JP5898923B2 - On-vehicle equipment - Google Patents

On-vehicle equipment Download PDF

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JP5898923B2
JP5898923B2 JP2011246526A JP2011246526A JP5898923B2 JP 5898923 B2 JP5898923 B2 JP 5898923B2 JP 2011246526 A JP2011246526 A JP 2011246526A JP 2011246526 A JP2011246526 A JP 2011246526A JP 5898923 B2 JP5898923 B2 JP 5898923B2
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wheel
vehicle
diameter
distance
wheel diameter
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慶一 齋藤
慶一 齋藤
健一 明慶
健一 明慶
浩臣 荒川
浩臣 荒川
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Nippon Signal Co Ltd
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本発明は、鉄道車両に搭載される車上装置に関する。   The present invention relates to an on-board device mounted on a railway vehicle.

周知のように、軌道上を走行する鉄道車両においては、走行距離を計測して自車の走行位置を検知する手法が知られている。走行距離を計測するには、車両に搭載される車上装置に、予め、車輪径から定まる車輪１回転当りの走行長を乗算係数として設定しておき、この乗算係数に車軸の回転量を乗算する。ところが、車輪は走行に応じて摩耗するため、車輪径が変化（縮小）し、計測した走行距離には常に誤差が含まれる。   As is well known, in a railway vehicle traveling on a track, a method is known in which a traveling distance is measured and a traveling position of the own vehicle is detected. To measure the travel distance, the travel length per one wheel rotation determined from the wheel diameter is set in advance on the on-board device mounted on the vehicle as a multiplication coefficient, and this multiplication coefficient is multiplied by the rotation amount of the axle. To do. However, since the wheel is worn as the vehicle travels, the wheel diameter changes (shrinks), and the measured travel distance always includes an error.

そこで、従来は、車庫を出庫していく車両について、定期検査などにより、手動によって車両径を測定し、その測定値を車上装置に車輪径の乗算係数として設定する等の手法を採用していた。   Therefore, conventionally, for vehicles leaving the garage, a method has been adopted in which the vehicle diameter is manually measured by periodic inspection or the like, and the measured value is set in the on-board device as a multiplication factor of the wheel diameter. It was.

しかし、上述した従来の手法は、人手による煩わしい車輪径測定作業が必要になるうえ、測定値を車上装置に手動で設定しなければならないという煩わしさも加わる。   However, the above-described conventional method requires annoying wheel diameter measurement work by hand, and also adds the troublesomeness of manually setting the measurement value to the on-board device.

特許文献１は、列車の車軸に取り付けたタコジェネレータ、速度発電機のパルス積算値を用い、線路上の連続した位置を追跡する技術を開示している。しかし、特許文献１は、走行距離算出システムを開示するものであって、車庫から出庫される車両について、その車輪径を測定するものではない。特許文献２には、車輪径の自動補正については記載があるが、振子制御式鉄道車両の走行時車輪径補正方法を開示するものであって、車庫から出庫される車両について、その車輪径を補正するものではない。   Patent Document 1 discloses a technique for tracking a continuous position on a track using a pulse integrated value of a tacho generator and a speed generator attached to a train axle. However, Patent Document 1 discloses a mileage calculation system, and does not measure the wheel diameter of a vehicle delivered from a garage. Patent Document 2 discloses automatic wheel diameter correction, but discloses a wheel diameter correction method for a pendulum control-type railway vehicle during travel. It is not a correction.

特開平５−３２２５９３号公報JP-A-5-322593 特開２００１−１０６０７０号公報JP 2001-106070 A

本発明の課題は、車庫から出庫する車両について、人手に頼ることなく、車輪径を測定する車上装置を提供することである。   The subject of this invention is providing the on-board apparatus which measures a wheel diameter, without relying on a human hand about the vehicle delivered from a garage.

本発明のもう一つの課題は、車輪径の変動分の累積を回避しながら、車輪径を測定し得る車上装置を提供することである。   Another object of the present invention is to provide an on-board device capable of measuring a wheel diameter while avoiding accumulation of fluctuations of the wheel diameter.

上述した課題を達成するため、本発明に係る車上装置は、特定された距離を走行した車両について、車輪の回転に応じたパルスを発生するパルス発生器から供給されるパルス数を計測し、前記パルス数に基づいて前記車輪の径を算出して補正し、当該補正値を次の出庫時に前記車両の走行速度の算出に用いる。 To achieve the above object, the onboard system according to the present invention, the vehicle traveling specific distance measures the number of pulses supplied from the pulse generator for generating a pulse corresponding to the rotation of the wheel , based on the number the pulse corrected by calculating the diameter of the wheel, using the correction value to calculate the traveling speed of the vehicle at the next goods issue.

上述した本発明に係る車上装置によれば、人手を介することなく、車庫から出庫してゆく車両について、その車輪径を算出することができる。当然のことであるが、この場合の車輪径とは、レールの踏み面と接触する車輪周面の直径または半径である。   According to the on-vehicle apparatus according to the present invention described above, the wheel diameter can be calculated for a vehicle leaving the garage without any manual intervention. As a matter of course, the wheel diameter in this case is the diameter or radius of the wheel peripheral surface that comes into contact with the tread surface of the rail.

出庫した後、入庫するまでは、このようにして算出された車輪径に基づいて、車両の走行速度、走行距離が算出される。勿論、入庫時の車輪径は、出庫時の車輪径と異なる場合が多いが、次の出庫時に再び車輪径測定がおこなわれ、補正された車輪径が得られるので、車輪径の変動分の累積がない。したがって、車両の走行速度、走行距離の算出の精度を維持することができる。   The vehicle travel speed and travel distance are calculated on the basis of the wheel diameters calculated in this manner until the vehicle enters after being delivered. Of course, the wheel diameter at the time of warehousing is often different from the wheel diameter at the time of warehousing, but the wheel diameter measurement is performed again at the next warehousing and a corrected wheel diameter is obtained. There is no. Therefore, it is possible to maintain the accuracy of calculation of the travel speed and travel distance of the vehicle.

車輪径は、具体的には、車両が、一定距離で設定された地上子間を走行したとき、前記パルス数に基づいて算出された測定距離と、前記地上子間の実際の距離とより算出することができる。   Specifically, the wheel diameter is calculated from the measured distance calculated based on the number of pulses and the actual distance between the ground elements when the vehicle travels between the ground elements set at a certain distance. can do.

車上装置は、計算結果から得られた車輪の径と、設定値とを比較して、規定値内にあれば、計算結果から得られた車輪の径を、設定値とすることができる。車上装置は、このようにして設定された設定値を用いて、計算結果から得られた車輪の径と、設定値とを比較して、比較結果により警告を発することができる。これにより、車輪の交換時期を知ることができる。   The on-board device compares the wheel diameter obtained from the calculation result with the set value, and if it is within the specified value, the wheel diameter obtained from the calculation result can be set as the set value. The on-board device can use the set value set in this manner to compare the wheel diameter obtained from the calculation result with the set value, and issue a warning based on the comparison result. Thereby, it is possible to know the replacement time of the wheel.

以上述べたように、本発明によれば、次のような効果を得ることができる。
（ａ）車庫から出庫する車両について、人手に頼ることなく、車輪径を測定する車上装置を提供することができる。
（ｂ）車輪径の変動分の累積を回避しながら、車輪径を測定し得る車上装置を提供することができる。 As described above, according to the present invention, the following effects can be obtained.
(A) It is possible to provide an on-board device that measures the wheel diameter without relying on a manpower for a vehicle leaving the garage.
(B) It is possible to provide an on-board device that can measure the wheel diameter while avoiding accumulation of fluctuations in the wheel diameter.

本発明に係る車上装置を有する車両と、その車輪径測定を説明する図である。It is a figure explaining the vehicle which has a vehicle-mounted apparatus which concerns on this invention, and its wheel diameter measurement.

図１を参照すると、車両３は、レール５の上にあって、車庫１に入庫している。車両３には、車上装置３１及び表示装置３２が搭載されており、車上装置３１には、車上アンテナ３３及びパルス発生器３４等が接続されている。車上アンテナ３３は、車庫１の外部において、レール５に沿って間隔Ｌをおいて配置された地上子７１，７２と電磁結合する。   Referring to FIG. 1, the vehicle 3 is on the rail 5 and enters the garage 1. An on-vehicle device 31 and a display device 32 are mounted on the vehicle 3, and an on-vehicle antenna 33, a pulse generator 34, and the like are connected to the on-vehicle device 31. The on-board antenna 33 is electromagnetically coupled to ground elements 71 and 72 arranged at intervals L along the rail 5 outside the garage 1.

パルス発生器３４は、車輪３５の回転に応じたパルスを発生する。このようなパルス発生器３４は、周知の速度発電機によって構成することができる。車輪３５の回転は、車輪３５そのものの回転として検出することができるし、車輪３５の車軸の回転として検出することもできる。   The pulse generator 34 generates a pulse corresponding to the rotation of the wheel 35. Such a pulse generator 34 can be constituted by a known speed generator. The rotation of the wheel 35 can be detected as the rotation of the wheel 35 itself, or can be detected as the rotation of the axle of the wheel 35.

車両３が、レール５上を、車庫１から矢印Ｆ１で示す方向に出庫してゆき、特定された距離Lを走行したとき、車両３に備えられた車上装置３１は、車輪３５の回転に応じたパルスを発生するパルス発生器３４から供給されるパルス数を計測し、計測されたパルス数に基づいて、車輪３５の径を算出する。この実施の形態では、特定された距離は、地上子７１−７２の間に設定された距離Ｌである。この距離Lは、例えば１５０ｍというように、予め定められている。車両３が、地上子７１−７２の間に設定された距離Ｌを走行したことは、地上子７１，７２と車上アンテナ３３との間の電気的・磁気的な結合によって生じる信号を、車上装置３１によって処理することによって判定される。次に、車輪径算出について、具体的に説明する。   When the vehicle 3 leaves the rail 5 in the direction indicated by the arrow F <b> 1 from the garage 1 and travels the specified distance L, the onboard device 31 provided in the vehicle 3 causes the wheels 35 to rotate. The number of pulses supplied from the pulse generator 34 that generates the corresponding pulse is measured, and the diameter of the wheel 35 is calculated based on the measured number of pulses. In this embodiment, the specified distance is a distance L set between the ground elements 71-72. This distance L is predetermined, for example, 150 m. The fact that the vehicle 3 has traveled the distance L set between the ground elements 71-72 indicates that the signal generated by the electrical and magnetic coupling between the ground elements 71, 72 and the on-board antenna 33 is It is determined by processing by the upper device 31. Next, the wheel diameter calculation will be specifically described.

パルス発生器３４の出力パルス数：ｎ/１回転
算出される車輪径：Ｄ(m)
地上子７１−７２間の間隔：Ｌ（ｍ）
Ｌ（ｍ）を走行したとき車上装置３１が認識した累積パルス数：Ｎ（回）
とすると、
Ｌ＝πＤ・（Ｎ/ｎ）
となる。この式を変形すると、車輪３５の外径Ｄ（ｍ）は、
Ｄ＝（ｎ・Ｌ）/（π・Ｎ）
として求まる。なお、車輪径測定のため、地上子７１−７２の間を、車両３が走行するとき、その走行速度は、空転や滑走が生じないような値に設定される。 Number of output pulses of pulse generator 34: n / 1 rotation Calculated wheel diameter: D (m)
Spacing between ground pieces 71-72: L (m)
Cumulative number of pulses recognized by onboard device 31 when traveling on L (m): N (times)
Then,
L = πD · (N / n)
It becomes. When this equation is transformed, the outer diameter D (m) of the wheel 35 is
D = (n · L) / (π · N)
It is obtained as In order to measure the wheel diameter, when the vehicle 3 travels between the ground pieces 71-72, the traveling speed is set to a value that does not cause idling or sliding.

上述した本発明に係る車上装置３１によれば、人手を介することなく、車庫１から出庫してゆく車両３について、その車輪３５の径を算出することができる。出庫した後、入庫するまでは、このようにして算出された車輪径に基づいて、車両３の走行速度、走行距離が算出される。勿論、入庫時の車輪径は、出庫時の車輪径と異なる場合が多いが、次の出庫時に再び車輪径測定がおこなわれ、補正された車輪径が得られるので、営業日を跨いだ車輪径の変動分の累積がない。したがって、車両３の走行速度、走行距離の算出の精度を維持することができる。   According to the on-vehicle device 31 according to the present invention described above, the diameter of the wheel 35 can be calculated for the vehicle 3 leaving the garage 1 without any manual intervention. From the time of delivery to the time of entry, the travel speed and travel distance of the vehicle 3 are calculated based on the wheel diameters thus calculated. Of course, the wheel diameter at the time of entry is often different from the wheel diameter at the time of delivery, but the wheel diameter is measured again at the next delivery and the corrected wheel diameter is obtained. There is no accumulation of fluctuations. Therefore, it is possible to maintain the calculation accuracy of the traveling speed and traveling distance of the vehicle 3.

車上装置３１は、計算結果から得られた車輪３５の径と、設定値とを比較して、規定値内にあれば、計算結果から得られた車輪３５の径を、設定値とすることができる。車上装置３１は、このようにして設定された設定値を用いて、計算結果から得られた車輪３５の径と、設定値とを比較して、比較結果により、運転台等の表示装置３２に警告を発することができる。これにより、車輪３５の交換時期を知ることができる。   The on-board device 31 compares the diameter of the wheel 35 obtained from the calculation result with the set value, and if it is within the specified value, the diameter of the wheel 35 obtained from the calculation result is set as the set value. Can do. The on-board device 31 uses the set value set in this way to compare the diameter of the wheel 35 obtained from the calculation result with the set value, and based on the comparison result, the display device 32 such as a driver's cab. A warning can be issued. Thereby, the replacement time of the wheel 35 can be known.

以上、好ましい実施例を参照して本発明の内容を具体的に説明したが、本発明の基本的技術思想及び教示に基づいて、当業者であれば、種々の変形態様を採り得ることは自明である。   Although the contents of the present invention have been specifically described above with reference to the preferred embodiments, it is obvious that those skilled in the art can take various modifications based on the basic technical idea and teachings of the present invention. It is.

１ 車庫
３ 車両
３１ 車上装置
３２ 表示装置
３３ 車上アンテナ
３４ パルス発生器
３５ 車輪
1 Garage 3 Vehicle 31 On-Vehicle Device 32 Display Device 33 On-Vehicle Antenna 34 Pulse Generator 35 Wheel

Claims (4)

特定された距離を走行した車両について、車輪の回転に応じたパルスを発生するパルス発生器から供給されるパルス数を計測し、前記パルス数に基づいて前記車輪の径を算出して補正し、当該補正値を次の出庫時に前記車両の走行速度の算出に用いる、車上装置。 The vehicle traveling specific distance, the number of pulses supplied from the pulse generator for generating a pulse in response to the rotation of the wheel is measured, corrected by calculating the diameter of the wheel based on the number of the pulses The on-board device that uses the correction value to calculate the traveling speed of the vehicle at the next delivery . 請求項１に記載された車上装置であって、一定距離で設定された地上子間を走行したとき、前記パルス数に基づいて算出された測定距離と、前記地上子間の実際の距離とより、前記車輪の径を算出する、車上装置。   The on-vehicle device according to claim 1, wherein when traveling between ground elements set at a fixed distance, a measurement distance calculated based on the number of pulses, and an actual distance between the ground elements, An on-vehicle device that calculates the diameter of the wheel. 請求項１又は２に記載された車上装置であって、計算結果から得られた車輪の径と、設定値とを比較して、比較結果により警告を発する、車上装置。   The on-board device according to claim 1 or 2, wherein a wheel diameter obtained from a calculation result is compared with a set value, and a warning is issued based on the comparison result. 請求項１又は２に記載された車上装置であって、計算結果から得られた車輪の径と、設定値とを比較して、規定値内にあれば、計算結果から得られた車輪の径を、設定値とする、車上装置。   The on-vehicle device according to claim 1 or 2, wherein the wheel diameter obtained from the calculation result is compared with a set value, and if it is within a specified value, the wheel obtained from the calculation result is obtained. An on-board device with a diameter as a set value.
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