GB1371579A - Switching circuit for solenoid valves - Google Patents

Switching circuit for solenoid valves

Info

Publication number
GB1371579A
GB1371579A GB3065772A GB3065772A GB1371579A GB 1371579 A GB1371579 A GB 1371579A GB 3065772 A GB3065772 A GB 3065772A GB 3065772 A GB3065772 A GB 3065772A GB 1371579 A GB1371579 A GB 1371579A
Authority
GB
United Kingdom
Prior art keywords
transistor
voltage
solenoid
current
holding
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
Application number
GB3065772A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1371579A publication Critical patent/GB1371579A/en
Expired legal-status Critical Current

Links

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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2017—Output circuits, e.g. for controlling currents in command coils using means for creating a boost current or using reference switching
    • 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

Abstract

1371579 Solenoid energizing circuits ROBERT BOSCH GmbH 30 June 1972 [1 July 1971] 30657/72 Heading H3T [Also in Division F1] A circuit for rapidly operating and holding a solenoid valve comprises a feed-back arrangement responsive to the voltage across the solenoid for maintaining the voltage constant during build-up of current and a further feedback arrangement responsive to the attainment of a given current to reduce the current to the minimum holding value. In Fig. 2, rendering transistor 12 conducting causes transistors 21 and 22 to conduct and operates solenoid valve 70. When the voltage across the solenoid reaches the maximum allowable value a Zener diode 32 conducts to render conducting a transistor 33 connected to the input of transistors 21 and 22 so as to maintain the voltage across the solenoid constant. The current rises until the voltage across resistor 41 applied to a comparator 51- 56 exceeds the reference voltage across 53 and 55 whereupon the control exercised by transistor 56 on transistor 33 reduces the current to a minimum holding level, transistor 61 being cross-coupled with transistor 56 to assist holding at this level. Diodes 31 and 55 provide temperature compensation and, during the switchoff, the back E.M.F. of the coil is dissipated in transistor 22 and resistor 41. Diodes 26 and 44 serving to protect the rest of the circuit.
GB3065772A 1971-07-01 1972-06-30 Switching circuit for solenoid valves Expired GB1371579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712132717 DE2132717A1 (en) 1971-07-01 1971-07-01 ACTUATION CIRCUIT FOR HIGH SWITCHING SPEED SOLENOID VALVES, IN PARTICULAR A HYDRAULIC CONTROL DEVICE

Publications (1)

Publication Number Publication Date
GB1371579A true GB1371579A (en) 1974-10-23

Family

ID=5812356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3065772A Expired GB1371579A (en) 1971-07-01 1972-06-30 Switching circuit for solenoid valves

Country Status (5)

Country Link
US (1) US3786314A (en)
CH (1) CH552134A (en)
DE (1) DE2132717A1 (en)
FR (1) FR2145221A5 (en)
GB (1) GB1371579A (en)

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4417201A (en) * 1971-04-01 1983-11-22 The Bendix Corporation Control means for controlling the energy provided to the injector valves of an electrically controlled fuel system
USRE31391E (en) * 1971-10-04 1983-09-20 Motorola, Inc. Voltage and current regulator with automatic switchover
US3842329A (en) * 1973-11-12 1974-10-15 Harnischfeger Corp Control for electromechanical brake having transistorized timing reset means
FR2284037A1 (en) * 1974-09-09 1976-04-02 Peugeot & Renault METHOD AND DEVICE FOR CONTROL OF AN ELECTROMAGNETIC INJECTOR
IT1030929B (en) * 1974-12-20 1979-04-10 Honeywell Inf Systems DRIVING CIRCUIT FOR PRINT ELECTROMAGNET
CH607260A5 (en) * 1975-09-05 1978-11-30 Lucifer Sa
IT1055675B (en) * 1975-11-12 1982-01-11 Fiat Spa PROCEDURE AND STABILIZATION DEVICE FOR THE FLOW OF THE ELECTROMAGNETIC INJECTORS BY MEANS OF THE DEFINED OPENING TIME BETWEEN TWO PREFIXED CURRENT THRESHOLDS
IT1051454B (en) * 1975-12-09 1981-04-21 Fiat Spa FLOW RATE STABILIZATION PROCEDURE AND DEVICE IN ELECTROMAGNETIC INJECTORS BY CORRELATION BETWEEN OPENING INSTANT AND EXCITATION CURRENT
GB1576822A (en) * 1976-03-19 1980-10-15 Sevcon Ltd Electromagnetically operated contactors
DE2612914C2 (en) * 1976-03-26 1983-11-10 Robert Bosch Gmbh, 7000 Stuttgart Device for the current-regulated control of electromagnetic injection valves assigned to an internal combustion engine
FR2345595A1 (en) * 1976-03-26 1977-10-21 Bosch Gmbh Robert INSTALLATION FOR THE CONTROL, WITH A REGULATED CURRENT, OF ELECTROMAGNETIC MANEUVERS
DE2706436A1 (en) * 1977-02-16 1978-08-17 Bosch Gmbh Robert Electronic circuit controlling fuel injection system - uses pulses measuring speed and air flow to control fuel valves
US4041546A (en) * 1976-06-04 1977-08-09 Ncr Corporation Solenoid driver circuit
US4059844A (en) * 1976-06-04 1977-11-22 Ncr Corporation Solenoid driver circuit
JPS6056948B2 (en) * 1977-02-08 1985-12-12 株式会社日本自動車部品総合研究所 Solenoid valve drive device
JPS5854673B2 (en) * 1977-04-15 1983-12-06 日立工機株式会社 Printing magnet drive device
GB1604402A (en) * 1977-07-20 1981-12-09 Lucas Industries Ltd Solenoid drive circuits
US4234903A (en) * 1978-02-27 1980-11-18 The Bendix Corporation Inductive load driver circuit effecting slow hold current delay and fast turn off current decay
DE2809905C2 (en) * 1978-03-08 1983-08-04 Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg Relay hold circuit
DE2828678A1 (en) * 1978-06-30 1980-04-17 Bosch Gmbh Robert METHOD AND DEVICE FOR OPERATING AN ELECTROMAGNETIC CONSUMER, IN PARTICULAR AN INJECTION VALVE IN INTERNAL COMBUSTION ENGINES
US4227231A (en) * 1978-09-05 1980-10-07 Eaton Corporation Integral relay low voltage retentive means
US4238813A (en) * 1979-05-21 1980-12-09 The Bendix Corporation Compensated dual injector driver
US4293888A (en) * 1979-06-25 1981-10-06 International Business Machines Corporation Print hammer drive circuit with compensation for voltage variation
DE2932859A1 (en) * 1979-08-14 1981-03-26 Robert Bosch Gmbh, 70469 Stuttgart DEVICE FOR CONTROLLING THE ELECTRICITY BY AN INDUCTIVE CONSUMER, IN PARTICULAR A SOLENOID VALVE IN THE FUEL METERING SYSTEM OF AN INTERNAL COMBUSTION ENGINE
US4250531A (en) * 1979-08-30 1981-02-10 Ahrens Walter C Switch-arc preventing circuit
US4292948A (en) * 1979-10-09 1981-10-06 Ford Motor Company Method for extending the range of operation of an electromagnetic fuel injector
JPS5681232A (en) * 1979-12-04 1981-07-03 Aisan Ind Co Ltd Valve driving mechanism and its control for injector
DE3129610A1 (en) * 1981-07-28 1983-02-17 Bosch und Pierburg System oHG, 4040 Neuss Control circuit for actuators
US4453652A (en) * 1981-09-16 1984-06-12 Nordson Corporation Controlled current solenoid driver circuit
US4437053A (en) * 1982-05-10 1984-03-13 Diasonics (Nmr) Inc. Gradient power supply
US4709233A (en) * 1983-05-27 1987-11-24 Duval David R Single line pair power control system with multi-station capability
DE3325044C2 (en) * 1983-07-12 1986-10-23 Robert Bosch Gmbh, 7000 Stuttgart Current regulator for an electromagnetic consumer in connection with internal combustion engines
US4481554A (en) * 1983-08-18 1984-11-06 Towmotor Corporation Voltage adaptive solenoid control apparatus
US4576135A (en) * 1984-04-24 1986-03-18 Trw Inc. Fuel injection apparatus employing electric power converter
DE3420611A1 (en) * 1984-06-02 1985-12-05 Robert Bosch Gmbh, 7000 Stuttgart DEVICE FOR CONTROLLING AND REGULATING THE CURRENT BY AN ELECTROMAGNETIC CONSUMER IN CONNECTION WITH INTERNAL COMBUSTION ENGINES
US4620261A (en) * 1984-10-11 1986-10-28 Fairchild Weston Systems, Inc. Apparatus and method for controlling electromagnetic clutches and the like
KR890008499A (en) * 1987-11-20 1989-07-10 고가 요시네 Solenoid valve drive control circuit
DE4434684A1 (en) * 1994-09-28 1996-04-04 Fev Motorentech Gmbh & Co Kg Electromagnetic circuit armature movement control method e.g. for IC engine positioning element
DE29503146U1 (en) * 1995-02-24 1995-04-13 Siemens Ag Circuit arrangement for controlling a contactor
US5687050A (en) * 1995-07-25 1997-11-11 Ficht Gmbh Electronic control circuit for an internal combustion engine
FR2739969B1 (en) * 1995-10-12 1997-11-14 Schneider Electric Sa SUPPLY CIRCUIT FOR AN ELECTRIC MAGNET DRIVE
IT1291564B1 (en) * 1997-04-14 1999-01-11 Brevini Hydraulics Spa ELECTRO-HYDRAULIC DEVICE FOR DRIVING AND REMOTE CONTROL OF A HYDRAULIC DISTRIBUTOR
DE502004009417D1 (en) * 2003-02-20 2009-06-10 Wacker Chemie Ag METHOD FOR STABILIZING DISPERSIONS
US7161787B2 (en) * 2004-05-04 2007-01-09 Millipore Corporation Low power solenoid driver circuit
US7684168B2 (en) * 2007-01-15 2010-03-23 Yazaki North America, Inc. Constant current relay driver with controlled sense resistor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL279663A (en) * 1961-07-05
US3235775A (en) * 1962-06-22 1966-02-15 Teletype Corp Selector magnet driver
US3241002A (en) * 1962-11-05 1966-03-15 Eaton Mfg Co Control for electromagnetic coupling apparatus

Also Published As

Publication number Publication date
FR2145221A5 (en) 1973-02-16
CH552134A (en) 1974-07-31
US3786314A (en) 1974-01-15
DE2132717A1 (en) 1973-01-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee