JPH056111U - Electromagnetic valve - Google Patents
Electromagnetic valveInfo
- Publication number
- JPH056111U JPH056111U JP6063791U JP6063791U JPH056111U JP H056111 U JPH056111 U JP H056111U JP 6063791 U JP6063791 U JP 6063791U JP 6063791 U JP6063791 U JP 6063791U JP H056111 U JPH056111 U JP H056111U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- sub
- valve
- electromagnetic valve
- energized
- 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.)
- Granted
Links
Landscapes
- Valve Device For Special Equipments (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
(57)【要約】
【目的】電磁力により開閉弁される電磁バルブを駆動す
るコイルの通電時の制御性や応答性の改善を図る。
【構成】電磁バルブ１を電磁力により駆動するメインコ
イル３に先行して通電するサブコイル４を付設し、電磁
バルブ１の駆動時には、まずサブコイル４に通電し、そ
のオフ時とメインコイル３のオンとをコントローラ５に
より同時にスイッチ部６を制御して、サブコイル４のオ
フ時に発生する起電力をメインコイル３への通電に重畳
させてその立上り特性を改善する。
(57) [Summary] [Purpose] To improve the controllability and responsiveness of a coil that drives an electromagnetic valve that is opened and closed by electromagnetic force when the coil is energized. [Structure] A sub-coil 4 is energized prior to a main coil 3 that drives the electromagnetic valve 1 by electromagnetic force. When the electromagnetic valve 1 is driven, the sub-coil 4 is first energized, and when it is off and when the main coil 3 is on. And the controller 5 simultaneously control the switch section 6 to superimpose the electromotive force generated when the sub-coil 4 is turned off on the power supply to the main coil 3 to improve the rising characteristic thereof.
Description
【０００１】[0001]
本考案はソレノイドコイルに通電時の立上り特性を改善しようとする電磁駆動 バルブに関する。 The present invention relates to an electromagnetically driven valve intended to improve a rising characteristic when a solenoid coil is energized.
【０００２】[0002]
従来よりエンジンの吸排気バルブは、クランク軸の回転に対応して作動するリ ンクやカムなどにより駆動される吸排気バルブが使用されているが、バルブの開 閉タイミングの変更や、バルブの駆動力を適切に制御するため、電磁力によるバ ルブ駆動装置が本出願人により特開平２−１８１００６号に示されている。 Conventionally, intake and exhaust valves of engines have been intake and exhaust valves that are driven by links or cams that operate in response to crankshaft rotation.However, changing the valve open / close timing and driving the valve In order to properly control the force, a valve drive device using electromagnetic force is disclosed in Japanese Patent Laid-Open No. 2-181006 by the present applicant.
【０００３】[0003]
上述の特許公報に示された提案では、バルブのステム部に永久磁石を取付け、 その上方に電磁石を配置し、電磁石のコイルに電力を供給して生ずる電磁力によ り永久磁石を駆動し開閉弁を行っているが、コイルには自己インダクタンスや内 部抵抗により定まる固有の時定数を有しており、このため、磁束を生じさせる電 力を印加してもコイルの時定数により電流が遅れて磁力の立上りに時間を要し、 制御性や応答性が悪化するという問題がある。 In the proposal disclosed in the above-mentioned patent publication, a permanent magnet is attached to the stem portion of the valve, an electromagnet is arranged above it, and the permanent magnet is driven by an electromagnetic force generated by supplying power to the coil of the electromagnet to open and close. Although a valve is used, the coil has a unique time constant determined by the self-inductance and internal resistance.Therefore, even if an electric power that causes magnetic flux is applied, the current will be delayed due to the time constant of the coil. Therefore, it takes time for the magnetic force to rise, which deteriorates controllability and responsiveness.
【０００４】 本考案はこのような問題に鑑みてなされたものであり、その目的は電磁バルブ を駆動するコイルにサブコイルを付加して応答性を改善しようとする電磁駆動バ ルブを提供することにある。The present invention has been made in view of the above problems, and an object thereof is to provide an electromagnetically driven valve in which a sub coil is added to a coil for driving an electromagnetic valve to improve response. is there.
【０００５】[0005]
上述の目的を達成するために本考案によれば、ソレノイド状に巻回されたコイ ルに通電し、その電磁力により吸／排気用のバルブを駆動して開閉弁せしめる電 磁駆動バルブにおいて、前記コイルに先行して通電せしめるサブコイルと、該サ ブコイルのオフと前記コイルのオンとを同時に制御してサブコイルのオフ時の逆 起電力のエネルギーを通電時の電力に重畳せしめる通電制御手段とを有する電磁 駆動バルブが提供される。 According to the present invention to achieve the above object, in an electromagnetically driven valve that energizes a coil wound like a solenoid and drives an intake / exhaust valve by the electromagnetic force to open and close the valve, A sub-coil that is energized prior to the coil, and an energization control unit that simultaneously controls the sub-coil off and the coil on to superimpose the counter electromotive force energy when the sub-coil is off on the power when energized. An electromagnetically driven valve having is provided.
【０００６】[0006]
つぎに、本考案の実施例について図面を用いて詳細に説明する。 Next, an embodiment of the present invention will be described in detail with reference to the drawings.
【０００７】 図１は本考案にかかる電磁駆動バルブの一実施例を示す構成ブロック図であり 、図２は本実施例における回路の説明図である。FIG. 1 is a configuration block diagram showing an embodiment of an electromagnetically driven valve according to the present invention, and FIG. 2 is an explanatory diagram of a circuit in this embodiment.
【０００８】 これらの図面において、１は電磁バルブで、例えばエンジンの吸気流路に設け られてその開閉により、シリンダへの吸気を制御するものであり、強磁性体から なるステム１１はシリンダヘッド２のバルブガイド２１により保持され、電磁バ ルブ１の上昇時には下方の弁部１２はバルブシート２２に密接して吸気流路を閉 鎖するように形成されている。In these drawings, reference numeral 1 denotes an electromagnetic valve, which is provided in, for example, an intake passage of an engine to control intake and exhaust to a cylinder by opening and closing the stem. Is held by the valve guide 21, and when the electromagnetic valve 1 rises, the lower valve portion 12 is formed in close contact with the valve seat 22 to close the intake passage.
【０００９】 ３はソレノイド状に巻回されたメインコイルで、その通電により発生する磁力 によって電磁バルブ１のステム１１を吸引して流路を閉鎖するものであり、４は サブコイルで、メインコイル３に近接して配置され、電磁バルブ１の駆動時には メインコイル３への通電に先駆けて作動させ、その電流断時の逆起電力を利用し てメインコイル３の立上り特性を改善するものである。Reference numeral 3 is a main coil wound in a solenoid shape, which attracts the stem 11 of the electromagnetic valve 1 by a magnetic force generated by energization of the main coil to close the flow path, and 4 is a sub-coil, which is the main coil 3 When the electromagnetic valve 1 is driven, the main coil 3 is activated prior to being energized, and the counter electromotive force generated when the current is cut off is used to improve the rising characteristics of the main coil 3.
【００１０】 コントロール部５は電子回路からなり、電磁バルブ１の駆動時にスイッチ部６ の有するメインコイル３用のスイッチＳ2 およびサブコイル４用のスイッチＳ1 を制御して、電源部７からの電力をそれぞれのコイル３，４に通電し電磁バルブ １を作動させるものである。The control unit 5 is composed of an electronic circuit and controls the switch S 2 for the main coil 3 and the switch S 1 for the sub coil 4 which the switch unit 6 has when the electromagnetic valve 1 is driven, so that the electric power from the power supply unit 7 is respectively supplied. The coils 3 and 4 are energized to operate the electromagnetic valve 1.
【００１１】 なお、図２におけるＤ1 およびＤ2 は半導体素子からなるダイオードで、所定 方向の電流は通ずるが、逆方向の電流は遮断して逆流を防止するもので、特にＤ 2 は後述するサブコイル４のオフ時の起電力の消滅を防止するものである。It should be noted that D1 and D2 in FIG. 2 are diodes composed of semiconductor elements, which pass a current in a predetermined direction but block a current in the reverse direction to prevent backflow. In particular, D 2 is a subcoil 4 to be described later. Is to prevent the electromotive force from disappearing when the power is turned off.
【００１２】 つぎに、このように構成された本実施例の作動を説明すると、電磁バルブ１の 駆動時は、メインコイル３への通電に先駆けて、サブコイル４への通電を行うた め、スイッチ部６のスイッチＳ1 をオンとし、続いてスイッチＳ1 のオフ、スイ ッチＳ2 のオンを同時に制御する。この場合、スイッチＳ1 のオフにてサブコイ ル４への通電は断たれるが、該サブコイル４の電磁誘導作用により、印加された 電源部７と同方向の起電力が生じ、この起電力がＤ1 を介して、電源部７からの 電力とともにメインコイル３に印加される。Next, the operation of the present embodiment configured as described above will be described. When the electromagnetic valve 1 is driven, the sub-coil 4 is energized prior to the energization of the main coil 3. The switch S1 of the section 6 is turned on, and then the switch S1 is turned off and the switch S2 is turned on at the same time. In this case, when the switch S1 is turned off, the power supply to the sub coil 4 is cut off. However, due to the electromagnetic induction action of the sub coil 4, an electromotive force in the same direction as the applied power source section 7 is generated, and this electromotive force is D1. Is applied to the main coil 3 together with the electric power from the power supply unit 7 via the.
【００１３】 図３はこの状態の電流波形の説明図で、図３の斜線部分にて示すサブコイル４ からの電気エネルギーが加わることにより、図４に示すサブコイルの無い場合の 波形に比してスイッチング時の立上り特性のよい電流がメインコイル３に通電さ れることになる。FIG. 3 is an explanatory diagram of the current waveform in this state. Switching is performed as compared with the waveform shown in FIG. 4 in the absence of the sub-coil due to the addition of electric energy from the sub-coil 4 shown by the hatched portion in FIG. A current having a good rising characteristic at that time is supplied to the main coil 3.
【００１４】 以上、本考案を上述の実施例によって説明したが、本考案の主旨の範囲内で種 々の変形が可能であり、これらの変形を本考案の範囲から排除するものではない 。Although the present invention has been described with reference to the above-described embodiments, various modifications can be made within the scope of the present invention, and these modifications are not excluded from the scope of the present invention.
【００１５】[0015]
上述の実施例のように本考案によれば、電磁バルブを駆動するメインコイルへ の通電に先行してサブコイルへの通電を行い、該サブコイルのオフとメインコイ ルのオンを同時に制御して、サブコイルのオフ時に発生する起電力をメインコイ ルに印加し電源部の電力に加えるので、メインコイルの電流の立上りが早くなり 、その制御や応答性が改善され、また電源部の電力の負担が減ずるという効果が 得られる。 According to the present invention as in the above embodiment, the sub coil is energized prior to the energization of the main coil for driving the electromagnetic valve, and the sub coil is turned off and the main coil is turned on at the same time. Since the electromotive force generated when the power is turned off is applied to the main coil and added to the power of the power supply unit, the rise of the current in the main coil is accelerated, its control and responsiveness are improved, and the load on the power supply unit is reduced. The effect is obtained.
【図１】本考案にかかる電磁駆動バルブの一実施例を示
す構成ブロック図である。FIG. 1 is a configuration block diagram showing an embodiment of an electromagnetically driven valve according to the present invention.
【図２】本実施例における回路の説明図である。FIG. 2 is an explanatory diagram of a circuit in this embodiment.
【図３】本実施例におけるメインコイルに通ずる電流波
形の説明図である。FIG. 3 is an explanatory diagram of a current waveform flowing through a main coil in the present embodiment.
【図４】サブコイルの無い場合のメインコイルの電流波
形の説明図である。FIG. 4 is an explanatory diagram of a current waveform of a main coil when there is no sub coil.
１…電磁バルブ ３…メインコイル ４…サブコイル ５…コントロール部 ６…スイッチ部 ７…電源部 1 ... Electromagnetic valve 3 ... Main coil 4 ... Sub coil 5 ... Control part 6 ... Switch part 7 ... Power supply part
Claims (1)
し、その電磁力により吸／排気用のバルブを駆動して開
閉弁せしめる電磁駆動バルブにおいて、前記コイルに先
行して通電せしめるサブコイルと、該サブコイルのオフ
と前記コイルのオンとを同時に制御してサブコイルのオ
フ時の逆起電力のエネルギーを通電時の電力に重畳せし
める通電制御手段とを有することを特徴とする電磁駆動
バルブ。[Claims for utility model registration] [Claim 1] An electromagnetically driven valve for energizing a coil wound in a solenoid shape and driving an intake / exhaust valve by the electromagnetic force to open and close the coil. A sub-coil that is energized in advance, and an energization control unit that simultaneously controls the turning off of the sub-coil and the turning-on of the coil to superimpose the counter electromotive force energy when the sub-coil is off on the power when energizing. And electromagnetically driven valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991060637U JP2592375Y2 (en) | 1991-07-06 | 1991-07-06 | Electromagnetic drive valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991060637U JP2592375Y2 (en) | 1991-07-06 | 1991-07-06 | Electromagnetic drive valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH056111U true JPH056111U (en) | 1993-01-29 |
| JP2592375Y2 JP2592375Y2 (en) | 1999-03-17 |
Family
ID=13148032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991060637U Expired - Fee Related JP2592375Y2 (en) | 1991-07-06 | 1991-07-06 | Electromagnetic drive valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2592375Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005291494A (en) * | 2004-03-05 | 2005-10-20 | Woodward Governor Co | Method to adaptively control and derive control voltage of solenoid valve based on valve closure point |
| WO2016174820A1 (en) * | 2015-04-27 | 2016-11-03 | 株式会社デンソー | Control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4899526A (en) * | 1972-04-06 | 1973-12-17 | ||
| JPH02291412A (en) * | 1989-05-01 | 1990-12-03 | Isuzu Ceramics Kenkyusho:Kk | Stepping driver for valve |
-
1991
- 1991-07-06 JP JP1991060637U patent/JP2592375Y2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4899526A (en) * | 1972-04-06 | 1973-12-17 | ||
| JPH02291412A (en) * | 1989-05-01 | 1990-12-03 | Isuzu Ceramics Kenkyusho:Kk | Stepping driver for valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005291494A (en) * | 2004-03-05 | 2005-10-20 | Woodward Governor Co | Method to adaptively control and derive control voltage of solenoid valve based on valve closure point |
| JP4585335B2 (en) * | 2004-03-05 | 2010-11-24 | ウッドワード・ガバナー・カンパニー | A method for adaptively controlling the control voltage of a solenoid valve based on the valve's fully closed point |
| WO2016174820A1 (en) * | 2015-04-27 | 2016-11-03 | 株式会社デンソー | Control device |
| JP2016205294A (en) * | 2015-04-27 | 2016-12-08 | 株式会社デンソー | Controller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2592375Y2 (en) | 1999-03-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |