EP2220314A2 - Lock with a device for immobilizing the rotor - Google Patents

Lock with a device for immobilizing the rotor

Info

Publication number
EP2220314A2
EP2220314A2 EP08856107A EP08856107A EP2220314A2 EP 2220314 A2 EP2220314 A2 EP 2220314A2 EP 08856107 A EP08856107 A EP 08856107A EP 08856107 A EP08856107 A EP 08856107A EP 2220314 A2 EP2220314 A2 EP 2220314A2
Authority
EP
European Patent Office
Prior art keywords
motor
switches
control
motors
circuit according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08856107A
Other languages
German (de)
French (fr)
Inventor
Alain Desarmenien
Frédéric MALTAVERNE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Minebea AccessSolutions France SAS
Original Assignee
Valeo Securite Habitacle SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Securite Habitacle SAS filed Critical Valeo Securite Habitacle SAS
Publication of EP2220314A2 publication Critical patent/EP2220314A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
    • E05B9/084—Fastening of lock cylinders, plugs or cores
    • E05B9/086—Fastening of rotors, plugs or cores to an outer stator
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying

Definitions

  • the invention relates to the control of electric motors, in particular DC motors.
  • motorized motor vehicle systems such as trunk or seat motorization systems
  • the technical trend is towards the use of several small electric motors, allowing a small footprint, instead of a single large motor .
  • motorized opening systems tailgates or chests
  • two tubular drive actuators having a space equivalent to that of conventional pneumatic assistance cylinders, each of the actuators being equipped with an engine electrical and being arranged for example in parallel pneumatic cylinders or instead thereof.
  • an H-bridge comprises four switches arranged in a substantially H-shaped form, the motor to be controlled being located in the middle of the four switches and controlled as a function of the on or off state of the switches.
  • SUBSTITUTE SHEET (RULE 26) only one H-bridge. However, this configuration does not allow independent control of the different motors. Now some applications, such as, for example, the opening or closing of a trunk, require independent and simultaneous control of each engine to allow effective actuation of the trunk and to avoid a torsion movement on the trunk.
  • the invention therefore aims to overcome these disadvantages of the prior art by providing independent and simultaneous control of several engines in a simple and inexpensive way.
  • the aim of the invention is to provide a control circuit for a plurality of DC motors able to be controlled independently of one another, comprising for each motor an H-bridge composed of a first branch and a second branch for controlling the associated motor characterized in that said second branches of the H-bridges are made by two switches forming a common branch of all the H-bridges and sized to receive a current equivalent to the sum of the motor currents so said motors can be driven simultaneously and independently by the application of control signals associated with the first branches.
  • the invention also relates to a control circuit of which all the H bridges are in the same housing.
  • each switch of the first branches of the H bridges is adapted to receive an associated PWM pulse width modulation signal.
  • the PWM signals are independent of each other.
  • control circuit comprises an upper part comprising upper switches connected to a common power supply, and a lower part comprising lower switches connected to ground.
  • control circuit comprises means for measuring the control current of said motors.
  • the invention also relates to a device for controlling several engines in a motor vehicle comprising a control circuit according to the invention.
  • the invention also relates to a motorized assistance system for an opening of a motor vehicle, the system comprising at least a first and a second drive actuators of the opening from a first position to a second position, for be mounted between the vehicle body and the opening, preferably on opposite sides of the opening, each actuator being equipped with an electric motor and a mechanism transforming the rotational movement of the electric motor into a movement allowing the displacement of the opening, comprising such a steering device.
  • the invention also relates to a system for assisting the actuation of elements of a motor vehicle seat, comprising seat elements that can be moved by means of an individual actuator which comprises a DC motor, and comprising a steering device as specified above.
  • FIG. a control circuit of two DC motors according to the invention
  • FIG. 2 is a timing diagram of the evolution of the switch control signals for controlling the motors in a first direction
  • Figure 3 is a timing chart of the evolution of the switch control signals for motor control in a second direction
  • Figure 4 is a timing diagram of the evolution of the switch control signals for a motor brake control
  • FIG. 5 illustrates a motorized assistance system for an opening of a motor vehicle comprising a control circuit according to the invention
  • FIG. 6 illustrates a motor vehicle seat equipped with a motorized assistance system for actuating a seat element comprising a control circuit according to the invention.
  • FIG. 1 illustrates a control circuit for two motors M1 and M2 with direct current that can be controlled independently of each other according to the invention.
  • the control circuit comprises for each motor Ml, M2 a bridge in H respectively IA, IB.
  • Each bridge in H IA, IB is composed of a first branch 3 and a second branch 5, and is intended for driving the associated motor Ml, or M2.
  • the second branches 5 of the H-bridges are made by two switches
  • the reduction in the number of switches makes it possible to reduce the quantity of heat produced thus making it possible to use smaller heat dissipation radiators or to dispense with radiators by allocating a copper surface to each switch on the printed circuit to limit their size. temperature, which allows a smaller footprint.
  • the switches 7, 9 are sized to receive a current equivalent to the sum of the two motor currents so that the two motors Ml, M2 can be controlled simultaneously and independently by the application of control signals associated with the first branches. In addition, this dimensioning does not require doubling the size and price of these switches 7, 9 which allows for a simple system and reduced cost.
  • the maximum value of the control signal for limiting the current to its maximum value in each motor Ml, M2 is known by the characteristics of the motor and is less than 100%.
  • the two motors Ml, M2 and the bridges H IA, IB associated are set up in the same housing 15.
  • Branch 3 of the H-bridge IA is formed by two switches HA, HB.
  • the branch 3 of the bridge in H IB is formed by two switches 13A, 13B.
  • the first motor Ml is located between the switches HA, HB, and 7, 9 and the second motor M2 is located between the switches 7, 9, and 13A, 13B.
  • Each switch HA, HB, 13A and 13B is adapted to receive a PWM pulse width modulation associated signal so as to allow control of the direction and rotation speed of each motor.
  • the control of the motors Ml, M2 associated with the PWM technology can be realized in opposition of phase which allows a reduction of the power dissipated by the switches and electromagnetic compatibility disturbances.
  • the circuit comprises an upper part connected to a common power supply and a lower part connected to ground.
  • the upper portion includes the upper switches 11A, 7,13A connected together to the power supply, and the lower portion includes the lower switches 11B, 9,13B connected together to ground.
  • Measuring means 17, 19 of the control current of the two motors M1, M2 are put in place to control the balance of forces so as to avoid distortions in the object actuated by the motors M1, M2.
  • the PWM signals are superimposed and therefore independent from each other, and allow control of the direction and speed of rotation of the two motors M1, M2.
  • the control of the two motors Ml is the control of the two motors Ml,
  • M2 in a first direction is provided by the passage of the current in a first direction defined by the fact that the switches HA, 9, 13A are on and that the switches HB, 7, 13B are blocked.
  • switches HB, 7, 13B receive a "low" signal throughout the control in the first direction.
  • the period of a PWM signal is T, and during this period T, the switches HA, 9, 13A receive "high” or “low” alternating signals.
  • the switch HA receives a "high” signal and the switch 13A receives a "low” signal at each beginning of period.
  • the duration of the "high" signal received by the switch HA is defined by the instant t2 from which it then receives a "low” signal up to the instant T.
  • the duration of the "low” signal received by the switch 13A is defined by the instant t1 from which it then receives a "high” signal up to the instant T.
  • switches HA, 9, 13A which receive a "low” signal throughout the control in the second direction, while the switches HB, 7, 13B receive "high” or "low” alternative signals. .
  • the switch HB receives a "high” signal and the switch 13B receives a "low” signal at each beginning of period.
  • the duration of the "high” signal received by the switch HB is defined by the instant t3 from which it receives a “down” signal up to the instant T.
  • the duration of the "low” signal received by the The switch 13B is defined by the instant t4 from which it receives a "high” signal up to the instant T.
  • the duration of the "high” signal received by the switch 7 is defined by the instant t5 from from which it receives a signal "down” until time T.
  • braking is provided by a short circuit DC motors.
  • the switches HB, 9, 13B are on and receive a "high” signal throughout the cycle and the switches HA, 7, 13A are blocked and receive a "low” signal throughout the cycle.
  • the short circuit can also be achieved by blocking the switches HB, 9, 13B, and bypassing the switches HA, 7, 13A.
  • such a control circuit is set up in a control device of several electric motors present in a motor vehicle.
  • a motor vehicle 21 comprising an opening 22 such as a tailgate.
  • opening 22 such as a tailgate.
  • opening of a motor vehicle it also includes the trunk or the side doors of the vehicle.
  • This vehicle 21 is equipped with a motorized assistance system 23 of an opening of a motor vehicle comprising at least a first 23A and a second 23B actuating actuators of the opening 22 from a first position to a second position.
  • a motorized assistance system 23 of an opening of a motor vehicle comprising at least a first 23A and a second 23B actuating actuators of the opening 22 from a first position to a second position.
  • one end of each actuator 23A, 23B is connected to a first articulation 24 to the vehicle body 25 and the other end is connected to a second articulation 26 at the tailgate 22.
  • the first 23A and second 23B actuators are equipped with two DC electric motors controlled by a control device comprising a control circuit as specified above.
  • such a control device can be implemented in a system for assisting the actuation of elements of a motor vehicle seat comprising a plurality of motors.
  • FIG. 6 illustrates a vehicle seat 30 which conventionally comprises a backrest 31, a headrest 33, a seat 35.
  • This seat is equipped with a motorized assistance system with a first actuator 37 to allow the backrest to tilt. 31, a second actuator 39 for moving the headrest 33, a third actuator 41 for moving back and forth the seat cushion 35.
  • Each actuator of a seat member comprises a current motor continuously to make the desired move. All DC motors are connected to the same housing 43 comprising the control device 45 as specified above, allowing the independent and simultaneous operation of all the seat elements.
  • Such a system for assisting the actuation of elements of a seat comprising several engines can also be implemented for a motorized seat of any other means of transport.
  • control device makes it possible to obtain control simultaneously and independently of the different engines.
  • the reduction in the number of switches in the control circuit makes it possible to reduce the quantity of heat produced thus enabling the use of smaller heat dissipation radiators to limit their temperature, which allows a smaller space requirement, without having to need to resize the common switches by doubling their size or price, which allows for a simple and low cost system.

Abstract

The invention relates to a circuit for controlling a plurality of direct current motors (M1, M2) which are capable of being controlled independently of one another, comprising for each motor (M1, M2) an H-shaped bridge (1A, 1B) which is composed of a first branch (3) and a second branch (5) and which is intended for controlling the associated motor. According to the invention, said second branches (5) of the H-shaped bridges (1A, 1B) are embodied by two switches (7, 9) which form a common branch of all the H-shaped bridges and which are dimensioned to receive a current equivalent to the sum of the motor currents such that said motors (M1, M2) can be controlled simultaneously and independently by the application of control signals associated with the first branches (3).

Description

VERROU A DISPOSITI F DE BLOCAGE DU ROTOR LOCK WITH ROTOR BLOCKING DEVICE
L'invention concerne le contrôle de moteurs électriques, en particulier de moteurs à courant continu. Dans les systèmes motorisés des véhicules automobiles, tels que des systèmes de motorisation du coffre ou du siège, la tendance technique s'oriente vers l'utilisation de plusieurs petits moteurs électriques, permettant un encombrement réduit, à la place d'un unique gros moteur. En particulier dans les systèmes motorisés d'ouvrants (hayons ou coffres), il est préférable d'utiliser deux actionneurs d'entraînement tubulaires ayant un encombrement équivalent à celui des vérins pneumatiques d'assistance classiques, chacun des actionneurs étant équipé d'un moteur électrique et étant disposé par exemple en parallèle des vérins pneumatiques ou à la place de ceux-ci.The invention relates to the control of electric motors, in particular DC motors. In motorized motor vehicle systems, such as trunk or seat motorization systems, the technical trend is towards the use of several small electric motors, allowing a small footprint, instead of a single large motor . In particular in motorized opening systems (tailgates or chests), it is preferable to use two tubular drive actuators having a space equivalent to that of conventional pneumatic assistance cylinders, each of the actuators being equipped with an engine electrical and being arranged for example in parallel pneumatic cylinders or instead thereof.
Cette augmentation du nombre de moteurs engendre le besoin de contrôler de manière sûre et efficace ces différents moteurs. Généralement, un moteur requiert un contrôle du sens et de la vitesse de rotation.This increase in the number of engines generates the need to control these different engines safely and effectively. Generally, a motor requires a control of the direction and the speed of rotation.
Cette fonction est de façon connue assurée par un pont en H permettant d'inverser la polarité et de faire varier la vitesse des moteurs.This function is known in the art by an H bridge to reverse the polarity and vary the speed of the motors.
Classiquement un pont en H comprend quatre commutateurs arrangés selon une forme sensiblement en H, le moteur à contrôler étant situé au milieu des quatre commutateurs et piloté en fonction de l'état passant ou bloqué des commutateurs.Conventionally, an H-bridge comprises four switches arranged in a substantially H-shaped form, the motor to be controlled being located in the middle of the four switches and controlled as a function of the on or off state of the switches.
Pour contrôler plusieurs moteurs il est prévu de mettre en parallèle plusieurs pont en H. Cependant cette configuration est coûteuse et encombrante.To control several motors, it is planned to parallel several H-bridges. However, this configuration is expensive and cumbersome.
On pourra se référer par exemple à la demande de brevet US2007/0075657 qui propose un pilotage de plusieurs moteurs à l'aide d'un multi-pont en H comprenant plusieurs ponts en H en parallèle et un circuit de pilotage par pulsations permettant un contrôle des différents moteurs.Reference may be made, for example, to the patent application US2007 / 0075657 which proposes a control of several motors using a multi-bridge in H comprising several H bridges in parallel and a control circuit by pulsations allowing a control different engines.
En effet, cette configuration entraîne un encombrement important dû au nombre de composants nécessaires, ce qui entraîne également une mauvaise dissipation thermique. II est également connu de piloter plusieurs moteurs à courant continu à partirIndeed, this configuration leads to a large footprint due to the number of components required, which also leads to poor heat dissipation. It is also known to control several DC motors from
FEUILLE DE REMPLACEMENT (RÈGLE 26) d'un seul pont en H. Toutefois, cette configuration ne permet pas le contrôle indépendant des différents moteurs. Or certaines applications, comme par exemple, l'ouverture ou la fermeture d'un coffre, requièrent un contrôle indépendant et simultané de chaque moteur pour permettre un actionnement efficace du coffre et pour éviter un mouvement de torsion sur le coffre.SUBSTITUTE SHEET (RULE 26) only one H-bridge. However, this configuration does not allow independent control of the different motors. Now some applications, such as, for example, the opening or closing of a trunk, require independent and simultaneous control of each engine to allow effective actuation of the trunk and to avoid a torsion movement on the trunk.
L'invention a donc pour objectif de palier ces inconvénients de l'art antérieur en proposant un pilotage indépendant et simultané de plusieurs moteurs de façon simple et peu coûteuse.The invention therefore aims to overcome these disadvantages of the prior art by providing independent and simultaneous control of several engines in a simple and inexpensive way.
Plus précisément l'invention a pour objectif de fournir un circuit de pilotage de plusieurs moteurs à courant continu aptes à être pilotés indépendamment les uns par rapport aux autres, comprenant pour chaque moteur un pont en H composé d'une première branche et d'une seconde branche, destiné au pilotage du moteur associé caractérisé en ce que lesdites secondes branches des ponts en H sont réalisées par deux commutateurs formant une branche commune de tous les ponts en H et dimensionnés pour recevoir un courant équivalent à la somme des courants moteurs de sorte que lesdits moteurs peuvent être pilotés simultanément et indépendamment par l'application de signaux de commande associés aux premières branches.More precisely, the aim of the invention is to provide a control circuit for a plurality of DC motors able to be controlled independently of one another, comprising for each motor an H-bridge composed of a first branch and a second branch for controlling the associated motor characterized in that said second branches of the H-bridges are made by two switches forming a common branch of all the H-bridges and sized to receive a current equivalent to the sum of the motor currents so said motors can be driven simultaneously and independently by the application of control signals associated with the first branches.
L'invention a aussi pour objet un circuit de pilotage dont tous les ponts en H sont dans un même boîtier. Selon un mode de réalisation préféré, chaque commutateur des premières branches des ponts en H est apte à recevoir un signal associé de modulation par largeur d'impulsion PWM.The invention also relates to a control circuit of which all the H bridges are in the same housing. According to a preferred embodiment, each switch of the first branches of the H bridges is adapted to receive an associated PWM pulse width modulation signal.
Dans ce cas, les signaux PWM sont indépendants les uns par rapport aux autres.In this case, the PWM signals are independent of each other.
Avantageusement, le circuit de pilotage comporte une partie supérieure comprenant des commutateurs supérieurs reliés à une alimentation électrique commune, et une partie inférieure comprenant des commutateurs inférieurs reliés à la masse.Advantageously, the control circuit comprises an upper part comprising upper switches connected to a common power supply, and a lower part comprising lower switches connected to ground.
De façon préférentielle, le circuit de pilotage comprend des moyens de mesure du courant de commande desdits moteurs.Preferably, the control circuit comprises means for measuring the control current of said motors.
L'invention concerne également un dispositif de pilotage de plusieurs moteurs dans un véhicule automobile comprenant un circuit de pilotage selon l'invention. L'invention concerne encore un système d'assistance motorisée d'un ouvrant d'un véhicule automobile, le système comprenant au moins un premier et un second actionneurs d'entraînement de l'ouvrant depuis une première position vers une seconde position, destinés à être montés entre la carrosserie du véhicule et l'ouvrant, de préférence sur des côtés opposés de l'ouvrant, chaque actionneur étant équipé d'un moteur électrique et d'un mécanisme transformant le mouvement de rotation du moteur électrique en un mouvement permettant le déplacement de l'ouvrant, comprenant un tel dispositif de pilotage.The invention also relates to a device for controlling several engines in a motor vehicle comprising a control circuit according to the invention. The invention also relates to a motorized assistance system for an opening of a motor vehicle, the system comprising at least a first and a second drive actuators of the opening from a first position to a second position, for be mounted between the vehicle body and the opening, preferably on opposite sides of the opening, each actuator being equipped with an electric motor and a mechanism transforming the rotational movement of the electric motor into a movement allowing the displacement of the opening, comprising such a steering device.
L'invention concerne encore un système d'assistance à l'actionnement d'éléments d'un siège de véhicule automobile, comprenant des élément de siège pouvant être déplacés au moyen d'un actionneur individuel qui comprend un moteur à courant continu, et comprenant un dispositif de pilotage tel que précisé précédemment.The invention also relates to a system for assisting the actuation of elements of a motor vehicle seat, comprising seat elements that can be moved by means of an individual actuator which comprises a DC motor, and comprising a steering device as specified above.
D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante d'un mode de réalisation préférentiel, donné à titre de simple exemple illustratif et non limitatif, et des dessins annexés parmi lesquels : la figure 1 illustre un circuit de pilotage de deux moteurs à courant continu selon l'invention ; la figure 2 est un chronogramme de l'évolution des signaux de commande des commutateurs pour une commande des moteurs dans une première direction ; la figure 3 est un chronogramme de l'évolution des signaux de commande des commutateurs pour une commande des moteurs dans une deuxième direction ; la figure 4 est un chronogramme de l'évolution des signaux de commande des commutateurs pour une commande de freinage des moteurs ; la figure 5 illustre un système d'assistance motorisée d'un ouvrant d'un véhicule automobile comprenant un circuit de pilotage selon l'invention ; la figure 6 illustre un un siège de véhicule automobile équipé d'un système d'assistance motorisée à l'actionnement d'un élément du siège comprenant un circuit de pilotage selon l'invention.Other features and advantages of the invention will appear more clearly on reading the following description of a preferred embodiment, given as a simple illustrative and nonlimiting example, and the appended drawings in which: FIG. a control circuit of two DC motors according to the invention; FIG. 2 is a timing diagram of the evolution of the switch control signals for controlling the motors in a first direction; Figure 3 is a timing chart of the evolution of the switch control signals for motor control in a second direction; Figure 4 is a timing diagram of the evolution of the switch control signals for a motor brake control; FIG. 5 illustrates a motorized assistance system for an opening of a motor vehicle comprising a control circuit according to the invention; FIG. 6 illustrates a motor vehicle seat equipped with a motorized assistance system for actuating a seat element comprising a control circuit according to the invention.
La figure 1 illustre un circuit de pilotage de deux moteurs Ml et M2 à courant continu aptes à être pilotés indépendamment les uns par rapport aux autres selon l'invention.FIG. 1 illustrates a control circuit for two motors M1 and M2 with direct current that can be controlled independently of each other according to the invention.
Le circuit de pilotage comprend pour chaque moteur Ml, M2 un pont en H respectivement IA, IB. Chaque pont en H IA, IB est composé d'une première branche 3 et d'une seconde branche 5, et est destiné au pilotage du moteur associé Ml, ou M2. Les secondes branches 5 des ponts en H sont réalisées par deux commutateursThe control circuit comprises for each motor Ml, M2 a bridge in H respectively IA, IB. Each bridge in H IA, IB is composed of a first branch 3 and a second branch 5, and is intended for driving the associated motor Ml, or M2. The second branches 5 of the H-bridges are made by two switches
7, 9 formant une branche 5 commune aux deux ponts en H, IA, IB.7, 9 forming a branch 5 common to the two bridges H, IA, IB.
La diminution du nombre de commutateurs permet de réduire la quantité de chaleur produite permettant ainsi l'utilisation de radiateurs de dissipation thermique de plus petite dimension ou de se passer de radiateurs en allouant une surface de cuivre à chaque commutateur sur le circuit imprimé pour limiter leur température, ce qui permet un moindre encombrement.The reduction in the number of switches makes it possible to reduce the quantity of heat produced thus making it possible to use smaller heat dissipation radiators or to dispense with radiators by allocating a copper surface to each switch on the printed circuit to limit their size. temperature, which allows a smaller footprint.
Les commutateurs 7, 9 sont dimensionnés pour recevoir un courant équivalent à la somme des deux courants moteurs de sorte que les deux moteurs Ml, M2 peuvent être pilotés simultanément et indépendamment par l'application de signaux de commande associés aux premières branches. De plus, ce dimensionnement ne nécessite pas de doubler la taille ni le prix de ces commutateurs 7, 9 ce qui permet d'avoir un système simple et à coût réduit.The switches 7, 9 are sized to receive a current equivalent to the sum of the two motor currents so that the two motors Ml, M2 can be controlled simultaneously and independently by the application of control signals associated with the first branches. In addition, this dimensioning does not require doubling the size and price of these switches 7, 9 which allows for a simple system and reduced cost.
En effet, la valeur maximum du signal de commande permettant de limiter le courant à sa valeur maximum dans chaque moteur Ml, M2 est connue par les caractéristiques du moteur et est inférieure à 100%.Indeed, the maximum value of the control signal for limiting the current to its maximum value in each motor Ml, M2 is known by the characteristics of the motor and is less than 100%.
Les deux moteurs Ml, M2 et les ponts en H IA, IB associés sont mis en place dans un même boîtier 15.The two motors Ml, M2 and the bridges H IA, IB associated are set up in the same housing 15.
La branche 3 du pont en H IA est formée par deux commutateurs HA, HB. De même, la branche 3 du pont en H IB est formée par deux commutateurs 13 A, 13B. Le premier moteur Ml est situé entre les commutateurs HA, HB, et 7, 9 et le deuxième moteur M2 est situé entre les commutateurs 7, 9, et 13 A, 13B.Branch 3 of the H-bridge IA is formed by two switches HA, HB. Similarly, the branch 3 of the bridge in H IB is formed by two switches 13A, 13B. The first motor Ml is located between the switches HA, HB, and 7, 9 and the second motor M2 is located between the switches 7, 9, and 13A, 13B.
Chaque commutateur HA, HB, 13A et 13B est apte à recevoir un signal associé de modulation par largeur d'impulsion PWM de façon à permettre le contrôle du sens et de la vitesse de rotation de chaque moteur. Le pilotage des moteurs Ml, M2 associés à la technologie PWM peut être réalisé en opposition de phase ce qui permet une réduction de la puissance dissipée par les commutateurs et des perturbations de compatibilité électromagnétique.Each switch HA, HB, 13A and 13B is adapted to receive a PWM pulse width modulation associated signal so as to allow control of the direction and rotation speed of each motor. The control of the motors Ml, M2 associated with the PWM technology can be realized in opposition of phase which allows a reduction of the power dissipated by the switches and electromagnetic compatibility disturbances.
Le circuit comprend une partie supérieure reliée à une alimentation électrique commune et une partie inférieure reliée à la masse. La partie supérieure comporte les commutateurs supérieurs 11A,7,13A reliés ensemble à l'alimentation électrique, et la partie inférieure comporte les commutateurs inférieurs 11B,9,13B reliés ensemble à la masse.The circuit comprises an upper part connected to a common power supply and a lower part connected to ground. The upper portion includes the upper switches 11A, 7,13A connected together to the power supply, and the lower portion includes the lower switches 11B, 9,13B connected together to ground.
Des moyens de mesure 17, 19 du courant de commande des deux moteurs Ml, M2 sont mis en place pour contrôler l'équilibre des forces de façon à éviter les distorsions au niveau de l'objet actionné par les moteurs Ml, M2.Measuring means 17, 19 of the control current of the two motors M1, M2 are put in place to control the balance of forces so as to avoid distortions in the object actuated by the motors M1, M2.
On va maintenant décrire le fonctionnement du circuit selon l'invention.We will now describe the operation of the circuit according to the invention.
Comme l'illustrent les chronogrammes des figures 2 à 4, les signaux PWM sont superposés et donc indépendants les uns par rapport aux autres, et permettent un contrôle du sens et de la vitesse de rotation des deux moteurs Ml, M2. En se référant au chronogramme de la figure 2, le pilotage des deux moteurs Ml,As illustrated by the timing diagrams of FIGS. 2 to 4, the PWM signals are superimposed and therefore independent from each other, and allow control of the direction and speed of rotation of the two motors M1, M2. Referring to the timing diagram of FIG. 2, the control of the two motors Ml,
M2 dans une première direction est assurée par le passage du courant dans un premier sens défini par le fait que les commutateurs HA, 9, 13A sont passants et que les commutateurs HB, 7, 13B sont bloqués.M2 in a first direction is provided by the passage of the current in a first direction defined by the fact that the switches HA, 9, 13A are on and that the switches HB, 7, 13B are blocked.
En effet, les commutateurs HB, 7, 13B reçoivent un signal « bas » tout au long de la commande dans la première direction.Indeed, the switches HB, 7, 13B receive a "low" signal throughout the control in the first direction.
La période d'un signal PWM est T, et pendant cette période T, les commutateurs HA, 9, 13A reçoivent des signaux alternatifs « haut » ou « bas ».The period of a PWM signal is T, and during this period T, the switches HA, 9, 13A receive "high" or "low" alternating signals.
Pour le bon fonctionnement du circuit, dans le cycle de pilotage dans la première direction, le commutateur HAreçoit un signal « haut » et le commutateur 13A reçoit un signal « bas » à chaque début de période.For proper operation of the circuit, in the control cycle in the first direction, the switch HA receives a "high" signal and the switch 13A receives a "low" signal at each beginning of period.
La durée du signal « haut » reçu par le commutateur HA est définie par l'instant t2 à partir duquel il reçoit alors un signal « bas » jusqu'à l'instant T. De même, la durée du signal « bas » reçu par le commutateur 13A est définie par l'instant tl à partir duquel il reçoit alors un signal « haut » jusqu'à l'instant T. En se référant maintenant au chronogramme de la figure 3, lors du pilotage des deux moteurs Ml, M2 dans une direction inverse par rapport à la première, le passage du courant s'effectue dans un second sens défini par le fait que les commutateurs HB, 7, 13B sont passants et que les commutateurs 1 IA, 9, 13A sont bloqués.The duration of the "high" signal received by the switch HA is defined by the instant t2 from which it then receives a "low" signal up to the instant T. Similarly, the duration of the "low" signal received by the switch 13A is defined by the instant t1 from which it then receives a "high" signal up to the instant T. Referring now to the timing diagram of FIG. two motors Ml, M2 in a direction opposite to the first, the passage of the current takes place in a second direction defined by the fact that the switches HB, 7, 13B are on and the switches 1 IA, 9, 13A are blocked.
En effet, ce sont les commutateurs HA, 9, 13A qui reçoivent un signal « bas » tout au long de la commande dans la deuxième direction, tandis que les commutateurs HB, 7, 13B reçoivent des signaux alternatifs « haut » ou « bas ».Indeed, it is the switches HA, 9, 13A which receive a "low" signal throughout the control in the second direction, while the switches HB, 7, 13B receive "high" or "low" alternative signals. .
Pour le bon fonctionnement du circuit, dans un cycle de pilotage dans la deuxième direction, le commutateur HB reçoit un signal « haut » et le commutateur 13B reçoit un signal « bas », à chaque début de période. La durée du signal « haut » reçu par le commutateur HB est définie par l'instant t3 à partir duquel il reçoit un signal « bas » jusqu'à l'instant T. De même, la durée du signal « bas » reçu par le commutateur 13B est définie par l'instant t4 à partir duquel il reçoit un signal « haut » jusqu'à l'instant T. Enfin, la durée du signal « haut » reçu par le commutateur 7 est définie par l'instant t5 à partir duquel il reçoit un signal « bas » jusqu'à l'instant T.For proper operation of the circuit, in a control cycle in the second direction, the switch HB receives a "high" signal and the switch 13B receives a "low" signal at each beginning of period. The duration of the "high" signal received by the switch HB is defined by the instant t3 from which it receives a "down" signal up to the instant T. Similarly, the duration of the "low" signal received by the The switch 13B is defined by the instant t4 from which it receives a "high" signal up to the instant T. Finally, the duration of the "high" signal received by the switch 7 is defined by the instant t5 from from which it receives a signal "down" until time T.
Comme l'illustre le chronogramme de la figure 4, le freinage est assuré par un court circuit des moteurs à courant continu. En effet les commutateurs HB, 9, 13B sont passants et reçoivent un signal « haut » tout au long du cycle et les commutateurs HA, 7, 13A sont bloqués et reçoivent un signal « bas » tout au long du cycle. Un temps de latence δt durant lequel tous les commutateurs reçoivent un signal « bas » précède cette opération. Le court-circuit peut être également réalisé en bloquant les commutateurs HB, 9, 13B, et en laissant passants les commutateurs HA, 7, 13A.As shown in the timing diagram of Figure 4, braking is provided by a short circuit DC motors. Indeed, the switches HB, 9, 13B are on and receive a "high" signal throughout the cycle and the switches HA, 7, 13A are blocked and receive a "low" signal throughout the cycle. A latency time δt during which all switches receive a "low" signal precedes this operation. The short circuit can also be achieved by blocking the switches HB, 9, 13B, and bypassing the switches HA, 7, 13A.
Selon un mode de réalisation préféré, un tel circuit de pilotage est mis en place dans un dispositif de pilotage de plusieurs moteurs électriques présents dans un véhicule automobile.According to a preferred embodiment, such a control circuit is set up in a control device of several electric motors present in a motor vehicle.
Sur la figure 5, est représenté un véhicule automobile 21 comprenant un ouvrant 22 tel qu'un hayon. Bien entendu, par ouvrant d'un véhicule automobile, on comprend également le coffre ou encore les portes latérales du véhicule.In Figure 5, there is shown a motor vehicle 21 comprising an opening 22 such as a tailgate. Of course, by opening of a motor vehicle, it also includes the trunk or the side doors of the vehicle.
Ce véhicule 21 est équipé d'un système 23 d'assistance motorisée d'un ouvrant d'un véhicule automobile comprenant au moins un premier 23A et un second 23B actionneurs d'entraînement de l'ouvrant 22 depuis une première position vers une seconde position. A cet effet une extrémité de chaque actionneur 23A, 23B est reliée à une première articulation 24 à la carrosserie 25 du véhicule et l'autre extrémité est reliée à une seconde articulation 26 au niveau du hayon 22. Les premier 23 A et second 23B actionneurs sont équipés de deux moteurs électriques à courant continu pilotés par un dispositif de pilotage comprenant un circuit de pilotage tel que précisé précédemment.This vehicle 21 is equipped with a motorized assistance system 23 of an opening of a motor vehicle comprising at least a first 23A and a second 23B actuating actuators of the opening 22 from a first position to a second position. For this purpose one end of each actuator 23A, 23B is connected to a first articulation 24 to the vehicle body 25 and the other end is connected to a second articulation 26 at the tailgate 22. The first 23A and second 23B actuators are equipped with two DC electric motors controlled by a control device comprising a control circuit as specified above.
Selon un autre mode de réalisation, un tel dispositif de pilotage peut être mis en oeuvre dans un système d'assistance à l'actionnement d'éléments d'un siège de véhicule automobile comprenant plusieurs moteurs.According to another embodiment, such a control device can be implemented in a system for assisting the actuation of elements of a motor vehicle seat comprising a plurality of motors.
La figure 6 illustre un siège 30 de véhicule qui comporte classiquement un dossier 31, un appui-tête 33, une assise 35. Ce siège est équipé d'un système d'assistance motorisée avec un premier actionneur 37 pour permettre l'inclinaison du dossier 31, un deuxième actionneur 39 pour le déplacement de l'appui-tête 33, un troisième actionneur 41 pour le déplacement d'avant en arrière de l'assise du siège 35. Chaque actionneur d'un élément de siège comprend un moteur à courant continu pour opérer le déplacement souhaité. Tous les moteurs à courant continu sont reliés à un même boîtier 43 comportant le dispositif de pilotage 45 tel que précisé précédemment, permettant l'actionnement indépendant et simultané des tous les éléments du siège. Un tel système d'assistance à l'actionnement d'éléments d'un siège comprenant plusieurs moteurs peut également être mis en oeuvre pour un siège motorisé de tout autre moyen de transport.FIG. 6 illustrates a vehicle seat 30 which conventionally comprises a backrest 31, a headrest 33, a seat 35. This seat is equipped with a motorized assistance system with a first actuator 37 to allow the backrest to tilt. 31, a second actuator 39 for moving the headrest 33, a third actuator 41 for moving back and forth the seat cushion 35. Each actuator of a seat member comprises a current motor continuously to make the desired move. All DC motors are connected to the same housing 43 comprising the control device 45 as specified above, allowing the independent and simultaneous operation of all the seat elements. Such a system for assisting the actuation of elements of a seat comprising several engines can also be implemented for a motorized seat of any other means of transport.
On comprend qu'un tel dispositif de pilotage permet d'obtenir un pilotage simultanément et indépendamment des différents moteurs. En outre, la diminution du nombre de commutateurs dans le circuit de pilotage permet de réduire la quantité de chaleur produite permettant ainsi l'utilisation de radiateurs de dissipation thermique de plus petite dimension pour limiter leur température, ce qui permet un moindre encombrement, sans avoir besoin de redimensionner les commutateurs communs en doublant leur taille ou leur prix, ce qui permet d'avoir un système simple et à coût réduit. It is understood that such a control device makes it possible to obtain control simultaneously and independently of the different engines. In addition, the reduction in the number of switches in the control circuit makes it possible to reduce the quantity of heat produced thus enabling the use of smaller heat dissipation radiators to limit their temperature, which allows a smaller space requirement, without having to need to resize the common switches by doubling their size or price, which allows for a simple and low cost system.

Claims

REVENDICATIONS
1. Circuit de pilotage de plusieurs moteurs à courant continu (Ml, M2) aptes à être pilotés indépendamment les uns par rapport aux autres, comprenant pour chaque moteur (Ml, M2) un pont en H (IA, IB) composé d'une première branche (3) et d'une seconde branche (5), destiné au pilotage du moteur associé (Ml, M2) caractérisé en ce que lesdites secondes branches (5) des ponts en H (IA, IB) sont réalisées par deux commutateurs (7, 9) formant une branche commune de tous les ponts en H et dimensionnés pour recevoir un courant équivalent à la somme des courants moteurs de sorte que lesdits moteurs (Ml, M2) peuvent être pilotés simultanément et indépendamment par l'application de signaux de commande associés aux premières branches (3). A driving circuit for a plurality of DC motors (Ml, M2) capable of being driven independently of each other, comprising for each motor (Ml, M2) an H bridge (IA, IB) consisting of a first branch (3) and a second branch (5) for controlling the associated motor (Ml, M2), characterized in that said second branches (5) of the H bridges (IA, IB) are made by two switches (7, 9) forming a common branch of all the H-bridges and dimensioned to receive a current equivalent to the sum of the driving currents so that said motors (M1, M2) can be driven simultaneously and independently by the application of signals control associated with the first branches (3).
2. Circuit de pilotage selon la revendication 1, caractérisé en ce que tous les ponts en H (IA, IB) sont dans un même boîtier (15).2. Driver circuit according to claim 1, characterized in that all the H bridges (IA, IB) are in the same housing (15).
3. Circuit de pilotage selon l'une des revendications 1 et 2, caractérisé en ce que chaque commutateur (HA, HB, 13A, 13B) des premières branches (3) des ponts en H (IA, IB) est apte à recevoir un signal associé de modulation par largeur d'impulsion PWM.3. Driver circuit according to one of claims 1 and 2, characterized in that each switch (HA, HB, 13A, 13B) of the first branches (3) of the bridges H (IA, IB) is adapted to receive a PWM pulse width modulation associated signal.
4. Circuit de pilotage selon la revendication 3, caractérisé en ce que les signaux PWM sont indépendants les uns par rapport aux autres.Pilot circuit according to Claim 3, characterized in that the PWM signals are independent of one another.
5. Circuit de pilotage selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il comporte une partie supérieure comprenant des commutateurs supérieurs (HA, 7, 13A) reliés à une alimentation électrique commune, et une partie inférieure comprenant des commutateurs inférieurs (HB, 9, 13B) reliés à la masse.5. Driver circuit according to any one of claims 1 to 4, characterized in that it comprises an upper part comprising upper switches (HA, 7, 13A) connected to a common power supply, and a lower part comprising lower switches (HB, 9, 13B) connected to ground.
6. Circuit de pilotage selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend des moyens de mesure (17, 19) du courant de commande desdits moteurs (Ml, M2). 6. Control circuit according to any one of claims 1 to 5, characterized in that it comprises measuring means (17, 19) of the control current of said motors (Ml, M2).
7. Dispositif de pilotage de plusieurs moteurs dans un véhicule automobile caractérisé en ce qu'il comprend un circuit de pilotage selon l'une quelconque des revendications précédentes.7. Device for controlling multiple engines in a motor vehicle characterized in that it comprises a control circuit according to any one of the preceding claims.
8. Système d'assistance motorisée (23) d'un ouvrant (22) d'un véhicule automobile (21), le système comprenant au moins un premier (23A) et un second (23B) actionneurs d'entraînement de l'ouvrant (22) depuis une première position vers une seconde position, destinés à être montés entre la carrosserie (25) du véhicule et l'ouvrant (22), de préférence sur des côtés opposés de l'ouvrant (22), chaque actionneur (23 A, 23B) étant équipé d'un moteur électrique et d'un mécanisme transformant le mouvement de rotation du moteur électrique en un mouvement permettant le déplacement de l'ouvrant (22), caractérisé en ce qu'il comprend un dispositif de pilotage selon la revendication 7.8. Motorized assistance system (23) of an opening (22) of a motor vehicle (21), the system comprising at least a first (23A) and a second (23B) drive actuators of the opening (22) from a first position to a second position, to be mounted between the vehicle body (25) and the sash (22), preferably on opposite sides of the sash (22), each actuator (23) A, 23B) being equipped with an electric motor and a mechanism transforming the rotational movement of the electric motor into a movement allowing the movement of the opening (22), characterized in that it comprises a control device according to claim 7.
9. Système d'assistance à l'actionnement d'éléments d'un siège (30) de véhicule automobile, comprenant des éléments (31, 33, 35) de siège pouvant être déplacés au moyen d'un actionneur individuel qui comprend un moteur à courant continu, caractérisé en ce qu'il comprend un dispositif de pilotage (45) selon la revendication 7. 9. System for assisting the actuation of elements of a motor vehicle seat (30), comprising seat elements (31, 33, 35) movable by means of an individual actuator which comprises an engine direct current device, characterized in that it comprises a control device (45) according to claim 7.
EP08856107A 2007-12-06 2008-12-04 Lock with a device for immobilizing the rotor Withdrawn EP2220314A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0708509A FR2924734B1 (en) 2007-12-06 2007-12-06 LOCK WITH ROTOR BLOCKING DEVICE
PCT/EP2008/066772 WO2009071618A2 (en) 2007-12-06 2008-12-04 Lock with a device for immobilizing the rotor

Publications (1)

Publication Number Publication Date
EP2220314A2 true EP2220314A2 (en) 2010-08-25

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ID=39744784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08856107A Withdrawn EP2220314A2 (en) 2007-12-06 2008-12-04 Lock with a device for immobilizing the rotor

Country Status (3)

Country Link
EP (1) EP2220314A2 (en)
FR (1) FR2924734B1 (en)
WO (1) WO2009071618A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2746133B1 (en) * 1996-03-15 1998-04-10 ROTARY LOCK FOR A MOTOR VEHICLE PROVIDED WITH A BAYONET RING FOR LOCKING ITS ROTOR
FR2885631B1 (en) * 2005-05-10 2008-09-05 Valeo Securite Habitacle Sas LOCK WITH ROTOR FASTENING ELEMENT
DE102006061224B3 (en) * 2006-12-20 2008-01-17 Schliessanlagen Gmbh Pfaffenhain Fixing a locking-cylinder on to a lock, involves coupling the locking-cylinder to the lock in lock housing, via associated key

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR2924734A1 (en) 2009-06-12
WO2009071618A2 (en) 2009-06-11
FR2924734B1 (en) 2010-01-08
WO2009071618A9 (en) 2010-06-17

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