JPH0323343A - Electronic control type governor for engine generator - Google Patents

Electronic control type governor for engine generator

Info

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
Application number
JP15514789A
Other languages
Japanese (ja)
Inventor
Yasushi Matsuda
康 松田
Yasuichi Kamata
鎌田 保一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP15514789A priority Critical patent/JPH0323343A/en
Publication of JPH0323343A publication Critical patent/JPH0323343A/en
Pending legal-status Critical Current

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  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To improve response of an electronic control governor by a method wherein a voltage regulating device connected to the output circuit of a generator is formed such that a peak voltage is sampled and held each time an output from a rectifying circuit attains a peak value, and read by a fuel feed amount computing device upon occasion. CONSTITUTION:In an electron control type governor, a fuel feed amount computing device 7 is connected to an output circuit 3 of a generator 2, run with the aid of an engine 1, through a current transformer 4, a rectifying circuit 5, and a voltage regulating device 6. According to the computing result of the computing device 7, an actuator 9 for regulating a fuel amount of a fuel feed device 8 is driven. In this case, a voltage regulating device 6 is formed with a peak detecting circuit 11 and a sample hold circuit 12. Each peak voltage Vp of a DC pulsation voltage V1 rectified by a rectifying circuit 5 is detected by a peak detecting circuit 11. The detected peak voltage Vp is outputted to the computing device 7 as it is held by a sample hold circuit 12 until a subsequent peak voltage Vp is inputted.

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.

【図面の簡単な説明】[Brief explanation of 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、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)

【特許請求の範囲】 1、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
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
JP15514789A 1989-06-16 1989-06-16 Electronic control type governor for engine generator Pending JPH0323343A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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