JPS6243364A - Steering force control device of power-operated steering device - Google Patents
Steering force control device of power-operated steering deviceInfo
- Publication number
- JPS6243364A JPS6243364A JP18291385A JP18291385A JPS6243364A JP S6243364 A JPS6243364 A JP S6243364A JP 18291385 A JP18291385 A JP 18291385A JP 18291385 A JP18291385 A JP 18291385A JP S6243364 A JPS6243364 A JP S6243364A
- Authority
- JP
- Japan
- Prior art keywords
- steering
- car speed
- shaft
- force
- reaction force
- 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
Landscapes
- Power Steering Mechanism (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、入力軸と出力軸との相対回転に基づいて作動
されパワーシリンダへの圧油の給排を制御するサーボ弁
を備えた動力舵取装置の操舵力制御装置に関するもので
ある。[Detailed Description of the Invention] <Industrial Application Field> The present invention is directed to a power cylinder equipped with a servo valve that is operated based on relative rotation between an input shaft and an output shaft and controls supply and discharge of pressure oil to a power cylinder. The present invention relates to a steering force control device for a steering device.
〈従来の技術〉
従来車速等に応じてハンドルトルクを変化させる操舵力
制御装置として、車速等に比例した制御圧油を反力機構
に導入し、動力舵取装置の操舵力を車速等に応じて制御
するものは公知である。この種の制御装置においては、
反力機構に導入する油圧力を、動力舵取装置と供給ポン
プとを結ぶ高圧ラインの圧油を利用して制御している。<Conventional technology> Conventionally, as a steering force control device that changes the steering wheel torque according to the vehicle speed, control pressure oil proportional to the vehicle speed, etc. is introduced into the reaction force mechanism, and the steering force of the power steering device is changed according to the vehicle speed, etc. Control methods are known. In this type of control device,
The hydraulic pressure introduced into the reaction force mechanism is controlled using pressure oil in a high-pressure line connecting the power steering device and the supply pump.
また、本願出願人は、特願昭５９−８７２２１号によっ
て操舵力制御装置を特許出願している。この先願の操舵
力制御装置は、エンジンによって駆動される供給ポンプ
から吐出された圧油を動力舵取装置に必要な所定流量に
制御し余剰流をバイパス通路にバイパスする第１の流量
制御弁と、この第１の流量制御弁によってバイパスされ
たバイパス流量を一定流量に制御し余剰流を低圧側にバ
イパスする第２の流量制御弁と、この第２の流量制御弁
によって制御された一定流量の圧油を車速等に応じた制
御圧に制御する圧力制御弁と、この圧力制御弁にて制御
された制御圧を反力機構に導入する手段とによって構成
されたものである。The applicant has also filed a patent application for a steering force control device in Japanese Patent Application No. 59-87221. The steering force control device of this prior application includes a first flow control valve that controls the pressure oil discharged from the supply pump driven by the engine to a predetermined flow rate required for the power steering device, and bypasses the excess flow to a bypass passage. , a second flow control valve that controls the bypass flow bypassed by the first flow control valve to a constant flow rate and bypasses the surplus flow to the low pressure side, and a constant flow rate controlled by the second flow control valve. It is composed of a pressure control valve that controls pressure oil to a control pressure depending on the vehicle speed, etc., and a means for introducing the control pressure controlled by the pressure control valve into the reaction force mechanism.
〈発明が解決しようとする問題点〉
一般にこの種の制御装置においては、操舵圧を必要とす
る低速走行時には圧力機構に加える油圧力を低（シ、逆
に操舵圧をほとんど必要としない高速走行時には反力機
構に加える油圧力を高くする必要があるため、上記従来
装置の前者においては、操舵圧と反力油圧とを互いに干
渉しないように制御するための油圧回路が複雑となって
いる。また、後者の先願のものにおいては、電磁制御弁
、７０−デバイダ等の油圧制御バルブが必要である。<Problems to be Solved by the Invention> Generally, in this type of control device, the hydraulic pressure applied to the pressure mechanism is reduced during low-speed driving that requires steering pressure, and conversely, during high-speed driving that requires almost no steering pressure. Because it is sometimes necessary to increase the hydraulic pressure applied to the reaction force mechanism, in the former of the conventional devices described above, the hydraulic circuit for controlling the steering pressure and the reaction oil pressure so as not to interfere with each other is complicated. Further, in the latter prior application, a hydraulic control valve such as an electromagnetic control valve or a 70-divider is required.
く問題点を解決するための手段〉
本発明は、上記従来の問題を解決するために、入力軸と
出力軸との相対回転に基づいて作動されパワーシリンダ
への圧油の給排を制御するサーボ弁を備えた動力舵取装
置において、前記入力軸と出力軸間に車速等に応じた電
気信号により磁力を発生し、入力軸と出力軸の相対回転
力を変化させる電磁反力機構を備えたものである。Means for Solving the Problems> In order to solve the above conventional problems, the present invention operates based on the relative rotation between the input shaft and the output shaft and controls the supply and discharge of pressure oil to the power cylinder. A power steering device equipped with a servo valve includes an electromagnetic reaction force mechanism that generates a magnetic force between the input shaft and the output shaft using an electric signal according to vehicle speed, etc., and changes the relative rotational force between the input shaft and the output shaft. It is something that
く作 用〉
本発明は、車速等に応じた電気信号を電磁反力機構に印
加することにより、入力軸と出力軸間に磁力吸引力を発
生し、これにより入力軸と出力軸の相対回転の反力を制
御して車速等に応じてハンドルトルクを変化させるもの
である。Function> The present invention generates a magnetic attraction force between the input shaft and the output shaft by applying an electric signal according to the vehicle speed etc. to the electromagnetic reaction force mechanism, thereby reducing the relative rotation of the input shaft and the output shaft. This system controls the reaction force of the steering wheel and changes the steering torque depending on the vehicle speed, etc.
く実 施 例〉
以下本発明の実施例を図面に基づいて説明する。第１図
において、１０は動力舵取装置の本体をなすギヤハウジ
ングを示し、このギヤハウジングｌＯにはビニオン軸（
出力軸Ｎｌが回転可能に軸承され、このビニオン軸１１
はこれと交差する方向に摺動可能なラック軸１４に噛合
されている。ラック軸１４の両端は所要の操縦リンク機
構を介して操行車輪に連結され、またラック軸１４には
図示していないがパワーシリンダのピストンが作動的に
連結されている。Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. In Fig. 1, numeral 10 indicates a gear housing forming the main body of the power steering device, and this gear housing lO has a pinion shaft (
The output shaft Nl is rotatably supported, and this pinion shaft 11
is meshed with a rack shaft 14 which is slidable in a direction intersecting this. Both ends of the rack shaft 14 are connected to steering wheels via a required steering linkage, and a piston of a power cylinder (not shown) is operatively connected to the rack shaft 14.
前記ギヤハウジング１０には弁ハウジング１８が固定さ
れ、この弁ハウシング１８内にロータリ形サーボ弁２０
が収納されている。かかるロータリ形サーボ弁２０は前
記ビニオン軸ｌｌの軸線を中心として相対回転可能なス
リーブ弁部材２１とロータリ弁部材２２より構成され、
このロータリ弁部材２２は操向ハンドルに連結された操
舵軸（入力軸）２４に一体的に形成されている。操舵軸
２４は前記ビニオン軸１１にトーションバー２５を介し
て可撓的に連結されている。A valve housing 18 is fixed to the gear housing 10, and a rotary type servo valve 20 is installed in the valve housing 18.
is stored. The rotary type servo valve 20 is composed of a sleeve valve member 21 and a rotary valve member 22 that are relatively rotatable about the axis of the binion shaft 11,
This rotary valve member 22 is integrally formed with a steering shaft (input shaft) 24 connected to a steering handle. The steering shaft 24 is flexibly connected to the binion shaft 11 via a torsion bar 25.
前記スリーブ弁部材２１の内周及びロータリ弁部材２２
の外周には、複数のボート溝２１ａ、 ２２ａが円周上
等角度間隔に形成され、スリーブ弁部材２１とロータリ
弁部材２２の相対回転により、供給ボート２６を前記パ
ワーシリンダの画室に接続された給排ボー［８，２９の
一方に連通し、他方を排出ボート２７に連通ずるように
なっている。The inner periphery of the sleeve valve member 21 and the rotary valve member 22
A plurality of boat grooves 21a and 22a are formed at equal angular intervals on the circumference, and the supply boat 26 is connected to the compartment of the power cylinder by relative rotation of the sleeve valve member 21 and the rotary valve member 22. One of the supply and discharge boats [8, 29] communicates with the other, and the other communicates with the discharge boat 27.
本発明は、上記のような動力舵取装置において、操舵軸
（入力軸）２４とビニオン軸（出力軸Ｎ１間に車速等に
応じた電気信号により磁力を発生し、操舵軸２４とビニ
オン軸１１の相対回転力を変化させる電磁反力機構を備
えたものである。In the power steering device as described above, the present invention generates a magnetic force between the steering shaft (input shaft) 24 and the binion shaft (output shaft N1) by an electric signal according to the vehicle speed, etc. It is equipped with an electromagnetic reaction force mechanism that changes the relative rotational force of the
この機構の具体例としては第１図及び第２図で示す通り
、操舵軸２４の外周に永久磁石等の磁化リング４２を固
定し、スリーブ弁部材２１に前記磁化リング４２と対応
する反力付与リング４０を磁化リング４２と若干の隙間
を有して固定する。そして、反力付与リング４０には励
磁コイル４１を巻回した構成である。As a specific example of this mechanism, as shown in FIGS. 1 and 2, a magnetized ring 42 such as a permanent magnet is fixed to the outer periphery of the steering shaft 24, and a reaction force corresponding to the magnetized ring 42 is applied to the sleeve valve member 21. The ring 40 is fixed to the magnetized ring 42 with a slight gap. The reaction force applying ring 40 has a configuration in which an excitation coil 41 is wound around the reaction force applying ring 40.
前記励磁コイル４１への通電手段としては、スリップリ
ング４３と、このスリップリング４３に接触するブラシ
４４とからなり、ブラシ４４に車速等に応じた電気信号
のリード線４５を接続する。The excitation coil 41 is energized by a slip ring 43 and a brush 44 that comes into contact with the slip ring 43. A lead wire 45 for an electric signal corresponding to vehicle speed or the like is connected to the brush 44.
次に上記構成の動作について説明する。供給ポンプより
吐出された圧油の流量を動力舵取装置に必要とする所定
流量に制御し、サーボ弁２０の供給ボート２６に供給す
る。Next, the operation of the above configuration will be explained. The flow rate of the pressure oil discharged from the supply pump is controlled to a predetermined flow rate required for the power steering device, and is supplied to the supply boat 26 of the servo valve 20.
車速か低い状態においては、反力材カリング４０の励磁
コイル４１には通電されず、従って、ハンドル操作によ
り操舵軸２４が回転すると、スリーブ弁部材２１とロー
タリ弁部材２２とが相対回転され、通常の軽い動力舵取
作用となる。When the vehicle speed is low, the excitation coil 41 of the reaction force member culling 40 is not energized. Therefore, when the steering shaft 24 is rotated by operating the steering wheel, the sleeve valve member 21 and the rotary valve member 22 are rotated relative to each other, and the normal This results in a light power steering action.
車速か所定値を越えると、車速に応じた電流が励磁コイ
ル４１に通電される。これにより、反力付与リング４０
は磁化し、対向する永久磁石よりなる磁化リング４２と
の間に磁場ができ、磁力吸引力が発生する。これにより
、スリーブ弁部材２１とロータリ弁部材２２とを相対回
転させるマニアルトルクは車速に応じて増大し、ハンド
ル操作は重（なる。When the vehicle speed exceeds a predetermined value, a current corresponding to the vehicle speed is applied to the exciting coil 41. As a result, the reaction force applying ring 40
is magnetized, a magnetic field is created between the magnetized ring 42 made of an opposing permanent magnet, and a magnetic attraction force is generated. As a result, the manual torque for relatively rotating the sleeve valve member 21 and the rotary valve member 22 increases in accordance with the vehicle speed, and the steering wheel operations become more complicated.
尚、励磁コイル４１に通電する電気信号は、車速の他に
ハンドル操舵角に応じた電流値であってもよい。また、
反力付与リング４０をロータリ弁部材２２側に、磁化リ
ング４２をスリーブ弁部材２１側に固定してもよい。Note that the electric signal applied to the excitation coil 41 may be a current value that corresponds to the steering angle of the steering wheel in addition to the vehicle speed. Also,
The reaction force applying ring 40 may be fixed to the rotary valve member 22 side, and the magnetizing ring 42 may be fixed to the sleeve valve member 21 side.
〈発明の効果〉
以上のように本発明は、動力舵取装置の入力軸と出力軸
間に車速等に応じた電気信号により磁力を発生し、入力
軸と出力軸の相対回転力を変化させる電磁反力機構を設
けたものであるから、従来の油圧反力機構に比較すると
、その制御系は電気信号回路のみとなり、複雑な油圧配
管路並びに油圧制御バルブ類を不要とし、組付は作業の
簡素化及びコストダウンが得られる効果を有している。<Effects of the Invention> As described above, the present invention generates a magnetic force between the input shaft and the output shaft of a power steering device by an electric signal according to the vehicle speed, etc., and changes the relative rotational force between the input shaft and the output shaft. Since it is equipped with an electromagnetic reaction force mechanism, compared to conventional hydraulic reaction force mechanisms, the control system is only an electric signal circuit, eliminating the need for complex hydraulic piping and hydraulic control valves, and assembly is easy. This has the effect of simplifying the process and reducing costs.
第１図は本発明装置を備えた動力舵取装置の一実施例を
示す断面図、第２図は第１図■−■線断面図である。
ｌＯ・・・ギヤハウジング、１１・・・ビニオン軸、２
０・・・サーボ弁、２１・・・スリーブ弁部材、２２・
・・ロータリ弁部材、２４・・・操舵軸、４０・・・反
力付与リング、４１・・・励磁コイル、４２・・・磁化
リング。FIG. 1 is a cross-sectional view showing an embodiment of a power steering device equipped with the device of the present invention, and FIG. 2 is a cross-sectional view taken along the line 1--2 in FIG. lO... Gear housing, 11... Binion shaft, 2
0...Servo valve, 21...Sleeve valve member, 22.
... Rotary valve member, 24 ... Steering shaft, 40 ... Reaction force applying ring, 41 ... Excitation coil, 42 ... Magnetization ring.
Claims (1)
シリンダへの圧油の給排を制御するサーボ弁を備えた動
力舵取装置において、前記入力軸と出力軸間に車速等に
応じた電気信号により磁力を発生し、入力軸と出力軸の
相対回転力を変化させる電磁反力機構を備えて成る動力
舵取装置の操舵力制御装置。In a power steering device equipped with a servo valve that is operated based on relative rotation between an input shaft and an output shaft and controls the supply and discharge of pressure oil to a power cylinder, there is provided a power steering device that is operated based on the relative rotation of an input shaft and an output shaft, and is equipped with a servo valve that controls the supply and discharge of pressure oil to a power cylinder. A steering force control device for a power steering device comprising an electromagnetic reaction force mechanism that generates magnetic force in response to an electric signal and changes the relative rotational force between an input shaft and an output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18291385A JPS6243364A (en) | 1985-08-22 | 1985-08-22 | Steering force control device of power-operated steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18291385A JPS6243364A (en) | 1985-08-22 | 1985-08-22 | Steering force control device of power-operated steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6243364A true JPS6243364A (en) | 1987-02-25 |
Family
ID=16126574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18291385A Pending JPS6243364A (en) | 1985-08-22 | 1985-08-22 | Steering force control device of power-operated steering device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6243364A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106367U (en) * | 1988-01-11 | 1989-07-18 | ||
| JPH0245271A (en) * | 1988-06-27 | 1990-02-15 | General Motors Corp <Gm> | Hydraulic power steering gear |
| EP0375136A2 (en) * | 1988-12-22 | 1990-06-27 | General Motors Corporation | Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus |
| EP0375137A2 (en) * | 1988-12-22 | 1990-06-27 | General Motors Corporation | Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus |
| JPH04208675A (en) * | 1990-11-30 | 1992-07-30 | Nissan Motor Co Ltd | Steering power controller |
| JP2007186012A (en) * | 2006-01-11 | 2007-07-26 | Jtekt Corp | Hydraulic power steering device |
-
1985
- 1985-08-22 JP JP18291385A patent/JPS6243364A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01106367U (en) * | 1988-01-11 | 1989-07-18 | ||
| JPH0245271A (en) * | 1988-06-27 | 1990-02-15 | General Motors Corp <Gm> | Hydraulic power steering gear |
| EP0375136A2 (en) * | 1988-12-22 | 1990-06-27 | General Motors Corporation | Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus |
| EP0375137A2 (en) * | 1988-12-22 | 1990-06-27 | General Motors Corporation | Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus |
| JPH04208675A (en) * | 1990-11-30 | 1992-07-30 | Nissan Motor Co Ltd | Steering power controller |
| JP2007186012A (en) * | 2006-01-11 | 2007-07-26 | Jtekt Corp | Hydraulic power steering device |
| JP4561638B2 (en) * | 2006-01-11 | 2010-10-13 | 株式会社ジェイテクト | Hydraulic power steering device |
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