JP2596707Y2 - Vehicle suspension control device - Google Patents
Vehicle suspension control deviceInfo
- Publication number
- JP2596707Y2 JP2596707Y2 JP1992018665U JP1866592U JP2596707Y2 JP 2596707 Y2 JP2596707 Y2 JP 2596707Y2 JP 1992018665 U JP1992018665 U JP 1992018665U JP 1866592 U JP1866592 U JP 1866592U JP 2596707 Y2 JP2596707 Y2 JP 2596707Y2
- Authority
- JP
- Japan
- Prior art keywords
- vehicle speed
- suspension
- vehicle
- integrated value
- switching
- 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 - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案は、車両用サスペンション
制御装置に関し、特に、運転者の疲労を低減する技術に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle suspension control device, and more particularly to a technique for reducing driver fatigue.
【０００２】[0002]
【従来の技術】従来、車両用サスペンション制御装置と
して、車速センサにより検出された車速に対応してサス
ペンションのばね力特性を切換制御するもの（実願平３
−７８０２５号参照）や、ばね上とばね下間に介装され
るショックアブソーバの減衰力特性を切換調整するもの
（実開平１−１５４９１０号公報参照）等がある。2. Description of the Related Art Conventionally, as a vehicle suspension control device, a suspension control device for switching a spring force characteristic of a suspension in accordance with a vehicle speed detected by a vehicle speed sensor (Japanese Utility Model Application Laid-Open No. HEI 3 (1993) -316).
(See Japanese Unexamined Utility Model Publication No. 1-154910), and those that switch and adjust the damping force characteristics of a shock absorber interposed between a sprung portion and a unsprung portion.
【０００３】[0003]
【考案が解決しようとする課題】しかし、従来の技術で
は、車速や車体の上・下加速度、相対変位等により、サ
スペンションのばね力特性やショックアブソーバの減衰
力特性を切換調整するようにしており、運転時間や走行
距離に対応して同上の切換調整を行うものではないた
め、長時間運転を継続した場合の疲労軽減に有効な技術
ではない。However, in the prior art, the spring force characteristic of the suspension and the damping force characteristic of the shock absorber are switched and adjusted according to the vehicle speed, the vertical acceleration of the vehicle body, the relative displacement, and the like. However, since the switching adjustment is not performed in accordance with the driving time or the traveling distance, it is not an effective technique for reducing fatigue when the driving is continued for a long time.
【０００４】そこで、本考案は上記に鑑みてなされたも
のであり、車両用サスペンション制御に独特の方策を施
すことにより、長時間運転時の疲労軽減を図ることを目
的とする。In view of the above, the present invention has been made in view of the above, and an object of the present invention is to reduce fatigue during long-time driving by applying a unique measure to vehicle suspension control.
【０００５】[0005]
【課題を解決するための手段】本考案の車両用サスペン
ション制御装置は、ばね上とばね下間にショックアブソ
ーバとばねとを並列に設けたサスペンション装置の特性
を可変とする構成の車両用サスペンション制御装置にお
いて、車速を検出する車速検出手段と、車両停止状態か
ら運転を開始してからの運転時間を積算する運転時間積
算手段と、サスペンション特性を柔らかめから硬めに切
り換える切換線を、車速と運転時間の積算値とによって
予め設定したサスペンション特性切換マップであって、
車速と運転時間の積算値との関係が、車速が上昇変化す
るに従って運転時間の積算値が上昇変化する関係に設定
されたサスペンション特性切換マップに基づいて、前記
車速検出手段により検出された車速及び運転時間積算手
段による運転時間の積算値に応じて前記サスペンション
装置の特性を切換制御する制御手段と、を備えて構成し
た。SUMMARY OF THE INVENTION A suspension control device for a vehicle according to the present invention has a structure in which a shock absorber and a spring are provided in parallel between a sprung portion and a unsprung portion to vary the characteristics of the suspension device. in the device, a vehicle speed detecting means for detecting a vehicle speed, or the vehicle stop state
Operation time accumulation means for accumulating the operation time since the start of operation, and switching the suspension characteristics from soft to hard
The switching line to be switched is determined by the vehicle speed and the integrated value of the driving time.
A preset suspension characteristic switching map,
The relationship between the vehicle speed and the accumulated driving time indicates that the vehicle speed
Is set so that the integrated value of the operation time rises and falls as the
Control means for switching the characteristics of the suspension device in accordance with the vehicle speed detected by the vehicle speed detecting means and the integrated value of the driving time by the driving time integrating means based on the obtained suspension characteristic switching map. did.
【０００６】又、前記運転時間を積算する運転時間積算
手段に代えて、車両停止状態から走行を開始してからの
走行距離を積算する走行距離積算手段を備えると共に、
前記制御手段に代えて、サスペンション特性を柔らかめ
から硬めに切り換える切換線を、車速と走行距離の積算
値とによって予め設定したサスペンション特性切換マッ
プであって、車速と走行距離の積算値との関係が、車速
が上昇変化するに従って走行距離の積算値が上昇変化す
る関係に設定されたサスペンション特性切換マップに基
づいて、前記車速検出手段により検出された車速及び走
行距離積算手段による走行距離の積算値に応じて前記サ
スペンション装置の特性を切換制御する制御手段を備え
て構成した。In addition to the driving time integrating means for integrating the driving time, there is provided a traveling distance integrating means for integrating the traveling distance after the vehicle starts running from a stopped state .
Instead of the control means, soften the suspension characteristics
The switch line that switches from stiff to hard is the sum of vehicle speed and mileage
Value and suspension characteristics switching map
And the relationship between the vehicle speed and the integrated value of the mileage is the vehicle speed.
The accumulated value of the mileage increases and changes as
Control means for switching and controlling the characteristics of the suspension device in accordance with the vehicle speed detected by the vehicle speed detecting means and the integrated value of the traveling distance by the traveling distance integrating means based on the suspension characteristic switching map set in such a relationship. Was configured.
【０００７】[0007]
【作用】かかる構成において、車速が検出されると共
に、車両停止状態から運転を開始してからの運転時間或
いは走行距離が積算され、車速及び運転時間或いは走行
距離の積算値に応じて、予め設定したサスペンション特
性切換マップに基づいて、サスペンション装置の特性が
切換制御される。 In this configuration, the vehicle speed is detected , and the driving time or traveling distance from the start of driving from the vehicle stopped state is integrated, and a preset value is set according to the integrated value of the vehicle speed and the driving time or the traveling distance. The switching of the characteristics of the suspension device is performed based on the suspension characteristic switching map .
【０００８】[0008]
【実施例】図１において、ばね上とばね下、即ち、車体
Ａと前側タイヤＦ１，Ｆ２、後側タイヤＲ１，Ｒ２の間
には、ばね１ａ〜１ｄが設置されている。更に、これら
のばね１ａ〜１ｄと並列に減衰力がハード（硬め）／ソ
フト（柔らかめ）の２段階に切り換え可能なショックア
ブソーバ３ａ〜３ｄが配設されている。このショックア
ブソーバ３ａ〜３ｄにおける減衰力はアクチュエータ２
ａ〜２ｄにより切換可能であり、このアクチュエータ２
ａ〜２ｄの駆動制御信号は本考案の制御手段を構成する
制御装置２０から出力される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, springs 1a to 1d are provided between a sprung portion and a unsprung portion, that is, between a vehicle body A and front tires F1, F2 and rear tires R1, R2. Further, shock absorbers 3a to 3d are provided in parallel with the springs 1a to 1d, the damping force of which can be switched between hard (hard) and soft (soft). The damping force of the shock absorbers 3a to 3d is
a to 2d.
The drive control signals a to 2d are output from the control device 20 constituting the control means of the present invention.
【０００９】ここで、前記ショックアブソーバ３ａ〜３
ｄにおける減衰力は、車両の速度と車両停止状態から運
転を開始してからの運転時間の積算値に応じて制御され
る。即ち、前記制御装置２０は、図２に示すように、車
両の速度を検出する車両速度センサ１０と本考案の運転
時間積算手段としての運転時間積算計１１から出力され
る信号の入力手段２０ａと、判定手段２０ｂと、減衰力
切換用のアクチュエータ２ａ〜２ｄへの出力手段２０ｃ
とから構成される。Here, the shock absorbers 3a to 3a
damping force in d is luck from the speed and drive both stopped state of the vehicle
Control is performed according to the integrated value of the operation time after the start of the rotation . That is, as shown in FIG. 2, the control device 20 includes a vehicle speed sensor 10 for detecting the speed of the vehicle and an input means 20a for a signal output from a driving time integrator 11 as the driving time integrating means of the present invention. , Judgment means 20b, and output means 20c to the damping force switching actuators 2a to 2d
It is composed of
【００１０】次に、上記制御装置２０による減衰力切換
制御の内容を図３のフローチャートに基づいて説明す
る。即ち、ステップ１（図ではＳ１と記す、以下同様）
では、車速Ｖと連続運転時間Ｔとを読み込む。ステップ
２では、読み込まれた車速Ｖと運転時間積算値Ｔとに基
づいて、予め車速Ｖと運転時間積算値Ｔとによって設定
されるべきショックアブソーバ３ａ〜３ｄにおける減衰
力をＨ（ハード）とＳ（ソフト）に割り付けたマップを
参照し、減衰力をＨ（ハード）にするのか、Ｓ（ソフ
ト）するのかを選定する。ステップ３では、減衰力がＨ
（ハード）、Ｓ（ソフト）のどちらに選定されたかを判
別し、Ｈ（ハード）に選定されたならば、ステップ４に
進んで、減衰力をＨ（ハード）にするべくアクチュエー
タ２ａ〜２ｄに制御信号を出力し、Ｓ（ソフト）に選定
されたならば、ステップ５に進んで、減衰力をＳ（ソフ
ト）にするべくアクチュエータ２ａ〜２ｄに制御信号を
出力する。尚、図３中のステップ２には、サスペンショ
ン特性を柔らかめ（ソフト）から硬め（ハード）に切り
換える切換線を、車速Ｖと運転時間Ｔの積算値とによっ
て予め設定したサスペンション特性切換マップであっ
て、車速Ｖと運転時間の積算値Ｔとの関係が、車速Ｖが
上昇変化するに従って運転時間の積算値Ｔが上昇変化す
る関係に設定されたサスペンション特性切換マップが開
示されており、このマップに基づいて、上記フローチャ
ートの説明の如く、サスペンション特性が切り換えられ
る。Next, the contents of the damping force switching control by the control device 20 will be described with reference to the flowchart of FIG. That is, step 1 (shown as S1 in the figure, the same applies hereinafter)
Then, the vehicle speed V and the continuous operation time T are read. In step 2, based on the read vehicle speed V and the running time integrated value T, the damping force in the shock absorbers 3a to 3d to be set in advance based on the vehicle speed V and the running time integrated value T is H (hard) and S With reference to the map assigned to (soft), it is determined whether the damping force is H (hard) or S (soft). In step 3, the damping force is H
It is determined which of (hard) and S (soft) has been selected, and if H (hard) has been selected, the process proceeds to step 4 where the actuators 2a to 2d are set so that the damping force becomes H (hard). The control signal is output, and if S (soft) is selected, the process proceeds to step 5, where the control signal is output to the actuators 2a to 2d so that the damping force is set to S (soft). Incidentally, the step 2 in FIG. 3, Suspension
Cut the characteristics from soft (soft) to hard (hard)
The switching line to be changed is determined by the vehicle speed V and the integrated value of the driving time T.
The suspension characteristic switching map set in advance.
The relationship between the vehicle speed V and the integrated value T of the driving time indicates that the vehicle speed V is
As the ascent increases, the integrated value T of the operating time increases and changes.
A suspension characteristic switching map set in such a relationship is disclosed, and the suspension characteristics are switched based on this map as described in the flowchart.
【００１１】尚、上記フローチャートにおいて、各ステ
ップは周期的に繰り返される。かかる構成によると、車
速と運転時間積算値とに基づいてショックアブソーバ３
ａ〜３ｄにおける減衰力を切り換えるようにしたから、
車速が大きくとも、運転時間積算値Ｔが大きい場合、即
ち、連続運転時間が長い場合には、該減衰力をＳ（ソフ
ト）に切り換える制御を行え、長距離運転時の運転者の
疲労軽減を図ることができる。In the above flowchart, each step is repeated periodically. According to this configuration, the shock absorber 3 is set based on the vehicle speed and the integrated operation time.
Since the damping force in a to 3d is switched,
Even if the vehicle speed is high, when the integrated driving time value T is large, that is, when the continuous driving time is long, control for switching the damping force to S (soft) can be performed, and the fatigue of the driver during long distance driving can be reduced. Can be planned.
【００１２】尚、本考案は実施例の構成に限定されるも
のではなく、実用新案登録請求の範囲に基づいて種々の
変更が可能である。例えば、上記実施例においては、シ
ョックアブソーバ３ａ〜３ｄにおける減衰力をＨ（ハー
ド）とＳ（ソフト）の２段階に切り換えるようにした
が、３段階，４段階・・・と切り換えるようにしても構
わない。It should be noted that the present invention is not limited to the configuration of the embodiment, and various changes can be made based on the claims of the utility model registration. For example, in the above embodiment, the damping force of the shock absorbers 3a to 3d is switched between H (hard) and S (soft), but may be switched between three, four,. I do not care.
【００１３】更に、ショックアブソーバ３ａ〜３ｄにお
ける減衰力を切り換える代わりに、サスペンションのば
ね定数を切り換えて、サスペンション特性を切り換える
ように構成しても良い。又、車速センサ及び運転時間積
算計に代えて、車両の走行状態を記録する車載運行記録
計から車速や運転時間積算値の情報を受け取る構成にし
ても良い。Further, instead of switching the damping force in the shock absorbers 3a to 3d, the suspension spring constant may be switched to switch the suspension characteristics. Further, in place of the vehicle speed sensor and the driving time integrator, information of the vehicle speed and the driving time integrated value may be received from an in-vehicle operation recorder that records the running state of the vehicle.
【００１４】更に、本考案は、上記実施例の運転時間積
算計に代えて、車両停止状態から走行を開始してからの
走行距離を積算する走行距離積算手段としての走行距離
積算計を設け、サスペンション特性を柔らかめから硬め
に切り換える切換線を、車速と走行距離の積算値とによ
って予め設定したサスペンション特性切換マップであっ
て、車速と走行距離の積算値との関係が、車速が上昇変
化するに従って走行距離の積算値が上昇変化する関係に
設定されたサスペンション特性切換マップに基づいて、
検出された車速及び走行距離の積算値に応じてサスペン
ション装置の特性を切換制御する構成としても良い。Further, in the present invention, in place of the driving time accumulator of the above embodiment, the driving time from when the vehicle is stopped is started.
Equipped with a mileage accumulator as mileage accumulating means for accumulating mileage , to improve suspension characteristics from soft to hard
The changeover line is switched based on the vehicle speed and the integrated value of the mileage.
Is the suspension characteristic switching map set in advance.
The relationship between the vehicle speed and the accumulated value of the mileage indicates that the vehicle speed
As the integrated value of the mileage changes
Based on the set suspension characteristics switching map,
The configuration may be such that the characteristics of the suspension device are switched and controlled in accordance with the detected vehicle speed and the integrated value of the traveling distance.
【００１５】[0015]
【考案の効果】本考案は以上説明したように、車速を検
出すると共に、車両停止状態から走行を開始してからの
運転時間或いは走行距離を積算し、予め設定したサスペ
ンション特性切換マップ、即ち、サスペンション特性を
柔らかめから硬めに切り換える切換線を、車速と運転時
間或いは走行距離の積算値とによって予め設定したサス
ペンション特性切換マップであって、車速と運転時間或
いは走行距離の積算値との関係が、車速が上昇変化する
に従って運転時間或いは走行距離の積算値が上昇変化す
る関係に設定されたサスペンション特性切換マップに従
ってサスペンション装置の特性を切換制御するようにし
たから、長距離運転時の運転者の疲労軽減を図ることが
できる実用的効果大なるものである。As described above, the present invention detects the vehicle speed, integrates the driving time or running distance from the start of running from the vehicle stopped state, and switches the suspension characteristics set in advance. Map, that is, suspension characteristics
Switching speed from soft to hard, depending on vehicle speed and driving
The suspension set in advance according to the accumulated value of the distance or mileage
It is a pension characteristic switching map, which shows vehicle speed and driving time or
Or the relationship with the mileage integrated value causes the vehicle speed to change
And the integrated value of the driving time or mileage rises and changes according to
Since the switching of the characteristics of the suspension device is controlled in accordance with the suspension characteristic switching map set in such a relationship, the practical effect of reducing the fatigue of the driver during long-distance driving can be enhanced.
【図１】 本考案に係る車両用サスペンション制御装置
の一実施例を示すシステム図FIG. 1 is a system diagram showing an embodiment of a vehicle suspension control device according to the present invention.
【図２】 同上実施例の制御装置の内容を示すブロック
図FIG. 2 is a block diagram showing the contents of the control device of the embodiment.
【図３】 同上実施例の作用を説明するフローチャートFIG. 3 is a flowchart illustrating the operation of the embodiment.
Ａ 車体 Ｆ１ 前側タイヤ Ｆ２ 前側タイヤ Ｒ１ 後側タイヤ Ｒ２ 後側タイヤ １ａ ばね １ｂ ばね １ｃ ばね １ｄ ばね ２ａ アクチュエータ ２ｂ アクチュエータ ２ｃ アクチュエータ ２ｄ アクチュエータ ３ａ ショックアブソーバ ３ｂ ショックアブソーバ ３ｃ ショックアブソーバ ３ｄ ショックアブソーバ １０ 車両速度センサ １１ 運転時間積算計 ２０ 制御装置 A Body F1 Front tire F2 Front tire R1 Rear tire R2 Rear tire 1a Spring 1b Spring 1c Spring 1d Spring 2a Actuator 2b Actuator 2c Actuator 2d Actuator 3a Shock absorber 3b Shock absorber 3c Shock absorber 3d Shock absorber Speed sensor 10 Shock absorber 10 Shock absorber Time accumulator 20 Control device
Claims (2)
とばねとを並列に設けたサスペンション装置の特性を可
変とする構成の車両用サスペンション制御装置におい
て、 車速を検出する車速検出手段と、車両停止状態から運転を開始してからの 運転時間を積算
する運転時間積算手段と、サスペンション特性を柔らかめから硬めに切り換える切
換線を、車速と運転時間の積算値とによって予め設定し
たサスペンション特性切換マップであって、車速と運転
時間の積算値との関係が、車速が上昇変化するに従って
運転時間の積算値が上昇変化する関係に設定された サス
ペンション特性切換マップに基づいて、前記車速検出手
段により検出された車速及び運転時間積算手段による運
転時間の積算値に応じて前記サスペンション装置の特性
を切換制御する制御手段と、 を備えて構成したことを特徴とする車両用サスペンショ
ン制御装置。1. A vehicle suspension control device having a structure in which a shock absorber and a spring are provided in parallel between a sprung portion and a unsprung portion to vary the characteristics of a suspension device, a vehicle speed detecting means for detecting a vehicle speed, and a vehicle stop. An operation time accumulation means for accumulating the operation time since the start of operation from the state, and a switch for switching the suspension characteristics from soft to hard
The replacement line is set in advance based on the vehicle speed and the integrated value of the driving time.
The suspension characteristics switching map shows the vehicle speed and driving
The relationship with the integrated value of time increases as the vehicle speed increases.
Based on the suspension characteristic switching map set in such a manner that the integrated value of the driving time rises and changes , the characteristic of the suspension device according to the vehicle speed detected by the vehicle speed detecting means and the integrated value of the driving time by the driving time integrating means. And a control means for switching control of the vehicle suspension control device.
段に代えて、車両停止状態から走行を開始してからの走
行距離を積算する走行距離積算手段を備えると共に、 前記制御手段に代えて、サスペンション特性を柔らかめ
から硬めに切り換える切換線を、車速と走行距離の積算
値とによって予め設定したサスペンション特性切換マッ
プであって、車速と走行距離の積算値との関係が、車速
が上昇変化するに従って走行距離の積算値が上昇変化す
る関係に設定されたサスペンション特性切換マップに基
づいて、前記車速検出手段により検出された車速及び走
行距離積算手段による走行距離の積算値に応じて前記サ
スペンション装置の特性を切換制御する制御手段を備え
たことを特徴とする請求項１記載の車両用サスペンショ
ン制御装置。2. The vehicle according to claim 1, further comprising a travel distance integrating means for integrating a travel distance from a start of the vehicle from a stopped state , instead of the drive time integrating means for integrating the drive time. Softer suspension characteristics instead of means
The switch line that switches from stiff to hard is the sum of vehicle speed and mileage
Value and suspension characteristics switching map
And the relationship between the vehicle speed and the integrated value of the mileage is the vehicle speed.
The accumulated value of the mileage increases and changes as
Control means for switching and controlling the characteristics of the suspension device in accordance with the vehicle speed detected by the vehicle speed detecting means and the integrated value of the traveling distance by the traveling distance integrating means based on the suspension characteristic switching map set in such a relationship. The vehicle suspension control device according to claim 1, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992018665U JP2596707Y2 (en) | 1992-03-31 | 1992-03-31 | Vehicle suspension control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992018665U JP2596707Y2 (en) | 1992-03-31 | 1992-03-31 | Vehicle suspension control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0580814U JPH0580814U (en) | 1993-11-02 |
| JP2596707Y2 true JP2596707Y2 (en) | 1999-06-21 |
Family
ID=11977912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992018665U Expired - Lifetime JP2596707Y2 (en) | 1992-03-31 | 1992-03-31 | Vehicle suspension control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596707Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100656084B1 (en) * | 2004-12-21 | 2006-12-08 | 주식회사 만도 | Method for controlling damper to prevent rollover of car |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6018725A (en) * | 1983-07-12 | 1985-01-30 | Oki Electric Ind Co Ltd | Device for measuring number of parts utilizing scale |
| JPH066125Y2 (en) * | 1986-09-08 | 1994-02-16 | シャープ株式会社 | Paper guide mechanism |
| JPS63172397A (en) * | 1987-01-12 | 1988-07-16 | 日産自動車株式会社 | Jammed running detector |
-
1992
- 1992-03-31 JP JP1992018665U patent/JP2596707Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0580814U (en) | 1993-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7788011B2 (en) | Braking and drive force control apparatus for a vehicle | |
| US5203584A (en) | Suspension system for a vehicle | |
| US5072392A (en) | Suspension control system for automotive vehicle with feature of discrimination of vehicular driving condition on the basis of variation of lateral acceleration | |
| JPS6337725B2 (en) | ||
| CA2020713A1 (en) | Semi-Active Suspension Control System with Reduced Switching Frequency in Hard and Soft Suspension Characteristics | |
| JP2946511B2 (en) | Shock absorber damping force control device | |
| JPH0287609U (en) | ||
| JP2596707Y2 (en) | Vehicle suspension control device | |
| JP3214126B2 (en) | Suspension control device | |
| JPH0452088Y2 (en) | ||
| JPH04274916A (en) | Vehicle suspension control method | |
| JP3139579B2 (en) | Control device for vehicle suspension | |
| JP3250380B2 (en) | Roll rigidity control device for vehicle | |
| JP2906210B2 (en) | Vehicle suspension device | |
| JP3127823B2 (en) | Vehicle damping force control device | |
| JP2602991Y2 (en) | Suspension damping force control device | |
| JPH0661519U (en) | Vehicle shock absorber | |
| JP3366474B2 (en) | Vehicle electronically controlled suspension | |
| JP7180640B2 (en) | Vehicle damping control device and damping control method | |
| JP2949398B2 (en) | Control device for electronically controlled air suspension vehicle | |
| JP2946391B2 (en) | Air suspension system for vehicles | |
| JPH07186671A (en) | Suspension controller | |
| JP2997309B2 (en) | Vehicle suspension device | |
| JP3163757B2 (en) | Suspension control device | |
| JP2605328Y2 (en) | Cab suspension control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |