JPS5814060A - Method for judging proper function of car-carrying-type speed meter - Google Patents

Method for judging proper function of car-carrying-type speed meter

Info

Publication number
JPS5814060A
JPS5814060A JP11179181A JP11179181A JPS5814060A JP S5814060 A JPS5814060 A JP S5814060A JP 11179181 A JP11179181 A JP 11179181A JP 11179181 A JP11179181 A JP 11179181A JP S5814060 A JPS5814060 A JP S5814060A
Authority
JP
Japan
Prior art keywords
car
vehicle speed
vehicle
speed meter
value
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11179181A
Other languages
Japanese (ja)
Inventor
Tetsuo Kato
哲夫 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP11179181A priority Critical patent/JPS5814060A/en
Publication of JPS5814060A publication Critical patent/JPS5814060A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)

Abstract

PURPOSE:To reduce measuring errors in a vehicle speed tester by comparing a displayed locked value of a speed meter with a predetermined value, so that the needle of the car-carrying speed meter falls upon a standard value. CONSTITUTION:A car 11 is placed on the vehicle speed tester 1 whose rear drum 3 is turned by a command device 10. Its revolution is then transmitted to a vehicle speed calculator 4 so that the vehicle speed of the car 11 is displayed on a digital speed meter 6-9 of a speed display device. When the car-carrying speed meter displays a predetermined value by controlling the accelerator pedal, whereupon a lock switch 12 is pressed, the vehicle speeds given by the calculator 4 are lock-displayed on the corresponding indicators 7-0. Proper function of the car-carrying speed meter is evaluated by judging if the difference between the locked display value and the value displayed on the car-carrying speed meter exists within a standard value.

Description

【発明の詳細な説明】 本発明は自動車の組立ラインの後に設けられた検査場に
おいて車載のスピードメータが規格通り正しく車速を表
示するかどうかを判断する方法の改良に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for determining whether an on-vehicle speedometer is correctly displaying the vehicle speed according to standards at an inspection station provided after an automobile assembly line.

従来、車載スピードメータのチェックは自動車を車速テ
スタ上で検査者が運転する。すると、このときの車速か
車速テスタにより検出されて自動車の前方に位置したア
ナログ式のスピードメータに表示される。そして、この
ときの車載スピードメータの指針と車速テスタのスピー
ドメータの指針とを検査者がすばやく読み取り、データ
シートに記入していた。Conventionally, in-vehicle speedometers are checked by an inspector driving the vehicle on a vehicle speed tester. Then, the vehicle speed at this time is detected by a vehicle speed tester and displayed on an analog speedometer located at the front of the vehicle. Then, the inspector quickly read the pointer of the on-vehicle speedometer and the speedometer pointer of the vehicle speed tester at this time, and recorded them on the data sheet.

ところが、車載スピードメータの指針が規定位置に達し
たときの車速テスタのスピードメータの指針を読むが、
車速テスタのスピードメータは自動車の前方上方に設け
られているので、検査者は視線を大きく動かさなくては
ならず、この間にアクセルペダルの踏量が変って車速が
変化してしまい。However, when I read the speedometer pointer of the vehicle speed tester when the in-vehicle speedometer pointer reaches the specified position,
The speedometer of the vehicle speed tester is located above the front of the vehicle, so the inspector has to move his/her line of sight a lot, and during this time the amount of pressure on the accelerator pedal changes, causing the vehicle speed to change.

車速テスタのスピードメータの表示が車載スピードメー
タの指針が規定位置に達したときのものではなくなると
（・う不具合があった。There was a problem when the speedometer display on the vehicle speed tester was no longer the one when the needle on the vehicle speedometer reached the specified position.

本発明は上記不具合を解消するもので、車速テスタ上で
自動車を運転し、同自動車の車載スピードメータが所定
値を指示したときに検査者の指令にまり車速テスタのス
ピードメータの表示が一ツクされ、上記所定値と上記表
示とを比較し両者の差が規定値以内にあるかどうかを判
断することを特徴とする車載スピードメータの良否判定
方法に係るものであり、検査者は車載スピードメータが
所定値を示したときに車速テスタのスピードメータの表
示なロックさせる。そして、検査者は上記ロックされた
表示と上記所定値とを比較するもので。The present invention solves the above-mentioned problem, and when a car is driven on a vehicle speed tester and the vehicle's on-board speedometer indicates a predetermined value, the speedometer on the vehicle speed tester stops displaying due to the inspector's command. The present invention relates to a method for determining the quality of an on-vehicle speedometer, which is characterized by comparing the predetermined value and the display and determining whether the difference between the two is within a predetermined value. Locks the speedometer display of the vehicle speed tester when it shows a predetermined value. Then, the inspector compares the locked display with the predetermined value.

車速テスタのスピードメータの表示は車載スピードメー
タが規定値を示したときの値を保持するものであり、測
定誤差がなくなる。The speedometer display of the vehicle speed tester maintains the value when the vehicle-mounted speedometer indicated the specified value, eliminating measurement errors.

以下１本発明の一実施例について具体的に説明する。An embodiment of the present invention will be specifically described below.

第１図および第２図において、車速テスタ１は前輪を支
持する前ドラム２と後輪を支持する後ドラム３とを有し
、後ドラム３の回転軸は車速計算機４に連結され、スピ
ードメータをなすスピード表示装置５は上記車速計算機
４に接続され４つの第１〜第４デジタルスピードメータ
６．７，８．９を有している。指令装置１０は天井より
上下動可能に吊り下げられ、車速テスタ１上に載置され
た自動車１１の運転席側の窓の近傍に位置し、ロックス
イッチ１２とリセットスイッチ１３とを有している。In FIGS. 1 and 2, a vehicle speed tester 1 has a front drum 2 that supports front wheels and a rear drum 3 that supports rear wheels, and the rotating shaft of the rear drum 3 is connected to a vehicle speed calculator 4, The speed display device 5 is connected to the vehicle speed calculator 4 and has four first to fourth digital speedometers 6.7, 8.9. The command device 10 is suspended from the ceiling so as to be movable up and down, is located near the window on the driver's side of the vehicle 11 placed on the vehicle speed tester 1, and has a lock switch 12 and a reset switch 13. .

まず、検査員が自動車１１を運転して車速テスタ１上に
自動車１１を載置する。すると、指令装置１０が運転席
側の窓の外側近傍に位置しているので、検査員はこれを
手で握り、アクセルペダルを踏み込むと車輪が回転し、
これにより後ドラム６が回転する。すると、この回転が
車速計算機４に伝えられ、自動車の車速がスピード表示
装置５０４つのデジタルスピードメータ６．７，８．９
に送られ、上記メータ６〜９は車速を表示する。ここで
、検査員がアクセルペダルをフントロールして車載スピ
ードメータの指針が４０ＩａＶ／ｈを安定して指示する
ようにし、このとき、指令装置１００ロツクスイツチ１
２を押す。すると、このときの車速計算機４より得られ
た車速が第２デジタルスピードメータ７上にロックして
表示される。さらに、アクセルペダルを踏み車載スピー
ドメータが６０ｋｎ／ｈを安定して指示したときに、Ｒ
ツクスイッチ１２を押す。すると、第６デジタルスピー
ドメータ８上に車速計算機４により得られる車速がロッ
クされて表示される。また、アクセルペダルヲ踏み車載
スピードメータが８０ｖｈを安定して指示したときに、
−ツクスイッチ１２を押す。すると、第４デジタルスピ
ードメータ８上にこのとき車速計算機４により得られた
車速かロックして表示される。ここで、検査員はデータ
シートに第２〜第４デジタルスピードメータ７〜９の数
値を記入し、　　　　　　′　　　この数値と４０゜６
０．８０との差が規定値以内にあるかどうかで車載スピ
ードメータの良否を判断する。First, an inspector drives the automobile 11 and places the automobile 11 on the vehicle speed tester 1. Then, since the command device 10 is located near the outside of the window on the driver's side, the inspector grasps it with his hand and depresses the accelerator pedal, causing the wheels to rotate.
This causes the rear drum 6 to rotate. Then, this rotation is transmitted to the vehicle speed calculator 4, and the vehicle speed is displayed on the speed display device 50 and the four digital speedometers 6.7, 8.9.
The meters 6 to 9 display the vehicle speed. Here, the inspector rolls the accelerator pedal so that the pointer of the on-board speedometer stably indicates 40 IaV/h, and at this time, the command device 100 lock switch 1
Press 2. Then, the vehicle speed obtained from the vehicle speed calculator 4 at this time is locked and displayed on the second digital speedometer 7. Furthermore, when you press the accelerator pedal and the on-board speedometer stably indicates 60kn/h, R
Press switch 12. Then, the vehicle speed obtained by the vehicle speed calculator 4 is locked and displayed on the sixth digital speedometer 8. Also, when you press the accelerator pedal and the on-board speedometer stably indicates 80vh,
-Press the switch 12. Then, the vehicle speed obtained by the vehicle speed calculator 4 at this time is displayed in a locked manner on the fourth digital speedometer 8. Here, the inspector writes the values of the second to fourth digital speedometers 7 to 9 on the data sheet, and compares this value with 40°6.
The quality of the in-vehicle speedometer is judged based on whether the difference from 0.80 is within the specified value.

そして、上記数値の記入が終了するとリセットスイッチ
１３を押し、第２〜第４デジタルスピードメータ７〜９
の表示の一ツクを解除し、自動車１１を車速テスタ１か
ら搬出する。When the above numerical values have been entered, the reset switch 13 is pressed and the second to fourth digital speedometers 7 to 9
1 and remove the automobile 11 from the vehicle speed tester 1.

したがって、検査員はスピード表示装置５の車速表示を
すべての計測が終了した後に見ればよ（。Therefore, the inspector should look at the vehicle speed display on the speed display device 5 after all measurements have been completed.

検査員は車載スピードメータの指針を規定値に合せるこ
とに専念できるので測定誤差が少くなるものである。Since the inspector can concentrate on adjusting the pointer of the vehicle-mounted speedometer to the specified value, measurement errors are reduced.

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

第１図は本発明の一実施例の説明図、第２図は上記説明
図の指令装置１０の拡大図である。 １：車速テスタ、　　　５ニスピ一ド表示装置。 １０：指令装置FIG. 1 is an explanatory diagram of one embodiment of the present invention, and FIG. 2 is an enlarged view of the command device 10 shown in the above explanatory diagram. 1: Vehicle speed tester, 5 speed display device. 10: Command device

Claims (1)

【特許請求の範囲】[Claims] 車速テスタ上で自動車を運転し、同自動車の車載スピー
ドメータが所定値を指示したときに検査者の指令により
車速テスタのスピードメータの表示がロックされ、上記
所定値と上記表示とを比較し両者の差が規定値以内にあ
るかどうかを判断することを特徴とする車載スピードメ
ータの良否判定方法When a car is driven on the vehicle speed tester and the vehicle's on-board speedometer indicates a predetermined value, the speedometer display on the vehicle speed tester is locked by the inspector's command, and the predetermined value and the display are compared. A method for determining the quality of an in-vehicle speedometer, characterized by determining whether the difference between the two values is within a specified value.
JP11179181A 1981-07-17 1981-07-17 Method for judging proper function of car-carrying-type speed meter Pending JPS5814060A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11179181A JPS5814060A (en) 1981-07-17 1981-07-17 Method for judging proper function of car-carrying-type speed meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11179181A JPS5814060A (en) 1981-07-17 1981-07-17 Method for judging proper function of car-carrying-type speed meter

Publications (1)

Publication Number Publication Date
JPS5814060A true JPS5814060A (en) 1983-01-26

Family

ID=14570239

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11179181A Pending JPS5814060A (en) 1981-07-17 1981-07-17 Method for judging proper function of car-carrying-type speed meter

Country Status (1)

Country Link
JP (1) JPS5814060A (en)

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