СПОСОБ РЕГУЛИРОВАНИЯ ВРЕМЕНИ СРАБАТЫВАНИЯ ЭЛЕКТРОМАГНИТА И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

FIELD: electrical engineering. SUBSTANCE: invention relates to electrical engineering, can be used for control of electromagnets (EM) of valves and switching devices and is used mainly when solving problem of simultaneous control of several switching devices or valves, when it is important to ensure their synchronous operation. Method is based on regulation of EM actuation time due to automatic change and stabilization of voltage supplied to EM winding during cycle of actuation. Trigger time value is measured in each EM actuation cycle, at the end of which the deviation of the obtained actuation time from the specified value is determined, and before the beginning of the next cycle, the new constant on the cycle is changed value of voltage supplied to the EM winding at its subsequent connection, providing variation of duration of time interval required to achieve current value of winding, at exceeding of which movement of armature begins. Variation of the voltage value supplied to the EM winding at its activation before each new actuation cycle is performed automatically until the electromagnet actuation time reaches the specified value with the required accuracy. Value of voltage supplied to EM winding at its inclusion in each next operation cycle is changed by adding to its current increment value, value of which is determined by multiplying the deviation value of the obtained actuation time from a given value by a coefficient characterizing the effect of voltage variation on the value of the actuation time, which is automatically re-set before each actuation cycle by dividing the voltage increment applied to the winding at the previous actuation cycle by the value of the obtained increment of the actuation time. In order to implement the disclosed method, an electrical schematic diagram of its possible design is proposed. EFFECT: technical result consists in expansion of functional capabilities and improvement of efficiency. 7 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ...

Verbesserung elektromagnetischer Stellvorrichtungen

... 1 zeigt beispielhaft den erfindungsgemäßen Betriebsbereich der elektromagnetischen Stellvorrichtung vom Zeitpunkt Null, also vom Einschaltzeitpunkt, der ausschließlich innerhalb der Einschaltzeit der Spule liegt, was den Vorteil hat, dass mit sehr kurzen Stromstößen, die ausschließlich im Induktivbereich erfolgen, eine nahezu beliebige Stromübersteuerung der Spule erfolgen kann, solange die eingebrachte Energie klein genug ist, um die Grenztemperatur der elektromagnetischen Stellvorrichtung nicht zu überschreiten. Aufgrund der kurzen Stromstöße, die beispielsweise in einem Bereich von 10 μs–1 ms liegen können, ist die Einschaltdauer ED der Spule äußerst kurz und liegt beispielsweise bei 0,01%, so dass auch die Stromübersteuerung der Spule den Faktor 10.000 annehmen kann, ohne die Grenztemperatur zu überschreiten.

Solenoid control circuit

Solenoid control circuit for optional use with a first solenoid requiring a relatively large holding current or with a second solenoid requiring a relatively small holding current. A solenoid connected to the solenoid control circuit is initially excited in order to change the solenoid from a quiescent state into an operating state. A detector determines whether a characteristic value of the initial solenoid excitation corresponds to a characteristic value of the first solenoid or of the second solenoid. The solenoid control circuit varies the holding current fed to the solenoid as a function of whether the detector determines the first solenoid requiring the relatively large holding current or the second solenoid requiring a relatively small holding current. A fault detector circuit interrupts the solenoid excitation in the event of an excessive flow of current (Figure 1). ...

ELEKTRISCHE ERREGUNGSSCHALTUNG

Verfahren zur Bewegungssteuerung eines Ankers eines elektromagnetischen Aktuators

SOLENOID OPERATED SPOOL VALVE CONTROL SYSTEMS

Method of controlling a solenoid valve

A solenoid valve such as a fuel injector of an automotive system is charged by a pulse width modulated (PWM) signal and is controlled by: determining a target end of command EOCtgt of the valve as a function of a PWM state and a time interval from a last change of PWM state; monitoring a current value, a PWM phase period and the PWM state of a last pulse width modulated signal; and correcting in the next pulse width modulated signal at least one of the current value and the PWM phase period, so that a next end of command of the valve will occur at the target end of command. The current value can be the maximum hold current Imax and the PWM phase period the phase period before the PWM holding phase. Both may be controlled using a weight value (k) between zero and one for the PWM phase period and one minus the weight value (1-k) for the maximum hold current.

Solenoid operated spool valve control systems

A solenoid operated spool valve in which a double ended spool is moved between one or the other of two positions to control hydraulic fluid flow, e.g. in a tool cutting machine, has two coils to control the spool movement. A holding voltage, e.g. of some 50% of the operating voltage is applied to one coil to hold the spool in a first position and, to allow a quicker return of the spool to the second position, a pulsed voltage of short duration is applied to the second coil on switch off. The second coil may be supplied with a bias voltage when the spool is in the first position. Spool movement may be monitored by a current sensing circuit.

Improvements in and relating to control devices for load carrying electromagnets

... 694,615. Control systems for electromagnets. TELEMACANIQUE ELECTRIQUE. Aug. 3, 1951 [Dec. 30, 1950], No. 18494/51. Class 38 (iv). [Also in Group XXXVII] In a control system for a lifting magnet E, wherein (a) the magnet is normally energized over switch contacts A1, D2; (b) upon opening of contacts A1 a discharge circuit A2, 8, D2 is provided for the magnet; and (c) operation of a switch having contacts D1, D2 interrupts the discharge circuit and completes a demagnetizing circuit 6, D1, E, A2, 8 to effect release of the load, the contacts D2 are provided with a blowout coil S disposed in the demagnetizing circuit (so that the coil does not have to carry the normal energizing current of the magnet) and a time delay relay is provided for operating the contacts D1, D2 a predetermined time after the closing of the discharge circuit.

SWITCHING CONFIGURATION FOR THE CURRENT SUPPLY OF AN INDUCTIVE CONSUMER

DEVICE FOR ENERGY TRANSMISSION MECHANICAL OPERATION, IN PARTICULAR FOR THE CONTROLLING THE BRAKE PRESSURE THE BRAKE

DIGITALHYDRAULISCHE DRUCKREGELVORRICHTUNG UND HERSTELLUNGSVERFAHREN FÜR EINE DIGITALHYDRAULISCHE DRUCKREGELVORRICHTUNG

The utility model relates to a digit hydraulic pressure pressure adjustment assembly, it includes: PI adjusting device, strengthen the device for for in the valve at least one of them provide the overvoltage temporarily, with the manipulation speed that improves the valve, and connecting device, at least, have and be used for inputing mains voltage, fluid rated pressure parameter, the actual ressure measurement value of fluid rated flow parameter and fluid and be used for exporting the connecting portion on every valve with control parameter, wherein, adjusting device, it sets up on a common constitutional unit to strengthen device and connecting device, and this common constitutional unit can directly be connected to the valve through the linkage unit and organize, and the output based on common constitutional unit, pressure adjustment assembly can move in the normal jar control operation mode of being adjusted by adjusting device, and can move in strengthening fast switch operational ...

SINGLE SOLENOID VALVE, FOR EXAMPLE IMPACT VALVE FOR A PRESSURE SURGE INJECTION ARRANGEMENT OF FUEL IN A MOTORCAR ENGINE

Magnetic latching solenoid valve

A latching valve has a valve body defining a fluid chamber and supply, delivery, and exhaust ports. A solenoid within the chamber includes a pole piece defining a fluid passage between the chamber and exhaust port and having one end facing the exhaust port and another end defining a first valve seat. A coil is disposed about the pole piece. A housing has a portion radially outward of the coil and portions extending radially inwardly on opposite sides of the coil radially aligned with the pole piece and an armature. The armature has one end configured for engagement with the first valve seat and another end configured for engagement with a second valve seat formed in the valve body between the fluid chamber and supply port. A return spring biases the armature towards the second valve seat. A magnet ring is disposed about the armature in contact with the housing.

Electrically excited load full voltage actuation reduced voltage sustaining driving circuit

CURRENT PULSE CIRCUIT FOR FERRITE CORE MEMORIES

Improved electric gun driver

SERIES-PARALLEL ELECTRICAL CIRCUIT

CONTROLLED CURRENT SOLENOID DRIVER CIRCUIT

CONTROLLED CURRENT SOLENOID DRIVER CIRCUIT A solenoid driver circuit for a solenoid-operated fluid dispenser in which a valve is operable to dispense a fluid under the control of the solenoid. The driver circuit receives externally applied turn-on and turn-off signals and energizes the solenoid in response to these signals. The driver circuit is responsive to a turn-on signal to couple a pull-in voltage across the solenoid to pull in a solenoid valve armature. The driver circuit is also operable to sense the level of current in the solenoid. When the solenoid current reaches a preset peak current level, the pull-in voltage is removed from the solenoid and replaced by a hold-in voltage. When the hold-in voltage is applied to the solenoid, the driver circuit is operable to control the level of the hold-in voltage in order to maintain a preselected hold-in current in the solenoid. The driver circuit controls the solenoid current so that it makes a gradual transition from the peak solenoid ...

CONTROLLED CURRENT SOLENOID DRIVER CIRCUIT

Anordnung zur Betätigung von Lastmagneten.

SCHALTUNGSANORDNUNG MIT ZWEI STROMKREISEN ZUR ERZEUGUNG VON MAGNETISIERUNGSSTROMIMPULSEN MIT STEILEN FLANKEN BEI NIEDRIGEM LEISTUNGSVERBRAUCH.

Circuit d'alimentation d'une bobine de self

Gleichstrombetriebener Elektromagnet für die Auswahl der Nadeln einer Rundstrickmaschine

Schaltungsanordnung zur Schnellerregung eines gleichstrombetriebenen Elektromagneten

Dispositif d'alimentation d'une bobine de self avec un courant sensiblement constant

Schaltungsanordnung eines Elektrohubmagneten

Dispositif de commande d'un électro-aimant

Steuervorrichtung für eine elektromagnetische Kupplung

Elektromagnetisches Schaltgerät

The electromagnetic linear actuator

Apparatus for and method of controlling operation of solenoid-operated valve

GROUPEMENT TRES COMPACT D'EFFECTEURS ELECTROMAGNETIQUES, NOTAMMENT D'ELECTRO-AIMANTS

L'invention concerne un groupement très compact d'effecteurs électromagnétiques. Un tel groupement est formé par un empilement alterné de noyaux magnétiques, 1, à plusieurs branches 1a, 1b, 1c, et de séparateurs amagnétiques 2. Ces bobines d'excitation 5b, 5c et 5a sont montées sur les branches d'ordre impair, notamment les branches extrêmes 1b, 1c, d'un noyau sur deux et sur les branches extrêmes 1b, 1c, d'un noyau sur deux et sur les branches d'ordre pair, notamment la branche médiane 1a, des autres noyaux. Chaque bobine 5a ou 5b et 5c de chaque noyau 1 est dimensionnée de manière à occuper pratiquement tout l'intervalle entre les branches correspondantes dépourvues de bobines, des deux noyaux les plus voisins. L'invention est par exemple, applicable à la réalisation de rangées d'électro-aimants puissants, au pas de 12 mm, pour la commande électromécanique de métiers à tisser ...

ELECTROMAGNETIC JACK HAS HIGH SPEED

DISPOSITIF ECONOMISEUR DE COURANT POUR ELECTRO-AIMANT ALIMENTE PAR UN PONT REDRESSEUR A DOUBLE ALTERNANCE

DISPOSITIF ECONOMISEUR DE COURANT POUR ELECTRO-AIMANT ALIMENTE A PARTIR D'UNE SOURCE DE TENSION ALTERNATIVE PAR L'INTERMEDIAIRE D'UN REDRESSEUR A DOUBLE ALTERNANCE 3, CARACTERISE EN CE QU'IL COMPORTE, CONNECTE DANS UNE BRANCHE DU REDRESSEUR A DOUBLE ALTERNANCE, UN INTERRUPTEUR 8 ACTIONNE LORSQUE LE CIRCUIT MAGNETIQUE 2 DE L'ELECTRO-AIMANT ATTEINT UN DEGRE DE SATURATION PREDETERMINE OU LORSQU'UN DETECTEUR DE DEPLACEMENT DE L'ARMATURE MOBILE INDIQUE UNE POSITION REQUISE.

CONTROL CIRCUIT FOR THE EXCITING COIL OF AN ELECTROMAGNET

Typewriter cryptographic with solenoids

Electromagnetic stepping device control - has distributor, memories, drive circuits and position detectors

Patent FR2087118A5

ELECTROMAGNETIC SLUICE GATE For example Of IMPACT FOR a SYSTEM Of FUEL INJECTION PER EFFECT OF WATER HAMMER IN an ENGINE OF VEHICLE

FEEDING CIRCUIT Of a REEL FOR ELECTROMAGNET

Circuit d'alimentation d'une bobine pour électro-aimant munie d'un unique enroulement (11) comprenant une source d'alimentation de basse tension continue (20), une source d'alimentation de haute tension alternative (30), montées toutes deux aux bornes de l'enroulement (11), et un dispositif de commutation (40) monté en série avec la source de haute tension (30) et apte à assurer ou à bloquer l'alimentation de l'enroulement (11) en haute tension, caractérisé en ce que le dispositif de commutation (40) comprend un thyristor (42) monté entre la source à haute tension (30) et l'enroulement (11), et un circuit de commande (43) du thyristor (42) relié à sa gâchette (G) qui permet sa mise en conduction lors de la délivrance par la source à haute tension (30) d'une alternance positive d'une onde de tension. Supply circuit for a coil for an electromagnet provided with a single winding (11) comprising a DC low voltage supply source (20), an AC high voltage supply source (30), all mounted two at the terminals of the winding (11), and a switching device (40) mounted in series with the high voltage source (30) and capable of ensuring or blocking the supply of the winding (11) at high voltage, characterized in that the switching device (40) comprises a thyristor (42) mounted between the high voltage source (30) and the winding (11), and a control circuit (43) of the thyristor (42) connected to its trigger (G) which allows its conduction during the delivery by the high voltage source (30) of a positive alternation of a voltage wave.

CONTROL CIRCUIT OF SOLENOID VALVE

The present invention relates to a control circuit of a solenoid valve which comprises: an inductor; and an internal resistance serially connected to the inductor, and whose one side is connected to a positive terminal of power supply. According to the present invention, the control circuit of the solenoid valve comprises: a first MOSFET whose drain is serially connected to the other side of the solenoid valve and whose source is connected to a negative terminal of the power supply; a diode whose cathode is connected to a positive terminal of the power supply; a second MOSFET whose drain is connected to the other side of the solenoid valve and whose source is connected to an anode of the diode; a first resistance whose one side is connected to a first node in between the other side of the solenoid valve and the first MOSFET and whose the other side is connected to a second node in between the anode of the diode and the second MOSFET; and a capacitor whose one side is connected to a positive ...

DISPOSITIF DE PILOTAGE MAGNETIQUE A DEUX ETAGES

ELECTRONIC CONTROL CIRCUIT

The invention relates to an electronic control unit for controlling an electromagnetic valve having an armature, in particular for a heating and/or air conditioning installation in a motor vehicle. The circuit has an electronic switch element (8) which is mounted in a row with the valve coil. Said switch element (8) is characterized in that it controls the valve voltage (29) (or valve current (44)) at the coil (12) in such a way that, when the valve is switched in, the valve voltage (29) reaches a first value (U1). The valve voltage (29) is then brought back to a second value (U2) which is less than the first value (U1). The valve voltage (29) then takes on a third value (N) which is greater than the second value (U2) and represents a withstand voltage for maintaining the armature (13) in its switch-on position.

Systems and methods for detecting solenoid armature movement

A method for detecting actuation of an armature associated with a solenoid includes providing a voltage potential to a solenoid coil associated with the solenoid. The method also includes measuring a current flowing through the solenoid coil. The method further includes switching the voltage potential off when the measured current reaches a predetermined maximum value. The method also includes switching the voltage potential on when the measured current reaches a predetermined minimum value. The method further includes measuring a time period between pulses associated with the switching on and off of the voltage potential. The method also includes comparing the measured time period between pulses with predetermined data indicative of an inductance growth level associated with the coil. The method further includes determining, based on the comparison, a pull-in time of an armature associated with the solenoid.

TORSIONAL STEPPING MOTOR AND EXCITER APPARATUS THEREFOR

A stepping or indexing motor including plural electrical-to-mechanical energy transducer devices and a torsionally resilient coupling member for connecting transducer rotor members and for storing rotor member mechanical energy between rotor member movements; the torsionally resilient coupling member also providing starting torque for the stepping motor, and a means for separately driving the inertia component and the friction component of the stepping motor load; the torsionally resilient coupling member also providing a means for achieving high torque-to-inertia and torque-to-motor volume ratios in the motor. In one embodiment a transducer device takes the form of a rotor, a stator, and a winding carried at each end of the coupling member, with the output torque at a motor shaft being derived both from an adjacent transducer device and from energy stored in the torsionally resilient coupling member during a previous distorting of the coupling member; the alternate sequential energizing ...

Circuit for reducing the power consumption when driving a relay

A circuit for reducing a power consumption when driving a relay, the circuit includes a first input, a second input, a timing element, a longitudinal control having a Zener diode and a transistor, a first output, and a second output. The first and second inputs are configured to input an input voltage and the first and second outputs are configured for outputting an output voltage for driving the relay. The Zener diode is configured, when the input voltage exceeds a breakdown voltage of the Zener diode, to generate a voltage source, which is connected to the control input of the transistor via a diode and to provide a control voltage that is stabilized and reduced in level compared with the input voltage. The control input is connected to the first input via a timing element.

A power supply circuit for an electromagnet

PLUNGER DRIVE CIRCUIT

PURPOSE: To switch voltages applied to a solenoid with a single switch, by connecting a parallel circuit which consists of a switching element, a capacitor and a resistor to a plunger drive circuit, and connecting higher and lower voltage sources to both terminals of the parallel circuit. CONSTITUTION: A plunger drive circuit turns on a switch Q connected in series with a solenoid 2 at the start of suction. The higher voltage is applied to one terminal of a series circuit consisting of a solenoid 2 and a switch Q via a parallel circuit consisting of a capacitor C and a resistor R. Next, the switch Q is turned on, and current flows through the capacitor C, the solenoid 2 and the switch Q while the higher voltage is applied. The lower voltage is applied to the other terminal of series circuit, after voltage at one terminal of series circuit drops lower due to charging of the capacitor C. Consequently, the changeable voltage application with a single switch makes the constitution low-priced ...

УСТРОЙСТВО ФОРСИРОВАННОГО УПРАВЛЕНИЯ ЭЛЕКТРОМАГНИТОМ.

FIELD: electricity. SUBSTANCE: device of the forced electromagnet control provides an inrush current, when connected to the power terminals and switched to the holding current with a self-resetting fuse. EFFECT: increasing the reliability, simplifying the design and reducing the device cost. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 647 122 C2 (51) МПК H01F 7/18 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК H01F 7/1805 (2006.01) (21)(22) Заявка: 2012147875, 09.11.2012 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Быков Андрей Анатольевич (RU) Дата регистрации: 14.03.2018 (56) Список документов, цитированных в отчете о поиске: RU 2249271 C2, 27.03.2005. RU (43) Дата публикации заявки: 20.05.2014 Бюл. № 14 2153726 С1, 27.07.2000. SU 1372379 А1, 07.02.1988. SU 773778 А, 23.10.1980. PL 89830 A, 30.07.1977. (45) Опубликовано: 14.03.2018 Бюл. № 8 R U (54) УСТРОЙСТВО ФОРСИРОВАННОГО УПРАВЛЕНИЯ ЭЛЕКТРОМАГНИТОМ. (57) Реферат: Изобретение относится к электротехнике и является повышение надежности, упрощение может быть использовано для включения конструкции и уменьшение стоимости устройства. исполнительных электромагнитных устройств Устройство форсированного управления систем автоматики в нефтедобывающей, электромагнитом обеспечивает пусковой ток при энергетической, автомобильной подключении к клеммам питания и переключение промышленности, в частности в приводах на ток удержания самовосстанавливающимся электромагнитных клапанов постоянного и предохранителем. переменного тока. Техническим результатом Стр.: 1 C 2 C 2 Адрес для переписки: 141074, Московская обл., г. Королев, ул. Белинского, 6, кв.2, А.А. Быкову 2 6 4 7 1 2 2 Приоритет(ы): (22) Дата подачи заявки: 09.11.2012 2 6 4 7 1 2 2 R U 09.11.2012 (72) Автор(ы): Быков Андрей Анатольевич (RU) RUSSIAN FEDERATION (19) RU (11) (13) 2 647 122 C2 (51) Int. Cl. H01F 7/18 (2006.01) FEDERAL SERVICE FOR INTELLECTUAL PROPERTY (12) ABSTRACT OF ...

Steuerschaltung fuer elektrische Antriebe

Schaltungsanordnung zur Schnellerregung von gleichstrombetriebenen Elektromagneten

Electromagnetic linear actuator i.e. spring-loaded actuator, for actuating e.g. valve, has stator, armature and exciter magnetic field producing unit formed in manner that holding force acts as closed gap between stator and armature

The actuator has an armature (20) partly made of ferromagnetic material, where the armature is supported at a stator (10) such that the armature is moved relative the stator along a longitudinal axis (1). An armature coil (A) is connected with the armature such that force acting on the armature is transferable. An exciter magnetic field producing unit is partially fed through the stator and the armature, where the stator, the armature and the exciter magnetic field producing unit are formed in a manner that a holding force acts as a closed gap between the stator and the armature.

Supply circuit for supplying electric load, comprises switched boost-converter, which has coil and switch, where coil current is alternatively switched against reference potential

The supply circuit comprises a switched boost-converter, which has coils (5a,5b,5c) and switches (7a,7b,7c). The coil current is alternatively switched against a reference potential (GND). The coil is connected with a supply connection (15) of an electric load (4). The coil is used as component in a net-attached electromechanical unit. An independent claim is included for a coil for electromechanical unit.

Control circuit for solenoid valve actuators

The coil of the electromagnet 11 is coupled in series with a semiconductor switch in the form of an MOSFET device 10 and a current measuring shunt resistor 12. A parallel stage has an LED 13 and a diode 14. The take off voltage U12 from the shunt resistor is received by a difference amplifier 16 with the output applied to a comparator 18 for comparison with a saw tooth waveform from a generator 19. A reference signal is applied to the difference amplifier This forms a pulse width modulating circuit 15 to control the electro magnetic actuator.

Kraftstoffzufuhrvorrichtung

Eine Kraftstoffzufuhrvorrichtung umfasst eine bewegbare Einheit (64, 68), eine Spule (65), einen Ansteuerschaltungsabschnitt (104), und einen Ansteuersteuerabschnitt (103). Der Ansteuerschaltungsabschnitt (104) führt der Spule (65) mit einem elektrischen Ansteuerstrom mit einem ersten Wert (I1) derart Energie zu, dass die bewegbare Einheit (64, 68) von einer Öffnungsposition zu einer Schließposition versetzt wird. Der Ansteuerschaltungsabschnitt (104) führt der Spule (65) mit dem elektrischen Ansteuerstrom mit einem zweiten Wert (I2), der kleiner als der erste Wert (I1) ist, derart Energie zu, dass die bewegbare Einheit (64, 68) an der Schließposition gehalten wird. Der Ansteuersteuerabschnitt (103) steuert den Ansteuerschaltungsabschnitt (104), um den elektrischen Ansteuerstrom von dem ersten Wert (I1) auf den zweiten Wert (I2) zu ändern, während die bewegbare Einheit (64, 68) in Richtung der Schließposition versetzt wird, auf der Grundlage einer Energiezufuhr zu der Spule mit dem elektrischen ...

SYSTEM UND VERFAHREN ZUM BETRIEB EINER DURCH HOCHGESCHWINDIGKEITS-SOLENOID BETÄTIGTENVORRICHTUNG

STEUERSCHALTUNG FÜR INDUKTIVE LAST

VORRICHTUNG ZUR STEUERUNG EINES ELEKTROMAGNETISCHEN VENTILS

Schaltungsvorrichtung

Process and device for the rapid excitation of the magnetic field of electromagnetic apparatus

... 1,097,209. Central systems for electromagnetic devices. W. BINDER, [trading as BINDER MAGNETE KOMM GES.]. Dec. 3, 1965 [Dec. 21, 1964; April 5, 1965], No. 51467/65. Heading H2H. A circuit for the rapid energization of an electromagnet, such as a lifting magnet, comprises means whereby the magnet is energized initially at a high value and subsequently the energization is reduced to a lower, normal value. An electromagnet 51 is energized from a three-phase transformer 10 initially by way of four thyristors 21-24 and subsequently by way of thyristors 21, 22 only, the secondary windings I, II, III being connected so as to produce voltages in quadrature and the winding of phase I having a larger number of turns than the windings of phases II, III which have equal numbers of turns. The firing, potentials for the rectifiers 21-24 are produced by the circuit shown in Fig. 4. A high frequency potential 120 is developed from the threephase supply by means of a relaxation oscillator and this potential ...

Fluid injector systems

Method and device for controlling a solenoid actuator

DEVICE FOR PERFORMING THE METHOD METHOD OF PROGRAMMED CURRENT CONTROL FOR A SOLENOID AND A

... 1479343 Transistor solenoid actuating circuits; amplifiers REGIE NATIONALE DES USINES RENAULT 3 Sept 1974 [5 Sept 1973] 38562/74 Heading H3T A circuit for energizing a solenoid comprises a voltage and current amplifier feeding the solenoid and a switching circuit for selectively feeding three reference voltages to the input corresponding respectively to a stand-by current, a peak energizing current and a holding current. The voltage being raised from its stand-by level to its peak energizing level linearly by integrating a fourth reference voltage. The solenoid 9, e.g. of a fuel injector of an internal combustion engine, is fed by a common-emitter Darlington pair 6, 7 which is itself fed by an inverted Darlington pair 1, 2. A voltage U 4 proportional to the solenoid current is applied to the emitter of transistor 1 so that differences between a control voltage U e and U 4 cause a change in the collector current of 6 and 7 to keep the difference very small. During stand-by there is no input ...

Fluid injector systems

Switching configuration for the controlling of electromagnetic control members

SCHALTUNGSANORDNUNG ZUR STROMVERSORGUNG EINES INDUKTIVEN VERBRAUCHERS

COIL ARRANGEMENT WITH A SPULENTRÄGER OF AN ELECTROMAGNETIC DRIVE

SWITCHING CIRCUIT FOR SOLENOIDS

Method and apparatus for improved relay control

Methods and apparatus provide for: at least one electromechanical relay including a coil and at least one pair of contacts, the contacts transitioning between a de-energized state and an energized state in response to current through the coil; a microcontroller having at least one tri-state output operating to produce ON, OFF, and FLOAT states; and a driver circuit operating, in conjunction with the tri-state output of the microcontroller, to control the current through the coil of the relay such that: (i) a transition of the tri-state output from OFF to FLOAT maintains the contacts of the relay in their de-energized state through the transition, and (ii) a transition of the tri-state output from ON to FLOAT maintains the contacts of the relay in their energized state through the transition.

A two-wire controlling and monitoring system for in particular irrigation of localized areas of soil

The present invention relates to a method for providing watering or non-watering of a specific area of soil through a first plurality of irrigation valves (42). Specific irrigation parameters are measured at the specific area of soil through a second plurality of field sensors (54). A controller unit (30) is interconnected to a third plurality of control units (18). Each control unit is connected to a specific irrigation valve and/or a specific field sensor. A type declaration providing communication under a second communication protocol is transmitted from the controller unit to the third plurality of control units using a first communications protocol. A second set of instructions are transmitted from the controller unit to the third plurality of control units using a second communications protocol. A first set of instructions are transmitted from the controller unit to the third plurality of control units using the first communications protocol.

ENERGY TRANSMISSION OF A MECHANICAL CONTROL, ESPECIALLY FOR CONTROLLING THE BRAKING PRESSURE OF A BRAKE SYSTEM

... 14 DISPOSITIF DE TRANSMISSION D'ENERGIE DE COMMANDE MECANIQUE, NOTAMMENT POUR LE CONTROLE DE LA PRESSION DE FREINAGE DANS UN FREIN Le dispositif selon l'invention comporte au moins un actionneur rotatif (11) équipé d'un ressort de rappel (14) et une bielle (12) reliée à l'actionneur rotatif pour transmettre un mouvement linéaire à un organe mécanique (1). L'actionneur rotatif (11) est mû par un électro-aimant rotatif dont la position angulaire est commandée par un courant (I) impulsionnel et périodique. Le dispositif comporte en outre des moyens de suppression de l'énergie magnétisante stockée dans l'électro-aimant. Figure 2a.

Fuel supply apparatus

A fuel supply apparatus includes a movable unit, a coil, a drive circuit portion, and a drive control portion. The drive circuit portion energizes the coil with a drive electric current of a first value such that the movable unit is displaced from an opening-side position to a closing-side position. The drive circuit portion energizes the coil with the drive electric current of a second value that is smaller than the first value such that the movable unit is held at the closing-side position. The drive control portion controls the drive circuit portion to change the drive electric current from the first value to the second value while the movable unit is being displaced toward the closing-side position based on energization of the coil with the drive electric current of the first value.

method and device for controlling actuator

The invention relates to a method and a device for controlling an actuator, especially a method for controlling an actuator within an on-board power system which provides different operating voltages or time and temporal on-board power voltage changes. The actuator or actuators are controlled with different pulse-width modulated control signals (71), whereby the pulse-width and the cycle duration of the control signals (71) can be adjusted independent of each other and are matched based on the currently applied on-board power voltage.

DEVICE FOR PERFORMING THE METHOD METHOD OF PROGRAMMED CURRENT CONTROL FOR A SOLENOID AND A

ELECTROMAGNETIC SLUICE GATE IN PARTICULAR Of IMPACT FOR a SYSTEM Of FUEL INJECTION PER EFFECT OF WATER HAMMER IN an ENGINE OF VEHICLE

DISPOSITIF ELECTROMAGNETIQUE DE COMMANDE

DISPOSITIF ELECTROMAGNETIQUE DE COMMANDE D'UN ORGANE A DEUX POSITIONS. IL COMPORTE UN BOBINAGE D'ATTRACTION D'UN NOYAU PLONGEUR RELIE A L'ORGANE A MANOEUVRER, UN SECOND BOBINAGE ASSURANT EXCLUSIVEMENT LE MAINTIEN DE CE NOYAU DANS UNE POSITION, ET UN ELEMENT INTERROMPANT AUTOMATIQUEMENT L'ALIMENTATION DU BOBINAGE D'ATTRACTION LORSQUE LE NOYAU EST MAINTENU EN POSITION PAR LE SECOND BOBINAGE. REALISATION D'ELECTRO-AIMANTS POUR ACTIONNER DES ORGANES MECANIQUES A DEUX POSITIONS TELS QU'UNE VANNE, ETC.

CONTROL DEVICE OF the FOOD WHILE CARBURIZING FOR SYSTEM Of INJECTION OF INTERNAL COMBUSTION ENGINE

Cette invention concerne un dispositif de commande de l'alimentation en carburant. Ce dispositif présente un solénoïde dont le noyau est relié par une tringlerie réglable à un levier commandant l'alimentation en carburant. Ce noyau peut être amené en position rentrée au moyen de deux enroulements, dont l'un est mis automatiquement hors circuit quand le noyau est complètement rentré. Un agencement de ce type est utilisable pour les systèmes d'injection en carburant de moteurs à combustion interne.

Solenoid valve activating circuit for motor vehicle, has electrical supply device generating current flowing through electromagnetic coil and regulated at set value, and conversion devices for reducing the set current value

L'invention concerne une configuration de circuit pour l'activation d'une électrovanne bistable, dans laquelle une bobine d'électroaimant doit être alimentée par une impulsion électrique, pour commuter l'électrovanne d'un premier état stable de vanne dans un second état stable de vanne, comprenant une source de tension d'alimentation pour la mise à disposition d'une tension d'alimentation, un dispositif d'alimentation électrique alimenté par la source de tension d'alimentation et activable pour la durée de l'impulsion électrique par un signal d'activation fourni, pour la génération d'un courant de bobine (i) s'écoulant à travers la bobine d'électroaimant, le courant de bobine (i) étant réglé à une valeur de consigne, des moyens de conversion étant prévus pour diminuer la valeur de consigne pour le courant de bobine au cours de l'impulsion électrique. L'invention concerne par ailleurs un procédé d'activation correspondant. Ceci permet de réduire avantageusement la dissipation de puissance ...

System and method for controlling operation of a dosing unit of a fluid dosing system

The invention relates to a method for controlling a dosing unit (237) of a fluid dosing system comprising an electrically controlled valve unit having a coil (292) arranged for shifting the valve unit between an open state (OS) and a closed state (CS) by moving a sealing member (291) between a first position (P1) and a second position (P2), the method comprising the steps of:- applying (s410) a peak voltage (U1) over the coil (292);- continuously determining (s420) a first energy state (E1) of the coil;- comparing (s430) the first energy state (E1) with a second energy state (E2) of the coil corresponding to a hold voltage (U2); and- shifting (s450) the applied peak voltage (U1) to the hold voltage (U2) at a point of time (tx) at which the first energy state (E1) has reached the second energy state (E2). The method may comprise the step of determining (s440) that the valve unit is in an open state (OS) prior to shifting the applied peak voltage (U1) to the hold voltage (U2).The invention ...

ELECTRONICALLY-CONTROLLED SOLENOID

A solenoid assembly includes a switching regulator and a solenoid electrically connected to an output signal connection of the switching regulator, the solenoid electrically actuable between an extended position and a pull-in position. The assembly includes an output level switch electrically connected to an input switching connection and the output signal connection of the switching regulator, and a timer connected to an output of the switching regulator and an input of the output level switch. The timer generates a signal at the output of the output level switch, thereby causing the output level switch to generate a hold signal at the input switching connection of the switching regulator after sensing a signal at the output signal connection. Upon receiving the hold signal at the input switching connection, the switching regulator causes an output signal on the output voltage connection to switch from a switching level to a hold level.

TORSIONAL STEPPING MOTOR AND EXCITER APPARATUS THEREFOR

Method for controlling the motion of an armature of an electromagnetic actuator

Following pull-in there is a braking phase in which a voltage is applied to a coil (4a, 4b) up to impact of the armature (4d) upon it. Timing and cyclic course of the voltage applied, are controlled as a function of the desired position (20) of the armature over time.

Steuerschaltung für induktive Last

Controlling armature motion in electromagnetic actuator used to operate internal combustion engine valve

During initial pull-in, the voltage (U) is reduced to zero. Just before impact of the armature (4d) on either coil, (4a, 4b), the voltage is reapplied for braking effect. Switching instants are time-optimized.

SCHALTUNG ZUM ZUFUEHREN EINES STROMES VON EINER STROMQUELLE ZU EINER INDUKTIVEN BELASTUNG

Electrical drive circuit

... 1,028,124. Transistor switching circuits. NATIONAL CASH REGISTER CO. Jan. 9, 1964 [Feb. 13, 1963], No. 1035/64. Heading H3T. [Also in Division F2] A solenoid, particularly for controlling a brake or clutch, is connected in series with a transistor having a load in the emitter circuit and means for turning off the transistor when the voltage across the emitter load has reached a predetermined level, an alternative path being provided for feeding a relatively low-holding current to the solenoid. Fig. 1 shows a system for controlling a brake and a pinch roller in a tape recorder. When positive and negative voltages are respectively fed to terminals 16, 17 a bi-stable circuit 13 is set to such a condition as to turn on a transistor 43 (Fig. 2) in the switching circuit 15 (Fig. 1) and energize the brake solenoid 12. When the voltage across the emitter resistor 44 has risen to a predetermined level, it is passed by a Zener diode 45 and an OR circuit 14 to reset the bi-stable circuit 13, which ...

Method and apparatus for fuel injection control

Disclosed is a method of controlling a fuel injector 20 of an internal combustion engine 10 during a fuel injection cycle comprising: powering the fuel injector using pulse width modulation at a first switching frequency during a first phase of the fuel injection cycle; powering the fuel injector using pulse width modulation at a second switching frequency that is different to the first switching frequency during a second phase of the fuel injection cycle and powering the fuel injector using pulse width modulation at a third switching frequency during a third phase of the fuel injection cycle. Also disclosed is a fuel injection apparatus for an internal combustion engine.

Method and device for controlling a solenoid actuator

A circuit assembly, or a method of driving a solenoid actuator, comprises: means of connecting a voltage signal 20 to an actuator to provide different current levels during different operational phases 13, 14; means of changing between phases of closed-loop current controlled operation, at different current levels 13, 14, by decreasing the current by applying a negative voltage supply signal to the actuator for a given time period 16 and where the time period 16 is controlled to accurately and efficiently move between the required different operational current levels IHOLD0, IHOLD1. A smallest time increment level may be established and used in the adjustment to the time period 16 for which the negative voltage signal is applied. The deviation level associated with a sensed current undershoot or overshoot condition may be used to proportionally increase or decrease the said negative voltage signal time period 16. The closed-loop current control phases may comprise pulse-width modulation ...

Method of controlling a solenoid valve

IMPROVEMENTS IN OR RELATING TO ELECTRICAL CONTACTORS

... 1283186 Switching systems CUTLERHAMMER INTERNATIONAL FINANCE Inc 19 April 1971 [26 Feb 1970] 24313/71 Heading H2H [Also in Division H1] In order to reduce the release time of a contactor 22 fed from an A.C. supply through a full wave rectifier bridge 12 the contactor coil or coils 22a, 22b, are connected in series with contacts 20b and coil 20a of a low impedance relay which has its other coil 20c connected across the series circuit (20a, 20b, 22a, 22b) and between the rectifier bridge output terminals 12a, 12b. When a series switch 18 is opened, to interrupt the supply, the low impedance relay contacss 206 open quickly and the inductive energy stored in coils 20a, 22a, and 22b is rapidly dissipated in arcing at contacts 20b ensuring quick opening of the contacts of contactor 22.

Low power gas shut-off valve solenoid electronic driver circuit for horse box, caravan, camper van, leisure vehicle and leisure boat applications

Transistor switching arrangement for electromagnets

SWITCHING CONFIGURATION FOR THE CURRENT SUPPLY OF AN INDUCTIVE CONSUMER

CONTROL SYSTEM FOR SPOOL VALVE SOLENOID

Method and apparatus for improved relay control

Methods and apparatus provide for: at least one electromechanical relay including a coil and at least one pair of contacts, the contacts transitioning between a de-energized state and an energized state in response to current through the coil; a microcontroller having at least one tri-state output operating to produce ON, OFF, and FLOAT states; and a driver circuit operating, in conjunction with the tri-state output of the microcontroller, to control the current through the coil of the relay such that: (i) a transition of the tri-state output from OFF to FLOAT maintains the contacts of the relay in their de-energized state through the transition, and (ii) a transition of the tri-state output from ON to FLOAT maintains the contacts of the relay in their energized state through the transition.

Configurable solenoid actuation method and apparatus

A configurable, connectorized method and apparatus for driving a solenoid coil reduces energy consumption and heating of the solenoid coil, allows detection of the solenoid state, and simplifies connections to the solenoid.

Electromagnetic linear actuator

An electromagnetic linear actuator has a frame (stator) and an armature each at least partially formed of soft magnetic material. The armature can be moved relative to the frame along a longitudinal axis, they form a gap therebetween in an open position and lie against each other in a closed position with the gap closed. A first armature coil is connected to the armature so that a force acting on the first armature coil is transferred to the armature. An excitation magnetic field is generated and guided at least partially by the frame and the armature and acts with a force on the first armature coil when current flows through the first armature coil, to close the gap. The frame, the armature, and the excitation magnetic field are configured so that a retaining force takes effect when the gap between the frame and the armature is closed.

ACTUATOR MODULE, SYSTEM FOR LOCKING- UNLOCKING A DOOR OF A HOUSEHOLD APPLIANCE AND RELATIVE OPERATING METHOD

An actuator module comprises an actuating unit comprising a solenoid which is capable, when excited, of generating an electromagnetic field, and a core movable due to the electromagnetic field generated by the solenoid with a first end and a second end so as to be able to assume a resting position and an operating position, and which is magnetic and/or able to be magnetized. The actuating unit can be controlled by activation signals and protection signals, the activation signals energizing the solenoid so as to generate a magnetic field such as to move and hold the movable core from a resting position to the operating position, and the protection signals exciting the solenoid so as to generate a magnetic field such as to return the movable core to and hold the moveable core in the resting position. The present invention concerns a locking-unlocking system and method for protecting the system. 1113. An actuator module ( , ′) comprising an actuating unit () , said actuating unit comprising{'b': '31', 'a solenoid (), capable, when excited, of generating an electromagnetic field, and'}{'b': 33', '31', '33', '33', '33', '33, 'a core (), movable due to the electromagnetic field generated by said solenoid (), said movable core () being having a first (′) and a second (″) ends, said movable core () being able to assume a resting position and an operating position,'}{'b': '33', 'wherein said movable core () is magnetic and/or magnetizable, and'}{'b': 3', '31', '33', '31', '33, 'said actuating unit () can be controlled by activation signals and protection signals, said activation signals being capable of energizing said solenoid () so as to generate a magnetic field such as to move and hold said movable core () from said resting position to said operating position, and said protection signals being capable of exciting said solenoid () so as to generate a magnetic field such as to return and hold said movable core () in said resting position.'}211. The actuator module ( claim ...

METHOD AND SYSTEM FOR MOVING MATERIAL

A method and system for moving magnetic material includes an electromagnet wherein known problems associated with DC power circuit interruptions are substantially reduced. The system includes a generator coupled to an electromagnet, the generator being powered by a power supply through a first set of contactors which are configured to open and close a first circuit between the power source and the generator coupled to the magnet to start and stop a lifting sequence, wherein the first circuit includes a first bridge rectifier, a reactance element, and a first resistance element. The system includes a second set of contactors configured to open and close a second circuit between the power source and the generator coupled to the magnet to start and stop a dropping sequence, wherein the second circuit includes a second bridge rectifier and at least one pair of contactors for discharging power from the generator, the at least one pair of contactors being configured to open and close a discharge circuit between at least the reactance element and the generator. 1. A controller for moving magnetic material , the controller comprising:a first set of contactors capable of opening and closing a first circuit, the first circuit including a first bridge rectifier, a reactance element, and a resistance element all connected in series; anda second set of contactors capable of opening and closing a second circuit, the second circuit including a second bridge rectifier.2. The controller of wherein the second circuit includes the reactance element claim 1 , the reactance element being connected in series with the second bridge rectifier when the second circuit is closed.3. The controller of wherein the second circuit includes the resistance element claim 1 , the resistance element being connected in series with the second bridge rectifier when the second circuit is closed4. The controller of wherein the second circuit includes a second resistance element claim 1 , the second ...

Magnetic Latching Solenoid Valve

A latching valve has a valve body defining a fluid chamber and supply, delivery, and exhaust ports. A solenoid within the chamber includes a pole piece defining a fluid passage between the chamber and exhaust port and having one end facing the exhaust port and another end defining a first valve seat. A coil is disposed about the pole piece. A housing has a portion radially outward of the coil and portions extending radially inwardly on opposite sides of the coil radially aligned with the pole piece and an armature. The armature has one end configured for engagement with the first valve seat and another end configured for engagement with a second valve seat formed in the valve body between the fluid chamber and supply port. A return spring biases the armature towards the second valve seat. A magnet ring is disposed about the armature in contact with the housing. 1. A latching valve , comprising:a valve body defining a fluid chamber, a supply port in fluid communication with the fluid chamber and through which fluid is supplied to the fluid chamber, a delivery port in fluid communication with fluid chamber and through which fluid is delivered from the fluid chamber, and an exhaust port in fluid communication with the fluid chamber and an atmosphere and through which fluid is exhausted from the fluid chamber to the atmosphere; an annular pole piece defining a fluid passage extending along an axis between the fluid chamber and the exhaust port, the pole piece having a first end facing the exhaust port and a second end defining a first valve seat;', 'a coil disposed about the pole piece;', 'a housing having a first portion disposed radially outwardly of the coil, and second and third portions extending radially inwardly from the first portion and disposed on opposite sides of the coil, the third portion radially aligned with the pole piece;', 'an armature having a first end configured for engagement with the first valve seat and a second end configured for engagement ...

Assuring dropout of solenoid valve controlled by peak-and-hold driver

Systems and methods of controlling a solenoid coil in a solenoid valve provide a controller that allows a supervisory or leakage current to be used in a peak-and-hold driver. The controller introduces a delay time after detection of a dropout voltage that prevents the solenoid coil from being immediately re-energized in order to ensure proper dropout of the solenoid coil. The delay time imposes a wait period during which the controller takes no action with respect to the current in the solenoid coil, allowing the solenoid coil to deenergize and return the valve to its normally-open or normally-closed position. Such use of a delay time may be limited to instances where the controller has already gone through a power-up cycle such that the response time needed by the controller to energize the solenoid coil is minimized, thus reducing the valve startup time.

Electronic command and control device for an electromagnetic actuator and electromagnetic actuator thereof

Device for the command and control of the electric power supply of one or more windings of an electromagnetic actuator, comprising a plurality of electronic means configured to receive at the input either a direct current feeding voltage or alternatively an alternating current feeding voltage and to generate at the output a first digital command signal suitable for triggering an activation phase of the electromagnetic actuator in which at least one the one or more windings is powered, for a first predefined and adjustable time interval, with an activation current, a second digital command signal suitable for triggering a maintenance phase of the electromagnetic actuator in which the one or more windings are powered with a maintenance current having an intensity lower than the activation current, and a third digital command signal suitable for triggering a third phase of deactivation of the electromagnetic actuator in which the power supply of the one or more windings is interrupted for a second predefined and adjustable time interval.

Clamp Assembly including Permanent Magnets and Coils for Selectively Magnetizing and Demagnetizing the Magnets

A clamp assembly comprises a first clamp including a plurality of magnet devices. Each magnet device includes a permanent magnet and a coil surrounding the permanent magnet. The clamp assembly further comprises a controller for pulsing the coils to selectively magnetize and demagnetize the permanent magnets. 1. A method of clamping a stack , the method comprising:positioning permanent magnets against a first surface of the stack;placing a flux-conducting structure against a second surface of the stack; andapplying external magnetic field pulses to the permanent magnets to magnetize and demagnetize the permanent magnets.2. The method of claim 1 , wherein the permanent magnets are positioned about a process axis.3. The method of claim 1 , wherein pulse duration is on the order of milliseconds claim 1 , and clamping cycle is at least ten seconds.4. The method of claim 1 , wherein the flux-conducting structure includes a plate for providing a flux path.5. The method of claim 1 , wherein the flux-conducting structure includes a plurality of second magnet devices aligned with the permanent magnets.6. The method of claim 1 , wherein the permanent magnets are disposed in a robot end effector.7. The method of claim 6 , wherein applying external magnetic field pulses to the permanent magnets is performed selectively by a controller.8. The method of claim 6 , wherein positioning permanent magnets against a first surface of the stack is performed by at least one robot.9. The method of claim 1 , wherein applying external magnetic field pulses comprises applying a single external magnetic field pulse.10. The method of claim 1 , wherein applying external magnetic field pulses comprises applying at least two external magnetic field pulses.11. The method of further comprising modulating either magnitude or duration of the external magnetic field pulses during magnetization to alter a peak current attained by the pulse.12. The method of claim 1 , wherein applying external magnetic ...

SYSTEMS AND METHODS FOR MULTI-STABLE SOLENOID

The present disclosure provides a multi-stable solenoid with one or more magnetic damping rings. In general, the magnetic damping rings provide an increased damping force to an armature of the multi-stable solenoid to ensure efficient operation, reduce detent position overshoot, and reduce an impact force at end positions. 1. A solenoid , comprising:a wire coil;an armature including a permanent magnet, wherein the armature is moveable between two or more stable positions in response to selective energization of the wire coil;one or more magnetic dampers arranged along a travel path of the armature, wherein the one or more magnetic dampers are configured to generate a magnetic damping force in a direction that opposes movement of the armature.2. The solenoid of claim 1 , further comprising of a housing.3. The solenoid of claim 2 , wherein the wire coil is arranged within the housing.4. The solenoid of claim 3 , wherein the wire coil is formed from a single claim 3 , continuous coil that is separated into one or more wire coil bays that are axially separated from one another.5. The solenoid of claim 4 , wherein the housing includes one or more fingers that axially separate the one or more wire coil bays.6. The solenoid of claim 3 , wherein the wire coil comprises one or more individual wire coils axially separated from one another.7. The solenoid of claim 6 , wherein the housing includes one or more fingers that axially separate the one or more individual wire coils.8. The solenoid of claim 2 , wherein the housing is fabricated from a ferromagnetic material.9. The solenoid of claim 2 , wherein the one or more magnetic damping rings are at least partially arranged within the housing.10. The solenoid of claim 1 , wherein the one or more stable positions include a first end position claim 1 , a center detent position claim 1 , and a second end position.11. The solenoid of claim 10 , wherein the armature is stable in at least one of the first end position claim 10 , the ...

SOLENOID INCLUDING A DUAL COIL ARRANGEMENT TO CONTROL LEAKAGE FLUX

A solenoid includes a magnetic frame, a bobbin having a length, a hold coil, a pick up coil having a length, a fixed pole, a movable armature having a length, and a return spring biasing the armature away from the pole. The solenoid includes a pick up state when the armature and the pole are separated by a magnetic gap, and a holding state when the armature and the pole are proximate each other. The pick up coil is wound around the bobbin for a portion of the length of the bobbin and the hold coil is wound around the bobbin for a remaining portion of the length of the bobbin. The length of the pick up coil is about the same as the length of the armature and is less than the length of the bobbin. 1. A solenoid comprising:a magnetic frame;a bobbin having a length;a hold coil;a pick up coil having a length;a fixed pole;a movable armature having a length; anda return spring biasing the armature away from the pole;wherein said solenoid includes a pick up state when the armature and the pole are separated by a magnetic gap, and a holding state when the armature and the pole are proximate each other;wherein the pick up coil is wound around the bobbin for a portion of the length of the bobbin and the hold coil is wound around the bobbin for a remaining portion of the length of the bobbin; andwherein the length of the pick up coil is about the same as the length of the armature and is less than the length of the bobbin.2. The solenoid of wherein the pick up coil and the hold coil are wound around the bobbin in order to reduce leakage flux from the pole to the magnetic frame.3. The solenoid of wherein the pick up coil and the hold. coil are wound around the bobbin in order to reduce ampere-turns of each of said pick up coil and said hold coil and to reduce pick up voltage of said pick up coil.4. The solenoid of wherein the pick up coil and the hold coil are direct current coils.5. The solenoid of wherein claim 1 , in the pick up state claim 1 , only the pick up coil carries ...

MAGNETIC FIELD ADJUSTING METHOD, MAGNETIC FIELD ADJUSTING APPARATUS, AND MAGNETIC RESONANCE IMAGING APPARATUS

A magnetic field adjusting method according to an embodiment includes: acquiring, by using a measuring device, first data related to a static magnetic field while a static magnetic field magnet is generating the static magnetic field having magnetic field intensity lower than rated magnetic field intensity required by an imaging process performed by a magnetic resonance imaging apparatus; and calculating, by using processing circuitry, a positional arrangement of a shim member used for correcting uniformity of the static magnetic field on the basis of the first data. 1. A magnetic field adjusting method comprising:acquiring, by using a measuring device, first data related to a static magnetic field while a static magnetic field magnet is generating a static magnetic field having magnetic field intensity lower than rated magnetic field intensity required by an imaging process performed by a magnetic resonance imaging apparatus; andcalculating, by using processing circuitry, a positional arrangement of a shim member used for correcting uniformity of a static magnetic field on a basis of the first data.2. The magnetic field adjusting method according to claim 1 , wherein the first data is data that is related to a magnetic flux density.3. The magnetic field adjusting method according to claim 1 , wherein the positional arrangement of the shim member is calculated by the processing circuitry on a basis of second data claim 1 , the second data being calculated from the first data while using a magnetization curve of a substance contained in the shim member and the second data being related to a static magnetic field in a situation where the static magnetic field magnet is generating a rated-intensity static magnetic field.4. The magnetic field adjusting method according to claim 1 , whereinthe first data is data related to a first magnetic flux density in a situation where an electric current having a first current value is flowing through the static magnetic field ...

DETECTION OF PLUNGER MOVEMENT IN DC SOLENOIDS THROUGH CURRENT SENSE TECHNIQUE

An apparatus and method of detecting movement of a plunger of the solenoid includes detecting a peak (I) in a current signal applied to a coil of the solenoid. A predetermined threshold is added to the current signal applied to the coil of the solenoid to generate a level shifted signal. The level shifted signal and the peak signal are compared to detect movement of a plunger of the solenoid. 1. A method of detecting movement of a plunger of the solenoid comprising:{'sub': 'PEAK', 'detecting a peak (I) in a current signal applied to a coil of the solenoid;'}{'sub': 'VALLEY', 'detecting a valley in the current signal applied to the coil of the solenoid to generate a valley signal (I);'}adding a predetermined threshold to the current signal applied to the coil of the solenoid to generate a level shifted signal;comparing the level shifted signal and the peak signal to detect movement of a plunger of the solenoid.2. The method of wherein the threshold is related to an absolute value of the difference between Iand I.3. The method of within the threshold is determined by measuring characteristics of the solenoid.4. The method of wherein if the current signal does not have a dip at least equal to the predetermined threshold claim 1 , a fault signal is generated.5. The method of wherein if the current signal has a dip at least equal to the predetermined threshold claim 1 , current to the solenoid is reduced to its hold value.6. The method of wherein the threshold is added to a voltage representing coil current which is compared with an output of an active peak detector claim 5 , if the level shifted voltage matches the output of the active peak detector claim 5 , complete solenoid movement has been detected.7. The method of wherein a dip less than the threshold indicates an unacceptably slower plunger movement.8. In a system for operating a solenoid claim 4 , a circuit to detect complete movement of the plunger of the solenoid claim 4 , comprising:a device for measuring ...

AUTONOMOUS MODE CHANGE CIRCUIT FOR SOLENOID DRIVERS

Provided are embodiments for operating an autonomous mode change circuit for solenoid drivers. The embodiments include initiating an operation of a solenoid, and receiving a command to control the operation of the solenoid. The embodiments also include controlling, by a drive circuit, a switch coupled to the solenoid based at least in part on the command, and detecting at least one of a current or voltage of the solenoid, and subsequently controlling the operation of the solenoid based at least in part on the detection. 1. A system comprising:a solenoid coupled to a switch;a processor configured to initiate an operation of the solenoid;a drive circuit coupled to the processor and coupled to the switch, the drive circuit configured to receive a command to control an operation of the solenoid;a detector for detecting at least one of a current or voltage of the solenoid, wherein the detector is coupled to the drive circuit.2. The system of claim 1 , wherein the drive circuit is at least one of a pulse-width modulated (PWM) based current drive circuit or a DC-DC converter circuit.3. The system of claim 2 , further comprising a timer-based circuit coupled to the drive circuit claim 2 , wherein the timer-based circuit comprises a monostable multivibrator and a D-flip flop circuit.4. The system of claim 3 , wherein the command to control the operation of the solenoid is received from the timer-based circuit.5. The system of claim 2 , wherein the drive circuit is a PWM-based current drive circuit and is coupled to a comparator-based autonomous mode change circuit comprising a comparator claim 2 , wherein the command to control an operation of the solenoid is determined by the comparator.6. The system of claim 5 , wherein if the comparator determines that an average duty cycle DC of the PWM-based current drive circuit is greater than a reference signal claim 5 , the command is a Pull-in mode command claim 5 , otherwise the command is a Hold mode command.7. The system of ...

SOLENOID DEVICE AND SOLENOID SYSTEM

A solenoid device includes two electromagnetic coils, two stationary cores, two plungers and a yoke that surrounds the two electromagnetic coils. When a first electromagnetic coil is energized, magnetic flux flows through a first magnetic circuit that includes the first stationary core. When the two electromagnetic coils are energized, magnetic flux of the first electromagnetic coil flows through the first magnetic circuit, and magnetic flux of the second electromagnetic coil flows through a second magnetic circuit that includes a second stationary core. When energization of the first electromagnetic coil is stopped while maintaining energization of the second electromagnetic coil, the magnetic flux of the second electromagnetic coil continues to flow through the second magnetic circuit and a third magnetic circuit that includes the two stationary cores. A magnetism limiting portion is disposed in a portion of the second magnetic circuit that does not overlap the third magnetic circuit. 1. A solenoid device comprising:two electromagnetic coils that are configured by a first electromagnetic coil and a second electromagnetic coil, the first electromagnetic coil being energized to generate magnetic flux, the second electromagnetic coil being energized to generate magnetic flux;two stationary cores that are configured by a first stationary core and a second stationary core, the first stationary core being disposed within the first electromagnetic coil, the second stationary core being disposed within the second electromagnetic coil;two plungers that are configured by a first plunger and a second plunger, the first plunger being attracted to the first stationary core by energization of the first electromagnetic coil, the second plunger being attracted to the second stationary core by energization of the second electromagnetic coil; anda yoke that surrounds the two electromagnetic coils,wherein:in a dual-deenergized state in which neither of the two electromagnetic coils ...

CONTROL DEVICE OF AN ELECTROMAGNETIC ACTUATOR FOR A RESTRAINT MEANS

A control device of an electromagnetic actuator for a restraint device, including an evaluation and control unit which generates a control signal which predefines a control sequence having control time periods, in which the actuator is activated, and pause time periods, in which the actuator is deactivated. A protective circuit including a counter is provided, the counter monitoring the control sequence and increments its counter content during the at least one control time period and decrements its counter content during the at least one pause time period, the protective circuit effectuating a deactivation of the actuator when the counter content reaches or exceeds a predefined first threshold value, and allows a reactivation of the actuator when the counter content reaches or falls below a predefined second threshold value after reaching or exceeding the first threshold value, the first counter content being greater than the second counter content. 110-. (canceled)11. A control device of an electromagnetic actuator for a restraint device , the control device comprising:an evaluation and control unit which is designed to generate at least one control signal as a function of a triggering decision which was reached, the control signal determining a chronological sequence of the control of the actuator and predefines a control sequence having at least one control time period in which the actuator is activated, and at least one pause time period in which the actuator is deactivated; anda protective circuit including a counter which monitors the control sequence and increments its counter content during the at least one control time period and decrements its counter content during the at least one pause time period, the protective circuit designed to effectuate a deactivation of the actuator when the counter content reaches or exceeds a predefined first threshold value, and allow a reactivation of the actuator when the counter content reaches or falls below a predefined ...

METHOD FOR CONTROLLING AN ACTUATOR

A method for operating an electromagnetic actuator () with an actuating pin () is proposed which comprises the following steps:—determining a pin actuation actual dead time (t), during which the magnetic armature () is substantially immobile while a magnetic coil () is supplied with current, wherein the actual dead time ends with the current break-in at the magnetic coil, as a result of counter induction of the magnetic armature overcoming the magnetic force threshold;—determining, before a subsequent pin actuation, the starting time of the magnetic coil current supply, wherein the starting point of the current is advanced compared with that of the target movement start of the pin out of the actuator housing () and the determined actual dead time. 1. A method for operating an electromagnetic actuator , comprising a housing with a magnetic coil , an actuating pin , and a magnetic armature , for moving the pin with magnetic force impingement through the energized magnetic coil in an extension direction out from the housing , and a holding element that is arranged between the magnetic armature and the housing and blocks movement of the magnetic armature below a magnetic force threshold , the method comprises the following steps:when the pin is actuated, determining an actual dead time during which the magnetic armature is essentially stationary when the magnetic coil is energized, the actual dead time ending with a current in-rush to the magnetic coil due to counter induction of the magnetic armature overcoming the magnetic force threshold;before a subsequent pin actuation, determining a beginning time point for energizing the magnetic coil, and advancing the current beginning time point by the determined actual dead time relative to a desired movement beginning of the pin traveling out from the housing.2. The method according to claim 1 , further comprising determining the actual dead time each time the pin is actuated and storing the actual dead time up to date in a ...

ELECTROMAGNETIC LOCKING DEVICES, SYSTEMS, AND METHODS

Electromagnetic locking devices, systems, and methods are provided. The electromagnetic locking devices, systems, and methods are configured to lock an actuating arm of an actuator in any desired position between and including a fully extended position and a fully retracted position with respect to an outer cover of the electromagnetic locking device and/or system. The electromagnetic locking devices, systems, and methods described herein may include an unpowered deformable member that imparts fail-safe functionality thereto. 1. An electromagnetic locking device , comprising:a housing comprising a cavity and at least one slot disposed therein to define at least one movable tab portion of the housing;at least one driving rod about which the housing is disposed , wherein the driving rod is proximate to the housing and linearly movable with respect to the housing between and including a fully extended position and a fully retracted position with respect to the housing; andat least one magnetic field generator disposed in the cavity of the housing, wherein the magnetic field generator comprises a magnetic core and a coil disposed about the magnetic core, the magnetic field generator being configured to generate a magnetic field when energized with electrical current, and wherein the magnetic field magnetically attracts the at least one tab portion towards the coil to lock the at least one driving rod in any desired position between and including the fully extended and fully retracted positions.2. The electromagnetic locking device according to claim 1 , wherein the housing comprises iron claim 1 , nickel claim 1 , ceramics claim 1 , chrome claim 1 , cobalt claim 1 , a ferromagnetic material claim 1 , and/or steel.3. The electromagnetic locking device according to claim 1 , wherein the housing comprises a plurality of slots extending substantially a full length of the housing.4. The electromagnetic locking device according to claim 1 , wherein the magnetic core comprises ...

Magnetically Latching Flux-Shifting Electromechanical Actuator

A latching electromechanical actuator () includes a soft iron armature () movable between first and second positions, a permanent magnet (A), a solenoid (), and a soft iron external frame (). The permanent magnet (A) may be stationary relative to the solenoid () and operative to hold the armature () stably in either the first position or the second position. The actuator () provides two distinct magnetic flux paths (A, B), one or the other of which is the primary flux path for the permanent magnet (A) depending on whether the position of armature (). Both flux paths pass through the armature (). One of the flux paths may pass through the external frame (). The other does not. The actuator () may include two permanent magnets () performing complementary roles for the first and second positions. The actuator () can be simply constructed, compact, and highly efficient. 1. (canceled)2. A latching electromechanical actuator , comprising:a coil comprising a plurality of loops around an axis;an armature a portion of which is of low coercivity ferromagnetic material;a structure comprising one or more sections of low coercivity ferromagnetic material outside of the loops; anda permanent magnet positioned between the loops and the armature;wherein the armature is held on the axis, but is movable along the axis between a first position and a second position;with the armature in the first position, the actuator forms a first magnetic circuit that passes through the armature and around the loops via the structure outside of the loopswith the armature in the second position, the actuator forms a second magnetic flux circuit that passes through the armature but not around the loopsthe permanent magnet is operative to stabilize the armature in the first position through magnetic flux following the first magnetic circuit;the permanent magnet is operative to stabilize the armature in the second position through magnetic flux following the second magnetic circuit; andboth the first ...

Gas valve and method for actuation thereof

A method for controlling the through-flow cross-section of a gas valve is described. The gas valve comprises a valve body in which a flow channel is provided, a valve element which can be displaced therein between a closed position and an opened position, an armature, a coil, a spring and a control circuit. For opening the flow channel, the control circuit excites the coil with a pulse width-modulated current, the pulse duty factor of which, starting from a starting value, is increased until the armature starts moving out of the closed position against the effect of the spring. Then, the control circuit reduces the pulse duty factor before the valve element has reached the opened position. The control circuit then sets the pulse duty factor at a predefined holding value with which the valve element is held in the opened position.

Method and Controller for Controlling a Switch Valve

Various embodiments include a method for controlling a pressure dissipation valve comprising a closure element, a spring applying a spring force urging the closure element toward the closed position, and an electromagnetic actuator responding to an applied voltage to urge the closure element to an open position. The method may include: applying a constant voltage until the closure element begins motion counter to the spring force; immediately ending the voltage upon the beginning of motion; thereafter, applying a pulsed voltage to the actuator to induce a substantially constant holding-open current intensity; maintaining the pulsed voltage for a predetermined duration to hold the closure element open; and interrupting the application of voltage after the predetermined duration, wherein the closure element moves into the closed position as a result of the spring force. 1. A method for controlling a pressure dissipation valve for a fuel injection system , wherein the switching valve comprisesa closure element movable between a first end position blocking a valve opening and a second end position at least partially opening the valve opening,a spring applying a spring force urging the closure element toward the first end position, andan electromagnetic actuator responding to an applied voltage to apply an actuator force to the closure element acting oppositely to the spring force,the method comprising:applying a constant voltage to the actuator to induce an opening current pulse until the closure element begins motion counter to the spring force;immediately ending the application of the constant voltage upon the beginning of motion;thereafter, applying a pulsed voltage to the actuator to induce a substantially constant holding-open current intensity;maintaining the pulsed voltage for a predetermined duration to hold the closure element in the second end position; andinterrupting the application of voltage after the predetermined duration, wherein the closure element ...

Method for Actuating an Electromagnetic Valve, and Corresponding Fluid System

A method for actuating an electromagnetic valve in a fluid system includes, for a specified first time period, a switching current with a specified first amplitude is applied, the switching current switching the electromagnetic valve from a rest state into a switching state. After the specified first time period expires, a holding current with a specified second amplitude is applied, the holding current holding the electromagnetic valve in the switching state. The first amplitude of the first switching current is greater than the second amplitude of the holding current.

Relay system

A relay system includes a plurality of relays that is provided between a power supply unit supplying electric power and a load acting by receiving the electric power supplied from the power supply unit to switch between conduction and interruption of the electric power supplied from the power supply unit to the load, each of the relays having an exciting coil, a control unit that controls switching between application of current to the exciting coils and interruption of the current, first switches that separately excite the exciting coils, and a second switch that is connected between the exciting coils. The control unit controls turning on and off the first switches and the second switch to switch the exciting coils between parallel connection and series connection.

Electromagnetic Valve

An electromagnetic valve includes a valve body, a valve core, and an electromagnetic drive device. The valve body has an operation chamber, wherein the valve core is movably arranged in the operation chamber. The electromagnetic drive device is arranged in the valve core and is suitable for being electrically connected with a power source. The electromagnetic drive device is arranged, when driving the electromagnetic valve, to provide the valve core with a starting drive so as to drive the valve core to enter a running state. After the valve core is driven to enter the running to state, to provide the valve core with a maintaining drive so as to keep the valve core in the running state.

Solenoid driver

A solenoid driver may be provided for a solenoid with a coil selectively energized by a power supply in a first polarity. An energy storage device may be charged by the power supply. A circuit may be configured to connect the energy storage device to the coil in a second polarity that is a reverse of the first polarity whenever the power supply is selectively turned off or unexpectedly interrupted.

FINGERPRINTING OF FLUID INJECTION DEVICES

The subject matter of this specification can be embodied in, among other things, a method for characterizing a fluid injector that includes receiving a collection of waveform data, identifying a pull locus, determining a detection threshold level value, identifying a first subset of the collection of data representative of a selected first electrical waveform of the collection of electrical waveforms, identifying an opening value, identifying a representative closing value, identifying an anchor value, identifying a second subset of the collection of data based on the collection of data, the pull locus, the first subset, and the opening value, identifying a maximum electrical value, identifying an opening locus based the collection of data, the anchor value, and the maximum electrical value, identifying a hold value, and providing characteristics associated with the fluid injector comprising the pull locus, the opening locus, the hold value, the anchor value, and the representative closing value. 1. A computer-implemented method for characterizing a fluid injector , comprising:measuring a plurality of electrical waveforms corresponding to a selected magnitude of electrical excitation provided to an actuator of a fluid injector;determining a collection of data representative of the plurality of electrical waveforms and based on the measuring of the plurality of electrical waveforms; a pull locus;', 'a first subset of the collection of data representative of a selected first electrical waveform of the plurality of electrical waveforms;', 'a representative opening value;', 'a representative closing value, further based on the representative opening value;', 'an anchor value, further based on the first subset;', 'a second subset of the collection of data, representative of a selected second electrical waveform of the plurality of electrical waveforms, further based on the collection of data, the pull locus, the first subset, and the representative opening value;, ' ...

Method And System For Moving Material

A method and system for moving magnetic material includes an electromagnet wherein known problems associated with DC power circuit interruptions are substantially reduced. The system includes a generator coupled to an electromagnet, the generator being powered by a power supply through a first set of contactors which arc configured to open and close a first circuit between the power source and the generator coupled to the magnet to start and stop a lifting sequence, wherein the first circuit includes a first bridge rectifier, a reactance element, and a first resistance element. The system includes a second set of contactors configured to open and close a second circuit between the power source and the generator coupled to the magnet to start and stop a dropping sequence, wherein the second circuit includes a second bridge rectifier and at least one pair of contactors for discharging power from the generator, the at least one pair of contactors being configured to open and close a discharge circuit between at least the reactance element and the generator.

Method and system for moving material

A method and system for moving magnetic material includes an electromagnet wherein known problems associated with DC power circuit interruptions are substantially reduced. The system includes a generator coupled to an electromagnet, the generator being powered by a power supply through a first set of contactors which are configured to open and close a first circuit between the power source and the generator coupled to the magnet to start and stop a lifting sequence, wherein the first circuit includes a first bridge rectifier, a reactance element, and a first resistance element. The system includes a second set of contactors configured to open and close a second circuit between the power source and the generator coupled to the magnet to start and stop a dropping sequence, wherein the second circuit includes a second bridge rectifier and at least one pair of contactors for discharging power from the generator, the at least one pair of contactors being configured to open and close a discharge circuit between at least the reactance element and the generator.

Electromagnetic actuator

본 발명은 전자기적 에너지를 기계적 운동 에너지로 변환하는 전자기 액츄에이터를 개시한다. 본 발명은 하우징, 코어, 코일, 리턴수단과 탄성수단으로 구성된다. 코어는 하우징의 내측에 장착되어 있으며, 하우징의 길이 방향을 따라 그 선단이 하우징에 몰입되어 있는 제1 위치와 하우징으로부터 돌출되어 있는 제2 위치 사이를 운동한다. 코일은 코어의 외측에 원통형으로 감겨져 있고, 전류의 인가에 의하여 제1 위치와 제2 위치 사이에서 코어를 운동시킬 수 있는 자기장을 형성한다. 리턴수단은 하우징의 내측에 장착되어 있으며, 코어를 제2 위치에서 제1 위치로 복귀시킨다. 탄성수단은 하우징의 일단과 코어 사이에 장착되어 있고, 코어와 연동되도록 코어가 고정적으로 관통되어 있으며, 코어의 몰입 시 탄성변형되어 탄성 에너지를 갖는다. 본 발명에 의하면, 전자기적 에너지를 기계적 운동 에너지로 변환하는 전자석과 탄성수단의 연동 구조에 의하여 저전력·고출력 구동을 구현할 수 있으며, 간편하게 소형화할 수 있고, 코어의 운동력에 대한 분해능을 높여 코어의 제어성을 향상시킬 수 있다. 또한, 간단한 구조에 의하여 생산성이 향상되고, 생산비가 크게 절감되는 효과가 있다. The present invention discloses an electromagnetic actuator for converting electromagnetic energy into mechanical kinetic energy. The present invention consists of a housing, a core, a coil, a return means and an elastic means. The core is mounted inside the housing and moves along the longitudinal direction of the housing between a first position where the tip is immersed in the housing and a second position protruding from the housing. The coil is wound in a cylindrical shape on the outside of the core and forms a magnetic field capable of moving the core between the first and second positions by the application of a current. The return means is mounted inside the housing and returns the core from the second position to the first position. The elastic means is mounted between one end of the housing and the core, the core is fixedly penetrated to interlock with the core, and elastically deformed when the core is immersed to have elastic energy. According to the present invention, a low power and high power drive can be realized by an interlocking structure of an electromagnet and an elastic means for converting electromagnetic energy into mechanical kinetic energy, and can be easily miniaturized and control of the core by increasing resolution of the kinetic force of the core. Can improve the sex. In addition, the productivity is improved by a simple structure, the production cost is ...

전자기 액츄에이터

본 발명은 전자기적 에너지를 기계적 운동 에너지로 변환하는 전자기 액츄에이터를 개시한다. 본 발명은 하우징, 코어, 코일, 리턴수단과 탄성수단으로 구성된다. 코어는 하우징의 내측에 장착되어 있으며, 하우징의 길이 방향을 따라 그 선단이 하우징에 몰입되어 있는 제1 위치와 하우징으로부터 돌출되어 있는 제2 위치 사이를 운동한다. 코일은 코어의 외측에 원통형으로 감겨져 있고, 전류의 인가에 의하여 제1 위치와 제2 위치 사이에서 코어를 운동시킬 수 있는 자기장을 형성한다. 리턴수단은 하우징의 내측에 장착되어 있으며, 코어를 제2 위치에서 제1 위치로 복귀시킨다. 탄성수단은 하우징의 일단과 코어 사이에 장착되어 있고, 코어와 연동되도록 코어가 고정적으로 관통되어 있으며, 코어의 몰입 시 탄성변형되어 탄성 에너지를 갖는다. 본 발명에 의하면, 전자기적 에너지를 기계적 운동 에너지로 변환하는 전자석과 탄성수단의 연동 구조에 의하여 저전력·고출력 구동을 구현할 수 있으며, 간편하게 소형화할 수 있고, 코어의 운동력에 대한 분해능을 높여 코어의 제어성을 향상시킬 수 있다. 또한, 간단한 구조에 의하여 생산성이 향상되고, 생산비가 크게 절감되는 효과가 있다.

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Kinesthetic actuator using wavy-shaped mre and electro-permanent magnet

본 발명은 wavy-MRE와 전자석을 이용한 근감각 액추에이터에 관한 것으로서, 보다 구체적으로는 wavy-MRE와 전자석을 이용한 근감각 액추에이터로서, 인가되는 전원을 공급받아 자기장을 형성하는 솔레노이드; 상기 솔레노이드가 감겨지며, 상기 솔레노이드에 인가되는 전원에 의해 NS 극성이 가변되고, 그에 상응하는 자기장을 형성하는 전자석; 상기 전자석의 상부에 배치되어, 자기장이 인가되지 않으면 원래의 부드러운 상태의 근감각을 형성하고, 자기장이 인가되면 압축되어 크기가 작아지면서 딱딱한 상태의 근감각을 형성하는 웨이브가 있는 wavy-MRE; 및 상기 전자석에 감겨진 솔레노이드에 자기장 형성을 위한 전원을 공급하기 위한 전원 공급부를 포함하는 것을 그 구성상의 특징으로 한다. 본 발명에서 제안하고 있는 wavy-MRE와 전자석을 이용한 근감각 액추에이터에 따르면, 솔레노이드에 인가되는 전원에 의해 자기장을 형성하는 전자석과, 자기장이 인가되지 않은 상태에서는 원래의 부드러운 상태의 근감각을 형성하고, 자기장이 인가되는 상태에서는 딱딱한 상태로 압축되어 크기가 작아지면서 딱딱한 상태의 근감각을 형성하는 wavy-MRE와, 전자석에 감겨진 솔레노이드에 자기장 형성을 위한 전원을 공급하는 전원 공급부를 포함하여 구성함으로써, 얇고 유연하며 내구성이 강한 소형의 근감각 액추에이터의 구현이 가능하고, wavy-MRE에 인가되는 자기장의 유무에 따라 변화되는 강도로 부드러운 느낌과 딱딱한 느낌의 다양한 형태의 근감각을 효과적으로 생성할 수 있도록 할 수 있다. 또한, 본 발명의 wavy-MRE와 전자석을 이용한 근감각 액추에이터에 따르면, 솔레노이드에 감긴 전자석에서 발생하는 자기장을 통해 wavy-MRE의 물성 강도가 유연한 상태와 하드한 상태의 근감각으로 사용됨으로써, 근감각 액추에이터의 간단한 구조 및 소형화가 가능하고, 근감각 발생의 구동 제어가 용이하며, 다기능화로 소형화되는 스마트기기에 최적화된 적용이 가능하도록 할 수 있다. 뿐만 아니라, 본 발명의 wavy-MRE와 전자석을 이용한 근감각 액추에이터에 따르면, 자기장을 형성하는 전자석을 인가되는 전원에 의해 NS 극성이 가변되는 전자영구자석으로 구성함으로써, 솔레노이드의 자기장이 사라지더라도 전자영구자석의 자기장은 그대로 유지됨에 따라 근감각 발생을 위한 근감각 액추에이터의 소비되는 전력을 줄여줄 수 있도록 할 수 있다. The present invention relates to a muscle sensory actuator using a wavy-MRE and an electromagnet, and more specifically, as a muscle sensory actuator using a wavy-MRE and an electromagnet, comprising: a solenoid configured to form a magnetic field by receiving applied power; The solenoid is wound, the NS polarity is changed by power applied to the solenoid, and an electromagnet that forms a magnetic field corresponding thereto; A wavy-MRE having a wave disposed on the top of the electromagnet to form an original soft muscle sensation when a magnetic field is not applied, and compressing when a magnetic field is applied to form a rigid muscle sensation; And a power supply for supplying power for forming a magnetic field to the solenoid wound around the electromagnet. According to the muscle sensory actuator ...

Drive circuit

A control circuit for an electromagnetically operable fuel control valve (16) of a vehicle engine includes a tank capacitor (27) which upon closure of first and second controllable switches supplies current to the winding (18) of the valve to achieve a high rate of rise of current in the winding and rapid operation of the valve. Following operation of the valve it is maintained in its operated state by current chopping action, the current rise being achieved by drawing current from a low voltage source (35) through a third controllable switch (30). The current fall is at a high rate and the resultant high voltage induced in the winding is utilized to recharge the tank capacitor (27).

Wide voltage range driver circuit for a fuel injector

Solenoid controlling circuit

Method for operating a fuel injector having an idle stroke

描述了一种用于操控用于机动车的内燃机的燃料喷射器的方法，所述燃料喷射器具有磁线圈驱动器和喷嘴针，其中，所述磁线圈驱动器具有磁线圈和可运动的电枢，其中，所述燃料喷射器具有在所述电枢和所述喷嘴针之间的空行程。所述方法包括以下步骤：（a）在预增压阶段期间，以预增压电流加载所述磁线圈驱动器，以便使所述可运动的电枢与所述喷嘴针机械接触；和（b）在增压阶段期间，以电压脉冲加载所述磁线圈驱动器，直到流过所述磁线圈的电流的电流强度达到预先确定的峰值。也描述了一种发动机控制器和一种计算机程序。

Determining the closing time of a fuel injection valve based on evaluating the actuation voltage

The invention relates to a method for determining a closing time of a valve having a coil drive, in particular a direct injection valve for an engine of a motor vehicle. The method comprises (a) switching off a current flow through a coil (L_inj) of the coil drive, so that the coil (L_inj) is depowered, (b) capturing a time curve (110) of a voltage induced in the non-powered coil (L_inj), wherein the induced voltage is generated by decaying eddy currents in a magnetic circuit of the coil drive and by a motion of the armature relative to the coil (L_inj), (c) evaluating the captured time curve (110) of the voltage induced in the coil (L_inj), and (d) determining the closing time based on the evaluated time curve (110). The invention further relates to a corresponding device and to a computer program for determining the closing time of a valve comprising a coil drive.

Determining the closing time of a fuel injection valve based on an evaluation of the drive voltage

Es wird ein Verfahren zum Bestimmen eines Schließzeitpunktes eines einen Spulenantrieb aufweisenden Ventils, insbesondere eines Direkteinspritzventils für einen Motor eines Kraftfahrzeuges beschrieben. Das Verfahren weist auf (a) ein Abschalten eines Stromflusses durch eine Spule (L_inj) des Spulenantriebs, so dass die Spule (L_inj) stromlos ist, (b) ein Erfassen eines zeitlichen Verlaufs (110) einer in der stromlosen Spule (L_inj) induzierten Spannung, wobei die induzierte Spannung durch abklingende Wirbelströme in einem Magnetkreis des Spulenantriebs und durch eine Bewegung des Magnetankers relativ zu der Spule (L_inj) erzeugt wird, (c) ein Auswerten des erfassten zeitlichen Verlaufs (110) der in der Spule (L_inj) induzierten Spannung, und (d) ein Bestimmen des Schließzeitpunktes basierend auf dem ausgewerteten zeitlichen Verlauf (110). Es wird ferner eine entsprechende Vorrichtung sowie ein Computerprogramm zum Bestimmen des Schließzeitpunkts eines einen Spulenantrieb aufweisenden Ventils beschrieben. A method for determining a closing time of a valve having a coil drive, in particular a direct injection valve for an engine of a motor vehicle, is described. The method comprises (a) switching off a current flow through a coil (L_inj) of the coil drive, so that the coil (L_inj) is currentless, (b) detecting a time profile (110) induced in the currentless coil (L_inj) Voltage, the induced voltage being generated by decaying eddy currents in a magnetic circuit of the coil drive and by a movement of the magnet armature relative to the coil (L_inj), (c) evaluating the recorded time profile (110) of those induced in the coil (L_inj) Voltage, and (d) determining the closing time based on the evaluated time profile (110). A corresponding device and a computer program for determining the closing time of a valve having a coil drive are also described.

Determining the closing time of a fuel injection valve based on an evaluation of the drive voltage

Verfahren zum Bestimmen eines Schließzeitpunktes eines einen Spulenantrieb aufweisenden Ventils, insbesondere eines Direkteinspritzventils für einen Verbrennungsmotor eines Kraftfahrzeuges, das Verfahren aufweisend • Abschalten eines Stromflusses durch eine Spule (L_inj) des Spulenantriebs, so dass die Spule (L_inj) stromlos ist, • Erfassen eines zeitlichen Verlaufs (110) einer in der stromlosen Spule (L_inj) induzierten Spannung, wobei die induzierte Spannung durch abklingende Wirbelströme in einem Magnetkreis des Spulenantriebs und durch eine Bewegung des Magnetankers relativ zu der Spule (L_inj) erzeugt wird, • Auswerten des erfassten zeitlichen Verlaufs (110) der in der Spule (L_inj) induzierten Spannung, und • Bestimmen des Schließzeitpunktes basierend auf dem ausgewerteten zeitlichen Verlauf (110), wobei das Auswerten ein Vergleichen einer zeitlichen Ableitung (120) des erfassten zeitlichen Verlaufs (110) der in der Spule (L_inj) induzierten Spannung mit einer zeitlichen Ableitung eines Referenzspannungsverlaufs (215) umfasst. Method for determining a closing time of a valve drive having a coil drive, in particular a direct injection valve for an internal combustion engine of a motor vehicle, comprising the method comprising: switching off a current flow through a coil (L_inj) of the coil drive so that the coil (L_inj) is de-energized, detecting a temporal The course (110) of a voltage induced in the electroless coil (L_inj), wherein the induced voltage is produced by decaying eddy currents in a magnetic circuit of the coil drive and by a movement of the magnet armature relative to the coil (L_inj), • evaluating the detected time profile ( 110) of the voltage induced in the coil (L_inj), and • determining the closing time based on the evaluated time course (110), the evaluating a comparison of a time derivative (120) of the detected time course (110) in the coil ( L_inj) induced voltage with a temporal hen derivative of a reference voltage waveform (215).

Determining the closing time of a fuel injection valve based on evaluating the actuation voltage

A method for determining a closing time of a valve having a coil drive, in particular a direct injection valve for an engine of a motor vehicle, has the steps: (a) switching off a current flow through a coil (L_inj) of the coil drive, so that the coil (L_inj) is depowered, (b) capturing a time curve ( 110 ) of a voltage induced in the non-powered coil (L_inj), wherein the induced voltage is generated by decaying eddy currents in a magnetic circuit of the coil drive and by a motion of the armature relative to the coil (L_inj), (c) evaluating the captured time curve ( 110 ) of the voltage induced in the coil (L_inj), and (d) determining the closing time based on the evaluated time curve ( 110 ). A corresponding device and a computer program for determining the closing time of a valve with a coil drive can be provided accordingly.

Two stage thrust drive for starter motors - has pinion engagement winding excited only until main contacts close

The two stage thrust has an engagement relay with an engagement magnet. Current passes through the holder winding during the whole of the starting process. The engagement winding is only excited until the starter motor main contacts are closed. The keeper winding (18) is connected to the vehicle storage battery via a starter switch (2) and earth (17). The engagement winding (22) is part of a second circuit (20) whose one end is connected to the main contact bridge (19) from the storage battery. The second end is connected between the main current contact and the starter motor field winding (6).

Starting device for internal combustion engine, has starter relay with two independently energized windings, where actuating power of lifting armature is greater than sum of forces of contact return spring and armature return spring

Eine Startvorrichtung für eine Brennkraftmaschine weist ein Starterritzel auf, das mittels eines elektromagnetischen Starterrelais verstellbar und von einem elektrischen Startermotor antreibbar ist, wobei im Starterrelais eine Einschalteinrichtung zum Einschalten des Startermotors angeordnet ist. Das Starterrelais weist zwei unabhängig voneinander bestrombare Wicklungen auf.

THERMAL ENGINE STARTER DEVICE

Dispositif de démarreur de moteur thermique comportant un pignon démarreur déplacé par un relai démarreur (6). Le relai (6) a une installation de branchement (16) du moteur de démarreur (11), actionnée par l'induit (8) du relai (6) et un ressort de rappel d'induit (18) ainsi qu'un ressort de rappel de contact (24) qui rappelle l'installation de branchement (16) en position de repos. Un ressort d'engrènement (13) sollicite le pignon de démarreur . Le relai (6) comporte au moins deux enroulements alimentés indépendamment . La force de l'induit coulissant (8) générée par le premier enroulement est supérieure à la somme de la force exercée par le ressort de contact (24) et le ressort d'induit (18), mais inférieure à la somme de la force des ressorts. A thermal engine starter device comprising a starter gear displaced by a starter relay (6). The relay (6) has a connection installation (16) of the starter motor (11), actuated by the armature (8) of the relay (6) and an armature return spring (18) and a spring contact return device (24) which recalls the connection installation (16) in the rest position. A meshing spring (13) biases the starter gear. The relay (6) has at least two independently powered windings. The force of the sliding armature (8) generated by the first winding is greater than the sum of the force exerted by the contact spring (24) and the armature spring (18), but less than the sum of the force springs.

Starting device for an internal combustion engine

Startvorrichtung für eine Brennkraftmaschine, mit einem Starterritzel (2), das mittels eines elektromagnetischen Starterrelais (6) zwischen einer Außerfunktionsposition und einer Eingriffsposition mit einem Zahnkranz (3) einer Brennkraftmaschine (4) verstellbar und von einem elektrischen Startermotor (11) antreibbar ist, wobei im Starterrelais (6) eine Einschalteinrichtung (16) zum Einschalten des Startermotors (11) angeordnet ist, wobei die Einschalteinrichtung (16) über die Stellbewegung eines Hubankers (8) des Starterrelais (6) betätigbar ist und eine Ankerrückstellfeder (18) den Hubanker (8) in die Ausgangsposition sowie eine Kontaktrückstellfeder (24) die Einschalteinrichtung (16) in die Ausschaltposition beaufschlagt, mit einer das Starterritzel (2) in Richtung der Eingriffsposition beaufschlagenden Einspurfeder (13), dadurch gekennzeichnet, dass das Starterrelais (6) zumindest zwei unabhängig voneinander bestrombare Wicklungen aufweist, wobei die von einer ersten Wicklung erzeugbare Stellkraft des Hubankers (8) größer als die Summe der Kraft von Kontaktrückstellfeder (24) und Ankerrückstellfeder (18) ist, jedoch kleiner als die Summe der Kraft von Kontaktrückstellfeder (24), Ankerrückstellfeder (18) und Einspurfeder (13). Starting device for an internal combustion engine, with a starter pinion (2) which is adjustable by means of an electromagnetic starter relay (6) between a non-functional position and an engagement position with a ring gear (3) of an internal combustion engine (4) and can be driven by an electric starter motor (11), wherein a switch-on device (16) for switching on the starter motor (11) is arranged in the starter relay (6), the switch-on device (16) being actuatable via the actuating movement of a lifting armature (8) of the starter relay (6) and an armature return spring (18) actuating the lifting armature ( 8) in the starting position and a contact return spring (24) presses the switch-on device (16) into the switch-off position, with an ...

Fuel supply device

Drive device of solenoid pump

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Ac electromagnet device

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

The determination promoting delay of magnet valve

本发明涉及一种用于确定磁阀的打开延迟时间的方法。此外，本发明涉及一种用于触发内燃机中的喷射装置中的至少一个磁阀的控制设备。为了确定磁阀的当前的打开延迟时间，在此提出，在测量阶段中实施所述磁阀的触发并且从所述磁阀的触发的开始以及其打开时刻中求出一个差。为了确定打开时刻，在测量阶段中实施磁阀的触发。在触发过程中观察触发电流。如果在所述触发电流中发现变化，那就推断出达到打开时刻这种情况。优选在所述测量阶段中将至少几乎恒定的触发电压加载到励磁线圈上。所述能够预先设定的变化尤其是触发电流的平滑度，所述平滑度优选通过所区分的电流信号的最小值的检测来求得。

Plunger driving circuit

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Electromagnetic valve drive circuit

Method and Device for Operating a Switching Device

A method is disclosed for operating a switching device using at least one electromagnetic drive, which has a displaceable armature for opening and closing at least one main contact of the switching device. According to at least one embodiment of the invention, a modification of the magnetic flux between a first position, when the main contact is deactivated, and a second position, when the main contact is activated, is identified in the electromagnetic drive and a solenoid current of the electromagnetic drive is restricted to a predetermined minimum current value in the second position, if the magnetic flux modification exceeds a predeterminable value. One advantage of at least one embodiment is that an actuation displacement of the armature can be identified as reliable, if an associated modification of the magnetic flux is also measured. The metrological recording of the magnetic flux is contactless.

Operative control circuit of multiple electromagnetic actuating devices in series and parallel connection

An operative control circuit of multiple electromagnetic actuating devices in series and parallel connections, wherein individually installed driving coils of two or more than two electromagnetic actuating devices being operatively controlled by a switching device to appear lower impedance in parallel connection or series and parallel connection for electrification thereby producing a larger electromagnetic actuating power is switched to appear relatively higher impedance in series connection or series and parallel connection thereby reducing currents passing through driving coils while required operating characteristics for individual electromagnetic actuating devices after electrification are still satisfied.

The operation coil-driving apparatus of electronic of electromagnetic contactor

本发明提供了一种能够确认操作线圈的动作电阻值、得到与动作条件相符的适当的操作线圈电流的电磁接触器的操作线圈驱动装置。包括：检测对电磁接触器的操作线圈进行开关控制时流动的电流和端子间电压的电流和电压检测部(37、38)；和驱动控制部(35)，其进行控制，使得将电源电压进行开关后施加至操作线圈的半导体开关元件的导通关断时间比在闭合控制时较大而在保持控制时较小，驱动控制部包括：在闭合控制刚开始后计算操作线圈的电感的闭合控制时电感运算部(51)；基于该运算结果来计算操作线圈的直流电阻值的闭合控制时电阻值运算部(52)；和基于该运算结果来修正半导体开关元件的闭合控制时的导通关断时间比的闭合控制时开关修正部(54)。

Method for controlling an actuator

Vorgeschlagen ist ein Verfahren zum Betreiben eines elektromagnetischen Aktuators (10) mit einem aktuierenden Stößel (9), das folgende Schritte umfasst: – bei einer Stößelaktuation Ermitteln einer Ist-Totzeit (t11), während deren der Magnetanker (15) bei bestromter Magnetspule (12) im wesentlichen bewegungslos ist, wobei die Ist-Totzeit mit dem Stromeinbruch an der Magnetspule infolge Gegeninduktion des die Magnetkraftschwelle überwindenden Magnetankers endet; – vor einer nachfolgenden Stößelaktuation Ermitteln des Beginnzeitpunkts der Magnetspulenbestromung, wobei der Strombeginnzeitpunkt gegenüber dem Soll-Bewegungsbeginn des aus dem Aktuatorgehäuse (13) ausfahrenden Stößels um die ermittelte Ist-Totzeit vorverlegt wird. A method is proposed for operating an electromagnetic actuator (10) with an actuating plunger (9), which comprises the following steps: - in the event of a plunger actuation, determining an actual dead time (t11) during which the magnet armature (15) when the magnet coil (12 ) is essentially motionless, the actual dead time ending with the current dip at the magnet coil as a result of mutual induction of the magnet armature overcoming the magnetic force threshold; - Before a subsequent plunger actuation, determine the start time of the magnet coil energization, the current start time being brought forward by the determined actual dead time compared to the target movement start of the plunger extending out of the actuator housing (13).

Method for controlling an injection process of a magnet injector

Die Erfindung betrifft ein Verfahren zur Steuerung eines Einspritzvorgangs eines Magnetinjektors eines Verbrennungsmotors, wobei der Magnetinjektor eine Spule aufweist, wobei zum Öffnen des Magnetinjektors die Spule mit einem ersten Strom (IVK, Imax, IAnzug) beaufschlagt wird, zum Offenhalten des Magnetinjektors die Spule kurzgeschlossen wird, und zum Schließen des Magnetinjektors die Spule mit einem zweiten Strom (IS) beaufschlagt wird, wobei der zweite Strom (IS) dem ersten Strom (IVK, Imax, IAnzug) entgegengerichtet ist. The invention relates to a method for controlling an injection process of a magnetic injector of an internal combustion engine, the magnetic injector having a coil, a first current (IVK, Imax, IAnzug) being applied to the coil to open the magnetic injector and the coil being short-circuited to keep the magnetic injector open , and to close the magnet injector, the coil is acted upon by a second current (IS), the second current (IS) being opposite to the first current (IVK, Imax, IAnzug).

Method and control device for controlling a switching valve

Die Erfindung betrifft ein Verfahren zum Steuern eines Schaltventils (16), bei dem ein Aktuator (22) mit einer konstanten Spannung (UC1) solange beaufschlagt wird, bis sich ein Verschlusselement (36), das durch den Aktuator (22) betätigt wird, in Bewegung setzt, und dann die Beaufschlagung mit der konstanten Spannung (UC1) sofort beendet wird und der Aktuator (22) mit einer gepulsten Spannung (UPuls1) beaufschlagt wird. Weiter betrifft die Erfindung eine Steuereinrichtung (40), die zum Durchführen des Verfahrens geeignet ist. The invention relates to a method for controlling a switching valve (16) in which an actuator (22) is subjected to a constant voltage (UC1) until a closure element (36) actuated by the actuator (22) engages Movement sets, and then the application of the constant voltage (UC1) is terminated immediately and the actuator (22) is applied with a pulsed voltage (UPuls1). Furthermore, the invention relates to a control device (40) which is suitable for carrying out the method.

Method for operating switching valve of fuel conveying device of combustion engine mounted in motor car, involves changing amplitude and/or duration and/or timing of control until change of voltage falls below threshold value

The method involves controlling the actuator device (9) temporarily such that a movable armature of the actuator device before reaching an end position is braked. The control for braking of the armature is determined so that change of applied voltage of the coil of electromagnetic actuator device in a time interval is determined so that the armature reached the end position. The amplitude and/or duration and/or timing of the control are changed until the change of voltage falls below the threshold value. An independent claim is included for computer program for operating switching valve.

Injection control device

Solenoid drive circuit

A solenoid drive circuit, provides both a starting current and a lower holding current to a solenoid coil (10). The coil (10) is connected in series with a drive transistor (11) which is turned ON to provide the starting current and alternately ON and OFF to provide the holding current. A series connected diode (14) and Zener diode (15) are connected in parallel to the solenoid coil (10). A first switching transistor (16) is connected in parallel with the Zener diode (15) and switched ON during the holding period to by-pass the Zener diode (15). This enables the back e.m.f. generated in the solenoid coil (10) to be used to sustain the current through the solenoid coil (10) during the holding period. Turning OFF the first switching transistor (16) restores the effect of the Zener diode (15) to provide a good OFF response for the drive circuit at the end of the holding period.

IMPACT EXAMPLE SOLENOID VALVE FOR A FUEL INJECTION SYSTEM WITH AERTIC IMPACT IN A VEHICLE ENGINE

MECHANICAL CONTROL ENERGY TRANSMISSION DEVICE, IN PARTICULAR FOR CONTROLLING THE BRAKING PRESSURE IN A BRAKE.

Le dispositif selon l'invention comporte au moins un actionneur rotatif (11) équipé d'un ressort de rappel (14) et une bielle (12) reliée à l'actionneur rotatif pour transmettre un mouvement linéaire à un organe mécanique (1). L'actionneur rotatif (11) est mû par un électro-aimant rotatif dont la position angulaire est commandée par un courant (1) impulsionnel et périodique. Le dispositif comporte en outre des moyens de suppression de l'énergie magnétisante stockée dans l'électro-aimant. The device according to the invention comprises at least one rotary actuator (11) equipped with a return spring (14) and a connecting rod (12) connected to the rotary actuator for transmitting a linear movement to a mechanical member (1). The rotary actuator (11) is driven by a rotary electromagnet, the angular position of which is controlled by a pulsed and periodic current (1). The device further comprises means for removing the magnetizing energy stored in the electromagnet.

ELECTROMAGNETIC ACTUATOR AND ELECTRICAL CONTACTOR COMPRISING SUCH ACTUATOR.

Actionneur électromagnétique comprenant un circuit magnétique comportant une culasse magnétique collaborant avec une armature mobile commandée en mouvement. Une bobine de commande (3) est destinée à générer un flux magnétique pour déplacer ou maintenir l'armature mobile (11) vis-à-vis de la culasse magnétique (10). Des moyens de commande (2) sont destinés à fournir une tension d'appel (U) pendant une opération de fermeture, et une tension de maintien (%u) pendant une opération de maintien. Les moyens de commande (2) comportent des moyens de régulation de tension de maintien (%u) comprenant un premier abaisseur de tension (51) de la tension d'appel (U) pour fournir une tension intermédiaire (u) et un second abaisseur de tension (52) de la tension intermédiaire pour fournir une tension de maintien (%u). Electromagnetic actuator comprising a magnetic circuit comprising a magnetic yoke collaborating with a movable armature controlled movement. A control coil (3) is provided for generating a magnetic flux for moving or holding the movable armature (11) with respect to the magnetic yoke (10). Control means (2) are provided for providing a calling voltage (U) during a closing operation, and a holding voltage (% u) during a holding operation. The control means (2) comprise holding voltage regulating means (% u) comprising a first voltage step (51) of the call voltage (U) for providing an intermediate voltage (u) and a second step-down voltage (52) of the intermediate voltage to provide a holding voltage (% u).

The operation coil-driving apparatus of electronic of electromagnetic contactor

本发明提供了一种能够确认操作线圈的动作电阻值、得到与动作条件相符的适当的操作线圈电流的电磁接触器的操作线圈驱动装置。包括：检测对电磁接触器的操作线圈进行开关控制时流动的电流和端子间电压的电流和电压检测部(37、38)；和驱动控制部(35)，其进行控制，使得将电源电压进行开关后施加至操作线圈的半导体开关元件的导通关断时间比在闭合控制时较大而在保持控制时较小，驱动控制部包括：在闭合控制刚开始后计算操作线圈的电感的闭合控制时电感运算部(51)；基于该运算结果来计算操作线圈的直流电阻值的闭合控制时电阻值运算部(52)；和基于该运算结果来修正半导体开关元件的闭合控制时的导通关断时间比的闭合控制时开关修正部(54)。

FEEDING CIRCUIT OF A COIL FOR ELECTRO-MAGNET

Control circuit for EM relay coil

IL EST DECRIT DEUX SOLUTIONS POUR UN CIRCUIT DE COMMANDE QUI PERMET DE PRODUIRE UNE FORCE D'ATTRACTION PREDETERMINEE AVEC UN ELECTRO-AIMANT DE PETITES DIMENSIONS QUI N'EXERCE PAS CETTE FORCE D'ATTRACTION A SA TENSION NOMINALE. UNE PREMIERE SOLUTION CONSISTE A ELEVER LA TENSION DE SERVICE, QUI EST EGALE A LA TENSION NOMINALE DE LA BOBINE EXCITATRICE EN REGIME PERMANENT, A UNE VALEUR BEAUCOUP PLUS ELEVEE PENDANT LE TEMPS D'ATTRACTION, AU MOYEN D'UNE INDUCTANCE MISE EN CIRCUIT ET D'UN CONDENSATEUR DE CHARGE. UNE SECONDE SOLUTION CONSISTE A ABAISSER, APRES LE TEMPS D'ATTRACTION, A UNE VALEUR CORRESPONDANT A LA TENSION NOMINALE DE LA BOBINE EXCITATRICE, UNE TENSION DE SERVICE QUI SE SITUE NETTEMENT AU-DESSUS DE LA TENSION NOMINALE DE LA BOBINE EXCITATRICE, PAR INTERRUPTION PERIODIQUE AVEC UTILISATION DE L'INDUCTANCE DE LA BOBINE EXCITATRICE SERVANT D'ACCUMULATEUR D'ENERGIE.

Economical power supply method for the rapid establishment of a current in a coil, and its applications

Mechanical drive power transmitting device

FIELD: mechanical engineering. SUBSTANCE: device has rotary drive with pull-back spring and connecting rod connected with rotary drive to transmit linear motion to mechanical member. Rotary drive has rotating electromagnet whose angular position is regulated by pulse and periodic current. Special device is provided to remove magnetization energy accumulated in electromagnet. EFFECT: simplified automatic control system owing to the less pronounced phenomena of resonance and instability. 10 cl, 10 dwg сгтвбэрггс пы Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ "” 2416 913 ' (51) МПК 13) Сл В 60 Т 8/60 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93004780/28, 09.03.1993 (30) Приоритет: 10.03.1992 ЕК 9202843 (46) Дата публикации: 10.08.1998 (56) Ссылки: ЕК, заявка, 2314529, кл. С 05 В 11/06, 1977. (71) Заявитель: Томсон-ЦСФ (ЕК) (72) Изобретатель: Кристиан Менар (ЕК) (73) Патентообладатель: Томсон-ЦСФ (ЕК) (54) УСТРОЙСТВО ПЕРЕДАЧИ ЭНЕРГИИ МЕХАНИЧЕСКОГО ПРИВОДА (57) Реферат: Устройство включает в себя по крайней мере ротационный привод, оснащенный оттяжной пружиной и шатуном, соединенным с ротационным приводом для передачи линейного движения на механический орган. Ротационный привод оснащен вращающимся электромагнитом, угловое положение которого регулируется импульсным и периодическим током. Имеется средство снятия энергии намагничивания, накопленной в электромагните. Устройство обеспечивает упрощение системы автоматического регулирования благодаря менее выраженным явлениям резонанса и неустойчивости. 9 з. п. ф-лы, 10 ил. / 5 } б УР 2 | . | Ц и 1” Фиг.1 2116913 С1 КО сгтвбэрггс пы Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ 12) АВЗТКАСТ ОЕ 1МУЕМТОМ (19) (51) 1пЕ. С1.6 13) ВИ "” 2416 913 ' В 60 Т 3/60 СЛ (21), (22) АррИсаНоп: 93004780/28, 09.03.1993 (30) Рпогйу: 10.03.1992 ЕВ 9202843 (46) Рае ог рибИсаНоп: 10.08.1998 (71) АррИсапе: Тотзоп-Т$зЭЕ (ЕК) (72) пуетог. — КизНап Мепаг (ЕК) (73) Ргорпеюг: Тотзоп-Т$зЕ (ЕК) (54) МЕСНАМ! ...

Solenoiddactuated fuel flow controller

METHOD AND DEVICE FOR CONTROLLING ACTUATORS CONNECTED TO AN ELECTRICAL NETWORK SYSTEM ONBOARD IN A MOTOR VEHICLE

Patent FR2428741B1

Fast control circuit for direct current solenoid

Circuit arrangement for actuating a solenoid valve by clocked control

Schaltungsanordnung zur getakteten Ansteuerung eines elektromagnetischen Aktors, insbesondere eines Magnetventils, die nach dem Einschalten, getriggert durch ein Zeitglied (13), über einen Halbleiterschalter (12) eines ersten Schaltungsteils (11) für die kurze Dauer der Anzugsphase des Magnetventils eine Magnetspule (10) direkt mit einer Versorgung (1) verbindet. Nach einem definierten Zeitintervall wird ein zweiter Schaltungsteil (7) aktiv, der im Wesentlichen aus einem integrierten Schaltkreis (50) besteht, der alle technischen Mittel zu einer taktenden Ansteuerung beinhaltet und die Magnetspule über einen zweiten Halbleiterschalter (9) in der Weise ansteuert, dass sich ein reduzierter getakteter Haltestrom auf einem exakt vorgegebenen Level einstellt. Circuit arrangement for clocked activation of an electromagnetic actuator, in particular a solenoid valve, which, after being switched on, triggered by a timer (13), via a semiconductor switch (12) of a first circuit part (11) for the short duration of the starting phase of the solenoid valve, a magnetic coil (10) connects directly to a supply (1). After a defined time interval, a second circuit part (7) is active, which consists essentially of an integrated circuit (50), which includes all the technical means for a clocking drive and the solenoid via a second semiconductor switch (9) controls in such a way that a reduced clocked holding current sets at a precisely predetermined level.

Circuit arrangement for actuating a solenoid valve

Schaltungsanordnung zur Ansteuerung eines elektromagnetischen Schaltventils, die nach dem Einschalten, getriggert durch ein Zeitglied (11), über einen Halbleiterschalter (10) für die kurze Dauer der Anzugsphase des Magnetventils eine Magnetspule (9) direkt mit einer Versorgung (1) verbindet und nach einem definierten Zeitintervall in eine Haltephase mit reduziertem Haltestrom übergeht. Der Haltestrom des Magnetventils wird mittels einer Regeleinrichtung (5), bestehend aus einer Referenzspannungsquelle (6), einem Transistor (8) und einem Widerstand (7), auf einen vorgegebenen Wert geregelt. Circuit arrangement for controlling an electromagnetic switching valve which, after being switched on, triggered by a timing element (11), connects a magnetic coil (9) directly to a supply (1) via a semiconductor switch (10) for the short duration of the starting phase of the solenoid valve, and after one defined time interval in a holding phase with reduced holding current passes. The holding current of the solenoid valve is regulated by means of a control device (5), consisting of a reference voltage source (6), a transistor (8) and a resistor (7) to a predetermined value.

Controlling current flow through magnet coil of magnetic valve - involves measuring continuously voltage drop over magnet coil and power switch

Control circuit for inductive load

Fluid servo valve and fluid servo device

本发明提供流体伺服阀和流体伺服装置。为了得到均匀的性能，由电磁铁、挡板、磁轭件构成闭环磁路，利用所述电磁铁的磁极和所述挡板之间产生的麦克斯韦吸引力使挡板自身弹性变形，使所述喷嘴与所述挡板的间隔距离可变，由此控制流体压力和流量。与现有伺服阀那样的以支点为中心摆动运动的刚体挡板结构不同，以磁隙的变化直接成为气隙的变化的方式，来构成所述电磁铁、所述磁极、所述喷嘴和所述挡板等。

Circuit arrangement for actuating a solenoid valve

Schaltungsanordnung zur Ansteuerung eines elektromagnetischen Schaltventils, die nach dem Einschalten, getriggert durch ein Zeitglied (11), über einen Halbleiterschalter (10) für die kurze Dauer der Anzugsphase des Magnetventils eine Magnetspule (9) direkt mit einer Versorgung (1) verbindet und nach einem definierten Zeitintervall in eine Haltephase mit reduziertem Haltestrom übergeht. Der Haltestrom des Magnetventils wird mittels einer Regeleinrichtung (5), bestehend aus einer Referenzspannungsquelle (6), einem Transistor (8) und einem Widerstand (7), auf einen vorgegebenen Wert geregelt. Circuit arrangement for controlling an electromagnetic switching valve which, after being switched on, triggered by a timing element (11), connects a magnetic coil (9) directly to a supply (1) via a semiconductor switch (10) for the short duration of the starting phase of the solenoid valve, and after one defined time interval in a holding phase with reduced holding current passes. The holding current of the solenoid valve is regulated by means of a control device (5), consisting of a reference voltage source (6), a transistor (8) and a resistor (7) to a predetermined value.

Determination of the lift delay of a magnetic valve

Valve`s e.g. control valve, magnetic coil actuating method, involves controlling signal processing unit in holding phase, such that linear voltage regulation results in coil, where unit is arranged parallel to series connection

The method involves switching an actuator (40) in series to an electromagnetic coil (L) for linearly and directly generating a control current, during an initial pick-up phase of the magnetic coil, where the actuator is in the form of a transistor (8). A signal processing unit, arranged parallel to a series connection, is controlled in the subsequent holding phase, such that a linear voltage regulation results in the magnetic coil. An independent claim is also included for an actuating circuit implementing a method of actuating a magnetic coil of a control valve.

Actuating magnet for hydraulic valve

Offenbart ist ein Betätigungsmagnet für ein hydraulisches Ventil, der einen Anzugstrom und eine verringerten Haltestrom in seiner Spule erzeugen kann. Mit dem Anzugstrom wird ein Anker zu einem Polstück gezogen, und mit dem Haltestrom wird der Anker am Polstück gehalten. Da keine Antiklebscheibe zwischen Anker und Polstück vorgesehen ist, kann der Haltestrom gegenüber dem Stand der Technik verringert werden.

Method for controlling the motion of an armature of an electromagnetic actuator

Method for Actuating a Solenoid Valve and Associated Device

A method for actuating a solenoid valve generates precise opening and closing times of the solenoid valve. To this end, an actuating current provided for actuating the solenoid valve and applied to an actuating coil of the solenoid valve is already reducing in a reduction phase prior to a switch-off point in time of the solenoid valve relative to a maintained level of the actuating current, at which the solenoid valve is reliably held in an actuating position.

ELECTRICAL CONTROL CIRCUIT FOR INDUCTIVE LOAD

Circuit de commande électrique pour charge inductive. Dans un circuit destiné à provoquer et supprimer rapidement une charge inductive se présentant sous la forme d'un solénoïde 15, une impulsion d'entrée 21 appliquée à une borne d'entrée 20 met en fonction un transistor Q, ce qui a pour effet de provoquer le passage d'un courant entre une source d'alimentation continue 24 et l'enroulement primaire 12 d'un transformateur élévateur T dont un enroulement secondaire 14 est couplé au solénoïde 15 qui se met ainsi rapidement en fonction. Le transformateur T comporte un enroulement tertiaire 13 couplé, par l'intermédiaire d'une diode D, à la source d'alimentation 24. Lorsque l'impulsion d'entrée 21 prend fin, l'énergie stockée dans le solénoïde 15 produit un courant dans l'enroulement tertiaire 13, ce qui provoque une mise hors fonction rapide. Le solénoïde 15 peut être utilisé dans une unité d'impression pour commander des marteaux d'impression ou des fils d'impression. Electric control circuit for inductive load. In a circuit for rapidly causing and removing an inductive load in the form of a solenoid 15, an input pulse 21 applied to an input terminal 20 turns on a transistor Q, which has the effect of causing the passage of a current between a DC power source 24 and the primary winding 12 of a step-up transformer T, a secondary winding 14 of which is coupled to the solenoid 15 which thus starts up rapidly. The transformer T has a tertiary winding 13 coupled, via a diode D, to the power source 24. When the input pulse 21 ends, the energy stored in the solenoid 15 produces a current. in the tertiary winding 13, which causes a rapid shutdown. Solenoid 15 can be used in a printing unit to control printing hammers or printing wires.

MECHANICAL CONTROL ENERGY TRANSMISSION DEVICE, PARTICULARLY FOR CONTROLLING THE BRAKING PRESSURE IN A BRAKE.

Electromagnetic actuator and electrical contactor comprising such actuator

一种包括磁路的电磁致动器，该磁路包括与受控移动的移动电枢协作的磁轭。工作线圈(3)被设计为产生磁通量以相对于磁轭(10)移动或保持移动电枢(11)。控制装置(2)被设计为在闭合操作期间提供涌入电压(U)，以及在保持操作期间提供保持电压(％u)。该控制装置(2)包括保持电压(％u)的调节装置，该调节装置包括：涌入电压(U)的第一电压降压变压器(51)，用于提供中间电压(u)；以及中间电压的第二电压降压变压器(52)，用于提供保持电压(％u)。

Operation coil drive device for magnetic contactor

An operation coil drive device includes a drive control unit to perform control to set, for a semiconductor switching element to switch on and off the source voltage applied to an operation coil of a magnetic contactor, a larger ON/OFF time ratio for a circuit-closing control and a smaller ON/OFF time ratio for a holding control, wherein the drive control unit includes: a circuit-closing-control inductance calculation unit to calculate an inductance of the operation coil immediately after a start of the circuit-closing control; a circuit-closing-control resistance value calculation unit to calculate a direct current resistance value of the operation coil based on the calculation result; and a circuit-closing-control switching correction unit to correct the ON/OFF time ratio of the semiconductor switching element for the circuit-closing control based on the calculation result.

Method for controlling an actuator

A method for operating an electromagnetic actuator ( 10 ) with an actuating pin ( 9 ) is proposed which comprises the following steps: —determining a pin actuation actual dead time (t 11 ), during which the magnetic armature ( 15 ) is substantially immobile while a magnetic coil ( 12 ) is supplied with current, wherein the actual dead time ends with the current break-in at the magnetic coil, as a result of counter induction of the magnetic armature overcoming the magnetic force threshold; —determining, before a subsequent pin actuation, the starting time of the magnetic coil current supply, wherein the starting point of the current is advanced compared with that of the target movement start of the pin out of the actuator housing ( 13 ) and the determined actual dead time.

Control circuit arrangement for solenoid valves

The invention provides a control circuit arrangement for solenoid valves, which has a timer adapted to supply the solenoid valve with a higher attraction current during an adjustable time starting with the beginning of a switching signal for the solenoid valve. After the time interval a low hold current flows until the end of the switching signal. For this purpose there is a semiconductor switch adapted to switch the flow of current through the solenoid valve. A logic gate arrangement is connected with an input of the switch and the gate arrangement is supplied with the output signal of the timer arranged to be triggered by the switching signal and the output signal of an oscillation generator. This circuit arrangement makes is possible to reduce a higher attraction current to a lower hold current in a simple and cheap manner, there only being a small overall size and as significant advantages it is possible for the arrangement to be converted for complementary logic.

Fluid Servo Valve and Fluid Servo Apparatus

本发明提供流体伺服阀和流体伺服装置。为了得到均匀的性能，由电磁铁、挡板、磁轭件构成闭环磁路，利用所述电磁铁的磁极和所述挡板之间产生的麦克斯韦吸引力使挡板自身弹性变形，使所述喷嘴与所述挡板的间隔距离可变，由此控制流体压力和流量。与现有伺服阀那样的以支点为中心摆动运动的刚体挡板结构不同，以磁隙的变化直接成为气隙的变化的方式，来构成所述电磁铁、所述磁极、所述喷嘴和所述挡板等。

Circuit arrangement for operating a direct current electromagnet

Precise timing circuit e.g. for diesel engine fuel injector electromagnets - retains holding current in coil by abrupt discharge of stored energy through short-circuiting transistor switch

The coil (1) of a conventional fuel-injection electromagnet is supplied from a battery connection (UB) via a series transistor switch (7) turned on and off by a first control voltage (U1). Another transistor (6) in parallel with the coil is switched by a second control voltage (U2) applied through a resistance (8) and a Zener diode (10) for rapid current interruption. After the relatively high energising current, the circuit provides a holding current by cutting off the series transistor and discharging the coil through the parallel transistor, which functions as a short circuit. ADVANTAGE - Lower holding currents are supplied with more exact timing by a circuit consuming min. power.

Exciting bank and its method about minimizing Breake Electromagnet

本发明涉及电器制动和电梯技术领域，具体来说是一种有关小型化制动电磁铁的激励装置及其方法，包括衔铁、线圈、底盖、导杆、激励装置和壳体，壳体内设有底盖，底盖上设有导杆，导杆与衔铁配合连接，衔铁外圈设有电磁铁绕组，其特征在于所述的电磁铁绕组采用多线圈串联或并联结构，激励装置内设有电子电路。本发明同现有技术相比，组合结构简单可行，技术先进有效，其优点在于：本发明创造提供了两个线圈及其电路，用电磁铁绕组的多线圈串并联的组合，利用电子电路组成的开关形式，使之产生高于吸持工作电流近20倍的效果，所产生的牵引力远超于最小牵引力的技术要求，且节约用电，降低功耗，解决电磁铁温升太高、外壳太烫、材料耐温等级高的问题。