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1. 发明专利

JPH0920469A CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH0920469A
公开(公告)日：1997-01-21
申请号：JP16850495
申请日：1995-07-04
申请人： HITACHI LTD , HITACHI MITO ENG KK
发明人： YOKOYAMA YASUHIRO , KASAI SHOJI , HIROSE MASAYUKI
IPC分类号： B66B1/34 , H05K1/00 , H05K1/18
摘要： PROBLEM TO BE SOLVED: To provide commonness of a part by constituting a plurality of electronic circuits of different function in a single electronic part, and giving a function selecting signal from the outside, so that a plurality of the functions can be used, in the electronic circuit mounted on a control panel of an elevator. SOLUTION: A printed board 1 is divided into two parts, main microcomputer part 2 and auxiliary microcomputer part 3, to respectively constitute the main microcomputer part 2 by circuits A to C, E part 4a to 4c and by four blocks 4e, and the auxiliary microcomputer part 3 by circuits A, D and three blocks of F parts, 4a, 4d, 4f. In the case of giving an H signal to a function selecting signal 11, each circuit 4b, 4c is operated to perform inputting/outputting a signal relating to each circuit 4b, 4c (circuit 4d is placed in an inoperative condition). In the case of giving an L signal to the function selecting signal 11, the circuit 4d is operated to perform inputting/outputting a signal relating to the circuit 4d (circuits 4b, 4c are placed in an inoperative condition).

2. 发明专利

JPH08184426A MISALIGNMENT DETECTOR FOR RAIL BASED ON OSCILLATORY ACCELERATION OF AXLE BOX 失效
公开(公告)号：JPH08184426A
公开(公告)日：1996-07-16
申请号：JP32664294
申请日：1994-12-28
申请人： HITACHI LTD
发明人： NAGANO JUNJI , KASAI SHOJI , HIROTSU TETSUJI
IPC分类号： E01B35/00 , B61K9/08 , G01B21/00 , G01B21/20
摘要： PURPOSE: To realize comfortable operation of a vehicle at all times by providing an oscillatory acceleration sensor fixed to the axle box of a rolling stock, an amplifier, an integration unit for integrating the output from a low-pass filter two times. CONSTITUTION: Output from a vertical oscillatory acceleration sensor 1 is fed to a sensitivity correction unit 4 through an amplifier 2 and a low-pass filter 3. In order to make uniform the sensitivity over a predetermined frequency range, the unit 4 functions to multiply the gain of the amplifier 2 by a coefficient. Output from the unit 4 is integrated by integrators 5, 6 for the input time. A track misalignment decision unit 8 compares the output from the integrator 6 with a predetermined reference value to decide whether an abnormality is present or not. If an abnormality is present, a signal representative of abnormality is displayed along with a traveling position and recorded on a recorder 9.

3. 发明专利

JPH07165383A DOOR CONTROL DEVICE FOR ELEVATOR 失效
公开(公告)号：JPH07165383A
公开(公告)日：1995-06-27
申请号：JP34262293
申请日：1993-12-14
申请人： HITACHI LTD
发明人： KASAI SHOJI , ONO YOICHI , TAKAHASHI HIDEAKI
IPC分类号： B66B13/14
摘要： PURPOSE:To provide a door control device for an elevator which suits prevention of the generation of vibration of a door during opening and operation of a door and control of smooth opening and closing of a door. CONSTITUTION:In a door closing opening closing device for an elevator employing link mechanisms 7a and 7b, a means is provided to calculate a ratio between the speeds of doors 1a and 1b determined by link mechanisms 7a and 7b and the speed of a door motor 4, i.e., a reduction ratio, as the position functions of the doors 1a and 1b. A means is provided to change a gain constant by which the control response speed of a control system for the door motor 4 is determined so that a loop gain during opening closing operation forms a stable control system throughout the whole area of a door opening closing region based on a gain constant by which a determined reduction ratio and a predetermined control response speed of door control are determined.

4. 发明专利

JPH0787612A CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH0787612A
公开(公告)日：1995-03-31
申请号：JP23280593
申请日：1993-09-20
申请人： HITACHI LTD
发明人： KITABAYASHI HIDEAKI , IWATAKI MASAHITO , TAKAI HIDEO , KASAI SHOJI
IPC分类号： B60L3/00 , B60L9/16 , H02P5/74 , H02P27/06 , H02P7/63 , H02P7/74
摘要： PURPOSE:To suppress the generation of noise from a flexible shaft coupling for coupling a main motor and a gear unit at the time of coasting. CONSTITUTION:A torque operating section 15 receives a coasting torque command 14 from a main controller 11 and a main motor current from each main motor and produces an output such that the total torque is offset. A main motor controller controls the main motors 16 individually to produce powering or regenerative torque.

5. 发明专利

JPH06217410A CONTROLLER FOR INDUCTION MOTOR TYPE ELECTRIC VEHICLE 失效
公开(公告)号：JPH06217410A
公开(公告)日：1994-08-05
申请号：JP29939793
申请日：1993-11-30
申请人： HITACHI LTD
发明人： KASAI SHOJI , NAKAMURA KIYOSHI , HIROTSU TETSUJI
IPC分类号： B60L9/18
摘要： PURPOSE:To allow high adhesion operation by operating a plurality of induction motor with the outputs from dedicated inverters and selecting a minimum value and a maximum value, respectively, for powering and braking from a plurality of rotational speed signals thereby preventing the idling quickly. CONSTITUTION:DC current is taken from a trolley wire 1 through a pantograph 2 and a plurality of reactors 31a-31i into inverters 33a-33i where the DC current is inverted into three-phase AC current for driving three-phase induction motors 350a-350i. Highest and lowest rotational speeds of each motor in (a)-(i) systems are selected by selectors 5a-5i and delivered to rotational speed selectors 80a-80i for own and other systems. Minimum or maximum rotational speed of each wheel is selected as the rotational speed of each motor, respectively, for powering or braking. This constitution runs an electric vehicle under micro-idling state to allow high adhesion operation and increases the expected adhesion coefficient of the entire train thus realizing high speed high acceleration/ deceleration operation.

6. 发明专利

JPH05193851A ELEVATOR DEVICE 失效
公开(公告)号：JPH05193851A
公开(公告)日：1993-08-03
申请号：JP28415592
申请日：1992-10-22
申请人： HITACHI LTD
发明人： KASAI SHOJI , YONEDA KENJI , KOMATSU TSUTOMU
IPC分类号： B66B3/00 , B66B3/02
摘要： PURPOSE:To perform an energy saving guide display of an elevator without worsening serviceability. CONSTITUTION:An elevator control device (host) 1 of an elevator system having service stories from B1F to 8F is connected to an I/O transmission control unit 2 and further to input/output terminal units (hereinafter, called terminal abbreviated) 4a, 4b, 19a, 19b, 6, 13, set up to each story and in-car operation panel or the like, by buses (series data transmission line) 3a, 3b. Accordingly, an energy saving guide display of an elevator can be performed without worsening improvement of serviceability.

7. 发明专利

JPH0454801A CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH0454801A
公开(公告)日：1992-02-21
申请号：JP15974690
申请日：1990-06-20
申请人： HITACHI LTD
发明人： KASAI SHOJI , HIROTSU TETSUJI
IPC分类号： H02P5/46 , B60L7/18 , B60L9/18 , H02P27/06
摘要： PURPOSE:To realize high acceleration and deceleration by controlling output current of an inverter based on the difference between a reference frequency detected through a plurality of induction motors being driven by a single inverter and the input frequency of the inverter. CONSTITUTION:DC current collected from a stringing l is converted through a single inverter 5 into VVVF current for driving a plurality of induction motors 6A-6D. Rotational frequency is then detected through pulse generators 7A-7D and a minimum frequency is operated 8 for powering whereas a maximum frequency is operated for regeneration thus producing a reference frequency fro. A motor current operating section 15 determines the slip frequency of motor under adhesion based on the difference between fro and input frequency fINV to the inverter 5 and then determines a corresponding current signal IMO. which is compared with a current pattern IP. The difference IM is then converted 12 into a slip frequency fs and the slip frequency fsp from a pattern generator 14 is added 13 fro thus controlling the inverter frequency fINV such that the motor current will be constant.

8. 发明专利

JPH03256108A RESET CIRCUIT FOR DIGITAL SYSTEM 失效
公开(公告)号：JPH03256108A
公开(公告)日：1991-11-14
申请号：JP5367290
申请日：1990-03-07
申请人： HITACHI LTD
发明人： KASAI SHOJI , HIROSE MASAYUKI , SAKATA KAZUHIRO , SUGIYAMA MASAO
IPC分类号： G06F1/24
摘要： PURPOSE:To prevent the generation of runaway in a microprocessor or miswriting in a memory by connecting a voltage monitoring IC with a a low operation power supply voltage to the output of the other voltage monitoring IC so that these ICs are used for resetting the microprocessor and turning on/off a power supply for the memory. CONSTITUTION:The voltage monitoring IC 1 is connected to the output of the voltage monitoring IC 2 with the low operation power supply voltage, the node between both the ICs 1, 2 is connected to the reset terminal of the microprocessor 3, a reset line L6 inputted to the chip select (CS) terminals of respective memories 5, a decoding circuit 4 for decoding an address bus L9, and the output lines L8 of the circuit 4 are connected to the other CS terminals of respective memories 5, and the micropocessor 3 and the memories 5 are connected to a data bus L7. When the operation of the IC 1 exceeds the operable voltage point (a) of the processor at the rise of the power supply, a reset signal is outputted. The reset signal is outputted before the IC 2 arrives at the point (a). Thereby, an OR logic between the outputs of the ICs 1, 2 is outputted to the line L6. Since the IC 1 is reset before the operation of the microprocessor 3, the microprocessor 3 can be prevented from generating runaway.

9. 发明专利

JPH02249877A ELEVATOR CONTROL SYSTEM 失效
公开(公告)号：JPH02249877A
公开(公告)日：1990-10-05
申请号：JP6621789
申请日：1989-03-20
申请人： HITACHI LTD
发明人： SUZUKI MASAHITO , YAMAZAKI MASACHIKA , INABA HIROMI , NAKAMURA KIYOSHI , SAKAI YOSHIO , NAKADA TAKAFUMI , KOMATSU TSUTOMU , KASAI SHOJI , FUJINO ATSUYA
IPC分类号： B66B1/06 , B66B1/18 , B66B1/20 , B66B1/24 , B66B1/34 , B66B3/00 , B66B5/00
摘要： PURPOSE:To improve elevator operation efficiency and monitoring performance by performing operation control over an elevator cage on the basis of image processing results of both first and second image processing means processing an image of a camera means for the cage or a floor hall. CONSTITUTION:A group control system 1 receives information on hall call buttons 8-1 to 8-4 of both n and m floors and cage control panels 10-1 to 10-4 via respective machine controllers 2-1 to 2-4. In addition, it inputs waiting passenger status by camera units 11-5 to 11-12 and image processors 12-5 to 12-12 installed both n and m floors and cage passenger conditions by camera units 11-1 to 11-4 and image processors 12-1 to 12-4 via an image generalizer 4, and performs operation control over an elevator, while it outputs guide information to indicators 13-1 to 13-8 at each via indicator controllers 3-1 to 3-4. In addition, a cage and a hall on a monitor 7 through a monitoring unit 6. Thus, operation efficiency and crime prevention-supervisory performance can be improved.

10. 发明专利

JPH0281886A COMMUNICATION EXPANDING METHOD FOR ELEVATOR 失效
公开(公告)号：JPH0281886A
公开(公告)日：1990-03-22
申请号：JP23001388
申请日：1988-09-16
申请人： HITACHI LTD
发明人： KASAI SHOJI , YONEDA KENJI , KAJIYAMA TOSHIKI , SAKATA KAZUHIRO
IPC分类号： B66B1/06 , B66B3/00 , H04Q9/00
摘要： PURPOSE:To prevent a noise entering a bus buffer from an outside by making the communication of the bus buffer impossible except when the bus buffer for expanding and communicating can be inputted and outputted. CONSTITUTION:When a central processing unit 2 issues an address for selecting an expanding and communicating board 12, signal decoded in a decode circuit 3 is outputted. The decoded signal allows the expanding and communicating bus buffer 7 of a microcomputer to be inputted or inputted and outputted. There by, since the microcomputer 1 prevents noise entering from the expanding and communicating bus buffer when the expanding and communicating board 12 is not communicated from entering the bus of the microcomputer 1, a malfunc tion due to the noise is not generated.

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