DE102005013136A1 - Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation - Google Patents

Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation Download PDF

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Publication number
DE102005013136A1
DE102005013136A1 DE200510013136 DE102005013136A DE102005013136A1 DE 102005013136 A1 DE102005013136 A1 DE 102005013136A1 DE 200510013136 DE200510013136 DE 200510013136 DE 102005013136 A DE102005013136 A DE 102005013136A DE 102005013136 A1 DE102005013136 A1 DE 102005013136A1
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DE
Germany
Prior art keywords
pulse width
width modulation
pressure regulator
frequency
controlling
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.)
Withdrawn
Application number
DE200510013136
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German (de)
Inventor
Anton Dr. Fritzer
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ZF Friedrichshafen AG
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ZF Friedrichshafen AG
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Publication date
Application filed by ZF Friedrichshafen AG filed Critical ZF Friedrichshafen AG
Priority to DE200510013136 priority Critical patent/DE102005013136A1/en
Priority to PCT/EP2006/002388 priority patent/WO2006099983A1/en
Publication of DE102005013136A1 publication Critical patent/DE102005013136A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
    • F16H2061/0255—Solenoid valve using PWM or duty-cycle control

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

Es wird ein Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation vorgeschlagen, im Rahmen dessen die Pulsweitenmodulations-Frequenz in Stufen verändert wird, wobei die möglichen Frequenzwerte in einem derartigen Verhältnis zueinander stehen, dass eine feste Phasenbeziehung aller Frequenzen untereinander gegegeben ist, so dass eine phasenverschobene Ansteuerung mehrerer Druckregler über eine variable Pulsweitenmodulations-Frequenz ermöglicht wird.A method is proposed for controlling at least one electromagnetic pressure controller via a pulse width modulation, in which the pulse width modulation frequency is changed in stages, the possible frequency values being in such a relationship to one another that a fixed phase relationship of all frequencies is given to one another a phase-shifted control of several pressure regulators over a variable pulse width modulation frequency is made possible.

Description

Die vorliegende Erfindung betrifft ein Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation gemäß dem Oberbegriff des Patentanspruchs 1.The The present invention relates to a method for driving at least an electromagnetic pressure regulator via a pulse width modulation according to the generic term of claim 1

Aus dem Stand der Technik ist bekannt, elektromagnetische Druckregler zur Steuerung von Ventilen einzusetzen, beispielsweise zur Steuerung von Ventilen von Schaltelementen eines Automatgetriebes.Out The prior art is known, electromagnetic pressure regulator to use for controlling valves, for example, for control of valves of switching elements of an automatic transmission.

Derartige Druckregler werden im Allgemeinen mittels Pulsweitenmodulation im Strom angesteuert, wobei hierfür eine konstante Pulsweitenmodulations-Frequenz gewählt wird, die beispielsweise in der Größenordnung von 1000 Hz liegt. Wenn mehrere Druckregler anzusteuern sind, werden die Druckregler phasenverschoben angesteuert, damit die Einschaltflanke des Stroms nicht gleichzeitig erfolgt, um auf diese Weise die elektromagnetische Verträglichkeit nicht negativ zu beeinflussen. Dieser Phasenversatz ist bei konstanter und gleicher Frequenz für alle Druckregler einfach zu realisieren.such Pressure regulators are generally used by means of pulse width modulation in the Power controlled, for this purpose a constant pulse width modulation frequency is selected, for example, in the order of magnitude of 1000 Hz. If several pressure regulators are to be controlled, become the pressure controller phase-shifted controlled so that the switch-on the current is not carried out simultaneously, thus ensuring electromagnetic compatibility not to adversely affect. This phase shift is at a constant and same frequency for All pressure regulators easy to implement.

Aus dem Stand der Technik ist bekannt, eine variable Pulsweitenmodulations-Frequenz zu wählen, wodurch die Hysterese der Druckregler verbessert wird. Hierbei wird die Frequenz in Abhängigkeit von der Öltemperatur und vom Arbeitspunkt (Druck) des Druckreglers gewählt und liegt im Intervall zwischen 200 Hz und 1000 Hz. Damit sind bei mehreren Druckreglern unterschiedliche Frequenzen erforderlich, was in nachteiliger Weise darin resultiert, dass eine feste Phasenbeziehung nicht realisierbar ist.Out The prior art discloses a variable pulse width modulation frequency to choose, whereby the hysteresis of the pressure regulator is improved. This is the frequency depending on the oil temperature and selected from the operating point (pressure) of the pressure regulator and is in the interval between 200 Hz and 1000 Hz. Thus, with several pressure regulators different frequencies required, which is disadvantageous The result is that a fixed phase relationship can not be realized is.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation anzugeben, mittels dessen eine phasenverschobene Ansteuerung mehrerer Druckregler über eine variable Pulsweitenmodulations-Frequenz ermöglicht wird.Of the The present invention is based on the object, a method for controlling at least one electromagnetic pressure regulator via a pulse width modulation indicate, by means of which a phase-shifted control of several pressure regulators via a variable pulse width modulation frequency allows becomes.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere erfindungsgemäße Varianten und Vorteile gehen aus den Unteransprüchen hervor.These The object is solved by the features of claim 1. Further variants according to the invention and advantages are apparent from the dependent claims.

Demnach wird vorgeschlagen, dass die Pulsweitenmodulations-Frequenz nicht kontinuierlich, sondern in Stufen verändert wird, wobei die möglichen Frequenzwerte in einem derartigen Verhältnis zueinander stehen, dass eine feste Phasenbeziehung aller Frequenzen untereinander gegeben ist, so dass eine phasenverschobene Ansteuerung mehrerer Druckregler über eine variable Pulsweitenmodulations-Frequenz ermöglicht wirdTherefore it is suggested that the pulse width modulation frequency is not continuous, but is changed in stages, with the possible Frequency values are in such a relationship to each other that a fixed phase relationship of all frequencies is given to each other, so that a phase-shifted control of several pressure regulators via a variable pulse width modulation frequency is enabled

Im Rahmen einer besonders vorteilhaften Variante des erfindungsgemäßen Verfahrens wird vorgeschlagen, die Pulsweitenmodulations-Frequenzen derart zu wählen, dass sie ein ganzzahliges Teil einer konstanten maximalen Frequenz (Basisfrequenz) sind. Beispielsweise können ausgehend von einer Basisfrequenz von 2000 Hz Pulsweitenmodulations-Frequenzen von 1000, 666 2/3, 500, 400, 333 1/3, 285 5/7 und/oder 250 Hz verwendet werden.In a particularly advantageous variant of the method according to the invention, it is proposed to select the pulse width modulation frequencies in such a way that they are an integral part of a constant maximum frequency (base frequency). For example, 400, 333 1/3, 5/7 285 and / or 250 Hz are used can be prepared starting from a base frequency of 2000 Hz pulse width modulation frequencies of 1000, 666 2/3, 500,.

Gemäß der Erfindung sind feinere Abstufungen der Pulsweitenmodulations-Frequenzen möglich, falls dies erforderlich ist. Bevorzugterweise werden die Pulsweitenmodulations-Frequenzen bei der Ansteuerung der Druckregler aus der Menge der erfindungsgemäß möglichen Frequenzen in Abhängigkeit von der Öltemperatur und vom Arbeitspunkt (Druck) des Druckreglers gewählt.According to the invention finer gradations of the pulse width modulation frequencies are possible if this is required. Preferably, the pulse width modulation frequencies in the control of the pressure regulator from the amount of possible according to the invention Frequencies in dependence from the oil temperature and selected from the operating point (pressure) of the pressure regulator.

Claims (4)

Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation, dadurch gekennzeichnet, dass die Pulsweitenmodulations-Frequenz in Stufen verändert wird, wobei die möglichen Frequenzwerte in einem derartigen Verhältnis zueinander stehen, dass eine feste Phasenbeziehung aller Frequenzen untereinander gegeben ist, so dass eine phasenverschobene Ansteuerung mehrerer Druckregler über eine variable Pulsweitenmodulations-Frequenz ermöglicht wird.Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation, characterized in that the pulse width modulation frequency is changed in stages, wherein the possible frequency values are in such a relationship to each other that a fixed phase relationship of all frequencies is given to each other, so that a phase-shifted control several pressure regulator over a variable pulse width modulation frequency is made possible. Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation nach Anspruch 1, dadurch gekennzeichnet, dass die Pulsweitenmodulations-Frequenzen derart gewählt sind, dass sie ein ganzzahliges Teil einer konstanten maximalen Frequenz (Basisfrequenz) sind.Method for controlling at least one electromagnetic Pressure regulator over A pulse width modulation according to claim 1, characterized in that the pulse width modulation frequencies are chosen such that that they are an integer part of a constant maximum frequency (Base frequency). Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation nach Anspruch 2, dadurch gekennzeichnet, dass als Basisfrequenz eine Frequenz von 2000 Hz gewählt wird, wobei Pulsweitenmodulations-Frequenzen von 1000, 666 2/3, 500, 400, 333 1/3, 285 5/7 und/oder 250 Hz verwendbar sind.Method for actuating at least one electromagnetic pressure regulator via a pulse width modulation according to claim 2, characterized in that a frequency is selected from 2000 Hz as a base frequency, said pulse width modulation frequencies of 1000, 666 2/3, 500, 400, 333 1/3, 285 5/7 and / or 250 Hz are usable. Verfahren zur Ansteuerung zumindest eines elektromagnetischen Druckreglers über eine Pulsweitenmodulation nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Pulsweitenmodulations-Frequenzen bei der Ansteuerung der Druckregler aus der Menge der möglichen Frequenzen in Abhängigkeit von der Öltemperatur und vom Arbeitspunkt (Druck) des Druckreglers gewählt werden.Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation according to claim 1, 2 or 3, characterized in that the pulse width modulation frequencies in the control of the pressure regulator from the set of possible frequencies depending on the oil temperature and the working point (pressure) of the pressure regulator can be selected.
DE200510013136 2005-03-22 2005-03-22 Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation Withdrawn DE102005013136A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200510013136 DE102005013136A1 (en) 2005-03-22 2005-03-22 Method for controlling at least one electromagnetic pressure regulator via a pulse width modulation
PCT/EP2006/002388 WO2006099983A1 (en) 2005-03-22 2006-03-15 Method for driving at least one electromagnetic pressure regulator by means of pulse-width modulation

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796853A (en) * 1987-12-22 1989-01-10 General Motors Corporation Remotely configurable solenoid driver circuit for direct pressure electronic transmission control
US4813339A (en) * 1984-11-09 1989-03-21 Hitachi, Ltd. Pulse-width-modulation control of parallel three-way valves to supply single-acting quick-response actuator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4779489A (en) * 1986-06-27 1988-10-25 Borg-Warner Automotive, Inc. Control system for controlling transmission fluid pressure
JP2757304B2 (en) * 1988-08-25 1998-05-25 マツダ株式会社 Transmission hydraulic control device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4813339A (en) * 1984-11-09 1989-03-21 Hitachi, Ltd. Pulse-width-modulation control of parallel three-way valves to supply single-acting quick-response actuator
US4796853A (en) * 1987-12-22 1989-01-10 General Motors Corporation Remotely configurable solenoid driver circuit for direct pressure electronic transmission control

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