FR2906850A1 - Electromagnetic actuator assembly for controlling e.g. oil engine, has hydraulic/pneumatic amplifier associated to electromagnetic actuator for regulating pressure based on linear/angular displacement of mobile part of actuator - Google Patents
Electromagnetic actuator assembly for controlling e.g. oil engine, has hydraulic/pneumatic amplifier associated to electromagnetic actuator for regulating pressure based on linear/angular displacement of mobile part of actuator Download PDFInfo
- Publication number
- FR2906850A1 FR2906850A1 FR0608837A FR0608837A FR2906850A1 FR 2906850 A1 FR2906850 A1 FR 2906850A1 FR 0608837 A FR0608837 A FR 0608837A FR 0608837 A FR0608837 A FR 0608837A FR 2906850 A1 FR2906850 A1 FR 2906850A1
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- France
- Prior art keywords
- actuator
- linear
- actuator assembly
- electromagnetic actuator
- pressure
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- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B13/0442—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors with proportional solenoid allowing stable intermediate positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/52—Systems for actuating EGR valves
- F02M26/59—Systems for actuating EGR valves using positive pressure actuators; Check valves therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/025—Pressure reducing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50554—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure downstream of the pressure control means, e.g. pressure reducing valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/51—Pressure control characterised by the positions of the valve element
- F15B2211/513—Pressure control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5157—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and a return line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
- F15B2211/5158—Pressure control characterised by the connections of the pressure control means in the circuit being connected to a pressure source and an output member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/52—Pressure control characterised by the type of actuation
- F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/565—Control of a downstream pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
- F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
- F15B2211/7051—Linear output members
- F15B2211/7052—Single-acting output members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Supercharger (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
-1- La présente invention concerne un actionneur électrohydraulique ouThe present invention relates to an electrohydraulic actuator or
électropneumatique avec capteur intégré ou additionnel. Il est constitué : d'un actionneur électrique, linéaire ou rotatif, d'un amplificateur hydraulique ou pneumatique, avec capteur de déplacement 5 (intégré ou additionnel), ou de pression (additionnel). Cet actionneur peut être un élément constitutif d'un système électronique comprenant capteurs, calculateur électronique, actionneurs, permettant la régulation de grandeurs en temps réel avec boucle fermée. La régulation en temps réel , boucle fermée, assure une précision supérieure 10 à celle de la boucle ouverte, possible avec cet actionneur, en version sans capteur. Cet actionneur, comparé aux versions hydraulique ou pneumatique, bénéficie de l'apport de l'électronique à savoir une réponse en temps réel, adaptée à un ou plusieurs paramètres; comparé à une version électrique, 15 il assure des efforts importants sous faible encombrement, et il est moins vulnérable lorsqu' implanté dans des zones à rayonnement thermique élevé. Les dessins annexés illustrent l'invention. La figure 1 représente un mode de réalisation de l'actionneur. La partie électrique de l'actionneur représenté est un actionneur 20 électromagnétique linéaire (1), à aimant mobile (2), et capteur de position intégré. Il pourrait être un moteur couple ou un moteur à courant continu avec transformation de mouvement (rotatif en linéaire) ou associé à un amplificateur rotatif (pression hydraulique ou pneumatique fonction d'une 25 position angulaire du tiroir de distribution). Cette partie électrique comporte un connecteur (3) avec les bornes nécessaires à son alimentation et au signal du capteur. La partie fluidique (hydraulique ou pneumatique), alimenté par une pompe hydraulique, un compresseur, ou la pression atmosphérique (avec dans ce cas 30 une pompe à vide pour la basse pression), comporte: - tiroir (4) à déplacement linéaire (ou rotatif), poussé par l'aimant mobile ou une tige liée à cet aimant mobile (ou entraîné par le moteur rotatif) avec ressort (5) de rappel ou de rattrapage de jeu (actionneur à double sens). - un coulisseau " suiveur ", (6) poussé par la pression engendrée par l'ouverture 40 vers la basse pression, referme ces ouvertures en suivant le tiroir. Ce coulisseau se stabilise lors de la fermeture de l'orifice ouvert par le tiroir et pour une pression PR, dite pression régulée, s'excersant sur sa base annulaire (ou circulaire), proportionnelle à la charge de son ressort de rappel (7) 2906850 - 2- et proportionnelle également à la position linéaire (ou angulaire) du tiroir. Cet actionneur permet donc d'engendrer une pression (hydraulique ou pneumatique), fonction de paramètres traduits en courant alimentant sa partie électrique. electropneumatic with integrated or additional sensor. It consists of: an electric actuator, linear or rotary, a hydraulic or pneumatic amplifier, with displacement sensor 5 (integrated or additional), or pressure (additional). This actuator can be a constituent element of an electronic system comprising sensors, electronic calculator, actuators, allowing the regulation of real-time quantities with closed loop. The closed-loop real-time control provides greater accuracy than the open loop, possible with this actuator, in a sensorless version. This actuator, compared to the hydraulic or pneumatic versions, benefits from the contribution of electronics namely a real-time response, adapted to one or more parameters; compared to an electric version, it provides significant effort under small footprint, and is less vulnerable when implanted in areas of high thermal radiation. The accompanying drawings illustrate the invention. Figure 1 shows an embodiment of the actuator. The electric part of the actuator shown is a linear electromagnetic actuator (1), with a movable magnet (2), and integrated position sensor. It could be a torque motor or a DC motor with motion transformation (rotary in linear) or associated with a rotary amplifier (hydraulic or pneumatic pressure depending on an angular position of the distribution spool). This electrical part comprises a connector (3) with the terminals necessary for its power supply and the sensor signal. The fluidic part (hydraulic or pneumatic), powered by a hydraulic pump, a compressor, or atmospheric pressure (with in this case a vacuum pump for low pressure), comprises: - slide (4) with linear displacement (or rotating), pushed by the movable magnet or a rod connected to this movable magnet (or driven by the rotary motor) with spring (5) for returning or catching play (two-way actuator). - A "follower" slider, (6) pushed by the pressure generated by the opening 40 to the low pressure, closes these openings following the drawer. This slider is stabilized when closing the opening opened by the slide and for a pressure PR, called regulated pressure, excreting on its annular base (or circular), proportional to the load of its return spring (7). 2906850 - 2- and also proportional to the linear (or angular) position of the drawer. This actuator thus makes it possible to generate a pressure (hydraulic or pneumatic), a function of parameters translated into current supplying its electrical part.
Le capteur intégré ou non, renvoie au calculateur un signal indiquant la position du tiroir, ou la valeur de la pression régulée. Cette pression régulée est transmise à un servomoteur (8), directement monté sur cet actionneur ou séparé et relié par une tuyauterie adaptée. Ce servomoteur à membrane déroulante, à piston, à palette, ou autre surface soumise à une pression, permet d'obtenir le déplacement linéaire d'une tige ou rotatif d'un axe, avec une force fonction de la pression régulée et de la surface utile du servomoteur, et dont la position de l'organe commandé sera connue par le signal en retour du capteur intégré ou séparé. Cet ensemble, actionneur électrohydraulique ou électropneumatique, à capteur intégré(ou séparé) avec servomoteur associé peut recevoir de multiples applications dans les différents domaines des automatismes. A titre d'exemples, non limitatifs, nous citerons le contrôle des moteurs thermiques, notamment à allumage commandé ou par compression, (applications véhicules routiers, engins, marine, ferroviaire, industrielle), et en particulier la régulation des turbocompresseurs de suralimentation, simple ou double étage, des systèmes de recirculation des gaz d'échappement, de l'admission variable, de la distribution variable (y compris " Camless" avec un servomoteur à piston hydraulique et un ressort de rappel par soupape, la levée de soupape étant proportionnelle à la pression régulée agissant sur le piston du servomoteur), de la commande du papillon d'air d'admission. Cet actionneur peut aussi être utilisé pour les fonctions liaisons au sol (Freinage électrohydraulique ou électropneumatique, suspension pilotée, assistance de direction). Il peut être également utilisé pour les supports pilotés du moteur. The integrated sensor or not, returns to the computer a signal indicating the position of the drawer, or the value of the regulated pressure. This regulated pressure is transmitted to a servomotor (8) directly mounted on this actuator or separated and connected by a suitable pipe. This servomotor with a rolling diaphragm, piston, paddle, or other surface subjected to pressure, makes it possible to obtain the linear displacement of a rod or rotary of an axis, with a force which is a function of the regulated pressure and the surface. servomotor, and whose position of the controlled member will be known by the feedback signal of the integrated or separate sensor. This assembly, electrohydraulic or electropneumatic actuator, with integrated sensor (or separated) with associated servomotor can receive multiple applications in the various fields of automation. By way of nonlimiting examples, mention may be made of the control of heat engines, in particular spark-ignition engines or compression engines (applications for road vehicles, vehicles, marine, railway, industrial), and in particular the regulation of turbochargers, which are simple or double stage, exhaust gas recirculation systems, variable intake, variable timing (including "Camless" with a hydraulic piston servomotor and a return spring per valve, the valve lift being proportional the regulated pressure acting on the piston of the servomotor), the control of the intake air butterfly. This actuator can also be used for ground link functions (Electrohydraulic or electro-pneumatic braking, controlled suspension, steering assistance). It can also be used for motor-driven supports.
Les sources d'énergie hydraulique existantes, telles que la pompe à huile de lubrification du moteur, la pompe basse pression carburant, ou d' énergie pneumatique existante, compresseur d'air, pompe à vide et pression atmosphérique , peuvent être utilisées. Pompe ou compresseur, additionnel, sont possibles. Existing hydraulic power sources, such as engine lubrication oil pump, low pressure fuel pump, or existing pneumatic energy, air compressor, vacuum pump and atmospheric pressure, can be used. Pump or compressor, additional, are possible.
Les figures 2 et 3 présentent une des variantes possibles en linéaire. La figure 4 est une présentation d'un système avec un calculateur (9) et ses propres capteurs (10) et actionneurs (11) et l'ensemble actionneur û amplificateur (12) objet de l'invention. 2906850 -3- L'ensemble actionneur peut avoir, notamment, les applications générale et particulières suivantes : - Régulation d'une pression, transformée en force régulée par un servomoteur hydraulique ou pneumatique, à partir de différents 5 paramètres physiques transmis à un calculateur électronique avec étage (s) de sortie pilotant un actionneur électromagnétique linéaire ou rotatif, et amplification d'effort entre cet actionneur et le servomoteur lui aussi, linéaire ou rotatif ; l'adjonction d'un capteur, intégré ou séparé, de déplacement de la partie mobile de l'actionneur, 10 ou de la pression régulée, avec retour de signal au calculateur, assure un fonctionnement en boucle de régulation fermée, à partir d'un système électronique agissant en temps réel ou différé. - Applications aux moteurs thermiques du système formé par l'actionneur électromagnétique, avec capteur intégré ou séparé, d'un 15 amplificateur hydraulique ou pneumatique, d'un servomoteur adapté, d'un calculateur électronique relié à ses différents capteurs, pour la régulation de systèmes de suralimentation, de recirculation des gaz d'échappement, pour la commande de by-pass d'échangeur, d'admission variable, de distribution variable (y compris sans arbre à 20 cames), de boîtier papillon, ainsi que la commande de transmissions (embrayage, double embrayage, boîte de vitesses robotisée, automatique, à variation continue). - L'énergie hydraulique ou pneumatique régulée peut être fournie par une pompe à huile, à carburant, à vide, un compresseur existant, ou 25 par une pompe ou un compresseur additionnel. -Applications de cet ensemble actionneur électromagnétique avec capteur intégré ou séparé et régulateur de pression associé, à l'injection d'additif pour dépollution des gaz d'échappement, avec un système comprenant un réservoir d'additif, une pompe électrique, un injecteur 30 alimenté par l'ensemble actionneur - régulateur de pression, objet de l'invention. Le calculateur, en fonction des paramètres de fonctionnement du moteur thermique, détermine une pression régulée, après pompe et en amont de l'injecteur, afm de réguler le débit d'additif injecté. 2906850 -4- - Un seul composant û actionneur électromagnétique combiné à l'amplificateur peut être utilisé pour différentes fonctions avec des servomoteurs différents (et à fortiori, identiques). Plusieurs composants, constitués comme ci-dessus, et identiques peuvent être 5 utilisés avec des servomoteurs différents (et à fortiori identiques) pour assurer différentes fonctions. Cette standardisation au niveau du composant se répercute au niveau de l'étage de sortie du calculateur. - Les exemples d'application précités ne sont pas limitatifs ; toute application nécessitant une régulation d'effort, de pression, par 10 l'intermédiaire de l'ensemble actionneur, amplificateur, objet de l'invention, est revendiquée. - Autres exemples : application freinage électrohydraulique ou électropneumatique, assistance de direction, suspension carrosserie, suspension moteur. 15 - Les applications précitées concernent le domaine automobile. Des applications pour tout autre domaine sont possibles : Aéronautique, marine, ferroviaire, machines agricoles, machines outils, automatisme en général. Figures 2 and 3 show one of the possible variants in linear. Figure 4 is a presentation of a system with a computer (9) and its own sensors (10) and actuators (11) and the actuator-amplifier assembly (12) object of the invention. The actuator assembly may have, in particular, the following general and particular applications: - Regulation of a pressure, transformed into a force regulated by a hydraulic or pneumatic servomotor, from different physical parameters transmitted to an electronic calculator with output stage (s) controlling a linear or rotary electromagnetic actuator, and amplification of effort between this actuator and the actuator itself, linear or rotary; the addition of a sensor, integrated or separate, of displacement of the movable part of the actuator, or of the regulated pressure, with signal feedback to the computer, ensures a closed loop control operation, starting from an electronic system acting in real time or deferred. - Applications to the thermal motors of the system formed by the electromagnetic actuator, with integrated or separate sensor, a hydraulic or pneumatic amplifier, a suitable servomotor, an electronic computer connected to its various sensors, for the regulation of supercharging, exhaust gas recirculation systems, for exchanger bypass, variable intake, variable timing (including without camshaft) control, throttle valve control, and transmissions (clutch, double clutch, automatic, continuously variable, robotized gearbox). Controlled hydraulic or pneumatic energy may be provided by an oil, fuel, vacuum, an existing compressor, or an additional pump or compressor. -Applications of this electromagnetic actuator assembly with integrated or separate sensor and associated pressure regulator, to the injection of additive for exhaust gas pollution control, with a system comprising an additive tank, an electric pump, an injector 30 powered by the actuator - pressure regulator assembly, object of the invention. The computer, according to the operating parameters of the heat engine, determines a regulated pressure, after the pump and upstream of the injector, in order to regulate the injected additive flow rate. A single electromagnetic actuator component combined with the amplifier can be used for different functions with different (and even more so) servo motors. Several components, constituted as above, and identical can be used with different (and even more identical) servomotors to perform different functions. This standardization at the component level is reflected in the output stage of the computer. - The above application examples are not limiting; any application requiring regulation of effort, pressure, through the actuator assembly, amplifier, object of the invention is claimed. - Other examples: Electrohydraulic or electropneumatic braking application, steering assistance, body suspension, engine suspension. 15 - The aforementioned applications relate to the automotive field. Applications for any other field are possible: Aeronautics, marine, railway, agricultural machinery, machine tools, automatism in general.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR0608837A FR2906850A1 (en) | 2006-10-09 | 2006-10-09 | Electromagnetic actuator assembly for controlling e.g. oil engine, has hydraulic/pneumatic amplifier associated to electromagnetic actuator for regulating pressure based on linear/angular displacement of mobile part of actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR0608837A FR2906850A1 (en) | 2006-10-09 | 2006-10-09 | Electromagnetic actuator assembly for controlling e.g. oil engine, has hydraulic/pneumatic amplifier associated to electromagnetic actuator for regulating pressure based on linear/angular displacement of mobile part of actuator |
Publications (1)
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FR2906850A1 true FR2906850A1 (en) | 2008-04-11 |
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FR0608837A Pending FR2906850A1 (en) | 2006-10-09 | 2006-10-09 | Electromagnetic actuator assembly for controlling e.g. oil engine, has hydraulic/pneumatic amplifier associated to electromagnetic actuator for regulating pressure based on linear/angular displacement of mobile part of actuator |
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FR (1) | FR2906850A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510962A (en) * | 1983-06-30 | 1985-04-16 | Borg-Warner Corporation | Precise pressure regulator for a variable output pump |
US5282604A (en) * | 1991-05-30 | 1994-02-01 | Coltec Industries Inc. | Solenoid operated pressure regulating valve |
EP0884466A1 (en) * | 1997-06-13 | 1998-12-16 | Renault | Method and apparatus for correcting the air/fuel ratio of an internal combustion engine |
US20020066441A1 (en) * | 2000-11-17 | 2002-06-06 | Tyler Jeffrey A. | Proportional control valve assembly for exhaust gas recirculation system |
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2006
- 2006-10-09 FR FR0608837A patent/FR2906850A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510962A (en) * | 1983-06-30 | 1985-04-16 | Borg-Warner Corporation | Precise pressure regulator for a variable output pump |
US5282604A (en) * | 1991-05-30 | 1994-02-01 | Coltec Industries Inc. | Solenoid operated pressure regulating valve |
EP0884466A1 (en) * | 1997-06-13 | 1998-12-16 | Renault | Method and apparatus for correcting the air/fuel ratio of an internal combustion engine |
US20020066441A1 (en) * | 2000-11-17 | 2002-06-06 | Tyler Jeffrey A. | Proportional control valve assembly for exhaust gas recirculation system |
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