JPH06138001A - Inspection method for traction control - Google Patents
Inspection method for traction controlInfo
- Publication number
- JPH06138001A JPH06138001A JP4287932A JP28793292A JPH06138001A JP H06138001 A JPH06138001 A JP H06138001A JP 4287932 A JP4287932 A JP 4287932A JP 28793292 A JP28793292 A JP 28793292A JP H06138001 A JPH06138001 A JP H06138001A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- wheels
- traction control
- speed
- wheel
- 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
Links
Landscapes
- Regulating Braking Force (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、駆動輪用のローラと従
動輪用のローラとを備える検査装置上で自動車を走行さ
せてトラクションコントロールの検査を行う方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inspecting a traction control by running an automobile on an inspection device having rollers for driving wheels and rollers for driven wheels.
【０００２】[0002]
【従来の技術】トラクションコントロールは、自動車の
前後一方の車輪たる従動輪と他方の車輪たる駆動輪との
回転速度差から駆動輪のスリップ率を演算し、スリップ
率が所定範囲に収まるように駆動輪の回転を制御するも
のであり、従来、かかるトラクションコントロールの検
査方法として、実開昭６３−８４５４４号公報により、
検査装置の各ローラに自動車の各車輪を乗せ、各ローラ
が独立して回転し得るようにしてアクセルペダルを踏込
み、駆動輪用のローラの回転速度の所定時間内の上昇値
に基いてトラクションコントロールの良否を判定するよ
うにしたものが知られている。2. Description of the Related Art In traction control, a slip ratio of a driving wheel is calculated from a rotational speed difference between a driven wheel, which is one of the front and rear wheels of a vehicle, and a driving wheel, which is the other wheel, and is driven so that the slip ratio falls within a predetermined range. It controls the rotation of the wheel, and as a conventional inspection method of such traction control, according to Japanese Utility Model Laid-Open No. 63-84544,
Each wheel of the automobile is placed on each roller of the inspection device, the accelerator pedal is depressed so that each roller can rotate independently, and traction control is performed based on the increase value of the rotation speed of the drive wheel roller within a predetermined time. It is known that the quality of is judged.
【０００３】[0003]
【発明が解決しようとする課題】上記したトラクション
コントロールの検査は、アクセルペダルの踏込み時に駆
動輪と従動輪（回転しない）との間に回転速度差を生
じ、トラクションコントロールが正常に機能していれば
駆動輪の速度アップが抑制されて、駆動輪用ローラの回
転速度の所定時間内における上昇値は所定値以下になる
という点に着目した方法である。然し、トラクションコ
ントロールが正常に機能しなくても、アクセルペダルの
踏込み具合によってはローラ回転速度の所定時間内の上
昇値が所定値以下になることがあり、上記検査方法では
この場合にも合格と判定されてしまい、判定が不正確に
なる。本発明は、以上の点に鑑み、トラクションコント
ロールの検査の正確性を高めることをその目的としてい
る。In the above-mentioned inspection of the traction control, when the accelerator pedal is depressed, a difference in rotational speed is generated between the driving wheel and the driven wheel (not rotating), and the traction control is not functioning properly. This is a method that focuses on the point that the increase in the speed of the drive wheels is suppressed, and the increase value of the rotation speed of the drive wheel rollers within a predetermined time is equal to or less than a predetermined value. However, even if the traction control does not function normally, the rise value of the roller rotation speed within a predetermined time may be less than or equal to a predetermined value depending on how much the accelerator pedal is stepped on. It will be judged and the judgment will be incorrect. The present invention has been made in view of the above points, and an object thereof is to improve the accuracy of inspection of traction control.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成すべく、
本発明は、自動車の駆動輪を乗せる第１のローラと従動
輪を乗せる第２のローラとを備える検査装置を用いてト
ラクションコントロールの検査を行う方法であって、駆
動輪と従動輪とを夫々第１と第２のローラに乗せた状態
で自動車を走行させ、第２のローラが第１のローラに連
動して回転するようにした状態で両ローラの回転速度が
所定速度に上昇したとき、両ローラの連動を解いて第２
のローラを減速させ、この減速時における第２のローラ
の速度変化に対する第１のローラの速度変化の相関関係
からトラクションコントロールの良否を判定すると共
に、減速時の第１のローラの最高速度に応じて良否判定
の基準値を補正するようにしたことを特徴とする。[Means for Solving the Problems] In order to achieve the above object,
The present invention is a method for inspecting traction control using an inspection device including a first roller for mounting a drive wheel of an automobile and a second roller for mounting a driven wheel, wherein the drive wheel and the driven wheel are respectively inspected. When the automobile is run while being placed on the first and second rollers, and the rotation speed of both rollers is increased to a predetermined speed while the second roller is rotated in conjunction with the first roller, Release the interlocking of both rollers
The speed of the first roller is decelerated, and whether the traction control is good or bad is determined from the correlation between the speed change of the first roller and the speed change of the second roller during the deceleration, and the maximum speed of the first roller during deceleration is determined. It is characterized in that the reference value for pass / fail judgment is corrected.
【０００５】[0005]
【作用】第２のローラを減速すると、第１と第２の両ロ
ーラ間即ち両ローラに乗せた駆動輪と従動輪との間に回
転速度差が発生し、駆動輪のスリップが発生したと判断
されてトラクションコントロールが作動し、駆動輪即ち
これを乗せる第１のローラの回転速度が第２のローラの
回転速度の減少に応じて減少される。従って、第２のロ
ーラの速度変化に対する第１のローラの速度変化の相関
関係を見て、トラクションコントロールが正常に機能し
たときの駆動輪のスリップ率に従った所定の関係になっ
ているか否かでトラクションコントロールの良否を判定
できるようになる。ところが、アクセルペダルを強く踏
込んでいると、第２のローラの減速でトラクションコン
トロールが作動し始めても駆動輪はなかなか減速せず、
駆動輪の回転速度が一旦大きくオーバーシュートしてし
まい、第１のローラの回転速度が良否判定の基準値から
ずれ、トラクションコントロールが正常であっても不良
と判定されてしまう。然し、本発明では、第２のローラ
の減速時における第１のローラの最高速度即ち駆動輪の
回転速度のオーバーシュート高さに応じて良否判定の基
準値が補正されるため、第１のローラの回転速度のオー
バーシュートに起因した基準値からのずれを加味して良
否判定を行い得られるようになり、アクセルペダルの踏
込み具合の如何に係わらずトラクションコントロールの
良否を正確に判定できる。When the second roller is decelerated, a difference in rotational speed occurs between the first and second rollers, that is, between the drive wheel and the driven wheel placed on both rollers, and slippage of the drive wheel occurs. As a result of the determination, the traction control is activated, and the rotation speed of the drive wheel, that is, the first roller on which the drive wheel is placed is decreased in accordance with the decrease in the rotation speed of the second roller. Therefore, by looking at the correlation between the change in speed of the first roller and the change in speed of the second roller, it is determined whether or not there is a predetermined relationship according to the slip ratio of the driving wheels when the traction control functions normally. You can now judge the quality of traction control. However, if the accelerator pedal is strongly depressed, even if the traction control starts operating due to the deceleration of the second roller, the drive wheels do not slow down easily,
The rotation speed of the drive wheel once overshoots greatly, the rotation speed of the first roller deviates from the reference value for the quality judgment, and even if the traction control is normal, it is judged to be defective. However, in the present invention, since the reference value of the quality judgment is corrected according to the maximum speed of the first roller during deceleration of the second roller, that is, the overshoot height of the rotation speed of the driving wheels, the first roller is corrected. It becomes possible to determine whether the traction control is good or bad regardless of how much the accelerator pedal is stepped on, by taking into account the deviation from the reference value due to the overshoot of the rotation speed of the.
【０００６】[0006]
【実施例】図１は自動車のトラクションコントロールを
含む各種機能の検査を行う検査装置を示し、該装置は、
前輪用の左右１対のローラ１1、１1と後輪用の左右１対
のローラ１2、１2とを備え、前輪用の１対のローラ
１1、１1間に該各ローラ１1を夫々クラッチ２1を介して
連結したギアボックス３1と、後輪用の１対のローラ
１2、１2間に該各ローラ１2を夫々クラッチ２2を介して
連結したギアボックス３2とを配置し、両ギアボックス
３1、３2を連結軸４を介して連結し、前記各ローラに各
車輪を乗せて自動車を走行させたとき、前輪が駆動輪の
場合は、ローラ１1とクラッチ２1とギアボックス３1と
連結軸４とギアボックス３2とクラッチ２2とローラ１2
とを介して従動輪たる後輪が回転され、後輪が駆動輪の
場合には、上記とは逆の経路で前輪が回転されるように
した。前輪用のローラ１1、１1は固定台５上に、又後輪
用のローラ１2、１2は前後動自在な摺動台６上に設けら
れており、前記連結軸４の後部をスリーブ４ａとこれに
嵌合するスプライン軸４ｂとで伸縮自在な構造とし、摺
動台６の動きにより自動車の軸距に合わせて前輪用のロ
ーラ１1と後輪用ローラ１2との間の距離を調整し得るよ
うにした。FIG. 1 shows an inspection apparatus for inspecting various functions including traction control of an automobile.
Roller 1 1 of a pair of left and right front wheel, 1 1 and a pair of right and left roller 1 2 for the rear wheels, 1 2 and includes a respective roller 1 between the rollers 1 1, 1 1 of a pair of front-wheel 1 and gearbox 3 1 linked via a respective clutch 2 1, roller 1 of a pair of rear wheel 2, first gear box 3 and the respective roller 1 2 connected via a respective clutch 2 2 between 2 2 and the two gearboxes 3 1 and 3 2 are connected to each other via a connecting shaft 4, and when each wheel is placed on each roller and an automobile is driven, if the front wheels are drive wheels, the roller 1 1 , clutch 2 1 , gearbox 3 1 , connecting shaft 4, gearbox 3 2 , clutch 2 2 and roller 1 2
The rear wheels, which are the driven wheels, are rotated via the, and when the rear wheels are the drive wheels, the front wheels are rotated by a route opposite to the above. Roller 1 1 for the front wheels, 1 1 on the fixed stand 5, and roller 1 2, 1 2 for the rear wheels is provided on the moving freely sliding table 6 back and forth, the rear portion of the connecting shaft 4 a telescopic structure in the sleeve 4a and the spline shaft 4b which is fitted thereto, between the rollers 1 1 and the rear-wheel roller 1 2 for the front wheels in accordance with the wheelbase of the motor vehicle by the movement of the sliding base 6 I was able to adjust the distance.
【０００７】前記各ローラ１1、１2は、同期回転するよ
うにベルト７を介して連結した前後１対の分割ローラ１
ａ、１ｂで構成されており、各ローラ１1、１2の後側の
分割ローラ１ｂにフライホイール８を連結し、該分割ロ
ーラ１ｂとフライホイール８との間に回転速度計及びト
ルクメータを有する検出手段９を配設し、検出手段９か
らの信号をマイクロコンピュータから成るモニター装置
１０に入力して、各種の検査を行うようにした。また、
前輪用の１対のローラ１1、１1の少なくとも一方と、後
輪用の１対のローラ１2、１2の少なくとも一方とに夫々
フライホイール８において制動力を作用させるブレーキ
から成る制動手段１１1、１１2を設けた。The rollers 1 1 and 1 2 are connected to each other through a belt 7 so as to rotate synchronously, and a pair of front and rear split rollers 1 is provided.
a, is composed of 1b, connects the flywheel 8 on the rollers 1 1, 1 2 of the rear of the split roller 1b, a tachometer and a torque meter between the divided roller 1b and the flywheel 8 The detecting means 9 is provided and the signal from the detecting means 9 is input to the monitor device 10 composed of a microcomputer to perform various inspections. Also,
Braking means comprising a brake for applying a braking force on the flywheel 8 to at least one of the pair of rollers 1 1 and 1 1 for the front wheels and at least one of the pair of rollers 1 2 and 1 2 for the rear wheels. 11 1 and 11 2 are provided.
【０００８】次に、上記検査装置によるトラクションコ
ントロールの検査手順を説明する。尚、自動車は前輪駆
動式とする。自動車の各車輪を各ローラ１1、１2に乗
せ、各クラッチ２1、２2を接続した状態で作業者がアク
セルペダルを踏込んで自動車をローラ上で走行させる。
この場合、駆動輪たる前輪の回転がローラ１1から上記
の経路でローラ１2に伝達されて従動輪たる後輪も前輪
と等速度で同期回転する。Next, the procedure of the traction control inspection by the above inspection device will be described. The vehicle is of the front-wheel drive type. Place each vehicle wheel to the rollers 1 1, 1 2, the operator in a state that connects each clutch 2 1, 2 2 to run the car on the roller depresses the accelerator pedal.
In this case, the drive wheels serving front wheel rotation also rotates synchronously with the front wheels and the constant speed rear wheel is transmitted from the roller 1 1 to the roller 1 2 above routes serving driven wheel.
【０００９】そして、ローラ１1、１2の回転速度が所定
速度Ｖｓに上昇したところで前輪用ローラ１1のクラッ
チ２1を切って前輪用ローラ１1と後輪用ローラ１2とが
互に独立して回転し得るようにし、且つ後輪用ローラ１
2の制動手段１１2を作動させて該ローラ１2を図２にａ
線で示す如く減速させる。これによれば、前輪と後輪と
の間に回転速度差を生じてトラクションコントロールが
働き、前輪の回転速度Ｖ1と後輪の回転速度Ｖ2とから求
められるスリップ率λ＝（Ｖ1−Ｖ2）／Ｖ1が所定の設
定値λ１に維持されるようにエンジンの出力制御が行わ
れ、所定速度Ｖｓに上昇するまでの加速度合が図２にｂ
線で示す如く緩やかであれば、前輪即ち前輪用ローラ１
1は、その回転速度Ｖ1と後輪用ローラ１2の回転速度Ｖ2
との関係がＶ1＝Ｖ2／（１−λ１）となるように、後輪
用ローラ１2の減速に応じて図２のｃ線で示すように所
定の相関関係を持って減速される。[0009] Then, the roller 1 1, 1 2 of the rotational speed and the front wheel roller 1 1 and the rear-wheel roller 1 2 off the clutch 2 1 of the front wheel roller 1 1 was raised to a predetermined speed Vs mutually Roller 1 for the rear wheel that can rotate independently
2 of the braking means 11 2 is operated a the roller 1 2 2
Decelerate as shown by the line. According to this, a rotation speed difference is generated between the front wheels and the rear wheels to operate the traction control, and the slip ratio λ = (V 1 −, which is obtained from the rotation speed V 1 of the front wheels and the rotation speed V 2 of the rear wheels. The output of the engine is controlled so that V 2 ) / V 1 is maintained at the predetermined set value λ1, and the acceleration rate until the speed reaches the predetermined speed Vs is shown in FIG.
If it is gentle as shown by the line, the front wheel, that is, the front wheel roller 1
1, the rotation speed V 2 of the rotational speed V 1 and the rear-wheel roller 1 2
Is decelerated with a predetermined correlation as shown by line c in FIG. 2 in accordance with the relationship such that a V 1 = V 2 / (1 -λ1), the deceleration of the rear wheel roller 1 2 and .
【００１０】然し、アクセルペダルが強く踏込まれてい
て加速度合が図２のｄ線で示す如く急になると、後輪用
ローラ１2の減速でトラクションコントロールが作動し
ても前輪用ローラ１1が減速されるまでに時間がかか
り、該ローラ１1の回転速度が図２のｅ線で示す如く大
きくオーバーシュートしてしまい、上記した関係式が成
立するような速度に減速されるまでには時間がかかる。
ここで、検査に要する時間を短縮して能率アップを図る
には、前輪用ローラ１1の回転速度がオーバーシュート
の最高点に到達した後の比較的短時間のデータサンプリ
ングで良否判定を行い得られるようにすることが望ま
れ、前輪用ローラ１1が上記した関係式が成立する速度
に減速されるまで待つことはできない。However, when the accelerator pedal is strongly depressed and the acceleration rate becomes steep as shown by the line d in FIG. 2, even if the traction control is activated by decelerating the rear wheel roller 1 2 , the front wheel roller 1 1 takes some time to decelerate the rotational speed of the roller 1 1 ends up greatly overshoots as shown by the e-line of FIG. 2, time until relational expression described above can be decelerated to a speed which satisfies Takes.
Here, the attempt to efficiency up to shorten the time required for the inspection, resulting performs quality determination in a relatively short period of data sampling after the rotational speed of the front wheel roller 1 1 has reached the highest point of the overshoot it is desired that way is not possible to wait until the front-wheel roller 1 1 is decelerated to a speed at which the relational expression described above is satisfied.
【００１１】そこで、本実施例では、前輪用ローラ１1
の回転速度のオーバーシュートに影響されずに良否判定
を行い得られるよう、後輪用ローラ１2の減速時におけ
る前輪用ローラ１1の最高速度Ｖ1ｍａｘを検出し、Ｖ1
ｍａｘに応じて良否判定の基準値を補正するようにし
た。これを詳述するに、上記関係式を満足するＶ1を基
準値として、オーバーシュートによって生ずる基準値か
らのずれ量△Ｖを、前輪用ローラ１1の最高速度Ｖ1ｍａ
ｘとその時点における後輪用ローラ１2の回転速度Ｖ2ｍ
ａｘとから、次式 △Ｖ＝Ｖ1ｍａｘ−｛Ｖ2ｍａｘ／（１−λ１）｝ で求め、許容誤差をＡ（０＜Ａ＜１）として、判定基準
の上限ＶＵと下限ＶＬとを、 ＶＵ＝△Ｖ＋｛（１＋Ａ）Ｖ2／（１−λ１）｝ ＶＬ＝△Ｖ＋｛（１−Ａ）Ｖ2／（１−λ１）｝ に設定し、前輪用ローラ１1の回転速度Ｖ1がＶ1ｍａｘ
になった時点から所定の計測時間ｔ内におけるＶ1がＶ
ＬとＶＵとの間の基準範囲に入っているか否かで良否判
定を行うようにした。Therefore, in this embodiment, the front wheel roller 1 1
Like obtained performs quality determination without being affected by the overshoot in the rotation speed, it detects the maximum speed V 1 max of the front roller 1 1 during deceleration of the rear wheel roller 1 2, V 1
The reference value for pass / fail judgment is corrected according to max. This will be described in detail. With V 1 satisfying the above relational expression as a reference value, the deviation amount ΔV from the reference value caused by overshoot is calculated as the maximum speed V 1 ma of the front wheel roller 1 1.
x and the rotation speed V 2 m of the rear wheel roller 1 2 at that time
From ax, the following expression ΔV = V 1 max- {V 2 max / (1-λ1)} is obtained, and the allowable error is A (0 <A <1), and the upper limit VU and the lower limit VL of the determination standard are set. , VU = △ V + {( 1 + a) V 2 / (1-λ1)} VL = △ V + {(1-a) V 2 / (1-λ1)} is set to the rotational speed V of the front wheel roller 1 1 1 is V 1 max
V 1 becomes V within a predetermined measurement time t from the point when
The quality judgment is made based on whether or not it is within the reference range between L and VU.
【００１２】[0012]
【発明の効果】以上の説明から明らかなように、本発明
によれば、アクセルペダルの踏込み具合の如何に係わら
ずトラクションコントロールの良否を正確に且つ能率良
く判定できる効果を有する。As is apparent from the above description, according to the present invention, it is possible to accurately and efficiently determine the quality of traction control regardless of how the accelerator pedal is depressed.
【図１】 本発明方法の実施に用いる検査装置の平面図FIG. 1 is a plan view of an inspection device used for carrying out the method of the present invention.
【図２】 トラクションコントロールによるローラの速
度変化を示すグラフFIG. 2 is a graph showing changes in roller speed due to traction control.
１1 前輪用ローラ（第１のローラ） １2 後輪用ローラ（第２のローラ） ９ 検出手段 １０ モニタ装置1 1 Front Wheel Roller (First Roller) 1 2 Rear Wheel Roller (Second Roller) 9 Detecting Means 10 Monitor Device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 中園 佳治 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 (72)発明者 松本 義道 埼玉県狭山市新狭山１丁目10番地１ ホン ダエンジニアリング株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kaji Nakazono 1-10-1 Shin-Sayama, Sayama-shi, Saitama Prefecture Within Honda Engineering Co., Ltd. (72) Yoshimichi Matsumoto 1-10-1 Shin-Sayama, Sayama-shi, Saitama Prefecture Within Da Engineering Co., Ltd.
Claims (1)
従動輪を乗せる第２のローラとを備える検査装置を用い
てトラクションコントロールの検査を行う方法であっ
て、駆動輪と従動輪とを夫々第１と第２のローラに乗せ
た状態で自動車を走行させ、第２のローラが第１のロー
ラに連動して回転するようにした状態で両ローラの回転
速度が所定速度に上昇したとき、両ローラの連動を解い
て第２のローラを減速させ、この減速時における第２の
ローラの速度変化に対する第１のローラの速度変化の相
関関係からトラクションコントロールの良否を判定する
と共に、減速時の第１のローラの最高速度に応じて良否
判定の基準値を補正するようにしたことを特徴とするト
ラクションコントロールの検査方法。1. A method for inspecting traction control using an inspection device comprising a first roller for mounting a drive wheel of a vehicle and a second roller for mounting a driven wheel, the method comprising: When the automobile is run while being placed on the first and second rollers, respectively, and the rotation speed of both rollers is increased to a predetermined speed while the second roller is rotated in conjunction with the first roller. , The second roller is decelerated by releasing the interlocking of both rollers, and whether the traction control is good or bad is determined from the correlation between the speed change of the first roller and the speed change of the second roller at the time of deceleration. The method for inspecting traction control is characterized in that the reference value for pass / fail judgment is corrected according to the maximum speed of the first roller.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4287932A JP2711781B2 (en) | 1992-10-26 | 1992-10-26 | Inspection method of traction control |
| US08/001,291 US5402676A (en) | 1992-02-28 | 1993-01-06 | Method and apparatus for inspecting various running control functions of a motorcar |
| GB9303153A GB2264567B (en) | 1992-02-28 | 1993-02-17 | Method and apparatus for inspecting a traction control system |
| GB9500653A GB2284271B (en) | 1992-02-28 | 1993-02-17 | Inspecting steering interrelated control functions of a motor vehicle |
| US08/356,916 US5483823A (en) | 1992-02-28 | 1994-12-15 | Method and apparatus for inspecting various running control functions of a motorcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4287932A JP2711781B2 (en) | 1992-10-26 | 1992-10-26 | Inspection method of traction control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06138001A true JPH06138001A (en) | 1994-05-20 |
| JP2711781B2 JP2711781B2 (en) | 1998-02-10 |
Family
ID=17723601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4287932A Expired - Fee Related JP2711781B2 (en) | 1992-02-28 | 1992-10-26 | Inspection method of traction control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2711781B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021018077A (en) * | 2019-07-17 | 2021-02-15 | 彌榮精機株式会社 | Vehicle inspection device |
-
1992
- 1992-10-26 JP JP4287932A patent/JP2711781B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021018077A (en) * | 2019-07-17 | 2021-02-15 | 彌榮精機株式会社 | Vehicle inspection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2711781B2 (en) | 1998-02-10 |
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