JPH0789682B2 - Position detector - Google Patents
Position detectorInfo
- Publication number
- JPH0789682B2 JPH0789682B2 JP61186817A JP18681786A JPH0789682B2 JP H0789682 B2 JPH0789682 B2 JP H0789682B2 JP 61186817 A JP61186817 A JP 61186817A JP 18681786 A JP18681786 A JP 18681786A JP H0789682 B2 JPH0789682 B2 JP H0789682B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- frequency signal
- vehicle
- high frequency
- propulsion
- 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.)
- Expired - Lifetime
Links
Landscapes
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は位置検出装置に係り、特にリニアモータカーに
おける推進巻線と走行車両との相対位置を検出する位置
検出装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a position detecting device, and more particularly to a position detecting device for detecting a relative position between a propulsion winding and a traveling vehicle in a linear motor car.
従来のこの種の位置検出装置は、特開昭56−189170号，
特開昭56−182389号に記載されている如く、軌道上に案
内および推進をさせる推進巻線を、車両上に界磁極を、
それぞれ設け、前記推進巻線に電力変換装置から順次推
進電流を流すことにより移動磁界を発生させて推進力を
得るリニアモータカーにおいて、電力変換装置から推進
巻線に与える推進電流に高周波信号を重畳し、この高周
波信号を走行車両で検出するように構成されているもの
であつた。A conventional position detecting device of this type is disclosed in JP-A-56-189170,
As described in JP-A-56-182389, a propulsion winding for guiding and propulsing on a track, a field pole on a vehicle,
In a linear motor car that is provided in each of the above-mentioned propulsion windings, a moving magnetic field is sequentially generated from a power converter to generate a moving magnetic field to obtain propulsive force. The high-frequency signal is detected by the traveling vehicle.
〔発明が解決しようとする問題点〕 しかしながら、上述の位置検出装置の場合は、走行車両
の存在している推進巻線に通電するためのしや断器が投
入されていなければ、推進巻線に上記高周波信号が流れ
ないため、位置検出ができないという問題点があつた。[Problems to be Solved by the Invention] However, in the case of the above-described position detection device, the propulsion winding is provided unless a conductor or a breaker for energizing the propulsion winding in which the traveling vehicle is present is turned on. In addition, since the high frequency signal does not flow, the position cannot be detected.
本発明の目的は、推進巻線に通電するためのしや断器の
投入状況にかかわらず走行車両と推進巻線との相対位置
を検出できる位置検出装置を提供することにある。It is an object of the present invention to provide a position detecting device capable of detecting the relative position between a traveling vehicle and a propulsion winding regardless of the state of turning on the propulsion winding or a breaker.
上記目的を達成するため本発明の一態様によれば、 軌道の両側面に分かれて配置され、対をなして電気的に
接続された第１および第２の巻線と、車両に設けられた
界磁極とを有し、前記巻線に順次電流を流すことで磁界
を発生させて車両を駆動するリニアモーターカーにおけ
る位置検出装置において、 前記車両の一側面の前記第１の巻線と対向する位置に設
けられる送信コイルと、 前記車両の他の側面の前記第２の巻線と対向する位置に
設けられる受信コイルと、 前記送信コイルに高周波信号を供給する手段と、 前記受信コイルに誘起される高周波信号を取り込んで位
置検出を行なう手段と を備えることを特徴とする位置検出装置が提供される。According to an aspect of the present invention to achieve the above object, first and second windings, which are separately arranged on both sides of a track and electrically connected in pairs, are provided on a vehicle. A position detecting device in a linear motor car that has a field pole and drives a vehicle by generating a magnetic field by sequentially flowing an electric current through the winding, and faces the first winding on one side surface of the vehicle. A transmitting coil provided at a position, a receiving coil provided at a position facing the second winding on the other side surface of the vehicle, a means for supplying a high-frequency signal to the transmitting coil, and induced in the receiving coil. And a means for detecting a position by receiving a high frequency signal.
第１の巻線と第２の巻線は、並列に接続されている。そ
して、この第１および第２の巻線の対が、軌道に沿っ
て、順次配置される。各対は、一定間隔で切れるように
配置されることができる。The first winding and the second winding are connected in parallel. Then, the pair of the first and second windings are sequentially arranged along the track. Each pair can be arranged to be cut at regular intervals.
高周波信号を供給する手段から送信コイルに高周波信号
を流す。これにより、この送信コイルに対して対向する
位置にある、いずれかの第１の巻線に、高周波が誘起さ
れる。この時、この第１の巻線と対になって接続されて
いる第２の巻線にも、この高周波電流が流れる。この第
２の巻線の高周波信号により、これと対向する位置にあ
れば、受信コイルに高周波信号が誘起される。位置検出
を行なう手段は、この受信コイルに誘起される高周波信
号を取り込んで、位置の検出を行なう。A high frequency signal is supplied to the transmission coil from the means for supplying the high frequency signal. As a result, a high frequency wave is induced in any one of the first windings located at the position facing the transmission coil. At this time, this high-frequency current also flows through the second winding that is paired with and connected to the first winding. The high frequency signal of the second winding induces a high frequency signal in the receiving coil if the second winding is located at a position facing the high frequency signal. The position detecting means takes in the high frequency signal induced in the receiving coil and detects the position.
ところで、巻線は、一定間隔で切れているので、受信コ
イルに誘起される高周波信号は、とぎれを生じることが
ある。この位置の検出は、このとぎれを検出して、位置
検出を行なう。By the way, since the winding is cut at regular intervals, the high-frequency signal induced in the receiving coil may be discontinuous. The position is detected by detecting this break.
なお、送信コイルと受信コイルとは、車両の異なる側面
にあるので、受信コイルは、送信コイルからの高周波信
号に干渉されることなく、検出が行なえる。Since the transmitting coil and the receiving coil are located on different sides of the vehicle, the receiving coil can perform detection without being interfered by the high frequency signal from the transmitting coil.
また、本発明では、送信コイルと受信コイルは、車両の
横揺れに伴って同じ方向に変位する。そのため、それぞ
れ対向する巻線との間隔が、一方が大きくなると、他方
が小さくなる関係にある。従って、例えば、送信コイル
が対向する巻線に近づくときは、受信コイルが対向する
巻線から遠ざかるので、一方の信号の強さが弱くなると
き、他方の信号の強さが強くなるように働く。その結
果、信号の検出レベルがほぼ一定に保持される。Further, in the present invention, the transmitting coil and the receiving coil are displaced in the same direction as the vehicle rolls. Therefore, the spacing between the windings facing each other is such that when one is larger, the other is smaller. Therefore, for example, when the transmitter coil approaches the opposite winding, the receiver coil moves away from the opposite winding, so that when one signal becomes weaker, the other signal becomes stronger. . As a result, the detection level of the signal is kept substantially constant.
以下、本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明に係る実施例の車両および軌道の含む断
面図である。走行車両１には、界磁極の超電導磁石２が
車体の左右に取付けられており、軌道側はこれに対向し
た位置に推進巻線3Aおよび3Bが取付けられている。推進
巻線3Aおよび3Bは進行方向に対し全く同一位置に取付け
られ、並列に接続されている。FIG. 1 is a sectional view of a vehicle and a track of an embodiment according to the present invention. On the traveling vehicle 1, superconducting magnets 2 having field poles are mounted on the left and right sides of the vehicle body, and propulsion windings 3A and 3B are mounted on the track side at positions facing the superconducting magnets 2. The propulsion windings 3A and 3B are attached at exactly the same position in the traveling direction and are connected in parallel.
推進巻線の片側3Aに対向した位置に空心の送信コイル４
を設け、高周波信号電流を流し、推進巻線3Aに誘導させ
る。推進巻線3Aと3Bとは並列接続されているので同じ高
周波信号電流が推進巻線3Bにも流れる。この高周波信号
電流を走行車両１に設けた受信コイル５で検出すること
により推進巻線の１つの位置を検出することができる。Air-core transmitter coil 4 at a position facing one side 3A of the propulsion winding
Is provided, and a high-frequency signal current is made to flow to induce it in the propulsion winding 3A. Since the propulsion windings 3A and 3B are connected in parallel, the same high-frequency signal current also flows in the propulsion winding 3B. By detecting this high-frequency signal current with the receiving coil 5 provided in the traveling vehicle 1, one position of the propulsion winding can be detected.
第２図は本発明に係る位置検出装置の実施例を示す回路
図である。この図においても第１図と同一構成要素には
同一の符号を付して説明を省略する。FIG. 2 is a circuit diagram showing an embodiment of the position detecting device according to the present invention. Also in this figure, the same components as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.
第２図において、６は発振器、７は増幅器、８はフイル
タ、９は位置信号検出部である。In FIG. 2, 6 is an oscillator, 7 is an amplifier, 8 is a filter, and 9 is a position signal detector.
車両１に搭載した発振器６から例えば5KHz以上の高周波
信号を送信コイル４に供給する。すると、この送信コイ
ル４に流入する高周波信号により推進巻線3Aに高周波信
号が誘起される。推進巻線3Aおよび3Bは並列接続されて
いるから、推進巻線3Bにもその高周波信号が誘起され
る。推進巻線3Bの高周波信号により受信コイル５に高周
波信号が誘起されるので、そのコイル５からの高周波信
号を増幅器７が増幅してフイルタ８に供給する。An oscillator 6 mounted on the vehicle 1 supplies a high frequency signal of, for example, 5 KHz or more to the transmission coil 4. Then, the high frequency signal flowing into the transmission coil 4 induces the high frequency signal in the propulsion winding 3A. Since the propulsion windings 3A and 3B are connected in parallel, the high frequency signal is also induced in the propulsion winding 3B. Since a high frequency signal is induced in the receiving coil 5 by the high frequency signal of the propulsion winding 3B, the high frequency signal from the coil 5 is amplified by the amplifier 7 and supplied to the filter 8.
受信コイル５に誘起され、増幅器７で増幅された高周波
信号の中から送信周波数のみをフイルタ８により検出
し、各コイル３毎の位置信号を位置検出部９で作り出
す。Only the transmission frequency is detected by the filter 8 from the high frequency signal induced in the receiving coil 5 and amplified by the amplifier 7, and the position detecting section 9 produces the position signal for each coil 3.
各推進巻線３の間には必ず間隔が設けられているので、
各推進巻線３毎の区切りが明確になるが、送信又は受信
コイル４又は５を複数個設け組合せて位置検出すること
も可能である。また送受信コイル4,5を複数個設けるこ
とにより、多相信号等を作ることも可能である。Since there is always a space between each propulsion winding 3,
Although the division for each propulsion winding 3 is clear, it is also possible to detect the position by providing a plurality of transmitting or receiving coils 4 or 5 and combining them. It is also possible to create a multi-phase signal or the like by providing a plurality of transmitting / receiving coils 4 and 5.
左右の推進巻線3A,3Bの断線等の場合には、受信信号が
なくなるため、推進巻線３の断線等の故障検出にも応用
できることになる。In the case of the breakage of the left and right propulsion windings 3A and 3B, there is no received signal, so that the invention can be applied to the detection of a failure such as the breakage of the propulsion winding 3.
以上述べたように本発明によれば、左右に設けた推進巻
線を利用して位置検出できるようにしたので、地上側に
別途設備を設ける必要がなく、かつ推進電流供給用しや
断器の開閉状況にかかわらず位置検出ができるという効
果がある。As described above, according to the present invention, it is possible to detect the position by using the propulsion windings provided on the left and right, so there is no need to install additional equipment on the ground side, and the propulsion current supply and disconnection There is an effect that the position can be detected regardless of the open / closed state of the.
第１図は本発明の実施例を示す断面図、第２図は本発明
の実施例を示す回路図である。 １……車両、２……超電導磁石、3A,3B……推進巻線、
４……送信コイル、５……受信コイル、６……発振器、
７……増幅器、９……位置検出器。FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. 1 ... Vehicle, 2 ... Superconducting magnet, 3A, 3B ... Propulsion winding,
4 ... Transmission coil, 5 ... Reception coil, 6 ... Oscillator,
7 ... Amplifier, 9 ... Position detector.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小池 茂喜 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 伊藤 昌之 東京都千代田区大手町２丁目６番２号 日 立電子エンジニアリング株式会社内 (56)参考文献 特開 昭58−192404（ＪＰ，Ａ) 特開 昭61−39803（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigeki Koike 1070 Imo, Katsuta-shi, Ibaraki Hitachi Ltd. Mito Plant (72) Inventor Masayuki Ito 2-6-2 Otemachi, Chiyoda-ku, Tokyo Electronic Engineering Co., Ltd. (56) Reference JP-A-58-192404 (JP, A) JP-A-61-39803 (JP, A)
Claims (1)
して電気的に接続された第１および第２の巻線と、車両
に設けられた界磁極とを有し、前記巻線に順次電流を流
すことで磁界を発生させて車両を駆動するリニアモータ
ーカーにおける位置検出装置において、 前記車両の一側面の前記第１の巻線と対向する位置に設
けられる送信コイルと、 前記車両の他の側面の前記第２の巻線と対向する位置に
設けられる受信コイルと、 前記送信コイルに高周波信号を供給する手段と、 前記受信コイルに誘起される高周波信号を取り込んで位
置検出を行なう手段と を備えることを特徴とする位置検出装置。1. A winding comprising: first and second windings, which are separately arranged on both sides of a track and electrically connected in pairs, and field poles provided on a vehicle. A position detecting device in a linear motor car that drives a vehicle by generating a magnetic field by sequentially passing a current through the transmitter coil provided in a position facing the first winding on one side surface of the vehicle; And a means for supplying a high frequency signal to the transmitting coil, and a position detection by taking in the high frequency signal induced in the receiving coil. And a position detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61186817A JPH0789682B2 (en) | 1986-08-11 | 1986-08-11 | Position detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61186817A JPH0789682B2 (en) | 1986-08-11 | 1986-08-11 | Position detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6343859A JPS6343859A (en) | 1988-02-24 |
| JPH0789682B2 true JPH0789682B2 (en) | 1995-09-27 |
Family
ID=16195114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61186817A Expired - Lifetime JPH0789682B2 (en) | 1986-08-11 | 1986-08-11 | Position detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0789682B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2611837B2 (en) * | 1989-06-29 | 1997-05-21 | 財団法人鉄道総合技術研究所 | Monorail vehicle traveling device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192404A (en) * | 1982-05-07 | 1983-11-09 | Japanese National Railways<Jnr> | Vehicle running system by linear motor |
| JPH0789681B2 (en) * | 1984-07-31 | 1995-09-27 | 財団法人鉄道総合技術研究所 | Levitation coil displacement detector |
-
1986
- 1986-08-11 JP JP61186817A patent/JPH0789682B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6343859A (en) | 1988-02-24 |
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