JPH03107284U - - Google Patents
Info
- Publication number
- JPH03107284U JPH03107284U JP1540090U JP1540090U JPH03107284U JP H03107284 U JPH03107284 U JP H03107284U JP 1540090 U JP1540090 U JP 1540090U JP 1540090 U JP1540090 U JP 1540090U JP H03107284 U JPH03107284 U JP H03107284U
- Authority
- JP
- Japan
- Prior art keywords
- rear wheel
- wheel steering
- steering
- rear wheels
- eccentric shafts
- 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
- 239000000725 suspension Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims 2
Landscapes
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Description
第１図および第２図は本考案を適用すべき後輪
操舵装置の平面図および正面図、第３図および第
４図は左旋回時および右旋回時における後輪の転
舵状況を示す説明図、第５図はレバー部詳細図で
本考案の第１の実施例を示すものである。第６図
は本考案の第２の実施例を示す後輪操舵装置の平
面図である。
１……ケース、２……電動モータ、３，４……
偏心軸、３ａ，４ａ……偏心部、５，５０……サ
スペンシヨンリンク、６，７……レバー、８……
コネクチングロツド、９……後輪、１０……後輪
支持部材、１１……リーデングリンク、１２……
コントロールユニツト、１３……前輪。
FIGS. 1 and 2 are a plan view and a front view of a rear wheel steering device to which the present invention is applied, and FIGS. 3 and 4 show the steering status of the rear wheels when turning to the left and turning to the right. The explanatory drawing, FIG. 5, is a detailed view of the lever portion, showing the first embodiment of the present invention. FIG. 6 is a plan view of a rear wheel steering device showing a second embodiment of the present invention. 1... Case, 2... Electric motor, 3, 4...
Eccentric shaft, 3a, 4a... Eccentric part, 5, 50... Suspension link, 6, 7... Lever, 8...
Connecting rod, 9... Rear wheel, 10... Rear wheel support member, 11... Leading link, 12...
Control unit, 13...front wheel.
Claims (1)
取付部に設けられた左右偏心軸と、該左右の偏心
軸にそれぞれ固着された左右のレバーの先端部間
を連結するコネクチングロツドと、該左右の偏心
軸のいずれか一方の偏心軸部に設けられその偏心
軸およびコネクチングロツドを介して他方の偏心
軸を回転させて後輪を転舵させる後輪操舵用アク
チユエータと、前輪の操舵に関連して後輪の操舵
角目標値を演算にて決定しそれに応じて上記後輪
操舵用アクチユエータを回転させる出力信号を発
するコントロールユニツトとからなる後輪操舵装
置において、上記左右のレバーのレバー長間又は
左右の偏心軸の偏心量間に、後輪操舵用アクチユ
エータから左右後輪に至る操舵力伝達系の横剛性
の差に基づくコンプライアンスステアによるトー
角変化を相殺する大きさを有する差を設けたこと
を特徴とする４輪操舵車両の後輪操舵装置。 (2) 左右後輪を回転可能に支持する後輪支持部
材をそれぞれ左右の前側および後側の２本のサス
ペンシヨンリンクにより車体側部材に上下揺動可
能に支持するデユアルリンク式サスペンシヨンの
該前側域は後側のサスペンシヨンリンクのいずれ
か一方の車体側取付部に設けられた左右偏心軸と
、該左右の偏心軸にそれぞれ固着された左右のレ
バーの先端部間を連結するコネクチングロツドと
、該左右の偏心軸のいずれか一方の偏心軸部に設
けられその偏心軸およびコネクチングロツドを介
して他方の偏心軸を回転させて後輪を転舵させる
後輪操舵用アクチユエータと、前輪の操舵に関連
して後輪の操舵角目標値を演算にて決定しそれに
応じて上記後輪操舵用アクチユエータを回転させ
る出力信号を発するコントロールユニツトとから
なる後輪操舵装置において、上記左右のサスペン
シヨンリンクのそれぞれの前側および後側サスペ
ンシヨンリンクの各後輪支持部材への取付部間の
距離の間に、後輪操舵用アクチユエータから左右
後輪に至る操舵力伝達系の横剛性の差に基づくコ
ンプライアンスステアによるトー角変化を相殺す
る大きさを有する差を設けたことを特徴とする４
輪操舵車両の後輪操舵装置。[Scope of Claim for Utility Model Registration] (1) Between the left and right eccentric shafts provided on the vehicle body side attachment parts of the left and right rear wheel suspension links and the tips of the left and right levers fixed to the left and right eccentric shafts, respectively. Connecting rods and rear wheel steering, which is provided on either one of the left and right eccentric shafts and rotates the other eccentric shaft via the eccentric shaft and the connecting rod to steer the rear wheels. A rear wheel steering device comprising a rear wheel steering actuator, and a control unit that calculates a target steering angle value of the rear wheels in relation to front wheel steering and generates an output signal to rotate the rear wheel steering actuator accordingly. , between the lever lengths of the left and right levers or the eccentricity of the left and right eccentric shafts, offset the toe angle change due to compliance steering based on the difference in lateral rigidity of the steering power transmission system from the rear wheel steering actuator to the left and right rear wheels. 1. A rear wheel steering device for a four-wheel steering vehicle, characterized in that a difference having a size of . (2) A dual-link type suspension in which a rear wheel support member that rotatably supports the left and right rear wheels is supported on a vehicle body side member so that it can swing up and down by two suspension links on the left and right front and rear sides, respectively. The front area is a connecting rod that connects the left and right eccentric shafts provided on the vehicle body side attachment part of either one of the rear suspension links and the tips of the left and right levers fixed to the left and right eccentric shafts, respectively. a rear wheel steering actuator that is provided on one of the left and right eccentric shafts and rotates the other eccentric shaft via the eccentric shaft and a connecting rod to steer the rear wheels; A rear wheel steering device includes a control unit that calculates a target steering angle value of the rear wheels in connection with the steering of the rear wheels, and generates an output signal to rotate the rear wheel steering actuator accordingly. The difference in lateral rigidity of the steering force transmission system from the rear wheel steering actuator to the left and right rear wheels is determined by the distance between the attachment points of the front and rear suspension links to the rear wheel support members. A difference having a size that offsets a change in toe angle due to compliance steering based on the structure is provided.
Rear wheel steering device for wheel steering vehicles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990015400U JP2519820Y2 (en) | 1990-02-19 | 1990-02-19 | Rear-wheel steering system for 4-wheel steering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990015400U JP2519820Y2 (en) | 1990-02-19 | 1990-02-19 | Rear-wheel steering system for 4-wheel steering vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107284U true JPH03107284U (en) | 1991-11-05 |
| JP2519820Y2 JP2519820Y2 (en) | 1996-12-11 |
Family
ID=31518708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990015400U Expired - Lifetime JP2519820Y2 (en) | 1990-02-19 | 1990-02-19 | Rear-wheel steering system for 4-wheel steering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519820Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170068U (en) * | 1988-02-25 | 1989-11-30 |
-
1990
- 1990-02-19 JP JP1990015400U patent/JP2519820Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170068U (en) * | 1988-02-25 | 1989-11-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519820Y2 (en) | 1996-12-11 |
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