JPS637539Y2 - - Google Patents
Info
- Publication number
- JPS637539Y2 JPS637539Y2 JP1983113420U JP11342083U JPS637539Y2 JP S637539 Y2 JPS637539 Y2 JP S637539Y2 JP 1983113420 U JP1983113420 U JP 1983113420U JP 11342083 U JP11342083 U JP 11342083U JP S637539 Y2 JPS637539 Y2 JP S637539Y2
- Authority
- JP
- Japan
- Prior art keywords
- wheel drive
- switching
- switch
- latching relay
- steering
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は自動車において２輪駆動と４輪駆動と
を切換使用することができるようになつている所
謂パートタイム4WD車の切換装置に関するもの
である。[Detailed Description of the Invention] The present invention relates to a switching device for a so-called part-time 4WD vehicle, which is capable of switching between two-wheel drive and four-wheel drive.
パートタイム4WD車でセンタデイフアレンシ
ヤル機構を有していないものは特開昭57−15019
号公報にて既に公知となつている。 Part-time 4WD vehicles that do not have a center differential mechanism are JP-A-57-15019.
It is already publicly known in the publication No.
このようにセンタデイフアレンシヤル機構を持
たないパートタイム4WD車においては、４輪駆
動での旋回時は前輪と後輪の回転数の差によつて
一種のブレーキがかかつた状態となる。従つて２
輪駆動での旋回中に誤つて４輪駆動に切換えると
突然ブレーキがかかつた状態となつてしまい、又
４輪駆動での旋回中誤つて２輪駆動に切換えると
突然ブレーキが解除された状態となり、いずれも
安全運転の面から好ましくない。 In this way, in part-time 4WD vehicles that do not have a center differential mechanism, when turning in four-wheel drive, a type of brake is applied due to the difference in rotation speed between the front and rear wheels. Therefore 2
If you accidentally switch to four-wheel drive while turning in four-wheel drive, the brakes will suddenly be applied, and if you accidentally switch to two-wheel drive while turning in four-wheel drive, the brakes will suddenly be released. Both of these are unfavorable from the standpoint of safe driving.
更に２輪駆動と４輪駆動の切換用アクチユエー
タとしてバキユームアクチエータを使用したもの
にあつては、特に４輪駆動での旋回中２輪駆動に
切換えると切換シヨツクにより各種機構に無理な
荷重が作用したり異音が発生したりする。 Furthermore, in cases where a vacuum actuator is used as an actuator for switching between 2-wheel drive and 4-wheel drive, if switching to 2-wheel drive while turning in 4-wheel drive, the switching shock will place an unreasonable load on various mechanisms. It may work or make an abnormal noise.
本考案は上記のような従来の問題に対処するこ
とを目的とするもので、以下附図実施例を参照し
て説明する。 The present invention is intended to address the above-mentioned conventional problems, and will be described below with reference to embodiments in the accompanying drawings.
図において、１は電源、２はメインキースイツ
チ、３はラツチングリレー、４及び５は２輪駆動
用及び４輪駆動用のソレノイドバルブであり、ラ
ツチングリレー３のスイツチ３１が実線示のよう
に４輪駆動側接点ｂをオンとしているときは４輪
駆動用ソレノイドバルブ５が開となつてバキユー
ムをアクチユエータ６の一方の室６２に導いて図
示しないミツシヨンの切換機構を４輪駆動状態に
作動させ、又ラツチングリレー３のスイツチ３１
が点線示のように２輪駆動側接点ａをオンとする
と２輪駆動用ソレノイドバルブ４が開、４輪駆動
用ソレノイドバルブ５が閉となつてバキユームを
アクチユエータ６の他方の室６１に導いて２輪駆
動に切換わるようになつている。 In the figure, 1 is a power supply, 2 is a main key switch, 3 is a latching relay, 4 and 5 are solenoid valves for two-wheel drive and four-wheel drive, and switch 31 of latching relay 3 is as shown by the solid line. When the 4-wheel drive side contact b is turned on, the 4-wheel drive solenoid valve 5 is opened and the vacuum is guided to one chamber 62 of the actuator 6, thereby operating the switching mechanism of the transmission (not shown) to the 4-wheel drive state. and switch 31 of latching relay 3.
When the two-wheel drive side contact a is turned on as shown by the dotted line, the two-wheel drive solenoid valve 4 opens, the four-wheel drive solenoid valve 5 closes, and the vacuum is guided to the other chamber 61 of the actuator 6. It is now possible to switch to two-wheel drive.
上記ラツチングリレー３のスイツチ３１の切換
え作動は、電源からラツチングリレー３の２輪駆
動用及び４輪駆動用の各コイル３２及び３３に至
る切換信号回路に設けた切換スイツチ７の切換操
作によつて行われるが、本考案では上記ラツチン
グリレー３の切換信号回路に転舵時オフとなり転
舵時以外はオンとなる転舵検出スイツチ８を直列
に介装し、転舵時即ち車両旋回中は転舵検出スイ
ツチ８がオフとなりドライバが誤つて切換スイツ
チ７を切換操作しても切換作動が行われず、転舵
が終了して転舵検出スイツチ８がオンとなつたと
き切換作動が行われるようにしたものである。 The switching operation of the switch 31 of the latching relay 3 is performed by the switching operation of the changeover switch 7 provided in the switching signal circuit from the power supply to the two-wheel drive and four-wheel drive coils 32 and 33 of the latching relay 3. However, in the present invention, a turning detection switch 8 is connected in series to the switching signal circuit of the latching relay 3, which is turned off when steering is turned and turned on except when turning. In the middle, the steering detection switch 8 is turned off, and even if the driver accidentally switches the changeover switch 7, the switching operation is not performed, and the switching operation is performed when the steering is completed and the steering detection switch 8 is turned on. It was designed so that it would be
本考案はラツチングリレーの切換信号回路に転
舵時オフとなる転舵検出スイツチを設けるだけの
極めて簡単なる構成によつて、転舵中ドライバが
誤つて切換スイツチを切換操作しても、その切換
信号は転舵が終了するまでラツチングリレーには
発せられず、転舵が終了して直進状態に戻つたと
きはじめて切換信号を発しラツチングリレーが切
換作動し、アクチユエータが作動してミツシヨン
の切換機構を作動させるので、旋回中での２輪駆
動、４輪駆動の切換えによつて生ずる種々のトラ
ブルは完全に防止され得るもので、コストがあま
り嵩むことなく商品性の向上をはかることができ
ることと相俟つて実用上多大の効果をもたらし得
るものである。 The present invention has an extremely simple structure in which the switching signal circuit of the latching relay is provided with a steering detection switch that is turned off when the steering wheel is turned. The switching signal is not sent to the latching relay until the steering is completed, and only when the steering is completed and the steering returns to the straight-ahead state, the switching signal is issued, the latching relay switches, and the actuator operates to start the mission. Since the switching mechanism is activated, various troubles caused by switching between two-wheel drive and four-wheel drive while turning can be completely prevented, and the product quality can be improved without increasing costs too much. Combined with what can be done, this can bring about great practical effects.
尚転舵検出スイツチ８は、例えば操向輪即ち前
車輪の転舵方向角度を検出して作動するものであ
つても良いし、又ステアリング系統の各種作動部
材の動きを検出して作動するものを用いても良
い。 The steering detection switch 8 may be activated by detecting the steering angle of the steered wheels, that is, the front wheels, or may be activated by detecting the movements of various operating members of the steering system. You may also use
附図は本考案の実施例を示す回路図である。
１……電源、３……ラツチングリレー、４，５
……ソレノイドバルブ、６……アクチユエータ、
７……切換スイツチ、８……転舵検出スイツチ。
The accompanying drawing is a circuit diagram showing an embodiment of the present invention. 1...Power supply, 3...Latching relay, 4,5
... Solenoid valve, 6 ... Actuator,
7... Selector switch, 8... Rudder turning detection switch.
Claims (1)
レーへの切換信号回路に設けた切換スイツチの操
作にて行うようにした切換装置において、上記ラ
ツチングリレーへの切換信号回路に、転舵時該切
換信号回路をオフとする転舵検出スイツチを設け
たことを特徴とする自動車における２輪駆動、４
輪駆動切換装置。 In a switching device in which switching between two-wheel drive and four-wheel drive is performed by operating a switch provided in a switching signal circuit to the latching relay, the switching signal circuit to the latching relay is configured to switch between two-wheel drive and four-wheel drive. A two-wheel drive vehicle in an automobile, characterized in that it is provided with a steering detection switch that turns off the switching signal circuit,
Wheel drive switching device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11342083U JPS6020928U (en) | 1983-07-21 | 1983-07-21 | 2-wheel drive/4-wheel drive switching device in automobiles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11342083U JPS6020928U (en) | 1983-07-21 | 1983-07-21 | 2-wheel drive/4-wheel drive switching device in automobiles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6020928U JPS6020928U (en) | 1985-02-13 |
| JPS637539Y2 true JPS637539Y2 (en) | 1988-03-04 |
Family
ID=30262564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11342083U Granted JPS6020928U (en) | 1983-07-21 | 1983-07-21 | 2-wheel drive/4-wheel drive switching device in automobiles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6020928U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5897032U (en) * | 1981-12-24 | 1983-07-01 | 富士重工業株式会社 | Automatic switching device for 4-wheel drive vehicles |
-
1983
- 1983-07-21 JP JP11342083U patent/JPS6020928U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6020928U (en) | 1985-02-13 |
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