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公开(公告)号：US3877387A
公开(公告)日：1975-04-15
申请号：US30441172
申请日：1972-11-07
Applicant: HITACHI LTD
Inventor： KASAI SYOJI , ONODA YOSHIMITSU
CPC classification number: B60L13/035 , B60L2200/26 , B61C9/00
Abstract: In an electric traction car comprising in combination adhesion drive means which drives the car through wheels driven by electric motors and electromagnetic drive or brake means which drives or brakes the car not through the wheels, such as linear motors or eddy-current brake means, said electromagnetic drive or brake means is mounted on the car frame through an axle provided independently of that for the adhesion drive means and the wheels, whereby an increase and concentration of the unsprung weight are avoided.
Abstract translation: 一种电动牵引车，其特征在于，包括：组合式粘合驱动装置，其通过由电动机驱动的车轮驱动车辆;电磁驱动装置或驱动或制动车辆的车辆，例如线性电动机或涡流制动装置， 电磁驱动或制动装置通过独立于粘合驱动装置和车轮的轴设置在车架上，从而避免了簧下重量的增加和集中。
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公开(公告)号：GB2243906B
公开(公告)日：1994-03-02
申请号：GB9104342
申请日：1991-03-01
Applicant: HITACHI LTD
Inventor： SUZUKI MASATO , INABA HIROMI , TAKENAGA HIROSHI , OONUMA NAOTO , NAKAMURA KIYOSHI , SAKAI YOSHIO , YONEDA KENJI , NAKATA NAOFUMI , KASAI SYOJI , YAMAZAKI MASACHIKA
IPC: B66B3/00 , B65H3/00 , B66B1/20 , B66B1/24 , B66B1/34 , G05B13/02 , G06T1/00 , G06T7/60 , H04N7/18 , G06F15/70
Abstract: An image of an elevator hall or an inside of elevator car is acquired by photographing apparatus, and the number of waiting passenger is detected by comparing the above-mentioned image with a background image when no passenger is present at the elevator hall. Second image processing apparatus with high precision is prepared by the same image information as that of first image processing apparatus, teacher information derived therefrom is compared with an output from the first image processing apparatus. If the teacher information is not coincident with the output from the first image processing means, parameters required for performing the image process by the first image processing appartus, for instance, constants, threshold values and weight coefficients employed in an image processing algorithm are adjusted.
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公开(公告)号：GB2230622A
公开(公告)日：1990-10-24
申请号：GB9005985
申请日：1990-03-16
Applicant: HITACHI LTD
Inventor： SUZUKI MASATO , YAMAZAKI MASACHIKA , IBABA HIROMI , NAKAMURA KIYOSHI , SAKAI YOSHIO , NAKATA NAOFUMI , KOMATSU CHIKARA , KASAI SYOJI , FUJINO ATSUYA
Abstract: The system has cameras 11-5 to 11-12 located inside lift cars and/or landing stages to view passengers, and first and second image processing means for processing data from the cameras. As shown, each camera has an associated first image processor 12-5 to 12-12 which provides analysis of a lower accuracy than a common, second image processor 4 (30% error in estimating passenger numbers as compared with 5%). The greater accuracy provided by the second processor 4 may be used, for example, to verify that only two passengers are present in a car, in which case for crime prevention the car is stopped at every floor. Another example in which processor 4 is called upon, is in response to operation of a special call button when it is necessary to determine whether or not a passenger is in a wheelchair.
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公开(公告)号：DE2255096A1
公开(公告)日：1973-06-07
申请号：DE2255096
申请日：1972-11-10
Applicant: HITACHI LTD
Inventor： KASAI SYOJI , ONODA YOSHIMITSU
IPC: B61C15/00 , B60L13/03 , B61C9/00 , H02K41/025 , B61C9/38
Abstract: In an electric traction car comprising in combination adhesion drive means which drives the car through wheels driven by electric motors and electromagnetic drive or brake means which drives or brakes the car not through the wheels, such as linear motors or eddy-current brake means, said electromagnetic drive or brake means is mounted on the car frame through an axle provided independently of that for the adhesion drive means and the wheels, whereby an increase and concentration of the unsprung weight are avoided.
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公开(公告)号：CA1266713A
公开(公告)日：1990-03-13
申请号：CA515869
申请日：1986-08-13
Applicant: HITACHI LTD
Inventor： HIROTSU TETSUJI , NAKAMURA KIYOSHI , KASAI SYOJI , YAMAGUCHI HIROSHI , KOZU EIJI
Abstract: In control apparatus for maintaining the traction of rolling stock, e.g. an electrically powered rail vehicle, the commencement of a developing period of slip is detected by the fact that a time-differential value vs of a creep velocity vs (a relative velocity between a peripheral velocity vm of a driving wheel and a vehicle velocity vt) exceeds a predetermined reference .delta.1. The termination of this developing period is detected by the fact that a time-differential value vm of the peripheral velocity vm becomes equal to zero. During the developing period, a torque command Tp to a main motor controller is decreased by a re-adhesion control signal Tfa which is formed by the combination of a time-dependent component e1 and a slip-dependent component e2. After termination of the developing period, the torque command Tp is decreased with time at an appropriate time constant. According to the present invention, the arithmetic logic operation for control can be greatly simplified, without deterioration of the adhesion performance of the vehicle.
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Patent Agency Ranking
公开(公告)号：ZA866128B
公开(公告)日：1987-03-25
申请号：ZA866128
申请日：1986-08-14
Applicant: HITACHI LTD
Inventor： HIROTSU TETSUJI , NAKAMURA KIYOSHI , KASAI SYOJI , YAMAGUCHI HIROSHI , KOZU EIJI
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公开(公告)号：DE602005005873T2
公开(公告)日：2009-07-02
申请号：DE602005005873
申请日：2005-02-17
Applicant: HITACHI LTD
Inventor： KASAI SYOJI , AMAZAWA TOSHIHARU , KURISAKI KATSUYOSHI
IPC: B61B1/02 , B61L23/00 , G01V8/20 , G08B13/183
Abstract: The invention provides a platform gate door device equipped with highly reliable photoelectric obstacle detectors that do not malfunction by disturbance light that moves, such as sunlight. The platform gate door device comprises a platform gate door 13 installed on a platform at a position where passengers get on and off a vehicle; a door control device 4 for opening and closing the platform gate door; at least two photoelectric obstacle detectors 2 disposed between the platform gate door 13 and the vehicle for detecting a presence of an obstacle, wherein each obstacle detector 2 has a light emitter 21 and a light receiver 22 disposed on either side of an opening 12 of the platform gate door, and wherein the obstacle detectors 2 are arranged so that the direction of emission from the light emitters are mutually inversed; and a switching means 3 for activating one of the plurality of obstacle detectors.
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公开(公告)号：GB2230622B
公开(公告)日：1993-07-07
申请号：GB9005985
申请日：1990-03-16
Applicant: HITACHI LTD
Inventor： SUZUKI MASATO , YAMAZAKI MASACHIKA , IBABA HIROMI , NAKAMURA KIYOSHI , SAKAI YOSHIO , NAKATA NAOFUMI , KOMATSU CHIKARA , KASAI SYOJI , FUJINO ATSUYA
Abstract: An elevator control system for controlling movement of cages up and down in accordance with the situation of waiting persons in landing places or passengers in the cages detected by image pickup devices and other detecting devices includes first and second image processors, the image processing level of the second image processor being not lower than that of the first image processor. The system further includes an elevator controller for controlling movement of the cages up and down, the elevator controller including a device for applying the result of image processing performed by the first image processor to the control of the cages, and a device for applying the result of image processing performed by the second image processor to the control of the cages when the image processing is carried out based on the result of image processing performed by the first image processor and other information pertaining to passengers and waiting persons detected by the other detecting devices.
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公开(公告)号：GB2261749A
公开(公告)日：1993-05-26
申请号：GB9224415
申请日：1992-11-20
Applicant: HITACHI LTD
Inventor： KASAI SYOJI , TAKAHASHI HIDEAKI , YAHIRO SEINOSUKE
Abstract: Upon malfunction of an elevator 1A, 1B in a multi-car (eg two) car elevator system, the positions of the two elevator cars 1A, 1B are determined by comparing the current output of a rotary encoder associated with each car with the stored value obtained when each car was at a reference position eg the lowest floor. The speed of the rescue elevator is then controlled in dependence upon its position relative to the malfunctioning elevator car. Each encoder 8A, 8B is connected to the power supply and position determining means 9A, 9B of the other car so that the position of the malfunctioning car can be determined even during a power failure. Power consumption is reduced since only the reference positions need to be stored.
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公开(公告)号：DE3684401D1
公开(公告)日：1992-04-23
申请号：DE3684401
申请日：1986-08-11
Applicant: HITACHI LTD
Inventor： HIROTSU TETSUJI , NAKAMURA KIYOSHI , KASAI SYOJI , YAMAGUCHI HIROSHI , KOZU EIJI
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