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1. 发明专利

JP2004072954A Motor control device and method therefor 有权
公开(公告)号：JP2004072954A
公开(公告)日：2004-03-04
申请号：JP2002231789
申请日：2002-08-08
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： MATSUNAGA YASURO , NAGAYAMA KAZUTOSHI , MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI
IPC分类号： H02P6/06 , H02P21/00 , H02P27/04 , H02P27/06 , H02P5/41
摘要： PROBLEM TO BE SOLVED: To provide a motor control device and a method for switching rectangular wave voltage drive and PWM wave voltage drive for improving the operating efficiency of a motor. SOLUTION: The rectangular wave voltage drive driven by applying a rectangular wave voltage to an AC motor and the PWM wave voltage drive driven by applying a PWM (pulse width modulation) wave voltage to the AC motor are made possible. By using torque and a speed, the operation region of the AC motor is divided into a region A wherein the PWM wave voltage drive is conducted for obtaining high-speed responsiveness, a region C wherein the rectangular wave voltage drive is conducted for obtaining a high output, and an intermediate region B wherein either of the PWM wave voltage drive or the rectangular wave voltage drive can be conducted. When switching the rectangular wave voltage drive and the PWM wave voltage drive corresponding to a torque command τr and a motor speed ωm, loss maps of motor control systems in the rectangular wave voltage drive and the PWM wave voltage drive are possessed, and, in driving the AC motor in the intermediate region B, either of the rectangular wave voltage drive and the PWM wave voltage drive whichever small in loss is selected. COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004032908A Motor controller 有权
公开(公告)号：JP2004032908A
公开(公告)日：2004-01-29
申请号：JP2002185825
申请日：2002-06-26
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： NAGAYAMA KAZUTOSHI , MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI
IPC分类号： H02P25/08 , H02P6/08 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To reduce high-frequency noise at low speed or stoppage of an AC motor. SOLUTION: This motor controller detects the magnetic pole position of an AC motor, based on the AC current flowing to the AC motor and also detects the rotational speed of the AC motor, based on the change of the magnetic pole position. Furthermore, this generates a voltage for detection of the magnetic pole position for one cycle of carrier, whose half cycle is a positive rectangular wave and whose next half cycle is a negative rectangular wave, and also changes the superposition interval of the voltage for detection of magnetic pole position, according to the rotational speed of the AC motor, and superposes the voltage for detection of magnetic pole position to a d-axis voltage command value. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004166415A Equipment for driving and controlling motor 审中-公开
公开(公告)号：JP2004166415A
公开(公告)日：2004-06-10
申请号：JP2002330537
申请日：2002-11-14
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： NAGAYAMA KAZUTOSHI , MATSUNAGA YASURO , ANDO SEIJI , MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI
IPC分类号： B60L3/00 , H02P6/08 , H02P21/00 , H02P27/04
CPC分类号： Y02T10/642
摘要： PROBLEM TO BE SOLVED: To control the drive of a motor so that the temperature of the motor and its drive gear does not exceed the allowable value.
SOLUTION: In the operation region of a motor where either of a rectangular wave AC voltage and a PWM wave AC voltage can drive, the loss when the motor is driven with the rectangular wave AC voltage is compared to the loss, when the motor is driven with the PWM wave AC voltage, for switching either to the rectangular wave control or to PWM control of smaller loss.
COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2005117757A Failure diagnosis device of current detecting circuit and motor control system 审中-公开
标题翻译：电流检测电路故障诊断装置和电机控制系统
公开(公告)号：JP2005117757A
公开(公告)日：2005-04-28
申请号：JP2003347282
申请日：2003-10-06
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： NAGAYAMA KAZUTOSHI , MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI
IPC分类号： H02P6/16 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnosis device of a current detecting circuit being provided in a system for controlling a motor without using a pole position sensor by detecting the motor current and diagnosing the failure of a filter circuit for extracting the high frequency component of motor current, and to provide a motor control system comprising that failure diagnosis device. SOLUTION: Difference of currents iu, iv and iw of a synchronous motor 1 sampled every half period of a carrier at a failure diagnosis section 16 is compared with difference of high frequency components iuf, ivf and iwf of the iu, iv and iw extracted at a filter section 15 and sampled every half period of a carrier, and a decision is made whether filtering at the filter section 15 is normal or not for three phases uvw. When a decision is made that filtering of two or more phases is abnormal, pole position θ of the motor 1 is calculated from the sampling values iu, iv and iw of a motor current not subjected to filtering. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电流检测电路的故障诊断装置，其设置在用于通过检测电动机电流而不使用极位置传感器来控制电动机的系统，并且诊断用于提取电动机电流的滤波器电路的故障提供电动机电流的高频分量，并提供包括故障诊断装置的电动机控制系统。解决方案：将在故障诊断部分16处的载波的每半个周期采样的同步电动机1的电流iu，iv和iw的差异与iu，iv的高频分量iuf，ivf和iwf的差异进行比较，在滤波器部分15提取并在载波的每半个周期进行采样，并且决定滤波器部分15的滤波是否正常三相uvw。当判断为两相以上的相位异常时，根据不进行滤波的电动机电流的采样值iu，iv，iw来计算电动机1的极点位置θ。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005065349A Synchronous motor controller 审中-公开
标题翻译：同步电机控制器
公开(公告)号：JP2005065349A
公开(公告)日：2005-03-10
申请号：JP2003207028
申请日：2003-08-11
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI , MATSUNAGA YASURO
IPC分类号： B60L9/18 , H02P6/16
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a synchronous motor controller capable of generating a required motor torque even upon occurrence of positional shift in the position detector of a synchronous motor.
SOLUTION: Rotational position of a synchronous motor 1 is detected by a position detector 6 and torque of the synchronous motor 1 is controlled in accordance with a torque command τr. Power being generated from the synchronous motor 1 is detected at a power detecting section 14. Positional shift of the position detector 6 is corrected using the difference between a power detected at the power detecting section 14 and a power reference value determined by the torque command τr and the r.p.m. of the synchronous motor 1.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种同步电动机控制器，即使在同步电动机的位置检测器中发生位置偏移，也能够产生所需的电动机转矩。解决方案：同步电动机1的旋转位置由位置检测器6检测，同步电动机1的转矩根据转矩指令τr进行控制。在功率检测部分14检测从同步电动机1产生的功率。使用在功率检测部分14检测到的功率与由转矩指令τr确定的功率参考值之间的差异来校正位置检测器6的位置偏移和转速的同步电机1.版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2004135425A Motor controller 有权
公开(公告)号：JP2004135425A
公开(公告)日：2004-04-30
申请号：JP2002297198
申请日：2002-10-10
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： KANEKO SATORU , MASAKI RYOZO , SAWADA TAKEFUMI , MATSUNAGA YASURO , ANDO SEIJI , NAGAYAMA KAZUTOSHI
IPC分类号： H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a motor controller having a position estimating means which can stably and accurately estimate a rotor position even when a local magnetic saturation occurs in a motor current direction by large current. SOLUTION: A method for disassembling a stator includes an AC motor 2 having a saliency, a PWM inverter 3 for applying a voltage to the motor 2, and a controller 1 for controlling the inverter 3 according to a PWM signal. The controller 1 includes a position estimating means 11 for detecting a motor inductance of a current vector direction (X-axis) of the motor 2 and a motor inductance of a direction (Y-axis) perpendicular to the current vector, and estimating a rotor position of the motor based on the detected motor inductances of the X-, Y-axis directions. COPYRIGHT: (C)2004,JPO

7. 发明专利

JP2005117756A Failure diagnosis device of dc voltage detecting circuit and motor control system 有权
标题翻译：直流电压检测电路故障诊断装置及电机控制系统
公开(公告)号：JP2005117756A
公开(公告)日：2005-04-28
申请号：JP2003347281
申请日：2003-10-06
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： NAGAYAMA KAZUTOSHI , MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI
IPC分类号： H02P6/12 , H02P27/06 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a failure diagnosis device of a DC voltage detecting circuit for diagnosing the failure of a circuit for detecting a DC voltage, and to provide a motor control system having the failure diagnosis device. SOLUTION: Reference value of a DC voltage VB is determined and the DC voltage VB is compared with the reference value. In PWM control, the difference of current difference ΔΔi in one period of carrier is detected, and then the reference value of the difference of current difference ΔΔi is calculated from a superposed voltage Vp and a d-axis current id and compared with the difference of current difference ΔΔi. At the time of rectangular wave control, a variation ΔVB before and after switching is determined from the DC voltage VB and the information of a switching phase, and then the reference value of variation ΔVB is calculated from the current isw of the switching phase and compared with the variation ΔVB. When the difference from the reference value exceeds a specified value, a decision is made that a voltage detecting section 7 has failed and a switch 12 is turned to the PWM control section 9 side and the DC voltage VB being outputted from the voltage detecting section 7 is fixed to a minimum guarantee voltage. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供用于诊断用于检测直流电压的电路的故障的直流电压检测电路的故障诊断装置，并且提供具有故障诊断装置的电动机控制系统。
解决方案：确定直流电压VB的参考值，并将直流电压VB与参考值进行比较。在PWM控制中，检测一个载波周期的电流差ΔΔi的差值，然后根据叠加电压Vp和d轴电流id计算电流差ΔΔi差的参考值，并与电流差ΔΔi。在矩形波控制时，根据直流电压VB和开关相位的信息确定开关前后的变化ΔVB，然后根据开关相的电流脉冲计算变化量ΔVB的基准值，并进行比较具有变化ΔVB。当与基准值的差超过规定值时，判断为电压检测部7发生故障，开关12转向PWM控制部9侧，直流电压VB从电压检测部7输出固定在最低保证电压。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2004254423A Motor controller 有权
公开(公告)号：JP2004254423A
公开(公告)日：2004-09-09
申请号：JP2003042152
申请日：2003-02-20
申请人： Hitachi Ltd , Nissan Motor Co Ltd , 日産自動車株式会社 , 株式会社日立製作所
发明人： MASAKI RYOZO , KANEKO SATORU , SAWADA TAKEFUMI , NAGAYAMA KAZUTOSHI , MATSUNAGA YASURO , ANDO SEIJI
IPC分类号： H02P6/18 , H02P21/00 , H02P27/04
摘要： PROBLEM TO BE SOLVED: To provide a motor controller which can control in an unloaded condition and heavily loaded condition without being influenced by partial magnetic saturation without a magnetic position sensor. SOLUTION: A controller 4 which controls an applied voltage to an AC motor 1 is equipped with a position detector 14 which superimposes a voltage for position detection on the applied voltage and detects a phase θco from the phase θdi of a current difference vector with respect to the voltage for position detection, and a position compensator 15 which computes a compensating position Δθ created by the partial magnetic saturation of a rotor 17 from the torque command τr of the AC motor and a motor velocity ωm obtained by a velocity detector 16. The controller 4 controls the motor using a magnetic pole position θc which is compensated using the compensating position Δθ added to a phase θco. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2003023800A Motor controller and method of motor control 审中-公开
标题翻译：电机控制器及电机控制方法
公开(公告)号：JP2003023800A
公开(公告)日：2003-01-24
申请号：JP2001206404
申请日：2001-07-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KANEKO SATORU , MASAKI RYOZO , MOTOBE MITSUSACHI , KATAYAMA HIROSHI , SAWADA TAKEFUMI
IPC分类号： B60L15/20 , H02P6/16 , H02P21/00 , H02P27/04
CPC分类号： B60L11/1803 , B60L15/025 , Y02T10/643 , Y02T10/7005 , Y02T10/7258
摘要： PROBLEM TO BE SOLVED: To provide a high speed and high response position-sensorless controller utilizing an arithmetic unit, such as a microcomputer. SOLUTION: This motor controller comprises an AC motor 1, a PWM inverter for applying voltage to the AC motor 1 and a controller 4 for controlling the PWM inverter with the PWM signal. Moreover, the controller 4 comprises a first arithmetic unit 5, including a current controlling means for controlling the current of the AC motor 1 and a second arithmetic unit 6 which includes a magnetic pole detecting means for detecting rotor magnetic pole position of the AC motor, which becomes the reference position of the current control means.
摘要翻译：要解决的问题：提供使用诸如微计算机的运算单元的高速和高响应位置无传感器控制器。解决方案：该电动机控制器包括AC电动机1，用于向AC电动机1施加电压的PWM逆变器和用于利用PWM信号控制PWM逆变器的控制器4。此外，控制器4包括第一运算单元5，其包括用于控制交流电动机1的电流的电流控制装置和包括用于检测交流电动机的转子磁极位置的磁极检测装置的第二运算单元6，其变为当前控制装置的参考位置。

10. 发明专利

JP2008042973A Electric vehicle with motor controller 审中-公开
标题翻译：电动马达与电机控制器
公开(公告)号：JP2008042973A
公开(公告)日：2008-02-21
申请号：JP2006210453
申请日：2006-08-02
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAWADA TAKEFUMI , RAM VIJAYAGOPAL
IPC分类号： B60L3/00 , B60K6/485 , B60W10/06 , B60W10/08 , B60W10/26 , B60W20/00 , H02P27/06
CPC分类号： B60L11/1861 , B60L3/0046 , B60L3/06 , B60L3/12 , B60L7/14 , B60L11/1859 , B60L15/20 , B60L15/2009 , B60L15/2054 , B60L2240/421 , B60L2240/423 , B60L2240/545 , B60L2240/547 , B60L2240/549 , Y02T10/645 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7275
摘要： PROBLEM TO BE SOLVED: To provide an electric vehicle which performs power limitation without exceeding the charge/discharge power limit value of a battery, and performs control with good response even when a limitation command value is changed. SOLUTION: The electric vehicle comprises a battery, a motor, a voltage detector for detecting the voltage value of the battery, a current detector for detecting the current value of the battery, a power converter for converting the DC voltage of the battery into an AC voltage being applied to the motor, and a motor controller performing drive control of the motor. Based on a power limitation command, the motor controller determines the I/O power of the battery by multiplying the battery voltage and the battery current and controls the upper and lower limits of the battery using a PI controller and a map or a table. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种在不超过电池的充放电功率极限值的情况下进行功率限制的电动车辆，并且即使当限制命令值改变时也执行良好响应的控制。解决方案：电动车辆包括电池，电动机，用于检测电池的电压值的电压检测器，用于检测电池的当前值的电流检测器，用于转换电池的直流电压的电力转换器施加到电动机的交流电压，以及执行电动机的驱动控制的电动机控制器。基于功率限制命令，电机控制器通过乘以电池电压和电池电流来确定电池的I / O功率，并使用PI控制器和地图或表格控制电池的上限和下限。版权所有（C）2008，JPO＆INPIT

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