JPS6397411A - Suspension device - Google Patents

Suspension device

Info

Publication number
JPS6397411A
JPS6397411A JP24393186A JP24393186A JPS6397411A JP S6397411 A JPS6397411 A JP S6397411A JP 24393186 A JP24393186 A JP 24393186A JP 24393186 A JP24393186 A JP 24393186A JP S6397411 A JPS6397411 A JP S6397411A
Authority
JP
Japan
Prior art keywords
vehicle speed
vehicle height
front side
toe
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.)
Pending
Application number
JP24393186A
Other languages
Japanese (ja)
Inventor
Masaru Kato
優 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP24393186A priority Critical patent/JPS6397411A/en
Publication of JPS6397411A publication Critical patent/JPS6397411A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00Resilient 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
    • B60G17/015Resilient 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

PURPOSE:To improve stability at high speeds and direction change characteristic at low speeds with a suspension device capable of changing toe characteristics by making a ground clearance greater, a front side bump-in, and a rear side bump-out at the time of low speeds, and reversing them at the time of high speeds. CONSTITUTION:To controller 2, receiving a vehicle speed signal from a vehicle speed sensor 1, compares the signal with a preset vehicle speed. When a vehicle speed is higher than the preset value, a signal for decreasing a ground clearance is outputted and a ground clearance adjustment device is driven via drivers 31 through 34 and actuators 41 through 44 to decrease the ground clearance. This makes a reference position of a suspension device go up. Since this discriminates a pump from a rebound, driving stability is improved. At low speeds on the contrary, the ground clearance is increased and the reference position is lowered. Accordingly, an inner wheel tends to toe-out and an outer wheel to toe-in on the front side at the time of turning while on the rear side the tendency becomes opposite. As a result, direction changing characteristic is improved.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、走行速度の高低により車高を上下してトー特
性を変化させるサスペンション装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a suspension device that changes toe characteristics by raising and lowering a vehicle height depending on the speed of the vehicle.

(従来の技術) 第7図は、従来のサスペンション装置のフロント側のト
ー特性を示した図、第8図は、同従来例装置のリア側の
トー特性を示した図である。
(Prior Art) FIG. 7 is a diagram showing the front side toe characteristics of a conventional suspension device, and FIG. 8 is a diagram showing the rear side toe characteristics of the conventional suspension device.

従来のサスペンション装置は、安定性をよくするために
、車輪が〉くツブ時にフロント側でトーアウト(第7図
)、リア側でトーイン(第8図)するように設定されて
いた。
In order to improve stability, conventional suspension systems are set so that when the wheels are bent, the front side toes out (Fig. 7) and the rear side toes in (Fig. 8).

(発明が解決しようとする問題点) 第9図は、従来のサスペンション装置の旋回時のトー特
性を示した図である。
(Problems to be Solved by the Invention) FIG. 9 is a diagram showing toe characteristics of a conventional suspension device during turning.

前述のようなサスペンション装置では、安定性は向上さ
せることができるが、第9図の矢印方向に旋回する場合
に、フロント側では、内輪(リバウンド側)がトーイン
し、外輪(バンプ側)がト−アウトし、リア側では、内
輪(リバウンド側)がトーアウトし、外輪(バンブ側)
がトーインすることになり、回頭性が犠牲になっていた
The suspension device described above can improve stability, but when turning in the direction of the arrow in Figure 9, on the front side, the inner wheel (rebound side) toe-in and the outer wheel (bump side) toe-in. - On the rear side, the inner wheel (rebound side) toes out and the outer wheel (bump side)
This resulted in toe-in, and the ability to turn was sacrificed.

本発明の目的は、車高調整装置を利用することにより、
高速時には安定性を、低速時には回頭性を向上させるこ
とができるサスペンション装置を提供することである。
The purpose of the present invention is to achieve the following by using a vehicle height adjustment device:
It is an object of the present invention to provide a suspension device capable of improving stability at high speeds and improving turning performance at low speeds.

(問題点を解決するための手段) 前記目的を達成するために本考案によるサスペンション
装置は、基準位置からのバンブまたはリバウンドに応じ
て、車輪がバンブ時にフロント側がトーアウト、リア側
がトーインし、リバウンド時にフロント側がトーイン、
リア側がトーアウトする特性のサスペンション装置にお
いて、車両の走行車速を検出する車速センサと、前記車
速センサからの車速信号が設定車速以上のときには車高
を上げる旨の車高調整信号を出力し、車速信号が設定車
速以下のときには車高を下げる旨の車高調整信号を出力
するコントローラと、前記コントローラからの車高調整
信号により車高を上下して前記基準位置を変化させる車
高調整装置とからなり、低速時には車高を上げてフロン
ト側がハンプイン、リア側がバンブアウトシ、高速時に
は車高を下げてフロント側がバンブアウト、リア側がバ
ンブインするように構成されている。
(Means for Solving the Problems) In order to achieve the above object, the suspension device according to the present invention has a suspension device according to the bump or rebound from the reference position.When the wheel bumps, the front side toes out and the rear side toes in. Toe-in on the front side,
In a suspension device having a characteristic of toe-out on the rear side, a vehicle speed sensor detects the traveling speed of the vehicle, and when a vehicle speed signal from the vehicle speed sensor is equal to or higher than a set vehicle speed, a vehicle height adjustment signal is output to raise the vehicle height, and the vehicle speed signal is output. The vehicle comprises a controller that outputs a vehicle height adjustment signal to lower the vehicle height when the vehicle speed is less than a set vehicle speed, and a vehicle height adjustment device that changes the reference position by raising or lowering the vehicle height in response to the vehicle height adjustment signal from the controller. At low speeds, the vehicle height is raised so that the front side humps in and the rear side bumps out.At high speeds, the vehicle height is lowered and the front side bumps out and the rear side bumps in.

(実施例) 以下、図面等を参照して、実施例について本発明の詳細
な説明する。
(Example) Hereinafter, the present invention will be described in detail with reference to the drawings and the like.

第1図は、本発明によるサスペンション装置の実施例を
示したブロック図、第2図は、同実施例装置の概要を示
した図、第3図は、同実施例装置に使用されるコントロ
ーラの動作を説明するための流れ図、第4図は、同実施
例装置のフロント側のトー特性を示した図、第5図は同
実施例装置のリア側のトー特性を示した図、第6図は、
同実施例装置の旋回時のトー特性を示した図である。
FIG. 1 is a block diagram showing an embodiment of the suspension device according to the present invention, FIG. 2 is a diagram showing an outline of the device of the embodiment, and FIG. 3 is a diagram of the controller used in the device of the embodiment. A flowchart for explaining the operation, FIG. 4 is a diagram showing the front side toe characteristics of the same embodiment device, FIG. 5 is a diagram showing the rear side toe characteristics of the same embodiment device, and FIG. 6 teeth,
It is a figure showing the toe characteristic at the time of turning of the same Example device.

第1図において、1は車速センサ、2はコントローラ、
3はドライバ、4はアクチュエータである。
In FIG. 1, 1 is a vehicle speed sensor, 2 is a controller,
3 is a driver, and 4 is an actuator.

車速センサ1は、車両の走行速度を検出するためのセン
サであり、例えば、回転部分に連動するマグネットによ
りオンオフして車速と比例する車速信号を出力するリー
ドスイッチ式のセンサが用いられている。車速センサ1
の出力は、コントローラ2に接続されている。
The vehicle speed sensor 1 is a sensor for detecting the running speed of the vehicle, and for example, a reed switch type sensor is used that is turned on and off by a magnet linked to a rotating part and outputs a vehicle speed signal proportional to the vehicle speed. Vehicle speed sensor 1
The output of is connected to the controller 2.

コントローラ2では、第3図に示した流れ図に従って、
車高信号を出力するためのものであり、その出力は、ド
ライバ31〜34を介して、アクチュエータ41〜44
に接続されている。
In the controller 2, according to the flowchart shown in FIG.
It is for outputting a vehicle height signal, and the output is sent to actuators 41 to 44 via drivers 31 to 34.
It is connected to the.

アクチュエータ41〜44は、第2図に示した車高調整
装置51〜54を駆動するためのものである。車高調整
装置51〜54は、公知の手段により車高を上下する装
置であり、51.52はフロント側、53.54はリア
側の装置を示している。
The actuators 41 to 44 are for driving vehicle height adjustment devices 51 to 54 shown in FIG. 2. The vehicle height adjustment devices 51 to 54 are devices for raising and lowering the vehicle height by known means, and 51.52 indicates a front side device, and 53.54 indicates a rear side device.

次に、第2図の流れ図を参照して、本発明の詳細な説明
する。
Next, the present invention will be described in detail with reference to the flowchart of FIG.

コントローラ2は、車速センサ1からの車速信号■を入
力する(101)。
The controller 2 inputs the vehicle speed signal ■ from the vehicle speed sensor 1 (101).

次に、この車速Vが、設定車速■5以上が否かを判断す
る(102)。
Next, it is determined whether the vehicle speed V is equal to or higher than the set vehicle speed ■5 (102).

車速Vが設定車速71以上の場合には、車高を下げる信
号を出力する(103)。この信号が発せられると、車
高調整装置51〜54により車高が下げられ、サスペン
ションの基準位置が上がることになり、第4図および第
5図の破線の位置を基準にしてバンブかリバウンドかを
判断することになる。このため、高速時には従来と同様
に走行の安定性が向上することになる。
If the vehicle speed V is equal to or higher than the set vehicle speed 71, a signal to lower the vehicle height is output (103). When this signal is issued, the vehicle height is lowered by the vehicle height adjustment devices 51 to 54, and the reference position of the suspension is raised. will be judged. Therefore, at high speeds, running stability is improved as in the past.

一方、車速■が設定車速71以上でない場合には、車高
を上げる信号を出力する(104)。この信号が発せら
れると、車高調整装置51〜54により車高が上げられ
、サスペンションの基準位置が下がることになり、第4
図および第5図の実線の位:8を基準にしてバンブかリ
バウンドかを判l折することになる。
On the other hand, if the vehicle speed ■ is not equal to or higher than the set vehicle speed 71, a signal to raise the vehicle height is output (104). When this signal is issued, the vehicle height is raised by the vehicle height adjustment devices 51 to 54, and the reference position of the suspension is lowered.
Bump or rebound is judged based on the solid line position: 8 in the figures and Figure 5.

ごのため、旋回時には、第6図に示すように、矢印方向
に旋回する場合に、フロント側では、内輪(リバウンド
側)が1−一アウドし、外輪(バンブ側)がトーインし
、リア側では、内(・な(リハウンド側)がトーアウト
し、外輪(バンプ側)がトーインすることになり、回頭
性は極めてよくなることがわかる。
Therefore, when turning, as shown in Figure 6, when turning in the direction of the arrow, on the front side, the inner wheel (rebound side) moves 1-1, the outer wheel (bump side) toes in, and the rear side Now, it can be seen that the inner (・na) (rehound side) toes out and the outer ring (bump side) toes in, resulting in extremely good turning performance.

なお、本発明によるサスペンション装置は、車高調整装
置が備わっている重両では、新たな装置を追加すること
なく、実施することが可能である。
Note that the suspension device according to the present invention can be implemented in a heavy vehicle equipped with a vehicle height adjustment device without adding a new device.

(発明の効果) 以上詳しく説明したように、本発明によれば、高速時に
は、車高を下げることによりフロント側がバンプアウト
、リア側がバンプインになるので、高速時の安定性を維
持でき、低速時には車高を上げることによりフロント側
がバンプアウト、リア側がバンプアウトになるので、旋
回時の回頭性を向上させることができるという効果があ
る。
(Effects of the Invention) As explained in detail above, according to the present invention, at high speeds, by lowering the vehicle height, the front side bumps out and the rear side bumps in, so stability at high speeds can be maintained, and at low speeds, the front side bumps out and the rear side bumps in. By raising the vehicle height, the front side bumps out and the rear side bumps out, which has the effect of improving turning performance when turning.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、本発明によるサスペンション装置の実施例を
示したブロック図、第2図は、同実施例装置の概要を示
した図、第3図は、同実施例装置に使用されるコントロ
ーラの動作を説明するための流れ図、第4図は、同実施
例装置のフロント側のトー特性を示した図、第5図は同
実施例装置のリア側のトー特性を示した図、第6図は、
同実施例装置の旋回時のトー特性を示した図である。 第7図は、従来のサスペンション装置のフロント側のト
ー特性を示した図、第8図は、同従来例装置のリア側の
トー特性を示した図である。 第9図は、従来のサスペンション装置の旋回時のトー特
性を示した図である。 1・・・車速センサ    2・・・コントローラ31
〜34・・・ドライバ 41〜44・・・アクチュエータ 51〜54・・・車高調整装置
FIG. 1 is a block diagram showing an embodiment of the suspension device according to the present invention, FIG. 2 is a diagram showing an outline of the device of the embodiment, and FIG. 3 is a diagram of the controller used in the device of the embodiment. A flowchart for explaining the operation, FIG. 4 is a diagram showing the front side toe characteristics of the same embodiment device, FIG. 5 is a diagram showing the rear side toe characteristics of the same embodiment device, and FIG. 6 teeth,
It is a figure showing the toe characteristic at the time of turning of the same Example device. FIG. 7 is a diagram showing the toe characteristics on the front side of the conventional suspension device, and FIG. 8 is a diagram showing the toe characteristics on the rear side of the conventional suspension device. FIG. 9 is a diagram showing toe characteristics during turning of a conventional suspension device. 1...Vehicle speed sensor 2...Controller 31
~34...Drivers 41-44...Actuators 51-54...Vehicle height adjustment device

Claims (1)

【特許請求の範囲】[Claims] 基準位置からのバンプまたはリバウンドに応じて、車輪
がバンブ時にフロント側がトーアウト、リア側がトーイ
ンし、リバウンド時にフロント側がトーイン、リア側が
トーアウトする特性のサスペンション装置において、車
両の走行車速を検出する車速センサと、前記車速センサ
からの車速信号が設定車速以上のときには車高を上げる
旨の車高調整信号を出力し、車速信号が設定車速以下の
ときには車高を下げる旨の車高調整信号を出力するコン
トローラと、前記コントローラからの車高調整信号によ
り車高を上下して前記基準位置を変化させる車高調整装
置とからなり、低速時には車高を上げてフロント側がバ
ンプイン、リア側がバンプアウトし、高速時には車高を
下げてフロント側がバンプアウト、リア側がバンプイン
するように構成したことを特徴とするサスペンション装
置。
In response to a bump or rebound from a reference position, the front side toes out and the rear toes in when the wheels bump, and the front side toes in and the rear toes out when the wheels rebound. , a controller that outputs a vehicle height adjustment signal to raise the vehicle height when the vehicle speed signal from the vehicle speed sensor is equal to or higher than a set vehicle speed, and outputs a vehicle height adjustment signal to lower the vehicle height when the vehicle speed signal is lower than the set vehicle speed; and a vehicle height adjustment device that changes the reference position by raising or lowering the vehicle height in response to a vehicle height adjustment signal from the controller.At low speeds, the vehicle height is raised so that the front side bumps in and the rear side bumps out, and at high speeds, the vehicle height adjuster changes the reference position. A suspension device characterized by lowering the vehicle height so that the front side bumps out and the rear side bumps in.
JP24393186A 1986-10-14 1986-10-14 Suspension device Pending JPS6397411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24393186A JPS6397411A (en) 1986-10-14 1986-10-14 Suspension device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24393186A JPS6397411A (en) 1986-10-14 1986-10-14 Suspension device

Publications (1)

Publication Number Publication Date
JPS6397411A true JPS6397411A (en) 1988-04-28

Family

ID=17111154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24393186A Pending JPS6397411A (en) 1986-10-14 1986-10-14 Suspension device

Country Status (1)

Country Link
JP (1) JPS6397411A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2511830B (en) * 2013-03-14 2015-12-30 Jaguar Land Rover Ltd Ride height control unit and method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197415A (en) * 1984-03-19 1985-10-05 Mazda Motor Corp Suspension device for automobile

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197415A (en) * 1984-03-19 1985-10-05 Mazda Motor Corp Suspension device for automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2511830B (en) * 2013-03-14 2015-12-30 Jaguar Land Rover Ltd Ride height control unit and method

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