JPS643685B2 - - Google Patents
Info
- Publication number
- JPS643685B2 JPS643685B2 JP1277181A JP1277181A JPS643685B2 JP S643685 B2 JPS643685 B2 JP S643685B2 JP 1277181 A JP1277181 A JP 1277181A JP 1277181 A JP1277181 A JP 1277181A JP S643685 B2 JPS643685 B2 JP S643685B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle height
- vehicle
- height
- adjustment
- signal
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 206010000117 Abnormal behaviour Diseases 0.000 description 1
- 102100031024 CCR4-NOT transcription complex subunit 1 Human genes 0.000 description 1
- 102100031025 CCR4-NOT transcription complex subunit 2 Human genes 0.000 description 1
- 101000919674 Caenorhabditis elegans CCR4-NOT transcription complex subunit let-711 Proteins 0.000 description 1
- 101001092183 Drosophila melanogaster Regulator of gene activity Proteins 0.000 description 1
- 101000919672 Homo sapiens CCR4-NOT transcription complex subunit 1 Proteins 0.000 description 1
- 101000919667 Homo sapiens CCR4-NOT transcription complex subunit 2 Proteins 0.000 description 1
- 102100029469 WD repeat and HMG-box DNA-binding protein 1 Human genes 0.000 description 1
- 101710097421 WD repeat and HMG-box DNA-binding protein 1 Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/015—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2400/00—Indexing codes relating to detected, measured or calculated conditions or factors
- B60G2400/25—Stroke; Height; Displacement
- B60G2400/252—Stroke; Height; Displacement vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2401/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60G2401/14—Photo or light sensitive means, e.g. Infrared
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/02—Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2600/00—Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
- B60G2600/08—Failure or malfunction detecting means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
〔発明の目的〕
（産業上の利用分野）
本発明は車体の高さ制御に関し、特に、車体の
高さを車高検出器で検出し、検出車高に対応して
車高調整手段を制御して車高を所定範囲とする自
動車高調整に関する。
（従来の技術）
この種の車高調整は、たとえば米国特許第
4105216号明細書および特公昭54−140318号公報
に開示されている。しかしてこの種の車高調整で
は、車高を迅速かつ正確に検出し、車体重量の変
化や道路状態に原因する車高変動に対して合理的
な速さおよび安定度で車高を制御することが望ま
しい。
（発明が解決しようとする問題点）
しかし、この種の車高調整装置にあつては、タ
イヤ修理やチエン装着の際に車体を持ち上げる
（ジヤツキアツプする）ため、車高検出器は車高
「高」と検出して、車高制御手段が車高を「低」
方向にもつてゆくためにリリーフバルブを作動さ
せるが、車高制御範囲を外れているため、仮に懸
架装置の流体圧が完全に抜かれたとしても、車高
検出器は依然として車高「高」を示す検出信号を
出力するか、あるいは検出器ロータの過剰回転で
「低」、「中」、「高」又は制御上不可解な検出信号
を生じたりする。これにより、リリーフバルブの
開閉が間断したりするでたらめな制御動作が行な
われる。
本発明は、例えば車体のジヤツキアツプのとき
など、車体が異常な挙動を示すときの異常な車高
調整を防止することを目的とする。
〔発明の構成〕
（問題点を解決するための手段）
上記目的を達成するために本発明の車高調整装
置は、車輪に対する車体の高さを調整する調整手
段；車体の高さに応じた信号を発生する車高検出
手段；および、前記車高検出手段の発生する信号
に応じて車輪に対する車体の高さを調整するよう
に前記調整手段を制御するとともに、該信号が中
立車高より大きい値に設定された所定値車高を越
える車高を示すものであるときには該信号に基づ
き前記調整手段の制御を中止する車高制御手段；
を備える。
（作用）
例えばジヤツキアツプなどにより、車高が異常
範囲になると、車高検出手段がこれを示す信号、
すなわち中立車高より大きい値に設定された所定
値車高を越える車高、を示すものとなる。車高制
御手段がこの信号に応答して調整手段の制御を中
止する。したがつて車高調整手段はそこで調整を
停止し、前述の従来の問題点が改善される。
車高が異常範囲にないときには、車高検出手段
の信号に応答して車高制御手段が車輪に対する車
体の高さを調整するように前記調整手段を制御す
るので、車高範囲が適正範囲内にあるときの従来
の車高自動調整と同様に、車高が適値に調整され
る。
本発明の他の目的および特徴は、図面を参照し
た以下の実施例の説明より明らかになろう。
（実施例）
第１図に車高検出器１００の車両への取付態様
の１つを示す。車高検出器１００は、車体フレー
ム１０に固着されており、その回転軸にリンク２
０の一端が結合されており、このリンク２０の他
端はデフアレンシアルギア３０の外ケースに結合
されている。４０が車軸である。
車高検出器１００の縦断面を第２ａ図に、横断
面を第２ｂ〜２ｅ図に示す。車高検出器１００に
おいては、回転軸１０３の先端に、孤状の折り返
し１０４ａ（車高制御用）および１０４ｂ（ジヤツ
キアツプ検出用）を形成した遮光板１０５が固着
されており、他端にリンク２０が固着されてい
る。ベース１０６にはプリント基板１０７が固着
されており、このプリント基板１０７にフオトセ
ンサ１０１と１０２が固着されている。
第２ｂ図は車高が高い状態を示し、第２ｃ図は
車高が中程度の状態を示し、第２ｄ図は車高が低
い状態を示す。
フオトセンサ１０１，１０２は第３図に示すよ
うに発光ダイオードとフオトトランジスタで構成
されており、前者から後者への光を遮光板１０５
の折り返し１０４ａ，１０４ｂが遮断する。フオ
トセンサ１０１および１０２は、第１のコネクタ
２００を介して車高信号処理装置２１０に接続さ
れている。車高信号処理装置２１０は、この実施
例では、抵抗R1，R2、アンドゲートAND１，
AND２およびインバータNOT１，NOT２で構
成されている。遮光用の折り返し１０４ａ，１０
４ｂの形状とフオトセンサ１０１，１０２の配
置、ならびに車高信号処理装置２１０のエンコー
デイングロジツクにより、次の第１表に示す入／
出力信号が得られる。
[Object of the invention] (Industrial application field) The present invention relates to height control of a vehicle body, and in particular, detects the height of the vehicle body with a vehicle height detector, and controls vehicle height adjustment means in accordance with the detected vehicle height. The present invention relates to adjusting the height of a vehicle to keep the vehicle height within a predetermined range. (Prior art) This type of vehicle height adjustment is known, for example, in US Pat.
It is disclosed in the specification of No. 4105216 and Japanese Patent Publication No. 140318/1983. However, this type of vehicle height adjustment detects the vehicle height quickly and accurately, and controls the vehicle height with reasonable speed and stability in response to vehicle height fluctuations caused by changes in vehicle weight or road conditions. This is desirable. (Problem to be solved by the invention) However, with this type of vehicle height adjustment device, the vehicle height detector is used to raise the vehicle body when repairing tires or installing a chain. ” and the vehicle height control means lowers the vehicle height.
The relief valve is actuated to keep the vehicle moving in the same direction, but since it is outside the vehicle height control range, even if the fluid pressure in the suspension system is completely released, the vehicle height detector will still indicate the vehicle height is "high." Otherwise, excessive rotation of the detector rotor may generate a "low", "medium", "high" or incomprehensible detection signal for control purposes. As a result, random control operations such as opening and closing of the relief valve are performed intermittently. An object of the present invention is to prevent abnormal vehicle height adjustment when the vehicle body exhibits abnormal behavior, such as when the vehicle body is jacked up. [Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the vehicle height adjustment device of the present invention has an adjustment means for adjusting the height of the vehicle body with respect to the wheels; Vehicle height detection means for generating a signal; and controlling the adjustment means to adjust the height of the vehicle body relative to the wheels in accordance with the signal generated by the vehicle height detection means, and the signal is greater than the neutral vehicle height. vehicle height control means that stops controlling the adjustment means based on the signal when the signal indicates a vehicle height that exceeds a predetermined vehicle height;
Equipped with. (Function) When the vehicle height falls into an abnormal range due to, for example, a jack up, the vehicle height detection means sends a signal indicating this.
In other words, it indicates a vehicle height that exceeds a predetermined vehicle height set to a value greater than the neutral vehicle height. The vehicle height control means discontinues control of the adjustment means in response to this signal. Therefore, the vehicle height adjusting means stops adjusting at that point, and the above-mentioned conventional problems are improved. When the vehicle height is not within the abnormal range, the vehicle height control means controls the adjustment means to adjust the height of the vehicle body relative to the wheels in response to the signal from the vehicle height detection means, so that the vehicle height range is within the appropriate range. The vehicle height will be adjusted to an appropriate value, similar to the conventional vehicle height automatic adjustment when the vehicle is in the vehicle. Other objects and features of the present invention will become apparent from the following description of embodiments with reference to the drawings. (Example) FIG. 1 shows one manner of mounting the vehicle height detector 100 on a vehicle. The vehicle height detector 100 is fixed to the vehicle body frame 10, and has a link 2 on its rotation axis.
The other end of this link 20 is connected to the outer case of the differential gear 30. 40 is an axle. A vertical cross section of the vehicle height detector 100 is shown in FIG. 2a, and cross sections are shown in FIGS. 2b to 2e. In the vehicle height detector 100, a light shielding plate 105 having arc-shaped folds 104a (for vehicle height control) and 104b (for jack up detection) is fixed to the tip of a rotating shaft 103, and a link 20 is attached to the other end. is fixed. A printed circuit board 107 is fixed to the base 106, and photo sensors 101 and 102 are fixed to this printed circuit board 107. FIG. 2b shows a state where the vehicle height is high, FIG. 2c shows a state where the vehicle height is medium, and FIG. 2d shows a state where the vehicle height is low. The photo sensors 101 and 102 are composed of a light emitting diode and a photo transistor as shown in FIG.
The folds 104a and 104b cut off the signal. Photo sensors 101 and 102 are connected to a vehicle height signal processing device 210 via a first connector 200. In this embodiment, the vehicle height signal processing device 210 includes resistors R 1 , R 2 , AND gates AND1,
It consists of AND2 and inverters NOT1 and NOT2. Light shielding folding 104a, 10
4b, the arrangement of the photo sensors 101 and 102, and the encoding logic of the vehicle height signal processing device 210, the input/output values shown in Table 1 below are determined.
An output signal is obtained.
以上の通り本発明によれば、例えばジヤツキア
ツプなどで車高が異常範囲になるときには、自動
的に車高調整が禁止され、異常かつ無駄な車高調
整が未然に防止される。
As described above, according to the present invention, when the vehicle height falls into an abnormal range due to, for example, a jack up, vehicle height adjustment is automatically prohibited, thereby preventing abnormal and wasteful vehicle height adjustment.
第１図は、本発明の実施例で用いる車高検出器
１００の車両への取付け態様を示す側面図であ
る。第２ａ図は該車高検出器１００の縦断面図で
ある。第２ｂ図、第２ｃ図、第２ｄ図および第２
ｅ図は、第２ａ図の−線断面図である。第３
図は本発明の一実施例の構成を示すブロツク図で
ある。第４ａ図は本発明のもう１つの実施例の構
成を示すブロツク図である。第４ｂ図は第４ａ図
に示すマイクロコンピユータMPUの制御動作を
示すフローチヤートである。
１０：車体フレーム、２０：リンク、３０…デ
フアレンシアルギア、４０：車軸、１００：車高
検出器（車高検出手段）、１０１，１０２：フオ
トセンサ、１０４ａ，１０４ｂ：折り返し、１０
５：遮光板、２００，２３０：コネクタ、２１
０：車高信号処理回路、２２０：車高制御装置
（２１０，２２０：車高制御手段）、３００：リリ
ーフバルブ、４０１：モータ、４０２：コンプレ
ツサ、４０３：リレー、５００：懸架装置（３０
０，４０１，４０２，４０３，５００：調整手
段）、MPU：１チツプマイクロコンピユータ（車
高制御手段）。
FIG. 1 is a side view showing how a vehicle height detector 100 used in an embodiment of the present invention is attached to a vehicle. FIG. 2a is a longitudinal sectional view of the vehicle height detector 100. Figures 2b, 2c, 2d and 2
Figure e is a sectional view taken along the - line in Figure 2a. Third
The figure is a block diagram showing the configuration of an embodiment of the present invention. FIG. 4a is a block diagram showing the structure of another embodiment of the present invention. FIG. 4b is a flowchart showing the control operation of the microcomputer MPU shown in FIG. 4a. 10: Vehicle body frame, 20: Link, 30... Differential gear, 40: Axle, 100: Vehicle height detector (vehicle height detection means), 101, 102: Photo sensor, 104a, 104b: Turning, 10
5: Light shielding plate, 200, 230: Connector, 21
0: Vehicle height signal processing circuit, 220: Vehicle height control device (210, 220: Vehicle height control means), 300: Relief valve, 401: Motor, 402: Compressor, 403: Relay, 500: Suspension device (30
0,401,402,403,500: adjustment means), MPU: 1-chip microcomputer (vehicle height control means).
Claims (1)
段； 車体の高さに応じた信号を発生する車高検出手
段；および 前記車高検出手段の発生する信号に応じて車輪
に対する車体の高さを調整するように前記調整手
段を制御するとともに、該信号が中立車高より大
きい値に設定された所定値車高を越える車高を示
すものであるときには該信号に基づき前記調整手
段の制御を中止する車高制御手段； を備える車高調整装置。[Scope of Claims] 1. Adjustment means for adjusting the height of the vehicle body with respect to the wheels; Vehicle height detection means that generates a signal according to the height of the vehicle body; and Adjustment means for adjusting the height of the vehicle body relative to the wheels; The adjustment means is controlled to adjust the height of the vehicle body, and when the signal indicates a vehicle height exceeding a predetermined vehicle height set to a value greater than the neutral vehicle height, the adjustment means is adjusted based on the signal. A vehicle height adjustment device comprising: vehicle height control means for stopping control of the vehicle height control means;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277181A JPS57126705A (en) | 1981-01-30 | 1981-01-30 | Car height regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1277181A JPS57126705A (en) | 1981-01-30 | 1981-01-30 | Car height regulator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1873688A Division JPS63240415A (en) | 1988-01-29 | 1988-01-29 | Height control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57126705A JPS57126705A (en) | 1982-08-06 |
| JPS643685B2 true JPS643685B2 (en) | 1989-01-23 |
Family
ID=11814660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1277181A Granted JPS57126705A (en) | 1981-01-30 | 1981-01-30 | Car height regulator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57126705A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415929U (en) * | 1987-07-11 | 1989-01-26 | ||
| EP0306003B1 (en) * | 1987-09-04 | 1992-01-15 | Toyota Jidosha Kabushiki Kaisha | Electronic controlled fluid suspension system for controlling roll and pitch of a vehicle body |
| JPH085298B2 (en) * | 1987-09-04 | 1996-01-24 | トヨタ自動車株式会社 | Electronically controlled suspension system |
| JPH07102770B2 (en) * | 1988-06-22 | 1995-11-08 | トヨタ自動車株式会社 | Vehicle height control device |
-
1981
- 1981-01-30 JP JP1277181A patent/JPS57126705A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57126705A (en) | 1982-08-06 |
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