JPS5849506A - Car height adjusting unit - Google Patents
Car height adjusting unitInfo
- Publication number
- JPS5849506A JPS5849506A JP56147434A JP14743481A JPS5849506A JP S5849506 A JPS5849506 A JP S5849506A JP 56147434 A JP56147434 A JP 56147434A JP 14743481 A JP14743481 A JP 14743481A JP S5849506 A JPS5849506 A JP S5849506A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle height
- output
- abnormality
- gate
- detection circuit
- 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.)
- Granted
Links
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
- 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
- B60G2600/04—Means for informing, instructing or displaying
-
- 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)
- Testing And Monitoring For Control Systems (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
【発明の詳細な説明】
車体フレームの間の高さを車高検出器で検出し、検川屯
高に対応付けて懸架装置の流体圧を制御して車高を所定
範囲とする車高調整装置今拳轡禍◆銅→Ｈ１齢に関する
。[Detailed Description of the Invention] Vehicle height adjustment that adjusts the vehicle height to a predetermined range by detecting the height between the vehicle body frames with a vehicle height detector and controlling the fluid pressure of the suspension system in correspondence with the height of the vehicle. Apparatus Now Fistful ◆ Copper → Regarding H1 age.
この種の車高調整においては、たとえば米国特許第４１
０５２１６号明細書（１９７８年クラス２８０）に開示
されている如く、車高検出器で車高領域を検出して、車
高調整制御回路で検出信号を処理して車高調整駆動系を
付勢する信号を得て、これを駆動系に与えて、駆動系に
おいて車高が「高」であるときには懸架装置の流体圧を
下げ、「低」であるときには流体圧を高める。しかして
、検出車高が「中」と「高−１の境界付近で振動すると
きの繰り返し流体圧下げ動作を防止するため、また「中
」と「低」の境界付近で振動するときの繰り返し流体圧
上げ動作を防止するため、車高調整制御回路には、一般
的には車高「高」信号処理系と車高「低」信号処理系に
それぞれ１組の立上り遅延回路が含まれており、また、
車体重量が大きいときの、車高をほとんど上昇駆動しえ
ないときの連続コンプレッサ駆動を防止するために、更
に、車高かも早やそれ以下にならないときの連続流体圧
放出（リリーフ弁開）付勢を防止するため、車高調整回
路には、車高隅」信号処理系と車高「低」信号処理系に
それぞれ１組の付勢時限回路が含まれている。In this type of vehicle height adjustment, for example, US Pat.
As disclosed in Specification No. 05216 (1978 Class 280), a vehicle height detector detects a vehicle height region, a vehicle height adjustment control circuit processes a detection signal, and activates a vehicle height adjustment drive system. This signal is applied to the drive system to lower the fluid pressure of the suspension system when the vehicle height is "high" and to increase the fluid pressure when the vehicle height is "low". Therefore, in order to prevent the repeated fluid pressure lowering operation when the detected vehicle height vibrates near the boundary between "medium" and "high-1", and when the detected vehicle height vibrates near the boundary between "medium" and "low", In order to prevent the fluid pressure from increasing, the vehicle height adjustment control circuit generally includes one set of rise delay circuits for the vehicle height "high" signal processing system and the vehicle height "low" signal processing system. Also,
In order to prevent continuous compressor operation when the vehicle height is hardly raised when the vehicle weight is large, it is also equipped with a continuous fluid pressure release (relief valve opens) when the vehicle height does not drop below that level. In order to prevent this from happening, the vehicle height adjustment circuit includes one set of energization time circuits for each of the "vehicle height corner" signal processing system and the vehicle height "low" signal processing system.
ところでこの種の装置は高湿（または低温）で振動が多
い悪環境条件で使用されるため、コネクタ外れ、断線、
ショート、能動素子の不良発生または駆動装置の故障等
を生じ易い。たとえば車高を検知する検出器に異常が発
生した場合には車高上げ制御と車高下げ制御が同時に行
なわれるという異常事態も起こりうる。従来の車高制御
においては異常時の対策が施されていないため運転者は
異常の発生に気がつかないことが多く、そのような場合
には駆動装置の破損等、より大きな故障を生ずることと
なる。By the way, this type of equipment is used in adverse environmental conditions with high humidity (or low temperature) and lots of vibration, so connectors may come off, wires may break, or
Short circuits, active element defects, and drive device failures are likely to occur. For example, if an abnormality occurs in a detector that detects the vehicle height, an abnormal situation may occur in which vehicle height raising control and vehicle height lowering control are performed simultaneously. With conventional vehicle height control, there are no measures taken in the event of an abnormality, so the driver often does not notice that an abnormality has occurred, and in such cases, larger failures such as damage to the drive unit can occur. .
本発明の目的は異常発生時にそれを検知して異常の発生
したことを運転者に認識させる車高調整装置を提供する
ことである。SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle height adjustment device that detects when an abnormality occurs and allows a driver to recognize that an abnormality has occurred.
この目的を達成するため本発明においては異常を検知す
ると表示手段を付勢して異常の表示を行なう。In order to achieve this objective, in the present invention, when an abnormality is detected, the display means is activated to display the abnormality.
以下、図面を参照して本発明の詳細な説明する。Hereinafter, the present invention will be described in detail with reference to the drawings.
まず一実施例の車高検出器１００を説明すると、これは
第１ａ図に示すように車体フレーム１０に固着されてお
り、その回転軸にリンク２０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の断面図を第１ｂ図に示す。車高検出器１００
においては、回転軸１０３の先端に、弧状の折り返し１
０４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１０
７にフォトセンサ１０１と１０２が固着されている。第
１ｂ図の７Ｃ−ＩＣ線断面図ヲ、第１Ｃ図、第１ｄ図お
よび第１ｅ図に示す。First, a vehicle height detector 100 according to an embodiment will be described. As shown in FIG. 1a, this is fixed to a vehicle body frame 10, and one end of a link 20 is connected to its rotating shaft.
The other end of this link 20 is coupled to the outer case of the differential gear 30. 40 is an axle. A cross-sectional view of the vehicle height detector 100 is shown in FIG. 1b. Vehicle height detector 100
, an arc-shaped fold 1 is provided at the tip of the rotating shaft 103.
A light shielding plate 105 having a shape of 04 is fixed thereto, and a link 20 is fixed to the other end. A printed circuit board 107 is fixed to the base 106, and this printed circuit board 10
Photo sensors 101 and 102 are fixed to 7. A sectional view taken along the line 7C-IC in FIG. 1b, FIG. 1C, FIG. 1d, and FIG. 1e show this.
第１Ｃ図は車高が高い状態を示し、第１ｄ図は車高が中
低度の状態を示し、第１ｅ図は車高が低い状態を示す。FIG. 1C shows a state in which the vehicle height is high, FIG. 1D shows a state in which the vehicle height is medium or low, and FIG. 1E shows a state in which the vehicle height is low.
フォトセンサ１０１．１０２はそれぞれ発光ダイオード
とフォ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１０４が遮断する。The photosensors 101 and 102 are each composed of a light emitting diode and a phototransistor, and the fold 104 of the light shielding plate 105 blocks light from the former to the latter.
第２図に、この車高検出器１００に接続されて、懸架装
＠４００の空気圧放出用のリリーフバルブ２４０と、コ
ンプレッサ３０２の付勢用のリレー３０３の開閉制御を
おこなう一実施例車高調整制御装置ＣＣＵを示す。この
車高制御装置ＣＣＵは、車高検出器１００のフォトセン
サ１０１，１０２の検出信号の両者に応答して遅延時間
開始信号を生ずる手段２１０、時限装置２２０、駆動手
段５００を制御する増幅器ＡＭＰＩ、ＡＭＰ２および駆
動系付勢ゲート手段２３０で構成されている。手段２１
０は、この実施例ではノアゲートＮ０Ｒ１で構成されて
おり、車高に応じて次の第１表に示す出力を生ずる。FIG. 2 shows an embodiment of vehicle height adjustment that is connected to the vehicle height detector 100 and controls the opening and closing of a relief valve 240 for releasing air pressure of the suspension @400 and a relay 303 for energizing the compressor 302. The control unit CCU is shown. This vehicle height control device CCU includes a means 210 for generating a delay time start signal in response to both detection signals from photosensors 101 and 102 of the vehicle height detector 100, a timer 220, an amplifier AMPI for controlling the drive means 500, It is composed of AMP2 and drive system energizing gate means 230. Means 21
0 is constituted by a NOR gate N0R1 in this embodiment, and produces the output shown in Table 1 below depending on the vehicle height.
ノアゲートＮ０Ｒ１の出力Ｃの「Ｌ」が遅延時限開始信
号である。The "L" output C of the NOR gate N0R1 is the delay time start signal.
時限装置２２０は、第１のカウンタＣＯＩ、アンドゲー
トＡＮＤＩ、 インバータＮ０ＴＩ 、第２のカウンタ
ＣＯ２および時限出力ゲートとして用いたノアゲー）
Ｎ０Ｒ２で構成されている。カウンタＣ０１はノアゲー
）ＮＯＲＩの出力ＣがＨであるときクリアであり、Ｃが
してインバータＮＯＴ １の出力がＨ（高レベルｒｌＪ
）のときクロックパルスをカウントし、所定数のクロ
ックパルスをカウントすると出力＠Ｑ１をＨとする。Ｑ
、がＨとなると、インバータＮ０ＴＩの出力がＬに反転
するため、カウンタＣＯ１のＥＮＡＢＬＥがＬとなって
カウントを停止し、ノアゲートＮ０Ｒ２の出力はＨとな
り、カウンタＣＯ２においてはクリアが解除されてカウ
ントを開始する。カウンタＣＯ２が所定数のカウントを
すると出力端Ｑ２がＨとなってノアゲー） Ｎ０Ｒ２の
出力がＬとなり、アンドゲートＡＮＤＩがオフとなって
カウンタＣＯ２のカウントアツプが止まる。The timer 220 includes a first counter COI, an AND gate ANDI, an inverter NOTI, a second counter CO2, and a NOAR gate used as a timed output gate.
It is composed of N0R2. Counter C01 is cleared when the output C of NORI (NORI) is H, and the output of inverter NOT 1 is H (high level rlJ).
), the clock pulses are counted, and when a predetermined number of clock pulses are counted, the output @Q1 becomes H. Q
, becomes H, the output of inverter N0TI is inverted to L, so ENABLE of counter CO1 becomes L and stops counting, the output of NOR gate N0R2 becomes H, and counter CO2 is cleared and starts counting. Start. When the counter CO2 counts a predetermined number, the output terminal Q2 becomes H and the output of the N0R2 becomes L, the AND gate ANDI is turned off, and the count-up of the counter CO2 is stopped.
ノアゲートＮ０Ｒ２の出力Ｈが［車高調整駆動系付勢指
示レベルの信号」であり、駆動系付勢ゲート手段２３０
に印加される。The output H of the Noah gate N0R2 is the [vehicle height adjustment drive system energizing instruction level signal], and the drive system energizing gate means 230
is applied to
ゲート手段２３０は、この実施例ではアントゲ−） Ａ
ＮＤ２およびＡＮＤ３で構成されており、ＡＮＤ ２に
はフォトセンサ１０１の車高「高」検出信号ａとＮ０Ｒ
２の付勢指示信号が印加され、ＡＮＤ３にはフォトセン
サ１０２の車高「低」検出信号すとＮＯＲ２の付勢指示
信号が印加され、ＡＮＤ２．ＡＮＤ３は、それぞれ２人
力がＨのときにＨの出力、すなわちリリーフパルプ２４
０開付勢信号（ＡＮＤ２ ）およびコンプレッサ３０２
に駆動指令信号（ＡＮＤ３ ）を生じ、それぞれ増幅器
ＡＭＰ １およびＡＭＰ ２に印すロする。The gate means 230 is an anti-gate device in this embodiment.
It is composed of ND2 and AND3, and AND2 receives the vehicle height "high" detection signal a of the photosensor 101 and N0R.
When the vehicle height "low" detection signal of the photosensor 102 is applied to AND3, the biasing instruction signal of NOR2 is applied to AND2. AND3 is the output of H when the two-man power is H, that is, the relief pulp 24
0 open bias signal (AND2) and compressor 302
A drive command signal (AND3) is generated and applied to amplifiers AMP 1 and AMP 2, respectively.
今車高「中」であると、フォトセンサ１０１および１０
２の出力ａ、 ｂがいずれもＬであるため、Ｎ０ＲＩ
の出力ＣがＨでカウンタＣＯ１はクリアされており、そ
のＱ１出力がしてインバータＮ０ＴＩの出力がＨである
。したがってＣＯｌに与えられるカウントイネーブルは
カウント可を指示するＨで、またカウンタＣＯ２はＮ０
ＴＩの出力Ｈでクリアされており、そのＱ２出力がＬで
ある。ノアゲートＮ０Ｒ２にはＮ０ＴＩのＨが印加され
ているためその出力がＬであり、アントゲ−）ＡＮＤＩ
〜ＡＮＤ３はすべてオフで、リリーフバルブ２４ｏは閉
、ＩＪ Ｌ／＝３０３は開（コンプレッサ３０２停止）
である。If the vehicle height is currently "medium", the photosensors 101 and 10
Since the outputs a and b of 2 are both L, N0RI
The output C of the inverter N0TI is high, and the counter CO1 is cleared, and the output of the inverter N0TI is high. Therefore, the count enable applied to COl is H indicating that counting is possible, and the counter CO2 is N0.
It is cleared by the TI output H, and its Q2 output is L. Since H of N0TI is applied to the NOR gate N0R2, its output is L, and the output is L.
~AND3 are all off, relief valve 24o is closed, IJ L/=303 is open (compressor 302 stopped)
It is.
車高が高になるとａ＝Ｈ，ｂ＝Ｌとなるので、ノアゲル
トＮ０ＲＩの出力ＣがＬとなリカウンタｃｏ１がカウン
トアツプを開始する。その後車高が中になるとａ＝Ｌ、
ｂ＝Ｌとなってカウンタｃｏ１がクリアされる。車高が
高のままであるとカウンタＣＯＩのカウントアツプが進
みその出力端Ｑ、がＨとなる（第１の時限１．）。する
とＮ０ＴＩの出力がＬに転じ、Ｎ０Ｒ２の出力がＨに転
じ、リリーフバルブ２４０が開となり、懸架装置４００
の空気圧が低下し始めると共に、アントゲ−）ＡＮＤＩ
がオンに、ＣＯ２のカウントイネーブルがカウント可Ｈ
に、ＣＯＩのカウントイネーブルがカウント不可りにな
り、カウンタＣ０１はそのままカウントを停止してカウ
ンタＣＯ２がカウントアツプする。When the vehicle height becomes high, a=H and b=L, so the output C of the Norgelt N0RI becomes L and the counter co1 starts counting up. After that, when the vehicle height becomes medium, a=L,
b=L, and the counter co1 is cleared. If the vehicle height remains high, the counter COI continues to count up and its output terminal Q becomes H (first time period 1.). Then, the output of N0TI changes to L, the output of N0R2 changes to H, the relief valve 240 opens, and the suspension system 400
As the air pressure begins to decrease,
is on, CO2 count enable is enabled for counting H
Then, the count enable of COI becomes disabled, the counter C01 stops counting, and the counter CO2 counts up.
その後、車高が中に戻りａ＝Ｌ、ｂ＝Ｌとなると、カウ
ンタＣ０１がクリアされ、Ｎ０ＴＩの出力がＨとなって
ＣＯ２もクリアされ、ノアゲートＮ０Ｒ２の出力がＬと
なってアントゲ−） ＡＮＤＩ、ＡＮＤ２がオフとなり
リリーフバルブ２４０が閉に戻る。After that, when the vehicle height returns to the inside and becomes a=L, b=L, the counter C01 is cleared, the output of N0TI becomes H, CO2 is also cleared, the output of Noah gate N0R2 becomes L, and the output becomes low.ANDI , AND2 is turned off, and the relief valve 240 returns to close.
つまり、リリーフバルブ２４０を開とした後も、車高が
中に戻ると即座にリリーフバルブ２４０が閉とされる。In other words, even after the relief valve 240 is opened, the relief valve 240 is immediately closed when the vehicle height returns to the inside.
車高が高のままであると、カウンタＣＯ２が所定時間（
第２の時限１２）後にＱ２の出力をＨとし、これにより
ノアゲートＮ０Ｒ２の出力なＬとしてアンドゲートＡＮ
Ｄ１．ＡＮＤ２をオフとしてリリーフバルブ２４０を閉
に戻す。依然として車高が高であると、も早やＩＪ Ｉ
Ｊ−フパルブ２４０は開とならない。If the vehicle height remains high, the counter CO2 will remain at a predetermined time (
After the second time period 12), the output of Q2 is set to H, which causes the output of NOR gate N0R2 to be set to L, and the AND gate AN
D1. AND2 is turned off to close the relief valve 240 again. If the vehicle height is still high, it will quickly become IJI.
J-fupal valve 240 does not open.
２５０は第１の異常検出回路であって、トランジスタＴ
ｒｉ 、 エクスクル−シブオアＥＸＲＩおよび抵抗と
からなる回路と、トランジスタＴｒ２＋ イクスクル
ーシブオアＥＸＲ２および抵抗とからなる回路の２回路
からなり、前者は増幅器ＡＭＰＩとリリーフバルブ（電
磁弁）２４０の異常を、後者は増幅器ＡＭＰ２とリレー
３０３の異常を検知する。具体的には前者によって検出
される異常は（１）バルブ２４・０のソレノイド断線（
ｉｉ）バルブ２４０のソレノイドショート（ｌｉｉ）増
幅器ＡＭＰｌの出カシヨードおよび（！い増幅器ＡＭＰ
］の出力オープンであり、それぞれの状態における信
号ｄ、 ｅ、 ｆは第２表のとおりとなる。250 is a first abnormality detection circuit, which includes a transistor T
ri, consists of two circuits: one consisting of an exclusive OR EXRI and a resistor, and the other consisting of a transistor Tr2+ exclusive OR EXR2 and a resistor. detects an abnormality in amplifier AMP2 and relay 303. Specifically, the abnormality detected by the former is (1) solenoid disconnection of valve 24.0 (
ii) Solenoid short circuit of valve 240 (lii) Output of amplifier AMPl and (!
] The output is open, and the signals d, e, and f in each state are as shown in Table 2.
第 ２ 表
（１）および（ｉｉｉ ）の異常はｄがＬのとき、（１
１）および（１ｖ）の異常はｄがＨのとき検知される。The abnormality in Table 2 (1) and (iii) is that when d is L, (1
Abnormalities 1) and (1v) are detected when d is H.
後者によって検出さ１れる異常は（ｖ） ＩＪシレー０
３のコイル断線（ｖｌ）リレー８０３のコイルショー）
（ＶＮ）増幅器ＡＭＰ２の出カシヨードおよび（ＶＮ
ｉ）増幅器ＡＭＰ２の出力オープンであり、それぞれの
状態における信号ｇ、 ｈ、 ｉは第８表のとおりとな
り、（いおよび（Ｖｉｉ）の異常はｇがＬのとき、（ｖ
ｌ）および（ＶＮ）の異常はｇがＨのとき検知される。The abnormality detected by the latter is (v) IJ 0
3 coil disconnection (vl) relay 803 coil show)
(VN) output voltage of amplifier AMP2 and (VN
i) The output of amplifier AMP2 is open, and the signals g, h, and i in each state are as shown in Table 8, and the abnormalities in (i) and (Vii) are when g is L, (v
Abnormalities in l) and (VN) are detected when g is H.
第 ３ 表
カウンタＣＯ２は第２の異常検出回路を兼ねており、こ
れが所定時間以上カウントを継続するとその出力Ｑ２が
Ｈとなり、従って異常検出信号」がＨとなる。アントゲ
−）ＡＮＤ４は第３の異常検出回路である。前記第１表
を参照すると車高検出器］、 ＯＯカらの信号（ａ、ｂ
）は（Ｈ，Ｌ）、（Ｌ、Ｌ）、（Ｌ、Ｈ）の３つの組合
せしか許されておらず、（Ｈ，Ｈ）の状態は車高検出器
］００に異常が生じていることを示す。（ａ、ｂ）が（
Ｈ，Ｈ）になるとアントゲ−） ＡＮＤ４の出力信号即
ち異常検出信号ｋがＨとなる。Table 3 The counter CO2 also serves as a second abnormality detection circuit, and when it continues counting for a predetermined period of time or more, its output Q2 becomes H, and therefore the abnormality detection signal becomes H. AND4 is the third abnormality detection circuit. Referring to Table 1 above, the signals from vehicle height detector], OO car (a, b
) is only allowed in three combinations: (H,L), (L,L), (L,H), and the state of (H,H) indicates that an abnormality has occurred in the vehicle height detector ]00. Show that. (a, b) is (
When the signal becomes H, H), the output signal of AND4, that is, the abnormality detection signal k becomes H.
２６０は表示回路（表示手段）であり、オアゲートＯＲ
Ｉ、ＯＲ４，アントゲ−１−ＡＮＤ６．）ランジスタＴ
ｒ３＋ 電球Ｌ Ｐで構成されている。通常はオアゲ
ー１− ＯＲ１の出力はＬでありアンドゲートＡＮＤ６
の出力はしてある。一方、車高上げ制御もしくは車高下
げ制御が行なわれるとノアゲートＮ０Ｒ２の出力はＨと
なり、オアゲートＯＲ４の出力はＨとなり、トランジス
タＴｒ３がオンし電球Ｌ Ｐが点灯する。車高制御が行
なわれないときノアゲー）ＮＯＲ２の出力はＬであり、
正常時はトランジスタＴｒｓがオフで電球は消灯状態に
ある。260 is a display circuit (display means), which is an OR gate OR
I, OR4, Antoge-1-AND6. ) transistor T
It is composed of r3+ light bulb L P. Normally, the output of OR game 1-OR1 is L and the output of AND gate AND6
The output is shown. On the other hand, when vehicle height raising control or vehicle height lowering control is performed, the output of NOR gate N0R2 becomes H, the output of OR gate OR4 becomes H, transistor Tr3 is turned on, and light bulb LP lights up. When vehicle height control is not performed, the output of NOR2 is L,
Under normal conditions, the transistor Trs is off and the light bulb is off.
ここで異常検出回路のうち少なくとも１つで異常が検知
されると、オアゲー）ＯＲＩの出力がＨとなり、アンド
ゲートＡＮＤ６が開となりクロック発生器からの分周さ
れたクロックパルスがアンドゲートＡＮＤ６．オアゲー
トＯＲ４を通ってトランジスタＴｒ３のベースに印加さ
れる。したがって、トランジスタＴｒ３は間欠的にオン
状態となり、電球ＬＰは点滅して異常が生じたことを表
示する。If an abnormality is detected in at least one of the abnormality detection circuits, the output of ORI becomes H, the AND gate AND6 is opened, and the frequency-divided clock pulse from the clock generator is transmitted to the AND gate AND6. It is applied to the base of the transistor Tr3 through the OR gate OR4. Therefore, the transistor Tr3 is intermittently turned on, and the light bulb LP blinks to indicate that an abnormality has occurred.
第３図に本発明のもう１つの実施例を示す。これにおい
ては、車高上げ付勢最長時間（ｔ３）を車高下げ付勢最
長時間（１２）よりも犬としている。すなわち、時限装
置２２０において時限出力ゲートをＮ０Ｒ２とＮＯＲ３
の２組としてそれぞれ入力端をカウンタＣＯ２のＱｓ
（”ｓ時限）出力端とＱ２ （’２時１□出力端に接続
し、それぞれ出力をアンドゲートＡＮＤ２とＡＮＤ８に
区分して力えるように、インバータＮ０Ｔ２とオアゲー
トＯＲ１で、車高が高のときと低のときのみアンドゲー
トＡＮＤＩをオン可としている。また、第２の異常検出
回路はアントゲ−） ＡＮＤ５とオアゲートＯＲ３を付
加して≠キ、カウンタＣＯ２の出力Ｑ２とＱ３からの信
号を車高下げと車高上げに対応させてこれを選択して異
常検出信号」としている。表示回ｌＮ５２６０’はオア
ゲートＯＲ４を３人力のものとして、アンドゲートＡＮ
Ｄ２およびＡＮＤ３の出力と接続しである。その他の構
成は第２図に示す実施例と同様である。FIG. 3 shows another embodiment of the invention. In this case, the longest time period (t3) for biasing the vehicle height up is longer than the longest time period (12) for biasing the vehicle height lowering. That is, in the timer 220, the timer output gates are set to N0R2 and NOR3.
Qs of the counter CO2 with the input terminal as two sets of
('s time period) output terminal and Q2 ('2 o'clock 1□ output terminal are connected, and inverter N0T2 and OR gate OR1 are connected so that the outputs can be divided and applied to AND gates AND2 and AND8, respectively, when the vehicle height is high. The AND gate ANDI can be turned on only when the outputs Q2 and Q3 of the counter CO2 are turned on by adding AND5 and the OR gate OR3. This is selected in response to vehicle height lowering and vehicle height raising and is used as an abnormality detection signal. Display time lN5260' is ORGATE OR4 as a three-man operation, ANDGATE AN
It is connected to the outputs of D2 and AND3. The rest of the structure is the same as the embodiment shown in FIG.
第４ａ図、第４１）図および第４Ｃ図にそれぞれ表示回
路２６０の他の実施例を示す。第４ａ図は車高側（財）
時に電球を点滅させ、異常時にはこれを点灯するように
構成しである。第４ｂ図は電球をＬＰａ、Ｌｐｂの２つ
とし車高制御時にはＬＰｂを点灯し、異常時にはＬＰａ
を点灯するように構成しである。第４Ｃ図はバイアス電
流によって発光色の変化する発光ダイオードＬ Ｅ Ｄ
を使用して車高制御時と異常時で表示色を変える構成と
してあり、そのため抵抗Ｒ１とＲ２は抵抗値の異なるも
のが使用されている。Other embodiments of the display circuit 260 are shown in FIGS. 4a, 41) and 4c, respectively. Figure 4a is the vehicle height side (goods)
The structure is such that the light bulb flashes at times, and turns on when an abnormality occurs. Figure 4b uses two light bulbs, LPa and Lpb, and when controlling the vehicle height, LPb is lit, and when an abnormality occurs, LPa is lit.
It is configured to light up. Figure 4C shows a light emitting diode L E D whose emission color changes depending on the bias current.
The display color is changed depending on whether the vehicle height is controlled or when an abnormality occurs.For this reason, resistors R1 and R2 with different resistance values are used.
以」−のとおり本発明によれば、異常が生ずるとそれを
検知して異常発生の表示を行なうので、運転者は速やか
に最適な処置をとりうる。As described below, according to the present invention, when an abnormality occurs, it is detected and an indication of the occurrence of the abnormality is displayed, so that the driver can promptly take appropriate measures.
；窮１ ａ図は車高検出器の取付は状態を示す側面図、
第１１）図は車高検出器の縦断面図である。第１Ｃ図、
第１ｄ図および第１ｅ図は第１ｂ図のＩｃ−ｒｃ線断面
図であり、それぞれ異った動作状態を示す。
第２図および第３図は、それぞれ本発明の一実施例を示
す回路図、第４ａ図、第４ｂ図および第４Ｃ図はそれぞ
れ表示手段の実施例を示す回路図である。
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１０１．
１０２：フォトセンサ １０３：回転軸ｌｏ ４ ：
折り曲げ １０５：遮光板１０６：ベース
１０７：プリント基板２１０：遅延時間開始信
号を生ずる手段２２０：時限装置 ２３０：
駆動系付勢ゲート手段Ｎ０Ｒ２、ＮＯＲ３：ノアゲート
（時限出力ゲート〕２４０：ＩＪ！Ｊ−フパルブ
２５０：第１の異常検出回路２６０．２６０’：表示回
路（表示手段）３０１：モータ ３０２：
コンプレツサ３０３：リレ−４００：懸架装置
５００ ：駆動手段 ＡＮＤ１〜ＡＮＤ６
：アンドゲートＮ０ＲＩ〜ＮＯＲ３：ノアゲート
ＡＮＤ４：（第３の異常検出回路）
ＣＯ２：カウンタ（第２の異常検出回路）ＯＲＩ〜ＯＲ
４ニオアゲート
ＥＸＲＩ、ＥＸＲ２：エクスクルーシブオアゲ−１・Ｎ
０ＴＩ、Ｎ０Ｔ２：インバータ ＬＰ、ＬＰａ、ＬＰｂ
：電球ＬＥＤ：発光ダイオード
ＡＭＰＩ 、 ＡＭＰ２ ：増幅器（副脚回路出力段）
ＣＣＵ ：制御回路;Figure 1A is a side view showing how the vehicle height detector is installed.
Figure 11) is a longitudinal sectional view of the vehicle height detector. Figure 1C,
FIG. 1d and FIG. 1e are cross-sectional views taken along the line Ic-rc in FIG. 1b, respectively showing different operating states. 2 and 3 are circuit diagrams each showing an embodiment of the present invention, and FIGS. 4a, 4b, and 4c are circuit diagrams each showing an embodiment of the display means. 10: Vehicle frame 20: Link 30: Differential gear 40: Axle 100: Vehicle height detector 101.
102: Photo sensor 103: Rotation axis lo 4:
Bending 105: Light shielding plate 106: Base
107: Printed circuit board 210: Means for generating a delay time start signal 220: Timing device 230:
Drive system energizing gate means N0R2, NOR3: NOR gate (timed output gate) 240: IJ!J-Fupalb
250: First abnormality detection circuit 260.260': Display circuit (display means) 301: Motor 302:
Compressor 303: Relay 400: Suspension device 500: Drive means AND1 to AND6
: AND gate N0RI~NOR3: NOR gate AND4: (third abnormality detection circuit) CO2: Counter (second abnormality detection circuit) ORI~OR
4 Nior Gate EXRI, EXR2: Exclusive Or Game-1/N
0TI, N0T2: Inverter LP, LPa, LPb
: Light bulb LED : Light emitting diode AMPI, AMP2 : Amplifier (auxiliary leg circuit output stage)
CCU: Control circuit
Claims (5)
器； 車高の上下制御を行なう駆動手段； 車高検出器からの信号に応答して駆動手段を付勢・消勢
する制御回路； 制御回路出力段の入力側と出力側の信号の状態から駆動
手段および制御回路出力段の異常を判別する第］の異常
検出回路、駆動手段の付勢信号が所定の時限以上継続し
て生じたときに異常と判別する第２の異常検出回路、お
よび車高検出器からの検出信号の状態により車高検出器
の異常を判別する第８の異常検出回路のうち少なくとも
１つの異常検出回路；および、 その異常検出出力を受けて異常表示を行なう表示手段； を備える車高調整装置。(1) A vehicle height detector that generates a signal corresponding to the height of the vehicle; A drive means that controls the vehicle height up and down; A control circuit that energizes and deenergizes the drive means in response to signals from the vehicle height detector. ; a fault detection circuit that determines an abnormality in the drive means and the control circuit output stage from the states of signals on the input side and output side of the control circuit output stage; at least one abnormality detection circuit of a second abnormality detection circuit that determines an abnormality when the vehicle height detector is abnormal; and an eighth abnormality detection circuit that determines an abnormality of the vehicle height detector based on the state of the detection signal from the vehicle height detector; A vehicle height adjustment device comprising: and a display means for receiving the abnormality detection output and displaying an abnormality.
は点滅する構成とした前記特許請求の範囲第（１）項記
載の車高調整装置。(2) The vehicle height adjustment device according to claim 1, wherein the display means lights up when the drive means is energized and blinks when an abnormality occurs.
は点灯する構成とした前記特許請求の範囲第（１）項記
載の車高調整装置。(3) The vehicle height adjustment device according to claim 1, wherein the display means blinks when the drive means is energized and lights up when an abnormality occurs.
求の範囲第（１）項、第（２）項または第（３）項記載
の車高調整装置。(4) The vehicle height adjustment device according to claim (1), (2) or (3), wherein the second abnormality detection circuit is a counter.
３の異常検出回路はそれらによって検出される「高」、
「中」、「低」に対応するものを除く信号状態を異常と
判別する構成とした前記特許請求の範囲第（１）項、第
（２）項、第（３）項または第（４）項記載の車高調整
装置。(5) The vehicle height detector has two vehicle height detection means, and the third abnormality detection circuit detects "high" and "high" detected by them.
Claims (1), (2), (3), or (4) have a configuration in which signal states other than those corresponding to "medium" and "low" are determined to be abnormal. Vehicle height adjustment device described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56147434A JPS5849506A (en) | 1981-09-18 | 1981-09-18 | Car height adjusting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56147434A JPS5849506A (en) | 1981-09-18 | 1981-09-18 | Car height adjusting unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5849506A true JPS5849506A (en) | 1983-03-23 |
| JPH0349762B2 JPH0349762B2 (en) | 1991-07-30 |
Family
ID=15430234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56147434A Granted JPS5849506A (en) | 1981-09-18 | 1981-09-18 | Car height adjusting unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5849506A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2541197A1 (en) * | 1982-11-30 | 1984-08-24 | Atsugi Motor Parts Co Ltd | ELECTRONIC CONTROL SYSTEM FOR ADJUSTABLE SHOCK ABSORBERS |
| JPS6121812A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS6121811A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS6121808A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS61137007U (en) * | 1985-02-15 | 1986-08-26 | ||
| JPS62199509A (en) * | 1986-02-28 | 1987-09-03 | Hino Motors Ltd | Ground clearance adjustment device |
| JPS62199510A (en) * | 1986-02-28 | 1987-09-03 | Hino Motors Ltd | Height control device |
| JPS63137036A (en) * | 1986-11-28 | 1988-06-09 | Mazda Motor Corp | Slip control device for vehicle |
| JPS6415929U (en) * | 1987-07-11 | 1989-01-26 | ||
| JPH01103507A (en) * | 1987-10-15 | 1989-04-20 | Mitsubishi Motors Corp | Suspension for vehicle |
| JP2008218945A (en) * | 2007-03-08 | 2008-09-18 | Nitto Electric Works Ltd | Hinge structure of electric and electronic apparatus storing box |
| WO2015197168A1 (en) * | 2014-06-25 | 2015-12-30 | Wabco Gmbh | Compressed air supply system, pneumatic system and method for controlling a compressed air supply system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034318A (en) * | 1973-07-30 | 1975-04-02 | ||
| JPS50102776A (en) * | 1974-01-23 | 1975-08-14 |
-
1981
- 1981-09-18 JP JP56147434A patent/JPS5849506A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034318A (en) * | 1973-07-30 | 1975-04-02 | ||
| JPS50102776A (en) * | 1974-01-23 | 1975-08-14 |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2541197A1 (en) * | 1982-11-30 | 1984-08-24 | Atsugi Motor Parts Co Ltd | ELECTRONIC CONTROL SYSTEM FOR ADJUSTABLE SHOCK ABSORBERS |
| JPS6121812A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS6121811A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS6121808A (en) * | 1984-07-09 | 1986-01-30 | Fuji Heavy Ind Ltd | Ground clearance adjuster of automobile |
| JPS61137007U (en) * | 1985-02-15 | 1986-08-26 | ||
| JPH0451052Y2 (en) * | 1985-02-15 | 1992-12-02 | ||
| JPS62199510A (en) * | 1986-02-28 | 1987-09-03 | Hino Motors Ltd | Height control device |
| JPS62199509A (en) * | 1986-02-28 | 1987-09-03 | Hino Motors Ltd | Ground clearance adjustment device |
| JPS63137036A (en) * | 1986-11-28 | 1988-06-09 | Mazda Motor Corp | Slip control device for vehicle |
| JPS6415929U (en) * | 1987-07-11 | 1989-01-26 | ||
| JPH01103507A (en) * | 1987-10-15 | 1989-04-20 | Mitsubishi Motors Corp | Suspension for vehicle |
| JP2008218945A (en) * | 2007-03-08 | 2008-09-18 | Nitto Electric Works Ltd | Hinge structure of electric and electronic apparatus storing box |
| WO2015197168A1 (en) * | 2014-06-25 | 2015-12-30 | Wabco Gmbh | Compressed air supply system, pneumatic system and method for controlling a compressed air supply system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0349762B2 (en) | 1991-07-30 |
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