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1. 发明专利

JPS5852567A VELOCITY OPERATING SYSTEM OF MOVING BODY 失效
公开(公告)号：JPS5852567A
公开(公告)日：1983-03-28
申请号：JP15057381
申请日：1981-09-25
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： IKEDA HARUO , MAEHARA TOKIO , KOMURO HIROMI
IPC分类号： G01P3/489 , G01P3/42 , G01P3/44 , G01P3/481 , G01P3/64 , G01R29/18
摘要： PURPOSE:To obtain an operation result of a correct velocity, by detecting omission of a pulse by input sequence of each pulse, and correcting the number of input pulses, when operating a velocity from a position signal input pulse of a moving body such as a vehicle, etc. CONSTITUTION:Input levels U, inverted W, V, inverted U, W and inverted V of every specified distance of a moving body are provided to an input pulse input part 1 of a time counting controller 200 through a controlling circuit 100. This input pulse phase number is stored in an input pulse phase number storage part 8 at the time of input. A pulse omission detecting part 9 compares a previous input pulse phase number storage part 10 with the storage part 8, and executes a rationality check of pulse sequence. Unless irrationality exists, the normal pulse number is sent to a position pulse counter 2, and in the event of irrationality, an omitted pulse is calculated from input sequence, a kind of input pulse phase, and a difference between the previous and present input pulse phase numbers, and the number of pulses which have added said result is sent to the counter 2. In this way, even in case when the input pulse number has been omitted, a correct velocity can be operated.

2. 发明专利

JPS56125902A DRIVE CONTROLLER OF LINEAR MOTOR CAR 失效
公开(公告)号：JPS56125902A
公开(公告)日：1981-10-02
申请号：JP2797780
申请日：1980-03-07
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , NAKAMURA KIYOSHI , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L13/00 , H02P7/00 , H02P25/06
摘要： PURPOSE:To improve comfortableness to drive the rolling stock car when change- over to coasting running is to be performed by a method wherein the current value of an electric current pattern is reduced according to the prescribed time constant when a coasting running command is imputted, and the current value is returned to the original value according to the prescribed time constant when the coasting running command is canceled. CONSTITUTION:A phase difference detector 14 outputs the phase difference 15 between a frequency pattern 41 and a position signal 4, and a phase compensator 16 inputs the phase difference 15 to outputs a current peack value. The maximum value of the current peak value is limited by a limiter 17 to form a current peak value pattern 19 via a current peak value pattern regulating part 20. When the coasting running command C is afforded, the current peak value pattern regulating part 20 makes the current peak value pattern 19 to be reduced according to the prescribed time constant, and when the coasting running command C is canceled, it is increased according to the prescribed time constant. The current peak value pattern 19 is multiplied by a current wave form pattern 12 to form a current pattern 5.

3. 发明专利

JPS5829389A DETECTING DEVICE FOR TROUBLE IN LINEAR MOTOR 失效
公开(公告)号：JPS5829389A
公开(公告)日：1983-02-21
申请号：JP12680881
申请日：1981-08-14
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： IKEDA HARUO , KOIKE SHIGEKI , NAKAMURA KIYOSHI
IPC分类号： B60L13/03 , H02P7/00 , H02P25/06
摘要： PURPOSE:To enable sure detection of a trouble irrespective of a distance from a power transforming device, by monitoring the impedance of a feeder line and a unit propulsion winding, and thereby detecting the trouble. CONSTITUTION:A counter electromotive voltage operating element Eem receives a speed signal and a distance signal from a frequency operating element VF processing a vehicle position detection signal PD and a distance operating element PDS, respectively, and operates a counter electromotive voltage. The first impedance operating element CAL1 operates a measured impedance based on the output voltage and output current of a power transoforming element CC and on a counter electromotive voltage signal from the counter electromotive voltage operating element Eem. The second impedance operating element CAL2 reads a reference impedance based on the speed signal and the distance signal. A comparison element COM compares the measured impedance with the reference impedance, and when the difference between them reaches a set value, an abnormality signal is delivered via an output element OUT.

4. 发明专利

JPS57142101A DETECTING METHOD FOR POSITION OF LINEAR MOTOR TYPE TRANSPORT VEHICLE 失效
公开(公告)号：JPS57142101A
公开(公告)日：1982-09-02
申请号：JP2549781
申请日：1981-02-25
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： IKEDA HARUO , YUGE TETSUYA , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L15/00 , H02P25/06 , B60L13/00
摘要： PURPOSE:To enable the detection of one of a current feeding zone, a blocking zone and a unit propulsion winding zone with high reliability by varying the frequency of a carrier of a leakage coaxial cable at every zone of a power converter. CONSTITUTION:Leakage coaxial cables CLX1-LCX3 are coupled through repeaters R1, R2 in every current feeding zone ofa power converter, and the frequencies of the carriers of the cables LCX1-LCX3 in the respective zones are varied. In this manner, when a vehicle exists in the zone, its zone can be always detected, and the reliability of the detection can be accordingly improved.

5. 发明专利

JPS57135364A SPEED OPERATING DEVICE OF MOVING BODY 失效
公开(公告)号：JPS57135364A
公开(公告)日：1982-08-20
申请号：JP2004781
申请日：1981-02-16
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , MAEHARA TOKIO , WATANABE KEIICHIROU , ASAI YASUO
IPC分类号： G01P3/44 , B60L13/03 , G01P3/489 , H02P25/06
摘要： PURPOSE:To obtain a signal proportional to a speed and synchronizing with it, by providing a phase difference calculating part for reflecting a coefficient on a detected phase difference and making it a correcting value, on a speed operating device used for a control device for controlling the moving body such as a vehicle, etc. by outputting a signal being proportional to its speed. CONSTITUTION:A phase difference calculating part 10 is provided between a phase difference inputting part 7 and a phase difference register 9 in a phase correcting circuit of a speed operating device, and a correcting value is obtained by reflecting a coefficient on a detected phase difference TPi. As for said coefficient, since the phase difference inputted this time becomes 2 times in the next phase difference inputting period, the correcting value is provided so as to satisfy the condition such as present time phase difference

6. 发明专利

JPS6033062A PHASE DETECTOR 失效
公开(公告)号：JPS6033062A
公开(公告)日：1985-02-20
申请号：JP14105683
申请日：1983-08-03
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： IKEDA HARUO , KOIKE SHIGEKI
IPC分类号： G01R25/00 , G01R21/00 , H02H3/38
摘要： PURPOSE:To detect a phase of digitally from a three-phase sine wave which varies in waveform and crest value by providing two multipliers which perform multiplication by specific constants at each momentary point of the three-phase alternating current. CONSTITUTION:Respective pieces of phase information on three-phase alternating currents U, V, and W are inputted to the 1st and the 2nd processing circuits 100 and 101, and multiplied by constants k1-k3, and k4-k6 respectively. Those multiplication results are summed up by adders 7 and 8 respectively. The adders 7 and 8 perform specific calculations and their outputs are divided by a computing element 102 as specified and supplied to an A/D converter 103. A multiplier 104 find a phase from the digital conversion value from the A/D converter 103. Thus, the phase is detected digitally from the three-phase sine wave which varies in waveform and crest value.

7. 发明专利

JPS5716596A CONTROLLING DEVICE FOR LINEAR MOTOR 失效
公开(公告)号：JPS5716596A
公开(公告)日：1982-01-28
申请号：JP9060080
申请日：1980-07-04
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , MAEHARA TOKIO , ASAI YASUO , WATANABE KEIICHIROU
IPC分类号： H02P25/06 , H02P7/00
摘要： PURPOSE:To smoothly and effectively return from a step-out of a linear motor by stopping the correction of a current waveform pattern while the phase difference between a current waveform pattern and an output of position detecting means exceeds the prescribed value and during the predetermined time thereafter. CONSTITUTION:A speed arithmetic unit 3 serves to obtain the prescribed distance passing time TL from a position signal 1, and a sinusoidal wave generator 5 serves to form a sinusoidal wave corresponding to 180 deg. at the current angle for the time TL. A phase difference comparator 6 serves to obtain a phase difference between the signal converted from the position signal 1 to sinusoidal wave by a signal converter 2 and a sinusoidal wave signal from the generator 5 as a time TP. A position correcting unit 4 serves to correct the time TL by the phase difference TP. A step-out processor 8 closes a timer contact of a phase difference detector 6 when the phase difference TP exceeds the prescribed value, and opens a ready signal simultaneously. Thus, the return from the step-out can be smoothly performed.

8. 发明专利

JPS56125990A LINEAR SYNCHRONOUS MOTOR CONTROL DEVICE 失效
公开(公告)号：JPS56125990A
公开(公告)日：1981-10-02
申请号：JP2797480
申请日：1980-03-07
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , NAKAMURA KIYOSHI , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L15/00 , H02P25/06
摘要： PURPOSE:To enhance the accuracy of controlling the speed of a linear synchronous motor and the followup property thereof to a speed pattern by controlling the magnitude of a current pattern in response to the phase difference between the position signal and the frequency pattern of the motor. CONSTITUTION:A phase difference detector 23 produces a phase difference signal 24 between the frequency pattern 22 corresponding to the speed pattern of a vehicle and a position detection signal 4, and a phase difference compensating unit 25 produces a current peak value 26 in response to the phase difference signal 24. The maximum value of the current peak value 26 is limited by a current limiter 14 to become a current peak value pattern 15. On the other hand, the pattern 15 is multiplied by a current waveform pattern 20 synchronized with the position signal 4 produced from a current waveform pattern generator 19 by a multiplier 16 to produce a current pattern 5 flowed through the armature coil 2 of the motor.

9. 发明专利

JPS5666103A CONTROLLING SYSTEM OF LINEAR MOTOR 失效
公开(公告)号：JPS5666103A
公开(公告)日：1981-06-04
申请号：JP14294879
申请日：1979-11-02
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L13/00 , H02P7/00 , H02P25/06
摘要： PURPOSE:To reduce the number of position detectors and to eliminate the unbalanced current for the subject motor by a method wherein polyphased position signals are generated collectively at a single-phased position signal. CONSTITUTION:A synchronous controlling section SYC outputs a 3-phase sine wave synchronized on one position signal PDS. This output of the sine wave can be obtained by having a memory element wherein the sine waves for three phases deviating by 120 deg. are memorized and by changing the generating time of said sine waves using the speed V. Also, the above output can be developed by having the memory element memorizing the same sine wave for three phase and by deviating the starting point of the sine wave generation by 120 deg.. And the sine wave suited to the speed is generated by the synchronous controlling section SYC in accordance with the position signal and the value obtained by multiplying the desired propulsive current ''is'' to the sine wave becomes the current pattern ips which will be applied to a propulsive winding.

10. 发明专利

JPS5666102A CONTROLLING SYSTEM OF LINEAR MOTOR 失效
公开(公告)号：JPS5666102A
公开(公告)日：1981-06-04
申请号：JP14294779
申请日：1979-11-02
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD
发明人： SAIJIYOU TAKASHIGE , IKEDA HARUO , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L13/00 , H02P7/00 , H02P25/06
摘要： PURPOSE:To obtain the stabilized thrust without a sudden change in speed for the subject moror by a method wherein a stabilized frequency, coinciding with the speed of a moving body, is oscillated and its phase is adjusted so as to conform with a position detector. CONSTITUTION:The position signal PDS sent from a position detector PD is inputted to a speed calculating section V, where a section travelling time is found and the required speed is calculated. In this case, a stabilized speed VS is calculated by finding the average speed for a plurality of sections. A synchronized waveform generating section SYCP outputs a nonsynchronized 3-phase sine wave SYCPS in accordance with the average speed VS obtained. Also the phase difference signal alphaS for a position detection signal PDS and a synchronized square wave SYCPS is found by a phase comparison section alpha, the former speed signal VS is corrected and the phase difference is successively changed to zero in proportion to the average value alphaTS of a plurality of the phase difference signals alphaS by a phase difference correcting section alphaT and a summing section ADD.

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