JPH0148162B2 - - Google Patents
Info
- Publication number
- JPH0148162B2 JPH0148162B2 JP59048869A JP4886984A JPH0148162B2 JP H0148162 B2 JPH0148162 B2 JP H0148162B2 JP 59048869 A JP59048869 A JP 59048869A JP 4886984 A JP4886984 A JP 4886984A JP H0148162 B2 JPH0148162 B2 JP H0148162B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- vehicle height
- signal
- wheels
- vehicle
- 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
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
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/033—Spring characteristics, e.g. mechanical springs and mechanical adjusting means characterised by regulating means acting on more than one spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
【発明の詳細な説明】
本発明は自動車の車高調整装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle height adjustment device for an automobile.
自動車の車高懸架装置として、内部に封入した
エアの容積弾性を利用するエアサスペンシヨンを
用いたものにおいては、該エアサスペンシヨンの
エア封入部に外部よりエアを供給することにより
車高を上げ、封入されているエアを外部に排出す
ることにより車高を下げることができる。 In a vehicle height suspension system that uses an air suspension that utilizes the volumetric elasticity of air sealed inside, the vehicle height can be raised by supplying air from the outside to the air sealed part of the air suspension. By discharging the enclosed air to the outside, the vehicle height can be lowered.
そこで従来より、前後左右の全車輪のエアサス
ペンシヨンにそれぞれ車高センサを設け、該各車
高センサのアツプ信号又はダウン信号に基づき各
エアサスペンシヨンの給気及び排気をそれぞれ独
立して行うようにすることにより、常に車両姿勢
を正常な状態に保つようにした車高調整装置が開
発されている（例えば特開昭58−112817号公報参
照）。 Therefore, in the past, vehicle height sensors were installed in the air suspensions of all the front, rear, left, and right wheels, and air intake and exhaust for each air suspension was performed independently based on the up signal or down signal of each vehicle height sensor. A vehicle height adjustment device has been developed that constantly maintains the vehicle posture in a normal state by doing so (see, for example, Japanese Patent Laid-Open No. 112817/1983).
上記のような車高調整装置において、車両走行
中、前後輪の車高センサが同時に同一の信号を発
することがある。 In the vehicle height adjustment device as described above, while the vehicle is running, the vehicle height sensors of the front and rear wheels may simultaneously emit the same signal.
例えば前後輪の車高センサが共にアツプ信号を
同時に発したような場合、その信号によつて前後
輪のエアサスペンシヨンに同時に給気が行われる
と、前後輪の圧力差により、前輪側が先にアツプ
することが多く、前輪側が先にアツプすると後輪
側が前輪側と同レベルにアツプするまでの間、運
転者の前方視線が上向きとなり、運転者に不安感
を与え安全運転上好ましくないばかりか、給気用
のエア圧が不足しているような場合は後輪側エア
サスペンシヨン内のエアが前輪側エアサスペンシ
ヨン内に流れ後輪側がヘルパ突きを起す等の不具
合が発生する。 For example, if the vehicle height sensors of the front and rear wheels both issue up signals at the same time, and air is supplied to the air suspension of the front and rear wheels at the same time based on that signal, the front wheels will be supplied first due to the pressure difference between the front and rear wheels. If the front wheels lift up first, the driver's forward gaze will be directed upwards until the rear wheels reach the same level as the front wheels, making the driver feel uneasy and not only unfavorable for safe driving. If the air pressure for air supply is insufficient, the air in the rear wheel air suspension will flow into the front wheel air suspension, causing problems such as the rear wheel hitting the rear wheel.
又前後輪の車高センサが同時にダウン信号を発
した場合も、同時に排気が行われると、前後輪の
圧力差によつて後輪側エアサスペンシヨンのエア
が前輪側より先に排出し、アツプ信号の場合と同
様運転者の前方視線が上向きとなると言う不具合
を生じる。 Also, if the vehicle height sensors of the front and rear wheels issue a down signal at the same time, if exhaust is performed at the same time, the air in the rear air suspension will be exhausted before the front wheel due to the pressure difference between the front and rear wheels, and the air suspension will be exhausted before the front wheel. Similar to the case of traffic lights, this causes the problem that the driver's line of sight is directed upwards.
本発明は上記のような不具合を解消することを
目的とするもので以下附図実施例を参照して説明
する。 The present invention is aimed at solving the above-mentioned problems, and will be described below with reference to embodiments shown in the accompanying drawings.
図において１はコンプレツサ、２はドライヤ、
３はリザーブタンクで、コンプレツサ１の駆動に
よりエアはドライヤ２及びソレノイドバルブL1
を介してリザーブタンク３内に圧入貯蔵され、前
後左右のエアサスペンシヨンFL，FR，RL，RR
に装備されている車高センサＡ，Ｂ，Ｃ，Ｄの信
号に基づいて、上記リザーブタンク３内に圧入貯
蔵されているエアを各エアサスペンシヨンFL，
FR，RL，RRのエア封入部にそれぞれ供給して
車高を高くしたり或は排気バルブL2を開いて上
記エア封入部内に封入されているエアを外部に排
出して車高を低くしたりすることができるように
なつている。 In the figure, 1 is a compressor, 2 is a dryer,
3 is a reserve tank, and air is supplied to dryer 2 and solenoid valve L 1 by driving compressor 1.
The air suspensions FL, FR, RL, RR are stored under pressure in the reserve tank 3 through the
Based on the signals from vehicle height sensors A, B, C, and D installed in the air suspensions FL and
The vehicle height can be raised by supplying air to the FR, RL, and RR air filling sections, or the vehicle height can be lowered by opening the exhaust valve L2 and discharging the air sealed in the air filling sections to the outside. It is now possible to do things like
L3，L4，L5，L6は各エアサスペンシヨンFL，
FR，RL，RRの各エア封入部への給排気をそれ
ぞれ制御する給排気用ソレノイドバルブである。 L 3 , L 4 , L 5 , L 6 are each air suspension FL,
This is a solenoid valve for air supply and exhaust that controls the air supply and exhaust to each of the FR, RL, and RR air filling sections.
４は圧力センサでリザーブタンク３内のエア圧
が所定値以下になつたときコンプレツサ１の駆動
制御用ソレノイドL7を作動させてコンプレツサ
１を駆動させ、リザーブタンク３内のエア圧を所
定値に保つようになつている。 4 is a pressure sensor which operates the drive control solenoid L7 of the compressor 1 when the air pressure in the reserve tank 3 falls below a predetermined value, thereby driving the compressor 1 and bringing the air pressure in the reserve tank 3 to a predetermined value. I'm learning to keep it.
５はコントロール装置で、該コントロール装置
５は前記車高センサＡ，Ｂ，Ｃ，Ｄの各信号（ダ
ウン信号又はアツプ信号）のインプツトに基づ
き、その信号に適応する各ソレノイドバルブL1
〜6への通電を制御し、例えばダウン信号を発し
た車高センサを装備したエアサスペンシヨンの給
排気用ソレノイドバルブと排気バルブL2を開と
して該エアサスペンシヨンのエアを排出して車高
を下げたり、アツプ信号を発した車高センサを装
備したエアサスペンシヨンの給排気用ソレノイド
バルブとソレノイドバルブL1とを開としてその
エアサスペンシヨンにリザーブタンク３内のエア
を供給して車高を上げたりすると共に、圧力セン
サ４の信号に基づきソレノイドL7への通電を制
御したりするものである。 5 is a control device, and the control device 5 is based on the input of each signal (down signal or up signal) of the vehicle height sensors A, B, C, D, and controls each solenoid valve L 1 adapted to the signal.
~ 6 , for example, opens the air supply and exhaust solenoid valve and exhaust valve L2 of the air suspension equipped with a vehicle height sensor that has issued a down signal, and discharges the air from the air suspension to lower the vehicle height. The vehicle height can be lowered by opening the air supply/exhaust solenoid valve and solenoid valve L1 of the air suspension equipped with the vehicle height sensor that issued the up signal, and supplying the air in the reserve tank 3 to the air suspension. It also controls the energization of the solenoid L 7 based on the signal from the pressure sensor 4.
更に又コントロール装置５には、車高を正常車
高から高車高に切換える切換スイツチ６からの信
号がインプツトされるようになつており、又車速
センサ７からの車速信号もインプツトされるよう
になつており、例えば悪路走行に際して上記切換
スイツチ６をノーマルからハイに切換えることに
より、その信号にてコントロール装置５が各エア
サスペンシヨンに給気すべき信号を発して車両の
車高を高くし、悪路走行時の車体接地等の事故を
防止し得るようになつており、又例えば高速走行
時等は車速センサ７からの信号によつてコントロ
ール装置５が各エアサスペンシヨンのエア封入部
内のエアを外部に排出させるべき信号を発して車
両の車高を下げ高送走行安定性の向上をはかり得
るようになつている。 Furthermore, the control device 5 receives a signal from a changeover switch 6 for changing the vehicle height from a normal vehicle height to a high vehicle height, and also receives a vehicle speed signal from a vehicle speed sensor 7. For example, when driving on a rough road, by switching the changeover switch 6 from normal to high, the control device 5 issues a signal to supply air to each air suspension, raising the height of the vehicle. , it is possible to prevent accidents such as the vehicle body touching the ground when driving on rough roads, and when driving at high speeds, the control device 5 uses the signal from the vehicle speed sensor 7 to control the air filling part of each air suspension. It is designed to issue a signal to discharge air to the outside, thereby lowering the vehicle height and improving high-speed running stability.
尚８は電源、９は電源スイツチを示す。 Note that 8 represents a power source, and 9 represents a power switch.
上記のような車高調整装置を備えた自動車にお
いて、本発明では走行中において前後輪の車高セ
ンサＡ，Ｂ，Ｃ，Ｄが同時に同一の信号を発した
場合、その信号に応じて前後輪のエアサスペンシ
ヨンの給排気作動に優先順位を決め、アツプ信号
の場合は後輪側エアサスペンシヨンRL及びRRの
給排気用ソレノイドバルブL5及びL6を先ず開と
し、後輪側エアサスペンシヨンへの給気完了後、
前輪側エアサスペンシヨンFL及びFRの給排気用
ソレノイドバルブL3及びL4を開いて前輪側エア
サスペンシヨンへの給気を行うようにすると共
に、ダウン信号の場合は前記とは逆に先ず前輪側
エアサスペンシヨンFL及びFRの排気を行つた
後、後輪側エアサスペンシヨンRL及びRRの排気
を行うようにするロジツク回路５１をコントロー
ル装置５に設けたものである。 In a vehicle equipped with the vehicle height adjustment device as described above, in the present invention, when the vehicle height sensors A, B, C, and D of the front and rear wheels simultaneously emit the same signal while the vehicle is running, the front and rear wheels are adjusted according to the signal. Priority is set for the supply and exhaust operation of the air suspension of After completing air supply to
Air supply and exhaust solenoid valves L3 and L4 of the front wheel air suspension FL and FR are opened to supply air to the front wheel air suspension, and in the case of a down signal, contrary to the above, the front wheel The control device 5 is provided with a logic circuit 51 for exhausting the rear air suspensions RL and RR after exhausting the side air suspensions FL and FR.
上記において走行中であるかないかは例えば上
記車速センサ７の車速信号によつて判断する。 In the above, whether or not the vehicle is running is determined based on the vehicle speed signal from the vehicle speed sensor 7, for example.
上記のように構成した本発明によれば、走行中
において前後輪の車高センサが同時に同一の信号
を発した場合、その同一の信号がアツプ信号であ
つた場合は先ず後輪側の給気を行つた後に前輪側
の給気を行い、ダウン信号の場合は先ず前輪側の
排気を行つた後に後輪側の排気を行うようにした
ことにより、給排気作動時前輪側が後輪側より高
くなつて運転者の前方視線が上向きになるような
従来の不具合は完全に防止され、運転時の安全性
向上をはかり得ると共に、リザーブタンクのエア
圧が不足している状態での給気作動時後輪側エア
サスペンシヨン内のエアが前輪側エアサスペンシ
ヨン内に流入して後輪側エアサスペンシヨンにヘ
ルパ突きが発生すると言う従来の問題をも完全に
解消することができるもので、実用上多大の効果
をもたらし得るものである。 According to the present invention configured as described above, when the vehicle height sensors of the front and rear wheels emit the same signal at the same time while driving, and the same signal is an up signal, the air supply to the rear wheel is first After this, the front wheels are supplied with air, and in the case of a down signal, the front wheels are first exhausted, and then the rear wheels are exhausted.As a result, the front wheels are raised higher than the rear wheels when the air supply and exhaust is activated. The conventional problem of the driver's forward line of sight being directed upwards has been completely prevented, improving driving safety and improving air supply when the air pressure in the reserve tank is insufficient. This can completely eliminate the conventional problem of air in the rear wheel air suspension flowing into the front wheel air suspension and causing helper bumps in the rear wheel air suspension. This can have a huge effect.
附図は本発明の実施例を示すエアサスペンシヨ
ンの給排気制御系統説明図である。
１……コンプレツサ、３……リザーブタンク、
５……コントロール装置、５１……ロジツク回
路、７……車速センサ、Ａ，Ｂ，Ｃ，Ｄ……車高
センサ、FL，FR，RL，RR……エアサスペンシ
ヨン。
The accompanying drawing is an explanatory diagram of an air suspension air supply/exhaust control system showing an embodiment of the present invention. 1... Compressor, 3... Reserve tank,
5...Control device, 51...Logic circuit, 7...Vehicle speed sensor, A, B, C, D...Vehicle height sensor, FL, FR, RL, RR...Air suspension.
Claims (1)
れ車高センサを設け、各車高センサのアツプ信号
又はダウン信号に基づき各サスペンシヨンの車高
を上げたり下げたりするコントロール装置を設け
た自動車において、走行中前後輪の車高センサが
同時に同一の信号を発したとき、その信号がアツ
プ信号の場合は後輪側を先にアツプさせた後前輪
側をアツプさせ、又ダウン信号の場合は前輪側を
先にダウンさせた後に後輪側をダウンさせるよ
う、前後輪のアツプ、ダウン作動に優先順位を決
めるロジツク回路を設けたことを特徴とする自動
車の車高調整装置。1. Vehicle height sensors are installed in the suspension sections of the front, rear, left, and right wheels, and a control device is installed that raises or lowers the vehicle height of each suspension based on the up or down signals of each vehicle height sensor. When the vehicle height sensors of the middle and front wheels emit the same signal at the same time, if the signal is an up signal, the rear wheels will be raised first and the rear and front wheels will be raised, and if it is a down signal, the front wheels will be raised. A vehicle height adjustment device for an automobile, characterized in that a logic circuit is provided for determining priority for raising and lowering the front and rear wheels so that the rear wheels are lowered first and then the rear wheels are lowered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4886984A JPS60191810A (en) | 1984-03-14 | 1984-03-14 | Car height adjusting unit for car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4886984A JPS60191810A (en) | 1984-03-14 | 1984-03-14 | Car height adjusting unit for car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60191810A JPS60191810A (en) | 1985-09-30 |
| JPH0148162B2 true JPH0148162B2 (en) | 1989-10-18 |
Family
ID=12815289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4886984A Granted JPS60191810A (en) | 1984-03-14 | 1984-03-14 | Car height adjusting unit for car |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60191810A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01293213A (en) * | 1988-05-20 | 1989-11-27 | Tokico Ltd | vehicle height adjustment system |
| JPH02106419A (en) * | 1988-10-14 | 1990-04-18 | Fuji Heavy Ind Ltd | Automobile height adjustment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59143709A (en) * | 1983-02-03 | 1984-08-17 | Mitsubishi Motors Corp | Level-control device |
-
1984
- 1984-03-14 JP JP4886984A patent/JPS60191810A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60191810A (en) | 1985-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |