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1. 发明专利

JPH08298704A STOP CONTROLLER OF LINEAR MOTOR 失效
公开(公告)号：JPH08298704A
公开(公告)日：1996-11-12
申请号：JP10267095
申请日：1995-04-26
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KOURIKI AKIHIRO , KOIKE SHIGEKI , TAKAYAMA MASAYUKI
IPC分类号： B60L13/03 , H02P7/00 , H02P25/06 , H02P25/064
摘要： PURPOSE: To improve a fixed position stopping accuracy by preventing a driving force from fluctuating when stopping a traveling body (train). CONSTITUTION: Position information θ corresponding to a vehicle position 1 and an actual phase θ is set to a phase setting part 4 in advance and the stored position information θ' is successively outputted from this side of a target stop position when controlling stop. An adder 5 adds the phase information θ' and the actual phase θ and outputs an operation phase θ". A multiplier 6 multiplies a current command value Ip by the operation phase θ" and a power converter outputs a current pattern to be conducted to an armature.

2. 发明专利

JPH0583807A LINEAR SYNCHRONOUS MOTOR CONTROLLER 失效
公开(公告)号：JPH0583807A
公开(公告)日：1993-04-02
申请号：JP26837891
申请日：1991-09-19
申请人： HITACHI LTD , HITACHI TECHNO ENG
发明人： NOGUCHI TETSURO , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L13/00 , B60L15/00 , H02P25/06
摘要： PURPOSE:To prevent pulsation of thrust, when a vehicle passes across adjacent thrust coil sections, without installing a signal line for passing peak current value by providing an operating section for predicting a necessary current when the vehicle advances from one thrust coil section into next thrust coil section. CONSTITUTION:Since a vehicle 1 travels within the position detection range of a cross induction line 3b, a position signal 4b is fed from the vehicle 1 through a relay 5b to a position detector 6b and a position detection signal 7b is fed to a phase synchronization control section 9. A drive controller 8 can graspe the phase from a time point when the behicle 1 is traveling on an adjacent thrust coil group 2a. With regard to the current value, a current value Ip predicted at a prediction current operating section 10 is employed as an initial value at a proportional control section 13 and control is performed based on the initial value when the vehicle 1 advances to a thrust coil group 2b. The predicted current value Ip can be matched at the prediction current operating section 10 with the current value of the drive controller 8a.

3. 发明专利

JPH03231161A PHASE DETECTOR 失效
公开(公告)号：JPH03231161A
公开(公告)日：1991-10-15
申请号：JP2740290
申请日：1990-02-07
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： KOIKE SHIGEKI , IKEDA HARUO
IPC分类号： G01R25/00
摘要： PURPOSE:To enhance phase detection accuracy by providing two adding means for adding three-phase AC instantaneous values, two dividing means for dividing the respective sums and a phase detecting means. CONSTITUTION:Adders 1, 2 respectively calculate (2u-V-W)=SIGMAA and (-3 V+3 W)=SIGMAB and dividers 3, 4 respectively calculate SIGMAA/ B, i.e. a tantheta value and SIGMAB/ A, i.e. a cottheta value and these values are digitally converted by A/D converters 6, 7. Polarities are calculated by the adders 1, 2 for the purpose of the discrimination of a quadrant and further discriminated based on whether the value of the divider 3 is 1 or more or less and it is judged which of tan and cot is used in phase convertion by a comparator 5 and either one of them is used to calculate a digital phase by a converter 9.

4. 发明专利

JPH02146906A SPEED CONTROLLER FOR LINEAR SYNCHRONOUS MOTOR DRIVE VEHICLE 失效
公开(公告)号：JPH02146906A
公开(公告)日：1990-06-06
申请号：JP29940888
申请日：1988-11-29
申请人： HITACHI LTD
发明人： UCHIYAMA TOYOHARU , NAKAMURA KIYOSHI , KOIKE SHIGEKI
IPC分类号： B60L13/03
摘要： PURPOSE:To prevent step-out by switching the speed command for APR into a speed pattern through a control mode scheduler when the phase difference at the input side of an automatic phase regulator (APR) is large. CONSTITUTION:An operation pattern generator 1 produces a reference phase, an acceleration pattern and a speed pattern and feeds them. Phases obtained through phase detectors 10, 11 in a synchronous control section 12 is subtracted from a reference phase and the difference is fed to an APR3. The APR3 feeds a speed command corresponding to the phase difference to a control mode scheduler (MS)2. CMS2 switches the speed command to a speed pattern if the speed command fed from the APR3 is large then it is subtracted from a speed signal fed from the synchronous control section 12, and a current command is outputted from an automatic speed regulator 4 and subjected to rate control 5 then it is multiplied 6 by a position signal fed from the synchronous control section 12 thus feeding the current pattern to a power converter 7. By such arrangement, speed control is carried out stably.

5. 发明专利

JPH0241974A TRACK STRUCTURE OF FLOAT-TYPE RAILROAD 失效
公开(公告)号：JPH0241974A
公开(公告)日：1990-02-13
申请号：JP19114088
申请日：1988-07-30
申请人： HITACHI LTD
发明人： ISAKA MASAYOSHI , NAKAMURA KIYOSHI , KOIKE SHIGEKI
IPC分类号： E01B25/00 , B61B13/08 , E01B1/00 , E01B25/32
摘要： PURPOSE:To keep rainwater from being scattered in the lower road-way and snow from staying by providing the first groove between two lines of plural floating round coils, letting water or hot water flow in the groove, letting the water in the groove flow in the drainage. CONSTITUTION:Side grooves 3 for connecting the second grooves provided between a U-shaped guide way 1 and a running path slab 11 to the first groove provided between floating ground coils 221, 222 arranged in two lines are connected to right-angled grooves 4 provided in the spaces of the floating ground coils 221, 222. Rainwater which fell between the U-shaped guide way 1 and the running path slab 11 and rainwater which fell on the floating ground coils 221, 222 are collected in the first groove 2 through the side grooves 3 and the right-angled groove 4 and let flow in drainage through a drain guide groove 5 and a gutter 6 so that rainwater will not stay in the U-shaped guide way 1. When the snow stays, the snow is melt by hot water to be discharged to the drainage.

6. 发明专利

JPS6430405A AUXILIARY DRIVING AND AUXILIARY SUPPORTING EQUIPMENT FOR ELECTRIC CAR 失效
公开(公告)号：JPS6430405A
公开(公告)日：1989-02-01
申请号：JP18335987
申请日：1987-07-24
申请人： HITACHI LTD
发明人： KOIKE SHIGEKI
IPC分类号： B60L13/04
摘要： PURPOSE:To enable making a speed higher by providing a specific block solenoid coil and by using an induced repulsion between a superconductive magnet and a solenoid coil. CONSTITUTION:Superconductive magnets SCM are provided on an electric rolling stock TR and solenoid coils SC, on the ground. In this case, a driving force is determined by the magnetic flux of said superconductive magnet SCM and the shifting magnetic flux generated from said solenoid coil SC. Said driving force is controlled by causing AC current synchronized with the position of the superconductive magnet SCM to flow through the solenoid coil SCC from a power converter PCC. Braking is conducted by causing an electric current to flow with a phase differing 180 deg. from that of driving. In this manner, the electric rail-car known heretofore can be used for high acceleration and deceleration and high speed operation.

7. 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.

8. 发明专利

JPS59188304A Vehicular power source of linear motor railcar 失效
标题翻译：线性电机的电动力源
公开(公告)号：JPS59188304A
公开(公告)日：1984-10-25
申请号：JP6066783
申请日：1983-04-08
申请人： Hitachi Ltd , Japanese National Railways
发明人： SASAKI TAKUJI , YAMAMOTO HIDEKI , FUJIWARA SHIYUNSUKE , KOIKE SHIGEKI , TSUBOI TAKASHI , TOYODA EIICHI , OZAWA TSUTOMU
IPC分类号： B60L1/00 , B60L13/04 , B60L15/00 , B60M7/00
CPC分类号： B60L15/005 , B60L2200/26
摘要： PURPOSE:To maintain power consumption output as a constant value by varying the power conversion efficiency of a converter for converting the power of the induction coil output in response to the detecting level of an induction winding output detector. CONSTITUTION:An induction winding output detector 16 detects the output of an induction winding 5 to supply a detecting level in response to the speed of a railcar to a power converter 12. The converter 12 varies the power conversion output via the detecting output of a current detector 11 for detecting the output current of a rectifier 10, and varies the power conversion efficiency in response to the output level of the detector 16. Thus, since the power conversion output of the maximum output in response to the speed of the railcar is supplied to a battery, the power of the maximum output is always outputted from the inverter 8 irrespective of the variations in the speed of the railcar and the capacity of a load.
摘要翻译：目的：通过根据感应线圈输出检测器的检测电平改变转换器的功率转换效率来转换感应线圈输出的功率，将功耗输出保持为恒定值。构成：感应绕组输出检测器16检测感应线圈5的输出，以响应于轨道车辆的速度向功率转换器12提供检测电平。转换器12通过电流的检测输出来改变功率转换输出检测器11，用于检测整流器10的输出电流，并且响应于检测器16的输出电平而改变功率转换效率。因此，由于提供响应于轨道车速度的最大输出的功率转换输出对于电池，无论轨道车辆的速度和负载的容量的变化如何，始终从逆变器8输出最大输出的功率。

9. 发明专利

JPS58192404A Vehicle running system by linear motor 失效
标题翻译：线性电机的车辆行驶系统
公开(公告)号：JPS58192404A
公开(公告)日：1983-11-09
申请号：JP7540382
申请日：1982-05-07
申请人： Hitachi Ltd , Japanese National Railways
发明人： IKEDA HARUO , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L13/06 , H02P25/06
CPC分类号： B60L13/06 , B60L2200/26
摘要： PURPOSE:To detect the position of a vehicle with an inexpensive and simple facility by transmitting and receiving a specific signal through a propulsion coil between the vehicle and a rail side. CONSTITUTION:Transmission/reception antennas SC1, SC2 which have an air core coil, a Hall element, a loop or a rod antenna are provided on a vehicle TR which is opposed to propulsion coils LSM1, LSM2. Signals are transmitted and received via the antennas SC1, SC2 between the vehicle and the ground, thereby detecting the position of the vehicle. The coils LSM1, LSM2 are composed of the same structure, and when the same current is flowed through the coils LSM1, LSM2, thereby allowing the coils LSM1, LSM2 to provide the same propulsion force at the vehicle TR.
摘要翻译：目的：通过在车辆和轨道侧之间通过推进线圈发送和接收特定信号来检测廉价简单设施的车辆位置。构成：具有空心线圈的发送/接收天线SC1，SC2，霍尔元件，环路或杆状天线设置在与推进线圈LSM1，LSM2相对的车辆TR上。通过车辆与地面之间的天线SC1，SC2发送接收信号，从而检测车辆的位置。线圈LSM1，LSM2由相同的结构构成，当相同的电流流过线圈LSM1，LSM2时，线圈LSM1，LSM2在车辆TR上提供相同的推进力。

10. 发明专利

JPS57211905A CURRENT SUPPLYING DEVICE FOR LINEAR MOTOR 失效
公开(公告)号：JPS57211905A
公开(公告)日：1982-12-25
申请号：JP9506081
申请日：1981-06-19
申请人： HITACHI LTD
发明人： NAKAMURA KIYOSHI , ISAKA MASAYOSHI , KOIKE SHIGEKI
IPC分类号： B60L13/03 , B60L15/00 , B60M3/00 , H02P25/06
摘要： PURPOSE:To prevent the decrease in the thrust of a linear motor due to a branch current by dividing propulsion coils connected continuously in series with each other with lead wires, inserting opening and closing means between each propulsion coil unit and a power converter, and feeding a current in the specific sequence. CONSTITUTION:Many propulsion coil units LM1, LM2 or the like are connected in series with each other, are sorted so that the adjacent coil units cross over longer than the effective length of the vehicle, lead wires are provided, are then connected through switches S1, S2 or the like and NS0, NS1 to feeders Fa, Fb and NFa, NFb, and are energized by power converters Ca, Cb operated by a switching unit SC based on a vehicle position signal. Then, the switchings of the switches S, NS and the power converters ca, cb are performed in the specific sequence in response to the positins T1-T3 of the vehicle. Accordingly, the variation in the received electric power can be eliminated, a branch current at the time of switching the coil unit can be eliminated, and the decrease in the thrust can be prevented.

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