JPH034621Y2 - - Google Patents
Info
- Publication number
- JPH034621Y2 JPH034621Y2 JP1984129232U JP12923284U JPH034621Y2 JP H034621 Y2 JPH034621 Y2 JP H034621Y2 JP 1984129232 U JP1984129232 U JP 1984129232U JP 12923284 U JP12923284 U JP 12923284U JP H034621 Y2 JPH034621 Y2 JP H034621Y2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle body
- rear wheel
- hydraulic actuator
- piston rod
- right lateral
- 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
- 239000000725 suspension Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は、車両の旋回時におけるサイドフオ
ースにより生ずるコンプライアンスを制御するた
めの後輪操舵制御装置に関するものである。[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a rear wheel steering control device for controlling compliance caused by side force when a vehicle turns.
（従来の技術）
従来、この種の後輪操舵制御装置としては、実
開昭58−192773号公報に記載のように、後輪の左
右方向の位置決めとトー角を規制するためホイル
サポートと車体とを揺動自在に連結する後輪サス
ペンシヨンの平行リンクを構成するラテラルリン
クの一方の左右ラテラルリンクの対向内端を遊端
とし、これらの内端間に操舵用油圧アクチユエー
タを設けたものが既知である。(Prior Art) Conventionally, this type of rear wheel steering control device uses a wheel support and a vehicle body to control the lateral positioning and toe angle of the rear wheels, as described in Japanese Utility Model Application Publication No. 58-192773. The opposing inner ends of one of the left and right lateral links constituting the parallel link of the rear wheel suspension that swingably connects the two are free ends, and a hydraulic actuator for steering is provided between these inner ends. Known.
（考案が解決しようとする問題点）
しかしながら、上記の従来技術の構成では、一
方の左右のラテラルリンクの対向内端は、各々直
接車体に支持されておらず、操舵用油圧アクチユ
エータを介して車体に支持されているため、操舵
用油圧アクチユエータ内の油圧が抜けた場合に
は、車輪に作用する横力を支えることができず、
車輪が回転してしまうために操案性が著しく損な
われしまう恐れがある。(Problem to be Solved by the Invention) However, in the configuration of the above-mentioned prior art, the opposing inner ends of one left and right lateral link are not directly supported by the vehicle body, but are connected to the vehicle body via a steering hydraulic actuator. Because the wheels are supported by
Because the wheels rotate, maneuverability may be significantly impaired.
（問題点を解決するための手段）
本考案は上述した問題を解決することを目的と
し、本考案によれば、第１図に示すように、ホイ
ルサポート１と車体２とを平行リンク３によつて
揺動自在に連結した後輪サスペンシヨンを具える
車両において、平行リンク３の一方の左右ラテラ
ルリンク４の内端４ａを弾性ブシユ７を介して車
体上の固定軸に揺動自在に連結し、これらの左右
ラテラルリンク４の内端間で前記車体２上に後輪
操舵用油圧アクチユエータ８を取付け、このアク
チユエータ８から左右に延びるピストンロツド９
を前記左右ラテラルリンク４の内端に前記車体上
の固定軸周りに相対揺動可能にそれぞれ連結した
ことを特徴とする。(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems.According to the present invention, as shown in FIG. Therefore, in a vehicle equipped with a swingably connected rear wheel suspension, the inner end 4a of the left and right lateral links 4, one of the parallel links 3, is swingably connected to a fixed shaft on the vehicle body via the elastic bushing 7. A rear wheel steering hydraulic actuator 8 is mounted on the vehicle body 2 between the inner ends of these left and right lateral links 4, and a piston rod 9 extends left and right from this actuator 8.
are connected to the inner ends of the left and right lateral links 4 so as to be relatively swingable around a fixed shaft on the vehicle body.
（作用）
上記構成によれば、車体２上に取付けた後輪操
舵用油圧アクチユエータ８の左側油室８Ａに操舵
油圧が導入されてピストンロツド９が矢Ａの方向
に軸方向に移動されることにより、このピストン
ロツド９に連結されたラテラルリンク４の内端４
ａは車体２上の軸６との間に介挿された弾性ブシ
ユ７の弾性効果により同様に矢Ａの方向に引か
れ、これによりラテラルリンク４の外端およびホ
イルサポート１を介して後輪１０を第１図に仮想
線で示すように転舵する。(Function) According to the above configuration, the steering hydraulic pressure is introduced into the left oil chamber 8A of the rear wheel steering hydraulic actuator 8 mounted on the vehicle body 2, and the piston rod 9 is moved axially in the direction of arrow A. , the inner end 4 of the lateral link 4 connected to this piston rod 9
a is similarly pulled in the direction of arrow A by the elastic effect of the elastic bushing 7 inserted between it and the shaft 6 on the vehicle body 2, and this causes the rear wheel to move through the outer end of the lateral link 4 and the wheel support 1. 10 is steered as shown by the imaginary line in FIG.
本考案によれば、ラテラルリンク４の内端４ａ
が車体２上に固定の軸６に連結され、また、この
ラテラルリンク４の内端４ａにピストンロツド９
のロツド端が連結された後輪操舵用油圧アクチユ
エータ８が車体２上に固定されていることによつ
て油圧アクチユエータ８の油圧が抜けたとして
も、車輪の位置を確実に保持できる。 According to the present invention, the inner end 4a of the lateral link 4
is connected to a shaft 6 fixed on the vehicle body 2, and a piston rod 9 is connected to the inner end 4a of this lateral link 4.
Since the rear wheel steering hydraulic actuator 8 to which the rod end of the rear wheel steering wheel is connected is fixed on the vehicle body 2, even if the hydraulic pressure of the hydraulic actuator 8 is lost, the position of the wheel can be reliably maintained.
（実施例）
第１図は本考案の１実施例を示し、図示の後輪
サスペンシヨンは、後輪１０を軸支する車輪支持
部材であるホイールサポート１と車体２とを平行
リンク３によつて揺動自在に連結して後輪１０の
左右方向の位置決めと一角を規制し、一方、ホイ
ールサポート１と車体２とをラジアスロツド１１
によつて揺動自在に連結して後輪１０の前後方向
の位置決めを行なつており、また、ホイールサポ
ート１と上方の車体２との間にシヨークアブソー
バ（ストラツト）１２が介挿されている。(Embodiment) FIG. 1 shows one embodiment of the present invention, and the illustrated rear wheel suspension is constructed by connecting a wheel support 1, which is a wheel support member that pivotally supports a rear wheel 10, and a vehicle body 2 using a parallel link 3. The wheel support 1 and the vehicle body 2 are connected to each other in a swingable manner to control the lateral positioning and one corner of the rear wheel 10.
The rear wheels 10 are swingably connected to each other to position the rear wheels 10 in the longitudinal direction, and a shear yoke absorber (strut) 12 is interposed between the wheel support 1 and the upper vehicle body 2. There is.
平行リンク３を構成する左右の一対のラテラル
リンク４，５は、内端で車体２に突設した軸６に
弾性ブシユ７を介して揺動自在に連結され、外端
でホイールサポート１に突設した軸１３にブシユ
１４を介して揺動自在に連結されている。 A pair of left and right lateral links 4 and 5 constituting the parallel link 3 are swingably connected to a shaft 6 protruding from the vehicle body 2 at their inner ends via elastic bushings 7, and projecting to the wheel support 1 at their outer ends. It is swingably connected to a provided shaft 13 via a bush 14.
後輪操舵用油圧アクチユエータ８は複働シリン
ダ装置で構成され、そのピストンロツド９の軸線
とラテラルリンク４の軸線とをほぼ一致させて左
右ラテラルリンク４の内端４ａ間（右側ラテラル
リンクは図示せず）で車体２上に適当な緩衝マウ
ントを介して取付け固定され、アクチユエータ８
から左右に延びるピストンロツド９の先端９ａを
左右ラテラルリンク４の内端４ａにそれぞれ連結
している。 The rear wheel steering hydraulic actuator 8 is composed of a double-acting cylinder device, and the axis of the piston rod 9 and the axis of the lateral link 4 are made to substantially coincide with each other, so that the rear wheel steering hydraulic actuator 8 is connected between the inner ends 4a of the left and right lateral links 4 (the right lateral link is not shown). ) is mounted and fixed on the vehicle body 2 via a suitable buffer mount, and the actuator 8
The tip end 9a of the piston rod 9 extending left and right from the piston rod 9 is connected to the inner end 4a of the left and right lateral links 4, respectively.
また、１５は後輪操舵用油圧アクチユエータ８
を制御するための電磁比例スプールバルブで、１
５ａ，１５ｂはソレノイドである。１６はオイル
ポンプ、１７はオイルタンク、１８は車両の操舵
ハンドル、１９はこのハンドル１８の操作量を検
出する舵角検出器、２０はこの舵角検出器１９の
出力信号を増幅してソレノイド１５ａ，１５ｂに
入力してバルブ１５を制御する増幅器である。 In addition, 15 is a hydraulic actuator 8 for rear wheel steering.
An electromagnetic proportional spool valve for controlling 1
5a and 15b are solenoids. 16 is an oil pump, 17 is an oil tank, 18 is a steering wheel of the vehicle, 19 is a steering angle detector that detects the amount of operation of this steering wheel 18, and 20 is a solenoid 15a which amplifies the output signal of this steering angle detector 19. , 15b to control the valve 15.
第２〜５図は、ラテラルリンク４の内端４ａと
後輪操舵用油圧アクチユエータ８のピストンロツ
ド９の先端９ａとを連結するよう構成した後輪サ
スペンシヨンの平行リンク３の車体２への取付用
弾性ブシユ７の一例構造を示す。 Figures 2 to 5 show how to attach the parallel link 3 of the rear wheel suspension to the vehicle body 2, which is configured to connect the inner end 4a of the lateral link 4 and the tip 9a of the piston rod 9 of the rear wheel steering hydraulic actuator 8. An example structure of the elastic bushing 7 is shown.
図示の例では、車体に固定された軸６の周りに
ゴム等の円筒形弾性体２１が固着され、この弾性
体２１にはその弾性変形が所要の方向に均一に生
ずるよう切欠部２２が形成されている。弾性体２
１の周りにラテラルリンク４の環状内端４ａが一
体に固着され、この環状内端４ｂの周りに合成樹
脂製の円環状摺動部材２３が嵌着され、この摺動
部材２３の周りにピストンロツド９の先端に一体
に形成した環状キヤツブ９ｂが嵌装され、軸６の
中心孔６ａに挿通したボルト２４のねじ付端部２
４ａにナツト２５を締付けて組立てられている。 In the illustrated example, a cylindrical elastic body 21 made of rubber or the like is fixed around a shaft 6 fixed to the vehicle body, and a notch 22 is formed in this elastic body 21 so that elastic deformation occurs uniformly in a desired direction. has been done. Elastic body 2
An annular inner end 4a of the lateral link 4 is integrally fixed around the inner end 4b of the lateral link 4, a synthetic resin annular sliding member 23 is fitted around the annular inner end 4b, and a piston rod is fitted around the sliding member 23. The threaded end 2 of the bolt 24 is inserted into the center hole 6a of the shaft 6.
It is assembled by tightening a nut 25 to 4a.
第３図に示すように、環状キヤツプ９ｂおよび
摺動部材２３には内側のラテラルリンク４の連結
側で適当な円弧長の窓２６および２７を形成して
ラテラルリンク４が軸６の軸線の周りに矢Ｂで示
すように揺動し得るよう構成している。 As shown in FIG. 3, windows 26 and 27 of an appropriate arc length are formed in the annular cap 9b and the sliding member 23 on the connecting side of the inner lateral link 4, so that the lateral link 4 is rotated around the axis of the shaft 6. It is constructed so that it can swing as shown by arrow B.
第４図および第５図はピストンロツド９が矢Ｃ
の方向に移動して弾性体２１を変形し、弾性ブシ
ユ７の中心C1が軸６の中心C2より図面において
左方にＳだけ移動し、これよつて後輪が転舵され
る際の状態を示す。 In Figures 4 and 5, the piston rod 9 is indicated by arrow C.
The center C1 of the elastic bushing 7 moves by an amount S to the left in the drawing from the center C2 of the shaft 6, which causes the rear wheels to be steered. Indicates the condition.
上述の図示の例では、ラテラルリンク４の内端
４ａを内側に、ピストンロツド９の先端９ａを外
側にして互に嵌合連結しいるが、これに限らず、
ラテラルリンク４の内端４ａを外側に、ピストン
ロツド９の先端９ａを内側にして同様に互に嵌合
連結することもできる。 In the illustrated example described above, the inner end 4a of the lateral link 4 is placed inside and the tip 9a of the piston rod 9 is placed outside to fit and connect with each other, but the invention is not limited to this.
It is also possible to fit and connect them to each other in the same way, with the inner end 4a of the lateral link 4 facing outside and the tip 9a of the piston rod 9 facing inside.
（考案の効果）
本考案によれば、後輪サスペンシヨンの平行リ
ンク３の一方の左右ラテラルリンク４の内端４ａ
を弾性ブシユ７を介して車体上の固定軸に揺動自
在に連結し、左右ラテラルリンクの内端間で車体
に後輪操舵用油圧アクチユエータを取付け、この
油圧アクチユエータから左右に延びるピストンロ
ツドを左右ラテラルリンクのに前記車体上の固定
軸周りに相対揺動可能にそれぞれ連結したことに
よつて、油圧アクチユエータ内の油圧が抜けたと
しても車輪に作用する横力は、車体で直接受ける
ことができるため、車輪の位置が変化することは
なく操縦安定性が損なわれることはない。(Effect of the invention) According to the invention, the inner end 4a of one of the left and right lateral links 4 of the parallel link 3 of the rear wheel suspension
is swingably connected to a fixed shaft on the vehicle body via an elastic bush 7, a hydraulic actuator for rear wheel steering is attached to the vehicle body between the inner ends of the left and right lateral links, and a piston rod extending left and right from this hydraulic actuator is connected to the left and right lateral links. By connecting the links so that they can swing relative to each other around the fixed shaft on the vehicle body, even if the hydraulic pressure in the hydraulic actuator is released, the lateral force acting on the wheels can be directly received by the vehicle body. , the position of the wheels does not change and steering stability is not impaired.
第１図は本考案による後輪操舵制御装置の概略
線図、第２図は第１図に示す弾性ブシユの一例構
造を示す断面図、第３図は第２図の−線上の
断面図、第４図および５図は第２図に示す弾性ブ
シユの作用説明図である。
１……ホイールサポート、２……車体、３……
平行リンク、４，５……ラテラルリンク、６……
車体上の軸、７……弾性ブシユ、８……後輪操舵
用油圧アクチユエータ、９……ピストンロツド、
１０……後輪、２１……弾性体、２２……切欠
部、２３……摺動部材、２４……ボルト、２６，
２７……窓。
FIG. 1 is a schematic diagram of a rear wheel steering control device according to the present invention, FIG. 2 is a cross-sectional view showing an example structure of the elastic bushing shown in FIG. 1, and FIG. 3 is a cross-sectional view on the - line of FIG. 4 and 5 are explanatory views of the action of the elastic bushing shown in FIG. 2. 1...Wheel support, 2...Vehicle body, 3...
Parallel link, 4, 5...Lateral link, 6...
Axle on the vehicle body, 7... Elastic bush, 8... Hydraulic actuator for rear wheel steering, 9... Piston rod,
DESCRIPTION OF SYMBOLS 10... Rear wheel, 21... Elastic body, 22... Notch, 23... Sliding member, 24... Bolt, 26,
27...window.
Claims (1)
行リンクによつて揺動自在に連結した後輪サスペ
ンシヨンを具える車両において、 前記平行リンクの一方のラテラルリンクの内端
を弾性ブシユを介して車体上の固定軸に揺動自在
に連結し、これら左右ラテラルリンクの内端間で
前記車体上に後輪操舵用油圧アクチユエータを取
付け、この油圧アクチユエータから左右に延びる
ピストンロツドを前記左右ラテラルリンクの内端
に前記車体上の固定軸周りに相対揺動可能にそれ
ぞれ連結したことを特徴とする後輪操舵制御装
置。[Scope of Claim for Utility Model Registration] In a vehicle equipped with a rear wheel suspension in which a wheel support that pivotally supports the rear wheels and the vehicle body are swingably connected by a parallel link, one of the lateral links of the parallel link The inner end is swingably connected to a fixed shaft on the vehicle body via an elastic bushing, and a hydraulic actuator for rear wheel steering is mounted on the vehicle body between the inner ends of these left and right lateral links, and the hydraulic actuator extends left and right from this hydraulic actuator. A rear wheel steering control device characterized in that piston rods are connected to inner ends of the left and right lateral links so as to be able to swing relative to each other around a fixed shaft on the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12923284U JPS6144366U (en) | 1984-08-28 | 1984-08-28 | Rear wheel steering control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12923284U JPS6144366U (en) | 1984-08-28 | 1984-08-28 | Rear wheel steering control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6144366U JPS6144366U (en) | 1986-03-24 |
| JPH034621Y2 true JPH034621Y2 (en) | 1991-02-06 |
Family
ID=30687849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12923284U Granted JPS6144366U (en) | 1984-08-28 | 1984-08-28 | Rear wheel steering control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6144366U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3703198C1 (en) * | 1987-02-03 | 1988-05-11 | Bayerische Motoren Werke Ag | Wheel suspension for steerable rear wheels of motor vehicles equipped with front wheel steering, in particular passenger cars |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214470A (en) * | 1982-06-07 | 1983-12-13 | Nissan Motor Co Ltd | Rear wheel steering device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192773U (en) * | 1982-06-18 | 1983-12-21 | 三菱自動車工業株式会社 | rear wheel steering device |
-
1984
- 1984-08-28 JP JP12923284U patent/JPS6144366U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58214470A (en) * | 1982-06-07 | 1983-12-13 | Nissan Motor Co Ltd | Rear wheel steering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6144366U (en) | 1986-03-24 |
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