JPS5915655A - Protective device for controller of internal-combustion engine - Google Patents
Protective device for controller of internal-combustion engineInfo
- Publication number
- JPS5915655A JPS5915655A JP12516082A JP12516082A JPS5915655A JP S5915655 A JPS5915655 A JP S5915655A JP 12516082 A JP12516082 A JP 12516082A JP 12516082 A JP12516082 A JP 12516082A JP S5915655 A JPS5915655 A JP S5915655A
- Authority
- JP
- Japan
- Prior art keywords
- control device
- combustion engine
- controller
- voltage
- internal combustion
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 26
- 230000001681 protective effect Effects 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000002265 prevention Effects 0.000 claims description 5
- 230000007257 malfunction Effects 0.000 abstract description 3
- 239000007858 starting material Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
- F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は内燃機関用制御装置の保護装置に関し、特に
、機関起動時のバッテリ電圧低下による内燃機関用制御
装置の誤動作を防ぐ保護装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a protection device for an internal combustion engine control device, and more particularly to a protection device for preventing malfunction of the internal combustion engine control device due to a drop in battery voltage during engine startup.
従来、第１図に示すようにバッテリ乙に内燃機関起動用
のセルモータ２と機関制御用の制御装置９が電圧降下用
レギュレータ５を介して並列に接続されている場合は、
起動スイッチ４のオンによりセルモータ２がバッテリ乙
に接続されると、セルモータ２の消費電流が大きいため
にバッテリ６が電圧降下を起こして制御装置９が誤動作
をする恐れがあるので、レギュレータ５と制御装置９と
の間の回路に逆流防止ダイオード６およびバックアップ
コンデンサ７を挿入することによって、起動時の制御装
置９に印加される電圧降下を防止している。Conventionally, as shown in FIG. 1, when a starter motor 2 for starting an internal combustion engine and a control device 9 for controlling the engine are connected in parallel to a battery B via a voltage drop regulator 5,
When the starting switch 4 is turned on and the starter motor 2 is connected to the battery B, the battery 6 may cause a voltage drop due to the large current consumption of the starter motor 2, which may cause the control device 9 to malfunction. By inserting a backflow prevention diode 6 and a backup capacitor 7 into the circuit between the control device 9 and the device 9, a voltage drop applied to the control device 9 at startup is prevented.
しかしながら、バッテリ電圧が制御装置駆動用電圧（５
Ｖ）に比べてそれほど高くない１２Ｖ程度の場合、バッ
テリ乙のへたりやバッテリの充電状態の悪化等が生じる
と、前記従来技術では起動時のバッテリ電圧の大幅な倶
下により制御装置駆動用電圧の低下を招き、制御装置９
が制御機能を失ってダウンするという問題がある。However, the battery voltage is the voltage for driving the control device (5
In the case of about 12V, which is not so high compared to V), if the battery wears down or the state of charge of the battery deteriorates, the above-mentioned conventional technology lowers the voltage for driving the control device due to a significant drop in battery voltage at startup. control device 9.
There is a problem that the system loses its control function and goes down.
このために、バックアップコンデンサ７に容量の極めて
大きいものを使用すると、バックアップ時間は長くなる
が、これはコンデンサ７の容積が大きくなってスペース
利用率が悪くなると共にコストも高くなるという欠点が
ある。For this reason, if a backup capacitor 7 with an extremely large capacity is used, the backup time becomes longer, but this has the disadvantage that the volume of the capacitor 7 increases, resulting in poor space utilization and increased cost.
この発明は前記従来の欠点を解消し、内燃機関の起動時
に内燃機関の制御装置に印加される電圧が低下すること
なく、制御装置が誤動作することのない優れた内燃機関
用制御装置の保護装置を提供することを目的としている
。This invention solves the above-mentioned conventional drawbacks, and provides an excellent protection device for a control device for an internal combustion engine that prevents the voltage applied to the control device of the internal combustion engine from dropping during startup of the internal combustion engine and prevents the control device from malfunctioning. is intended to provide.
前記目的を達成するこの発明の内燃機関用制御装置の保
護装置は、バッテリの電圧が降圧用電圧レギュレータ、
逆流防止用ダイオード、バックアップコンデンサを介し
て給電されるように構成した、マイクロコンピュータを
内蔵する内燃機関用制御装置に、セルモータをオンオフ
するラッチングリレーと、前記制御装置に接続する機関
回転数センサとを設け、一方前記制御装置には前記ラッ
チングリレーオンオフ用の出力端子を設けて、内燃機関
の起動スイッチが」ンされた時に、前記制御装置にラッ
チングリレーのオン信号を出力させ、機関回転数が設定
回転数に達した時にラッチングリレーのオフ信号を出力
させるように構成したことを特徴としている。A protection device for an internal combustion engine control device according to the present invention that achieves the above object includes a voltage regulator for reducing the battery voltage;
An internal combustion engine control device containing a built-in microcomputer, configured to be supplied with power via a backflow prevention diode and a backup capacitor, is equipped with a latching relay for turning on and off a starter motor, and an engine rotation speed sensor connected to the control device. and the control device is provided with an output terminal for turning on and off the latching relay, so that when the starting switch of the internal combustion engine is turned on, the control device outputs a latching relay on signal to set the engine speed. It is characterized in that it is configured to output a latching relay off signal when the rotational speed is reached.
以下、図面を用いてこの発明の詳細な説明する。Hereinafter, the present invention will be explained in detail using the drawings.
第２図はこの発明の内燃機関用制御装置の保護装置の一
実施例の回路構成を示す説明図である。FIG. 2 is an explanatory diagram showing a circuit configuration of an embodiment of a protection device for an internal combustion engine control device according to the present invention.
この発明ではバッテリ６と電圧降下用レギュレータ５と
の間に制御回路電源スィッチ１１を設け、このレギュレ
ータ５によって降圧された電圧は従来同様に逆流防止ダ
イオード６およびバックアップコンデンサ７を介して制
御装置１００マイクロコンピユータ１２に印加する。さ
らに前記制御装置電源スィッチ１１の後段にはノンロッ
ク型の起動スイッチ８を設け、これをマイクロコンピュ
ータ１２に接続する。まだ、内燃機関１に（よ機関が起
動したか否かの判別に用いる回転敬センザ１５を取り付
け、この出力もマイクロコンピュータ１２に入力される
ようにしてお・く。In this invention, a control circuit power switch 11 is provided between the battery 6 and the voltage drop regulator 5, and the voltage dropped by the regulator 5 is passed through the backflow prevention diode 6 and the backup capacitor 7 to the control device 100, as in the conventional case. is applied to the computer 12. Furthermore, a non-lock type start switch 8 is provided downstream of the control device power switch 11 and is connected to the microcomputer 12. The internal combustion engine 1 is still equipped with a revolution sensor 15 used to determine whether or not the engine has started, and its output is also input to the microcomputer 12.
一方、内燃機関１を起動するセルモータ２は、ラッチン
グリレー（自己保持形継型′ａ）を介してバッテリ乙に
接続する。このラッチングリレー１４には動作用電線１
６かもコイルに電流を流すとオンして前Ｈ己セルモータ
２とバッテリ６とを接続し、電流を切ってもそのままオ
ン状態を保持し、復帰用電線１７からコイルに電流を流
すト刊フしてセルモータ２とバッテリ６との接続を解除
するようなオン、オフ時のみに通電すれば良いものを使
用する。前記動作用電線１６と復帰ｊ旧市線１７は前記
制御装置１０に接続され、制御装置１０内でリレー回路
１６を介してマイクロコンピュータ１２のラッチングリ
レーオンオフ用の出力端子に接続している。On the other hand, starter motor 2 for starting internal combustion engine 1 is connected to battery B via a latching relay (self-holding joint type 'a). This latching relay 14 has an operating electric wire 1
6. When current is passed through the coil, it turns on and connects the cell motor 2 and battery 6, and even when the current is cut off, it remains on, and current is passed from the return wire 17 to the coil. A device that only needs to be energized when turning on or off, such as when the starter motor 2 and battery 6 are disconnected, is used. The operation electric wire 16 and the return J old city line 17 are connected to the control device 10, and within the control device 10, they are connected to an output terminal for latching relay on/off of the microcomputer 12 via a relay circuit 16.
以上のように構成されたこの発明の内燃機関用制御装置
の保護装置では、内燃機関１の起動時にはまず、制御装
置電源スイツチ１１０オンにより、バックアップコンデ
ンサ７が充電されると共に制御装置１０に電圧が供給さ
れる。次いで起動スイッチ８が一瞬でもオンすると、マ
イクロコンピュータ１２はラッチングリレー１４のオン
信号を出力し、これがリレー回路１３を介して動作用電
線１６からラッチングリレー１４に伝えられ、ラッチン
グリレー１４がセルモータ２をバッテリ乙に接続する。In the protection device for an internal combustion engine control device of the present invention configured as described above, when the internal combustion engine 1 is started, the control device power switch 110 is first turned on to charge the backup capacitor 7 and apply voltage to the control device 10. Supplied. Next, when the start switch 8 is turned on even momentarily, the microcomputer 12 outputs an ON signal for the latching relay 14, which is transmitted from the operating wire 16 to the latching relay 14 via the relay circuit 13, and the latching relay 14 turns on the starter motor 2. Connect to battery B.
この時、マイクロコンピュータ１２から出力されるラッ
チングリレーオン信号はワンパルスで良いのでマイクロ
コンピュータ１２が内燃機関１を起動す４）だめに消費
する電力量はごくわずかである。At this time, since the latching relay ON signal outputted from the microcomputer 12 only needs to be one pulse, the amount of power consumed by the microcomputer 12 when starting the internal combustion engine 1 is extremely small.
このようにしてラッチングリレー１４によりセルモータ
２が回転し、内燃機関１が起動回転数（設定）に達する
と、前記回転数上ンサ１５の出力が設定電圧を越え、マ
イクロコンピュータ１２が機関が起動したと判断してラ
ッチングリレー１４のオフ信号を出力する。この信号は
リレー回路１３を介して復帰用電線１７がらラッチング
リレー１４に伝えられ、ラッチングリレー１４がセルモ
ータ２をバッテリ６から切り離す。In this way, the starter motor 2 is rotated by the latching relay 14, and when the internal combustion engine 1 reaches the starting rotation speed (set), the output of the rotation speed increaser 15 exceeds the set voltage, and the microcomputer 12 detects that the engine has started. It determines this and outputs an off signal for the latching relay 14. This signal is transmitted to the latching relay 14 via the relay circuit 13 along with the return wire 17, and the latching relay 14 disconnects the starter motor 2 from the battery 6.
以上のように制御装置電源スィッチ１１をオンした後に
、マイクロコンピュータ１２からリレー回路１６を介し
てセルモータ２にオン信号が出されるまでに容量の大き
いバックアップコンデンサ７は逆流防止ダイオード６を
通して制御装置駆動電圧値に充電されるので、セルモー
タ２がオンしてバッテリ電圧すなわちレギュレータ５の
出力電圧が降下しても、ある一定時間制御装置１０はバ
ックアップコンデンサ７に十分蓄えられた電荷により駆
動可能電圧値以上の電圧を得ることができる。しかもこ
の時、この発明ではセルモータ駆動用にオンオフがパル
ス信号で行なえる消費電力の小さいラッチングリレーを
使用しているので、制御装置１０の消費電力が少なく、
バックアップコンデンサフの放電時間を長くすることが
でき、バッテリ電圧が復帰するまでの間、十分に制御装
置１ｏに駆動可能電圧値具−１−の電圧を供給すること
ができる。As described above, after the control device power switch 11 is turned on, the large capacity backup capacitor 7 is connected to the control device drive voltage through the backflow prevention diode 6 until the microcomputer 12 issues an on signal to the starter motor 2 via the relay circuit 16. Therefore, even if the starter motor 2 is turned on and the battery voltage, that is, the output voltage of the regulator 5 drops, the control device 10 will be charged to a voltage higher than the driveable voltage value for a certain period of time due to the sufficient charge stored in the backup capacitor 7. voltage can be obtained. Moreover, in this invention, since a latching relay with low power consumption that can be turned on and off by a pulse signal is used for driving the starter motor, the power consumption of the control device 10 is low.
The discharge time of the backup capacitor can be lengthened, and the voltage of the drivable voltage device -1- can be sufficiently supplied to the control device 1o until the battery voltage is restored.
以上説明したように、この発明の内燃機関用制御装置の
保護装置は、オンオフがパルス信号で行なえて消費電力
の非常に少ないラッチングリレーを用いてセルモータの
オンオフを行なえるように構成したことにより、機関起
動時の制御装置の消費電力を少なく保つことがｉｊＪ能
となり、この結果制御装置は内燃機関の起動時もシステ
ムダウンすることなく正常に動作するという効果がある
。As explained above, the protection device for an internal combustion engine control device of the present invention is configured so that the starter motor can be turned on and off using a latching relay that can be turned on and off using a pulse signal and consumes very little power. It is possible to keep the power consumption of the control device low when starting the engine, and as a result, the control device can operate normally without system failure even when starting the internal combustion engine.
まだ、この発明では起動時の制御回路の消費電力が少な
いので、バッテリ電圧が制御装置駆動電圧に比べてそれ
ほど高くない場合やバラブリ容量が負荷容量に比べてそ
れほど大きくない場合にも適用でき、また、バックアッ
プコンデンサの容量も小さく設計できるという効果があ
る。Still, since the power consumption of the control circuit at startup is low in this invention, it can be applied even when the battery voltage is not so high compared to the control device drive voltage or when the dispersion capacity is not so large compared to the load capacity. This has the effect that the capacity of the backup capacitor can be designed to be small.
第１図は従来の内燃機関の起動回路および制御回路の構
成を示す説明図、第２図はこの発明の内燃機関用制御装
置の回路構成を示す説ｌｕ１図である。
１・・・内燃機関、２・・・セルモータ、４，８−・・
・起動スイッチ、５・・・レギュレータ、６・・・逆流
時ｌニタ。
イオード、７・・・バックアップコンデンサ、９．１０
・・・制御装置、１１・・・制御装置電源スィッチ、１
２・・・マイクロコンピュータ、１６・・・リレー回路
、１４・・・ラッチングリレー、１５・・・回転数セン
ヅ−６代理人 弁理士 小 川 信 −
弁理士 野 口 賢 照
弁理士 斎 下 和 彦FIG. 1 is an explanatory diagram showing the configuration of a conventional starting circuit and control circuit for an internal combustion engine, and FIG. 2 is an explanatory diagram showing the circuit configuration of a control device for an internal combustion engine according to the present invention. 1... Internal combustion engine, 2... Cell motor, 4, 8-...
・Start switch, 5...Regulator, 6...L monitor when backflow occurs. Iode, 7...Backup capacitor, 9.10
...Control device, 11...Control device power switch, 1
2...Microcomputer, 16...Relay circuit, 14...Latching relay, 15...Rotation speed sensor-6 Agent: Patent attorney Makoto Ogawa - Patent attorney: Masaru Noguchi Patent attorney: Kazuhiko Saishita
Claims (1)
ダイオード、バックアップコンデンサを介して給電され
るように構成した、マイクロコンピュータを内蔵する内
燃機関用制御装置に、セルモータをオンオフするラッチ
ングリレーと、前記制御装置に接続する機関回転数セン
サとを設け、一方前記制御装置には前記ラッチングリレ
ーオンオフ用の出力端子を設けて、内燃機関の起動スイ
ッチがオンされた時に、前記制御装置にラッチングリレ
ーの、オン信号を出力させ、機関回転数が設定回転数に
達した時にラッチングリレーのオフ信号を出力させるよ
うに構成したことを特徴とする内燃機関用制御装置の保
護装置。An internal combustion engine control device containing a built-in microcomputer is configured such that battery voltage is supplied via a step-down voltage regulator, a backflow prevention diode, and a backup capacitor, and includes a latching relay that turns on and off a starting motor, and the control device. and an engine speed sensor connected to the control device, and the control device is provided with an output terminal for turning on and off the latching relay, so that when the starting switch of the internal combustion engine is turned on, the control device receives an on signal for the latching relay. 1. A protection device for a control device for an internal combustion engine, characterized in that the protection device is configured to output a latching relay off signal when the engine rotation speed reaches a set rotation speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12516082A JPS5915655A (en) | 1982-07-20 | 1982-07-20 | Protective device for controller of internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12516082A JPS5915655A (en) | 1982-07-20 | 1982-07-20 | Protective device for controller of internal-combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5915655A true JPS5915655A (en) | 1984-01-26 |
Family
ID=14903356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12516082A Pending JPS5915655A (en) | 1982-07-20 | 1982-07-20 | Protective device for controller of internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5915655A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6456068A (en) * | 1987-08-03 | 1989-03-02 | Oogasuto Rudorufu Tamiet Pauro | Apparatus for abrupt drop of liquid pressure |
| EP0526985A2 (en) * | 1991-07-18 | 1993-02-10 | Eaton Corporation | Starter interlock for electronically controlled vehicle |
| JPH0731686A (en) * | 1993-07-12 | 1995-02-03 | Nobuhiro Fujita | Suspension type refuging device |
| GB2342794A (en) * | 1998-09-28 | 2000-04-19 | Siemens Ag | Buffer circuit for actuator control |
| JP2009089559A (en) * | 2007-10-02 | 2009-04-23 | Rb Controls Co | Load driving circuit |
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|---|---|---|---|---|
| JPS50136528A (en) * | 1974-04-18 | 1975-10-29 | ||
| JPS5537563A (en) * | 1978-09-08 | 1980-03-15 | Nippon Denso Co Ltd | Starting method and device of engine |
| JPS5537563B2 (en) * | 1974-08-28 | 1980-09-29 | ||
| JPS561473A (en) * | 1979-06-19 | 1981-01-09 | Tokyo Shibaura Electric Co | Connector device |
| JPS56153637A (en) * | 1980-04-30 | 1981-11-27 | Matsushita Electric Works Ltd | Relay driving circuit |
| JPS56153639A (en) * | 1980-04-30 | 1981-11-27 | Anritsu Electric Co Ltd | Electromagnetic relay |
| JPS5767247A (en) * | 1980-10-13 | 1982-04-23 | Matsushita Electric Works Ltd | Latching relay driving circuit |
| JPS5769247A (en) * | 1980-10-17 | 1982-04-27 | British Gas Corp | Magnet assembly for pipeline inspection vehicle |
| JPS5776262A (en) * | 1980-10-31 | 1982-05-13 | Nissan Motor Co Ltd | Power supply device of electronic controlling unit for internal combustion engine |
-
1982
- 1982-07-20 JP JP12516082A patent/JPS5915655A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50136528A (en) * | 1974-04-18 | 1975-10-29 | ||
| JPS5537563B2 (en) * | 1974-08-28 | 1980-09-29 | ||
| JPS5537563A (en) * | 1978-09-08 | 1980-03-15 | Nippon Denso Co Ltd | Starting method and device of engine |
| JPS561473A (en) * | 1979-06-19 | 1981-01-09 | Tokyo Shibaura Electric Co | Connector device |
| JPS56153637A (en) * | 1980-04-30 | 1981-11-27 | Matsushita Electric Works Ltd | Relay driving circuit |
| JPS56153639A (en) * | 1980-04-30 | 1981-11-27 | Anritsu Electric Co Ltd | Electromagnetic relay |
| JPS5767247A (en) * | 1980-10-13 | 1982-04-23 | Matsushita Electric Works Ltd | Latching relay driving circuit |
| JPS5769247A (en) * | 1980-10-17 | 1982-04-27 | British Gas Corp | Magnet assembly for pipeline inspection vehicle |
| JPS5776262A (en) * | 1980-10-31 | 1982-05-13 | Nissan Motor Co Ltd | Power supply device of electronic controlling unit for internal combustion engine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6456068A (en) * | 1987-08-03 | 1989-03-02 | Oogasuto Rudorufu Tamiet Pauro | Apparatus for abrupt drop of liquid pressure |
| EP0526985A2 (en) * | 1991-07-18 | 1993-02-10 | Eaton Corporation | Starter interlock for electronically controlled vehicle |
| EP0526985A3 (en) * | 1991-07-18 | 1994-06-08 | Eaton Corp | Starter interlock for electronically controlled vehicle |
| JPH0731686A (en) * | 1993-07-12 | 1995-02-03 | Nobuhiro Fujita | Suspension type refuging device |
| GB2342794A (en) * | 1998-09-28 | 2000-04-19 | Siemens Ag | Buffer circuit for actuator control |
| GB2342794B (en) * | 1998-09-28 | 2003-02-12 | Siemens Ag | Control circuit |
| JP2009089559A (en) * | 2007-10-02 | 2009-04-23 | Rb Controls Co | Load driving circuit |
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