JPS60125755A - Method of correcting output of control position sensor of electronic governor - Google Patents
Method of correcting output of control position sensor of electronic governorInfo
- Publication number
- JPS60125755A JPS60125755A JP23233383A JP23233383A JPS60125755A JP S60125755 A JPS60125755 A JP S60125755A JP 23233383 A JP23233383 A JP 23233383A JP 23233383 A JP23233383 A JP 23233383A JP S60125755 A JPS60125755 A JP S60125755A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- output
- position sensor
- control position
- actuator
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
- F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
- F02D1/08—Transmission of control impulse to pump control, e.g. with power drive or power assistance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
【発明の詳細な説明】
く本発明の技術分野〉
本発明は、電子ガバナにおける制御位置センサの出力補
正方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a method for correcting the output of a control position sensor in an electronic governor.
本発明は、エンジンの電子ガバナ、すなわち、目標回転
数に実回転数が一致するように、マイコン、カスタムＩ
Ｃ１半導体などの電子デバイスを有する制御回路を用い
てアクチュエータを介して速度調節要素を変位させる電
子ガバナであって、その速度調筋要素の変位、すなわち
、制御位置を検出する制御位置センサを備えるものに適
用される。The present invention uses an electronic governor for the engine, that is, a microcomputer, a custom I
An electronic governor that uses a control circuit having an electronic device such as a C1 semiconductor to displace a speed adjustment element via an actuator, and is equipped with a control position sensor that detects the displacement of the speed adjustment element, that is, the control position. applied to.
〈従来技術とその欠点〉
従来、アクチュエータ、速度調節要素、制御位置センサ
などの部品製作誤差、組立誤差などにより制御位置セン
サの出力に誤差が生しることや、アクチュエータ、速度
調節要素、制御位置センサなどの摩耗により、制御位置
センサに経時的誤差が生じることが知られている。この
ような制御位置センサの出力誤差を解消するためには、
製作誤差、組立誤差を少なくしたり、ある程度煩繁に出
力を調整し直したりしなければならないが、このような
努力にはコスト的な問題による限度がある。<Prior art and its drawbacks> Conventionally, errors in the output of the control position sensor may occur due to manufacturing errors or assembly errors in parts such as actuators, speed adjustment elements, control position sensors, etc. It is known that errors in control position sensors occur over time due to wear of sensors and the like. In order to eliminate such output error of the control position sensor,
Although it is necessary to reduce manufacturing errors and assembly errors, and to readjust the output in a somewhat complicated manner, such efforts are limited by cost issues.
実際には、これらアクチュエータ、速度調節要素、制御
位置センサなどの製作精度や組立精度が特に上述の誤差
解消という観点から高められることはなく、結果的には
、制御位置センサの出力と速度調節要素の位置とが正確
に対応させられず、エンジンの性能にばらつきが生じる
欠点がある。また、摩耗などによる制御位置センサの出
力の変化も全く無視されており、制御位置センサの出力
の経時的変化によるエンジンの性能の変化は解消されて
いない。In reality, the manufacturing accuracy and assembly accuracy of these actuators, speed adjustment elements, control position sensors, etc. are not particularly improved from the viewpoint of eliminating the above-mentioned errors, and as a result, the output of the control position sensor and the speed adjustment element are The disadvantage is that the position of the engine cannot be made to correspond accurately with the position of the engine, resulting in variations in engine performance. Furthermore, changes in the output of the control position sensor due to wear and the like are completely ignored, and changes in engine performance due to changes in the output of the control position sensor over time have not been resolved.
〈本発明の目的〉
本発明は、上述の実情を鑑み、速度１１１１筋要素の位
置と制御位置センサの出力とを正確に対応させ、製作精
度や組立精度のような生産時に生じる機械的誤差が原因
となっているエンジン性能のばらつきや、摩耗などが原
因となって経時的に生じてくる機械的誤差等によるエン
ジン性能の変化をなくすことを目的とする。<Objective of the present invention> In view of the above-mentioned circumstances, the present invention accurately correlates the position of the velocity 1111 muscle element and the output of the control position sensor, and eliminates mechanical errors that occur during production such as manufacturing accuracy and assembly accuracy. The purpose is to eliminate variations in engine performance, which are the cause, and changes in engine performance due to mechanical errors that occur over time due to wear and other causes.
〈本発明の目的〉
このような目的を達成するために、本発明は、エンジン
の始動に際して、エンジンを回転させる前に、アクチュ
エータに０〜１００％デユーティの範囲で連続的に変化
する電流を印加し、アクチュエータに連動させた速度調
節要素の位置を検出する制御位置センサの出力が変化す
る範囲を検出し、この範囲の少なくとも一端におけるア
クチュエータのデユーティ値および／主たは制御位置セ
ンサの出力信号値を基準データとして記憶装置に記憶さ
せ、記憶された基準データに基づき始動されたエンジン
の制御位置センサの出力の補正を行なう。<Object of the present invention> In order to achieve such an object, the present invention applies a current that continuously changes in the range of 0 to 100% duty to the actuator before rotating the engine when starting the engine. and detects a range in which the output of a control position sensor that detects the position of a speed adjustment element linked to an actuator changes, and detects the duty value of the actuator and/or the output signal value of the main or control position sensor at at least one end of this range. is stored in the storage device as reference data, and the output of the control position sensor of the engine that has been started is corrected based on the stored reference data.
〈実施例の説明〉 以下、本発明の実施例を図面に基づき説明する。<Explanation of Examples> Embodiments of the present invention will be described below based on the drawings.
第１図はディーゼルエンジンの電子〃バナの要部を示す
図であり、１は燃料噴射ポンプ、２はその噴射量調節ラ
ックよりなる速度調節要素、３はアクチュエータ、４は
ラック位置センサよりなる制御位置センサ、５は速度調
筋要素２をアクチュエータ３のブツシュロッドの先端に
押し当てるための戻しばねである。この場合、燃料噴射
ポンプ１とアクチュエータ３および制御位置センサ４と
カ別々にエンジン６の固定部に取り付けられていること
から、これらの相対的な位置に組立て誤差などによる何
らかのばらつきが生じる。したがって、速度調節要素２
の位置に対応して制御位置センサ４力咄力する信号値に
もその組立誤差によるばらつきが生じるのである。Fig. 1 is a diagram showing the main parts of the electronic banner of a diesel engine, where 1 is a fuel injection pump, 2 is a speed adjustment element consisting of an injection amount adjustment rack, 3 is an actuator, and 4 is a control consisting of a rack position sensor. The position sensor 5 is a return spring for pressing the speed adjusting element 2 against the tip of the bushing rod of the actuator 3. In this case, since the fuel injection pump 1, actuator 3, and control position sensor 4 are separately attached to fixed parts of the engine 6, some variation occurs in their relative positions due to assembly errors or the like. Therefore, speed regulating element 2
The signal value outputted by the control position sensor 4 corresponding to the position also varies due to the assembly error.
そこで、エンジンの始動に際して、エンジン６を回転さ
せる前に、たとえば、スタータスイッチを入れた時瞬間
に、バッテリ７から制御回路８を介してアクチュエータ
３に０〜１００％デユーティの範囲で連続的に変化する
電流を印加する。たとえば、デユーティを瞬時に１００
％にしてから連続して一様に減少させると、速度調節要
素４は、まず最大変位位置まで変位させられて静止させ
られ、その位置に対応するデユーティ値以下にデユーテ
ィが下げられることにより最大変位位置から変位０点に
向って変位させられ、変位０点に対応するデユーティ値
以下にデユーティが下がると変位０点に静止させられる
。したがって、速度調筋要素２の変位に対応して変化す
る制御位置センサ４の出力Ｖｅはデユーティ値に対して
第２図に示す関係に従って変化し、２つの屈曲点Ａ−Ｂ
の出力が速度調節要素２の最大変位位置と変位０点とに
正確に対応する制御位置センサ４の出力となる。Therefore, when starting the engine, before the engine 6 is rotated, for example, at the moment when the starter switch is turned on, the duty is continuously changed in the range of 0 to 100% from the battery 7 to the actuator 3 via the control circuit 8. Apply a current to For example, the duty can be set to 100 instantly.
% and then continuously and uniformly decreased, the speed adjusting element 4 is first displaced to the maximum displacement position and then stopped, and then the duty is lowered below the duty value corresponding to that position to reach the maximum displacement. It is displaced from the position toward the zero displacement point, and when the duty falls below the duty value corresponding to the zero displacement point, it is stopped at the zero displacement point. Therefore, the output Ve of the control position sensor 4, which changes in response to the displacement of the speed adjustment element 2, changes with respect to the duty value according to the relationship shown in FIG.
The output of the control position sensor 4 corresponds precisely to the maximum displacement position of the speed regulating element 2 and the zero displacement point.
この速度調筋要素２の変位０煮と最大変位位置に対応す
る２点を、たとえば制御位置センサ４の出力の微分値か
ら検出でき、その２点におけるアクチュエータ３のデユ
ーティ値および制御位置センサ４の出力信号値を得るこ
とができる。最大変位位置におけるアクチュエータ３の
デユーティ値および制御位置センサ４の出力信号値を最
大変位データとして、変位０点におけるアクチュエータ
３のデユーティ値および制御位置センサ４の出力信号値
を０点データとして図示しない記憶装置に記憶させ、こ
れら０点データおよび最大変位データに基づき始動され
たエンジンの制御位置センサ４かち得られる未補正の出
力を図示しないマイコン、ＩＣなどの演算回路を用いて
補正を行なう。The two points corresponding to the zero displacement position and the maximum displacement position of the speed adjustment element 2 can be detected, for example, from the differential value of the output of the control position sensor 4, and the duty value of the actuator 3 and the position of the control position sensor 4 at these two points are detected. The output signal value can be obtained. The duty value of the actuator 3 and the output signal value of the control position sensor 4 at the maximum displacement position are stored as maximum displacement data, and the duty value of the actuator 3 and the output signal value of the control position sensor 4 at the zero displacement point are stored as 0 point data, not shown. The uncorrected output obtained from the control position sensor 4 of the engine started based on the zero point data and maximum displacement data is corrected using an arithmetic circuit such as a microcomputer or IC (not shown).
その結果、速度調節要素２の実際の位置に対応する補正
された制御位置センサ４の出力による制御が行えること
になる。換言すると、制御位置センサ４の出力がエンジ
ンを始動するごとに、部品製作誤差、組立誤差、摩耗に
よる誤差など、全ての機械的誤差に対する補正が行なわ
れることになり、これらの誤差によるエンジン性能の製
作時のばらつきおよび経時的変化をなくせる。As a result, control can be performed using the corrected output of the control position sensor 4 corresponding to the actual position of the speed adjustment element 2. In other words, every time the output of the control position sensor 4 starts the engine, all mechanical errors, such as parts manufacturing errors, assembly errors, and wear-related errors, are corrected, and engine performance is affected by these errors. Eliminates variations during manufacturing and changes over time.
また、本例では、最大変位データとして、最大変位位置
におけるアクチュエータのデユーティ値が記憶されてい
るので、それまたはそれを基準にして定められた基準デ
ユーティ値と現在バッテリ７によって出力されているデ
ユ−ティ値とを比較することにより、バッテリ７の出力
が所定値以上になっているか否かを判別することができ
る。この場合、さらに、バッテリ７の出力が不足すると
きにランプ、信号音などにより運転者に知らせるように
できる。In addition, in this example, since the duty value of the actuator at the maximum displacement position is stored as the maximum displacement data, the duty value currently output by the battery 7 and the reference duty value determined based on it or the duty value of the actuator at the maximum displacement position are stored as the maximum displacement data. It can be determined whether the output of the battery 7 is equal to or higher than a predetermined value by comparing the output value with the T value. In this case, furthermore, when the output of the battery 7 is insufficient, the driver can be notified by a lamp, a signal sound, or the like.
ももろん、本発明は上述の実施例に限らず、たとえば、
アクチュエータに印加する電流のデユーティ値をＯから
１００％まで連続的に一様に増大させ、０点データと最
大変位データとを順に得るようにしてもよい。Of course, the present invention is not limited to the above-mentioned embodiments, for example,
The duty value of the current applied to the actuator may be continuously and uniformly increased from 0 to 100%, and the 0 point data and the maximum displacement data may be obtained in order.
〈本発明の効果〉
以上説明したように、本発明に係るエンジンの電子〃バ
ナにおける制御位置センサの出力補正方法によれば、制
御位置センサの出力補正値がエンジンを始動するごとに
得られ、その補正値による制御位置センサの出力の補正
が行なわれるので、部品製作誤差、組立誤差、摩耗によ
る誤差など、全ての機械的誤差に対する補正がエンジン
を始動するごとに行なわれることになり、これらの誤差
によるエンジン性能の製作時のばらっぎおよび経時的変
化をなくせる。また、このように機械的誤差によるエン
ジン性能のばらつきを解消できることから、部品製作精
度や組立精度をある程度Ｉｌｌ＜できる。<Effects of the present invention> As explained above, according to the method for correcting the output of the control position sensor in the electronic banner of the engine according to the present invention, the output correction value of the control position sensor is obtained every time the engine is started, Since the output of the control position sensor is corrected using the correction value, all mechanical errors, such as parts manufacturing errors, assembly errors, and wear-related errors, are corrected each time the engine is started. It is possible to eliminate variations in engine performance during manufacturing and changes over time due to errors. Further, since variations in engine performance due to mechanical errors can be eliminated in this way, parts manufacturing accuracy and assembly accuracy can be improved to a certain extent.
特に、速度調節要素が変位する範囲の両端について制御
ｍ位置センサの出力を記憶させ、これらを共に補正値の
算出の基準とする場合には、より正確な補正値を算出で
きるので、一層正確な制御ができるようになる。In particular, if the outputs of the control m position sensor are stored at both ends of the range in which the speed adjustment element is displaced, and these are both used as standards for calculating the correction value, a more accurate correction value can be calculated. Gain control.
第１図はディーゼルエンジンの電子〃バナの要部を示す
図、第２図はアクチュエータデユーティ値−制御位置セ
ンサ出力関係線図である。
２・・・速度調節要素、３・・・アクチュエータ、４・
・・制御位置センサ、６・・・エンジン。FIG. 1 is a diagram showing the main parts of an electronic banner of a diesel engine, and FIG. 2 is a diagram showing the relationship between actuator duty value and control position sensor output. 2... Speed adjustment element, 3... Actuator, 4...
...Control position sensor, 6...Engine.
Claims (1)
せる前に、アクチュエータ３に０〜１００％デユーティ
の範囲で連続的に変化する電流を印加し、アクチュエー
タ３に連動させた速度調節要素２の位置を検出する制御
位置センサ４の出力が変化する範囲を検出し、この範囲
の少なくとも一端におけるアクチュエータ３のデユーテ
ィ値および／または制御位置センサ４の出力信号値を基
準データとして記憶装置に記憶させ、記憶された基準デ
ータに基づき始動されたエンジン４の制御位置センサ３
の出力の補正を行なう、電子がバナにおける制御位置セ
ンサの出力補正方法1. When starting the engine 6, before rotating the engine 6, apply a current that changes continuously in the range of 0 to 100% duty to the actuator 3, and adjust the position of the speed adjustment element 2 linked to the actuator 3. A range in which the output of the control position sensor 4 to be detected changes is detected, and the duty value of the actuator 3 and/or the output signal value of the control position sensor 4 at at least one end of this range is stored in a storage device as reference data. Control position sensor 3 for engine 4 started based on reference data
A method for correcting the output of a control position sensor in an electronically controlled position sensor that corrects the output of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23233383A JPS60125755A (en) | 1983-12-08 | 1983-12-08 | Method of correcting output of control position sensor of electronic governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23233383A JPS60125755A (en) | 1983-12-08 | 1983-12-08 | Method of correcting output of control position sensor of electronic governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60125755A true JPS60125755A (en) | 1985-07-05 |
Family
ID=16937550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23233383A Pending JPS60125755A (en) | 1983-12-08 | 1983-12-08 | Method of correcting output of control position sensor of electronic governor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60125755A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04136431A (en) * | 1990-09-28 | 1992-05-11 | Hitachi Constr Mach Co Ltd | Revolution speed controller for prime mover |
| US5205256A (en) * | 1988-10-01 | 1993-04-27 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
| JPH0643238U (en) * | 1992-11-18 | 1994-06-07 | 株式会社小松製作所 | Abnormality detection device for electronic fuel injection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713241A (en) * | 1980-06-30 | 1982-01-23 | Diesel Kiki Co Ltd | Fuel injector |
| JPS5724428A (en) * | 1980-07-18 | 1982-02-09 | Diesel Kiki Co Ltd | Electronically controlled fuel injection device |
| JPS59173531A (en) * | 1983-03-18 | 1984-10-01 | Nippon Denso Co Ltd | Fuel injection timing adjusting device for internal-combustion engine |
-
1983
- 1983-12-08 JP JP23233383A patent/JPS60125755A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5713241A (en) * | 1980-06-30 | 1982-01-23 | Diesel Kiki Co Ltd | Fuel injector |
| JPS5724428A (en) * | 1980-07-18 | 1982-02-09 | Diesel Kiki Co Ltd | Electronically controlled fuel injection device |
| JPS59173531A (en) * | 1983-03-18 | 1984-10-01 | Nippon Denso Co Ltd | Fuel injection timing adjusting device for internal-combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205256A (en) * | 1988-10-01 | 1993-04-27 | Robert Bosch Gmbh | Fuel injection pump for internal combustion engines |
| JPH04136431A (en) * | 1990-09-28 | 1992-05-11 | Hitachi Constr Mach Co Ltd | Revolution speed controller for prime mover |
| JPH0643238U (en) * | 1992-11-18 | 1994-06-07 | 株式会社小松製作所 | Abnormality detection device for electronic fuel injection device |
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