JPH0323343A - Electronic control type governor for engine generator - Google Patents
Electronic control type governor for engine generatorInfo
- Publication number
- JPH0323343A JPH0323343A JP15514789A JP15514789A JPH0323343A JP H0323343 A JPH0323343 A JP H0323343A JP 15514789 A JP15514789 A JP 15514789A JP 15514789 A JP15514789 A JP 15514789A JP H0323343 A JPH0323343 A JP H0323343A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- peak
- output
- generator
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims description 14
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 4
- 230000004043 responsiveness Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000004069 differentiation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、エンジン発電機の電子制御弐ガバナに関し、
特に、動作の安定性及び応答性がともに高められるよう
にした、エンジン発電機の電子制御式ガバナに関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an electronically controlled second governor for an engine generator.
In particular, the present invention relates to an electronically controlled governor for an engine generator, which improves both operational stability and responsiveness.
く従来の技術〉
従来のエンジン発電機の電子制御式ガバナとしては、例
えば第３図に示すものがある。BACKGROUND ART As a conventional electronically controlled governor for an engine generator, there is one shown in FIG. 3, for example.
この従来例では、エンジンｌで駆動される発電機２の出
力回路３にカレントトランス４、整流回路５及び電圧調
整装置としてのローバスフィルタ１６を介して燃料供給
量演算装置７に負荷信号を入力し、燃料供給量演算装置
７の演算結果にしたがって燃料供給装置８の燃料調量用
アクチュエータ９を操作するように構威されている。In this conventional example, a load signal is input to an output circuit 3 of a generator 2 driven by an engine 1 to a fuel supply amount calculation device 7 via a current transformer 4, a rectifier circuit 5, and a low-pass filter 16 as a voltage regulator. However, the fuel metering actuator 9 of the fuel supply device 8 is operated in accordance with the calculation result of the fuel supply amount calculation device 7.
く発明が解決しようとする課題〉
この従来例では、ローバスフィルタ１６に入力される負
荷検出信号は例えば第２図（ｂ）の実線Ａで示すように
サイン半波状のパルス信号であるのに対して、ローパス
フィルタ１６が出力する負荷信号は同図（ｂ）の実線Ｂ
で示すようなリソブルを伴った電圧信号となることが知
られている。Problems to be Solved by the Invention In this conventional example, although the load detection signal input to the low-pass filter 16 is a half-sine wave pulse signal as shown by the solid line A in FIG. 2(b), On the other hand, the load signal output by the low-pass filter 16 is the solid line B in FIG.
It is known that a voltage signal with resolvability as shown in FIG.
このリフプルが大きくなると電子制御式ガバナの動作の
安定性を高める上では不利になる。If this ripple pull becomes large, it is disadvantageous in improving the stability of the operation of the electronically controlled governor.
そこで、ローパスフィルタｌ６の積分成分を大きくする
とリップルを小さくすることができる。Therefore, by increasing the integral component of the low-pass filter l6, the ripple can be reduced.
しかし、この反面、ローパスフィルタｌ６における信号
遅延時間が長くなるので、電子ガバナの応答性（感度）
は悪くなる。However, on the other hand, the signal delay time in the low-pass filter l6 becomes longer, which reduces the responsiveness (sensitivity) of the electronic governor.
becomes worse.
逆に、ローバスフィルタ１６の積分戒分を小さくすると
信号遅延時間が短くなり、電子ガバナの応答性を高める
ことができる。しかし、この反面、出力のリフブルが大
きくなり、電子制御式ガバナの動作の安定性を高める上
で不利になる。Conversely, if the integral fraction of the low-pass filter 16 is made small, the signal delay time will be shortened, and the responsiveness of the electronic governor can be improved. However, on the other hand, the output riffle increases, which is disadvantageous in improving the stability of the operation of the electronically controlled governor.
このように、従来のエンジン発電機の電子制御弐ガバナ
では、動作の安定性と応答性とを共に高めることはでき
ないという問題がある。As described above, the conventional electronically controlled two governors of engine generators have a problem in that both the stability and responsiveness of the operation cannot be improved.
本発明は、上記の事情を鑑みてなされたものであり、動
作の安定性及び応答性がともに高められるようにした、
エンジン発電機の電子制御弐ガバナを提供することを目
的とする。The present invention has been made in view of the above circumstances, and is designed to improve both stability and responsiveness of operation.
The purpose is to provide an electronically controlled second governor for engine generators.
〈課題を解決するための手段〉
本発明は、例えば第１図に示すように、エンジン１で駆
動される発電機２の出力回路３にカレントトランス４、
整流回路５、電圧調整装置６及び燃料供給量演算装置７
を介して燃料供給装置８の燃料調量用アクチュエータ９
を連係させた、エンジン発電機の電子制御式ガバナを前
提とするものであって、上記の目的を達戒するため、次
のような手段を講じている。<Means for Solving the Problems> As shown in FIG. 1, the present invention includes a current transformer 4, a current transformer 4,
Rectifier circuit 5, voltage regulator 6, and fuel supply amount calculation device 7
The fuel metering actuator 9 of the fuel supply device 8 via
The system is based on an electronically controlled governor for the engine-generator that is linked to the engine, and the following measures are taken to achieve the above objectives.
すなわち、電圧調整装置６がピーク検出回路１１とサン
プルホールド回路１２とで構威され、ピーク検出回路１
２は整流回Ｂ５で整流された直流脈動電圧ＶＩの各ピー
ク電圧ＶＩを検出するように構成され、
サンプルホールド回路１２が、ピーク検出回路１１で検
出された各ピーク電圧ＶＰを次のピーク電圧ＶＰが人力
さるまでホールドしながら、燃料供給量演算装置７に出
力するように構威される．〈作用〉
本発明においては、カレントトランス４及び整流回路５
を介して電圧調整装置６に入力される負荷検出信号がピ
ークに達するごとにそのピーク値がピーク検出回路１１
により検出され、サンプルホールド回路１２にホールド
される。したがって、電圧調整装置６は負荷検出信号の
ピーク値が入力されると同時にそのピーク値を検出し、
最新のピーク値でその値を更新するととにもホールドし
て後段の燃料供給量演算装置７に遅滞なく出力すること
になる。That is, the voltage regulator 6 is composed of a peak detection circuit 11 and a sample hold circuit 12, and the peak detection circuit 1
2 is configured to detect each peak voltage VI of the DC pulsating voltage VI rectified by the rectifier circuit B5, and the sample hold circuit 12 converts each peak voltage VP detected by the peak detection circuit 11 into the next peak voltage VP. It is configured to output to the fuel supply amount calculation device 7 while holding the amount until the amount is reached manually. <Operation> In the present invention, the current transformer 4 and the rectifier circuit 5
Each time the load detection signal inputted to the voltage regulator 6 via the voltage regulator 6 reaches a peak, the peak value is detected by the peak detection circuit
The sample and hold circuit 12 detects the signal and holds it in the sample and hold circuit 12. Therefore, the voltage regulator 6 detects the peak value of the load detection signal at the same time as the peak value is input,
When the value is updated with the latest peak value, it is also held and output to the subsequent fuel supply amount calculation device 7 without delay.
く実施例〉 以下、本発明の実施例を図面に基づき説明する。Example Embodiments of the present invention will be described below based on the drawings.
第１図は本発明の一実施例に係るエンジン発電機の電子
制御式ガバナの構成を示す構威図である。FIG. 1 is a structural diagram showing the structure of an electronically controlled governor for an engine generator according to an embodiment of the present invention.
このエンジン発電機の電子制御式ガバナは、エンジン１
で駆動される発電機２の出力回路３にカレントトランス
４、整流回路５及び電圧調整装置６を介して燃料供給量
演算装置７が接続され、この燃料供給量演算装置７の演
算結果にしたがって燃料供給装置８の燃料調量用アクチ
ュエータ９が所要量作動するようになっている。The electronically controlled governor of this engine generator is
A fuel supply amount calculation device 7 is connected to the output circuit 3 of the generator 2 driven by The fuel metering actuator 9 of the supply device 8 is adapted to operate the required amount.
上記整流回路５が出力する直流脈動電圧■１は電圧調整
装置６を構或するピーク電圧検出回路１１及びサンプル
ホールド回路工２に入力され、第２図（ａ）に示すよう
にピーク電圧検出回路１１が直流脈動電圧Ｖ１のピーク
電圧ＶＩを検出するごとにサンプルホールド回路１２が
そのピーク電圧ＶＰをサンプリングし、次回のサンプリ
ングまでそのピーク電圧ＶＩをホールドするように構威
されている。そして、このサンプルホールド回路１２が
ホールドしているピーク電圧ＶＩは所定の周期で燃料供
給量演算装置７に読み出されるようになっている。The DC pulsating voltage 1 outputted from the rectifier circuit 5 is inputted to the peak voltage detection circuit 11 and sample hold circuit 2 which constitute the voltage regulator 6, and as shown in FIG. 2(a), the peak voltage detection circuit 11 detects the peak voltage VI of the DC pulsating voltage V1, the sample and hold circuit 12 samples the peak voltage VP and holds the peak voltage VI until the next sampling. The peak voltage VI held by the sample hold circuit 12 is read out to the fuel supply amount calculating device 7 at predetermined intervals.
なお、上記ピーク電圧検出回路１１は、直流脈動電圧Ｖ
Ｉのピーク時を検出するように構威してあればよく、例
えば、入力を微分する微分回路と、この微分結果のゼロ
クロス点を立ち下がり（あるいは立ち上がり）とするパ
ルスを形成するパルス発生回路とで構成することができ
る。Note that the peak voltage detection circuit 11 detects the DC pulsating voltage V
It suffices if the device is configured to detect the peak time of I, for example, a differentiation circuit that differentiates the input, and a pulse generation circuit that forms a pulse whose falling (or rising) point is the zero crossing point of this differentiation result. It can be composed of
また第１図中、ｌ３は燃料タンク、１４は燃料ボンブ、
ｌ５は圧力設定弁、ｌ７は燃料噴射ボンフ、１８は燃料
噴射量調節ランクである。In addition, in Fig. 1, l3 is a fuel tank, 14 is a fuel bomb,
15 is a pressure setting valve, 17 is a fuel injection valve, and 18 is a fuel injection amount adjustment rank.
このエンジン発電機の電子制御式ガバナにおいては、整
流回路５が出力する直流脈動電圧ｖ１がピーク値に達す
るごとにそのピーク電圧■２がサンプリングされ、負荷
信号として随時燃料供給量演算装置７に読み出され、こ
の負荷信号に基づきアクチュエータ９の動作量が演算さ
れ、その動作量に対応する信号値の制御信号がアクチュ
エータ９に出力されることになる。したがって、電圧調
整装置６における信号遅れは直流脈動電圧■１の脈動周
期、例えば１ ０ｍｓ程度の短時間になり、電子制御式
ガバナの応答性が高められる。同時に、少なくとも直流
脈動電圧ＶＩの１周期間はサンプルホールド回路１２に
ホールドされたピーク電圧■，が負荷信号として出力さ
れるので、負荷信号のリフブルがなくなり、電子制御式
ガバナの動作の安定性が高められる。In the electronically controlled governor of this engine generator, each time the DC pulsating voltage v1 output from the rectifier circuit 5 reaches a peak value, the peak voltage (2) is sampled and read as a load signal to the fuel supply amount calculation device 7. The amount of operation of the actuator 9 is calculated based on this load signal, and a control signal having a signal value corresponding to the amount of operation is output to the actuator 9. Therefore, the signal delay in the voltage regulator 6 becomes as short as the pulsation period of the DC pulsating voltage (1), for example, about 10 ms, and the responsiveness of the electronically controlled governor is improved. At the same time, the peak voltage ■, held in the sample-and-hold circuit 12 is output as a load signal for at least one cycle of the DC pulsating voltage VI, so that the load signal does not riffle and the stability of the operation of the electronically controlled governor is improved. be enhanced.
く発明の効果〉
以上のように、本発明は、発電機の出力回路にカレント
トランス、整流回路及び電圧調整装置を介して燃料供給
量演算装置が接続され、この燃料供給量演算装置の演算
結果にしたがって燃料供給装置の燃料調量用アクチュエ
ー夕を所要量作動させるエンジン発電機の電子制御式ガ
バナにおいて、電圧調整装置が、整２ｉｔ回路の出力が
ピーク値に達するごとにそのピーク電圧をサンプリング
してホールドし、随時燃料供給量演算装置に読み出せる
ように構威してあるので、電圧調整装置における信号遅
れが整流回路出力の脈動周期、すなわち、発電機の出力
の周期程度の短時間になり、電子制御式ガバナの応答性
が高められることになる。また、少なくともその１脈動
周期間はサンプルホールド回路にホールドされたピーク
電圧が負荷信号として出力されるので、負荷信号のリッ
プルがなくなり、電子制御式ガバナの動作の安定性が高
められることになる。Effects of the Invention> As described above, in the present invention, a fuel supply amount calculation device is connected to the output circuit of a generator via a current transformer, a rectifier circuit, and a voltage adjustment device, and the calculation result of this fuel supply amount calculation device is In the electronically controlled governor of the engine generator, which operates the fuel metering actuator of the fuel supply system according to the required amount, the voltage regulator samples the peak voltage every time the output of the regulator circuit reaches the peak value. Since the signal is held and can be read out to the fuel supply amount calculation device at any time, the signal delay in the voltage regulator is as short as the pulsation period of the rectifier circuit output, that is, the period of the generator output. , the responsiveness of the electronically controlled governor will be improved. Furthermore, since the peak voltage held in the sample-and-hold circuit is output as a load signal during at least one pulsation cycle, ripples in the load signal are eliminated and the stability of the operation of the electronically controlled governor is improved.
第１図は本発明の一実施例に係るエンジン発電機の電子
制御式ガバナの構成を示す構威図、第２図（ａ）はその
電圧調整装置の人力と出力とを比較して示す信号波形図
、第２図（ｂ）は従来例の電圧調整装置の入力と出力と
を比較して示す信号波形図、第３図は従来例の構成図で
ある。
ｌ・・・エンジン、２・・・発電機、３・・・出力回路
、４・・・カレントトランス、５・・・整流回路、６・
・・電圧調整装置、７・・・燃料供給量演算装置、８・
・・燃料供給装置、９・・・アクチュエー夕、ｌ１・・
・ピーク検出回路、１２・・・サンプルホールド回路１
２。FIG. 1 is a configuration diagram showing the configuration of an electronically controlled governor for an engine generator according to an embodiment of the present invention, and FIG. 2(a) is a signal showing a comparison between human power and output of the voltage regulator. FIG. 2(b) is a signal waveform diagram comparing the input and output of a conventional voltage regulator, and FIG. 3 is a configuration diagram of the conventional voltage regulator. l... Engine, 2... Generator, 3... Output circuit, 4... Current transformer, 5... Rectifier circuit, 6...
... Voltage adjustment device, 7... Fuel supply amount calculation device, 8.
...Fuel supply device, 9...Actuator, l1...
・Peak detection circuit, 12...sample hold circuit 1
2.
Claims (1)
路（３）にカレントトランス（４）、整流回路（５）、
電圧調整装置（６）及び燃料供給量演算装置（７）を介
して燃料供給装置（８）の燃料調量用アクチュエータ（
９）を連係させた、エンジン発電機の電子制御式ガバナ
において、電圧調整装置（６）がピーク検出回路（１１
）とサンプルホールド回路（１２）とで構成され、ピー
ク検出回路（１１）は整流回路（５）で整流された直流
脈動電圧Ｖ＿Ｉの各ピーク電圧Ｖ＿Ｐを検出するように
構成され、 サンプルホールド回路（１２）が、ピーク検出回路（１
１）で検出された各ピーク電圧Ｖ＿Ｐを次のピーク電圧
Ｖ＿Ｐが入力さるまでホールドしながら、燃料供給量演
算装置（７）に出力するように構成された事を特徴とす
る、エンジン発電機の電子制御式ガバナ[Claims] 1. The output circuit (3) of the generator (2) driven by the engine (1) includes a current transformer (4), a rectifier circuit (5),
The fuel metering actuator (
9), in which the voltage regulator (6) is connected to the peak detection circuit (11).
) and a sample hold circuit (12), the peak detection circuit (11) is configured to detect each peak voltage V_P of the DC pulsating voltage V_I rectified by the rectifier circuit (5), and the sample hold circuit ( 12) is the peak detection circuit (1
An engine generator characterized by being configured to output each peak voltage V_P detected in 1) to a fuel supply amount calculation device (7) while holding each peak voltage V_P until the next peak voltage V_P is input. electronically controlled governor
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15514789A JPH0323343A (en) | 1989-06-16 | 1989-06-16 | Electronic control type governor for engine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15514789A JPH0323343A (en) | 1989-06-16 | 1989-06-16 | Electronic control type governor for engine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0323343A true JPH0323343A (en) | 1991-01-31 |
Family
ID=15599565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15514789A Pending JPH0323343A (en) | 1989-06-16 | 1989-06-16 | Electronic control type governor for engine generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5740274A (en) * | 1991-09-12 | 1998-04-14 | Fuji Photo Film Co., Ltd. | Method for recognizing object images and learning method for neural networks |
| US6728404B1 (en) | 1991-09-12 | 2004-04-27 | Fuji Photo Film Co., Ltd. | Method for recognizing object images and learning method for neural networks |
-
1989
- 1989-06-16 JP JP15514789A patent/JPH0323343A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5740274A (en) * | 1991-09-12 | 1998-04-14 | Fuji Photo Film Co., Ltd. | Method for recognizing object images and learning method for neural networks |
| US6208758B1 (en) | 1991-09-12 | 2001-03-27 | Fuji Photo Film Co., Ltd. | Method for learning by a neural network including extracting a target object image for which learning operations are to be carried out |
| US6728404B1 (en) | 1991-09-12 | 2004-04-27 | Fuji Photo Film Co., Ltd. | Method for recognizing object images and learning method for neural networks |
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