JPS6181842A - Vehicle optical transmission line - Google Patents
Vehicle optical transmission lineInfo
- Publication number
- JPS6181842A JPS6181842A JP59195460A JP19546084A JPS6181842A JP S6181842 A JPS6181842 A JP S6181842A JP 59195460 A JP59195460 A JP 59195460A JP 19546084 A JP19546084 A JP 19546084A JP S6181842 A JPS6181842 A JP S6181842A
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical transmission
- steering wheel
- light transmitting
- transmission line
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Steering Controls (AREA)
- Optical Communication System (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、車両に搭載される光多重伝送システムにおけ
る固定パッドに備えたステアリングスイッチ装置と車体
固定側との間の光伝送路において、信号減衰を最小限と
した車両の光伝送路に関する。Detailed Description of the Invention (Industrial Application Field) The present invention provides an optical transmission system for transmitting signals in an optical transmission path between a steering switch device provided on a fixed pad and a fixed side of the vehicle body in an optical multiplex transmission system mounted on a vehicle. This invention relates to a vehicle optical transmission line with minimum attenuation.
（従来の技術）
自動車において、最近では種々の電気的負荷を作動制御
するための信号を送給する装置として、電気の代わりに
光を利用した信号伝送システムが開発されている。(Prior Art) Recently, in automobiles, signal transmission systems that utilize light instead of electricity have been developed as devices for transmitting signals to control the operation of various electrical loads.
ところで上記光信号伝送システムにおいて、ステアリン
グホイールの中央部に常に静止状態に設置された固定式
パッド内に光スィッチ等から成るステアリングスイッチ
装置を設け、−刃車体固定側に発光部、光電変換部、制
御コンピュータ等を配し、両者の間を光伝送路で接続し
たものがある。斯かる場合にはパッド側も車体側も非可
動部であるため、互いに対向する箇所にて送受光部を配
設することができ、このような送光部と受光部の組は一
般に複数組設けられる。By the way, in the above-mentioned optical signal transmission system, a steering switch device consisting of an optical switch etc. is provided in a fixed pad that is always installed in a stationary state in the center of the steering wheel, and - a light emitting part, a photoelectric conversion part, Some devices are equipped with a control computer, etc., and are connected through an optical transmission line. In such a case, since both the pad side and the vehicle body side are non-movable parts, the light transmitting and receiving parts can be arranged at locations facing each other, and there are generally multiple sets of such light transmitting parts and light receiving parts. provided.
しかし上記構成による光伝送ではパッドと車体側との隙
間をステアリングホイールのスポーク部がよぎることに
なる。そこで送光部と受光部との間で光信号の伝達に支
障が生じないようにするためち該スポーク部の所要の箇
所に導光体を設けるようにした。However, in the optical transmission with the above configuration, the spokes of the steering wheel cross the gap between the pad and the vehicle body. Therefore, in order to prevent any hindrance to the transmission of optical signals between the light transmitting section and the light receiving section, light guides are provided at required locations on the spoke sections.
（発明が解決しようとする問題点）
前記の如く固定パッド側と車体側の間に°て送受光部で
光の送受を行い且つこの送受光部の各間隙をステアリン
グホイールのスポーク部が遮断しないようにスポーク部
に導光体を設けるようにした構成において、ループ状の
導光回路をなす少なくとも一対の送受光部に同時に上記
スポーク部が通過すると、当該導光体により光信号の減
衰量が増大し安定した信号伝送を行えないという不具合
を有する。(Problems to be Solved by the Invention) As described above, light is transmitted and received by the light transmitting/receiving section between the fixed pad side and the vehicle body side, and the spokes of the steering wheel do not block the gaps between the light transmitting/receiving sections. In a configuration in which a light guide is provided in a spoke part, when the spoke part simultaneously passes through at least one pair of light transmitting/receiving parts forming a loop-shaped light guide circuit, the amount of attenuation of the optical signal is reduced by the light guide. This has the disadvantage that stable signal transmission cannot be performed.
（問題点を解決するための手段）
本発明は、ステアリングスイッチ装置を備えた固定式パ
ッド側と、制Ｗ′＃装置等を備えた車体固定側との間に
設けた少なくとも一対の送受光部をよ −ぎるステアリ
ングホイールのスポーク部に導光体を設けると共に、各
スポーク部の導光体の間隔と上記送受光部の間隔を異な
らせるように構成したものである。(Means for Solving the Problems) The present invention provides at least one pair of light transmitting/receiving sections provided between a fixed pad side provided with a steering switch device and a fixed side of the vehicle body provided with a control W'# device, etc. A light guide is provided at the spoke portion of the steering wheel that crosses the steering wheel, and the distance between the light guides of each spoke portion is made different from the distance between the light transmitting and receiving portions.
（実施例）
以下に本発明の好適一実施例を添付図面に基づいて説明
する。(Embodiment) A preferred embodiment of the present invention will be described below based on the accompanying drawings.
第１図は本発明に係る光伝送路、ステアリングスイッチ
装置の構成を示す概略図、第２図は光伝送路の配置状態
を示す平面図である。FIG. 1 is a schematic diagram showing the configuration of an optical transmission line and a steering switch device according to the present invention, and FIG. 2 is a plan view showing the arrangement of the optical transmission line.
第１図において、０）は車両のステアリングホイールで
あり、ステアリングホイール（１）は、ステアリングシ
ャｙ ト（２）の上部に固設されるボス部（１ａ）と、
虜辺に形成されるリング状の把持部（１ｂ）と、ボス部
（ｌａ）と把持部（ｌｂ）とをつなぐ複数のスポーク部
（ＩＣ）とから形成される。スポーク部（ＩＣ）の数は
、未実施例では第２図で示す如く説明の便宜上２木とし
ている。In FIG. 1, 0) is the steering wheel of the vehicle, and the steering wheel (1) has a boss part (1a) fixedly installed on the upper part of the steering shaft (2).
It is formed from a ring-shaped gripping part (1b) formed on the captive side, and a plurality of spoke parts (IC) connecting the boss part (la) and the gripping part (lb). The number of spoke portions (ICs) is two trees for convenience of explanation as shown in FIG. 2 in an unembodied example.
ステアリングホイール（１）の上側に配設される（３）
は、実際上ステアリングホイール（１）の運転者側に設
けられ中央に位置するパッドである。このパッド（３）
は固定式に設けられる。すなわち遊星歯車機構等を利用
してステアリングホイール（１）が操作によって回転し
ても、パッド（３）自体は静ＩＥ状態に保持される。そ
してパッド（３）の中には、光信号を案内する導光路（
４）と導光路（０の途中に介設され耳つ導光路（０で案
内されてきた光を透光又は遮断等することによって信号
を発生する光スイツチ装置（５）とが配設される。(3) located above the steering wheel (1)
is actually a centrally located pad on the driver's side of the steering wheel (1). This pad (3)
is installed in a fixed manner. That is, even if the steering wheel (1) is rotated by operation using a planetary gear mechanism or the like, the pad (3) itself is maintained in a static IE state. Inside the pad (3) there is a light guide path (
4) and an optical switch device (5) that is interposed in the middle of the light guide path (0) and generates a signal by transmitting or blocking the light guided by the light guide path (0). .
上記導光路（０の各端面はパッド（３）の裏面、すなわ
ちステアリングホイール（１）の側の面に臨む如く配設
され、図中（４ａ）は入党面、（４ｂ）は出光面をなし
ている。Each end surface of the light guide path (0) is arranged so as to face the back surface of the pad (3), that is, the surface on the side of the steering wheel (1), in the figure (4a) is the entrance surface and (4b) is the light exit surface. ing.
一方（８）は車体固定側の端部を示し１例えばステアリ
ングコラムの上端である。車体固定側の端部（６）には
例えばケース等を設け、その内部には発光ダイオードの
如き発光素子（７）及びフォトダイオードの如き受光素
子（８）を所定の位置に配設する。これらの発光素子（
７）、受光素子（８）の配設箇所は、軸線（ａ）からの
距離が、それぞれ発光素子（７）と前記入党面（４ａ）
とが半径方向について−同一位置となり、受光素子（８
）と前記出光面（４ｂ）とが半径方向について同一位置
となるように設定される。上記において発光素子（７）
に対しては電源部（不図示）より所定の信号を発生させ
るための駆動電流が供給される。Ｗ動電流はパルス的に
生じ１発光素子（７）は点滅を繰り返す、この光は発光
素子（７）の出射面（７ａ）から入光面（４ａ）へ送ら
れる１、受光素子（８）は、その入射面（８ａ）で出光
面（４ｂ）から出射される光信号を受°け、これを電気
信号に変換し、車体固定側に配設される制御コンピュー
タ（不図示）へ信号を送る。On the other hand, (8) indicates the end on the side fixed to the vehicle body 1, for example, the upper end of the steering column. For example, a case or the like is provided at the end (6) on the side fixed to the vehicle body, and a light emitting element (7) such as a light emitting diode and a light receiving element (8) such as a photodiode are arranged at predetermined positions inside the case. These light emitting elements (
7) The light receiving element (8) is arranged at a distance from the axis (a) to the light emitting element (7) and the input surface (4a), respectively.
and are at the same position in the radial direction, and the light receiving element (8
) and the light exit surface (4b) are set to be at the same position in the radial direction. In the above, the light emitting element (7)
A drive current for generating a predetermined signal is supplied from a power supply section (not shown) to. The W dynamic current is generated in a pulsed manner and the light emitting element (7) 1 repeats blinking, and this light is sent from the output surface (7a) of the light emitting element (7) to the light entrance surface (4a) 1, the light receiving element (8) receives the optical signal emitted from the light output surface (4b) at its entrance surface (8a), converts it into an electrical signal, and sends the signal to a control computer (not shown) disposed on the fixed side of the vehicle body. send.
上記において発光素子（７）と入党面（４ａ）とで送光
部（Ａ）を構成し、出光面（４ｂ）と受光素子（８）と
で受光部（Ｂ）を構成する。一対の送光部（Ａ）と受光
部（Ｂ）は、信号の伝送についてループを形成している
。In the above, the light emitting element (7) and the entrance surface (4a) constitute the light transmitting section (A), and the light emitting surface (4b) and the light receiving element (8) constitute the light receiving section (B). The pair of light transmitting section (A) and light receiving section (B) form a loop for signal transmission.
前記送光部（Ａ）、受光部（１；）の各間隙（Ｓ ＋）
には、前述の如く、ステアリングホイール（１）のスポ
ーク部（ｌｃ）が位置し、ステアリングホイール（］）
が回転するとき送光部（＾）、受光部ＣＢ）、の各間隙
（’＋）をスポーク部（ｌｃ）がよぎることになる。Each gap (S +) between the light transmitting part (A) and the light receiving part (1;)
As mentioned above, the spokes (lc) of the steering wheel (1) are located in the steering wheel (]).
When it rotates, the spoke part (lc) crosses each gap ('+) between the light transmitting part (^) and the light receiving part CB).
そこでスポーク部（１ｃ）の送光部（Ａ）、受光部（Ｂ
）の間隙（Ｓｌ）をよぎる部分には導光体（９）、（９
）を設ける。導光体（９）は発光素子（７）から入光面
（４ａ）への光、出光面（４ｂ）から受光素子（８）へ
の光を通過させる作用を有する。Therefore, the light transmitting part (A) and the light receiving part (B) of the spoke part (1c)
), the light guide (9), (9
) will be established. The light guide (9) has the function of passing light from the light emitting element (7) to the light incident surface (4a) and light from the light emitting surface (4b) to the light receiving element (8).
そして、第２図に示す如く平面上送光部（Ａ）と受光部
（８）が配置される位置間隔θＩは、スポーク部（ｌｃ
）、（ｌｃ）が配置された間隔θ２と異ならせて設定さ
れている。これによって導光体（９）、（９）の間隔は
θｌとなり、送光部（Ａ）と受光部ＣＢ）は間隔はθｔ
であるから導光体（９）、（９）のそれぞれが同時に送
光部（Ａ）、受光部ＣＢ）をよぎることはない。As shown in FIG.
), (lc) are set to be different from the interval θ2 at which they are arranged. As a result, the distance between the light guides (9) and (9) is θl, and the distance between the light transmitting part (A) and the light receiving part CB) is θt.
Therefore, the light guides (9), (9) do not cross the light transmitting section (A) and the light receiving section CB) at the same time.
上記構成によれば、発光素子（７）→入党面（４ａ）呻
導光路（４）→出光面（４ｂ）→受光素子（８）の光伝
送路において、スポーク部（ｌｃ） 、 （ｌｃ）の導
光体（９）、（９）が同時に光伝送路を通過することは
なく１例えばいずれか一方の導光体が上記光伝送路中の
送光部（Ａ）に位置するとき、他の受光部ＣＢ）は間隙
（Ｓｌ）を介して光の伝送が行われるため、光信号の減
衰を最小限に抑えることができる。このように本発明に
係る光伝送路によれば安定した通信路を確保することが
できる。According to the above configuration, in the optical transmission path from the light emitting element (7) to the entrance surface (4a) to the light guiding path (4) to the light output surface (4b) to the light receiving element (8), the spoke parts (lc), (lc) The light guides (9) and (9) do not pass through the optical transmission path at the same time.For example, when one of the light guides is located in the light transmission section (A) in the optical transmission path, the other light guide does not pass through the optical transmission path at the same time. Since the light receiving section CB) transmits light through the gap (Sl), the attenuation of the optical signal can be minimized. As described above, according to the optical transmission line according to the present invention, a stable communication path can be ensured.
上記実施例ではスポーク部の本数、送受光部等の対数が
増した場合にも前記実施例と同様に構成される。In the above embodiment, the structure is the same as in the above embodiment even when the number of spoke parts and the number of logarithms of light transmitting/receiving parts, etc. are increased.
（発明の効果）
以上の説明で明らかなように本発明によれば、固定パッ
ド側に設けた導光部と車体固定側の発光素子、受光素子
との間に設けられた送光部、受光部のそれぞれの間隙を
スポーク部が通過し且つスポーク通過時にはスポーク部
に備えた導光体で光を伝送させるようにした光伝送路に
おいて、上記導光体が同時に送光部、受光部の間隙を通
過しないようにしたため、光の減衰を最小限に抑えるこ
とができ、正確且つ安定した光信号の伝送を行うことが
でさる。(Effects of the Invention) As is clear from the above description, according to the present invention, the light transmitting section and the light receiving section are provided between the light guide section provided on the fixed pad side and the light emitting element and light receiving element on the vehicle body fixed side. In an optical transmission path, the spoke parts pass through the gaps between the light transmitting part and the light receiving part, and the light guide provided in the spoke parts transmits light when passing through the spokes. Since the light does not pass through, it is possible to minimize the attenuation of the light and to perform accurate and stable transmission of the optical signal.
第１図は本発明に係るステアリングスイッチ装置、光伝
送路の構成を概略的に示す図、第２図は光伝送路におけ
る送光部、受光部の配置関係を示す平面図である。
図面中、（１）はステアリングホイール、（ｌｃ）は、
スポーク部、（２）はステアリングシャフト、（３）は
バー２ド、（４）は導光路、（５）は光スイツチ装置、
（６）は車体固定側の端部、（７）は発光素子、（８）
は受光素子、（９）は導光体、（Ａ）は送光部、（Ｂ）
は受光部である。
特許出願人 木田技研工業株式会社
同 東洋電装株式会社FIG. 1 is a diagram schematically showing the configuration of a steering switch device and an optical transmission line according to the present invention, and FIG. 2 is a plan view showing the arrangement of a light transmitting section and a light receiving section in the optical transmission line. In the drawing, (1) is a steering wheel, (lc) is
Spoke part, (2) steering shaft, (3) bar 2, (4) light guide, (5) optical switch device,
(6) is the end on the vehicle body fixed side, (7) is the light emitting element, (8)
is a light receiving element, (9) is a light guide, (A) is a light transmitting part, (B)
is the light receiving part. Patent applicant: Kida Giken Kogyo Co., Ltd. Toyodenso Co., Ltd.
Claims (1)
と車体固定側との間に少なくとも１組の送受光部を設け
て光の送受を行い且つ該固定パッドと該車体固定側との
間を上記ステアリングホィールのスポーク部がよぎるよ
うに構成されたステアリング装置において、 上記送受光部に対応する上記スポーク部の箇所に導光体
を設けると共に、各スポーク部の導光体の間隔に対しず
らせて上記各送受光部を配置するようにしたことを特徴
とする車両の光伝送路。[Scope of Claims] At least one set of light transmitting/receiving parts is provided between a fixed pad disposed in the center of the steering wheel and the fixed side of the vehicle body to transmit and receive light, and the fixing pad and the fixed side of the vehicle body In a steering device configured such that the spokes of the steering wheel cross between An optical transmission path for a vehicle, characterized in that each of the light transmitting and receiving sections is arranged offset from the light transmitting/receiving section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59195460A JPS6181842A (en) | 1984-09-18 | 1984-09-18 | Vehicle optical transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59195460A JPS6181842A (en) | 1984-09-18 | 1984-09-18 | Vehicle optical transmission line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6181842A true JPS6181842A (en) | 1986-04-25 |
| JPH0230902B2 JPH0230902B2 (en) | 1990-07-10 |
Family
ID=16341439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59195460A Granted JPS6181842A (en) | 1984-09-18 | 1984-09-18 | Vehicle optical transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6181842A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869144A (en) * | 1981-10-20 | 1983-04-25 | Toyota Motor Corp | Optical transmission device |
-
1984
- 1984-09-18 JP JP59195460A patent/JPS6181842A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5869144A (en) * | 1981-10-20 | 1983-04-25 | Toyota Motor Corp | Optical transmission device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0230902B2 (en) | 1990-07-10 |
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