JPH0314415Y2 - - Google Patents
Info
- Publication number
- JPH0314415Y2 JPH0314415Y2 JP9869185U JP9869185U JPH0314415Y2 JP H0314415 Y2 JPH0314415 Y2 JP H0314415Y2 JP 9869185 U JP9869185 U JP 9869185U JP 9869185 U JP9869185 U JP 9869185U JP H0314415 Y2 JPH0314415 Y2 JP H0314415Y2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- differential
- vehicle
- drive
- wheel drive
- 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
- 230000005540 biological transmission Effects 0.000 claims description 12
- 230000000694 effects Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、デフロツク付車両のデフロツク制御
装置に関する。更に詳しくはデフロツクの動作を
所定の走行条件のときに自動的に解除する装置に
関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a differential control device for a vehicle equipped with a differential lock. More specifically, the present invention relates to a device for automatically canceling the operation of a differential lock under predetermined driving conditions.
従来、デフロツク付車両は、変速機の他にこの
駆動出力をフロントアクスル又はリアアクスルの
うちの所定の一方又は双方に分配することができ
るトランスフアを備え、セレクトレバーやセレク
トスイツチボタン等の切換手段を操作することに
より、このトランスフアを二輪駆動と四輪駆動と
に交互に切換える。そしてフロントアクスル又は
リアアクスルのうちの所定の一方にデフロツク手
段を設け、デフロツクスイツチを入れることでそ
の所定のアクスルに設けたデフをロツクできるよ
うになつている。 このデフロツク付車両は泥ね
い地等の悪路で立往生した場合等に、上記切換手
段により四輪駆動に切換え、かつデフロツク手段
を作動させて左右の車輪を差動させることなく同
一回転させ、全輪に同一の駆動力を与えて悪路か
ら脱出している。
Conventionally, vehicles equipped with a differential lock include, in addition to a transmission, a transfer that can distribute the drive output to a predetermined one or both of the front axle or rear axle, and a switching means such as a select lever or a select switch button. By operating this, the transfer is alternately switched between two-wheel drive and four-wheel drive. A differential lock means is provided on a predetermined one of the front axle or the rear axle, and the differential provided on the predetermined axle can be locked by turning on the deflock switch. When a vehicle with a differential lock gets stuck on a rough road such as a muddy ground, it switches to four-wheel drive using the switching means, operates the differential lock means, and rotates the left and right wheels at the same rate without differential rotation. It provides the same driving force to the wheels to escape from rough roads.
しかし、従来のデフロツク付車両はデフロツク
手段のロツク解除を運転者の判断によつて行つて
いるため、悪路から増出した後に運転者が不注意
でデフロツク手段を働かせたまま走行を続ける
と、左右輪の回転抵抗に差があつても左右輪は同
一回転するため、その差が路面とのスリツプとし
て現れ、デフ装置、ドライブシヤフト、タイヤ等
に負担を掛け、しかも操縦の安定性を悪化させる
問題点があつた。
However, in conventional vehicles equipped with a differential lock, the unlocking of the differential lock is done at the discretion of the driver, so if the driver inadvertently continues driving with the differential engaged after driving off a rough road, Even if there is a difference in the rotational resistance between the left and right wheels, the left and right wheels rotate at the same rate, so this difference appears as slippage with the road surface, putting strain on the differential gear, drive shaft, tires, etc., and worsening the stability of steering. There was a problem.
本考案の目的は、デフロツク手段のロツク動作
を所定の走行条件のとき解除してデフロツク付車
両の駆動系の負担を軽減し、操安性の悪化を防止
するデフロツク制御装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a differential lock control device that releases the locking operation of a differential lock means under predetermined driving conditions, reduces the load on the drive system of a vehicle equipped with a differential lock, and prevents deterioration of steering stability. .
上記目的を達成するための本考案の構成を実施
例に対応する図に基づいて説明する。
The configuration of the present invention for achieving the above object will be explained based on figures corresponding to embodiments.
本考案のデフロツク制御装置は、車両の変速機
11の駆動出力をフロントアクスル16又はリア
アクスル15のうちの所定の一方又は双方に分配
することができるトランスフア13と、このトラ
ンスフア13を作動させて車両の駆動系を二輪駆
動と四輪駆動とに交互に切換える切換手段17
と、デフロツクスイツチ29の操作によりフロン
トデフ18又はリアデフ19のうちの所定の一方
をロツクするデフロツク手段20とを備えたデフ
ロツク付車両において、変速機11のギヤ位置を
第一速段又は後退段にシフトしたときにオン状態
となるシフトスイツチ27と、切換手段17が車
両の駆動系を四輪駆動に切換えたときにオン状態
となるセレクトスイツチ28とを備える。そして
デフロツク手段20はシフトスイツチ27又はセ
レクトスイツチ28のいずれか一方がオフ状態の
ときにはロツク動作をしないように構成したもの
である。 The differential lock control device of the present invention includes a transfer 13 that can distribute the drive output of a vehicle transmission 11 to a predetermined one or both of a front axle 16 and a rear axle 15, and a transfer 13 that operates the transfer 13. switching means 17 for alternately switching the drive system of the vehicle between two-wheel drive and four-wheel drive;
and a differential lock means 20 that locks a predetermined one of the front differential 18 or the rear differential 19 by operating a differential switch 29, the gear position of the transmission 11 is changed to first gear or reverse gear. The vehicle includes a shift switch 27 that is turned on when the vehicle is shifted to four-wheel drive, and a select switch 28 that is turned on when the switching means 17 switches the drive system of the vehicle to four-wheel drive. The deflock means 20 is constructed so that it does not perform a locking operation when either the shift switch 27 or the select switch 28 is in the OFF state.
車両が悪路に入り込み、運転者が切換手段17
により車両の駆動系を四輪駆動に切換え、デフロ
ツクスイツチ29を入れた後、変速ギヤ位置を第
一速段又は後退段にシフトすると、デフロツク手
段20が作動し、全輪に駆動力が均一に伝達され
るため、車両は悪路から脱出することができる。
When the vehicle enters a rough road, the driver activates the switching means 17.
After switching the vehicle's drive system to four-wheel drive and turning on the differential gear switch 29, when the transmission gear position is shifted to first gear or reverse gear, the differential gear 20 is activated and the driving force is uniformly applied to all wheels. This allows the vehicle to escape from the rough road.
ここで、運転者がデフロツクスイツチ29を切
り忘れたままデフロツク状態で走行しようとして
も、変速ギヤ位置を第二速段以上にシフトアツプ
するか、又は運転者が車両の駆動系を再び二輪駆
動に切換えれば、デフロツクスイツチ29がオン
状態のままでも、デフロツク手段20は作動しな
くなる。 Here, even if the driver forgets to turn off the deflock switch 29 and attempts to drive with the defroc locked, the driver must either shift up the transmission gear position to second gear or higher, or switch the vehicle's drive system back to two-wheel drive. If so, the defroc means 20 will not operate even if the defroc switch 29 remains on.
次に本考案の一実施例を図面に基づいて詳しく
説明する。
Next, one embodiment of the present invention will be described in detail based on the drawings.
図において、この例はフロントデフロツク付車
両である。エンジン10の変速機11の出力軸は
小プロペラシヤフト12を介してトランスフア1
3に連結する。トランスフア13は変速機11の
駆動出力をリアアクスル15又はリアアクスル1
5とフロントアクスル16の双方に分配する。 In the figure, this example is a vehicle with a front differential lock. The output shaft of the transmission 11 of the engine 10 is connected to the transfer 1 via a small propeller shaft 12.
Connect to 3. The transfer force 13 transfers the drive output of the transmission 11 to the rear axle 15 or the rear axle 1.
5 and the front axle 16.
このトランスフア13には上記クラツチを断接
するセレクトレバー17が設けられる。セレクト
レバー17は運転者のレバー切換え操作によりを
断接して、車両の駆動系を二輪駆動(後輪駆動)
から四輪駆動、或いはその反対に交互に切換える
ことができる。 This transfer 13 is provided with a select lever 17 for connecting and disconnecting the clutch. The select lever 17 connects and disconnects the drive system of the vehicle by switching the lever to two-wheel drive (rear-wheel drive).
It can be switched alternately from to four-wheel drive or vice versa.
フロントアクスル16にはフロントデフ18を
ロツクするロツクユニツト20が取付けられる。
このユニツト20にはエア管路21が接続され
る。エア管路21は途中に電磁弁22が介装さ
れ、エアタンク23に接続される。電磁弁22の
一方の電気接点にはキースイツチ25を介してバ
ツテリ26が接続され、電磁弁22の他方の電気
接点にはシフトスイツチ27とセレクトスイツチ
28とデフロツクスイツチ29とが直列に接続さ
れる。このシフトスイツチ27は、変速機11の
ギヤ位置を第一速段又は後退段にシフトしたとき
にオン状態となる検出スイツチである。またセレ
クトスイツチ28は、セレクトレバー17が車両
の駆動系を四輪駆動に切換えたときにオン状態と
なる検出スイツチである。 A lock unit 20 for locking the front differential 18 is attached to the front axle 16.
An air pipe line 21 is connected to this unit 20. The air pipe line 21 is connected to an air tank 23 with a solenoid valve 22 interposed therebetween. A battery 26 is connected to one electrical contact of the solenoid valve 22 via a key switch 25, and a shift switch 27, a select switch 28, and a defroster switch 29 are connected in series to the other electrical contact of the solenoid valve 22. . The shift switch 27 is a detection switch that is turned on when the gear position of the transmission 11 is shifted to the first gear or the reverse gear. The select switch 28 is a detection switch that is turned on when the select lever 17 switches the drive system of the vehicle to four-wheel drive.
このような構成の装置では、車両が悪路に入り
込み、運転者がセレクトレバー17を操作して車
両の駆動系を四輪駆動に切換え、デフロツクスイ
ツチ29を入れた後、変速機11のギヤ位置を第
一速段又は後退段にシフトすると、キースイツチ
25、シフトスイツチ27、セレクトスイツチ2
8及びデフロツクスイツチ29が全てオン状態と
なるため、電磁弁22が開きエアタンク23から
エアがロツクユニツト20に流入する。これによ
り、フロントデフ18はロツクされ、四輪全輪に
駆動力が均一に伝達されるため、車両は悪路から
脱出することができる。 In a device with such a configuration, when the vehicle enters a rough road, the driver operates the select lever 17 to switch the vehicle's drive system to four-wheel drive, turns on the differential switch 29, and then switches the gear of the transmission 11. When the position is shifted to first gear or reverse gear, the key switch 25, shift switch 27, and select switch 2
Since the lock unit 8 and the defroc switch 29 are all turned on, the solenoid valve 22 opens and air flows into the lock unit 20 from the air tank 23. As a result, the front differential 18 is locked and driving force is uniformly transmitted to all four wheels, allowing the vehicle to escape from the rough road.
ここで、運転者がデフロツクスイツチ29を切
り忘れたままデフロツク状態で走行しようとして
も、変速ギヤ位置を第二速段以上にシフトアツプ
するか、又は運転者が車両の駆動系を再び二輪駆
動に切換えていれば、シフトスイツチ27又はセ
レクトスイツチ28がオフ状態になるため、電磁
弁22に電流が流れなくなり、電磁弁22が閉じ
てエア管路21のエアを解放する。これによりデ
フロツクスイツチ29がオン状態のままでも、ロ
ツクユニツト20にエアが流入しなくなり、フロ
ントデフ18のロツクは自動的に解除される。ま
た悪路以外の通常の走行時に、運転者が誤つてデ
フロツクスイツチ29を入れても、シフトスイツ
チ27及びセレクトスイツチ28がともにオン状
態でなければ、ロツクユニツト20は作動せず、
デフロツクがかかることはない。 Here, even if the driver forgets to turn off the deflock switch 29 and attempts to drive with the defroc locked, the driver must either shift up the transmission gear position to second gear or higher, or switch the vehicle's drive system back to two-wheel drive. If so, the shift switch 27 or the select switch 28 is turned off, so that no current flows through the solenoid valve 22, and the solenoid valve 22 closes to release the air in the air pipe 21. This prevents air from flowing into the lock unit 20 even if the differential switch 29 remains on, and the front differential 18 is automatically unlocked. Furthermore, even if the driver accidentally turns on the differential lock switch 29 during normal driving on roads other than rough roads, the lock unit 20 will not operate unless the shift switch 27 and select switch 28 are both in the ON state.
There is no defrot locking.
なお、上記例で示した電磁弁22の作動回路は
一例であつて、本考案はこれに限るものではな
い。 Note that the operating circuit of the electromagnetic valve 22 shown in the above example is one example, and the present invention is not limited to this.
また、トランスフア13の切換手段としてセレ
クトレバー17を用いた例を示したが、電気的に
切換えるスイツチボタが装備されている場合には
セレクトスイツチ28はスイツチボタンで兼用し
てもよい。 Further, although an example has been shown in which the select lever 17 is used as a switching means for the transfer 13, if an electrically switching switch button is provided, the select switch 28 may also be used as a switch button.
〔考案の効果〕
以上述べたように、本考案によれば、運転者が
真にデフロツク作動を必要としないときに、デフ
ロツクスイツチを入れても、デフロツク手段のロ
ツクが自動的に作動しないようにしたので、デフ
装置、ドライブシヤフト、タイヤ等のデフロツク
付車両の駆動系に無用の負担を掛けることがな
く、かつデフロツク付車両の操安性の悪化を未然
に防止できる優れた効果がある。[Effects of the invention] As described above, according to the invention, even if the driver turns on the defrot switch when there is no true need for the defrot to operate, the lock of the defroc means is prevented from automatically operating. As a result, there is no unnecessary burden on the drive system of the vehicle with the differential lock, such as the differential device, drive shaft, tires, etc., and there is an excellent effect of preventing deterioration of the maneuverability of the vehicle with the differential lock.
図は本考案一実施例制御装置の構成図。
11……変速機、13……トランスフア、15
……リアアクスル、16……フロントアクスル、
17……セレクトレバー(切換手段)、18……
フロントデフ、19……リアデフ、20……ロツ
クユニツト(デフロツク手段)、27……シフト
スイツチ、28……セレクトスイツチ、29……
デフロツクスイツチ。
The figure is a configuration diagram of a control device according to an embodiment of the present invention. 11...Transmission, 13...Transfer, 15
...Rear axle, 16...Front axle,
17...Select lever (switching means), 18...
Front differential, 19... Rear differential, 20... Lock unit (deflock means), 27... Shift switch, 28... Select switch, 29...
Defrot switch.
Claims (1)
はリアアクスルのうちの所定の一方又は双方に分
配することができるトランスフアと、このトラン
スフアを作動させて上記車両の駆動系を二輪駆動
と四輪駆動とに交互に切換える切換手段と、デフ
ロツクスイツチの切換えによりフロントデフ又は
リアデフのうちの所定の一方をロツクするデフロ
ツク手段とを備えたデフロツク付車両において、 上記変速機のギヤ位置を第一速段又は後退段に
シフトしたときにオン状態となるシフトスイツチ
と、上記切換手段が車両の駆動系を四輪駆動に切
換えたときにオン状態となるセレクトスイツチと
を備え、 上記デフロツク手段は上記シフトスイツチ又は
上記セレクトスイツチのいずれか一方がオフ状態
のときにはロツク動作をしないように構成したこ
とを特徴とするデフロツク制御装置。[Claims for Utility Model Registration] A transfer that can distribute the drive output of a vehicle transmission to a predetermined one or both of a front axle or a rear axle, and a drive of the vehicle by operating this transfer. In a vehicle equipped with a differential lock, the vehicle is equipped with a switching means for alternately switching the system between two-wheel drive and four-wheel drive, and a differential locking means for locking a predetermined one of a front differential or a rear differential by switching a differential switch. a shift switch that is turned on when the gear position of the vehicle is shifted to first gear or reverse gear, and a select switch that is turned on when the switching means switches the drive system of the vehicle to four-wheel drive. . A deflock control device, characterized in that said deflock means is constructed so as not to perform a locking operation when either said shift switch or said select switch is in an OFF state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9869185U JPH0314415Y2 (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9869185U JPH0314415Y2 (en) | 1985-06-28 | 1985-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS626131U JPS626131U (en) | 1987-01-14 |
JPH0314415Y2 true JPH0314415Y2 (en) | 1991-03-29 |
Family
ID=30966880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9869185U Expired JPH0314415Y2 (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0314415Y2 (en) |
-
1985
- 1985-06-28 JP JP9869185U patent/JPH0314415Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS626131U (en) | 1987-01-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7220209B1 (en) | Multimodal vehicle traction system | |
US5996758A (en) | Electromagnetically controlled bi-directional one-way clutch apparatus | |
JPS588434A (en) | Change-over controller of four-wheel drive vehicle | |
JP2002172951A (en) | Differential locking device of vehicle | |
JPH0314415Y2 (en) | ||
US11312235B2 (en) | Drive switching mechanism of utility vehicle | |
JPH0698938B2 (en) | Safety device for four-wheel steering type traveling vehicle | |
JPH036513Y2 (en) | ||
JPS59199331A (en) | Controller for differential lock apparatus | |
JPS6127304Y2 (en) | ||
JPS6325137A (en) | Feour wheel drive device | |
JPS6250238A (en) | Change over device between two-wheel-drive and four-wheel-drive for car | |
JPS5861025A (en) | Microcomputer controlled 4-wheel driving car | |
JPH032687B2 (en) | ||
JPH036512Y2 (en) | ||
JPH068739A (en) | Power transmission | |
JPS62131879A (en) | Steering control device for four wheel steerable type tractor | |
JPH0450522U (en) | ||
JPS6243854Y2 (en) | ||
JPS61178231A (en) | Differential gear engaging operation device of vehicles for wasteland | |
CN115823210A (en) | Vehicle differential lock control method, device and equipment and vehicle | |
JPH0790707B2 (en) | 4-wheel drive vehicle with front and rear wheel engagement mechanism control function | |
JPS62155133A (en) | Controller for four wheel driving | |
JPS6311435A (en) | Four wheel drive vehicle | |
JPH0349765B2 (en) |