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81. 发明专利

JPS6117202B2 JPS6117202B2 - 失效
公开(公告)号：JPS6117202B2
公开(公告)日：1986-05-06
申请号：JP2448579
申请日：1979-03-05
申请人： Hitachi Ltd
发明人： TSUBOI TAKASHI , OKAMATSU SHIGETOSHI , TAKATSU EIJI , IBAMOTO MASAHIKO , NARITA HIROSHI
IPC分类号： B60L9/16 , B60L3/10 , B60L9/22 , H02P23/06 , H02P27/06
CPC分类号： B60L3/102 , B60L9/22 , B60L2200/26 , B60L2210/20 , B60L2220/12 , H02P23/07 , Y02T10/725

82. 发明专利

JPS59201608A Controller of induction motor type electric railcar 失效
标题翻译：电感式电动机控制器
公开(公告)号：JPS59201608A
公开(公告)日：1984-11-15
申请号：JP7392083
申请日：1983-04-28
申请人： Hitachi Ltd
发明人： TERUNUMA MUTSUHIRO , TANAMACHI TOKUNOSUKE , OKAMATSU SHIGETOSHI , TSUBOI TAKASHI
IPC分类号： B60L9/16 , B60L3/10 , B60L9/18
CPC分类号： B60L3/10 , B60L2200/26 , B60L2220/12 , Y02T10/7258
摘要： PURPOSE:To obtain a controller of an induction motor for a vehicle having excellent adhesive performance by stepwisely increasing a slip frequency after slipping is finished. CONSTITUTION:A frequency calculator 12 outputs any of pulse generator outputs f1, f2 are a reference frequency fR. On the other hand, a slip detector 11 inputs the outputs f1, f2, detects slipping by an acceleration or the time change of acceleration, and outputs a slipping detection signal SLP. A pattern reduction controller 13 outputs a pattern reduction amount DELTAf for reducing a slip frequency pattern fSP when a slipping detection signal SLP is applied. When the slipping is finished so that the signal SLP is not detected, the controller 13 first outputs a pattern reduction amount DELTAf so as to become 1/2 of the slipping frequency fS before detecting the slipping. Then, it is returned to the value before detecting the slipping.
摘要翻译：目的：通过逐步增加打滑后的打滑频率来获得具有优异粘合性能的车辆感应电动机的控制器。构成：频率计算器12输出脉冲发生器输出f1，f2中的任一个为参考频率fR。另一方面，滑动检测器11输入输出f1，f2，通过加速度或加速度的时间变化来检测滑动，并输出滑动检测信号SLP。当应用滑动检测信号SLP时，图形缩小控制器13输出用于减小转差频率图案fSP的图案减少量DELTAf。当滑动完成，使得未检测到信号SLP时，控制器13首先在检测到滑动之前输出模式减少量DELTAf以使其成为滑差频率fS的1/2。然后，在检测到滑动之前返回到该值。

83. 发明专利

JPS58172903A CONTROLLER FOR DC MOTOR FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPS58172903A
公开(公告)日：1983-10-11
申请号：JP5111282
申请日：1982-03-31
申请人： HITACHI LTD
发明人： JINBO YOSHIJI , TSUBOI TAKASHI , OZAWA TSUTOMU
IPC分类号： B60L15/28 , B60L3/00 , H02P7/298 , H03K17/73
摘要： PURPOSE:To prevent the deterioration of riding feeling of an electric motor vehicle due to regenerative current which is not expected by imparting a reverse blocking capacity in an armature current path which contains an armature and a chopper connected in series with each other. CONSTITUTION:An armature chopper 13 having a capacity for blocking reverse current is connected in series with an armature 4, and a field chopper 8 is connected in series with a shunt field 7. In this manner, even if a trolley line voltage is abruptly decreased so that the voltage of the armature 4 exceeds the trolley line voltage, no regenerative current is flowed from the armature 4 to a pantograph 12, thereby preventing the deterioration of the riding feeling of the vehicle.

84. 发明专利

JPS5893404A UNBALANCE COMPENSATION CONTROL SYSTEM FOR MOTOR CURRENT OF ELECTRIC ROLLING STOCK 失效
公开(公告)号：JPS5893404A
公开(公告)日：1983-06-03
申请号：JP18920081
申请日：1981-11-27
申请人： HITACHI LTD
发明人： TOYODA EIICHI , NOZAKI YOSHIO , ARAI SHINICHI , TSUBOI TAKASHI
IPC分类号： B60L9/12 , H02P5/68
摘要： PURPOSE:To compensate for the unbalance of the armature currents of respective motors by controlling a common thyristor bridge with common control amount obtained by subtracting the control amount for compensating the current unbalance of each armature by regulating amount in a regulating thyristor bridge. CONSTITUTION:Deviations between a current pattern for flowing a current in each armature circuit to be outputted from current pattern generators 61, 62 and armature circuit currents outputted from current detectors 51, 52 are respectively detected by deviation detectors 11, 12. Deviation detectors 13, 14 control regulating thyristor bridges 21, 22 with the deviation between the outputs of the detectors 11, 12 and the output of a deviation detector 15. The detector 15 controls common thyristor bridges 23-26 with the deviation between the maximum of the outputs of the detectors 13, 14 and the output of a reference generator 10.

85. 发明专利

JPS5889089A CONTROLLING METHOD FOR VARIABLE VOLTAGE AND VARIABLE FREQUENCY INVERTER OF INDUCTION MOTOR 失效
公开(公告)号：JPS5889089A
公开(公告)日：1983-05-27
申请号：JP18528781
申请日：1981-11-20
申请人： HITACHI LTD
发明人： OKAMATSU SHIGETOSHI , TSUBOI TAKASHI , JINBO YOSHIJI , IBAMOTO MASAHIKO , TANAMACHI TOKUNOSUKE
IPC分类号： H02P27/08 , H02P21/22 , H02P23/07 , H02P23/16 , H02P23/22 , H02P27/06
摘要： PURPOSE:To reduce the current ripple of an induction motor by selecting the frequency of an inverter which switches a PWM modulation pulse number to become higher at the regenerating time than that at the power driving time. CONSTITUTION:The frequency of a power source which is supplied to an induction motor 4 is controlled by a microcomputer 10, and the voltage is controlled by the output of a subtractor 15. The power driving time and the regenerating time are distinguished during the pulse number switching program of the microcomputer 10, thereby selecting the frequency of the inverter at the time of switching the pulse at the regenerating time higher than the power driving time. Accordingly, a PWM modulation is performed by employing a triangular wave of the pulse motor mostly adapted for the regenerating time, the inverter 3 is controlled, thereby preventing the harmonic component contained in the PWM modulation pulse train from increasing.

86. 发明专利

JPS5826502A CONTROLLING DEVICE FOR INDUCTION MOTOR TYPE ELECTRIC VEHICLE 失效
公开(公告)号：JPS5826502A
公开(公告)日：1983-02-17
申请号：JP12447881
申请日：1981-08-07
申请人： HITACHI LTD
发明人： TSUBOI TAKASHI , OKAMATSU SHIGETOSHI , JINBO YOSHIJI , IBAMOTO MASAHIKO
IPC分类号： B60L9/16 , B60L9/18 , B60L15/20
摘要： PURPOSE:To reliably perform the starting of an induction motor type electric vehicle on an increasing grade by a method wherein the output polarity of a pulse number-voltage converter, which detects the revolution number of an induction motor, is switched when the backward movement of the electric vehicle was detected. CONSTITUTION:The pulse number-voltage converter 52 generates the voltage in proportion to the pulse frequency outputted from a pulse generator 51. An electric vehicle backward movement detector 61 gives a signal to a polarity switching device 62 when the electric vehicle begins to make a backward movement and switches the output polarity of the pulse number-voltage converter 52. An adder 53 adds up a slip frequency command value fSP and the revolution frequency fR of an induction motor 3, and outputs the frequency command fE of an inverter 2. At a current controlling device 42, the current IM of the motor is compared with the command value IP, and the output voltage of the inverter 2 is controlled. Through these procedures, the starting of the vehicle at an increasing grade can be performed reliably.

87. 发明专利

JPS5815403A CONTROL SYSTEM FOR INDUCTION MOTOR TYPE ELECTRIC RAILWAY CAR 失效
公开(公告)号：JPS5815403A
公开(公告)日：1983-01-28
申请号：JP11496081
申请日：1981-07-21
申请人： HITACHI LTD
发明人： OKAMATSU SHIGETOSHI , TSUBOI TAKASHI , JINBO YOSHIJI , IBAMOTO MASAHIKO , TANAMACHI TOKUNOSUKE
IPC分类号： B60L9/16 , B60L15/20 , H02P27/06
摘要： PURPOSE:To make an induction motor type electric railway car to enable to perform starting surely on a grade by a method wherein when the electric railway car stopped on the up grade, after a brake command is released, actual operation of a brake is made to be delayed. CONSTITUTION:When starting of the electric railway car is to be performed, the brake command sent from a brake commander 2 is made to OFF, while a power running command is generated from a power running commander 1. A power running relay PR is energized after a brake relay BR is made to OFF and the b contact thereof is closed. When the railway vehicle stopped on the up grade having the prescribed value or more, because a grade relay GR operates, the brake command is outputted forcibly by a circuit to be constituted with the a contact of a timer TD and the a contact of the grade relay GR continuously till time when the timer TD operates inputting the power running command. Accordingly the brake is released after power running torque rose sufficiently when starting on the grade is to be performed, and the retreating speed can be made to zero.

88. 发明专利

JPS56112801A CONTROL DEVICE FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPS56112801A
公开(公告)日：1981-09-05
申请号：JP1364180
申请日：1980-02-08
申请人： HITACHI LTD
发明人： JINBOU YOSHIJI , TSUBOI TAKASHI , KOBAYASHI TEIJI
IPC分类号： B60L3/04 , B60L3/00
摘要： PURPOSE:To enable driving operation of the electric car without any special resetting operation when supplied-power voltage is restored after the main circuit is interrupted by the fall of the supplied-power voltage of the electric car by providing a means for automatically resetting a supplied-power voltage detector. CONSTITUTION:When the supplied-power voltage of the electric car falls below a prescribed value due to separation from a power line while the car is driven, the relay contact LVR of the supplied-power voltage detecting means is turned off and thereby a main-motor circuit is interrupted from the supplied-power circuit from a collector. Then, when the supplied-power voltage returns to the prescribed value, LVR is also turned on, and if a master controller MC is retained in the state ''on'', a driver can continue the control of the electric car by MC without any special operation. In the case when the supplied-power voltage is not restored to the prescribed value for a long time due to a trouble of a power-supply system and the like, the driver returns MC to the position of ''off'' for safety. When the voltage is restored to the prescribed value and MC is turned on by the driver, however, a relay coil R for resetting is actuated and the detecting means can be reset only by usual operation of MC without any special manual resetting operation for the supplied-power voltage detecting means.

89. 发明专利

JPS55162802A CONTROL SYSTEM FOR ELECTRIC VEHICLE WITH INDUCTION MOTOR 失效
公开(公告)号：JPS55162802A
公开(公告)日：1980-12-18
申请号：JP7006879
申请日：1979-06-06
申请人： HITACHI LTD
发明人： OKAMATSU SHIGETOSHI , TSUBOI TAKASHI , SHIBAMOTO MASAHIKO , NARITA HIROSHI , TAKATSU EIJI
IPC分类号： B60L9/16 , B60L9/18 , B60L9/24 , H02P27/06
摘要： PURPOSE:To suppress the racing and slip running of a driving wheel, by installing a speed detector for a driven wheel coupled to no induction motor and by avoiding the driven wheel from being air-braked for vehicle braking. CONSTITUTION:Induction motors 21-24 are coupled to driging wheels 31-34. A speed detector 45 is installed for a driven wheel 35 coupled to no induction motor. The detection signal of the detector is applied to a frequency pattern generator 6. The output frequency of an inverter is set at a value equal to the difference between rotational frequency fM and slip frequency fS. The driven wheel is not air-braked in the braking of a vehicle so that the driven wheel does not perform slip running in the vehicle braking. The detection signal fM always represents the speed of the vehicle. The induction motors are driven with frequency fD appropriate to the vehicle speed. This results in suppressing the slip running velocity of the driving wheels and providing a high adhesion coefficient.

90. 发明专利

JPS5534814A CONTROL DEVICE FOR AC ELECTRIC CAR 失效
公开(公告)号：JPS5534814A
公开(公告)日：1980-03-11
申请号：JP10627378
申请日：1978-09-01
申请人： HITACHI LTD
发明人： TSUBOI TAKASHI
IPC分类号： B60L9/12 , H02P5/68
摘要： PURPOSE:To increase re-adhesion characteristics at the time of traction-wheel slipping, by providing a plurality of rectifiers which operates commonly to a plurality of motors, and a plurality of rectifiers which control individual motors separately. CONSTITUTION:One bridge-rectifier circuit in a rectifier assembly 2 wherein four single-phase bridge rectifiers are connected in 4 stages is divided into 4 rectifier circuits 211-214 in parallel, and the dc output terminals of the rectifiers 211-214 are connected to 4 motors 31-34. When a traction-wheel slips, the torque of the slipping motor can be reduced without giving an impact on the torque of the motors which are not slipping, by squeezing the phase of the rectifier circuit corresponding to the motor shaft of the slipping motor so as to reduce the motor current which is driving the slipping wheel.

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