JP3125818B2 - Railcar - Google Patents
RailcarInfo
- Publication number
- JP3125818B2 JP3125818B2 JP04120324A JP12032492A JP3125818B2 JP 3125818 B2 JP3125818 B2 JP 3125818B2 JP 04120324 A JP04120324 A JP 04120324A JP 12032492 A JP12032492 A JP 12032492A JP 3125818 B2 JP3125818 B2 JP 3125818B2
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- Prior art keywords
- air pressure
- pressure
- train
- vehicle
- target pattern
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Air-Conditioning For Vehicles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は鉄道車両の制御に係り、
特に、列車内気圧の調整に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to control of railway vehicles,
In particular, it relates to the adjustment of the train internal pressure.
【０００２】[0002]
【従来の技術】列車の乗客に対する環境条件には様々な
ものがある。中でも車内気圧変動は耳に対し、直接生理
的影響を生じる。不快の程度は個人差が大きく、人によ
っては数日間も耳つまり感が続く場合がある。2. Description of the Related Art There are various environmental conditions for train passengers. Above all, fluctuations in the air pressure in the car have a direct physiological effect on the ears. The degree of discomfort varies greatly between individuals, and some people may have ears or feelings for several days.
【０００３】車内気圧変動の主な原因は勾配区間の上り
下りとトンネル通過である。[0003] The main causes of the in-vehicle air pressure fluctuations are the ascending and descending of a gradient section and the passage through a tunnel.
【０００４】従来の対策は、１９７５年３月発行「日立
評論Ｖｏｌ．５７ Ｎｏ．３」第５１頁乃至第５６頁に
記載されているように、車体を気密構造とし、トンネル
進入から通過までの間、車内換気装置の車外に対する吸
排気の締切弁を閉じたり、またはトンネル進入前に予め
車内空気圧が高めになるようにポンプで空気を車内に押
し込んだ後に締切弁を閉じ、トンネル通過後これを緩や
かに開いて排気するというものであった。[0004] As described in "Hitachi Review Vol. 57 No. 3", pp. 51 to 56, published in March 1975, the vehicle body has an airtight structure, and the structure from the entrance to the tunnel to the passage is described. In the meantime, close the shut-off valve for intake and exhaust to the outside of the car ventilator, or close the shut-off valve after pushing air into the car with a pump so that the air pressure inside the car is increased before entering the tunnel, and close it after passing through the tunnel. It was to open slowly and exhaust.
【０００５】[0005]
【発明が解決しようとする課題】従来の方法では、トン
ネルや橋梁下通過に伴う一時的な外気圧変動には対応で
きる。In the conventional method, it is possible to cope with a temporary change in the outside air pressure caused by passing under a tunnel or a bridge.
【０００６】しかし、時速３００Ｋｍを越える高速列車
（例えば、磁気浮上車両など）では高度変化が毎秒３な
いし５ｍ以上と、エレベータ級の速さとなるため、上り
下りの繰り返しの都度、車内空気圧変動が発生し、耳に
不快感を与える。However, in a high-speed train exceeding 300 km / h (for example, a magnetic levitation vehicle), the altitude change is 3 to 5 m or more per second, which is an elevator class speed. And discomfort to the ears.
【０００７】従って長時間に渡る気圧変化、即ち長距離
を移動する途中の高度変化に対して、従来の方法を用い
ることは問題である。Therefore, it is problematic to use the conventional method for a long-term change in air pressure, that is, a change in altitude while traveling a long distance.
【０００８】本発明の目的は、上記従来技術に鑑み、列
車内の気圧を良好に制御することにある。[0008] An object of the present invention is to control the air pressure in a train well in view of the above prior art.
【０００９】[0009]
【課題を解決するための手段】そこで、本発明では、所
定区間の走行距離に比例した車内空気圧変化目標パター
ンを発生させ、車内空気圧がこのパターンに沿うように
車内換気装置を制御するようにした。Therefore, according to the present invention, an in-vehicle air pressure change target pattern proportional to the traveling distance in a predetermined section is generated, and the in-vehicle ventilation device is controlled so that the in-vehicle air pressure follows this pattern. .
【００１０】[0010]
【作用】図１に本発明による車内空気圧の目標パターン
と外気圧、および列車の高度変化の関係を示す。FIG. 1 shows the relationship between the target pattern of the in-vehicle air pressure, the outside air pressure, and the train altitude change according to the present invention.
【００１１】列車は駅Ａでドアを閉じた後、駅Ｃに向か
って発車する。途中の駅Ｂでは停車せずドア扱いはな
い。この経路の途中で図のような高低差があるものとす
ると、外気圧は図中の破線で示したように変化する。こ
れに対して車内気圧を図中、実線の様な目標パターンに
沿って制御する。After the door is closed at station A, the train leaves for station C. There is no door treatment at Station B on the way without stopping. Assuming that there is a height difference as shown in the figure in the middle of this route, the outside air pressure changes as shown by a broken line in the figure. On the other hand, the in-vehicle air pressure is controlled along a target pattern as indicated by a solid line in the figure.
【００１２】この制御により、あるドア扱い駅から、次
のドア扱い駅までの間で複数回の高度変化があっても、
車内気圧は直線的に変化して、次の駅に到着したときに
その駅における外気圧との差が小さくなる。With this control, even if the altitude changes a plurality of times from a station treating a door to a station treating the next door,
The air pressure inside the vehicle changes linearly, and when the vehicle arrives at the next station, the difference from the external air pressure at that station becomes smaller.
【００１３】[0013]
【実施例】図２に本発明に使用する車内気圧制御装置の
構成を示す。FIG. 2 shows the configuration of the vehicle air pressure control device used in the present invention.
【００１４】図２において１は車体、２は排気装置、３
は給気装置、４は制御装置、５は地点検知装置、５１は
駅Ａに設置した地上子、６は車内空気圧測定装置、２１
は小容量高圧排気ポンプ、２２は大容量低圧排気ポン
プ、２３と３３は締切弁、２４と３４はアクチュエー
タ、３１は小容量高圧給気ポンプ、３２は大容量低圧給
気ポンプである。In FIG. 2, 1 is a vehicle body, 2 is an exhaust device, 3
Is an air supply device, 4 is a control device, 5 is a point detection device, 51 is a ground member installed at station A, 6 is an in-car air pressure measurement device, 21
Is a small-capacity high-pressure exhaust pump, 22 is a large-capacity low-pressure exhaust pump, 23 and 33 are shut-off valves, 24 and 34 are actuators, 31 is a small-capacity high-pressure supply pump, and 32 is a large-capacity low-pressure supply pump.
【００１５】列車用の地点検知装置としては振子式列車
のカーブ進入位置判定に用いる、定点に設置した地上子
を検出する方式や、人工衛星からの信号を利用する方式
など様々なものがある。There are various types of train point detecting devices, such as a method for detecting a ground-mounted child installed at a fixed point and a method using a signal from an artificial satellite, which are used for judging a curve entry position of a pendulum train.
【００１６】本実施例では特定地点はそれぞれ地上子に
よって車上の地点検地装置５に示されるようになってい
る。In this embodiment, each specific point is indicated by the ground inspection device 5 on the vehicle by a ground child.
【００１７】列車の走行距離は、地点検知装置５内部の
ジャイロスコープと加速度計及び演算部によって求める
方式を採用している。走行距離を求める方式にはこれ以
外にも車輪回転数をカウントするものもあるが、上り勾
配区間走行中やブレーキ作動中に発生し易い、車輪のス
リップによる誤差が発生するという欠点がある。The travel distance of the train is determined using a gyroscope, an accelerometer, and an arithmetic unit in the point detection device 5. In addition to the method of calculating the traveling distance, there is a method of counting the number of rotations of a wheel. However, there is a disadvantage that an error due to wheel slip occurs easily during traveling on an uphill section or during braking operation.
【００１８】一方、本実施例の方式ではこのような問題
は生じない。On the other hand, such a problem does not occur in the system of the present embodiment.
【００１９】そこで、本実施例では、ジャイロスコープ
と加速度計及び演算部で構成された地点検知装置５を用
いることとした。Therefore, in the present embodiment, the point detection device 5 composed of a gyroscope, an accelerometer and an arithmetic unit is used.
【００２０】図３は本実施例による制御の状況を示した
ものである。制御装置４は地点検知装置５から、地上子
５１を出発点とする列車の現在位置のデータを常時得て
おり、また当該列車の停車駅に関するデータ、高度変化
の続く区間の始点と終点位置に関するデータを内蔵して
いる。FIG. 3 shows a control situation according to this embodiment. The control device 4 always obtains the data of the current position of the train starting from the ground child 51 from the point detection device 5, and also the data on the stop station of the train, the start and end positions of the section where the altitude changes continuously. Built-in data.
【００２１】制御は以下のように実行される。まず、平
坦区間を走行中は列車内外の気圧差はないので、制御装
置４はアクチュエータ２４，３４に指令して締切弁２
３，３３を開き、大容量低圧の給気および排気ポンプ２
２，３２を同一流量で運転して車内の汚染空気を換気し
ている。The control is executed as follows. First, since there is no pressure difference between the inside and outside of the train while traveling on the flat section, the control device 4 instructs the actuators 24 and 34 to transmit the cutoff valve 2.
Open 3, 33, large capacity low pressure air supply and exhaust pump 2
2, 32 are operated at the same flow rate to ventilate the contaminated air in the vehicle.
【００２２】列車が勾配区間に入ると、制御装置４は地
点検知装置５からの距離データに基づいて、車内気圧測
定装置６による現時点での車内気圧値を起点とする、車
内空気圧目標パターンを図３のように発生する。目標パ
ターンの最終値はＢ駅の高度における大気圧の値とす
る。制御装置４は車内空気圧測定装置６の出力とこの目
標パターンを比較して以下の制御を行なう。When the train enters the slope section, the control device 4 draws a target air pressure target pattern based on the distance data from the point detection device 5, starting from the current vehicle pressure value by the vehicle pressure measurement device 6. Occurs as in 3. The final value of the target pattern is the value of the atmospheric pressure at the altitude of the B station. The control device 4 compares the output of the in-vehicle air pressure measuring device 6 with the target pattern and performs the following control.
【００２３】１．目標パターンが車内空気圧より低く、
その差が所定の値以内の場合はアクチュエータ２４，３
４に指令して締切弁２３，３３を開き大容量低圧排気お
よび給気ポンプ２２，３２で換気を行なう。この際ポン
プ２２を３２より強めに動作させ、目標パターンに向か
って車内空気圧を下げる。1. If the target pattern is lower than the air pressure inside the car,
If the difference is within a predetermined value, the actuators 24, 3
4, the shut-off valves 23 and 33 are opened, and the large-capacity low-pressure exhaust and the air supply pumps 22 and 32 are used for ventilation. At this time, the pump 22 is operated to be stronger than 32, and the air pressure in the vehicle is reduced toward the target pattern.
【００２４】２．目標パターンが車内空気圧より高く、
その差が所定の値以内の場合は上記と同様に締切弁２
３，３３を開き、ポンプ３２を２２より強めに動作さ
せ、目標パターンに向かって車内空気圧を高める。2. If the target pattern is higher than the air pressure inside the car,
If the difference is within a predetermined value, the shut-off valve 2
3, 33 are opened, and the pump 32 is operated more strongly than 22 to increase the air pressure in the vehicle toward the target pattern.
【００２５】３．目標パターンが車内空気圧より低く、
その差が所定の値以上の場合は、アクチュエータ２４，
３４に指令して締切弁２３，３３を閉じ、高圧排気ポン
プ２１、高圧給気ポンプ３１を起動して、２１を３１よ
り強めに運転することにより、目標パターンに向かって
車内空気圧を下げる。3. If the target pattern is lower than the air pressure inside the car,
If the difference is equal to or greater than a predetermined value, the actuator 24,
34, the shut-off valves 23 and 33 are closed, the high-pressure exhaust pump 21 and the high-pressure air supply pump 31 are started, and the in-vehicle air pressure is reduced toward the target pattern by operating the 21 more strongly than the 31.
【００２６】４．目標パターンが車内空気圧より高く、
その差が所定の値以上の場合は、上記と同様に締切弁２
３，３３を閉じ、高圧排気ポンプ２１、高圧給気ポンプ
３１を起動して、２１を３１より強めに運転することに
より、目標パターンに向かって車内空気圧を高める。4. If the target pattern is higher than the air pressure inside the car,
If the difference is equal to or greater than a predetermined value, the shut-off valve 2
3 and 33 are closed, the high-pressure exhaust pump 21 and the high-pressure air supply pump 31 are activated, and the in-vehicle air pressure is increased toward the target pattern by operating the 21 more strongly than the 31.
【００２７】この制御は制御装置４が、列車が勾配区間
を通過したことを判定した時点で終了する。This control ends when the control device 4 determines that the train has passed the graded section.
【００２８】本実施例によれば、上り下りの勾配が連続
する区間を列車が通過しても、その途中の車内気圧変化
は滑らかとなり、乗客の耳に対する不快感を軽減するこ
とができる。According to the present embodiment, even if the train passes through a section where the up and down gradients are continuous, the change in the air pressure inside the car becomes smooth, and the discomfort to the passengers' ears can be reduced.
【００２９】更に本実施例では、高圧と低圧のポンプ群
の動作を組み合わせることにより、低圧側動作中は大量
換気で車内の空気を急速に清浄化し、高い圧力差を確保
する必要がある場合のみ少換気量の高圧ポンプを使用す
ることで、列車内外圧力差の制御と空気清浄度の維持を
両立させることが可能である。Further, in this embodiment, by combining the operation of the high pressure pump group and the low pressure pump group, during operation on the low pressure side, the air inside the vehicle is rapidly cleaned by mass ventilation, and only when it is necessary to secure a high pressure difference. By using a high-ventilation pump with a small ventilation volume, it is possible to control both the pressure difference between inside and outside the train and maintain the air cleanliness.
【００３０】なお、この制御の開始点、終了点の誤差は
１００ｍ程度あっても車内気圧の誤差は問題にならない
ため、地点検知装置５の距離測定精度は比較的低いもの
でよい。Note that even if the error between the start point and the end point of this control is about 100 m, the error in the air pressure inside the vehicle does not matter, so that the distance measurement accuracy of the point detection device 5 may be relatively low.
【００３１】次に本発明の第２の実施例について説明す
る。Next, a second embodiment of the present invention will be described.
【００３２】トンネル突入時の車体外部の圧力変動の大
きさは、トンネル入口の断面形状や、車体とトンネルの
空隙の大きさのような固定条件と、列車速度によって決
まる。このため、速度によっては上述の大容量低圧の換
気系統で対応できないような圧力変動がトンネル突入時
に発生する。The magnitude of the pressure fluctuation outside the car body when entering the tunnel is determined by the cross-sectional shape of the tunnel entrance, fixed conditions such as the size of the gap between the car body and the tunnel, and the train speed. For this reason, pressure fluctuations that cannot be handled by the above-described large-capacity low-pressure ventilation system occur at the time of tunnel entry depending on the speed.
【００３３】しかし、第１の実施例ではトンネル突入の
直前まで、列車内空気の換気系統は大容量低圧系が動作
している場合がある。However, in the first embodiment, a large-capacity low-pressure system may be operating as the ventilation system for air in the train until immediately before entering the tunnel.
【００３４】従って、第１の実施例の方式では列車内気
圧値の大きな変化を検知した後、自動的に小容量高圧の
換気系統への切り替えが生ずるが、ある程度の制御遅れ
は避けられないため、耳の不快感が短時間発生するとい
う欠点がある。Therefore, in the system of the first embodiment, after detecting a large change in the air pressure in the train, the system automatically switches to a small-capacity, high-pressure ventilation system, but a certain control delay is inevitable. However, there is a disadvantage that ear discomfort occurs for a short time.
【００３５】そこで、本実施例では、トンネル突入時の
外気圧の急激な変動が治まるまでの間は、必ず換気系統
を小容量高圧系統に切り替えるという方法を用いた。Therefore, in this embodiment, a method is used in which the ventilation system is always switched to the small-capacity high-pressure system until the sudden change in the outside air pressure at the time of entry into the tunnel subsides.
【００３６】図４に制御の状況を示す。本実施例ではト
ンネル入口付近に地上子５２を設置する。制御装置４は
地点検知装置５が地上子５２を検知した後、換気系統を
ただちに小容量高圧系統に切り替えて固定しておき、所
定時間経過後は第１の実施例のように大容量低圧系、ま
たは小容量高圧系のいずれかを目標パターンと車内気圧
との差に応じて適宜切り替える。FIG. 4 shows a control situation. In this embodiment, a ground child 52 is installed near the tunnel entrance. The control device 4 switches the ventilation system to the small-capacity high-pressure system immediately after the point detection device 5 detects the grounding element 52, and fixes the ventilation system after a lapse of a predetermined time, as in the first embodiment. , Or the small-capacity high-pressure system is appropriately switched according to the difference between the target pattern and the vehicle internal pressure.
【００３７】この制御によって、トンネル突入時の短時
間の耳の不快感も解消するという効果が得られる。With this control, an effect of eliminating ear discomfort for a short time when entering a tunnel can be obtained.
【００３８】なお、地点検知装置５の内部では、距離を
求める際に加速度を積分して速度を求める処理が必ず実
行される。この速度データを制御装置４で活用すれば、
トンネル突入速度が所定の値以下の場合には第１の実施
例の制御を行い、所定の値以上の場合には上記第２の実
施例の制御を行うように、速度に応じて制御方式を切り
替えることが可能となる。このようにすると、列車速度
が低い範囲では、換気能力の落ちる小容量高圧系を極力
使用せずに済むため、列車の換気効率を、より高くする
ことができる。In the inside of the point detecting device 5, processing for obtaining the speed by integrating the acceleration when obtaining the distance is always executed. If this speed data is utilized by the control device 4,
When the tunnel entry speed is equal to or lower than a predetermined value, the control method according to the first embodiment is performed. When the tunnel entry speed is equal to or higher than the predetermined value, the control according to the second embodiment is performed. It is possible to switch. In this way, in a range where the train speed is low, it is not necessary to use a small-capacity high-pressure system with a reduced ventilation capacity as much as possible, so that the ventilation efficiency of the train can be further increased.
【００３９】ところで、この制御に失敗した場合、列車
の速度が高速になるほど耳への不快感が増し、深刻な影
響を及ぼす恐れもあるため、列車内気圧の制御には高い
信頼性、耐故障性も重要な課題である。特に換気系が小
容量高圧系に切り替えられないまま、高速度でトンネル
に突入することが最も危険である。そこで、地点検知装
置５が地上子５２を検出し、小容量高圧系へ換気系を切
り替えた後、制御装置４は風量測定など既知の手段で小
容量高圧系の動作、大容量低圧系の遮断確認を行う。こ
こで万一、切り替え制御が成功していないことを検出し
た場合には、列車の主幹制御器に対して減速指令を発
し、トンネル突入前に列車速度が安全な範囲になるよう
にする。By the way, if this control fails, discomfort to the ears increases as the train speed increases, which may have serious effects. Therefore, the control of the air pressure in the train has high reliability and fault tolerance. Is also an important issue. In particular, it is most dangerous to enter a tunnel at a high speed without switching the ventilation system to a small-capacity high-pressure system. Therefore, after the point detecting device 5 detects the ground element 52 and switches the ventilation system to the small-capacity high-pressure system, the control device 4 operates the small-capacity high-pressure system by known means such as air flow measurement, and shuts off the large-capacity low-pressure system. Make a confirmation. Here, if it is detected that the switching control is not successful, a deceleration command is issued to the master controller of the train so that the train speed is in a safe range before entering the tunnel.
【００４０】同様の危険性は地上子５２の見落としによ
っても生ずる。The same danger is caused by oversight of the ground child 52.
【００４１】本実施例では定点からの距離をジャイロス
コープによって計測しているため、地上子５２より手前
の例えば地上子５１を起点とする現在位置の概略値を求
めることができる。In this embodiment, since the distance from the fixed point is measured by the gyroscope, it is possible to obtain an approximate value of the current position starting from the ground child 51, for example, before the ground child 52.
【００４２】そこで、制御装置４の内部に地上子の位置
情報を備え、この現在位置の概略値との照合を行う。こ
れにより地上子の見落とし、またはこの照合機能の故
障、地上子位置情報の故障などの際にも、上記のトンネ
ル突入前の減速制御を実行することが可能である。Therefore, the position information of the ground child is provided in the control device 4, and the comparison with the approximate value of the current position is performed. As a result, it is possible to execute the above-described deceleration control before entering the tunnel even when the grounding element is overlooked, or the collation function fails, or the grounding element position information fails.
【００４３】[0043]
【発明の効果】以上のように本発明によれば、特に高速
度で走行する列車において、上り下りの勾配が繰り返さ
れる区間において、大気圧差によって繰り返し生ずる、
耳の不快感を抑制することができる。As described above, according to the present invention, especially in a train running at a high speed, in a section where an up-and-down gradient is repeated, it repeatedly occurs due to an atmospheric pressure difference.
Ear discomfort can be suppressed.
【図１】本発明の概念の説明図。FIG. 1 is an explanatory diagram of the concept of the present invention.
【図２】本発明を実施する装置の構成図。FIG. 2 is a configuration diagram of an apparatus that implements the present invention.
【図３】本発明の第１の実施例の状況図。FIG. 3 is a situation diagram of the first embodiment of the present invention.
【図４】本発明の第２の実施例の状況図。FIG. 4 is a situation diagram of a second embodiment of the present invention.
１…車体、２…排気装置、３…給気装置、４…制御装
置、５…地点検知装置、５１，５２…地上子、６…車内
空気圧測定装置、２１…高圧排気ポンプ、２２…低圧大
容量排気ポンプ、２３，３３…締切弁、２４，３４…ア
クチュエータ、３１…高圧給気ポンプ、３２…大容量低
圧給気ポンプ。DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Exhaust device, 3 ... Air supply device, 4 ... Control device, 5 ... Point detection device, 51, 52 ... Ground child, 6 ... In-car air pressure measuring device, 21 ... High pressure exhaust pump, 22 ... Low pressure large Displacement pumps 23, 33 ... shut-off valves, 24, 34 ... actuators, 31 ... high pressure air supply pumps, 32 ... large capacity low pressure air supply pumps.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 岡松 茂俊 茨城県勝田市市毛1070番地 株式会社 日立製作所 水戸工場内 (72)発明者 澤野 英二 愛知県名古屋市中村区名駅一丁目１番４ 号 東海旅客鉄道株式会社内 (72)発明者 田中 秀幸 愛知県名古屋市中村区名駅一丁目１番４ 号 東海旅客鉄道株式会社内 (56)参考文献 特開 平４−90959（ＪＰ，Ａ) 特開 昭49−104306（ＪＰ，Ａ) 特開 平３−266762（ＪＰ，Ａ) 特公 昭47−37286（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) B61D 27/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigetoshi Okamatsu 1070 Ma, Katsuta-shi, Ibaraki Hitachi, Ltd. Mito Plant (72) Inventor Eiji Sawano 1-1-4 Meieki Station, Nakamura-ku, Nagoya-shi, Aichi Prefecture Inside Tokai Railway Company (72) Inventor Hideyuki Tanaka 1-4-1 Meieki Station, Nakamura-ku, Nagoya City, Aichi Prefecture Inside Tokai Railway Company (56) References JP-A-4-90959 (JP, A) JP-A-49-104306 (JP, A) JP-A-3-266762 (JP, A) JP-B-47-37286 (JP, B1) (58) Fields investigated (Int. Cl. 7 , DB name) B61D 27 / 00
Claims (1)
鉄道車両において、 ドア開閉駅間の行程内の位置に対応する 車内空気圧の目
標パターンを、出発するドア開閉駅における車内空気圧
から到着するドア開閉駅における車内空気圧へ直線的に
変化させるよう発生する手段と、地点検知装置と、 作成した前記目標パターンから、前記地点検知装置によ
り検知した位置に対応する車内空気圧を求め、その求め
た車内空気圧となるよう、列車内空気圧を 制御する手段
と、を備えたことを特徴とする鉄道車両。 1. A function of adjusting the air pressure in a train.
In rail vehicles, the eyes <br/> target pattern of the interior air pressure corresponding to the position of the stroke between the door opening and closing stations, car air pressure at starting door station
To the air pressure in the car at the door opening and closing station arriving from
Means for generating a change , a point detection device, and the generated target pattern.
The vehicle interior air pressure corresponding to the detected position
Means for controlling the air pressure in the train so that the air pressure in the train is reduced .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04120324A JP3125818B2 (en) | 1992-05-13 | 1992-05-13 | Railcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04120324A JP3125818B2 (en) | 1992-05-13 | 1992-05-13 | Railcar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05310123A JPH05310123A (en) | 1993-11-22 |
| JP3125818B2 true JP3125818B2 (en) | 2001-01-22 |
Family
ID=14783437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04120324A Expired - Fee Related JP3125818B2 (en) | 1992-05-13 | 1992-05-13 | Railcar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3125818B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014132144A (en) * | 2013-01-07 | 2014-07-17 | Daikure Co Ltd | Grating |
| KR101606548B1 (en) * | 2015-03-27 | 2016-03-25 | 김기로 | Cover for the gutter with a pitcher features |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4667116B2 (en) * | 2005-05-16 | 2011-04-06 | 川崎重工業株式会社 | Train smoke system |
| CN108790709B (en) * | 2018-06-08 | 2021-07-20 | 武汉理工大学 | Oxygen control device in cab of trackless transport vehicle in high-altitude area and control method |
-
1992
- 1992-05-13 JP JP04120324A patent/JP3125818B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014132144A (en) * | 2013-01-07 | 2014-07-17 | Daikure Co Ltd | Grating |
| KR101606548B1 (en) * | 2015-03-27 | 2016-03-25 | 김기로 | Cover for the gutter with a pitcher features |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05310123A (en) | 1993-11-22 |
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