JPH0115427B2 - - Google Patents
Info
- Publication number
- JPH0115427B2 JPH0115427B2 JP2126681A JP2126681A JPH0115427B2 JP H0115427 B2 JPH0115427 B2 JP H0115427B2 JP 2126681 A JP2126681 A JP 2126681A JP 2126681 A JP2126681 A JP 2126681A JP H0115427 B2 JPH0115427 B2 JP H0115427B2
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- rack
- pinion gear
- gear
- steering
- 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
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
- B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Power Steering Mechanism (AREA)
Description
【発明の詳細な説明】
本発明は自動車のラツクピニオンギヤー式ステ
アリングの操舵トルクを検出する装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for detecting steering torque of a rack and pinion gear type steering of an automobile.
従来、この種の検出装置はステアリングシヤフ
トに例えば歪みゲージのロードセルを取付け、こ
のゲージからの出力を操舵トルクとして取出すよ
うにしていた。しかしながらこのような従来の装
置では該ステアリングシヤフトが回転するため、
可動部よりの電気信号の取り出しが複雑になる欠
点があつた。 Conventionally, in this type of detection device, a load cell, such as a strain gauge, is attached to the steering shaft, and the output from this gauge is taken out as steering torque. However, in such conventional devices, since the steering shaft rotates,
This had the disadvantage that extracting electrical signals from the movable part was complicated.
本発明の目的は上記の如き従来装置の欠点を改
善したラツクピニオンギヤー式ステアリングの操
舵トルク検出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 steering torque detection device for a rack and pinion gear type steering system which improves the drawbacks of the conventional devices as described above.
以下、本発明を添付図面に示された実施例につ
いて詳細に説明する。 Hereinafter, the present invention will be described in detail with reference to embodiments illustrated in the accompanying drawings.
第１図には自動車における通常のラツク・ピニ
オンギヤーの噛合部が示してある。ピニオンギヤ
ー１はベアリング２によつてケーシング３に回転
自在に支承されその一端にはステアリングシヤフ
ト４が一体に設けられている。このシヤフトには
図示しないステアリングホイールが固定され、従
つてこのステアリングホイールが回転すると、ピ
ニオンギヤーが回転する。このピニオンギヤーと
噛合うラツクギヤー５はピニオンギヤーと反対側
の背面即ち後側面をガイド６によつて摺動自在に
受けられている。このガイドはキヤツプ７との間
に設けられた弾性体８によつて常時ラツクギヤー
をピニオンギヤーに向けて押圧している。キヤツ
プ７はケーシング３にねじ結合されている。 FIG. 1 shows the meshing portion of a conventional rack and pinion gear in an automobile. The pinion gear 1 is rotatably supported by a casing 3 by a bearing 2, and a steering shaft 4 is integrally provided at one end of the pinion gear 1. A steering wheel (not shown) is fixed to this shaft, so when the steering wheel rotates, the pinion gear rotates. A rack gear 5, which meshes with the pinion gear, is slidably received by a guide 6 on the back side, that is, the rear side, on the opposite side from the pinion gear. This guide constantly presses the rack gear toward the pinion gear by means of an elastic body 8 provided between the guide and the cap 7. The cap 7 is screwed to the casing 3.
本発明に係るセンサ手段１０はラツクギヤーの
後方即ちピニオンギヤーから逃げる方向の変位を
検出するセンサ１１とこのセンサにラツクギヤー
の該変位を伝える伝達体１２とから成つている。
センサ１１は例えばキヤツプ７に設けられた凹孔
７ａの中に収容され適宜の手段（図示せず）によ
つて固定されている。伝達体１２は図示の実施例
では剛性の棒から成りラツクギヤーの後面に他端
はセンサの面に接触している。 The sensor means 10 according to the present invention consists of a sensor 11 for detecting displacement of the rack gear in the rearward direction, that is, in a direction away from the pinion gear, and a transmitting body 12 for transmitting the displacement of the rack gear to the sensor.
The sensor 11 is accommodated, for example, in a recessed hole 7a provided in the cap 7 and fixed by appropriate means (not shown). In the illustrated embodiment, the transmission body 12 consists of a rigid rod whose other end is in contact with the rear surface of the rack gear and the surface of the sensor.
センサー１１は通常の感圧半導体センサあるい
は抵抗歪みセンサー等でよい。他の形態として第
２図に示す実施例では加圧抵抗ゴム２０が用いら
れ、第３図に示す実施例では差動トランス３０が
用いられている。 The sensor 11 may be a conventional pressure sensitive semiconductor sensor or a resistive strain sensor. As another form, a pressurized resistance rubber 20 is used in the embodiment shown in FIG. 2, and a differential transformer 30 is used in the embodiment shown in FIG.
センサからの出力は図示しない簡単な電気回路
によつて検出される。また渦電流を用いた近接セ
ンサ、或は光学的ホトセンサ等でもよい。 The output from the sensor is detected by a simple electrical circuit (not shown). Alternatively, a proximity sensor using eddy current or an optical photosensor may be used.
上記構成において、ステアリングホイールを操
舵のため左右いずれかに回転すると、ピニオンギ
ヤー１が回転しラツク５に車輪（図示せず）から
の荷重が加わる。すると、ラツクギヤーは後方即
ち矢印で示す方向に逃げる。このときの変位がセ
ンサで検出される。そしてこの出力が操舵トルク
として検出される。 In the above configuration, when the steering wheel is rotated to the left or right for steering, the pinion gear 1 rotates and a load from the wheels (not shown) is applied to the rack 5. The rack gear then escapes backwards, ie in the direction indicated by the arrow. The displacement at this time is detected by a sensor. This output is then detected as steering torque.
この操舵トルクは例えばパワーステアリングの
オイルポンプの回転又は油路の制御として用いら
れる。 This steering torque is used, for example, to control the rotation of an oil pump or an oil passage for power steering.
本発明によれば、ラツクギヤーの背面に発生す
る後方向の負荷変位を無回転部のギヤーケーシン
グ内で固定したセンサにより検出することができ
るから、機械的に摩耗する部分がなく全体の構造
がコンパクトであり且つ耐久性に優れる効果等が
得られる。 According to the present invention, the rearward load displacement generated on the back side of the rack gear can be detected by a sensor fixed within the gear casing of the non-rotating part, so there is no mechanically worn part and the overall structure is compact. In addition, effects such as excellent durability can be obtained.
第１図は本発明に係る装置の構成断面図、第２
図および第３図はセンサの他の実施例を示す断面
図である。
１……ピニオンギヤー、５……ラツクギヤー、
１０……センサ手段、１１，２０，３０……セン
サ、１２……伝達体。
FIG. 1 is a cross-sectional view of the structure of the device according to the present invention, and FIG.
3 and 3 are cross-sectional views showing other embodiments of the sensor. 1...Pinion gear, 5...Rack gear,
10...Sensor means, 11, 20, 30... Sensor, 12... Transmission body.
Claims (1)
て、ピニオンギヤーを介しラツクギヤーに働く負
荷時、該ラツクギヤーの背面に生じる圧接変位を
操舵トルクとして検出するセンサ手段を備えてい
ることを特徴とするラツクピニオンギヤー式ステ
アリングの操舵トルク検出装置。 ２ 前記センサ手段はラツクギヤーの後側背面に
配置されたセンサと該センサにラツクの変位を伝
達する伝達体とから成る特許請求の範囲第１項記
載の装置。 ３ 前記センサはラツクギヤーに働く背面負荷の
変位を面圧に検出することを特徴とする特許請求
の範囲第２項記載の装置。[Scope of Claims] 1. A rack and pinion gear type steering system, characterized in that the rack is equipped with a sensor means for detecting, as a steering torque, a pressure displacement generated on the rear surface of the rack gear when a load is applied to the rack gear via the pinion gear. Steering torque detection device for pinion gear type steering. 2. The device according to claim 1, wherein said sensor means comprises a sensor disposed on the rear rear surface of the rack gear and a transmitting body for transmitting the displacement of the rack to the sensor. 3. The device according to claim 2, wherein the sensor detects the displacement of the back load acting on the rack gear in terms of surface pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2126681A JPS57138470A (en) | 1981-02-16 | 1981-02-16 | Steering torque detector for rack pinion gear type steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2126681A JPS57138470A (en) | 1981-02-16 | 1981-02-16 | Steering torque detector for rack pinion gear type steering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57138470A JPS57138470A (en) | 1982-08-26 |
| JPH0115427B2 true JPH0115427B2 (en) | 1989-03-17 |
Family
ID=12050296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2126681A Granted JPS57138470A (en) | 1981-02-16 | 1981-02-16 | Steering torque detector for rack pinion gear type steering |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57138470A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4422385C2 (en) * | 1994-06-27 | 1996-05-09 | Daimler Benz Ag | Hydraulic power steering |
| KR20000013910A (en) * | 1998-08-14 | 2000-03-06 | 에릭 발리베 | Yoke tester of starting motor |
| KR100369083B1 (en) * | 1999-11-23 | 2003-01-24 | 주식회사 만도 | Space measuring ASS'Y of support yoke for lack-bar of steering gear for car |
| EP1892172B1 (en) | 2006-08-21 | 2009-09-16 | JTEKT Corporation | Steering apparatus |
| JP4899716B2 (en) * | 2006-08-21 | 2012-03-21 | 株式会社ジェイテクト | Steering device |
-
1981
- 1981-02-16 JP JP2126681A patent/JPS57138470A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57138470A (en) | 1982-08-26 |
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