JPH0735649A - Method for evaluating performance of anti-lock brake system - Google Patents

Method for evaluating performance of anti-lock brake system

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Publication number
JPH0735649A
JPH0735649A JP5176343A JP17634393A JPH0735649A JP H0735649 A JPH0735649 A JP H0735649A JP 5176343 A JP5176343 A JP 5176343A JP 17634393 A JP17634393 A JP 17634393A JP H0735649 A JPH0735649 A JP H0735649A
Authority
JP
Japan
Prior art keywords
braking force
abs
change
brake
vehicle
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
JP5176343A
Other languages
Japanese (ja)
Other versions
JP3057965B2 (en
Inventor
Koji Yamamoto
浩二 山本
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP5176343A priority Critical patent/JP3057965B2/en
Publication of JPH0735649A publication Critical patent/JPH0735649A/en
Application granted granted Critical
Publication of JP3057965B2 publication Critical patent/JP3057965B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE:To quantitatively evaluate the performance of an ABS with high accuracy by testing on a stage, by a method whereby a vehicle on the stage is put on the brake, the generating number of times of the change of the brake force and whether the brake force exceeds a permissible limit are detected, and whether the ABS(anti-lock brake system) performs properly is totally determined. CONSTITUTION:When a vehicle equipped with an ABS is braked, it is controlled so that, the brake force is reduced before the rotation of wheels becomes 0, and increased when the wheels start to rotate again. The brake force is changed like a waveform through repeated operations as above. In order to evaluate the ABS, how many times the change of the brake force of an amplitude between upper and lower reference levels (a) and (b) is repeated in a preset measuring time T is counted by a control unit. Only when the number of times is a preset regular number of times or more, and further not beyond the preset upper and lower permissible limit levels (c), (d) the ABS is determined to operate normally.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、車両に搭載されたアン
チロックブレーキシステムの性能試験を行ってその性能
を評価する方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of performing a performance test of an antilock brake system mounted on a vehicle and evaluating its performance.

【0002】[0002]

【従来の技術とその課題】近年、自動車のブレーキとし
てアンチロック(もしくはアンチスキッド)ブレーキシ
ステム(Anti Lock(Skid) Brake
Systemを略して、以下ABSと称する)が採用
されている(例えば特開平2−6252号公報参照)。
2. Description of the Related Art In recent years, an anti-lock (or anti-skid) brake system (anti-lock (skid) brake) has been used as a vehicle brake.
The system is abbreviated as ABS hereinafter) is adopted (see, for example, Japanese Patent Application Laid-Open No. 2-6252).

【0003】一般に、急制動時や雪路などの滑りやすい
路面で制動をかけたとき、車輪はロックしやすく車両の
安定性が損われ、制動停止距離が長くなることから、A
BSでは、制動時の車輪回転数を検出し、制動力(ブレ
ーキ液圧)をコントロールして車輪のロックを防止し、
制動性能および制動時の旋回性能等の向上を目的として
いるものである。
Generally, during sudden braking or when braking on a slippery road surface such as a snowy road, the wheels are easily locked, the stability of the vehicle is impaired, and the braking stop distance becomes long.
The BS detects the wheel rotation speed during braking and controls the braking force (brake hydraulic pressure) to prevent the wheels from locking,
The purpose is to improve braking performance and turning performance during braking.

【0004】一方、ABSの性能を的確に定量評価する
方法は今だ確立されておらず、一般的には低摩擦抵抗路
(低μ路)等で実走行を行って急制動をかけ、その時の
ABSの作動状態を官能的に評価するにとどまってい
る。
On the other hand, a method for accurately and quantitatively evaluating the ABS performance has not been established yet, and generally, the vehicle is actually run on a low friction resistance road (low μ road) or the like to apply a sudden braking, and at that time. It only sensually evaluates the operating state of ABS.

【0005】すなわち、ABSは、図5に示すように、
車輪11の回転数を車輪回転センサ12で検出してコン
トロールユニット13に送ってこれを監視し、車輪11
の回転が0となる(スリップする)前に電磁弁14を作
動させて、ブレーキ15に加わる制動力を絞る制御を行
う。再び車輪11が回転し始めると制動力を強める制御
を行い、このような動作を何回か繰り返すことにより、
制動力が図6に示すように波形状に変化する。なお、1
6はブレーキペダル、17はマスターシリンダである。
That is, the ABS is, as shown in FIG.
The rotation number of the wheel 11 is detected by the wheel rotation sensor 12 and is sent to the control unit 13 to monitor this.
The solenoid valve 14 is actuated before the rotation becomes zero (slip) to control the braking force applied to the brake 15. When the wheel 11 starts to rotate again, control is performed to increase the braking force, and by repeating such an operation several times,
The braking force changes into a wave shape as shown in FIG. 1
Reference numeral 6 is a brake pedal, and 17 is a master cylinder.

【0006】したがって、図6に示すような波形状の制
動力変化が表われることがABSが正常に作動している
証となる。同時に、上記のようなABSの作動による制
動力変化に伴いブレーキペダル16にはキックバックと
称される反力Fが生じる。
Therefore, the appearance of a wavy braking force change as shown in FIG. 6 is a proof that the ABS is operating normally. At the same time, a reaction force F called kickback is generated on the brake pedal 16 due to the change in the braking force due to the operation of the ABS as described above.

【0007】このようなことから、従来は、低μ路に実
車を持ち込んで走行状態から車両に急制動をかけ、実際
に車輪11がロックしないかどうか、ならびにブレーキ
ペダル16にキックバックが生じているかどうかを検査
員の官能で評価するようにしている。
In view of the above, conventionally, when an actual vehicle is brought into a low μ road and the vehicle is suddenly braked from a running state, whether or not the wheels 11 are actually locked and whether or not the brake pedal 16 is kicked back is generated. The inspector's sensuality is used to evaluate whether there is any.

【0008】このため、従来の評価方法では、自動車の
製造ラインにおいてインラインでABSの性能評価を行
うことができないばかりでなく、実走行試験のために大
規模な設備と多大な試験工数が必要であり、ABSの性
能について高精度な定量評価を行うことはきわめて困難
であった。
Therefore, in the conventional evaluation method, not only the ABS performance evaluation cannot be performed in-line in the automobile production line, but also a large-scale facility and a great number of test man-hours are required for the actual running test. Therefore, it has been extremely difficult to perform highly accurate quantitative evaluation of ABS performance.

【0009】本発明は以上のような従来の課題に着目し
てなされたもので、その目的とするところは、ABSの
性能評価を台上試験で定量的に、しかも高精度に行うこ
とができるようにした方法を提供することにある。
The present invention has been made by paying attention to the above-mentioned conventional problems, and the purpose thereof is to be able to quantitatively and highly accurately perform ABS performance evaluation by a bench test. Is to provide a method like that.

【0010】[0010]

【課題を解決するための手段】本発明は、ブレーキテス
ター上に乗せた車両のブレーキ操作を行って、その車両
に搭載されているアンチロックブレーキシステムの性能
を評価する方法であって、前記ブレーキ操作を行った時
の車輪の制動力を検出してその制動力変化を監視すると
ともに、上下の制動力基準レベルの値と上下の許容限界
制動力レベルの値をそれぞれに予め設定しておき、予め
設定された規定時間内に上下の制動力基準レベルにまた
がる振幅の制動力変化が何回発生したか計数するととも
に、前記規定時間内に制動力が許容限界制動力レベルを
越えたかどうかチェックし、前記制動力変化の計数回数
と、制動力が許容限界レベルを越えたか否かにより総合
的にアンチロックブレーキシステムの性能の適否を判定
することを特徴としている。
SUMMARY OF THE INVENTION The present invention is a method for evaluating the performance of an anti-lock brake system mounted on a vehicle by performing a brake operation of the vehicle mounted on a brake tester. While detecting the braking force of the wheels when the operation is performed and monitoring the change in the braking force, the values of the upper and lower braking force reference levels and the upper and lower allowable limit braking force levels are set in advance respectively. It counts how many times the changes in the amplitude of the braking force across the upper and lower braking force reference levels occur within the preset specified time, and also checks whether the braking force exceeds the allowable limit braking force level within the specified time. , The suitability of the performance of the anti-lock brake system is comprehensively determined based on the number of times the braking force is changed and whether the braking force exceeds an allowable limit level. To have.

【0011】[0011]

【作用】この方法によると、図6に示すように制動力変
化が波形状となって表われるのがABSが正常に作動し
ている証であることから、上下の制動力基準レベルにま
たがる振幅の制動力変化が何回繰り返されたかを計数
し、その回数が予め設定された規定回数を越えていて、
なおかつ制動力が一度でも上下の許容限界制動力レベル
を越えていないことを条件として、ABSが正常である
と判定され、それ以外の場合にはいずれもABSが正常
でないと判定されることになる。
According to this method, since the change in the braking force appears as a wavy shape as shown in FIG. 6 because it is a proof that the ABS is operating normally, the amplitude over the upper and lower braking force reference levels is shown. The number of times the braking force change was repeated was counted, and the number of times exceeded the preset number of times set in advance,
Moreover, ABS is determined to be normal, provided that the braking force does not exceed the upper and lower allowable limit braking force levels even once, and in all other cases, it is determined that ABS is not normal. .

【0012】[0012]

【実施例】図2,3は本発明方法を実施する四輪ブレー
キテスターの概略説明図であって、同図に示すように、
四輪ブレーキテスター1に車両2を乗り入れて、そのロ
ーラ3上に各車輪4を位置させるとともに、シリンダ5
により昇降駆動されるガイドローラ6にて車両2の前後
方向の移動を拘束する。これは、車両2の動きに伴う制
動力変化量を最小にするためである。
2 and 3 are schematic explanatory views of a four-wheel brake tester for carrying out the method of the present invention. As shown in FIG.
The vehicle 2 is loaded into the four-wheel brake tester 1, each wheel 4 is positioned on the roller 3, and the cylinder 5
The guide roller 6 that is driven to move up and down restricts the movement of the vehicle 2 in the front-rear direction. This is to minimize the amount of change in braking force due to the movement of the vehicle 2.

【0013】一方、前記各車輪4に接しているローラ3
をベルトあるいはチェーン等の巻掛伝達手段7を介して
ギヤードモータ8により回転駆動し、これらのローラ3
の回転により各車輪4を連れ回りさせる。
On the other hand, the rollers 3 in contact with the respective wheels 4
Is rotated by a geared motor 8 via a winding transmission means 7 such as a belt or a chain, and these rollers 3
The wheels 4 are rotated together with the rotation of.

【0014】そして、前記ギヤードモータ8に付設され
たロードセル9により各車輪4の制動力を検出して信号
処理装置10で監視する一方、検査員が車両2のブレー
キペダルを踏み込むと制動力が上昇することから、これ
によってABSの性能を信号処理装置10で評価する。
The load cell 9 attached to the geared motor 8 detects the braking force of each wheel 4 and the signal processing device 10 monitors the braking force. On the other hand, when the inspector depresses the brake pedal of the vehicle 2, the braking force increases. Therefore, the performance of the ABS is evaluated by the signal processing device 10 based on this.

【0015】ここで、図1および図6に示すように、A
BSの正常作動時にはその制動力が波形状に変化するこ
とは先に述べたとおりであるが、ABSが正常でない挙
動をした場合には制動力が波形状に変化しながらその振
幅が大きく変動することから、図1に示すように、上下
の制動力基準レベルa,bと同じく上下の許容限界制動
力レベルc,d、ならびに計測時間Tを予め図2の信号
処理装置10に記憶設定しておく。なお、eはABSが
正常でない場合の制動力のピークレベル、fは同じくA
BSが正常である場合の制動力のピークレベルである。
Here, as shown in FIG. 1 and FIG.
As described above, the braking force changes into a wave shape during normal operation of the BS, but when the ABS behaves abnormally, the braking force changes into a wave shape and its amplitude fluctuates greatly. Therefore, as shown in FIG. 1, the upper and lower allowable braking force levels c and d as well as the upper and lower braking force reference levels a and b, and the measurement time T are stored and set in advance in the signal processing device 10 of FIG. deep. Note that e is the peak level of the braking force when ABS is not normal, and f is the same as A.
It is the peak level of the braking force when the BS is normal.

【0016】そして、予め設定された計測時間T内にお
いて、上下の制動力基準レベルa,bにまたがる振幅の
制動力変化が何回繰り返されたかを計数し、その回数が
予め設定された規定回数以上であって、なおかつ計測時
間T内において制動力のレベルが上下の許容限界制動力
レベルc,dを逸脱しなかった場合に限り、ABSが正
常に作動しているものと判定するものである。
Then, within the preset measurement time T, it is counted how many times the change in the braking force of the amplitude across the upper and lower braking force reference levels a and b is repeated, and the number of times is counted to a preset specified number. Only when the level of the braking force does not deviate from the upper and lower allowable limit braking force levels c and d within the measurement time T, it is determined that the ABS is operating normally. .

【0017】なお、上記の制動力変化の計数回数だけで
ABSの性能の適否を判定することも可能ではある。し
かしながら、特に軸重の小さな車両においては、ABS
作動時の制動力変化の振幅が小さく、上記の上下の制動
力基準レベルa,b相互間のレベル差を小さくする必要
があり、このために、万一ABSが正常でない場合で
も、試験中の車両挙動による制動力変化でABSが正常
であると判定されてしまう可能性がある。このようなこ
とから、本実施例では、ABS性能の適否判定の精度を
高めるために、制動力変化の計数回数に加えて、上下の
許容限界制動力レベルc,dを越えたかどうかを、性能
適否判定の条件に加えている。
Incidentally, it is also possible to judge the suitability of the ABS performance only by the number of times of counting the change in the braking force. However, especially in vehicles with a low axle load, ABS
The amplitude of the change in the braking force during operation is small, and it is necessary to reduce the level difference between the above-mentioned upper and lower braking force reference levels a and b. Therefore, even if the ABS is not normal, the There is a possibility that the ABS is determined to be normal due to the change in the braking force due to the vehicle behavior. Therefore, in this embodiment, in order to improve the accuracy of the determination of the suitability of the ABS performance, in addition to the counting number of the braking force change, whether or not the upper and lower allowable limit braking force levels c and d are exceeded is determined. In addition to the conditions for judging suitability.

【0018】次に、本発明の一実施例を図1,4をもと
に詳細に説明すると、図2に示す四輪ブレーキテスター
1に試験対象となる車両2を乗り入れた上で、ローラ3
の回転により車輪4を連れ回りさせるまでは前述したと
おりである(図4のステップS1〜S4)。この時の各
車輪4の制動力は図2のロードセル9により検出された
上で信号処理装置10で監視されている。
Next, one embodiment of the present invention will be described in detail with reference to FIGS. 1 and 4. The vehicle 2 to be tested is put into the four-wheel brake tester 1 shown in FIG.
It is as described above until the wheels 4 are rotated together with the rotation (steps S1 to S4 in FIG. 4). The braking force of each wheel 4 at this time is detected by the load cell 9 of FIG. 2 and then monitored by the signal processing device 10.

【0019】そして、検査員が車両2のブレーキペダル
を踏み込むと、制動力が上昇してその度合に応じてAB
Sが作動し、図1に示すように制動力の変化が波形状と
なって表われる。
Then, when the inspector depresses the brake pedal of the vehicle 2, the braking force increases, and AB is increased depending on the degree.
When S operates, the change in the braking force appears as a wave shape as shown in FIG.

【0020】この制動力が変化する過程において、その
制動力のレベルが下側の許容限界制動力レベルdよりも
高くなったことを条件に計測時間Tのタイムカウントが
開始され(ステップS5)、信号処理装置10では上記
の計測時間Tがタイムアップするまでの間に、上下の制
動力基準レベルa,bにまたがる振幅の制動力変化が何
回繰り返されたを計数する一方、同じくその計測時間T
内に制動力レベルが上側もしくは下側の許容限界制動力
レベルcまたはdを越えたかどうかチェックする(ステ
ップS6〜S9)。
In the process of changing the braking force, the time count of the measurement time T is started on the condition that the level of the braking force becomes higher than the lower allowable limit braking force level d (step S5). The signal processing device 10 counts how many times the change in the braking force of the amplitude across the upper and lower braking force reference levels a and b is repeated until the above-mentioned measuring time T is timed up. T
It is checked whether or not the braking force level exceeds the upper or lower allowable limit braking force level c or d (steps S6 to S9).

【0021】すなわち、上記の制動力変化の回数の計数
にあたっては、制動力のレベルが上側の基準制動力レベ
ルaを越えたのちに下側の基準制動力レベルbを下回っ
たことを条件に、これを一回の制動力変化の回数として
計数する。
That is, in counting the number of changes in the braking force described above, the condition is that the level of the braking force exceeds the upper reference braking force level a and then drops below the lower reference braking force level b. This is counted as the number of times of one change in braking force.

【0022】そして、上記の計測時間T内において、制
動力レベルが一回でも上側もしくは下側の許容限界制動
力レベルcまたはdを越えた場合にはABSに何らかの
不具合があるものと判定して、直ちに「ABS NG処
理」を行い、例えば図示外の表示装置に「ABS N
G」の表示とそのNG項目とを表示させて、後工程での
ABSの再調整を指示した上で試験を終了する(ステッ
プS8,S9,S10,S12)。
If the braking force level exceeds the upper or lower allowable limit braking force level c or d even once within the measurement time T, it is determined that the ABS has some trouble. Immediately perform "ABS NG processing", and display, for example, "ABS NG" on a display device not shown.
The display of "G" and its NG item are displayed to instruct the readjustment of the ABS in the subsequent process, and then the test ends (steps S8, S9, S10, S12).

【0023】また、上記の計測時間T内において、制動
力変化の計数回数が予め設定された規定回数に達し、な
おかつ一度も上下の許容限界制動力レベルc,dを越え
なかった場合にはABSが正常であるとみなして、例え
ば前記表示装置に「ABSOK」の表示をさせて試験を
終了し(ステップS7,S8,S9,S11,S1
2)、他方、上記の計測時間Tがタイムアップした時点
で制動力変化の計数回数が規定回数に達しない場合に
は、上記と同様に「ABS NG」の表示とそのNG項
目とを表示させて、後工程でのABSの再調整を指示し
た上で、試験を終了する(ステップS6,S7,S1
0,S12)。
If the number of times the braking force change is counted reaches a preset number of times within the above-mentioned measurement time T and the upper and lower allowable braking force levels c and d are not exceeded even once, the ABS Is regarded as normal, the display device displays “ABSOK”, and the test ends (steps S7, S8, S9, S11, S1).
2) On the other hand, if the number of times the braking force change is counted does not reach the specified number at the time when the measurement time T is up, the display of "ABS NG" and its NG item are displayed in the same manner as above. Then, the ABS is readjusted in the subsequent process, and the test is finished (steps S6, S7, S1).
0, S12).

【0024】そして、試験終了後に、図2,3に示すロ
ーラ3の回転を停止させるとともに、ガイドローラ6を
下降させた上で車両2を退出させる(ステップS13,
S14,S15)。
After the test, the rotation of the roller 3 shown in FIGS. 2 and 3 is stopped, the guide roller 6 is lowered, and the vehicle 2 is exited (step S13,
S14, S15).

【0025】[0025]

【発明の効果】以上のように本発明によれば、車両に搭
載されたABSの性能評価をブレーキテスター上での台
上試験として実施できることから、車両一台ごとのAB
Sの性能をインラインで定量的に、しかも高精度に評価
できるようになって、その評価結果とABSそのものの
性能の信頼性が大幅に向上するほか、ABSの性能評価
に要する設備と工数を大幅に削減できる効果がある。
As described above, according to the present invention, the performance of the ABS mounted on the vehicle can be evaluated as a bench test on the brake tester.
The performance of S can be evaluated in-line quantitatively and with high accuracy, and the reliability of the evaluation results and the performance of ABS itself is greatly improved. In addition, the equipment and man-hours required for ABS performance evaluation are significantly increased. There is an effect that can be reduced.

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

【図1】本発明の一実施例を示す図で、制動力変化と上
下の制動力基準レベルおよび上下の許容限界制動力レベ
ルとの関係を示す説明図。
FIG. 1 is a diagram showing an embodiment of the present invention and is an explanatory diagram showing a relationship between a change in braking force, a reference level of upper and lower braking forces, and an upper and lower allowable limit braking force levels.

【図2】本発明が適用される四輪ブレーキテスターの概
略説明図。
FIG. 2 is a schematic explanatory diagram of a four-wheel brake tester to which the present invention is applied.

【図3】図2のA部拡大図。FIG. 3 is an enlarged view of part A of FIG.

【図4】本発明の一実施例を示す処理手順のフローチャ
ート。
FIG. 4 is a flowchart of a processing procedure showing an embodiment of the present invention.

【図5】アンチロックブレーキシステムの概略説明図。FIG. 5 is a schematic explanatory view of an antilock brake system.

【図6】アンチロックブレーキシステムの車輪回転数変
化と制動力変化との関係を示す説明図。
FIG. 6 is an explanatory diagram showing a relationship between a change in wheel speed and a change in braking force of the antilock brake system.

【符号の説明】[Explanation of symbols]

1…四輪ブレーキテスター 2…車両 3…ローラ 4…車輪 8…ギヤードモータ 9…ロードセル 10…信号処理装置 1 ... Four-wheel brake tester 2 ... Vehicle 3 ... Roller 4 ... Wheel 8 ... Geared motor 9 ... Load cell 10 ... Signal processing device

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ブレーキテスター上に乗せた車両のブレ
ーキ操作を行って、その車両に搭載されているアンチロ
ックブレーキシステムの性能を評価する方法であって、 前記ブレーキ操作を行った時の車輪の制動力を検出して
その制動力変化を監視するとともに、上下の制動力基準
レベルの値と上下の許容限界制動力レベルの値をそれぞ
れに予め設定しておき、 予め設定された規定時間内に上下の制動力基準レベルに
またがる振幅の制動力変化が何回発生したか計数すると
ともに、前記規定時間内に制動力が許容限界制動力レベ
ルを越えたかどうかチェックし、 前記制動力変化の計数回数と、制動力が許容限界レベル
を越えたか否かにより総合的にアンチロックブレーキシ
ステムの性能の適否を判定することを特徴とするアンチ
ロックブレーキシステムの性能評価方法。
1. A method of evaluating the performance of an antilock brake system mounted on a vehicle by performing a brake operation of a vehicle placed on a brake tester, the method comprising: The braking force is detected and the change in the braking force is monitored, and the upper and lower braking force reference levels and the upper and lower allowable limit braking force levels are set in advance, respectively, within the preset specified time. While counting the number of times the change in the braking force of the amplitude that crosses the upper and lower braking force reference levels, it is checked whether the braking force exceeds the allowable limit braking force level within the specified time, and the number of times the braking force change is counted. And whether or not the braking force exceeds the allowable limit level, the antilock brake system is comprehensively judged as to whether or not the performance of the antilock brake system is appropriate. System performance evaluation method.
JP5176343A 1993-07-16 1993-07-16 Performance evaluation method of anti-lock brake system Expired - Fee Related JP3057965B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5176343A JP3057965B2 (en) 1993-07-16 1993-07-16 Performance evaluation method of anti-lock brake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5176343A JP3057965B2 (en) 1993-07-16 1993-07-16 Performance evaluation method of anti-lock brake system

Publications (2)

Publication Number Publication Date
JPH0735649A true JPH0735649A (en) 1995-02-07
JP3057965B2 JP3057965B2 (en) 2000-07-04

Family

ID=16011935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5176343A Expired - Fee Related JP3057965B2 (en) 1993-07-16 1993-07-16 Performance evaluation method of anti-lock brake system

Country Status (1)

Country Link
JP (1) JP3057965B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001985A1 (en) * 1994-07-12 1996-01-25 Herbert Kallinich Process and device for testing an anti-lock control system in pressure-medium-actuated vehicle brakes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996001985A1 (en) * 1994-07-12 1996-01-25 Herbert Kallinich Process and device for testing an anti-lock control system in pressure-medium-actuated vehicle brakes

Also Published As

Publication number Publication date
JP3057965B2 (en) 2000-07-04

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