JPH02115073U - - Google Patents
Info
- Publication number
- JPH02115073U JPH02115073U JP2305589U JP2305589U JPH02115073U JP H02115073 U JPH02115073 U JP H02115073U JP 2305589 U JP2305589 U JP 2305589U JP 2305589 U JP2305589 U JP 2305589U JP H02115073 U JPH02115073 U JP H02115073U
- Authority
- JP
- Japan
- Prior art keywords
- wheel steering
- detection means
- steering angle
- rear wheel
- error
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims 4
- 239000012530 fluid Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す全体構成図、
第２図は制御フローチヤート図、第３図ないし第
６図は本考案の別の実施例のそれぞれ前後輪舵角
補正状態、操舵入力制限状態、後輪中立復帰開始
状態及び後輪中立復帰状態を示す全体構成図、第
７図及び第８図は本考案が実施される４輪操舵車
の全体構成を示す斜視図及びモード切換ギヤボツ
クスの側断面図、第９図は積荷状態変化によるア
クスルセンタの変位を説明する側面図、第１０図
は前後輪の舵角誤差特性図である。
１４……リヤピツトマンアーム、４１……油圧
シリンダ、４７……切換バルブ、５０……コント
ローラ、５１……モード切換スイツチ、５２……
前輪舵角センサ、５３……後輪舵角センサ。
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention;
FIG. 2 is a control flowchart, and FIGS. 3 to 6 are front and rear wheel steering angle correction states, steering input restriction states, rear wheel neutral return start states, and rear wheel neutral return states of other embodiments of the present invention, respectively. 7 and 8 are perspective views showing the overall structure of a four-wheel steering vehicle in which the present invention is implemented, and a side sectional view of the mode switching gearbox. FIG. FIG. 10 is a side view illustrating the displacement of the steering wheel, and FIG. 10 is a steering angle error characteristic diagram of the front and rear wheels. 14...Rear pitman arm, 41...Hydraulic cylinder, 47...Switching valve, 50...Controller, 51...Mode selection switch, 52...
Front wheel steering angle sensor, 53... Rear wheel steering angle sensor.
Claims (1)
輪舵角検出手段を備え、後輪操舵リンク中に設け
たシリンダに作動流体を供給する回路中の切換バ
ルブを前記各検出手段からの信号に基づき、前輪
と後輪の操舵角に誤差があるときに位置切換バル
ブを作動し前記シリンダを伸縮して誤差をなくす
ように制御するコントローラを設けたことを特徴
とする前後輪舵角誤差補正装置。 It is equipped with a mode switching detection means, a front wheel steering angle detection means, and a rear wheel steering angle detection means, and a switching valve in a circuit that supplies working fluid to a cylinder provided in a rear wheel steering link is controlled based on signals from each of the detection means. A front and rear wheel steering angle error correction device, comprising: a controller that operates a position switching valve when there is an error in the steering angles of the front wheels and the rear wheels, and expands and contracts the cylinder to eliminate the error.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2305589U JPH02115073U (en) | 1989-03-02 | 1989-03-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2305589U JPH02115073U (en) | 1989-03-02 | 1989-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02115073U true JPH02115073U (en) | 1990-09-14 |
Family
ID=31241726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2305589U Pending JPH02115073U (en) | 1989-03-02 | 1989-03-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02115073U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004284522A (en) * | 2003-03-24 | 2004-10-14 | Shiyooshin:Kk | Agricultural vehicle |
-
1989
- 1989-03-02 JP JP2305589U patent/JPH02115073U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004284522A (en) * | 2003-03-24 | 2004-10-14 | Shiyooshin:Kk | Agricultural vehicle |
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