JPH0411406U - - Google Patents
Info
- Publication number
- JPH0411406U JPH0411406U JP5259590U JP5259590U JPH0411406U JP H0411406 U JPH0411406 U JP H0411406U JP 5259590 U JP5259590 U JP 5259590U JP 5259590 U JP5259590 U JP 5259590U JP H0411406 U JPH0411406 U JP H0411406U
- Authority
- JP
- Japan
- Prior art keywords
- displacement
- detection device
- pair
- abnormality detection
- brush
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 14
- 230000005856 abnormality Effects 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims 2
- 230000002159 abnormal effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図、第２図は本考案の一実施例を示す回路
図、第３図は本考案の他の実施例を示す回路図、
第４図、第５図、第６図はＥＣＵの機能を示すブ
ロツク図である。
１，１ａ……変位検出器、２，２ａ……抵抗体
、３，３ａ……ブラシ、４，４ａ……プルダウン
抵抗、７，７ａ……Ａ／Ｄ変換器、８……ＥＣＵ
、９，９ａ……プルアツプ抵抗、１０……異常判
別部、１１……第１変化量検出部、１２……第２
変化量検出部、１３……比較部、１４……切換部
、１５……第１出力比較部、１６……第２出力比
較部。
1 and 2 are circuit diagrams showing one embodiment of the present invention, and FIG. 3 is a circuit diagram showing another embodiment of the present invention,
FIG. 4, FIG. 5, and FIG. 6 are block diagrams showing the functions of the ECU. 1, 1a... Displacement detector, 2, 2a... Resistor, 3, 3a... Brush, 4, 4a... Pull-down resistor, 7, 7a... A/D converter, 8... ECU
, 9, 9a...Pull-up resistor, 10...Abnormality determination section, 11...First variation detection section, 12...Second
Change amount detection section, 13... Comparison section, 14... Switching section, 15... First output comparison section, 16... Second output comparison section.
Claims (1)
を抵抗体の上に摺動させ、該ブラシから被検出体
の位置を表す電気信号を出力値として取出す変位
検出器の異常検知装置において、 互いのブラシが連動して変位するようにされた
１対の変位検出器と、 該１対の変位検出器の出力信号値が予定関係に
保たれているか否かを検出する手段と、 前記出力値が予定関係に保たれていない場合に
異常信号を出力する手段とを具備したことを特徴
とする変位検出器の異常検知装置。 (2) 抵抗体に対すブラシの接触が事実上断たれ
た場合、ブラシの電位を予定の電位点に接続する
手段を具備したことを特徴とする請求項１記載の
変位検出器の異常検知装置。 (3) 前記１対の変位検出器のそれぞれの出力値
を予定の周期で検出し、該予定の周期毎に前回お
よび今回検出時の出力値の変化を算出する手段と
、 前記異常信号に応答し、変化が小さい方の変位
検出器の出力値を変位検出値として出力する手段
とを具備したことを特徴とする請求項１または２
記載の変位検出器の異常検知装置。 (4) 前記予定関係は、前記１対の変位検出器の
出力値が一致していることであることを特徴とす
る請求項１〜３のいずれかに記載の変位検出器の
異常検知装置。 (5) 被検出体の変位に従つてブラシを連動して
変位させた場合に、互いに反対方向に出力値が増
減するように前記１対の変位検出器が設けられて
いることを特徴とする請求項１〜４のいずれかに
記載の変位検出器の異常検知装置。 (6) 前記予定関係は、前記１対の変位検出器の
出力値の合計が予定の基準値と一致していること
であることを特徴とする請求項５記載の変位検出
器の異常検知装置。 (7) 被検出体と連動する信号取出し用のブラシ
を抵抗体の上に摺動させ、該ブラシから被検出体
の位置を表す電気信号を出力値として取出す変位
検出器の異常検知装置において、 互いのブラシが連動して変位するようにされた
１対の変位検出器と、 前記１対の変位検出器のうちの少なくとも一方
に関してその出力値が予定の限界値を超過してい
るか否かを判別する手段と、 出力値が予定の限界値を超過していると判別さ
れた場合に、他方の変位検出器の出力値を変位検
出値として出力する信号切換手段とを具備したこ
とを特徴とする変位検出器の異常検知装置。 (8) 被検出体の変位に従つてブラシを連動して
変位させた場合に、互いに反対方向に出力値が増
減するように前記１対の変位検出器が設けられて
いることを特徴とする請求項７記載の変位検出器
の異常検知装置。[Claims for Utility Model Registration] (1) Displacement in which a brush for signal extraction linked to a detected object is slid over a resistor, and an electrical signal representing the position of the detected object is extracted as an output value from the brush. In the detector abnormality detection device, a pair of displacement detectors whose brushes are displaced in conjunction with each other, and whether or not the output signal values of the pair of displacement detectors are maintained in a scheduled relationship. What is claimed is: 1. An abnormality detection device for a displacement detector, comprising: means for detecting: and means for outputting an abnormality signal when the output values are not maintained in a predetermined relationship. (2) The abnormality detection device for a displacement detector according to claim 1, further comprising means for connecting the potential of the brush to a predetermined potential point when contact of the brush with the resistor is virtually broken. . (3) means for detecting the output values of each of the pair of displacement detectors at a scheduled cycle, and calculating changes in the output values at the previous and current detections for each scheduled cycle; and responding to the abnormal signal. and means for outputting the output value of the displacement detector having a smaller change as the displacement detection value.
Abnormality detection device for the displacement detector described. (4) The abnormality detection device for a displacement detector according to any one of claims 1 to 3, wherein the scheduled relationship is that output values of the pair of displacement detectors match. (5) The pair of displacement detectors are provided so that when the brushes are displaced in conjunction with the displacement of the object to be detected, the output values increase and decrease in opposite directions. An abnormality detection device for a displacement detector according to any one of claims 1 to 4. (6) The abnormality detection device for a displacement detector according to claim 5, wherein the scheduled relationship is that the sum of output values of the pair of displacement detectors matches a scheduled reference value. . (7) An abnormality detection device for a displacement detector in which a signal extraction brush that is linked to a detected object is slid over a resistor, and an electrical signal representing the position of the detected object is extracted from the brush as an output value, A pair of displacement detectors whose brushes are displaced in conjunction with each other, and determining whether the output value of at least one of the pair of displacement detectors exceeds a predetermined limit value. It is characterized by comprising: means for determining, and signal switching means for outputting the output value of the other displacement detector as a detected displacement value when it is determined that the output value exceeds a predetermined limit value. Anomaly detection device for displacement detector. (8) The pair of displacement detectors are provided so that when the brushes are displaced in conjunction with the displacement of the detected object, the output values increase and decrease in opposite directions. An abnormality detection device for a displacement detector according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259590U JPH0411406U (en) | 1990-05-22 | 1990-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5259590U JPH0411406U (en) | 1990-05-22 | 1990-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0411406U true JPH0411406U (en) | 1992-01-30 |
Family
ID=31573028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5259590U Pending JPH0411406U (en) | 1990-05-22 | 1990-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411406U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4854081U (en) * | 1971-10-26 | 1973-07-12 | ||
| JPS496460U (en) * | 1972-04-21 | 1974-01-19 | ||
| JPS50147893U (en) * | 1974-05-24 | 1975-12-08 | ||
| JPS5211200U (en) * | 1975-07-11 | 1977-01-26 | ||
| JPS5239599U (en) * | 1975-09-12 | 1977-03-19 | ||
| JPS5287999U (en) * | 1975-12-25 | 1977-06-30 | ||
| JPS6077320A (en) * | 1983-10-04 | 1985-05-01 | 勝倉 喜一郎 | Filler |
| JPH109036A (en) * | 1996-06-28 | 1998-01-13 | Denso Corp | Device for diagnosing abnormality of sensor |
| JP2018141662A (en) * | 2017-02-27 | 2018-09-13 | アイシン精機株式会社 | Detection device |
-
1990
- 1990-05-22 JP JP5259590U patent/JPH0411406U/ja active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4854081U (en) * | 1971-10-26 | 1973-07-12 | ||
| JPS496460U (en) * | 1972-04-21 | 1974-01-19 | ||
| JPS50147893U (en) * | 1974-05-24 | 1975-12-08 | ||
| JPS5211200U (en) * | 1975-07-11 | 1977-01-26 | ||
| JPS5239599U (en) * | 1975-09-12 | 1977-03-19 | ||
| JPS5287999U (en) * | 1975-12-25 | 1977-06-30 | ||
| JPS5531691Y2 (en) * | 1975-12-25 | 1980-07-29 | ||
| JPS6077320A (en) * | 1983-10-04 | 1985-05-01 | 勝倉 喜一郎 | Filler |
| JPH109036A (en) * | 1996-06-28 | 1998-01-13 | Denso Corp | Device for diagnosing abnormality of sensor |
| JP2018141662A (en) * | 2017-02-27 | 2018-09-13 | アイシン精機株式会社 | Detection device |
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