JP2004361213A - Vehicle testing device - Google Patents

Vehicle testing device Download PDF

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Publication number
JP2004361213A
JP2004361213A JP2003159283A JP2003159283A JP2004361213A JP 2004361213 A JP2004361213 A JP 2004361213A JP 2003159283 A JP2003159283 A JP 2003159283A JP 2003159283 A JP2003159283 A JP 2003159283A JP 2004361213 A JP2004361213 A JP 2004361213A
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Japan
Prior art keywords
test
braking force
vehicle
detection
rollers
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JP2003159283A
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Japanese (ja)
Inventor
Koichiro Shinkawa
弘一郎 新川
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TOKIN SYSTEM KK
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TOKIN SYSTEM KK
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Application filed by TOKIN SYSTEM KK filed Critical TOKIN SYSTEM KK
Priority to JP2003159283A priority Critical patent/JP2004361213A/en
Publication of JP2004361213A publication Critical patent/JP2004361213A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle testing device capable of measuring accurately and surely braking forces of right and left wheels constituting the vehicle. <P>SOLUTION: A pair of front-and-rear testing rollers 3, 3 journaled on right and left upper faces of a device body 2 constituting this vehicle testing device 1 are rotated integrally by a driving force of a driving device 4. When a driving force from the vehicle side works on the testing roller 3 at the braking test time, a braking force (for example, torsion or strain) generated in a detection shaft 15 for connecting the rear testing rollers 3, 3 is electrically detected by braking force detectors 6a, 6a constituting a braking force detection device 6, and operation processing of a detection signal outputted from the braking force detector 6a is performed by a detection information processing device 26 incorporated in an indicating device 23, and the result is displayed and recorded as the braking forces of right and left tires A. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、例えば制動力(ブレーキ)及び速度(スピード)の何れか一方又両方を試験するときに用いられる複合型の車両試験装置に関する。
【0002】
【従来の技術】
従来、上述の試験に用いられる試験装置としては、例えば車両の左右車輪を、台車の左右上面に軸受された前後一対のローラ間に乗せた後、前後一対のローラを、台車に設けたモータの駆動力で回転させる。且つ、車両側からの制動力がローラに働いたとき、ローラに発生する歪みを機械的に増幅して、ローラ端部に連結した歪み検出器(例えばロードセル)で独立して検出する。且つ、前後一対のローラ間に設けたリフタープレートを、車両の車輪が前後一対の試験ローラ間に乗せられる降下位置と、前後一対の試験ローラ間から脱出可能な上昇位置とに昇降シリンダーで独立して上下動する特許文献1の車両の制動試験装置がある。
【0003】
【特許文献1】
特開平5−126684号公報。
【0004】
【発明が解決しようとする課題】
しかし、上述の車両の制動試験装置は、制動試験時において、左右のローラに発生する歪みを機械的に増幅して検出するので、ローラ自体に発生する歪みを正確に検出することが難しく、検出精度が低い。且つ、左右のローラに連結した歪み検出器の間隔が広いので、左右の歪み検出器による検出条件が異なり、条件差が大きいため、左右車輪の制動力を正確且つ確実に試験することができない。
【0005】
この発明は上記問題に鑑み、左右の試験ローラを連結する検出シャフトに発生する制動力を制動力検出手段で電気的に検出することにより、左右車輪の制動力を正確且つ確実に測定することができる車両試験装置の提供を目的とする。
【0006】
【課題を解決するための手段】
この発明は、車両の左右車輪を、装置本体の左右上面に軸受された前後一対の試験ローラ間に乗せた後、該各試験ローラを装置本体に内蔵された駆動手段の駆動力で回転させて試験する車両試験装置であって、上記車両側から試験ローラに付与される制動力を検出する制動力検出手段を、上記左右の試験ローラを連結する検出シャフトに設け、上記制動力検出手段から出力される検出情報に基づいて、上記左右車輪の制動力を判定する制動力判定手段を設けた車両試験装置であることを特徴とする。
【0007】
上述の車両は、例えば自動車や自動二輪、トラック、バス等で構成され、車両の車輪は、例えばゴムタイヤ、金属や木の単体及び複合した車輪等で構成される。また、駆動手段は、例えば駆動装置及びモータ、減速機、スプロケット、チェーン等で構成される。また、制動力検出手段は、例えば車両側からの制動力が試験ローラに働いたとき、試験ローラに発生するねじれを検出するねじれトルク検出装置、試験ローラに発生する歪みを検出する歪み検出装置、光学式検出装置、過電流式検出装置、接触式検出装置等で構成される。また、制動力判定装置は、例えばパーソナルコンピューターやホストコンピューター、CPU及びROM、RAMを備えた判定制御装置、コンピューター判定制御装置に内蔵された検出情報処理装置等で構成される。
【0008】
つまり、車両の左右車輪を、装置本体の左右上面に軸受された前後一対の試験ローラ間に乗せた後、複数(4本)の試験ローラを装置本体に内蔵した駆動手段の駆動力で回転する。制動試験時において、自動車側からの制動力が試験ローラに働いたとき、左右の試験ローラを連結する検出シャフトに発生する制動力に対応した例えばねじれや歪み等を制動力検出手段で電気的に検出し、その制動力検出手段から出力される検出情報に基づいて、車両の制動力を制動力判定手段で判定する。
【0009】
実施の形態として、上記制動力検出手段を、上記左右の試験ローラと略対応して上記検出シャフトの両端部に設けることができる。つまり、左右車輪と略対応して制動力を検出することができる。また、上記制動力検出手段を、上記左右の試験ローラと略対応して検出シャフトの両端部に形成した小径軸部に設けることができる。つまり、自動車側からの制動力が試験ローラに働いたとき、左右の試験ローラを連結する検出シャフトの小径軸部に制動力(例えばねじれや歪み等)が顕著に発生するため、制動力を正確に検出することができる。また、上記試験ローラの回転速度を検出する速度検出手段を、上記試験ローラの端部に設けることができる。つまり、制動力の検出に加えて、車両の速度計と対応した試験ローラの回転速度を検出することができる。
【0010】
【作用及び効果】
この発明によれば、試験時において、車両側からの制動力が試験ローラに働いたとき、左右の試験ローラを連結する検出シャフトに発生する制動力を制動力検出手段で検出し、その検出情報に基づいて、左右車輪の制動力として制動力判定手段で判定するので、従来例のように左右ローラに発生する歪みを機械的に増幅して検出する方法よりも検出精度が高く、左右の試験ローラの略中間部において制動力を検出するため、検出時の条件が安定しており、左右車輪に略対応して正確な試験結果が得られると共に、左右車輪の制動力を正確且つ確実に測定することができる。且つ、制動力の検出に加えて、車両の速度計と対応した試験ローラの回転速度を速度検出手段で検出及び測定することができる。
【0011】
【実施例】
この発明の一実施例を以下図面に基づいて詳述する。
図面は、車両の一例である自動車の制動試験及び速度試験に用いられる複合型の車両試験装置を示し、図1、図2、図3に於いて、この車両試験装置1は、例えば小型車や中型車、大型車等の自動車(図示省略)を構成する左右タイヤA,Aが支持される前後一対の試験ローラ3…を、装置本体2の左右上面に開口した開口部2a…に取り付け、左右上面に軸受された前後一対の試験ローラ3…を回転する駆動装置4と、自動車の乗込み及び脱出を容易にする昇降装置5と、自動車側からの制動力を検出する制動力検出装置6と、速度計の速度と対応した試験ローラ3…の回転速度を検出する速度検出装置7とを、装置本体2の略中央部に内蔵している。
【0012】
上述の試験ローラ3は、実用新案登録第3091917号公報の車両の試験用ローラで構成され、走行方向B(図中矢印で示す)から見て左右のタイヤAが支持される左右間隔に隔てて配列すると共に、タイヤAが支持される前後間隔に隔てて装置本体2内部に取り付けられた自動調芯型軸受ユニット(図示省略)で回転可能に軸受している。
【0013】
且つ、図7乃至図10にも示すように、ローラ本体3bを、例えば一端側外周面から他端側外周面に向けて略同径となる略円筒形状に形成し、回転時に付与される空気抵抗が小さく且つ受けにくい凸部3aを、略中空断面形状を有するローラ本体3bの外周面全体に対して略均一に付設すると共に、自動車が実際に走行する舗装路面と略同等又は略酷似する梨地模様に付設している。また、ローラ本体3bを、例えば略円柱形状及び略中実断面形状に形成してもよい。
【0014】
前述の駆動装置4は、図5にも示すように、後述する昇降台20の上下動を妨げないような小型の装置で構成され、昇降台20の上下動が妨げられないように装置本体2の略中央下部に内蔵している。且つ、2本のチェーン10を、左側に配列した前後試験ローラ3,3の外側軸端に取り付けられたスプロケット11,11間と、右側に配列した前後試験ローラ3,3の外側軸端に取り付けられたスプロケット11,11間とにそれぞれ張架している。
【0015】
且つ、装置本体2の前側中央下部に内蔵されたモータ12を減速機13の入力側に直結し、減速機13の出力側に取り付けられたスプロケット14と、左右上面に軸受された後部試験ローラ3,3を直結する検出シャフト15の略中央部に取り付けられたスプロケット16との間にチェーン17を張架して、一つのモータ12から出力される駆動力を、減速機13及びスプロケット14,16、チェーン17を介して、左右の後部試験ローラ3,3を連結する検出シャフト15に伝達し、左右上面に軸受された前後一対の試験ローラ3…を同一方向(矢印方向)に向けて一体的に回転駆動する。なお、チェーン17は、後述する昇降台20の昇降動作が妨げられず、昇降台20に対して接触が回避される角度及び高さに張架している。
【0016】
且つ、スプロケット16の近傍又は側部に取り付けられたクラッチ装置18(例えばカム式クラッチ)は、速度試験時において、モータ12から試験ローラ3に出力される駆動力を遮断し、試験ローラ3…を自由回転可能にする。
【0017】
また、図6に示すように、上述の駆動装置4を装置本体2の後側中央外部に突出して設けてもよく、上述と同様に、モータ12から出力される駆動力により試験ローラ3…を略連動して回転駆動することができる。また、例えば前部試験ローラ3又は後部試験ローラ3の何れか一方を回転駆動してもよい。
【0018】
前述の昇降装置5(例えば中間リフト装置)は、上述の試験ローラ3…の回転及び駆動装置4の駆動を妨げないように設けられ、左右タイヤA,Aが略水平に支持される長さ及び幅に形成した一つの昇降台20を、前後に配列した試験ローラ3,3の間に対して昇降可能及び上下動可能に設け、装置本体2の左右下部に内蔵され、前後試験ローラ3,3の略中間部に配設した昇降シリンダー21,21のロッド上端を昇降台20の左右下面に連結して、昇降台20を、昇降シリンダー21,21の作動により略水平状態にバランスを保ちながら安定して上下動させ、前後一対の試験ローラ3,3間にタイヤAが乗せられる降下位置(リフトダウン)と、前後一対の試験ローラ3,3間からタイヤAが脱出・通過許容される上昇位置(リフトアップ)とに昇降動作する。
【0019】
且つ、昇降台上昇時において、試験ローラ3を回転不可に停止するブレーキ装置(図示省略)が作動し、タイヤAの乗込み及び脱出、通過を容易にする。なお、昇降台20は、上述のチェーン17の回転が妨げられず、チェーン17に対して接触が回避されるような大きさ及び形状に形成するか、チェーン17に対して接触が回避される形状に切欠き形成するか、下限降下位置に規制する等している。
【0020】
前述の制動力検出装置6は、図4にも示すように、車両側からの制動力を検出する制動力検出器6aを当該装置に内蔵し、その制動力検出器6aを、左右のタイヤA,Aと略対応して、左右上面に軸受された後部試験ローラ3,3を連結する検出シャフト15の両端部に形成した小径軸部に取り付けている。制動試験時において、自動車側からの制動力が左右の試験ローラ3に働いたとき、左右の後部試験ローラ3,3を連結する歪みゲージ(図示省略)が取り付けられた検出シャフト15の小径軸部に発生する制動力と対応する例えばねじれや歪み等を、左右一対の制動力検出装置6,6を構成する制動力検出器6a,6aでそれぞれ検出する。
【0021】
且つ、制動力検出器6aが検出するねじれ量や歪み量を伝達トルクに比例した電圧に変換し、その電圧出力を周波数に変換後、光信号により無接触で受光器(図示省略)を介して中継装置22(例えば中継アンプ)に出力し、その検出信号(周波数信号)を中継装置22から後述する指示装置23に送信する。
【0022】
前述の速度検出装置7は、試験ローラ3の回転を検出する速度検出器7aを、左右何れか一方の前側試験ローラ3の内側軸端に取り付け、速度試験時において、自動車(図示省略)の駆動側タイヤAが試験ローラ3上で回転したとき、その速度検出器7aが検出する回転数に比例した検出信号(ローラ1回転20パルスのパルス信号)を後述する指示装置23に送信する。また、中継装置22を介して指示装置23に送信する。
【0023】
前述の指示装置23は、図1に示すように、一軸二針のアナログ式制動力表示部24及びデジタル式速度表示部25を装置本体2の表示面に設け、制動力検出器6aから出力される検出信号(周波数)と、速度検出器7aから出力される検出信号(パルス信号)とに基づいて、制動力及び速度を、装置本体2に内蔵された検出情報処理装置26で演算処理して算出すると共に、その結果を、制動力表示部24及び速度表示部25に表示するか、記録する。且つ、制動力及び速度の指示値をホールドする機能を備え、床置き式や吊下げ式、固定式の表示として使用することができる。また、装置本体2及び指示装置23を有線で接続するか、制動力表示部24及び速度表示部25、検出情報処理装置26を装置本体2に設けてもよい。
【0024】
且つ、赤外線式ワイヤレスリモコンで構成されるリモコンスイッチ27を装置本体2に標準装備し、そのリモコンスイッチ27の操作面に、例えば中間リフトの昇降スイッチ、駆動装置4のON/OFFスイッチ、指示ホールドスイッチ、CALスイッチ、OFFSETスイッチ、MODEスイッチ(ピーク値表示等)等のスイッチを配列している。また、有線式リモコンスイッチを用いてもよい。
【0025】
図示実施例は上記の如く構成するものにして、以下、車両試験装置1による試験方法を説明する。
【0026】
先ず、自動車(図示省略)の制動試験時において、図5にも示すように、昇降装置5を構成する昇降台20を、自動車の左右タイヤA,Aが装置本体2の左右上面に軸受された前後一対の試験ローラ3,3間に乗込みが可能な高さに上昇動作させ、試験ローラ3…をブレーキ装置(図示省略)で回転不可に停止して、左右タイヤA,Aを、左右に配列された前後一対の試験ローラ3,3間に移動及び乗込ませた後、昇降台20を、略水平状態にバランスを保ちながら前後一対の試験ローラ3,3間にタイヤAが乗せられる降下位置に降下動作して、左右タイヤA,Aを、左右上面に軸受された前後一対の試験ローラ3,3間に乗せる。
【0027】
次に、ブレーキ装置(図示省略)による試験ローラ3…の回転固定を解除した後、図1、図2、図3にも示すように、装置本体2の略中央部に内蔵した駆動装置4を構成するモータ12の駆動力を、左右の後部試験ローラ3,3を連結する検出シャフト15に伝達して、左右上面に軸受された前後一対の試験ローラ3…を同一方向(矢印方向)に低速回転させる。
【0028】
次に、自動車のブレーキペダルを踏む動作を行った場合、図4に示すように、自動車側からの制動力が試験ローラ3に働き、左右に配列された後部試験ローラ3,3を連結する検出シャフト15の小径軸部に、伝達トルクに比例して制動力に対応するねじれや歪み等が顕著に発生する。且つ、検出シャフト15の小径軸部に発生するねじれや歪み等を、左右一対の制動力検出装置6,6を構成する制動力検出器6a,6aでそれぞれ電気的に検出し、その制動力検出器6a,6aが検出する検出量を電圧に変換後、所定の周波数に変換して、光信号により無接触で受光器(図示省略)を介して中継装置22(例えば中継アンプ)に送信する。
【0029】
次に、速度試験時において、モータ12から試験ローラ3に出力される駆動力をクラッチ装置18で遮断し、試験ローラ3…を自由回転可能に設定した後、試験ローラ3の回転を速度検出装置7の速度検出器7aで検出し、その速度検出器7aが検出する回転数に比例した検出信号を後述する指示装置23に出力する。
【0030】
一方、制動力検出器6aから出力される検出信号(周波数)と、速度検出器7aから出力される検出信号(パルス信号)とを、指示装置23に内蔵した検出情報処理装置26で演算処理して、その結果を、左右タイヤA,Aの制動力として制動力表示部24に表示し、速度計(図示省略)の速度として速度表示部25に表示する。
【0031】
次に、試験終了後において、図5にも示すように、昇降装置5を構成する昇降台20を略水平状態にバランスを保ちながら、自動車の左右タイヤA,Aが、左右上面に軸受された前後一対の試験ローラ3,3間から脱出可能な上昇位置に上昇動作させ、試験ローラ3…をブレーキ装置(図示省略)で回転不可に停止して、試験済みの自動車を試験ローラ3…上から脱出させ、次の自動車を試験ローラ3…上に移動させた後、上述と同様にして、自動車の制動試験及び速度試験を継続して行う。
【0032】
以上のように、制動試験時において、自動車側からの制動力が左右の試験ローラ3…に働いたとき、左右の後部試験ローラ3,3を連結する検出シャフト15の小径軸部に発生する制動力を、制動力検出装置6を構成する左右の制動力検出器6a,6aで電気的に検出し、制動力検出器6a,6aから出力される検出信号(周波数)を、指示装置23に内蔵した検出情報処理装置26で演算処理して、その結果を、左右タイヤA,Aの制動力として表示及び記録するので、従来例のようにローラに発生する歪みを機械的に増幅して検出する方法よりも検出精度が高く、左右の試験ローラ3,3の略中間部において制動力を検出するため、検出時の条件が安定しており、左右タイヤA,Aに略対応して正確な試験結果が得られると共に、左右タイヤA,Aの制動力を正確且つ確実に測定することができる。且つ、制動力の検出に加えて、車両の速度計と対応した試験ローラ3の回転速度を速度検出装置7で検出及び測定することができる。
【0033】
この発明の構成と、上述の実施例との対応において、
この発明の車両及び車輪は、実施例の自動車及びタイヤAにそれぞれ対応し、
以下同様に、
制動力検出手段は、実施例の制動力検出装置6及び制動力検出器6aに対応し、
速度検出手段は、速度検出装置7及び速度検出器7aに対応し、
制動力判定手段は、指示装置23及び検出情報処理装置26に対応し、
駆動手段は、駆動装置4及びモータ12、減速機13、スプロケット14,16、チェーン17に対応するも、
この発明は、上述の実施例の構成のみに限定されるものではない。
【0034】
例えば凹凸部又はエンボス部が加工された試験ローラ3を、車両試験装置を構成する装置本体2の前側及び後側の何れか一方に軸受してもよい。
【図面の簡単な説明】
【図1】車両試験装置による試験方法を示す斜視図。
【図2】装置本体の内部構造を示す平面図。
【図3】左右試験ローラの連結状態を示す背面図。
【図4】制動力検出装置の取り付け状態を示す拡大図。
【図5】駆動装置を装置本体内部に設けた例を示す縦断側面図。
【図6】駆動装置を装置本体外部に設けた他の例を示す縦断側面図。
【図7】凸部を梨地模様に付設した試験ローラを示す斜視図。
【図8】一端側から見た試験ローラの外周形状を示す拡大側面図。
【図9】試験ローラの一部外周を示す拡大断面図。
【図10】試験ローラの外周面に付設した模様を示す拡大平面図。
【符号の説明】
A…タイヤ
1…車両試験装置
2…装置本体
3…試験ローラ
4…駆動装置
5…昇降装置
6…制動力検出装置
7…速度検出装置
15…検出シャフト
20…昇降台
23…指示装置
26…検出情報処理装置
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hybrid vehicle test apparatus used for testing, for example, one or both of a braking force (brake) and a speed (speed).
[0002]
[Prior art]
Conventionally, as a test device used in the above-described test, for example, after placing the left and right wheels of the vehicle between a pair of front and rear rollers bearing on the left and right upper surfaces of the bogie, a pair of front and rear rollers, a motor provided on the bogie Rotate with driving force. In addition, when a braking force from the vehicle acts on the roller, distortion generated in the roller is mechanically amplified, and is independently detected by a distortion detector (for example, a load cell) connected to an end of the roller. In addition, the lifter plate provided between the pair of front and rear rollers is independently moved by a lifting cylinder into a lowering position where the vehicle wheel is put between the pair of front and rear test rollers and a rising position where the vehicle wheel can escape from the pair of front and rear test rollers. There is a vehicle braking test device of Patent Document 1 which moves up and down.
[0003]
[Patent Document 1]
JP-A-5-126684.
[0004]
[Problems to be solved by the invention]
However, the above-described vehicle braking test device mechanically amplifies and detects the distortion generated in the left and right rollers during the braking test, so it is difficult to accurately detect the distortion generated in the rollers themselves, and the detection is difficult. Low accuracy. In addition, since the distance between the strain detectors connected to the left and right rollers is wide, the detection conditions of the right and left strain detectors are different, and the condition difference is large. Therefore, it is impossible to accurately and reliably test the braking force of the left and right wheels.
[0005]
In view of the above problems, the present invention can accurately and reliably measure the braking force of the left and right wheels by electrically detecting the braking force generated on the detection shaft connecting the left and right test rollers with the braking force detection means. The purpose of the present invention is to provide a vehicle test device that can perform the test.
[0006]
[Means for Solving the Problems]
According to the present invention, after the left and right wheels of a vehicle are placed between a pair of front and rear test rollers bearing on the left and right upper surfaces of the apparatus main body, each of the test rollers is rotated by a driving force of a driving unit built in the apparatus main body. A vehicle test apparatus for testing, wherein braking force detection means for detecting a braking force applied to a test roller from the vehicle is provided on a detection shaft connecting the left and right test rollers, and output from the braking force detection means. It is a vehicle test apparatus provided with braking force determination means for determining the braking force of the left and right wheels based on the detected information.
[0007]
The above-described vehicle includes, for example, an automobile, a motorcycle, a truck, a bus, and the like. The wheels of the vehicle include, for example, rubber tires, metal and wood simple and composite wheels, and the like. The driving means is composed of, for example, a driving device and a motor, a speed reducer, a sprocket, a chain, and the like. Further, the braking force detection means, for example, when a braking force from the vehicle side acts on the test roller, a torsion torque detection device that detects a twist generated in the test roller, a distortion detection device that detects distortion generated in the test roller, It consists of an optical detector, an overcurrent detector, a contact detector, and the like. The braking force determination device includes, for example, a personal computer, a host computer, a determination control device including a CPU, a ROM, and a RAM, a detection information processing device built in the computer determination control device, and the like.
[0008]
That is, after the left and right wheels of the vehicle are placed between a pair of front and rear test rollers bearing on the left and right upper surfaces of the apparatus main body, a plurality of (four) test rollers are rotated by the driving force of driving means built in the apparatus main body. . At the time of the braking test, when the braking force from the vehicle acts on the test roller, for example, torsion or distortion corresponding to the braking force generated on the detection shaft connecting the left and right test rollers is electrically detected by the braking force detecting means. The braking force of the vehicle is determined by the braking force determining means based on the detected information output from the braking force detecting means.
[0009]
As an embodiment, the braking force detection means may be provided at both ends of the detection shaft substantially corresponding to the left and right test rollers. That is, the braking force can be detected substantially corresponding to the left and right wheels. Further, the braking force detecting means can be provided on small diameter shaft portions formed at both ends of the detection shaft substantially corresponding to the left and right test rollers. In other words, when the braking force from the vehicle acts on the test roller, the braking force (for example, twisting or distortion) is remarkably generated in the small diameter shaft portion of the detection shaft connecting the left and right test rollers. Can be detected. Further, a speed detecting means for detecting a rotation speed of the test roller may be provided at an end of the test roller. That is, in addition to the detection of the braking force, the rotation speed of the test roller corresponding to the speedometer of the vehicle can be detected.
[0010]
[Action and effect]
According to the present invention, at the time of a test, when the braking force from the vehicle acts on the test roller, the braking force generated on the detection shaft connecting the left and right test rollers is detected by the braking force detection means, and the detection information is obtained. The braking force of the left and right wheels is determined by the braking force determination means based on the above, so that the detection accuracy is higher than the method of mechanically amplifying and detecting the distortion generated in the left and right rollers as in the conventional example, and the left and right test Since the braking force is detected at the approximate middle of the roller, the conditions at the time of detection are stable, accurate test results can be obtained corresponding to the left and right wheels, and the braking force of the left and right wheels can be measured accurately and reliably. can do. In addition to the detection of the braking force, the rotation speed of the test roller corresponding to the speedometer of the vehicle can be detected and measured by the speed detection means.
[0011]
【Example】
An embodiment of the present invention will be described below in detail with reference to the drawings.
The drawings show a combined type vehicle test apparatus used for a braking test and a speed test of an automobile as an example of a vehicle. In FIGS. 1, 2 and 3, the vehicle test apparatus 1 is, for example, a small car or a medium-sized car. A pair of front and rear test rollers 3 supporting left and right tires A, A constituting an automobile (not shown) such as a car, a large car, etc., are attached to openings 2a. A drive unit 4 for rotating a pair of front and rear test rollers 3... Mounted on the vehicle, an elevating device 5 for facilitating entry and exit of the vehicle, and a braking force detection device 6 for detecting a braking force from the vehicle. A speed detecting device 7 for detecting the rotation speed of the test rollers 3 corresponding to the speed of the speedometer is built in substantially the center of the device main body 2.
[0012]
The above-described test roller 3 is constituted by a vehicle test roller disclosed in Japanese Utility Model Registration No. 3091917, and is separated by a left-right interval in which the right and left tires A are supported when viewed from a running direction B (indicated by an arrow in the drawing). They are arranged and are rotatably supported by a self-aligning type bearing unit (not shown) mounted inside the apparatus main body 2 at an interval in the front-rear direction where the tire A is supported.
[0013]
Further, as shown in FIGS. 7 to 10, the roller body 3b is formed in a substantially cylindrical shape having substantially the same diameter from the outer peripheral surface on one end side to the outer peripheral surface on the other end side, for example. A convex portion 3a having a small resistance and being hardly received is provided substantially uniformly over the entire outer peripheral surface of the roller body 3b having a substantially hollow cross-sectional shape, and has a matte texture that is substantially equal to or substantially similar to a pavement road surface on which an automobile actually travels. Attached to the pattern. Further, the roller body 3b may be formed, for example, in a substantially cylindrical shape and a substantially solid cross-sectional shape.
[0014]
The driving device 4 is a small device that does not hinder the vertical movement of the elevator 20 as described below, as shown in FIG. 5. It is built in the lower part of the approximate center. Further, two chains 10 are attached between the sprockets 11, 11 attached to the outer shaft ends of the front and rear test rollers 3, 3 arranged on the left side, and to the outer shaft ends of the front and rear test rollers 3, 3 arranged on the right side. The sprockets 11 and 11 are respectively stretched.
[0015]
Further, a motor 12 built in the lower front center of the apparatus body 2 is directly connected to the input side of the speed reducer 13, and a sprocket 14 mounted on the output side of the speed reducer 13 and the rear test roller 3 mounted on the left and right upper surfaces. A chain 17 is stretched between a sprocket 16 and a sprocket 16 attached to a substantially central portion of a detection shaft 15 which directly connects the driving shaft 3 and the driving shaft 3. The driving force output from one motor 12 is reduced by the speed reducer 13 and the sprockets 14, 16 Through a chain 17 to a detection shaft 15 connecting the left and right rear test rollers 3 and 3, and a pair of front and rear test rollers 3. Is driven to rotate. Note that the chain 17 is stretched at an angle and a height at which the lifting operation of the lifting platform 20 described later is not hindered and contact with the lifting platform 20 is avoided.
[0016]
Further, a clutch device 18 (for example, a cam-type clutch) mounted near or on the side of the sprocket 16 cuts off the driving force output from the motor 12 to the test roller 3 during the speed test, and connects the test rollers 3. Enable free rotation.
[0017]
Further, as shown in FIG. 6, the above-mentioned driving device 4 may be provided so as to protrude outside the rear center of the device main body 2, and the test rollers 3 are driven by the driving force output from the motor 12 in the same manner as described above. It can be driven to rotate substantially in conjunction. Further, for example, one of the front test roller 3 and the rear test roller 3 may be rotationally driven.
[0018]
The lifting device 5 (for example, an intermediate lifting device) is provided so as not to hinder the rotation of the test rollers 3 and the driving of the driving device 4, and has a length that allows the left and right tires A, A to be supported substantially horizontally. One elevating table 20 having a width is provided so as to be vertically movable and vertically movable between test rollers 3 and 3 arranged in front and rear. The upper ends of the rods of the elevating cylinders 21 and 21 arranged at the substantially middle part of the elevating table 20 are connected to the lower left and right surfaces of the elevating table 20, and the elevating table 20 is stabilized while being maintained in a substantially horizontal state by the operation of the elevating cylinders 21 and 21. (A lift-down position) where the tire A is put between the pair of front and rear test rollers 3 and 3, and a rising position where the tire A is allowed to escape and pass between the pair of front and rear test rollers 3 and 3. (Lifta Moves up and down to and up).
[0019]
In addition, a brake device (not shown) that stops the test roller 3 so that the test roller 3 cannot rotate when the ascending and descending platform rises is activated, thereby making it easy for the tire A to get in, escape, and pass. In addition, the lift 20 is formed in a size and a shape such that the rotation of the chain 17 is not hindered and the contact with the chain 17 is avoided. Notch or restricting to a lower limit lowering position.
[0020]
As shown in FIG. 4, the above-described braking force detection device 6 has a braking force detector 6a for detecting a braking force from the vehicle side built in the device, and the braking force detector 6a is connected to the left and right tires A. , A, are attached to small diameter shaft portions formed at both ends of the detection shaft 15 for connecting the rear test rollers 3, 3 which are mounted on the left and right upper surfaces. In the braking test, when a braking force from the vehicle acts on the left and right test rollers 3, the small diameter shaft portion of the detection shaft 15 to which a strain gauge (not shown) for connecting the left and right rear test rollers 3, 3 is attached. For example, torsion, distortion, and the like corresponding to the braking force generated in the left and right are detected by the braking force detectors 6a, 6a constituting the pair of left and right braking force detection devices 6, 6, respectively.
[0021]
In addition, the torsion amount and the distortion amount detected by the braking force detector 6a are converted into a voltage proportional to the transmission torque, and the voltage output is converted into a frequency. The signal is output to the relay device 22 (for example, a relay amplifier), and the detection signal (frequency signal) is transmitted from the relay device 22 to an instruction device 23 described later.
[0022]
The above-mentioned speed detecting device 7 has a speed detector 7a for detecting rotation of the test roller 3 attached to the inner shaft end of one of the left and right front test rollers 3, and drives a vehicle (not shown) during a speed test. When the side tire A rotates on the test roller 3, a detection signal (pulse signal of 20 pulses per roller rotation) proportional to the number of rotations detected by the speed detector 7a is transmitted to the instruction device 23 described later. Further, it transmits to the instruction device 23 via the relay device 22.
[0023]
As shown in FIG. 1, the indicating device 23 has an analog braking force display unit 24 and a digital speed display unit 25 each having a single shaft and two hands on the display surface of the device main body 2, and is output from the braking force detector 6a. The braking information and the speed are calculated by the detection information processing device 26 incorporated in the device main body 2 based on the detection signal (frequency) detected by the detection device 7 and the detection signal (pulse signal) output from the speed detector 7a. In addition to the calculation, the result is displayed on the braking force display unit 24 and the speed display unit 25 or recorded. In addition, it has a function of holding the indicated values of the braking force and the speed, and can be used as a floor-standing type, a hanging type, or a fixed type display. Further, the device main body 2 and the pointing device 23 may be connected by wire, or the braking force display unit 24, the speed display unit 25, and the detection information processing device 26 may be provided in the device main body 2.
[0024]
In addition, a remote control switch 27 composed of an infrared wireless remote controller is provided as standard equipment on the apparatus main body 2, and an operation surface of the remote control switch 27 includes, for example, a lift switch of an intermediate lift, an ON / OFF switch of the drive device 4, and an instruction hold switch. , CAL switch, OFFSET switch, MODE switch (peak value display, etc.). Further, a wired remote control switch may be used.
[0025]
The illustrated embodiment is configured as described above, and a test method using the vehicle test apparatus 1 will be described below.
[0026]
First, at the time of a braking test of an automobile (not shown), as shown in FIG. 5, the elevator 20 constituting the elevator 5 is mounted on the left and right upper surfaces of the left and right tires A, A of the automobile. The test rollers 3 are lifted to a height at which they can ride between the pair of front and rear test rollers 3 and 3 so that the test rollers 3... After moving and riding between the pair of front and rear test rollers 3 and 3, the elevator 20 is lowered while the tire A is put between the pair of front and rear test rollers 3 while maintaining the balance in a substantially horizontal state. Then, the left and right tires A, A are put between the pair of front and rear test rollers 3 and 3 which are mounted on the left and right upper surfaces.
[0027]
Next, after the rotation of the test rollers 3... By the brake device (not shown) is released, as shown in FIGS. 1, 2, and 3, the driving device 4 built in substantially the center of the device main body 2 is used. The driving force of the motor 12 is transmitted to the detection shaft 15 connecting the left and right rear test rollers 3 and the pair of front and rear test rollers 3 bearing on the left and right upper surfaces are moved at a low speed in the same direction (arrow direction). Rotate.
[0028]
Next, when an operation of depressing the brake pedal of the automobile is performed, as shown in FIG. 4, a braking force from the automobile acts on the test rollers 3 to detect the connection of the rear test rollers 3, 3 arranged on the left and right. In the small-diameter shaft portion of the shaft 15, torsion, distortion, or the like corresponding to the braking force is significantly generated in proportion to the transmission torque. In addition, torsion, distortion, and the like generated in the small diameter shaft portion of the detection shaft 15 are electrically detected by the braking force detectors 6a, 6a constituting the pair of left and right braking force detection devices 6, 6, respectively. After the detection amounts detected by the devices 6a, 6a are converted into voltages, they are converted into a predetermined frequency, and transmitted to a relay device 22 (for example, a relay amplifier) through an optical receiver (not shown) in a non-contact manner by an optical signal.
[0029]
Next, at the time of the speed test, the driving force output from the motor 12 to the test roller 3 is cut off by the clutch device 18, and the test rollers 3 are set to be freely rotatable. 7, and outputs a detection signal proportional to the rotation speed detected by the speed detector 7a to an instruction device 23 described later.
[0030]
On the other hand, a detection signal (frequency) output from the braking force detector 6a and a detection signal (pulse signal) output from the speed detector 7a are arithmetically processed by a detection information processing device 26 built in the pointing device 23. Then, the result is displayed on the braking force display unit 24 as the braking force of the left and right tires A, A, and is displayed on the speed display unit 25 as the speed of a speedometer (not shown).
[0031]
Next, after the test, as shown in FIG. 5, the left and right tires A, A of the automobile were bearing on the left and right upper surfaces while maintaining the balance of the elevator 20 constituting the elevator 5 in a substantially horizontal state. The ascending operation is carried out to the ascending position where the test rollers 3 can escape from the pair of front and rear test rollers 3, and the test rollers 3 are stopped by a brake device (not shown) so that they cannot rotate. After the vehicle escapes and the next vehicle is moved onto the test rollers 3, the braking test and the speed test of the vehicle are continuously performed in the same manner as described above.
[0032]
As described above, in the braking test, when the braking force from the vehicle acts on the left and right test rollers 3..., The control generated on the small diameter shaft portion of the detection shaft 15 connecting the left and right rear test rollers 3, 3. The power is electrically detected by the left and right braking force detectors 6a, 6a constituting the braking force detection device 6, and a detection signal (frequency) output from the braking force detectors 6a, 6a is built in the indicating device 23. The detected information processing device 26 performs arithmetic processing and displays and records the result as the braking force of the left and right tires A, A, so that the distortion generated in the rollers is mechanically amplified and detected as in the conventional example. Since the detection accuracy is higher than the method and the braking force is detected at a substantially intermediate portion between the left and right test rollers 3 and 3, the conditions at the time of detection are stable, and an accurate test is performed substantially corresponding to the left and right tires A and A. The result is obtained, Ya A, the braking force of A can be accurately and reliably measured. In addition to the detection of the braking force, the rotation speed of the test roller 3 corresponding to the speedometer of the vehicle can be detected and measured by the speed detection device 7.
[0033]
In correspondence between the configuration of the present invention and the above-described embodiment,
The vehicle and the wheels of the present invention respectively correspond to the automobile and the tire A of the embodiment,
Similarly,
The braking force detection means corresponds to the braking force detection device 6 and the braking force detector 6a of the embodiment,
The speed detecting means corresponds to the speed detecting device 7 and the speed detector 7a,
The braking force determination means corresponds to the instruction device 23 and the detection information processing device 26,
The driving means corresponds to the driving device 4 and the motor 12, the speed reducer 13, the sprockets 14, 16 and the chain 17,
The present invention is not limited only to the configuration of the above embodiment.
[0034]
For example, the test roller 3 having the concave and convex portions or the embossed portion may be bearing on one of the front side and the rear side of the apparatus main body 2 constituting the vehicle test apparatus.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a test method using a vehicle test apparatus.
FIG. 2 is a plan view showing the internal structure of the apparatus main body.
FIG. 3 is a rear view showing a connected state of left and right test rollers.
FIG. 4 is an enlarged view showing an attached state of the braking force detection device.
FIG. 5 is a vertical sectional side view showing an example in which a driving device is provided inside the device main body.
FIG. 6 is a longitudinal sectional side view showing another example in which the driving device is provided outside the device main body.
FIG. 7 is a perspective view showing a test roller in which convex portions are provided in a satin pattern.
FIG. 8 is an enlarged side view showing the outer peripheral shape of the test roller viewed from one end side.
FIG. 9 is an enlarged cross-sectional view showing a part of the outer periphery of a test roller.
FIG. 10 is an enlarged plan view showing a pattern attached to the outer peripheral surface of the test roller.
[Explanation of symbols]
A ... tire 1 ... vehicle testing device 2 ... device main body 3 ... test roller 4 ... driving device 5 ... lifting device 6 ... braking force detection device 7 ... speed detection device 15 ... detection shaft 20 ... lifting platform 23 ... indicating device 26 ... detection Information processing equipment

Claims (4)

車両の左右車輪を、装置本体の左右上面に軸受された前後一対の試験ローラ間に乗せた後、該各試験ローラを装置本体に内蔵された駆動手段の駆動力で回転させて試験する車両試験装置であって、
上記車両側から試験ローラに付与される制動力を検出する制動力検出手段を、上記左右の試験ローラを連結する検出シャフトに設け、
上記制動力検出手段から出力される検出情報に基づいて、上記左右車輪の制動力を判定する制動力判定手段を設けた
車両試験装置。
A vehicle test in which the right and left wheels of a vehicle are placed between a pair of front and rear test rollers bearing on the left and right upper surfaces of the apparatus main body, and each of the test rollers is rotated by a driving force of a driving unit built in the apparatus main body to perform a test. A device,
A braking force detecting means for detecting a braking force applied to the test roller from the vehicle side is provided on a detection shaft connecting the left and right test rollers,
A vehicle test apparatus provided with braking force determination means for determining the braking force of the left and right wheels based on detection information output from the braking force detection means.
上記制動力検出手段を、上記左右の試験ローラと略対応して上記検出シャフトの両端部に設けた
請求項1記載の車両試験装置。
2. The vehicle test apparatus according to claim 1, wherein the braking force detection means is provided at both ends of the detection shaft substantially corresponding to the left and right test rollers.
上記制動力検出手段を、上記左右の試験ローラと略対応して上記検出シャフトの両端部に形成した小径軸部に設けた
請求項1記載の車両試験装置。
2. The vehicle test apparatus according to claim 1, wherein said braking force detecting means is provided on small diameter shaft portions formed at both ends of said detection shaft substantially corresponding to said left and right test rollers.
上記試験ローラの回転速度を検出する速度検出手段を、上記試験ローラの端部に設けた
請求項1記載の車両試験装置。
The vehicle test apparatus according to claim 1, wherein a speed detecting means for detecting a rotation speed of the test roller is provided at an end of the test roller.
JP2003159283A 2003-06-04 2003-06-04 Vehicle testing device Pending JP2004361213A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Related Child Applications (1)

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JP2005003462U Continuation JP3112721U (en) 2005-05-20 2005-05-20 Vehicle test equipment

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006337299A (en) * 2005-06-06 2006-12-14 Tokin System:Kk Test roller for vehicle inspection device
JP2006349400A (en) * 2005-06-14 2006-12-28 Tokin System:Kk Bearing structure of vehicle inspection system
JP2011095203A (en) * 2009-11-02 2011-05-12 East Africa Automobile Services 株式会社 Vehicle inspection device
CN103063348A (en) * 2012-12-30 2013-04-24 徐州苏煤矿山设备制造有限公司 Testing device of traction force and braking force of track locomotive

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006337299A (en) * 2005-06-06 2006-12-14 Tokin System:Kk Test roller for vehicle inspection device
JP4703269B2 (en) * 2005-06-06 2011-06-15 株式会社トーキンシステム Test roller for vehicle inspection equipment
JP2006349400A (en) * 2005-06-14 2006-12-28 Tokin System:Kk Bearing structure of vehicle inspection system
JP4703278B2 (en) * 2005-06-14 2011-06-15 株式会社トーキンシステム Bearing structure of vehicle inspection equipment
JP2011095203A (en) * 2009-11-02 2011-05-12 East Africa Automobile Services 株式会社 Vehicle inspection device
CN103063348A (en) * 2012-12-30 2013-04-24 徐州苏煤矿山设备制造有限公司 Testing device of traction force and braking force of track locomotive

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