WO2004104396A1 - Etage pilote destine a une electrovanne - Google Patents

Etage pilote destine a une electrovanne Download PDF

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Publication number
WO2004104396A1
WO2004104396A1 PCT/EP2004/004310 EP2004004310W WO2004104396A1 WO 2004104396 A1 WO2004104396 A1 WO 2004104396A1 EP 2004004310 W EP2004004310 W EP 2004004310W WO 2004104396 A1 WO2004104396 A1 WO 2004104396A1
Authority
WO
WIPO (PCT)
Prior art keywords
driver stage
diode
switching
connection
solenoid
Prior art date
Application number
PCT/EP2004/004310
Other languages
German (de)
English (en)
Inventor
Gianni Padroni
Original Assignee
Ina-Schaeffler Kg
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 Ina-Schaeffler Kg filed Critical Ina-Schaeffler Kg
Priority to EP04739099A priority Critical patent/EP1627143A1/fr
Publication of WO2004104396A1 publication Critical patent/WO2004104396A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08142—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in field-effect transistor switches
    • 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
    • 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
    • F02D2041/2041—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit for controlling the current in the free-wheeling phase
    • 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
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2075—Type of transistors or particular use thereof

Definitions

  • the invention relates to a driver stage for a solenoid valve of an internal combustion engine.
  • a solenoid valve is used to control a valve lift of an intake or exhaust valve by a hydraulic system.
  • the control takes place as a function of a crankshaft angle, a cycle being generally achieved by two crankshaft revolutions (720 ° crankshaft angle).
  • Solenoid valves of this type generally require a comparatively large amount of energy when they are actuated, which correspondingly leads to additional consumption of the motor for generating the auxiliary energy and requires complex cooling of the valve and the driver stage in order to dissipate the heat generated.
  • JP 2000145568 A shows a driver stage for a solenoid injection valve, in which two inductors are each connected to ground with one connection via a transistor with a surge protection diode connected in parallel and with the other connection to another supply voltage connection.
  • the invention has for its object to provide a driver stage for a solenoid valve that enables safe operation and yet requires a relatively low amount of energy.
  • driver stage with the features of claim 1.
  • the sub-claims describe preferred further developments.
  • a driver device with the driver stage according to the invention and a control device is provided, which is implemented in the engine control unit of the vehicle or can also be provided as a separate device.
  • the invention relates to a driver stage for a solenoid valve of an internal combustion engine, which has the following components: a first and a second driver stage connection A1, A2 for applying a supply voltage, an inductance L of the solenoid valve, one arranged between a first inductance connection L1 and the first driver stage connection A1 first functional device T1 with a first control input G1, a second functional device T2 arranged between a second inductance connection L2 and the second driver stage connection A2, a third functional device T3 arranged between the first inductance connection L1 and the second driver stage connection A2, the third functional device T3 being a third diode device DM3 and a third switching device M3 bridging the third diode device DM3 with a third control input G3 and two third switching connections S3, D3 and the third Control input G3 is switchable depending on a crankshaft angle.
  • a driver device and a control device for this driver stage are provided, which transmit control signals to the control inputs G1, G2, G3 for setting conductive or blocking states of the switching devices M1, M2, M3 outputs.
  • an active functional device namely the third functional device
  • the third functional device has a diode junction and a switching device that short-circuits the diode junction.
  • the diode junction can be used as an internal diode of the switching device - i.e. a suitable pn junction of a semiconductor component - or as an external diode connected in parallel.
  • the diode transition is short-circuited by correspondingly controlling a control input of the third switching device, as a result of which the voltage drop in the forward voltage of the diode is eliminated and the electrical resistance is significantly reduced.
  • FIG. 1 is a block diagram of a driver stage according to the invention
  • FIG. 2 shows a time diagram of a switching-on process of the active third functional device with the courses of the relevant voltages and currents of the driver stage
  • FIG. 3 shows a time diagram of a switching-off process of the active third functional device with the courses of the relevant voltages and currents of the driver stage
  • the driver stage 1 shown in FIG. 1 has a first connection A1 for connection to a positive supply voltage and a second connection A2 for connection to a negative supply voltage terminal - generally ground GND - of a vehicle.
  • a solenoid valve with inductance L and a first and second inductance connection L1, L2 is provided for controlling a hydraulic circuit (not shown further).
  • a first functional device T1 is connected between the first inductance connection L1 and the first connection terminal A1
  • a third functional device T3 is connected between the first inductance connection L1 and the ground connection A2
  • a second functional device T2 is connected between the second inductance connection L2 and the ground connection A2.
  • Each functional device T1, T2, T3 each has an n-channel depletion mosfet M1, M2, M3 serving as a switching device and a diode transition DM1, DM2, running in the forward direction from the source S1, S2, S3 to the drain D1, D2, D3, DM3 on.
  • the diode transitions DM1, DM2, DM3 can each be connected in parallel as external components to the MOSFETs or as internal diode transitions of the MOSFETs, i.e. be designed as suitable pn junctions between correspondingly doped regions.
  • the switching devices M1, M2, M3 are designed as solid-state power switching devices, preferably as transistors such as MOSFETs, but in particular, as already mentioned, as n-channel enhancement MOSFETs and / or JFETs, HEXFETs or bipolar transistors.
  • FIG. 2 shows the switching-on process of the third functional device T3 serving as the active functional device. 2 shows:
  • the gate voltage Vgate M1 ie voltage between G1 and ground GND
  • the gate-source voltage Vgate-source M1 between gate G1 and Sour ce S1
  • the drain-source current Idrain-sourcel through M1 d) the voltage V DM3 dropping at DM3, e) the current I DM3 flowing through DM3, f) a voltage Vgate M3 present at the gate G3 of M3 (which is equal to the Gate-source voltage of M3 is, since the source S3 is grounded GND).
  • the voltage V DM3 present at the diode DM3 increases simultaneously according to FIG. 2d and reaches the limit voltage Vthreshold DM3 for controlling DM3 at t2, so that according to FIG. 2e the diode current I DM3 increases and the current Idrain-source M1 drops accordingly.
  • the limit voltage Vthreshold of M1 is reached, so that M1 completely blocks and I DM3 absorbs the complete solenoid current I solenoid.
  • the solenoid current I solenoid thus flows through DM3 instead of M1.
  • the control voltage required for a diode transition now drops at DM3, which does not drop in the initial state when the MOSFET M1 is conductive, so that the power consumption is initially increased.
  • the voltage Vgate M3 is reduced from t6, so that the gate-source voltage drops and the voltage V DM3 present at DM3 increases accordingly until the limit voltage V threshold DM3 is reached at t7 and an increasing current I DM3 flows through DM 3 , At t ⁇ locks M3, so the full solenoid current. I solenoid flows through DM 3. Furthermore, the voltage V gate M1 at G1 is increased and reaches the threshold value V threshold M1 for modulating M1 at t9, so that an increasing current flows through M1 according to FIG. 3g, which, when DM3 is blocked, the full value I solenoid at time t10 occupies.
  • the functional devices T1 and T3 can be operated alternately as active functional devices according to the invention, since a diode junction DM 1 is provided in parallel with M1.
  • M2 only serves as an enable input and is always open.
  • 4a shows the state when the Mosfet M1 is closed.
  • the time sequence and the respective relationships are shown by arrows in the characteristic fields of the Mosfet M1 and the diode DM3.
  • 4b shows the state when the Mosfet M3 is closed.
  • the time sequence and the respective relationships are also shown by arrows in the characteristic fields of the Mosfet M3 and the diode DM3.
  • FIGS. 4a, 4b show the time course of the phases shown in FIGS. 2 and 3 on the basis of the characteristic curves of the power devices.
  • Vcc is the supply voltage
  • Vd is the voltage drop across the diode
  • Vdson on the other hand, is the limit voltage from which the diode begins to conduct current
  • Vds is the drain-source voltage at the Mosfet
  • ld ! is the current through the diode
  • Vgs is the gate-source voltage on the Mosfet
  • Ids is the current flowing through the Mosfet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electronic Switches (AREA)

Abstract

L'invention concerne un étage pilote destiné à une électrovanne d'un moteur à combustion interne, et un dispositif pilote d'un tel étage pilote. L'invention vise à garantir un fonctionnement sûr à de faibles coûts. A cet effet, ledit étage pilote est composé d'une première et d'une deuxième connexion d'étage pilote (A1, A2) destinées à l'application d'une tension d'alimentation ; d'un premier dispositif fonctionnel (T1) monté entre une première connexion de résistance inductive (L1) et la première connexion d'étage pilote (A1) ; d'un deuxième dispositif fonctionnel (T2) monté entre une deuxième connexion de résistance inductive (L2) et la deuxième connexion d'étage pilote (A2) ; et, d'un troisième dispositif fonctionnel (T2) monté entre la première connexion de résistance inductive (L1) et la deuxième connexion d'étage pilote (A2). Ledit troisième dispositif fonctionnel (T3) comporte un troisième dispositif de diodes (DM3) et un troisième dispositif de commutation (M3) pontant le troisième dispositif de diodes (DM3), pourvu d'une troisième entrée de commande (G3) et de deux troisièmes connexions de commutation (S3, D3), la troisième entrée de commande (G3) pouvant être commutée en fonction d'un angle de vilebrequin.
PCT/EP2004/004310 2003-05-22 2004-04-23 Etage pilote destine a une electrovanne WO2004104396A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04739099A EP1627143A1 (fr) 2003-05-22 2004-04-23 Etage pilote destine a une electrovanne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10323172A DE10323172A1 (de) 2003-05-22 2003-05-22 Treiberstufe für ein Solenoidventil
DE10323172.2 2003-05-22

Publications (1)

Publication Number Publication Date
WO2004104396A1 true WO2004104396A1 (fr) 2004-12-02

Family

ID=33441152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/004310 WO2004104396A1 (fr) 2003-05-22 2004-04-23 Etage pilote destine a une electrovanne

Country Status (3)

Country Link
EP (1) EP1627143A1 (fr)
DE (1) DE10323172A1 (fr)
WO (1) WO2004104396A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947300A1 (fr) * 2005-10-10 2008-07-23 Lei He Electrovanne a aimant permanent et systeme de commande de celle-ci
WO2009118168A1 (fr) 2008-03-27 2009-10-01 Grünenthal GmbH Dérivés substitués du 4-aminocyclohexane
WO2011057757A1 (fr) 2009-11-11 2011-05-19 Almirall, S.A. Nouveaux dérivés de 7-phényl-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one
EP2740476A1 (fr) 2010-07-28 2014-06-11 Grünenthal GmbH Dérivés de cis-tetrahydro-spiro(cyclohexan-1,1'-pyrido[3,4-b]indol)-4-amine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005022714A1 (de) * 2005-05-18 2006-11-23 Schaeffler Kg Vorrichtung mit einem elektrischen Nockenwellenversteller, einer Steuereinheit und einem zentralen Steuergerät

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307835A1 (de) * 1992-03-25 1993-09-30 Volkswagen Ag Schaltungsanordnung zur zeitgenauen Betätigung eines Schaltmagneten in einer Kraftstoff-Einspritzvorrichtung
US6249418B1 (en) * 1999-01-27 2001-06-19 Gary Bergstrom System for control of an electromagnetic actuator
WO2001052294A1 (fr) * 2000-01-14 2001-07-19 Motorola Inc. Circuit de commande de charge inductive utilisant la recuperation d'energie

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403375A1 (de) * 1993-03-04 1994-09-08 Siemens Ag Einrichtung und Verfahren zum Steuern eines induktiven Verbrauchers
DE19747033A1 (de) * 1997-10-24 1999-04-29 Daimler Chrysler Ag Elektronische Schalteinrichtung für Magneten
JP2000145568A (ja) * 1998-11-10 2000-05-26 Hitachi Ltd 電磁式燃料噴射弁の駆動回路
DE10018175A1 (de) * 2000-04-12 2001-10-25 Bayerische Motoren Werke Ag Schaltungsanordnung zum Betrieb eines hochdynamischen elektromagnetischen Hubanker-Aktors
DE10020896A1 (de) * 2000-04-29 2001-10-31 Lsp Innovative Automotive Sys Verfahren zur Bestimmung der Position eines Ankers/ eines Ventils

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307835A1 (de) * 1992-03-25 1993-09-30 Volkswagen Ag Schaltungsanordnung zur zeitgenauen Betätigung eines Schaltmagneten in einer Kraftstoff-Einspritzvorrichtung
US6249418B1 (en) * 1999-01-27 2001-06-19 Gary Bergstrom System for control of an electromagnetic actuator
WO2001052294A1 (fr) * 2000-01-14 2001-07-19 Motorola Inc. Circuit de commande de charge inductive utilisant la recuperation d'energie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"Analog Signaturanalyse Trainingshandbuch", 1996, POLAR INSTRUMENTS LTD., GUERNSEY, XP002291711 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947300A1 (fr) * 2005-10-10 2008-07-23 Lei He Electrovanne a aimant permanent et systeme de commande de celle-ci
EP1947300A4 (fr) * 2005-10-10 2010-08-18 Lei He Electrovanne a aimant permanent et systeme de commande de celle-ci
WO2009118168A1 (fr) 2008-03-27 2009-10-01 Grünenthal GmbH Dérivés substitués du 4-aminocyclohexane
EP2518052A1 (fr) 2008-03-27 2012-10-31 Grünenthal GmbH Dérivés de 4-aminocyclohexane substitués
WO2011057757A1 (fr) 2009-11-11 2011-05-19 Almirall, S.A. Nouveaux dérivés de 7-phényl-[1,2,4]triazolo[4,3-a]pyridin-3(2h)-one
EP2740476A1 (fr) 2010-07-28 2014-06-11 Grünenthal GmbH Dérivés de cis-tetrahydro-spiro(cyclohexan-1,1'-pyrido[3,4-b]indol)-4-amine

Also Published As

Publication number Publication date
EP1627143A1 (fr) 2006-02-22
DE10323172A1 (de) 2004-12-09

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