JPH01127933A - Detector for abnormality of engine - Google Patents
Detector for abnormality of engineInfo
- Publication number
- JPH01127933A JPH01127933A JP28659787A JP28659787A JPH01127933A JP H01127933 A JPH01127933 A JP H01127933A JP 28659787 A JP28659787 A JP 28659787A JP 28659787 A JP28659787 A JP 28659787A JP H01127933 A JPH01127933 A JP H01127933A
- Authority
- JP
- Japan
- Prior art keywords
- abnormality
- engine
- starter
- operating current
- 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
Links
- 230000005856 abnormality Effects 0.000 title claims abstract description 38
- 239000007858 starting material Substances 0.000 claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Testing Of Engines (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野）
本発明はエンジンの焼付状態などの異常を検出する装置
に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a device for detecting an abnormality such as a seizure state of an engine.
〈従来の技術〉
従来のエンジンでは、油温、油圧あるいは冷却水温度な
どに基づいてエンジンの異常を警報するようにした間接
的な異常検出装置が用いられていた。<Prior Art> In conventional engines, indirect abnormality detection devices have been used that issue warnings of engine abnormalities based on oil temperature, oil pressure, cooling water temperature, or the like.
〈発明が解決しようとする問題点〉
しかしながら、例えば冷却水温度の上昇を警告する従来
の異常検出装置は、これを放置すればエンジンの焼付を
起すおそれがあるという警告に過ぎず、冷却水の温度が
充分に上昇していない始動時点などでは異常を検出でき
ないという問題点があった。<Problems to be solved by the invention> However, conventional abnormality detection devices that warn of a rise in cooling water temperature, for example, only warn that if left unchecked, there is a risk of engine seizure; There is a problem in that an abnormality cannot be detected at the time of starting when the temperature has not risen sufficiently.
本発明は、このような従来の問題点を解消するためにな
されたものであり、エンジンの始動時点において異常の
有無を的確に検出できるエンジンの異常検出装置を提供
することを目的としている。The present invention has been made to solve these conventional problems, and it is an object of the present invention to provide an engine abnormality detection device that can accurately detect the presence or absence of an abnormality at the time of starting the engine.
く問題点を解決するための手段〉
上記目的を達成するために本発明では、スタータモータ
の運転状態を検出するセンサと、該センサの出力に基づ
いて異常の有無を判定する異常判定手段と、該異常判定
手段から異常信号が出力されたときに作動する表示手段
とを設けたことを特徴としている。Means for Solving Problems> In order to achieve the above object, the present invention includes a sensor for detecting the operating state of the starter motor, an abnormality determining means for determining the presence or absence of an abnormality based on the output of the sensor, The present invention is characterized by further comprising a display means that is activated when an abnormality signal is output from the abnormality determination means.
〈作用〉
即ち、焼付などの異常が発生している場合は工ンジンの
クランキング抵抗が大きくなり、これにともなってスタ
ータの負荷が増大する。すると、スタータモータの運転
電流が増加し、又は、スタータの運転時におけるバッテ
リの電圧降下の程度が大きくなる。<Function> That is, when an abnormality such as seizure occurs, the cranking resistance of the engine increases, and the load on the starter increases accordingly. Then, the operating current of the starter motor increases, or the degree of battery voltage drop during starter operation increases.
従って本発明によれば、スタータモータの運転時におけ
る運転電流が所定値より大きく、又はスタータモータ運
転時におけるバッテリの端子電圧が所定値より低いこと
を検出した場合は異常判定手段が機能して異常である旨
の信号を表示手段に出力するために、エンジンの異常を
的確に知ることができる。Therefore, according to the present invention, when it is detected that the operating current during operation of the starter motor is larger than a predetermined value or that the terminal voltage of the battery during operation of the starter motor is lower than a predetermined value, the abnormality determination means functions to detect an abnormality. Since a signal to the effect that this is the case is outputted to the display means, it is possible to accurately know the abnormality of the engine.
〈実施例〉
以下に本発明の実施例を図面に基づいて詳細に説明する
。<Example> Examples of the present invention will be described in detail below based on the drawings.
図において、１はスタータ、２はスタータの直流直巻モ
ータ、２ａはモータの入力端子、３はフィールドコイル
、４は正極側ブラシ、５は図示しないアマチュアコイル
が巻回されたアマチュア、６は負極側ブラシ、７は前記
モータ２を通電付勢するマグネットスイッチ、８は前記
スタータ１をスイッチングするためのキースイッチ、９
はスタータｌの電源を構成するバッテリ、１０は前記入
力端子２ａと前記フィールドコイル３との間に挿入され
た電流計、１１は前記電流計１０を介して検出されたス
タータ１の運転電流と、予め定められた標準運転電流と
を比較して両者の差異を比較する異常判定手段を構成す
るマイクロコンピュータである。In the figure, 1 is the starter, 2 is the DC series motor of the starter, 2a is the input terminal of the motor, 3 is the field coil, 4 is the positive pole side brush, 5 is the armature around which an armature coil (not shown) is wound, and 6 is the negative pole a side brush; 7 a magnet switch for energizing the motor 2; 8 a key switch for switching the starter 1; 9;
10 is an ammeter inserted between the input terminal 2a and the field coil 3; 11 is the operating current of the starter 1 detected through the ammeter 10; This is a microcomputer that constitutes an abnormality determination means that compares the current with a predetermined standard operating current and compares the difference between the two.
尚、前記マイクロコンピュータ１１のメモリには前記ス
タータ１の標準運転電流の値が予め記憶されている。１
２はスタータ１の運転電流と前記マイクロコンピュータ
１１に記憶されている標準運転電流との差が設定値以上
であるときに点灯作動する表示手段として機能する警報
ランプである。Note that the value of the standard operating current of the starter 1 is stored in advance in the memory of the microcomputer 11. 1
Reference numeral 2 designates an alarm lamp that functions as a display means that lights up when the difference between the operating current of the starter 1 and the standard operating current stored in the microcomputer 11 is greater than or equal to a set value.
本発明は以上のように構成されており、キースイッチ８
のスイッチングによってスタータ１を運転すると図示し
ないエンジンがクランキングされる。The present invention is configured as described above, and the key switch 8
When the starter 1 is operated by switching, the engine (not shown) is cranked.
この際、エンジンに何の異常もない場合は電流計１０を
介して検出されたスタータ１の運転電流の値は、マイク
ロコンピュータ１１のメモリに記憶されている標準運転
電流の値と実質的に同一であるために警報ランプ１２は
点灯しない。At this time, if there is no abnormality in the engine, the value of the operating current of the starter 1 detected via the ammeter 10 is substantially the same as the value of the standard operating current stored in the memory of the microcomputer 11. Therefore, the alarm lamp 12 does not light up.
一方、エンジンが例えば焼付状態にあるときはそのクラ
ンキング抵抗が増大し、これにともなってスタータ１の
負荷が増大している。このために、異常の発生時は電流
計１０で検出したスタータ１の運転電流の値が標準運転
電流の値より高くなり、マイクロコンピュータ１１から
異常信号が出力されるために警報ランプ１２が点灯する
。これにより、運転者はエンジンに異常が発生している
ことを認知することができる。１３ａ、１３ｂは季節変
動に応じて標準運転電流の値（標準値）を補正するため
に供給される外気温、水温などの補正情報であり、手動
又は自動設定される。On the other hand, when the engine is in a seizing state, for example, its cranking resistance increases, and the load on the starter 1 increases accordingly. For this reason, when an abnormality occurs, the value of the operating current of the starter 1 detected by the ammeter 10 becomes higher than the value of the standard operating current, and an abnormality signal is output from the microcomputer 11, so that the alarm lamp 12 lights up. . This allows the driver to recognize that an abnormality has occurred in the engine. Reference numerals 13a and 13b are correction information such as outside air temperature and water temperature that are supplied to correct the standard operating current value (standard value) according to seasonal variations, and are set manually or automatically.
尚、実施例では表示手段を警報ランプによって構成して
いるが、ブザー、文字表示あるいは音声表示などの表示
手段を採用することもできる。更に、実施例ではスター
タモータの運転電流に基づいて異常の有無を判定するよ
うにしているが、スタータ運転時におけるバッテリの端
子電圧を検出して異常の有無を判定することもできる。In the embodiment, the display means is constituted by an alarm lamp, but display means such as a buzzer, text display, or voice display may also be employed. Further, in the embodiment, the presence or absence of an abnormality is determined based on the operating current of the starter motor, but the presence or absence of an abnormality may also be determined by detecting the terminal voltage of the battery during starter operation.
〈発明の効果〉
以上説明したように本発明によれば、スタータの運転状
態に基づいてエンジンの異常の有無を判定して表示手段
を作動させるようにしているために、始動時にエンジン
の異常を検出できる。このためにエンジンの異常に気づ
かずにエンジンを始動させてしまうおそれがなく、安全
性が向上する。<Effects of the Invention> As explained above, according to the present invention, since the presence or absence of an abnormality in the engine is determined based on the operating state of the starter and the display means is activated, it is possible to detect an abnormality in the engine at the time of starting. Can be detected. This eliminates the risk of starting the engine without noticing an abnormality in the engine, improving safety.
図は本発明の一実施例を示す概略構成図である。
ｌ・・・スタータ ２・・・直流モータ１０・
・・センサ（電流計）
１１・・・異常判定手段（マイクロコンピュータ）１２
・・・表示手段（警報ランプ）
特許出願人 日野自動車工業株式会社The figure is a schematic configuration diagram showing one embodiment of the present invention. l... Starter 2... DC motor 10.
... Sensor (ammeter) 11 ... Abnormality determination means (microcomputer) 12
...Display means (warning lamp) Patent applicant Hino Motors Co., Ltd.
Claims (1)
ータモータの運転状態を検出するセンサと、該センサの
出力に基づいてエンジンの異常の有無を判定する異常判
定手段と、該異常判定手段から異常信号が出力されたと
きに作動する表示手段とを備えてなるエンジンの異常検
出装置。In an engine equipped with a starter motor, a sensor detects the operating state of the starter motor, an abnormality determining means determines whether or not there is an abnormality in the engine based on the output of the sensor, and an abnormality signal is output from the abnormality determining means. An abnormality detection device for an engine, comprising: a display means that is activated when the engine malfunction occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28659787A JPH01127933A (en) | 1987-11-13 | 1987-11-13 | Detector for abnormality of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28659787A JPH01127933A (en) | 1987-11-13 | 1987-11-13 | Detector for abnormality of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01127933A true JPH01127933A (en) | 1989-05-19 |
Family
ID=17706474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28659787A Pending JPH01127933A (en) | 1987-11-13 | 1987-11-13 | Detector for abnormality of engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01127933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160057437A (en) * | 2013-09-13 | 2016-05-23 | 터보메카 | Method for the monitoring of a degree of coking at seals by a gas generator shaft |
| KR20160083857A (en) * | 2013-09-13 | 2016-07-12 | 터보메카 | Monitoring of a degree of coking at dynamic seals by a starter motor |
-
1987
- 1987-11-13 JP JP28659787A patent/JPH01127933A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20160057437A (en) * | 2013-09-13 | 2016-05-23 | 터보메카 | Method for the monitoring of a degree of coking at seals by a gas generator shaft |
| KR20160083857A (en) * | 2013-09-13 | 2016-07-12 | 터보메카 | Monitoring of a degree of coking at dynamic seals by a starter motor |
| JP2016532056A (en) * | 2013-09-13 | 2016-10-13 | ターボメカＴｕｒｂｏｍｅｃａ | Monitoring the degree of coking with dynamic seals with a starter |
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