JPS623633A - Detection of unbalance of wheel of automobile or the like - Google Patents

Detection of unbalance of wheel of automobile or the like

Info

Publication number
JPS623633A
JPS623633A JP60141533A JP14153385A JPS623633A JP S623633 A JPS623633 A JP S623633A JP 60141533 A JP60141533 A JP 60141533A JP 14153385 A JP14153385 A JP 14153385A JP S623633 A JPS623633 A JP S623633A
Authority
JP
Japan
Prior art keywords
wheel
unbalance
unbalanced
time
vibration
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
Application number
JP60141533A
Other languages
Japanese (ja)
Other versions
JPH049453B2 (en
Inventor
Akira Namiki
公 並木
Tokio Kikuchi
菊地 時夫
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP60141533A priority Critical patent/JPS623633A/en
Publication of JPS623633A publication Critical patent/JPS623633A/en
Publication of JPH049453B2 publication Critical patent/JPH049453B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Testing Of Balance (AREA)

Abstract

PURPOSE:To check the balance of a wheel at a time and to improve the drivability by correcting the uniformity unbalance of the wheel at first and rotating the wheel at a high speed and detecting the weight unbalance from the vibration at that time. CONSTITUTION:The wheel 1 fitted to a car body 2 is mounted on a rotating drum 3 and the wheel 1 is rotated at a low speed and the vibration at that time is detected. Then, first, the setting position with respect to a rim of a tire is changed and corrected, and when the correction is not made hereby, the peripheral surface of the tire of the unbalanced position is removed by a grindstone or the like by the unbalanced quantity. At a stage where the correction is finished, the wheel 1 is rotated at a speed higher than before. At this time, the weight corresponding to the unbalanced quantity is calculated respectively from the measured quantity of displacement in the vertical and longitudinal directions and the quantity of displacement in the direction of a cutting angle and further, the unbalanced position is calculated and the weight corresponding to these is put on to correct the unbalance.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、自動車等の車輪の走行状態におけるアンバラ
ンスを検出する方法に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for detecting unbalance in the running state of wheels of an automobile or the like.

(従来の技術) 従来、自動車等の車体に取付けられた状態での車輪のア
ンバランスを検出する、いわゆる「オンザカー」式の検
出方法として、次のような方法が知られている。
(Prior Art) Conventionally, the following method has been known as a so-called "on-the-car" detection method for detecting unbalance of a wheel when it is attached to a vehicle body such as an automobile.

例えば、特公昭46−4402号公報に記載されたもの
は、ロアーアームを振動検出器を介してジヤツキアップ
すると共に、ブレーキの支持板の裏面にも振動検出器を
当接させて゛車輪の上下方向及びキングピンの軸心まわ
りの振動を検出するものである。
For example, in the system described in Japanese Patent Publication No. 46-4402, the lower arm is jacked up via a vibration detector, and the vibration detector is also brought into contact with the back surface of the brake support plate. It detects vibrations around the axis of the

特開昭59−217129号公報に記載されたものは、
車輪の重量アンバランスを検出した後ユニフォーミティ
アンバランスを検出するものである。
What is described in Japanese Patent Application Laid-open No. 59-217129 is
After detecting the weight imbalance of the wheels, the uniformity imbalance is detected.

(発明が解決しようとする問題点) 上記した従来の技術の前者によれば、測定の都度、車体
を上下させることが必要であると共に、各種検出器をロ
アーアーム及びブレーキの支持板の同位置に当接させな
ければならないため、作業時間が増加し、またタイヤの
ユニフォーミティアンバランスの検出ができない不都合
があった。
(Problem to be Solved by the Invention) According to the former of the above-mentioned conventional techniques, it is necessary to move the vehicle body up and down each time measurements are taken, and the various detectors are placed at the same position on the lower arm and brake support plate. Since the tires must be in contact with each other, the work time increases, and uniformity imbalance of the tires cannot be detected.

従来の技術の後者によれば、測定の都度、車体を上下さ
せることが必要であり、また回転ローラを車輪に接触さ
せてこれを回転し、重量アンバランスを検出してその修
正をした時、その修正はユニフォーミティアンバランス
の影響を含んでいるので、次のユニフォーミティの修正
後再度重量アンバランスの有無を確認する必要がある等
の不都合があった。
According to the latter of the conventional techniques, it is necessary to move the vehicle body up and down each time a measurement is made, and when a rotating roller is brought into contact with the wheel and rotated to detect and correct a weight imbalance, Since the correction includes the influence of uniformity imbalance, there are inconveniences such as the need to confirm the presence or absence of weight imbalance again after the next uniformity correction.

本発明は、従来のこのような不都合の無い車輪のアンバ
ランス検出方法を提供することをその目的とするもので
ある。
An object of the present invention is to provide a wheel unbalance detection method that is free from such conventional disadvantages.

(問題点を解決するための手段) 本発明は、自動車等の車体に取付けられた車輪のアンバ
ランスを検出する方法において、車輪を回転ドラム上に
載置し、該車輪をその重量アンバランスによる撮動が生
じない低速度で回転してその時の車輪の振動からユニフ
ォーミティアンバランスを検出し、該ユニフォーミティ
アンバランスの修正後、前記速度より高速度で回転し、
その時の車輪の振動から重量アンバランスを検出するこ
とを特徴とする。
(Means for Solving the Problems) The present invention is a method for detecting unbalance of a wheel attached to a vehicle body such as an automobile, in which the wheel is placed on a rotating drum, and the wheel is detected by the unbalanced weight of the wheel. Rotating at a low speed that does not cause imaging, detecting uniformity imbalance from the vibration of the wheel at that time, and after correcting the uniformity imbalance, rotating at a higher speed than the speed,
It is characterized by detecting weight imbalance from the vibration of the wheels at that time.

(実施例) 以下、本発明の実施例を図面につき説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.

図面において、(1)は自動車等の車体(2)に取付け
られた車輪、(3)は駆動用モータにより、あるいは該
車輪(1〉を介して自動車等の駆動力により回転する回
転ドラム、(4)は非接触式変位計、(5)は該非接触
式変位計(4)を所定の位置に設置するための小型多関
節ロボット、(6)は発光素子及び受光素子から成り、
車輪(1)のアンバランス位置を検出する位置検出器を
示す。
In the drawings, (1) is a wheel attached to a vehicle body (2) of an automobile, etc.; (3) is a rotating drum rotated by a driving motor or by the driving force of an automobile, etc. via the wheel (1); 4) is a non-contact displacement meter, (5) is a small articulated robot for installing the non-contact displacement meter (4) in a predetermined position, (6) is composed of a light emitting element and a light receiving element,
A position detector for detecting an unbalanced position of a wheel (1) is shown.

該非接触式変位計(4)は、例えば市販の非接触式光学
変位計で、第3図示のように、レーザーダイオード又は
LED等の赤外線光源〈Dと光源の赤外線を測定しよう
とする物体の表面上に輝点を設けるための集光レンズ(
8)と該物体の表面で生じた散乱光を集光するレンズ(
9〉とその焦点位置に配置され、輝点位置に反応する光
感知素子aOとから成り、第3図(A)と第3図(B)
で示す非測定物体Bdの表面の位置の変化を光感知素子
aOでの輝点位置の変化として取出し、非測定物体の変
位を測定するものである。
The non-contact displacement meter (4) is, for example, a commercially available non-contact optical displacement meter. A condensing lens to create a bright spot on the top (
8) and a lens (
9〉 and a photo-sensing element aO placed at its focal position and responsive to the position of the bright spot, as shown in Figs. 3(A) and 3(B).
The change in the position of the surface of the non-measurable object Bd shown by is extracted as a change in the bright spot position on the photo-sensing element aO, and the displacement of the non-measurable object is measured.

次に本案アンバランス検出方法を説明する。Next, the unbalance detection method of the present invention will be explained.

車輪(1)のアンバランスには、a)タイヤの周方向あ
るいは幅方向のばね定数の不均一であるユニフォーミテ
ィアンバランス、b)タイヤの外径の変動によるアンバ
ランス、C)駆動系、制動系アンバランスを含めた車輪
(1)の周方向の偏荷重である静アンバランス、d)車
輪(1)の幅方向の偏荷重である動アンバランス等があ
る。尚、該ユニフォーミティアンバランスは、タイヤの
半径方向の力の変動(ラジアル・フォース・バリエーシ
ョン、RFV )とタイヤの幅方向の力の変動(ラジア
ル・フォース・バリエーション、LFV )とから成る
The unbalance of the wheel (1) includes a) uniform unbalance due to non-uniform spring constant in the circumferential direction or width direction of the tire, b) unbalance due to variation in the outer diameter of the tire, and C) drive system and braking. There are static unbalance, which is an unbalanced load in the circumferential direction of the wheel (1) including system unbalance, and dynamic unbalance, which is an unbalanced load in the width direction of the wheel (1). Note that the uniformity imbalance consists of a variation in force in the radial direction of the tire (radial force variation, RFV) and a variation in force in the width direction of the tire (radial force variation, LFV).

上記a)、b)、C)、d)のようなアンバランスがあ
ると、回転する車輪(1)は表1に示すように、上下振
動、前後振動及び切れ角方向振動のいずれか1つあるい
はそのいくつかの組合せの撮動をする。
If there is an imbalance like a), b), C), or d) above, the rotating wheel (1) will be affected by any one of vertical vibration, longitudinal vibration, and turning angle direction vibration, as shown in Table 1. Or take a combination of some of them.

表1 本案方法によれば、上記a)、b)、C)、d)のアン
バランスのうらC)、d)のアンバランスによる振動は
、車輪のある速度以下の低速度では生じないことに着目
し、先ず車輪(1)を該低速度で回転してその振動から
ユニフォーミティアンバランスを検出し、該アンバラン
スの修正後、前記速度により高速度で回転し、その時の
車輪(1)の振動から重量アンバランスを検出する。
Table 1 According to the proposed method, the vibrations due to the unbalances in C) and d) above the unbalances in a), b), C), and d) do not occur at low speeds below a certain speed of the wheels. First, the wheel (1) is rotated at the low speed, the uniform unbalance is detected from the vibration, and after correcting the unbalance, the wheel (1) is rotated at the high speed at the above speed, and the wheel (1) at that time is rotated at the high speed. Detects weight imbalance from vibration.

以下これを更に詳細に説明すると、図示しない他の車輪
をタイヤクランプ装置でクランプした状態で、車体(2
)に取付けられた車輪(1)を回転ドラム(3〉上に載
置し、該車輪(1)を前記低速度例えば時速10KJn
/h以下程度で回転し、その時の車輪(1)の撮動を検
出する。
To explain this in more detail below, with the other wheels (not shown) clamped by the tire clamp device,
) is mounted on a rotating drum (3), and the wheel (1) is moved at the low speed, for example, 10 kJn per hour.
The wheel (1) rotates at a speed of less than /h, and the image of the wheel (1) at that time is detected.

車輪(1)の上下振動については、非接触式変位計(4
)を日ボット(5)によりロアーアームatの下面に対
向させ(第1図及び第2図の■の位置)、該下面に赤外
線が垂直に入射するようにしてロアーアーム(11の上
下方向の変位mを測定することにより検出する。
Regarding the vertical vibration of the wheel (1), use a non-contact displacement meter (4
) is made to face the lower surface of the lower arm at (position 2 in Figures 1 and 2) by the robot (5), and the vertical displacement m of the lower arm (11 is Detected by measuring.

車輪(1)の切れ角方向の振動については、非接触式変
位計(4)をロボット(5)によりスプラッシュガード
abの面に対向させ(第1図及び第2図の1の位置)、
部面に赤外線が垂直に入射するようにしてスプラッシュ
ガードaつの切れ角方向の変位量を測定することにより
検出する。
Regarding vibrations in the turning angle direction of the wheel (1), a non-contact displacement meter (4) is placed opposite the surface of the splash guard ab by the robot (5) (position 1 in Figs. 1 and 2).
Detection is performed by measuring the amount of displacement of the splash guard in the direction of the cutting angle with infrared rays being incident perpendicularly to the splash guard.

この時生ずる車輪(1)の上下振動は、ユニフォーミテ
ィアンバランスのRFVとタイヤ外径の変動によるもの
であり、REVによるアンバランス量に対応する削除量
と上下方向の変位量との関係を、予めチャートにしてお
き、あるいはメモリに記憶しておき、該チャートあるい
はメモリの内容から測定された変位量に対応した削除量
を求める。
The vertical vibration of the wheel (1) that occurs at this time is due to the uniform unbalanced RFV and fluctuations in the tire outer diameter. A chart is prepared in advance or stored in a memory, and the deletion amount corresponding to the measured displacement amount is determined from the contents of the chart or memory.

車輪(1)のアンバランス位置は次のようにして求める
The unbalanced position of the wheel (1) is determined as follows.

車輪(1)の任意の位置に反射テープを貼付し、該車輪
(1)の回転時、該テープの通過位置に位置検出器(6
)を配置する。かくすることにより該位置検出器(6)
の受光素子には、車輪(1)の回転時、テープが通過す
るたびに発行素子の光の反射光が入射し、該素子からパ
ルス信号が出力する。
A reflective tape is pasted at any position on the wheel (1), and a position detector (6) is placed at the position where the tape passes when the wheel (1) rotates.
). By doing so, the position detector (6)
When the wheel (1) rotates, reflected light from the emitting element is incident on the light receiving element each time the tape passes, and a pulse signal is output from the element.

したがってこのパルス信号と変位計(4)から出力した
位置変位信号を比較して、両者の位相差から車輪(1)
のアンバランス位置を求める。
Therefore, by comparing this pulse signal with the position displacement signal output from the displacement meter (4), the wheel (1) is determined based on the phase difference between the two.
Find the unbalanced position.

次に、始めにタイヤのリムに対する取付は位置を変えて
修正できないときには、アンバランス位置のタイヤの周
面をアンバランス■だけ砥石等により削除して修正する
Next, if the attachment of the tire to the rim cannot be corrected by changing the position, the unbalanced position of the circumferential surface of the tire is removed by using a grindstone or the like to correct the unbalanced position.

またこのとき生ずる車輪(1)の切れ角方向撮動は、ユ
ニフォーミティアンバランスのLFVによるものであり
、上記と同じ手段で測定された切れ角方向の変位量から
アンバランス量に対応した削除量を求め、また、そのア
ンバランス位置を求める。次にアンバランス位置のタイ
ヤをその幅方向にそのアンバランス量だけ砥石等により
削除等して修正する。
Furthermore, the imaging in the direction of the turning angle of the wheel (1) that occurs at this time is due to the uniform unbalanced LFV, and the amount of deletion corresponding to the amount of unbalance is determined from the amount of displacement in the direction of the turning angle measured by the same means as above. and its unbalanced position. Next, the unbalanced tire is corrected by removing the unbalanced amount in the width direction using a grindstone or the like.

修正が終った段階で前よりも高速度、例えば80〜12
01m/hの間で車輪(1)を回転する。
When the correction is finished, the speed is higher than before, for example 80 to 12.
Rotate the wheel (1) between 01 m/h.

この時生ずる車輪(1)の上下振動及び前後振動は静ア
ンバランスによるものであり、上記と同じ手段で、測定
された上下及び前後の変位量からそのアンバランス量に
対応したウェイトを求め、また、そのアンバランス位置
を求める。また、この時生ずる車輪(1)の切れ角方向
振動は動アンバランスによるものであり、上記と同じ手
段で測定された切れ角方向の変位mから、そのアンバラ
ンス量に対応したウェイトを求め、また、そのアンバラ
ンス位置を求める。
The vertical and longitudinal vibrations of the wheel (1) that occur at this time are due to static unbalance, and the weight corresponding to the unbalance is determined from the measured vertical and longitudinal displacement using the same method as above, and , find the unbalanced position. Further, the vibration in the direction of the turning angle of the wheel (1) that occurs at this time is due to dynamic unbalance, and from the displacement m in the direction of the turning angle measured by the same means as above, the weight corresponding to the amount of unbalance is calculated. Also, find the unbalanced position.

次に、車輪(1〉のそれぞれのアンバランス位置にこの
アンバランスに対応したウェイトを付けて、アンバラン
ス修正を行なう。
Next, the unbalance is corrected by attaching a weight corresponding to the unbalance to each unbalance position of the wheel (1>).

(発明の効果) 本発明によれば、予めユニフォーミティの修正を行なう
ので重量のバランスのチェックが1度ですみ、また、実
車状態で行なうので、タイヤ単品で行うものよりもドラ
イバビリティの向上が計れる等の効果がある。
(Effects of the Invention) According to the present invention, since the uniformity is corrected in advance, the weight balance only needs to be checked once, and since the check is carried out on the actual vehicle, drivability can be improved more than when only a single tire is used. It has the effect of being measurable.

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

第1図及び第2図は本案アンバランス検出方法の実施を
説明する正面図及び第1図A−A線矢視図、第3図(^
)及び(B)は被測定物体が変位した時の非接触式変位
計の1例の作動説明図である。 (1)・・・車輪        (2)・・・車体(
3)・・・回転ドラム     (4)・・・非接触式
変位計(5)・・・ロボット      (6)・・・
位置検出器(+11・・・スプラッシュガード ■・・
・ロアーアーム把 2る
Figures 1 and 2 are a front view, a view taken along the line A-A in Figure 1, and Figure 3 (^
) and (B) are explanatory diagrams of an example of the operation of a non-contact displacement meter when an object to be measured is displaced. (1)...Wheels (2)...Vehicle body (
3)...Rotating drum (4)...Non-contact displacement meter (5)...Robot (6)...
Position detector (+11...splash guard ■...
・Lower arm grip 2

Claims (1)

【特許請求の範囲】[Claims] 自動車等の車体に取付けられた車輪のアンバランスを検
出する方法において、車輪を回転ドラム上に載置し、該
車輪をその重量アンバランスによる振動が生じない低速
度で回転してその時の車輪の振動からユニフォーミティ
アンバランスを検出し、該ユニフォーミティアンバラン
スの修正後、前記速度より高速度で回転し、その時の車
輪の振動から重量アンバランスを検出することを特徴と
する自動車等の車輪のアンバランス検出方法。
In a method for detecting unbalance of a wheel attached to a vehicle body such as an automobile, the wheel is placed on a rotating drum, and the wheel is rotated at a low speed that does not cause vibration due to the unbalanced weight. A wheel of an automobile, etc., characterized in that a uniform unbalance is detected from vibration, and after the uniform unbalance is corrected, the wheel rotates at a higher speed than the above speed, and a weight unbalance is detected from the vibration of the wheel at that time. Unbalance detection method.
JP60141533A 1985-06-29 1985-06-29 Detection of unbalance of wheel of automobile or the like Granted JPS623633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60141533A JPS623633A (en) 1985-06-29 1985-06-29 Detection of unbalance of wheel of automobile or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60141533A JPS623633A (en) 1985-06-29 1985-06-29 Detection of unbalance of wheel of automobile or the like

Publications (2)

Publication Number Publication Date
JPS623633A true JPS623633A (en) 1987-01-09
JPH049453B2 JPH049453B2 (en) 1992-02-20

Family

ID=15294181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60141533A Granted JPS623633A (en) 1985-06-29 1985-06-29 Detection of unbalance of wheel of automobile or the like

Country Status (1)

Country Link
JP (1) JPS623633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03170039A (en) * 1989-08-02 1991-07-23 Asmo Co Ltd Method and device for correcting dynamic balance of rotary body and method and device for detecting projection state
GR900100677A (en) * 1989-09-14 1992-01-20 Fmc Corp Method for detecting the tyres and wheels troubles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03170039A (en) * 1989-08-02 1991-07-23 Asmo Co Ltd Method and device for correcting dynamic balance of rotary body and method and device for detecting projection state
GR900100677A (en) * 1989-09-14 1992-01-20 Fmc Corp Method for detecting the tyres and wheels troubles

Also Published As

Publication number Publication date
JPH049453B2 (en) 1992-02-20

Similar Documents

Publication Publication Date Title
US6535281B2 (en) Method and apparatus for optically scanning a vehicle wheel
US6481282B2 (en) Wheel balancer system with centering check
US4366707A (en) Apparatus for optimizing tire or wheel characteristics
EP1300665B1 (en) Vehicle wheel balancer and wheel lateral force measurement
US3914907A (en) Method for improving the ride characteristics of tires
US4480471A (en) Method and apparatus for marking the unbalances onto a rotating body, especially an automobile wheel
EP1731891B1 (en) Wheel balancer with servo motor
US4055081A (en) Method and apparatus for improving the ride characteristics of motor vehicle wheels
JPS6262238A (en) Balancing machine method and device for wheel, etc. for car
JPS623633A (en) Detection of unbalance of wheel of automobile or the like
JPH049454B2 (en)
CN101871831A (en) Device for detecting dynamic balance and uniformity of tyre
JPH02259445A (en) Method for correcting accuracy of tire uniformity machine
US6581463B1 (en) Wheel shim apparatus and method
US5479821A (en) Method and apparatus for measuring unbalance of a motor vehicle wheel on a motor vehicle
JP3249311B2 (en) Tire uniformity test equipment
US5239867A (en) Method and apparatus for improving the fit of a pneumatic tire on a motor vehicle wheel
JP2839969B2 (en) How to correct wheel imbalance
JP3027889B2 (en) Tire balance measuring device
JPS5837530A (en) Measuring method for unbalance of disc-like rotary body
JPH02115739A (en) Correcting method for measured value of rolling resistance of tire
JP2792668B2 (en) Inspection method of tire unevenness by tire uniformity machine
JPS6113132A (en) Braking force detecting mechanism in braking performance meter of tire
US5657228A (en) Dynamic behavior test system of a vehicle and method thereof
JPH06317503A (en) Abs performance inspection device