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31. 发明专利

JPS6132120A Positioning control system 失效
标题翻译：定位控制系统
公开(公告)号：JPS6132120A
公开(公告)日：1986-02-14
申请号：JP15306184
申请日：1984-07-25
申请人： Hitachi Ltd
发明人： MASAKI RYOZO , OMAE TSUTOMU , FUJII KEN , SAITOU TSUTOMU
IPC分类号： G05D3/12 , G05B11/32 , G05D3/14
CPC分类号： G05D3/1445
摘要： PURPOSE:To attain positioning without vibration by deciding the feedback gain so that the transfer function of the control system is expressed with a product of 1st-order delay elements while taking notice that the characteristic such as overshoot and response time are clarified from the transfer function of the control system in the positioning characteristic of the control system. CONSTITUTION:A motor 1 is driven, a drive shaft is turned to position an XY state 3, and the stage position theta and state speed omegas of the XY stage 3 are detected by a stage detector 4. Further, a motor position thetaM and motor speed omegaM are detected by a motor detector 5 and the four detected state variables X are fed back to a position control circuit 6. The position control circuit 6 uses a position command thetas0 given from a position command circuit 7 and the fedback state X to apply positioning control operation so as to decide a motor current ia inputted to the motor 1. Further, the transfer function of the XY stage 3 is selected as the 2nd order delay system including the vibrating system.
摘要翻译：目的：通过确定反馈增益来获得无振动的位置，使得控制系统的传递函数用1阶延迟元件的乘积表示，同时注意到从传递函数中明确过冲和响应时间等特性的控制系统在控制系统的定位特性。构成：电动机1被驱动，驱动轴转动以定位XY状态3，并且台架检测器4检测XY台3的台位置θ和状态速度ω。此外，电动机位置θM和电动机速度ωMM由电动机检测器5检测，四个检测到的状态变量X反馈给位置控制电路6.位置控制电路6使用从位置指令电路7给出的位置命令tt和反馈状态X来应用定位控制操作，以便确定输入到电动机1的电动机电流。此外，XY级3的传递函数被选择为包括振动系统的二阶延迟系统。

32. 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

33. 发明专利

JP2005010015A Angle sensor, angle/torque sensor, and electric power steering unit using the same 审中-公开
标题翻译：角度传感器，角度/扭矩传感器以及使用该方法的电动转向单元
公开(公告)号：JP2005010015A
公开(公告)日：2005-01-13
申请号：JP2003174434
申请日：2003-06-19
申请人： Hitachi Cable Ltd , Hitachi Ltd , 日立電線株式会社 , 株式会社日立製作所
发明人： MASAKI RYOZO , MENJU RYOICHI
IPC分类号： G01L3/10 , B62D5/04 , G01D5/245
摘要： PROBLEM TO BE SOLVED: To provide a sensor for power steering for detecting precisely a steering angle with a simple constitution having excellent consistency with an inductance type torque sensor.
SOLUTION: An angle detecting part 54 having a Hall element, that is one of a magnetic sensitive element, is inserted between an input shaft detecting ring 26 and a compensation ring 34 rotated integrally with an input shaft 12 for the steering. A magnetic flux generated in a compensation coil 36 passes through the input shaft detecting ring 26, the compensation ring 34 and a magnetic path 38. Unevenness of the magnetic flux is generated locally in a space between the compensation ring 34 and the input shaft detecting ring 26, caused by a tip part 7a and a bottom part 34b of the compensation ring 34. The angle detecting part 54 detects a condition change of the magnetic flux by rotation of the compensation ring 34. The angle sensor to detect a rotation angle of the input shaft 12 can be obtained by this manner.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于用于以与电感型扭矩传感器具有优异一致性的简单结构精确检测转向角的动力转向传感器。解决方案：具有作为感应元件之一的霍尔元件的角度检测部分54插入在输入轴检测环26和与用于转向的输入轴12一体旋转的补偿环34之间。在补偿线圈36中产生的磁通通过输入轴检测环26，补偿环34和磁路38.在补偿环34和输入轴检测环之间的空间中局部产生磁通的不均匀由补偿环34的尖端部分7a和底部34b引起的角度检测部分54通过补偿环34的旋转检测磁通量的状态变化。角度传感器检测旋转角度可以通过这种方式获得输入轴12。版权所有（C）2005，JPO＆NCIPI

34. 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

35. 发明专利

JP2002291298A MOTOR CONTROLLER AND CONTROLLER FOR ELECTRIC ROLLING STOCK 审中-公开
公开(公告)号：JP2002291298A
公开(公告)日：2002-10-04
申请号：JP2002083939
申请日：2002-03-25
申请人： HITACHI LTD
发明人： KANEKO SATORU , MASAKI RYOZO , OBARA SANSHIRO , TAKAMOTO YUSUKE
IPC分类号： B60L15/20 , H02P21/00 , H02P21/22 , H02P23/07 , H02P27/04 , H02P27/06 , H02P27/08 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To provide a motor controller which enables electric current control satisfying stable and necessary response by a digital arithmetic unit even if a maximum output frequency of a power converter reaches a high frequency of 500 Hz or higher. SOLUTION: In a current feedback control means 8, deviations ΔId and ΔIq of d-axis and q-axis current command values Id * and Iq * from current values Id and Iq are determined by subtracters 10 and 11, and the deviations ΔId and ΔIq and proportional gains Kpd and Kpq are multiplied together by multipliers 12 and 13 so as to compute d-axis and q-axis proportional voltage manipulated variables Vd2 and Vq2 . In terms of the deviations ΔId and ΔIq , d-axis and q-axis integral input quantities Id1 and Iq1 are computed by a computing means 14 according to the following equations: Id1 =ΔId .COS (θd )-ΔIq .SIN(θq ) and Iq1 =ΔIq .COS(θq )+ΔId .SIN(θd ). Integrators 21 and 22 bring about computation of d-axis and q-axis integral voltage manipulated variables Vd1 and Vq1 . The variables Vd1 and Vd2 are added together by an adder 23 in order to compute a d-axis voltage manipulated variable Vd *. The variables Vq1 and Vq2 are added together by an adder 24 so as to compute a q-axis voltage manipulated variable Vq *.

36. 发明专利

JP2002262592A MOTOR CONTROL DEVICE 失效
公开(公告)号：JP2002262592A
公开(公告)日：2002-09-13
申请号：JP2001053419
申请日：2001-02-28
申请人： HITACHI LTD
发明人： MASAKI RYOZO , SAKURAI YOSHIMI , KANEKO SATORU
IPC分类号： H02P6/18 , H02P6/06 , H02P6/08 , H02P6/182 , H02P21/00 , H02P21/14 , H02P21/18 , H02P21/24 , H02P23/14 , H02P25/026 , H02P27/04 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To provide a motor control device which has control characteristics with satisfactory responsiveness without using a position detection sensor. SOLUTION: A plurality of detecting voltage vectors Vab and Vcd are applied synchronously with a PWM signal generating a carrier wave of a control device 4, and motor currents iu and iv are detected by a current detection pulse Pd which is synchronous with the carrier wave. According to relations between the detecting voltage vectors Vab and Vcd and differential current vectors of the motor currents corresponding to the respective voltage vectors, a pole position θ is calculated by utilizing the saliency of a synchronous motor 1. With such a constitution, the pole position θ can be detected in a short time and with high accuracy with a small detecting voltage, so that a pole position sensorless motor control device with satisfactory controllability can be obtained at a low cost.

37. 发明专利

JP2002262591A MOTOR CONTROL DEVICE AND MOTOR-DRIVEN VEHICLE USING THE DEVICE 失效
公开(公告)号：JP2002262591A
公开(公告)日：2002-09-13
申请号：JP2001052477
申请日：2001-02-27
申请人： HITACHI LTD
发明人： SAWADA TAKEFUMI , KANEKO SATORU , MASAKI RYOZO , MOTOBE MITSUSACHI , KATAYAMA HIROSHI
IPC分类号： B60L15/20 , H02P3/18 , H02P6/06 , H02P6/08 , H02P6/18 , H02P6/182 , H02P6/28 , H02P21/00 , H02P21/05 , H02P21/14 , H02P21/18 , H02P21/22 , H02P21/24 , H02P21/28 , H02P21/34 , H02P23/04 , H02P23/14 , H02P25/026 , H02P27/04 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To provide a motor control device which can be applied to a carrier wave synchronous type position estimation method and has a protective function such as detecting pole position inversion of a motor using a simple method, etc., and to provide a motor-driven vehicle using the device. SOLUTION: A controller 4 controls a voltage applied to an AC motor 1 with a PWM signal. A pole position detection means 30 for the controller 4 estimates the pole position of the AC motor 1 by detecting the current of the AC motor 1. An abnormality detection means 40 detects an estimated abnormal of the pole position of the AC motor 1.

38. 发明专利

JP2002010677A MOTOR-CONTROL UNIT 失效
公开(公告)号：JP2002010677A
公开(公告)日：2002-01-11
申请号：JP2000186791
申请日：2000-06-21
申请人： HITACHI LTD
发明人： SAKURAI YOSHIMI , KANEKO SATORU , MASAKI RYOZO , OBARA SANSHIRO , MOTOBE MITSUSACHI
IPC分类号： H02P27/04 , H02P6/06 , H02P6/08 , H02P6/16 , H02P6/17 , H02P6/28 , H02P21/00 , H02P21/18 , H02P21/22 , H02P21/24 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To provide a motor-control unit that conducts a motor-temperature monitor control without use of a sensor for monitoring the temperature, solving a problem that a downsizing of the motor is hindered due to the necessity of mounting the sensor that conducts a monitor control for a magnet temperature or a winding temperature in a control system that controls a synchronous motor. SOLUTION: The control unit, which controls a power converter that applies a voltage to an AC motor and also controls the applied voltage by means of a PWM signal that synchronizes with a carrier wave, is characterized by consisting of a current-detection means that detects a current of the AC motor synchronizing with the carrier wave for generating the PWM signal of the control unit, a back-electromotive force-operation means 51 that calculates a back electromotive force by calculating a current-differential vector of every half cycle and a temperature-estimation means that estimates the magnet temperature and the winding temperature based on the relation of the back electromotive force and the magnet temperature.

39. 发明专利

JP2002010408A AUTOMOBILE AND ITS ELECTRIC POWER UNIT 失效
公开(公告)号：JP2002010408A
公开(公告)日：2002-01-11
申请号：JP2000187503
申请日：2000-06-19
申请人： HITACHI LTD
发明人： AMANO MASAHIKO , MASAKI RYOZO , MOROOKA YASUO
IPC分类号： B60R16/033 , B60K6/20 , B60K6/28 , B60K6/48 , B60K6/485 , B60K25/00 , B60L11/18 , B60L50/16 , B60R16/04 , B60W10/26 , B60W20/00 , H02J7/14 , H02P9/04 , B60L11/14 , B60R16/02
摘要： PROBLEM TO BE SOLVED: To dispense with plural batteries and DC-DC convertors and enable operation, even in case of failure of a controller, in an automobile electric power unit capable of supplying plural voltages. SOLUTION: The battery 6 is provided with a high-voltage terminal 11 and low-voltage terminal 12; a high-voltage FET 4 which controls the power supply in one direction from the high-voltage terminal 11 to the inverter 3 is connected between both of them, and a low-voltage FET 5, which controls the power supply in one direction from the invertor 3 to the low voltage terminal 12, is connected in between both of them.

40. 发明专利

JP2000346148A POWER TRANSMISSION AND VEHICLE 失效
公开(公告)号：JP2000346148A
公开(公告)日：2000-12-12
申请号：JP15537599
申请日：1999-06-02
申请人： HITACHI LTD
发明人： MIYAZAKI TAIZO , MINOWA TOSHIMICHI , HANIYU MICHIYUKI , MASAKI RYOZO , MOROOKA YASUO
IPC分类号： F16H3/42 , F16H37/04 , F16H55/08
摘要： PROBLEM TO BE SOLVED: To reduce the power transmission loss by providing a second gear thinner than a first gear, and continuously changing the radius of one pitch circle of the first gear and the second gear when the second gear is slid while changing the meshing position to the first gear. SOLUTION: An input shaft-side variable pitch circle gear 110 is formed into a shape in which the radius of the pitch circle of the plane orthogonal to an input shaft 112 is continuously changed, and an output shaft-side variable pitch circle gear 120 is formed of a variable pitch circle gear having the same form as the input shaft-side variable pitch circle gear 110, and it is provided so that the magnitude of the pitch circle radius is reversed from the input shaft-side variable pitch circle gear 110. A cycloidal sliding gear 130 to be meshed with the gears 110, 120 is provided, and this gear 130 is moved along the arrowed direction 134, whereby the meshing positions with the gears 110, 120 are changed, and the rotating speed of the input shaft 112 and the rotating speed of the output shaft 122 are continuously changed to continuously change the speed ratio of a continuously variable transmission 100.

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