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DE3729183A1 - Circuit for operating a magnetically actuated valve - Google Patents

Circuit for operating a magnetically actuated valve

Info

Publication number
DE3729183A1
DE3729183A1 DE19873729183 DE3729183A DE3729183A1 DE 3729183 A1 DE3729183 A1 DE 3729183A1 DE 19873729183 DE19873729183 DE 19873729183 DE 3729183 A DE3729183 A DE 3729183A DE 3729183 A1 DE3729183 A1 DE 3729183A1
Authority
DE
Germany
Prior art keywords
valve
temperature
pulse duration
circuit according
pulse
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
Application number
DE19873729183
Other languages
German (de)
Other versions
DE3729183C2 (en
Inventor
Reiner Dipl Ing Bartholomaeus
Rolf Dr Ing Neuhaus
Konrad Schreier
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.)
Bosch Rexroth AG
Original Assignee
Mannesmann Rexroth AG
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 Mannesmann Rexroth AG filed Critical Mannesmann Rexroth AG
Priority to DE3729183A priority Critical patent/DE3729183C2/en
Publication of DE3729183A1 publication Critical patent/DE3729183A1/en
Application granted granted Critical
Publication of DE3729183C2 publication Critical patent/DE3729183C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3655—Continuously controlled electromagnetic valves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

A pilot valve is digitally controlled by pulses of constant frequency, while the duty factor determines the opening or closing times of the pilot valve. In addition, the pulse duration is changed as a function of the operating temperature of the valve, so that even very extreme fluctuations in the temperature of the valve are compensated and the proportional control behaviour of the pilot valve is improved considerably.

Description

Die Erfindung betrifft eine Schaltung zum Betrieb eines magnetisch betätigten Ventils gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a circuit for operating a magnetically operated valve according to the preamble of Claim 1.

Die Schaltung gemäß dem Oberbegriff des Patentanspruchs 1 entspricht der in der Patentanmeldung P 37 11 961 mit dem Anmeldetag vom 9.4.1987 erläuterten Schaltung.The circuit according to the preamble of claim 1 corresponds to that in patent application P 37 11 961 with the Filing date of April 9, 1987 explained circuit.

Die Speisung der Magnetspule mit Impulszügen hat den Vor­ teil, daß an Stelle eines Proportionalventils ein Schalt­ ventil Verwendung finden kann, das somit digital angesteuert wird, wobei sich eine lineare Abhängigkeit zwischen dem Steuerstrom und der Ausgangsgröße des Ventils, beispielswei­ se eines gesteuerten Druckes oder Durchflusses, ergibt. Es kann sich dabei um ein Schaltventil handeln, dessen Ven­ tilelement als Kugel ausgebildet ist, die mit einem Ventil­ sitz zusammenwirkt, um entsprechend dem Verhältnis zwischen Impulsdauer und Pause die Verbindung zwischen einem Arbeits­ anschluß und einem Anschluß zu einer Druckmittelquelle her­ zustellen oder abzusperren. Das Ventilelement kann aber auch ausgehend von einer Mittelstellung in zwei Endstellun­ gen umgeschaltet werden, wobei der Arbeitsanschluß wahlweise mit einer Druckmittelquelle oder mit einem Tank verbindbar ist. Durch die Wahl des Tastgrades der Impulszüge bei konstanter Frequenz läßt sich ein einem Proportionalventil entsprechendes Verhalten des Schaltventils erzielen.The supply of the magnetic coil with pulse trains has the advantage part that a switch instead of a proportional valve valve can be used, which is therefore digitally controlled with a linear dependency between the Control current and the output variable of the valve, for example a controlled pressure or flow. It can be a switching valve, the Ven tilelement is designed as a ball with a valve seat cooperates to according to the relationship between Pulse duration and pause the connection between a work Connection and a connection to a pressure medium source deliver or cordon off. The valve element can also starting from a middle position in two end positions gen can be switched, with the working connection optional connectable to a pressure medium source or to a tank is. By choosing the duty cycle of the pulse trains at constant frequency can be a proportional valve achieve the corresponding behavior of the switching valve.

Bei einem Regelverstärker zum Ansteuern eines Proportional­ ventils mit Gleichstrom ist es bekannt (Herion-Informationen 20. Jahrgang 1981, Heft 1, S. 15), den Strom in der Magnet­ spule zu messen, damit die durch den Temperaturgang ent­ stehende Widerstandsdrift der Magnetspulenwicklung zu erfas­ sen und durch den Regelverstärker zu kompensieren, so daß die eingestellte hydraulische Größe konstant gehalten werden kann.With a control amplifier to control a proportional valves with direct current is known (Herion information 20th year 1981, volume 1, p. 15), the current in the magnet to measure the coil so that the ent  standing resistance drift of the magnet coil winding sen and compensate by the control amplifier, so that the set hydraulic quantity can be kept constant can.

Es ist ferner bekannt (DE-PS 33 20 110), ein temperaturun­ abhängiges Verhalten von Magnetregelventilen mit Regelver­ stärker zur Speisung der Magnetspule mit Impulsen dadurch zu erzielen, daß die Impulsfrequenz temperaturabhängig der­ art verändert wird, daß die Impulsfrequenz mit fallender Temperatur verkleinert und mit steigender Temperatur erhöht wird. Dabei wird automatisch die Impulsbreite bei einer Frequenzänderung nachgeregelt, so daß das Tastverhältnis Impulsbreite zu Periode konstant gehalten wird. Ebenso bleibt auch der Strommittelwert konstant, um das gewünschte Proportionalverhalten zu ermöglichen.It is also known (DE-PS 33 20 110), a Temperaturun dependent behavior of solenoid control valves with control ver stronger for supplying the magnetic coil with pulses to achieve that the pulse frequency depends on the temperature art is changed that the pulse frequency with falling Reduced temperature and increased with increasing temperature becomes. The pulse width at a Frequency change adjusted so that the duty cycle Pulse width is kept constant over the period. As well the average current value also remains constant around the desired one To enable proportional behavior.

Der Erfindung liegt die Aufgabe zugrunde, die Schaltung der eingangs genannten Art so auszubilden, daß auch bei extre­ men Temperaturschwankungen das gewünschte Regelverhalten gewährleistet ist. Die Aufgabe wird durch die im kennzeich­ nenden Teil des Patentanspruchs 1 angegebenen Merkmale ge­ löst.The invention has for its object the circuit of the type mentioned in such a way that even with extre temperature fluctuations the desired control behavior is guaranteed. The task is characterized by the in ning part of claim 1 specified features ge solves.

Erfindungsgemäß wird bei konstanter Ansteuerfrequenz die Impulsbreite unmittelbar temperaturabhängig gesteuert. Bei fallender Temperatur erfolgt eine Erhöhung der Impuls­ dauer und bei steigender Temperatur erfolgt eine Verringerung der Impulsdauer, wobei die Frequenz stets gleich und konstant ist. Die Schaltung eignet sich vorzugsweise für digital betriebene Ventile, insbesondere Schaltventile, die durch Impulsbreitenansteuerung bei konstanter Frequenz ein proportionales Regelverhalten aufweisen. Der Aufbau solcher Ventile ist beispielsweise aus der DE-OS 34 12 351 und der DE-OS 37 11 961 erkennbar. According to the invention, the constant drive frequency Pulse width controlled directly depending on the temperature. As the temperature drops, the pulse increases duration and with increasing temperature there is a reduction the pulse duration, the frequency always the same and constant is. The circuit is preferably suitable for digital operated valves, in particular switching valves, which by Pulse width control at a constant frequency have proportional control behavior. The structure of such Valves is for example from DE-OS 34 12 351 and the DE-OS 37 11 961 recognizable.  

Bei dem Ventil gemäß der DE-OS 34 12 351 handelt es sich um ein Magnetventil zum Regeln des Bremsdruckes. Solche Ventile sollen insbesondere bei sehr niedrigen Temperaturen zuver­ lässig arbeiten. Es zeigt sich, daß bei einer entsprechend verlängerten Impulsdauer bei sehr tiefen Temperaturen der durch digitale Ansteuerung des Ventils erzeugte Bremsdruck präzise einstellbar ist. Bei höheren Temperaturen muß die Impulsdauer entsprechend verringert werden.The valve according to DE-OS 34 12 351 is a solenoid valve for regulating the brake pressure. Such valves should especially verver at very low temperatures work casually. It turns out that at a corresponding prolonged pulse duration at very low temperatures Brake pressure generated by digital control of the valve is precisely adjustable. At higher temperatures the Pulse duration can be reduced accordingly.

Erschwerend kommt hinzu, daß derartige digital angesteuerte Ventile sehr temperaturabhängig arbeiten. Die erfindungsge­ mäße temperaturgeführte Impulsdauersteuerung läßt erst die Verwendung solcher Ventile zur Druck- oder Wegregelung zu, wobei auf zusätzliche Druck- oder Wegsensoren zur Temperatur­ kompensation verzichtet werden kann.To make matters worse, such digitally controlled Valves work very temperature-dependent. The fiction moderate temperature-controlled pulse duration control only allows Use of such valves for pressure or displacement control, being on additional pressure or displacement sensors for temperature compensation can be dispensed with.

Ferner bleibt das proportionale Regelverhalten der Ventile erhalten, auch wenn bei niedriger Temperatur die Impulsdauer vergrößert wird, weil infolge der durch die Temperatur bedingten Viskosität des Strömungsmittels ein entsprechend verringerter Durchfluß erfolgt, wenn während der verlänger­ ten Impulsdauer das Ventil öffnet.The proportional control behavior of the valves also remains received, even if the pulse duration at low temperature is enlarged because of the temperature conditional viscosity of the fluid accordingly reduced flow occurs when during the lengthening valve opens.

Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Advantageous developments of the invention are in the Subclaims marked.

Ein Ausführungsbeispiel der Erfindung ist nachstehend an­ hand der Zeichnung näher erläutert. Es zeigtAn embodiment of the invention is below hand of the drawing explained in more detail. It shows

Fig. 1 eine Schaltung zum Betrieb eines magnetisch betätigten Schaltventils und Fig. 1 shows a circuit for operating a magnetically operated switching valve and

Fig. 2 mehrere von einem Verstärker abgegebene Impulse, deren Dauer temperaturabhängig unterschiedlich ist. Fig. 2 several pulses emitted by an amplifier, the duration of which differs depending on the temperature.

In Fig. 1 ist ein Kugelschaltventil 1 dargestellt. Ein kugel­ förmiges Ventilelement 2 wird von einer Feder 3 auf einen Ventilsitz 4 gedrückt. Fließt in der Magnetwicklung 5 ein Strom, so wird die Kugel 2 entgegen der Federkraft angezo­ gen und gegen einen Ventilsitz 6 angedrückt. Damit kann ein zu einem Verbraucher A führender Anschluß 7, der in den Feder­ raum 8 zwischen der Kugel 2 und dem Ventilsitz 6 mündet wahl­ weise je nach Schaltstellung der Kugel 2 über einen Kanal 9 mit einer Druckmittelwelle P oder einen Kanal 10 mit einem Tank T verbunden werden.In Fig. 1, a ball switching valve 1 is shown. A spherical valve element 2 is pressed by a spring 3 onto a valve seat 4 . If a current flows in the magnetic winding 5 , the ball 2 is pulled against the spring force and pressed against a valve seat 6 . Thus, a leading to a consumer A connection 7 , which opens into the spring space 8 between the ball 2 and the valve seat 6 , depending on the switching position of the ball 2 via a channel 9 with a pressure medium shaft P or a channel 10 with a tank T. get connected.

Das Schaltventil 1 wird digital mit Impulszügen angesteuert. Hierzu dient ein Verstärker 12, insbesondere ein bekannter sogenannter Chopper-Verstärker. Der Verstärker 12 besteht im wesentlichen aus einem Differenzglied 14 und einem Im­ pulsgenerator 15 der von einem Oszillator 16 angesteuert wird. Dem Differenzglied 14 wird einerseits ein Sollwert U soll für eine gewünschte Ausgangsgröße des Ventils 1 zu­ geführt, sowie ein die Ausgangsgröße darstellendes Signal U ist, das in einem Wandler 18 beispielsweise einem Druck oder Durchflußwandler erzeugt wird. In dem Verknüpfungsglied 14 wird als Differenz eine Regelgröße gebildet, die dem Impulsgenerator 15 zugeführt wird. Der Impulsgenerator 15 wandelt die Regelgröße in ein Ansteuersignal um, das schematisch in Fig. 2 gezeigt ist. Es weist unterschiedliche Tastgrade auf, während die mit T bezeichnete Periode konstant gehalten wird. Die Frequenz f=1/T wird entsprechend den Ventileigenschaften so festgelegt, daß bei jedem Impuls das Ventil in die andere Schaltstellung umgeschaltet wird. Entsprechend der Impulsdauer bleibt dann die Verbindung zwischen dem Kanal 7 und dem Kanal 10 offen und kann der Druck bzw. Durchfluß geregelt werden.The switching valve 1 is controlled digitally with pulse trains. An amplifier 12 serves this purpose, in particular a known chopper amplifier. The amplifier 12 consists essentially of a differential element 14 and a pulse generator 15 which is controlled by an oscillator 16 . On the one hand, the differential element 14 is supplied with a desired value U soll for a desired output variable of the valve 1 , and a signal U representing the output variable is generated in a converter 18, for example a pressure or flow converter. A control variable is formed as a difference in the logic element 14 and is supplied to the pulse generator 15 . The pulse generator 15 converts the controlled variable into a control signal, which is shown schematically in FIG. 2. It has different duty cycles, while the period labeled T is kept constant. The frequency f = 1 / T is determined according to the valve properties so that the valve is switched to the other switching position with each pulse. Depending on the pulse duration, the connection between channel 7 and channel 10 then remains open and the pressure or flow can be regulated.

Zur Temperaturkompensation wird der in der Magnetspule 5 fließende Spulenstrom an einem Meßwiderstand 20 abgenommen. Der Spulenstrom ist ein Maß für die Betriebstemperatur des Ventils, insbesondere der Temperatur des Strömungsmittels. Der Spulenstrom wird einem Impulsbreitenregler 22 zugeführt, der zur Ansteuerung des Impulsgenerators 15 vorgesehen ist. In dem Impulsbreitenregler 22 erfolgt die Zuordnung der Temperaturen zu dem im Meßwiderstand 20 gemessenen Spulen­ strom und wird ein Steuersignal erzeugt, das temperaturab­ hängig die Impulsbreite der vom Impulsgenerator 15 erzeugten Impulse entsprechend verändert. Wie aus Fig. 2 erkennbar ist, bleibt die Frequenz der Impulse konstant, die Impulsdauer wird jedoch mit sinkender Temperatur verlängert (gestrichelt).For temperature compensation, the coil current flowing in the magnet coil 5 is taken from a measuring resistor 20 . The coil current is a measure of the operating temperature of the valve, in particular the temperature of the fluid. The coil current is fed to a pulse width controller 22 , which is provided for driving the pulse generator 15 . In the pulse width controller 22 , the temperatures are assigned to the coils measured in the measuring resistor 20 and a control signal is generated which changes the pulse width of the pulses generated by the pulse generator 15 as a function of temperature. As can be seen from FIG. 2, the frequency of the pulses remains constant, but the pulse duration is extended (broken line) with falling temperature.

Die Verlängerung der Impulsdauer kann mit der Temperatur entsprechend einer vorbestimmten Funktion, insbesondere linear erfolgen. Dies bestimmt sich im wesentlichen nach dem Regelverhalten des Ventils. Die Veränderung der Impuls­ dauer kann gegebenenfalls auch nichtlinear vorgenommen wer­ den.The pulse duration can be extended with temperature according to a predetermined function, in particular be linear. This is essentially determined by the control behavior of the valve. The change in impulse if necessary, duration can also be made non-linear the.

Außerdem kann zur Rückführung des Istwerts auf die Differenzstufe 14 auch der im Meßwiderstand 20 ermittelte Spulenstrom herangezogen werden.In addition, the coil current determined in the measuring resistor 20 can also be used to return the actual value to the differential stage 14 .

Gegebenenfalls kann die Rückführung auch entfallen und der Impulsgenerator 15 allein mit dem Sollwertsignal gespeist werden.If necessary, the feedback can also be omitted and the pulse generator 15 can be supplied solely with the setpoint signal.

Das Schaltventil 1 ist lediglich als Beispiel angegeben worden. Das Ventil 1 kann beispielsweise auch durch ein Bremsdruckregelventil ersetzt werden, bei dem ein der Kugel 2 entsprechendes Ventilglied vorgesehen ist (DE-OS 34 12 351), das in einer definierten Mittelstellung beide zum Tank T und der Druckmittelquelle P führende Kanäle geschlossen hält. Diese Mittelstellung des Ventilgliedes wird dadurch erreicht, daß der Magnetwicklung des Ventils ein Dauerstrom bestimmter Amplitude zugeführt wird. Soll dann der zum Bremsdruckzylinder führende Arbeitsanschluß mit der Druck­ mittelquelle oder dem Tank verbunden werden, um den Druck zu regeln, so werden der Magnetwicklung entweder positive Impulse oder umgekehrte Impulse zugeführt, so daß das Ventilglied in die eine oder andere Schaltstellung gelangen kann.The switching valve 1 has only been given as an example. The valve 1 can, for example, also be replaced by a brake pressure control valve, in which a valve member corresponding to the ball 2 is provided (DE-OS 34 12 351), which keeps both channels leading to the tank T and the pressure medium source P closed in a defined central position. This central position of the valve member is achieved in that a permanent current of a certain amplitude is supplied to the magnetic winding of the valve. If the working connection leading to the brake pressure cylinder is to be connected to the pressure medium source or the tank in order to regulate the pressure, then either positive pulses or reverse pulses are supplied to the magnet winding, so that the valve member can reach one or the other switching position.

Claims (7)

1. Schaltung zum Betrieb eines magnetisch betätigten Ventils mit einem Verstärker zur Speisung der Magnetwicklung mit Impulsen, wobei die Impulsfrequenz konstant und so gewählt ist, daß das Ventilelement bei jedem Impuls in eine den Durchfluß eines Strömungsmittels öffnende oder sperrende Stellung gelangt und wobei die Impulsdauer das Durchflußvolumen bestimmt, dadurch gekennzeichnet, daß bei konstanter Impulsfrequenz die Impulsdauer temperatur­ abhängig derart verändert wird, daß die Impulsdauer mit fallender Temperatur erhöht und mit steigender Temperatur verringert wird.1. Circuit for operating a magnetically actuated valve with an amplifier for supplying the magnetic winding with pulses, the pulse frequency being constant and chosen so that the valve element arrives in a position opening or blocking the flow of a fluid with each pulse, and the pulse duration Flow volume determined, characterized in that at a constant pulse frequency, the pulse duration is changed depending on the temperature in such a way that the pulse duration increases with falling temperature and decreases with increasing temperature. 2. Schaltung nach Anspruch 1, dadurch gekennzeichnet, daß das Signal zur temperaturabhängigen Impulsdaueränderung aus dem Spulenstrom gebildet wird, indem zur Temperatur­ messung des Ventils der Widerstand der Magnetwicklung verwendet wird.2. Circuit according to claim 1, characterized in that the signal for the temperature-dependent change in pulse duration is formed from the coil current by going to temperature measurement of the valve the resistance of the magnetic winding is used. 3. Schaltung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Impulsdauer mit der Temperatur entsprechend einer vorbestimmten Funktion verändert wird.3. Circuit according to claim 1 or 2, characterized in that that the pulse duration corresponds with the temperature a predetermined function is changed. 4. Schaltung nach Anspruch 3, dadurch gekennzeichnet, daß die Impulsdauer linear mit der Temperatur verändert wird.4. A circuit according to claim 3, characterized in that the pulse duration changes linearly with temperature becomes. 5. Schaltung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß in dem Verstärker aus einem Soll­ wert und einer als Istwert rückgeführten Größe eine die Impulsdauer bestimmende Regelgröße gebildet wird, die zusätzlich temperaturabhängig veränderbar ist. 5. Circuit according to one of claims 1 to 4, characterized characterized in that in the amplifier from a target value and a value returned as an actual value the control variable determining the pulse duration is formed, which can also be changed depending on the temperature.   6. Schaltung nach einem der Ansprüche 1 bis 5, dadurch ge­ kennzeichnet, daß das anzusteuernde Ventil ein 2/2- oder 3/2-Schaltventil mit einem proportionalen Regelverhalten ist.6. Circuit according to one of claims 1 to 5, characterized ge indicates that the valve to be controlled is a 2 / 2- or 3/2 switching valve with proportional control behavior is. 7. Schaltung nach Anspruch 6, dadurch gekennzeichnet, daß das Ventil ein Druckregelventil ist, dessen Ventilglied in einer Mittelstellung den druckgeregelten Anschluß gegenüber einer Druckmittelquelle und einem Tank absperrt und in einer ersten Endstellung den druckgeregelten An­ schluß mit der Druckmittelquelle und in der anderen zwei­ ten Endstellung den druckgeregelten Anschluß mit dem Tank verbindet, wobei die Mittelstellung durch einen der Magnetwicklung zuführbaren Dauerstrom einstellbar ist und die Umschaltung auf die jeweiligen Endstellungen durch entgegengerichtete Impulse erfolgt.7. Circuit according to claim 6, characterized in that the valve is a pressure control valve, the valve member in a middle position the pressure-controlled connection shut off from a pressure medium source and a tank and in a first end position the pressure-controlled on stop with the pressure medium source and in the other two end position, the pressure-controlled connection to the tank connects, the middle position by one of the Magnetic winding feedable continuous current is adjustable and switching to the respective end positions by opposite impulses.
DE3729183A 1987-09-01 1987-09-01 Circuit for operating a solenoid operated valve Expired - Fee Related DE3729183C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3729183A DE3729183C2 (en) 1987-09-01 1987-09-01 Circuit for operating a solenoid operated valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3729183A DE3729183C2 (en) 1987-09-01 1987-09-01 Circuit for operating a solenoid operated valve

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DE3729183A1 true DE3729183A1 (en) 1989-03-09
DE3729183C2 DE3729183C2 (en) 1994-11-10

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936356A1 (en) * 1988-11-04 1990-05-10 Diesel Kiki Co LEAF CELL COMPRESSOR WITH VARIABLE FLOW RATE
DE3908859A1 (en) * 1989-03-17 1990-09-20 Rexroth Mannesmann Gmbh Ball switching valve, in particular for chopper operation
EP0460815A2 (en) * 1990-06-08 1991-12-11 Borg-Warner Automotive, Inc. Pulse width modulated pressure control valve configuration
DE4125640A1 (en) * 1990-09-27 1992-04-02 Zexel Corp COMPRESSOR WITH FLOW RATE CONTROL BY AN ELECTROMAGNETIC VALVE
DE4122376A1 (en) * 1991-07-05 1993-01-07 Rexroth Mannesmann Gmbh Operating three=way magnetic regulating valve - supplying pulses or DC with superimposed chopper signal to coil and adjusting frequency to minimise energy loss
DE4331203A1 (en) * 1993-09-14 1995-03-16 Hoefelmayr Bio Melktech Method and device for taking a quantity-proportional analysis sample from a milking flow
DE9420064U1 (en) * 1994-12-15 1995-04-06 Anton Ellinghaus Maschinenfabrik Und Apparatebauanstalt Gmbh & Co Kg, 59269 Beckum Tanker vehicle with sampler
EP0685780A1 (en) * 1994-06-03 1995-12-06 Festo KG Regulating device for controlling the pressure in a pressure-driven apparatus
EP0698538A3 (en) * 1994-08-26 1996-04-24 Nippon Denso Co Automotive brake fluid pressure control apparatus
DE19538899A1 (en) * 1995-10-19 1997-04-24 Rexroth Mannesmann Gmbh Cooler fan hydrostatic drive e.g. for diesel engine of heavy goods vehicle
WO1997029001A1 (en) * 1996-02-06 1997-08-14 Robert Bosch Gmbh Process and device for controlling a vehicle braking system
WO1997028999A1 (en) * 1996-02-07 1997-08-14 Robert Bosch Gmbh Electromagnetically actuated valve, especially for hydraulic motor vehicle braking systems
DE19908899A1 (en) * 1998-12-03 2000-06-08 Continental Teves Ag & Co Ohg Electromagnetic valve e.g. for hydraulic system or camshaft control of i.c. engine has valve control circuit providing damping current for damping impact between valve armature and end stop
DE19801990C2 (en) * 1997-01-20 2000-11-02 Jatco Corp Method and device for controlling a switching ratio solenoid valve
DE19963153A1 (en) * 1999-12-24 2001-07-05 Daimler Chrysler Ag Method for operating a fuel injection system with a pressure regulator valve and an injection valve uses a proportional magnetic valve to control pressure in a vehicle's fuel supply by triggering two constant triggering frequencies.
WO2001065076A1 (en) * 2000-03-02 2001-09-07 Siemens Aktiengesellschaft Method for controlling an actuator, using a retaining mark space ratio
EP1055576A3 (en) * 1999-05-22 2002-07-10 Robert Bosch Gmbh Electro-hydraulic braking system and control method therefor
WO2003074338A1 (en) * 2002-03-01 2003-09-12 Continental Teves Ag & Co. Ohg Method and circuit system for calibrating voltage and temperature deviations of the effective current of hydraulic valves in a pwm drive

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DE3936356A1 (en) * 1988-11-04 1990-05-10 Diesel Kiki Co LEAF CELL COMPRESSOR WITH VARIABLE FLOW RATE
DE3908859A1 (en) * 1989-03-17 1990-09-20 Rexroth Mannesmann Gmbh Ball switching valve, in particular for chopper operation
EP0460815A2 (en) * 1990-06-08 1991-12-11 Borg-Warner Automotive, Inc. Pulse width modulated pressure control valve configuration
EP0460815A3 (en) * 1990-06-08 1992-05-06 Borg-Warner Automotive, Inc. Pulse width modulated pressure control valve configuration
DE4125640A1 (en) * 1990-09-27 1992-04-02 Zexel Corp COMPRESSOR WITH FLOW RATE CONTROL BY AN ELECTROMAGNETIC VALVE
DE4122376A1 (en) * 1991-07-05 1993-01-07 Rexroth Mannesmann Gmbh Operating three=way magnetic regulating valve - supplying pulses or DC with superimposed chopper signal to coil and adjusting frequency to minimise energy loss
US5645012A (en) * 1993-09-14 1997-07-08 Bio-Melktechnik Hoefelmayr & Co. Method for extracting from a milking flow an analysis sample having a proportional amount
DE4331203A1 (en) * 1993-09-14 1995-03-16 Hoefelmayr Bio Melktech Method and device for taking a quantity-proportional analysis sample from a milking flow
US5746153A (en) * 1993-09-14 1998-05-05 Bio-Melktechnik Hoefelmayer & Co. Device for extracting from a milking flow an analysis sample having a proportional amount
EP0685780A1 (en) * 1994-06-03 1995-12-06 Festo KG Regulating device for controlling the pressure in a pressure-driven apparatus
EP0698538A3 (en) * 1994-08-26 1996-04-24 Nippon Denso Co Automotive brake fluid pressure control apparatus
US5584543A (en) * 1994-08-26 1996-12-17 Nippondenso Co., Ltd. Automotive brake fluid pressure control apparatus
DE9420064U1 (en) * 1994-12-15 1995-04-06 Anton Ellinghaus Maschinenfabrik Und Apparatebauanstalt Gmbh & Co Kg, 59269 Beckum Tanker vehicle with sampler
DE19538899A1 (en) * 1995-10-19 1997-04-24 Rexroth Mannesmann Gmbh Cooler fan hydrostatic drive e.g. for diesel engine of heavy goods vehicle
WO1997029001A1 (en) * 1996-02-06 1997-08-14 Robert Bosch Gmbh Process and device for controlling a vehicle braking system
CN1100688C (en) * 1996-02-06 2003-02-05 罗伯特·博施有限公司 Process and device for controlling vehicle braking system
WO1997028999A1 (en) * 1996-02-07 1997-08-14 Robert Bosch Gmbh Electromagnetically actuated valve, especially for hydraulic motor vehicle braking systems
DE19801990C2 (en) * 1997-01-20 2000-11-02 Jatco Corp Method and device for controlling a switching ratio solenoid valve
DE19908899A1 (en) * 1998-12-03 2000-06-08 Continental Teves Ag & Co Ohg Electromagnetic valve e.g. for hydraulic system or camshaft control of i.c. engine has valve control circuit providing damping current for damping impact between valve armature and end stop
DE19908899B4 (en) * 1998-12-03 2007-09-13 Continental Teves Ag & Co. Ohg Solenoid valve
EP1055576A3 (en) * 1999-05-22 2002-07-10 Robert Bosch Gmbh Electro-hydraulic braking system and control method therefor
DE19963153A1 (en) * 1999-12-24 2001-07-05 Daimler Chrysler Ag Method for operating a fuel injection system with a pressure regulator valve and an injection valve uses a proportional magnetic valve to control pressure in a vehicle's fuel supply by triggering two constant triggering frequencies.
DE19963153B4 (en) * 1999-12-24 2005-01-05 Conti Temic Microelectronic Gmbh Method for operating a system
WO2001065076A1 (en) * 2000-03-02 2001-09-07 Siemens Aktiengesellschaft Method for controlling an actuator, using a retaining mark space ratio
US7237516B2 (en) 2000-03-02 2007-07-03 Siemens Aktiengesellshaft Method for controlling an actuator, using a retaining mark space ratio
WO2003074338A1 (en) * 2002-03-01 2003-09-12 Continental Teves Ag & Co. Ohg Method and circuit system for calibrating voltage and temperature deviations of the effective current of hydraulic valves in a pwm drive
US7784881B2 (en) 2002-03-01 2010-08-31 Continental Teves Ag & Co. Ohg Method and circuit system for calibrating voltage and temperature deviations of the effective current of hydraulic valves in a PWM drive

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