EP0986703B1 - Dispositif pour la commande d'un appareil de reglage electromecanique - Google Patents

Dispositif pour la commande d'un appareil de reglage electromecanique Download PDF

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Publication number
EP0986703B1
EP0986703B1 EP98933511A EP98933511A EP0986703B1 EP 0986703 B1 EP0986703 B1 EP 0986703B1 EP 98933511 A EP98933511 A EP 98933511A EP 98933511 A EP98933511 A EP 98933511A EP 0986703 B1 EP0986703 B1 EP 0986703B1
Authority
EP
European Patent Office
Prior art keywords
coil
controller
voltage
time
current
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.)
Expired - Lifetime
Application number
EP98933511A
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German (de)
English (en)
Other versions
EP0986703A2 (fr
Inventor
Christian Hoffmann
Richard Wimmer
Achim Koch
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.)
Siemens AG
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Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP0986703A2 publication Critical patent/EP0986703A2/fr
Application granted granted Critical
Publication of EP0986703B1 publication Critical patent/EP0986703B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01F7/1844—Monitoring or fail-safe circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D13/00—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
    • F02D13/02—Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
    • F02D13/0253—Fully variable control of valve lift and timing using camless actuation systems such as hydraulic, pneumatic or electromagnetic actuators, e.g. solenoid valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0002—Controlling intake air
    • F02D2041/001—Controlling intake air for engines with variable valve actuation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
    • F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2051—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using voltage control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/123—Guiding or setting position of armatures, e.g. retaining armatures in their end position by ancillary coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Definitions

  • the invention relates to a device for controlling a electromechanical actuator according to the preamble of the independent Claim. It particularly affects one Actuator for controlling an internal combustion engine.
  • a known actuator (EP 0 400 389 A2) has an actuator and an actuator.
  • the actuator includes an electromagnet with a core and a coil.
  • the electromagnet is arranged in a housing.
  • An anchor plate is movable arranged to the first electromagnet and is by a spring biased into a predetermined rest position. Around the anchor plate from its rest position in contact with the first Bringing electromagnets to the coil with a pull-in current excited.
  • the pull-in current causes an electromagnetic Force the anchor plate against one by the spring caused force pulls on the electromagnet.
  • the actuator is assigned a two-point controller with hysteresis, its controlled variable is the current through the coil and its manipulated variable is a pulse-shaped voltage signal that is applied to the coil becomes.
  • EP 0 669 457 A1 describes a fuel injection device known in which a solenoid valve is provided at which the valve anchor plate is actuated by a control loop the control loop adjusts the voltage across the coil.
  • the actual value of the current is used as the control variable compared with one setpoint or several setpoints and used for regulation.
  • the power supply clocked depending on the supply voltage.
  • EP 0 067 936 A2 is a two-point controller known for an electromagnet of a printer hammer, the Switching thresholds depend on the supply voltage. The setpoint of the controller depends on the Supply voltage.
  • the object of the invention is a device for control of an electromechanical actuator that is simple and precise, especially timely, control of the actuator.
  • the invention is characterized by the features of the independent claim solved.
  • the solution is characterized by that a pulse width modulator is provided which the manipulated variable modulated depending on the supply voltage. So is a constant switching time regardless of fluctuations in the Supply voltage guaranteed.
  • the switching time is defined than the amount of time that is needed around the anchor plate from a predetermined rest position against one by the Spring caused spring force to contact the electromagnet bring to.
  • the constant switching time is an important one Advantage because the supply voltage, especially with one Motor vehicle, subject to major fluctuations.
  • Another The advantage is that on an expensive and complex voltage regulator can be dispensed with because the current flow in the Switch-on phase of the controller, i.e. before reaching the control range of the controller, on average regardless of the time Supply voltage is always the same, although only one controller done by the controller.
  • Actuator designed as a gas exchange valve and the actuator arranged in an internal combustion engine. So are constant Switching times of the gas exchange valve regardless of the supply voltage and thus a low-consumption and low-emission Operation of the internal combustion engine guaranteed.
  • An actuator 1 ( Figure 1) comprises an actuator 11 and an actuator, for example as a gas exchange valve and a shaft 121 and a plate 122 Has.
  • the actuator 11 has a housing 111 in which a first Electromagnet is arranged.
  • the first electromagnet has a first core 112. In an annular groove of the first A first coil 113 is embedded in the core 112.
  • the first Core 112 has a recess 114a, which acts as a guide for the Shaft 121 serves.
  • An anchor plate 115 is in the housing 111 movably arranged to the first core 112.
  • a first one Spring 116a tensions the anchor plate into a predetermined rest position R before.
  • Actuator 1 is rigidly connected to a cylinder head 21.
  • the cylinder head 21 is an intake port 22 and a cylinder 23 associated with a piston 24.
  • the piston 24 is coupled to a crankshaft 26 via a connecting rod 25.
  • a control device 4 is provided, the signals from sensors detected and control signals for the actuator 11 generated.
  • the sensors are preferably used as a position transmitter 5, which detects a position X of the anchor plate 115 as a first ammeter 7a, which is the actual value I AV1 of the current the first coil 113 detected as a speed sensor 27, the Speed N of the crankshaft 26 detected, or as a load detection sensor 28, which is preferably an air mass meter or is a pressure sensor.
  • a load detection sensor 28 which is preferably an air mass meter or is a pressure sensor.
  • a voltage source 8 is provided, preferably as Generator, as a battery or as a parallel connection of the Generator and the battery is formed and the one supply voltage generated.
  • the control device 4 comprises one Regulator, which preferably as a two-point regulator 41 Hysteresis is formed, the controlled variable of the current through is the coil 113 and the manipulated variable is a voltage, which is applied to the coil 113.
  • the manipulated variable that is in the time course is a voltage signal is from a Pulse width modulator 42 depending on the supply voltage modulated.
  • the modulated voltage signal is then one Driver 7a fed, which amplifies it and the first coil 113 feeds.
  • FIG. 2a shows the time profile of the carrier signal S T of the pulse width modulator 42.
  • Figure 2 b shows the time course of the modulated and amplified voltage signal U1
  • Figure 2 c shows the associated Course of the actual value I_AV of the current through the first Coil 113.
  • Figure 2d shows the time course of the position X of the anchor plate 115.
  • the setpoint value of the current through the first coil 113 is a predetermined catch current I_F.
  • armature plate 115 comes into contact with first core 112.
  • the setpoint value of the current through first coil 113 is a predetermined holding current I_H.
  • the two-point controller 41 with hysteresis accordingly specifies a voltage pulse as a voltage signal from the time t 1 to the time t 5 , which is modulated with the carrier signal S T and then amplified by the driver 7a, so that the curve shown in FIG. 2b changes from the time t 1 to t 5 results.
  • the amplified and modulated voltage signal U1 is applied to the coil 113.
  • the resulting actual value I_AV of the current can be clearly seen in FIG. 2c.
  • the actual value I_AV of the current fluctuates from a time t 1 to a time t 5 around the time profile (dotted curve), as it results when the supply voltage has the minimum value U_Min.
  • the anchor plate 115 comes into contact with the first core 112 at the time t 5a. From the time t 6 to the time t 7 , the setpoint I_SP1 of the current through the coil is the holding current I_H. Time t 6 is preferably chosen so that it is as close as possible to time t 5a . The impact of the anchor plate 115 is preferably determined by evaluating the position X. In a simple embodiment, the time interval between the times t 1 and t 6 can also be an experimentally determined, predetermined value.
  • the setpoint value of the current through the first coil 113 changes from zero to the capture current I_F.
  • the supply voltage has the minimum value U_Min.
  • the pulse width T P of the carrier signal S T is therefore equal to the period T T.
  • the carrier signal S T accordingly has a constant value from the time t 8 to the time t 12 .
  • the time profile of the modulated and amplified voltage signal Ül corresponds to the voltage signal from time t 8 to time t 12 except for the change in amplitude caused by the amplification, that is to say the time profile of the manipulated variable of the two-point controller 41 to the system with the first core 112.
  • the setpoint I_SP1 of the current through the coil 113 is the holding current I_H.
  • the switching time which is determined by the time required to bring the armature plate from its open position, which corresponds to the rest position R in this exemplary embodiment, into its closed position C, that is to say in contact with the first electromagnet, is therefore independent of that Value of the supply voltage and approximately constant.
  • the time interval between the times t 1 and t 5a and between the times t 8 and t 10 is approximately the same. This is an important advantage, since a precise switching duration is a prerequisite for precise charge control for the cylinder 23.
  • FIG. 3 shows a further arrangement of the preferred embodiment of the actuator 1 with a further embodiment the control device 4 'according to the invention.
  • the actuator 11 differs from that in FIG. 1 in that that it has a second electromagnet with a second core 117 and a second coil 118.
  • the second Core 117 has a recess 114b, which also serves as a guide for the Shaft 121 serves.
  • the anchor plate 115 is in the housing 111 moveable between the first core 112 and the second core 117 arranged.
  • the first spring 116a and the second spring 116b tension the anchor plate in a predetermined rest position R before.
  • the control device 4 'differs from the control device according to FIG. 1, a further two-point controller 43 with hysteresis, whose controlled variable is the current through the second coil 118 and the manipulated variable is one Voltage that is applied to the second coil 118.
  • the two-point controller 43 generates a further voltage signal, another pulse width modulator 44 as a modulation signal is fed.
  • the further voltage signal is in the further pulse width modulator 44 as well as in the pulse width modulator 42 modulated and then by driver 7b strengthened.
  • the second coil 118 is modulated with the further one and corrected voltage signal.
  • the first or second coil only with a significantly lower capture current I_F be applied because the spring-mass system can oscillate and only losses due to friction can be compensated have to.
  • the actuator can also be used as an injection valve be trained.
  • the control device 4, 4 ' can be designed as a microcontroller, but it can also a logic circuit or an analog circuit arrangement include.
  • the controller or the further controller can for example also as a single-point controller with a timer or be designed as a pulse width modulation controller.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Valve Device For Special Equipments (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

L'invention concerne un dispositif pour la commande d'un appareil de réglage électromécanique comportant un actionneur et un mécanisme de commande. Le mécanisme de commande comprend un électroaimant avec un noyau (112) et une bobine (113), ainsi qu'une plaque d'induit (115) mobile. Le dispositif comporte un régulateur dont la grandeur réglée correspond au courant passant à travers la bobine (113) et dont la grandeur de réglage correspond à une tension appliquée à la bobine. Une source de tension (8) génère une tension d'alimentation. Un modulateur de durée d'impulsion (42) module la grandeur de réglage en fonction de la tension d'alimentation.

Claims (4)

  1. Dispositif de commande d'un appareil de réglage électromécanique, qui comprend un organe de réglage et un entraínement de réglage comportant une armature mobile (117) pouvant être déplacée et comportant un électroaimant qui présente un noyau (112) et une bobine (113), tandis qu'il est prévu un régulateur dont la grandeur de régulation est le courant passant dans la bobine (113) et dont la grandeur de réglage est une tension qui est appliquée aux bornes de la bobine (113), qu'il est prévu une source de tension (8) qui produit une tension d'alimentation et qu'il est prévu un modulateur d'impulsions en durée (42), caractérisé en ce que le modulateur d'impulsions en durée module la grandeur de réglage, à partir d'un saut de la valeur de consigne du régulateur, au moins jusqu'à ce que la valeur de consigne soit atteinte par la valeur réelle du régulateur, en fonction de la tension d'alimentation.
  2. Dispositif suivant la revendication 1, caractérisé en ce que l'organe de réglage comprend un second électroaimant qui comporte un second noyau (117) et une seconde bobine (118) et qui est disposé à une distance préfixée vis-à-vis de l'électroaimant, en ce qu'il est prévu un second régulateur dont la grandeur de régulation est le courant passant dans la seconde bobine (118) et dont la grandeur de réglage est une tension qui est appliquée aux bornes de la seconde bobine (118), et en ce qu'il est prévu un second modulateur d'impulsions en durée (44) qui module la grandeur de réglage en fonction de la tension d'alimentation.
  3. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que l'organe de réglage est réalisé sous forme d'une soupape de changement des gaz.
  4. Dispositif suivant la revendication 1 ou 2, caractérisé en ce que le régulateur est réalisé sous forme d'un régulateur par tout ou rien (41, 43) à hystérésis.
EP98933511A 1997-06-06 1998-05-12 Dispositif pour la commande d'un appareil de reglage electromecanique Expired - Lifetime EP0986703B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19723931 1997-06-06
DE19723931A DE19723931A1 (de) 1997-06-06 1997-06-06 Einrichtung zum Steuern eines elektromechanischen Stellgeräts
PCT/DE1998/001318 WO1998055748A2 (fr) 1997-06-06 1998-05-12 Dispositif pour la commande d'un appareil de reglage electromecanique

Publications (2)

Publication Number Publication Date
EP0986703A2 EP0986703A2 (fr) 2000-03-22
EP0986703B1 true EP0986703B1 (fr) 2002-10-02

Family

ID=7831702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98933511A Expired - Lifetime EP0986703B1 (fr) 1997-06-06 1998-05-12 Dispositif pour la commande d'un appareil de reglage electromecanique

Country Status (5)

Country Link
US (1) US6297941B1 (fr)
EP (1) EP0986703B1 (fr)
JP (1) JP2002506566A (fr)
DE (2) DE19723931A1 (fr)
WO (1) WO1998055748A2 (fr)

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EP1101015B1 (fr) 1999-05-27 2002-09-04 FEV Motorentechnik GmbH Procede de commande d'un actionneur electromagnetique destine a actionner une soupape d'echange des gaz d'un moteur a pistons
US6648297B1 (en) 1999-06-18 2003-11-18 Siemens Aktiengesellschaft Method for controlling an electromechanical actuator
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DE10130335C1 (de) * 2001-06-26 2003-02-13 Zf Lemfoerder Metallwaren Ag Ver- und Entriegelungsmechanismus mit Elektromagnet
JP3851140B2 (ja) * 2001-10-30 2006-11-29 ボッシュ株式会社 流量制御用電磁比例制御弁の駆動方法
DE10155969A1 (de) * 2001-11-14 2003-05-22 Bosch Gmbh Robert Vorrichtung zur Ansteuerung eines elektromagnetischen Stellgliedes
DE10227278B4 (de) * 2002-06-19 2012-01-26 Robert Bosch Gmbh Ansteuerschaltung für ein elektromagnetisches Stellglied
DE10315585A1 (de) * 2003-04-05 2004-10-14 Mahle Filtersysteme Gmbh Verfahren zum Betätigen einer elektromagnetischen Stelleinrichtung
DE10358858A1 (de) * 2003-12-16 2005-07-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum Betreiben einer induktiven Last mit unterschiedlichen elektrischen Spannungen
JP2007071186A (ja) * 2005-09-09 2007-03-22 Toyota Motor Corp 電磁駆動弁
US20090009881A1 (en) * 2006-01-11 2009-01-08 Koninklijke Philips Electronics N.V. Control of Electrowetting Lenses
CN101866737A (zh) * 2009-04-14 2010-10-20 杨泰和 高压启动低压通电保持的电磁致动装置
DE102010001004A1 (de) * 2010-01-19 2011-07-21 Robert Bosch GmbH, 70469 Verfahren und Vorrichtung zur Ansteuerung von Aktuatoren
CN102493886B (zh) * 2011-11-30 2014-04-30 潍柴动力股份有限公司 一种喷油器开启时间修正方法及装置
US20150167589A1 (en) * 2013-12-13 2015-06-18 Hyundai Motor Company Method and apparatus for controlling high pressure shut-off valve
JP6056804B2 (ja) * 2014-04-18 2017-01-11 株式会社デンソー 電磁弁制御装置
US9546069B2 (en) 2015-04-09 2017-01-17 Microsoft Technology Licensing, Llc Drive for electromechanical control of lines
GB2558638A (en) * 2017-01-13 2018-07-18 Delphi Int Operations Luxembourg Sarl Method to control the activation of a reductant doser

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Also Published As

Publication number Publication date
DE19723931A1 (de) 1998-12-10
JP2002506566A (ja) 2002-02-26
DE59805814D1 (de) 2002-11-07
US6297941B1 (en) 2001-10-02
WO1998055748A2 (fr) 1998-12-10
EP0986703A2 (fr) 2000-03-22
WO1998055748A3 (fr) 1999-03-11

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