JPH0151363B2 - - Google Patents
Info
- Publication number
- JPH0151363B2 JPH0151363B2 JP1873688A JP1873688A JPH0151363B2 JP H0151363 B2 JPH0151363 B2 JP H0151363B2 JP 1873688 A JP1873688 A JP 1873688A JP 1873688 A JP1873688 A JP 1873688A JP H0151363 B2 JPH0151363 B2 JP H0151363B2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle height
- vehicle
- signal
- control means
- adjustment
- 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 13
- 230000002159 abnormal effect Effects 0.000 description 7
- 239000000725 suspension Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 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
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 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
- 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
- B60G2600/07—Inhibiting means
-
- 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、例
えば車高検出器と、その検出信号に基づいて懸架
装置を制御する車高制御手段の間のコネクタが外
れると、あるいは信号線が断線すると、車高制御
手段の信号入力端には、実車高とは異つた車高を
示す誤つた電位あるいは制御上不可解な電位が与
えられるおそれがある。
そこで例えば、断線により車高制御手段に高に
対応する電位が与えられると、車高制御手段がリ
リーフバルブを開とし車高は下がるが、車高制御
手段には依然として高に対応する電位が与えら
れ、仮に懸架装置の流体圧が完全に抜かれたとし
ても、リリーフバルブは依然として開のままとな
る。
仮に、断線により車高制御手段に低に対応する
電位が与えられると、車高制御手段がコンプレツ
サを駆動し車高は上がるが、車高制御手段には依
然として低に対応する電位が与えられコンプレツ
サの駆動が継続し、コンプレツサが過熱する。
仮に、信号線に接と断をランダムに生ずる接続
不良あるいは断線を生じたときには、リリーフバ
ルブの開又はコンプレツサ駆動が間断したりする
でたらめな制御動作が行なわれる。
本発明は、例えばコネクタ外れ又は断線等、車
高検出信号経路の異常時の異常車高調整を防止す
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、車輌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
に応じて車輌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、該信号が前
記車高検出手段からの信号入力経路断線時と同レ
ベルの信号である時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）
これによれば、車高検出手段が正常に車高を示
す信号を発生しこれが正しく車高制御手段に伝わ
つているときには、この信号に対応して車高制御
手段が車高制御をし、車高はある適正値に自動的
に維持される。
車高検出手段の機能異常（内部故障）又は車高
検出信号経路の断線により、車高制御手段に断線
時と同レベルの信号が与えられると、車高制御手
段が車高調整を中止するので、調整手段が停止
し、異常な車高調整動作をすることがなくなる。
したがつて、例えば車高検出手段から車高制御
手段への信号路が断など、車高制御手段の入力が
断線相当の異常のときには、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。すなわち前述の従来の問題点が改善され
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図〜第２ｅ図に示す。車高検出器１０
０においては、回転軸１０３の先端に、弧状の折
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. (Problems to be Solved by the Invention) However, in this type of vehicle height adjustment device, for example, a connector between a vehicle height detector and a vehicle height control means that controls a suspension system based on the detection signal is If the signal line is disconnected or the signal line is disconnected, there is a risk that an erroneous potential indicating a vehicle height different from the actual vehicle height or an incomprehensible potential for control purposes may be applied to the signal input terminal of the vehicle height control means. For example, if a potential corresponding to a high level is applied to the vehicle height control means due to a disconnection, the vehicle height control means opens a relief valve and the vehicle height decreases, but a potential corresponding to a high level is still applied to the vehicle height control means. Even if the suspension system were completely de-pressurized, the relief valve would still remain open. If a potential corresponding to low is applied to the vehicle height control means due to a disconnection, the vehicle height control means will drive the compressor and the vehicle height will rise, but a potential corresponding to low will still be applied to the vehicle height control means and the compressor will continues to run, causing the compressor to overheat. If a connection failure or disconnection occurs that randomly connects and disconnects the signal line, random control operations such as opening of the relief valve or intermittent driving of the compressor are performed. SUMMARY OF THE INVENTION An object of the present invention is to prevent abnormal vehicle height adjustment when a vehicle height detection signal path is abnormal, such as when a connector is disconnected or a wire is disconnected. [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 vehicle; Vehicle height detection means for generating a signal; and controlling the adjustment means to adjust the height of the vehicle body relative to the vehicle in accordance with the signal generated by the vehicle height detection means; and a vehicle height control means for stopping control of the adjustment means based on the signal when the signal is at the same level as when the signal input path from the vehicle is disconnected. (Operation) According to this, when the vehicle height detection means normally generates a signal indicating the vehicle height and this is correctly transmitted to the vehicle height control means, the vehicle height control means performs vehicle height control in response to this signal. However, the vehicle height is automatically maintained at a certain appropriate value. If a signal of the same level as the disconnection is given to the vehicle height control means due to a malfunction (internal failure) of the vehicle height detection means or a disconnection of the vehicle height detection signal path, the vehicle height control means will stop adjusting the vehicle height. , the adjustment means stops, and abnormal vehicle height adjustment operations are no longer performed. Therefore, when the input to the vehicle height control means is abnormal, such as when the signal path from the vehicle height detection means to the vehicle height control means is disconnected, vehicle height adjustment is automatically prohibited and abnormal and wasteful operation is performed. Vehicle height adjustment is prevented. That is, the above-mentioned conventional problems are improved. 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. Vehicle height detector 10
0, 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 the rotating shaft 103, and a link 20 is fixed to the other end. . 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 achieved.
An output signal is obtained.
以上の通り本発明によれば、車高検出手段から
車高制御手段への信号路が断などで車高制御手段
の入力が異常のときには、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 signal path from the vehicle height detection means to the vehicle height control means is disconnected and the input to the vehicle height control means is abnormal, vehicle height adjustment is automatically prohibited, resulting in abnormal and wasteful adjustment. This prevents unnecessary vehicle height adjustments.
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、１０
０……車高検出器（車高検出手段）、１０１，１
０２……フオトセンサ、１０４ａ，１０４ｂ……
折り返し、１０５……遮光板、２００，２３０…
…コネクタ、２１０……車高信号処理回路、２２
０……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（３００，４０１，
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 frame, 20...Link, 30
... Differential gear, 40 ... Axle, 10
0...Vehicle height detector (vehicle height detection means), 101,1
02...Photo sensor, 104a, 104b...
Folding back, 105... Light shielding plate, 200, 230...
... Connector, 210 ... Vehicle height signal processing circuit, 22
0...Vehicle height control device (210, 220...Vehicle height control means), 300...Relief valve, 401...
...Motor, 402...Compressor, 403...
Relay, 500... Suspension device (300, 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輌
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、該信号が前記車高検出手
段からの信号入力経路断線時と同レベルの信号で
ある時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 vehicle; Vehicle height detection means for generating a signal according to the height of the vehicle body; and Vehicle height detection means for generating a signal according to the height of the vehicle body; and controlling the adjusting means based on the signal when the signal is at the same level as when the signal input path from the vehicle height detecting means is disconnected. A vehicle height adjustment device comprising: vehicle height control means for stopping the vehicle height adjustment;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873688A JPS63240415A (en) | 1988-01-29 | 1988-01-29 | Height control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1873688A JPS63240415A (en) | 1988-01-29 | 1988-01-29 | Height control device |
Related Parent Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1277181A Division JPS57126705A (en) | 1981-01-30 | 1981-01-30 | Car height regulator |
| JP1277187A Division JPS63181313A (en) | 1987-01-22 | 1987-01-22 | Vapor phase crystal growth equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63240415A JPS63240415A (en) | 1988-10-06 |
| JPH0151363B2 true JPH0151363B2 (en) | 1989-11-02 |
Family
ID=11979956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1873688A Granted JPS63240415A (en) | 1988-01-29 | 1988-01-29 | Height control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63240415A (en) |
-
1988
- 1988-01-29 JP JP1873688A patent/JPS63240415A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63240415A (en) | 1988-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5000278A (en) | Motorized power steering apparatus | |
| US5844386A (en) | Power steering device | |
| EP0470755B1 (en) | Force sensitive signal device for vehicle brake pedal | |
| CN100393567C (en) | Steering device and steering ratio control method for motor vehicle | |
| KR940004684B1 (en) | Motorized power steering apparatus | |
| EP1162126B1 (en) | Electric power steering system | |
| JPH0151363B2 (en) | ||
| JPS643685B2 (en) | ||
| US4674588A (en) | Electric power steering equipment | |
| US4569411A (en) | Power steering control apparatus | |
| KR950005630A (en) | Differential voice warning device | |
| JPH0128884B2 (en) | ||
| JPH0443423Y2 (en) | ||
| JPH0138682B2 (en) | ||
| JP2537169Y2 (en) | Vehicle control device | |
| JPH0228145Y2 (en) | ||
| JPH0219302Y2 (en) | ||
| JPH0613927B2 (en) | Oil stove electromagnetic pump controller | |
| KR100250030B1 (en) | Steering Neutral Compensator | |
| GB2376820A (en) | Power supply for vehicle auto levelling headlamp control unit | |
| JPS59120572A (en) | Abnormality detecting device in power steering | |
| JPH0313418Y2 (en) | ||
| JPH0262429B2 (en) | ||
| JPS6349047B2 (en) | ||
| JPH07277024A (en) | Differential limiting controller |