制单元 驱动变频器。 使用由电流传感器检测的电流检测值和转子旋转位置来估计三相电动机电流值。 估计电机电流值用于控制变频器。 因此，提供了一种廉价的，节省空间的AC电动机驱动装置以及可以执行从零速到高速旋转的高精度转矩控制的交流电动机控制器，电动致动器或车辆，而不依赖于PWM脉冲模式。
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公开(公告)号：US20060125439A1
公开(公告)日：2006-06-15
申请号：US11294500
申请日：2005-12-06
申请人： Toshiyuki Ajima , Hideki Miyazaki , Yukio Kawabata , Kiyoshi Sakamoto , Takao Yanai , Osamu Koizumi
发明人： Toshiyuki Ajima , Hideki Miyazaki , Yukio Kawabata , Kiyoshi Sakamoto , Takao Yanai , Osamu Koizumi
IPC分类号： H02P1/46
CPC分类号： B60K6/26 , B60K6/48 , B60L11/14 , B60L15/025 , B60L15/20 , B60L2220/14 , B60L2220/16 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429 , H02P1/46 , H02P21/22 , Y02T10/6221 , Y02T10/643 , Y02T10/70 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
摘要： A rotary sensor that outputs two analog signals, such as one sine wave and one cosine wave and has multiple periods within one period of the electrical angle of a motor is employed. The motor is energized at each position for a specified length of time upon its startup by using multiple electrical angles corresponding to the multiple candidate absolute angles obtained from the rotary sensor signal as the initial position of the motor, and the electrical angle at which the motor acceleration becomes maximum is determined as the absolute angle. While the motor drive is in operation, on the other hand, the phase difference Δθ between the phase of the motor at the counter electromotive voltage and the control phase is directly computed from the parameters of the motor, sensed current, voltage command and angle speed so as to correct the shifted position. A high-efficiency motor drive unit with improved maintainability of rotary sensor and improved accuracy of sensing the magnet pole position of a permanent magnet synchronous motor that accelerates and decelerates very quickly in a wide range of speed is realized.
摘要翻译： 采用旋转传感器，其输出两个模拟信号，例如一个正弦波和一个余弦波，并且在电动机的电角度的一个周期内具有多个周期。 电动机通过使用与从旋转传感器信号获得的多个候选绝对角度相对应的多个电角度作为电动机的初始位置和电动机的电角度，在每个位置通电一段指定时间长度的电动机 加速度变为最大值被确定为绝对角度。 另一方面，在电动机驱动器运行中，电动机相反相电压与控制相之间的相位差Deltatheta直接根据电动机的参数，感应电流，电压指令和角速度来计算 以便纠正移位的位置。 实现了高效率的电机驱动单元，其具有改进的旋转传感器的可维护性并且提高了感测永磁同步电动机的磁极位置的精度，其在宽的速度范围内非常快速地加速和减速。
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公开(公告)号：US07294988B2
公开(公告)日：2007-11-13
申请号：US11294500
申请日：2005-12-06
申请人： Toshiyuki Ajima , Hideki Miyazaki , Yukio Kawabata , Kiyoshi Sakamoto , Takao Yanai , Osamu Koizumi
发明人： Toshiyuki Ajima , Hideki Miyazaki , Yukio Kawabata , Kiyoshi Sakamoto , Takao Yanai , Osamu Koizumi
IPC分类号： H02P1/46
CPC分类号： B60K6/26 , B60K6/48 , B60L11/14 , B60L15/025 , B60L15/20 , B60L2220/14 , B60L2220/16 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429 , H02P1/46 , H02P21/22 , Y02T10/6221 , Y02T10/643 , Y02T10/70 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
摘要： A rotary sensor that outputs two analog signals, such as one sine wave and one cosine wave and has multiple periods within one period of the electrical angle of a motor is employed. The motor is energized at each position for a specified length of time upon its startup by using multiple electrical angles corresponding to the multiple candidate absolute angles obtained from the rotary sensor signal as the initial position of the motor, and the electrical angle at which the motor acceleration becomes maximum is determined as the absolute angle. While the motor drive is in operation, on the other hand, the phase difference Δθ between the phase of the motor at the counter electromotive voltage and the control phase is directly computed from the parameters of the motor, sensed current, voltage command and angle speed so as to correct the shifted position.
摘要翻译： 采用旋转传感器，其输出两个模拟信号，例如一个正弦波和一个余弦波，并且在电动机的电角度的一个周期内具有多个周期。 电动机通过使用与从旋转传感器信号获得的多个候选绝对角度相对应的多个电角度作为电动机的初始位置，并且电动机的电角度在电动机的每个位置通电一段指定的时间长度 加速度变为最大值被确定为绝对角度。 另一方面，在电动机驱动器运行中，电动机相反相电压与控制相之间的相位差Deltatheta直接根据电动机的参数，感应电流，电压指令和角速度来计算 以便纠正移位的位置。
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公开(公告)号：US08355226B2
公开(公告)日：2013-01-15
申请号：US12868260
申请日：2010-08-25
申请人： Takeshi Yoshida , Takao Yanai
发明人： Takeshi Yoshida , Takao Yanai
CPC分类号： G01R31/025 , B60L3/0061 , B60L3/12 , B60L2240/421 , G01R31/007 , Y02T10/642
摘要： A ground fault sensing device for a drive system that converts direct current electrical power from a direct current power supply into alternating current electrical power and drives an electric motor with that alternating current electrical power, comprises: an extraction circuit that is connected to a power supply line of the direct current power supply via a coupling capacitor, that detects an amplitude wave that is generated when an alternating current side including the electric motor is suffering a ground fault, and that extracts the envelope of the amplitude wave; a measurement circuit that measures the voltage level of the envelope; and a determination circuit that makes a decision as to whether or not a ground fault has occurred on the alternating current side by comparing together the voltage level measured by the measurement circuit and a ground fault decision value.
摘要翻译： 一种用于驱动系统的接地故障检测装置，其将来自直流电源的直流电力转换成交流电力，并用该交流电力驱动电动机，包括：提取电路，其连接到电源 检测当包括电动机的交流电侧发生接地故障时产生的振幅波，并且提取振幅波的包络线的直流电源线; 一个测量电路，用于测量信封的电压电平; 以及判定电路，通过将由测量电路测量的电压电平与接地故障判定值进行比较，来判断交流侧是否发生接地故障。
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6.发明授权
公开(公告)号：US4742484A
公开(公告)日：1988-05-03
申请号：US687766
申请日：1984-12-31
申请人： Takao Yanai , Yoshiaki Takahashi , Toshio Ozawa
发明人： Takao Yanai , Yoshiaki Takahashi , Toshio Ozawa
IPC分类号： H04L12/403 , G06F3/00
CPC分类号： H04L12/40006 , H04L12/403
摘要： A master station and a plurality of slave stations are connected in multi-drop connection. A carrier wave on an upstream transmission line between the master station and the slave stations is demodulated and re-modulated in each slave station and always maintained to be on-state. Both the modulating and demodulating devices are performed by a MODEM following the protocol CCITT V.28, respectively. Each MODEM used is connected to the respective slave station by a signal line following the protocol EIAR3 232C.
摘要翻译： 主站和多个从站以多点连接方式连接。 在主站和从站之间的上游传输线上的载波在每个从站中被解调和重新调制，并且始终保持为导通状态。 调制和解调装置都分别按照协议CCITT V.28的MODEM进行。 所使用的每个调制解调器通过遵循协议EIAR3 232C的信号线连接到相应的从站。
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公开(公告)号：US4642760A
公开(公告)日：1987-02-10
申请号：US526795
申请日：1983-08-26
申请人： Takao Yanai , Yoshiaki Takahashi
发明人： Takao Yanai , Yoshiaki Takahashi
CPC分类号： G06F13/24
摘要： In a status-change gathering apparatus wherein status-change data is supplied to a processor from a plurality of inputting devices having a function of detecting status changes in a process or the like, each of the inputting devices is capable of producing an enable signal at a period not greater than the maximum allowed time between a detected status change in a controlled process and the controlling action to be performed by the processor, and of supplying the processor directly with an interrupt signal for requesting data gathering only when the enable signal is "on" and the status change has been detected. Upon receiving an interrupt signal from at least one inputting device, the processor sends a sense signal to all inputting devices, and any inputting device which has generated an interrupt signal places a response signal on a unique line to the processor to identify that inputting device. In this way, sequential scanning of inputting devices to detect changes in status is avoided.
摘要翻译： 在状态变化采集装置中，其中状态变化数据从具有检测处理等状态变化的功能的多个输入装置提供给处理器，每个输入装置能够产生使能信号 不大于受控过程中检测到的状态改变与由处理器执行的控制动作之间的最大允许时间的周期，以及仅在使能信号为“ 开启“状态变化。 在从至少一个输入装置接收到中断信号时，处理器向所有输入装置发送感测信号，并且产生中断信号的任何输入装置将唯一行上的响应信号放在处理器上以识别该输入装置。 以这种方式，避免了输入装置的顺序扫描以检测状态的变化。
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