JPH0441105B2 - - Google Patents
Info
- Publication number
- JPH0441105B2 JPH0441105B2 JP59128998A JP12899884A JPH0441105B2 JP H0441105 B2 JPH0441105 B2 JP H0441105B2 JP 59128998 A JP59128998 A JP 59128998A JP 12899884 A JP12899884 A JP 12899884A JP H0441105 B2 JPH0441105 B2 JP H0441105B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- tire
- signal
- valve
- air
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
- B60S5/04—Supplying air for tyre inflation
- B60S5/043—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system
- B60S5/046—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system using electrical or electronical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Description
【発明の詳細な説明】
（技術分野）
本発明は、自動車タイヤに圧縮空気を供給する
装置に関する。TECHNICAL FIELD The present invention relates to an apparatus for supplying compressed air to automobile tires.
（従来技術）
自動車タイヤへの空気の充填には、圧縮空気源
からの高圧空気を圧力調整弁により所定の圧力に
落とすことにより行なわれていた。しかしながら
空気圧の調整がバネ力との平衡に基づいて行なわ
れる関係上、設定された空気圧の誤差が大きいば
かりでなく、設定圧を精密に調整することができ
ないという問題がある。(Prior Art) Automobile tires are filled with air by reducing high pressure air from a compressed air source to a predetermined pressure using a pressure regulating valve. However, since the air pressure is adjusted based on balance with the spring force, there is a problem that not only is there a large error in the set air pressure, but also that the set pressure cannot be precisely adjusted.
このような問題を解決すべく、本出願人は、前
に、タイヤチヤツクの内圧を圧力センサにより測
定しつつキーボードから入力されたタイヤ圧設定
値となるように閉ループ制御を行なうデイジタル
型エアー供給装置を提案した。この装置によれ
ば、タイヤ圧を正確かつ精密に調整することがで
きる。 In order to solve these problems, the applicant previously developed a digital air supply device that measures the internal pressure of the tire chuck with a pressure sensor and performs closed-loop control so that the tire pressure setting value is input from the keyboard. Proposed. According to this device, tire pressure can be adjusted accurately and precisely.
しかしながら、このような流体を取扱う装置の
一般的な問題として、配管系からの漏洩や電磁止
弁の故障等が発生し易く、装置全体としての信頼
性が低いという問題を依然として抱えている。 However, as a general problem with devices that handle such fluids, leakage from the piping system and failure of the electromagnetic stop valve are likely to occur, and the reliability of the device as a whole is still low.
（目的）
本発明はこのような事情に鑑み、装置作動開始
時に配管系や電磁止弁を自己診断することにより
信頼性を向上させたエアー供給装置を提供するこ
とを目的とする。(Objective) In view of the above circumstances, it is an object of the present invention to provide an air supply device whose reliability is improved by self-diagnosing the piping system and the electromagnetic stop valve at the time of starting the operation of the device.
（構成）
すなわち、本発明の特徴とするところは、電磁
止弁１ａを介して圧縮空気源２にタイヤチヤツク
３を接続する一方、排気用の電磁弁１ｂにより大
気に開放可能とし、圧力検出手段４によりタイヤ
チヤツクの内圧を検出しながらタイヤ圧入力手段
５からの設定圧に一致するように電磁止弁１ａ，
１ｂを制御手段６により開閉するとともに、電源
投入により予め定められた手順に基づいて装置の
状態を検出し、異常が認められたときに装置本体
の作動を停止させる診断用シーケンスを格納した
チエツク手段７を設けた点にある。(Structure) That is, the characteristics of the present invention are that while the tire chuck 3 is connected to the compressed air source 2 via the electromagnetic stop valve 1a, it can be opened to the atmosphere by the exhaust electromagnetic valve 1b, and the pressure detection means 4 While detecting the internal pressure of the tire chuck, the electromagnetic stop valve 1a,
1b by the control means 6, detects the state of the device based on a predetermined procedure when the power is turned on, and stores a diagnostic sequence for stopping the operation of the device body when an abnormality is detected. The point is that we set the number 7.
そこで、以下に本発明の詳細を図示した実施例
に基づいて説明する。 Therefore, details of the present invention will be explained below based on illustrated embodiments.
第２図は、本発明の実施例を示す装置の外観図
であつて、図中符号８は、支柱９により据付けら
れた装置本体で、前面パネルにはタイヤ空気圧設
定値を入力するキイボード１０、設定圧や自己診
断時の故障モード等を表示する表示器１１、自己
診断時の警報音や空気補給動作中のメロデイー等
を発する報知器１２、及び確認済ランプ１３が設
けられ、図示されない圧縮空気発生源からパイプ
１４により供給される高圧空気を設定圧に調整し
てコイルホース１５を介してタイヤチヤツク１６
に供給するように構成されている。 FIG. 2 is an external view of a device showing an embodiment of the present invention, in which reference numeral 8 is the main body of the device installed by a support 9, and the front panel includes a keyboard 10 for inputting tire pressure settings; A display 11 that displays the set pressure and failure mode during self-diagnosis, an alarm 12 that emits an alarm sound during self-diagnosis, a melody during air replenishment, etc., and a confirmed lamp 13 are provided. High-pressure air supplied from a source through a pipe 14 is adjusted to a set pressure and sent to a tire chuck 16 via a coil hose 15.
is configured to supply.
なお、図中符号１７は、本体上部に支柱１８を
介して取付けた照明付コマーシヤルパネルを示し
ている。 Note that the reference numeral 17 in the figure indicates an illuminated commercial panel attached to the upper part of the main body via a support 18.
第３図は、上記装置の制御装置の実施例を示す
ものであつて、図中符号１９は、タイヤチヤツク
１６に供給する空気圧と装置の自己診断を行なう
マイクロコンピユータで、CPU１９ａ、ROM１
９ｂ、RAM１９ｃ、タイマー１９ｄからなり、
入力ポートにはタイヤチヤツク１６の空気圧を検
出する圧力センサー２０とキイボード１０が、ま
た出力ポートには確認ランプ１３、報知器１２及
び表示器１１を接続して構成されている。タイヤ
チヤツク１６は、供給用の電磁止弁２１を介して
圧縮空気源に、また排出用の電磁止弁２２を介し
て排出口に接続し、マイクロコンピユータ１９か
らの信号ににり電磁止弁２１，２２を開閉して設
定圧に一致する空気圧をタイヤチヤツク１６に供
給するように構成されている。なお、図中符号２
３は、装置への作動電力をON−OFFする電源ス
イツチを示している。 FIG. 3 shows an embodiment of the control device for the above-mentioned device, and reference numeral 19 in the figure is a microcomputer that performs self-diagnosis of the air pressure supplied to the tire chuck 16 and the device.
Consists of 9b, RAM 19c, and timer 19d.
A pressure sensor 20 for detecting the air pressure of the tire chuck 16 and a keyboard 10 are connected to the input port, and a confirmation lamp 13, an alarm 12 and a display 11 are connected to the output port. The tire chuck 16 is connected to a compressed air source via an electromagnetic stop valve 21 for supply, and to an outlet via an electromagnetic stop valve 22 for discharge. 22 is opened and closed to supply air pressure to the tire chuck 16 that corresponds to the set pressure. In addition, code 2 in the figure
3 indicates a power switch that turns on and off the operating power to the device.
次に、このように構成した装置の動作を第４図
に示したフローチヤートに基づいて説明する。 Next, the operation of the apparatus configured as described above will be explained based on the flowchart shown in FIG.
装置の電源スイツチ２３をONすると、マイク
ロコンピユータ１９が作動を開始し、自己診断用
シーケンスが作動する。これにより、供給側の電
磁止弁２１を閉とした状態で排出側の電磁止弁２
２を所定時間、例えば２秒だけ開として圧力セン
サー２０からの信号と基準設定値0.1Kgｆ／cm2と
比較する。このような過程を複数回、例えば３回
繰返しても圧力センサー２０からの信号が基準値
を下回らない場合には、供給側の電磁止弁２１に
漏洩が発生しているか、排出側の電磁止弁２２が
閉塞しているか、もしくは圧力センサー２０が機
能していないことが考えられるので、報知器１２
により警報音を発し、同時に装置の作動を停止す
る。 When the power switch 23 of the device is turned on, the microcomputer 19 starts operating and a self-diagnosis sequence is activated. As a result, the electromagnetic stop valve 21 on the discharge side is closed while the electromagnetic stop valve 21 on the supply side is closed.
2 is opened for a predetermined time, for example, 2 seconds, and the signal from the pressure sensor 20 is compared with a reference setting value of 0.1 Kgf/cm 2 . If the signal from the pressure sensor 20 does not fall below the reference value even after repeating this process multiple times, for example three times, there is a leak in the electromagnetic stop valve 21 on the supply side, or the electromagnetic stop on the discharge side It is possible that the valve 22 is blocked or the pressure sensor 20 is not functioning, so the alarm 12
The alarm will sound and the device will stop operating at the same time.
上記工程において圧力センサー２０にる測定値
が0.1Kgｆ／cm2より小さい場合には、両方の電磁
止弁２１，２２及び圧力センサー２０は一応正常
に機能していると判断する。このとき、圧力セン
サー２０には大気圧だけが作用することになるの
で、圧力センサー２０からの測定値と大気圧の差
ΔPは、センサー２０の測定誤差であるとして、
以後の測定においては測定値からΔPを差引いた
値を圧力測定値とする。このようにして圧力セン
サー２０の誤差修正が終了した段階で、供給側の
電磁止弁２２を所定時間、例えば２秒だけ開いて
圧縮空気源の全圧、例えば10Kgｆ／cm2を圧力セン
サー２０に印加し、圧力センサー２０からの出力
が7.5Kgｆ／cm2を過えるか否かを調べる。このと
き圧力センサーからの出力が7.5Kgｆ／cm2未満で
ある場合には、圧力センサー２０や電磁止弁２
１，２２の故障、もしくは圧縮空気源からの送圧
が不足していることが考えられるので、警報を発
し、同時に装置の作動を停止する。他方、圧力セ
ンサー２０からの出力が7.5Kgｆ／cm2を超過して
いる場合には、圧力センサー２０、電磁止弁２
１，２２、及び圧縮空気源が正常に作動するもの
とし、排気側の電磁弁２２を２秒間開放して残留
している空気を排出し、続いて供給側の電磁弁２
１を0.5秒間開放して電磁止弁２１，２２、タイ
ヤチヤツク１６、及び圧力センサー２０により形
成される閉管路の内圧を４乃至５Kgｆ／cm2に調整
し、この圧力ＡKgｆ／cm2を圧力センサー２０によ
り測定して記憶する。所定時間、例えば２秒が経
過した時点で、再び閉管路内に圧力ＢKgｆ／cm2を
圧力センサー２０により測定し、前述の記憶値Ａ
Kgｆ／cm2と比較する。このような操作を複数回、
例えば３回に亘つて実行し、測定値Ｂが記憶値Ａ
と一致しない場合には、ホース１５等の配管系に
漏洩が発生していると判断して警報を発し、同時
に装置の作動を停止する。 If the measured value of the pressure sensor 20 in the above process is smaller than 0.1 Kgf/cm 2 , it is determined that both the electromagnetic stop valves 21 and 22 and the pressure sensor 20 are functioning normally. At this time, only atmospheric pressure acts on the pressure sensor 20, so the difference ΔP between the measured value from the pressure sensor 20 and the atmospheric pressure is considered to be a measurement error of the sensor 20.
In subsequent measurements, the value obtained by subtracting ΔP from the measured value is used as the pressure measured value. When the error correction of the pressure sensor 20 is completed in this way, the electromagnetic stop valve 22 on the supply side is opened for a predetermined period of time, for example, 2 seconds, and the full pressure of the compressed air source, for example, 10 Kgf/cm 2 is applied to the pressure sensor 20. It is checked whether the output from the pressure sensor 20 exceeds 7.5 Kgf/cm 2 . At this time, if the output from the pressure sensor is less than 7.5Kgf/ cm2 , the pressure sensor 20 or the electromagnetic stop valve 2
1 or 22 or insufficient pressure from the compressed air source, an alarm will be issued and the operation of the device will be stopped at the same time. On the other hand, if the output from the pressure sensor 20 exceeds 7.5Kgf/cm 2 , the pressure sensor 20 and the electromagnetic stop valve 2
1, 22, and the compressed air source are operating normally, the exhaust side solenoid valve 22 is opened for 2 seconds to exhaust the remaining air, and then the supply side solenoid valve 2 is opened.
1 for 0.5 seconds to adjust the internal pressure of the closed pipeline formed by the electromagnetic stop valves 21, 22, tire chuck 16, and pressure sensor 20 to 4 to 5 Kgf/cm 2 , and this pressure AKgf/cm 2 is applied to the pressure sensor 20. Measure and store. After a predetermined period of time, for example 2 seconds, the pressure BKgf/cm 2 in the closed pipe is measured again by the pressure sensor 20, and the above-mentioned memorized value A is measured.
Compare with Kgf/ cm2 . Perform this operation multiple times,
For example, if it is executed three times and the measured value B is the stored value A.
If they do not match, it is determined that a leak has occurred in the piping system such as the hose 15, an alarm is issued, and the operation of the device is stopped at the same time.
他方、測定値が記憶値Ａに一致した場合には、
装置が正常に作動すると判断して、タイヤへの空
気の補給に備える。 On the other hand, if the measured value matches the stored value A,
Assuming that the device is working properly, prepare to replenish the tires with air.
このような状態において、ユーザは、キーボー
ド１０からタイヤ圧を設定してタイヤチエツク１
６をタイヤバルブに装着すると、マイクロコンピ
ユータ１９は、電磁止弁２１，２２を開閉しなが
ら圧縮空気源からの空気を設定圧に一致させなが
らタイヤに空気を注入していく。 In such a state, the user sets the tire pressure from the keyboard 10 and performs tire check 1.
6 is attached to the tire valve, the microcomputer 19 injects air into the tire while opening and closing the electromagnetic stop valves 21 and 22 and adjusting the air from the compressed air source to the set pressure.
（効果）
以上説明したように、本発明においては電源投
入時に圧縮空気源を作動させた状態で、第１電磁
弁を閉塞し、また第２電磁弁を開放して圧力検出
手段からの信号と第１基準値と比較し、上回つた
場合には警報を出力し、また下回つた場合には圧
力検出手段からの信号を圧力補正量として記憶す
る工程と、第１電磁弁を開放し、また第２電磁弁
を閉塞して圧力検出手段からの信号と第２基準値
とを比較し、下回つた場合には警報を出力する工
程とを実行するチエツク手段を備えたので、圧縮
空気源や電磁弁、圧力検出手段の作動状態を始業
時に自動的に点検して故障を確実に発見できるば
かりでなく、タイヤ空気圧を正確に調整すること
ができる。(Effects) As explained above, in the present invention, when the power is turned on, with the compressed air source activated, the first solenoid valve is closed and the second solenoid valve is opened, so that the signal from the pressure detection means is not detected. comparing it with a first reference value, outputting an alarm if it exceeds it, and storing the signal from the pressure detection means as a pressure correction amount if it falls below it; and opening the first solenoid valve; In addition, the second solenoid valve is closed, the signal from the pressure detection means is compared with the second reference value, and if the signal falls below the second reference value, an alarm is outputted. Not only can failures be reliably detected by automatically checking the operating states of the valves, solenoid valves, and pressure detection means at the start of work, but also tire air pressure can be adjusted accurately.
第１図は、本発明を明示するための構成図、第
２図は、本発明の一実施例を示す装置の外観図、
第３図は、同上装置の構成を示すブロツク図、第
４図は、同上装置の動作を示すフローチヤートで
ある。
８……装置本体、１０……キーボード、１１…
…表示器、１２……報知器、１６……タイヤチヤ
ツク、２０……圧力センサ、２１，２２……電磁
止弁。
FIG. 1 is a configuration diagram for clearly explaining the present invention, FIG. 2 is an external view of an apparatus showing an embodiment of the present invention,
FIG. 3 is a block diagram showing the configuration of the above device, and FIG. 4 is a flowchart showing the operation of the above device. 8...Device body, 10...Keyboard, 11...
...Indicator, 12...Alarm, 16...Tire chuck, 20...Pressure sensor, 21, 22...Electromagnetic stop valve.
Claims (1)
ブの途中に第１電磁止弁が、また圧縮空気源と大
気開放口に第２電磁弁を設けたエアー供給機構、
前記タイヤチヤツクに作用する空気圧を検出する
圧力検出手段、タイヤに定められた空気圧を設定
値として入力するタイヤ圧入力手段、前記検出手
段とタイヤ圧入力手段からの信号により前記電磁
止弁開閉してタイヤチヤツク部の空気圧を前記設
定値に維持する制御手段、及び電源の投入により
予め定められた手順に基づいて装置の状態を検査
し、異常が認められた時に装置の作動を停止する
チエツク手段とを備え、前記チエツク手段は、電
源投入時に前記空気源を作動させた状態で、第１
電磁弁を閉塞し、また第２電磁弁を開放して前記
圧力検出手段からの信号と第１基準値と比較し、
上回つた場合には警報を出力し、また下回つた場
合には前記信号を圧力補正量として記憶する工程
と、第１電磁弁を開放し、また第２電磁弁を閉塞
して前記圧力検出手段からの信号と第２基準値と
を比較し、下回つた場合には警報を出力する工程
とを実行することを特徴とするタイヤ用エアー供
給装置。1. An air supply mechanism in which a first electromagnetic stop valve is provided in the middle of the valve connecting the compressed air source and the tire chuck, and a second electromagnetic valve is provided in the compressed air source and the atmosphere opening port;
pressure detection means for detecting the air pressure acting on the tire chuck; tire pressure input means for inputting the air pressure determined for the tire as a set value; and signals from the detection means and the tire pressure input means to open and close the electromagnetic stop valve to open and close the tire chuck. control means for maintaining the air pressure at the set value, and check means for inspecting the state of the device based on a predetermined procedure when the power is turned on, and stopping the operation of the device when an abnormality is detected. , the checking means is configured to check the first air source while the air source is activated when the power is turned on.
closing the solenoid valve and opening the second solenoid valve and comparing the signal from the pressure detection means with a first reference value;
A step of outputting an alarm when the signal exceeds the pressure, and storing the signal as a pressure correction amount when the signal falls below the pressure, and opening the first solenoid valve and closing the second solenoid valve to detect the pressure. A tire air supply device comprising the step of comparing the signal from the means with a second reference value and outputting a warning if the signal is below the second reference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12899884A JPS619363A (en) | 1984-06-21 | 1984-06-21 | Air supply device for tires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12899884A JPS619363A (en) | 1984-06-21 | 1984-06-21 | Air supply device for tires |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS619363A JPS619363A (en) | 1986-01-16 |
| JPH0441105B2 true JPH0441105B2 (en) | 1992-07-07 |
Family
ID=14998607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12899884A Granted JPS619363A (en) | 1984-06-21 | 1984-06-21 | Air supply device for tires |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS619363A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6357433B2 (en) * | 2015-02-27 | 2018-07-11 | 小野谷機工株式会社 | Air filling machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145549A (en) * | 1982-02-23 | 1983-08-30 | Daifuku Co Ltd | Automatic car washing machine |
| JPS58174051A (en) * | 1982-04-06 | 1983-10-13 | Tokyo Tatsuno Co Ltd | Air filling apparatus for tire of automobile |
-
1984
- 1984-06-21 JP JP12899884A patent/JPS619363A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS619363A (en) | 1986-01-16 |
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