JPS58174773A - Driving process of solenoid valve - Google Patents
Driving process of solenoid valveInfo
- Publication number
- JPS58174773A JPS58174773A JP5629582A JP5629582A JPS58174773A JP S58174773 A JPS58174773 A JP S58174773A JP 5629582 A JP5629582 A JP 5629582A JP 5629582 A JP5629582 A JP 5629582A JP S58174773 A JPS58174773 A JP S58174773A
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- frequency
- solenoid valve
- duty ratio
- signal
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Magnetically Actuated Valves (AREA)
- Flow Control (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はパルス幅変Ｎ（ＰＷＭ）方式を用いた電磁弁の
駆動方法Ｋｉｌする。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for driving a solenoid valve using a pulse width variable N (PWM) method.
従来、こＯａ［の電磁弁の駆動方法は、第１図（〜に示
すようにのζぎヤ波ａと流１指令偏号すとの電圧を比駿
すゐことにより第１図（ｂ）に示すようにＰＷＭ信号を
形成し、とのＰＷＭ信号を第２図に示す電磁弁１のソレ
ノイドＳＱＬに加え、ソレノイドＳＱＬを励磁すること
によって電磁弁ｌを駆動するようＫしている。Conventionally, the method for driving the solenoid valve Oa is to compare the voltage of the ζ gear wave a and the flow 1 command deviation as shown in Fig. 1(b). ), the PWM signal is added to the solenoid SQL of the solenoid valve 1 shown in FIG. 2, and the solenoid SQL is energized to drive the solenoid valve l.
この電磁弁１は、流量指令信号すに対応してそのパルス
幅、すなわちデユーティ比が変化するＰＷＭ信号によっ
て高速にオンオフするため、ポンプ２からアクチ１エー
タ（例えば油圧モータ）への単位時間当妙の流量制御が
できる。This electromagnetic valve 1 is turned on and off at high speed by a PWM signal whose pulse width, that is, duty ratio, changes in response to the flow rate command signal, so the unit time from the pump 2 to the actuator 1 (for example, a hydraulic motor) is The flow rate can be controlled.
しかし、かかる従来の電磁弁の駆動方法によると、第３
図のデユーティ比と流量との関係を示すグツ７からも明
らかなように、低デューテ富に短かい領域）では電磁弁
が追従できず、流量制御が困難で６つ九、一方、中デユ
ーティ比域Ｃでは圧力変動（流量変動）が激しく、アク
チュエータが大きく振動するといつ九問題があった。な
お、第４図はデユーティ比がそれぞれ０．１．０．５お
よび０．９におけるＰＷＭ偏号、電磁弁の動き、流量を
示している。However, according to the conventional method of driving a solenoid valve, the third
As is clear from Figure 7, which shows the relationship between duty ratio and flow rate in the figure, the solenoid valve cannot follow the low duty ratio (in the short range), making it difficult to control the flow rate. In area C, there were severe pressure fluctuations (flow rate fluctuations), and there were problems when the actuator vibrated greatly. Note that FIG. 4 shows the PWM eccentricity, the movement of the solenoid valve, and the flow rate at duty ratios of 0.1, 0.5, and 0.9, respectively.
本発明は上記問題点を解決する丸めになされたもので、
低デユーティ比域および高デユーテイ比域での作動を確
実にし、中デユーティ比域でのアクチュエータの振動を
大幅に低減する電磁弁の駆動方法を提供することを目的
とする。The present invention has been made to solve the above problems,
An object of the present invention is to provide a method for driving a solenoid valve that ensures operation in a low duty ratio range and a high duty ratio range and significantly reduces actuator vibration in a medium duty ratio range.
この発明によれば、流量指令信号と比較する所定の繰り
返し波の周波数を流量指令信号の示す指令流量に対応し
て変更することにより、低デユーティ比ψおよび高デユ
ーテイ比域において電磁弁が充分応答できるようにし、
中デユーティ比域において圧力変動を低減するようにし
ている。を九、前記所定の繰り返し波の周波数を流量指
令信号の示す指令流量に対応して変更するとともに、電
磁弁を駆動するパルス幅変調信号のデユーティ比の質化
率も前記指令流量に対応して変更することにより、低デ
ユーティ比域および高デユーテイ比域での流量特性のＩ
ＩＥ線性も改善している。According to this invention, by changing the frequency of a predetermined repetitive wave to be compared with the flow rate command signal in accordance with the command flow rate indicated by the flow rate command signal, the solenoid valve responds sufficiently in the low duty ratio ψ and high duty ratio ranges. make it possible,
It is designed to reduce pressure fluctuations in the medium duty ratio range. (9) The frequency of the predetermined repetitive wave is changed in accordance with the command flow rate indicated by the flow rate command signal, and the quality improvement rate of the duty ratio of the pulse width modulation signal that drives the solenoid valve is also changed in accordance with the command flow rate. By changing the I of the flow characteristics in the low duty ratio region and the high duty ratio region.
IE linearity has also been improved.
以下本発明を添付図面を参照して拝細に説明する。The present invention will now be described in detail with reference to the accompanying drawings.
第５因は本発明にかかわるｂｔ定の繰抄返し波の周波数
と流量指令信号との関係を示すグラフの一実施例である
。この繰り返し波の周波数は、電磁弁を駆動するパルス
幅ｆｉ！Ｊ（ＰＷＭ）（？！号の周波数を決定するもの
で、流量指令信号が最小流量ｔたは最大流量を指令する
と！（デユーティ比が最小または最大のとき）、最小周
波数となり、流量指令信号が中流緬８を指令するとき（
デユーティ比が０．５付近のとき）、最大周波数になる
ように設定されている。The fifth factor is an example of a graph showing the relationship between the frequency of the bt constant repetitive wave and the flow rate command signal according to the present invention. The frequency of this repetitive wave is the pulse width fi! that drives the solenoid valve. J (PWM) (?) This determines the frequency of the flow rate command signal. When the flow rate command signal commands the minimum flow rate t or maximum flow rate! (when the duty ratio is minimum or maximum), the frequency becomes the minimum frequency and the flow rate command signal When commanding midstream Myanmar 8 (
When the duty ratio is around 0.5), the frequency is set to be the maximum.
ここで、流量指令信号の示す指令流量に対応して繰や返
し波の周波数を決定する方法について説明する。Here, a method for determining the frequency of the repetitive wave in response to the command flow rate indicated by the flow rate command signal will be explained.
まず、本発明を適用する電磁弁のステップ応答により電
磁弁の供給電源がオフからオンした時およびオンからオ
フした時における電磁弁出力が変化するのに必要な最小
時間（ｔｏｎ）および（ｔＯνν ）をそれぞれ求める
。First, the minimum time (ton) and (tOνν) required for the solenoid valve output to change when the power supply to the solenoid valve is turned on from off and from on to off due to the step response of the solenoid valve to which the present invention is applied Find each.
次に、低デユーティ比域を九は庫デユーティを
地域では、それぞれ前記最小時間（ｏｎ）ｔたは（′Ｏ
νν ）を一定に保持し九まま繰り返し波の周波数を減
少させ、ＰＷＭ信号の形成等の動作に影響を与えない範
囲で前記練り返し波の最小周波数を決定する。なお第６
図（＆）および第６図−）に示す時間幅ｔ、およびｔ、
はそれぞれ最を
小時間（０１）および（１ｏνν）に対応し、また周期
Ｔ、およびＴ、は前記最小周波数に対応するものである
。Next, in the low duty ratio region, the minimum time (on)t or ('O
ν) is kept constant and the frequency of the repetitive wave is decreased, and the minimum frequency of the repetitive wave is determined within a range that does not affect operations such as PWM signal formation. Furthermore, the 6th
The time width t and t shown in Figure (&) and Figure 6-),
correspond to the minimum times (01) and (1ovv), respectively, and the periods T and T correspond to the minimum frequency.
一方にニーティ比域における繰シ返し波の最大周波数線
、その周期Ｔ′が、次式、’［’ Ｗ ｔｏ、 ＋ ｌ
ｏ、。On the other hand, the maximum frequency line of the repetitive wave in the Neity ratio region and its period T' are expressed by the following formula, '[' W to, + l
o.
になるように決定する（第６図（ｄ）参照）。なお、を
時間（０１）と時間（１０νν）が等しいときは、デユ
ーティ比が０．５のとき最大周波数となる。(See FIG. 6(d)). Note that when time (01) and time (10νν) are equal, the maximum frequency is reached when the duty ratio is 0.5.
そして、デユーティ比が低デユーティ比から増加すると
１１まえは高デユーテイ比から減少するときには、最小
時間（ｔｏｎ）またはＭ／ｊ一時間（′。１ν）を一定
に保持したままＦｊｒ望のデユーディ比となるように繰
抄返し波の周波数を保々に増加する。Then, when the duty ratio increases from a low duty ratio and decreases from a high duty ratio, the minimum time (ton) or M/j one hour ('.1ν) is held constant and the duty ratio of Fjr and The frequency of the repetitive wave is continuously increased so that
＠５図のグツ７はこのようにして予め流量指令１！号の
信号値に対応して決定された所定の繰１返し波の周波数
を示している。この周波数を示す情報は、例えば流量指
令１！号の！号値をアドレスとしたＲＯＭ等に′記憶さ
れ、ｒｋ、１指令信号に応じて過室ｏｊＩｉ波数情報が
読み出される。In this way, the guts 7 in Figure @5 have the flow rate command 1 in advance! The frequency of a predetermined repetition wave determined in accordance with the signal value of the signal is shown. Information indicating this frequency is, for example, flow rate command 1! No.! The ojIi wave number information is stored in a ROM or the like with the signal value as an address, and the overroom ojIi wave number information is read out in response to the rk and 1 command signals.
そして、読み出畜れた周波数情報は、例えば所定の繰妙
返し波を屡成するための主発振器等を制御することによ
抄繰に返し波の周波数を制御する。Then, the read frequency information is used to control the frequency of the repetitive wave by controlling, for example, a main oscillator for generating a predetermined repetitive wave.
したがって、ＰＷＭ信号のデユーティ比が０．１の低デ
ユーティ比またはデユーティ比が０．９の高デユーテイ
比の場合でも、電磁弁は充分応答可能となり（第６図（
切および第６図（貝参照）、流量０または１００−近傍
における流量制御が可能になる（＠６図（ｃ）および藁
６図（１）参照）。Therefore, even when the PWM signal has a low duty ratio of 0.1 or a high duty ratio of 0.9, the solenoid valve can respond sufficiently (see Fig. 6).
Flow rate control in the vicinity of 0 or 100 is possible (see Figure 6 (c) and Figure 6 (1)).
また、ＰＷＭ信号のデユーティ比が０．５の中デユーテ
ィ比では、電磁弁の開閉周期が短かくな９（第６図（ｅ
）参照）、これによって流量変動を減少することができ
る（第６図（ｆ）参照）。すなわち、流量変動にともな
うアクチュエータの振動を防止することができる。In addition, when the duty ratio of the PWM signal is 0.5, the opening/closing period of the solenoid valve is short (Fig. 6(e)).
), thereby reducing the flow rate fluctuation (see FIG. 6(f)). That is, vibration of the actuator due to flow rate fluctuations can be prevented.
また、更に流量指令信号に対するデユーティ比を第７図
に示すように小ｆｔ量指令および大流量指令時にはデユ
ーティ比の変化率を大きくすることにより、低デユーテ
ィ比域および高デユーテイ比域における流量特性″必直
線性も教養できる。なお、＠７図に示すような流量指令
信号とデユーティ比との関係を得るためには、第７図に
示す曲線の傾きに対応するゲインとなるようにゲインを
変化する可変増幅器を介して流量指令信号を出力す為よ
うにすればよい。Furthermore, by increasing the rate of change of the duty ratio for the flow rate command signal at the time of a small ft amount command and a large flow rate command, as shown in Fig. 7, the flow rate characteristics in the low duty ratio region and the high duty ratio region. You can also learn about the necessary linearity.In order to obtain the relationship between the flow rate command signal and the duty ratio as shown in Figure 7, change the gain so that the gain corresponds to the slope of the curve shown in Figure 7. The flow rate command signal may be outputted via a variable amplifier.
以上説明したように本発明によれば、小流量、大流量の
流量制御ができ、かつ流を変動、油圧変動を低減するこ
とができ、これによ抄制御可能な流量範囲が広がり、か
つアクチュエータの振動を実用上全く問題にならない範
Ｈで低減させることができる。また、従来のＰＷＭ方式
で使用できなかった応答性の悪い電磁弁（例えば大流量
弁）が使用可能となり、ＰＷＭ比例弁としての流量特性
の直線性の向上も図ることができるＯAs explained above, according to the present invention, it is possible to control the flow rate of small flow rates and large flow rates, and also to fluctuate the flow and reduce oil pressure fluctuations. The vibration can be reduced to a range H that does not pose any problem in practice. In addition, it is now possible to use solenoid valves with poor response (for example, large flow valves) that could not be used with conventional PWM systems, and it is possible to improve the linearity of the flow characteristics as a PWM proportional valve.
ＷＪ１図はＰＷＭ方式を用いた電磁弁の駆動方法を説明
するために用いた波形図、第２図は電磁弁の概略図、第
３図ｉ従来のデユーティ比と流量との関係を示すグラフ
、第４図は従来のＰＷＭ信号、電磁弁の動き及び流量の
関係を示す波形図、第５図は本発明にかかわる所定の繰
り返し波の周波数と流量指令信号との関係を示すグラフ
、第６図は本発明にかかわるＰＷＭｍ号、電磁弁の１１
ｂ＠及び流１の関係を示す波形図、第７図は流１指冷信
号とデユーティ比との関係を示すグラフである。
１−電磁弁、２・・・ポンプ、ａ−・のこぎり波、ｂ・
・・流量指令信号。 ゛
ζ−τ
１５−五つ
（元−シｒＬｏ、５１
（も−シｒｌｌ：０９１
（１）府ｆ
第５図
第７図Figure WJ1 is a waveform diagram used to explain the driving method of a solenoid valve using the PWM method, Figure 2 is a schematic diagram of a solenoid valve, Figure 3 is a graph showing the relationship between conventional duty ratio and flow rate, Fig. 4 is a waveform diagram showing the relationship between the conventional PWM signal, the movement of the solenoid valve, and the flow rate; Fig. 5 is a graph showing the relationship between the frequency of the predetermined repetitive wave and the flow rate command signal according to the present invention; Fig. 6 is PWM m number 11 of the solenoid valve related to the present invention.
A waveform diagram showing the relationship between b@ and flow 1, and FIG. 7 is a graph showing the relationship between the flow 1 finger cooling signal and the duty ratio. 1-Solenoid valve, 2...Pump, a-.Sawtooth wave, b.
...Flow rate command signal.゛ζ-τ 15-five (original-shirLo, 51 (mo-shirll:091) (1)fu f Fig. 5 Fig. 7
Claims (1)
により該流−皺指令信号に対応するパルス幅変調信号を
形成し、該パルス幅ｆｖ！４便号を電磁弁の駆動信号と
して用いる電磁弁の駆動方法において、前記所定の繰り
返し波の周波数を内１１把流量指令信号の示す指令流量
に対応して変更することを特徴とする電磁弁の駆動方法
。 （２）流量指令信号を所定の繰シ返し波と比較すること
により該流ｉ指令信号に対応するパルス幅変調信号を形
成し、該パルス幅変調信号を電磁弁の駆動信号として用
いる′電磁弁の駆動方法において、前記所定の繰り返し
波の周波数を前記流量指令信号の示す指令流量に対応し
て変更するとと４に、前記パルス幅変＠信号のデユーテ
ィ比の変化率を前記指令流量に対応して変更することを
善黴とする電磁弁の駆動方法。[Claims] (υ By comparing the flow rate command signal with a predetermined repetitive wave, a pulse width modulation signal corresponding to the flow-wrinkle command signal is formed, and the pulse width fv!4 is applied to the solenoid valve. A method for driving a solenoid valve used as a drive signal, characterized in that the frequency of the predetermined repetitive wave is changed in accordance with a command flow rate indicated by an eleventh flow rate command signal. (2) Flow rate A method for driving a solenoid valve in which a pulse width modulation signal corresponding to the current i command signal is formed by comparing the command signal with a predetermined repetitive wave, and the pulse width modulation signal is used as a drive signal for the solenoid valve. , changing the frequency of the predetermined repetitive wave in response to the command flow rate indicated by the flow rate command signal; and 4) changing the rate of change in the duty ratio of the pulse width change @ signal in response to the command flow rate. A method of driving a solenoid valve that eliminates mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5629582A JPS58174773A (en) | 1982-04-05 | 1982-04-05 | Driving process of solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5629582A JPS58174773A (en) | 1982-04-05 | 1982-04-05 | Driving process of solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58174773A true JPS58174773A (en) | 1983-10-13 |
Family
ID=13023114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5629582A Pending JPS58174773A (en) | 1982-04-05 | 1982-04-05 | Driving process of solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58174773A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173376A (en) * | 1984-02-16 | 1985-09-06 | Sharp Corp | Discharge rate variable type solenoid-operated pump |
| JPS62165083A (en) * | 1986-01-14 | 1987-07-21 | Hitachi Constr Mach Co Ltd | Driving circuit for solenoid valve |
| JPS62188874A (en) * | 1986-02-12 | 1987-08-18 | Kubota Ltd | Proportional solenoid valve control circuit |
| US4749069A (en) * | 1985-10-03 | 1988-06-07 | Boge Gmbh | Vibration damper for motor vehicles having an arrangement for varying damping thereof |
| JPS63172075A (en) * | 1987-01-10 | 1988-07-15 | Daihatsu Motor Co Ltd | Oil pressure controlling method by solenoid valve |
| US4785920A (en) * | 1986-04-16 | 1988-11-22 | Boge Ag | Hydraulic adjustable shock absorber |
| JPH01131382A (en) * | 1987-11-16 | 1989-05-24 | Honda Motor Co Ltd | Deciding method for duty ratio for actuation of solenoid |
| EP0318505A1 (en) * | 1986-08-04 | 1989-06-07 | Mc Donnell Douglas Corp | Solenoid actuated pneumatic valve. |
| US4850460A (en) * | 1987-04-13 | 1989-07-25 | Boge Ag | Hydraulic adjustable shock absorber |
| EP0394216A2 (en) * | 1989-04-17 | 1990-10-24 | Robert Bosch Ag | Method for the control and regulation of a combustion engine |
| US5353770A (en) * | 1992-05-21 | 1994-10-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling flow of evaporated fuel from canister to intake passage of engine using purge control valves |
| US6792916B2 (en) | 2001-09-28 | 2004-09-21 | Isuzu Motors Limited | Control device of common rail fuel injection system of an engine |
| JP2005185491A (en) * | 2003-12-25 | 2005-07-14 | Sanyo Electric Co Ltd | Air massage apparatus |
| DE102008058720A1 (en) * | 2008-11-24 | 2010-05-27 | Mtu Friedrichshafen Gmbh | Control method for an internal combustion engine with a common rail system |
| CN104108387A (en) * | 2013-04-15 | 2014-10-22 | 株式会社万都 | Solenoid valve control apparatus and method |
-
1982
- 1982-04-05 JP JP5629582A patent/JPS58174773A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60173376A (en) * | 1984-02-16 | 1985-09-06 | Sharp Corp | Discharge rate variable type solenoid-operated pump |
| US4749069A (en) * | 1985-10-03 | 1988-06-07 | Boge Gmbh | Vibration damper for motor vehicles having an arrangement for varying damping thereof |
| JPS62165083A (en) * | 1986-01-14 | 1987-07-21 | Hitachi Constr Mach Co Ltd | Driving circuit for solenoid valve |
| JPS62188874A (en) * | 1986-02-12 | 1987-08-18 | Kubota Ltd | Proportional solenoid valve control circuit |
| JPH0371591B2 (en) * | 1986-02-12 | 1991-11-13 | Kubota Kk | |
| US4785920A (en) * | 1986-04-16 | 1988-11-22 | Boge Ag | Hydraulic adjustable shock absorber |
| EP0318505A1 (en) * | 1986-08-04 | 1989-06-07 | Mc Donnell Douglas Corp | Solenoid actuated pneumatic valve. |
| JPS63172075A (en) * | 1987-01-10 | 1988-07-15 | Daihatsu Motor Co Ltd | Oil pressure controlling method by solenoid valve |
| US4850460A (en) * | 1987-04-13 | 1989-07-25 | Boge Ag | Hydraulic adjustable shock absorber |
| US4951468A (en) * | 1987-11-16 | 1990-08-28 | Honda Giken Kogyo Kabushiki Kaisha | Method of determining duty ratio used for operational control of a solenoid |
| JPH01131382A (en) * | 1987-11-16 | 1989-05-24 | Honda Motor Co Ltd | Deciding method for duty ratio for actuation of solenoid |
| EP0394216A2 (en) * | 1989-04-17 | 1990-10-24 | Robert Bosch Ag | Method for the control and regulation of a combustion engine |
| US5353770A (en) * | 1992-05-21 | 1994-10-11 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling flow of evaporated fuel from canister to intake passage of engine using purge control valves |
| US6792916B2 (en) | 2001-09-28 | 2004-09-21 | Isuzu Motors Limited | Control device of common rail fuel injection system of an engine |
| JP2005185491A (en) * | 2003-12-25 | 2005-07-14 | Sanyo Electric Co Ltd | Air massage apparatus |
| DE102008058720A1 (en) * | 2008-11-24 | 2010-05-27 | Mtu Friedrichshafen Gmbh | Control method for an internal combustion engine with a common rail system |
| US8844501B2 (en) | 2008-11-24 | 2014-09-30 | Mtu Friedrichshafen Gmbh | Control and regulation method for an internal combustion engine having a common rail system |
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