FR2804574A1 - Car wheel anti lock electronic command unit having electronic vane command with electronics/power components with connection grid power electronics circuit directly connected. - Google Patents

Car wheel anti lock electronic command unit having electronic vane command with electronics/power components with connection grid power electronics circuit directly connected. Download PDF

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Publication number
FR2804574A1
FR2804574A1 FR0001092A FR0001092A FR2804574A1 FR 2804574 A1 FR2804574 A1 FR 2804574A1 FR 0001092 A FR0001092 A FR 0001092A FR 0001092 A FR0001092 A FR 0001092A FR 2804574 A1 FR2804574 A1 FR 2804574A1
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FR
France
Prior art keywords
electronics
connection grid
electronic
command
power components
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.)
Granted
Application number
FR0001092A
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French (fr)
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FR2804574B1 (en
Inventor
Christian Kempf
Christian Dutoya
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.)
Continental Automotive France SAS
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Siemens Automotive SA
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Publication date
Application filed by Siemens Automotive SA filed Critical Siemens Automotive SA
Priority to FR0001092A priority Critical patent/FR2804574B1/en
Publication of FR2804574A1 publication Critical patent/FR2804574A1/en
Application granted granted Critical
Publication of FR2804574B1 publication Critical patent/FR2804574B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0239—Electronic boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units

Abstract

The anti lock command unit has electronics (6) and power components (8) commanding the electronic vane command (32). The connection grid (7) and the command power electronics circuit are directly related.

Description

La présente invention est relative à un boîtier de commande pour dispositif d'antiblocage de roues, et plus particulièrement à un tel boîtier comportant une grille de connexion à laquelle sont reliées des électrovannes. The present invention relates to a control unit for an anti-lock device for wheels, and more particularly to such a unit comprising a connection grid to which solenoid valves are connected.

On connaît de la technique antérieure, par exemple du document DE 19518518, un boîtier de commande pour antiblocage, comportant d'une part un circuit imprimé portant une électronique de commande de bobines d'électrovannes et d'autre part une grille de connexion, obtenue par découpe d'une plaque de cuivre, à laquelle les bobines sont reliées électriquement et mécaniquement. Pour dissiper la chaleur générée par les composants de puissance de l'électronique de commande, le circuit imprimé est fixé directement sur un la paroi metallique d'un bloc hydraulique dans lequel sont montées les électrovannes. Si ce système est performant sur le plan de la dissipation thermique, il présente l'inconvénient de nécessiter une adaptation mécanique particulière du boîtier de commande au bloc hydraulique, et des opérations de montage coûteuses. Known from the prior art, for example from document DE 19518518, an anti-lock control box, comprising on the one hand a printed circuit carrying electronics for controlling solenoid valve coils and on the other hand a connection grid, obtained by cutting a copper plate, to which the coils are electrically and mechanically connected. To dissipate the heat generated by the power components of the control electronics, the printed circuit is fixed directly to a metal wall of a hydraulic block in which the solenoid valves are mounted. If this system is efficient in terms of heat dissipation, it has the disadvantage of requiring a particular mechanical adaptation of the control unit to the hydraulic block, and costly assembly operations.

La présente invention a donc pour but de proposer un boîtier de commande qui permette une bonne dissipation thermique sans présenter les inconvénients de la technique antérieure. The present invention therefore aims to provide a control unit which allows good heat dissipation without having the drawbacks of the prior art.

On atteint ces buts de l'invention, ainsi que d'autres qui apparaîtront dans la suite de la présente description, au moyen d'un boîtier de commande pour dispositif d'antiblocage de roues, comportant une électronique de commande de bobines d'électrovannes, ladite électronique comprenant des composants de puissance, et une grille de connexion à laquelle les bobines sont reliées électriquement et mécaniquement, caractérisé en ce que les composants de puissance de l'électronique de commande sont directement reportés sur la grille de connexion. These objects of the invention are achieved, as well as others which will appear in the remainder of the present description, by means of a control unit for an anti-lock braking device, comprising electronic control devices for solenoid valve coils. , said electronics comprising power components, and a connection grid to which the coils are electrically and mechanically connected, characterized in that the power components of the control electronics are directly transferred to the connection grid.

Suivant une caractéristique importante de la présente invention, la grille de connexion est au moins partiellement surmoulée dans l'épaisseur d'une paroi du boîtier de commande. According to an important characteristic of the present invention, the connection grid is at least partially overmolded in the thickness of a wall of the control unit.

D'autres caractéristiques et avantages du boîtier suivant l'invention apparaîtront à la lecture de la description qui va suivre et à l'examen du dessin annexé dans lequel - la figure 1 représente une vue en coupe du boitier selon l'invention, et - la figure 2 représente une vue en plan de la grille de connexion équipée de ses composants. Other characteristics and advantages of the box according to the invention will appear on reading the description which follows and on examining the appended drawing in which - FIG. 1 represents a sectional view of the box according to the invention, and - FIG. 2 represents a plan view of the connection grid fitted with its components.

On se réfère à la figure 1 dans laquelle on a représenté un dispositif d'antiblocage constitué d'un boïtier électronique 1 et d'un bloc hydraulique 2 rendus solidaires par des agrafes 4 et un joint d'étanchéité 5. Des électrovannes 3 sont placées entre le boîtier 1 et le bloc hydraulique 2 et sont constituées en deux parties : une partie hydraulique 31 solidaire du bloc hydraulique 2 et une bobine 32 reliée au boîtier électronique 1 par l'intermédiaire de pattes de connexion 33. Ces pattes de connexion sont directement brasées sur une grille de connexion 7. La grille de connexion 7 est réalisée par découpe et emboutissage d'une tôle de matériau conducteur, par exemple une tôle de cuivre étamé d'une épaisseur de l'ordre de 0,3 à 0,7 millimètre. Classiquement, les différentes pistes conductrices constituant la grille de connexion 7 sont temporairement maintenues entre elles par des parties non découpées. La grille de connexion 7 est ensuite surmoulée avec une matière plastique non conductrice qui après refroidissement, assure le maintien en position relative des différentes pistes et permet la suppression des parties non découpées pour éliminer les courts-circuits. Referring to Figure 1 in which there is shown an anti-lock device consisting of an electronic unit 1 and a hydraulic block 2 made integral by staples 4 and a seal 5. Solenoid valves 3 are placed between the housing 1 and the hydraulic block 2 and are made up of two parts: a hydraulic part 31 integral with the hydraulic block 2 and a coil 32 connected to the electronic unit 1 via connection lugs 33. These connection lugs are directly brazed on a connection grid 7. The connection grid 7 is produced by cutting and stamping a sheet of conductive material, for example a sheet of tinned copper with a thickness of the order of 0.3 to 0.7 millimeter. Conventionally, the various conductive tracks constituting the connection grid 7 are temporarily held together by uncut parts. The connection grid 7 is then overmolded with a non-conductive plastic which, after cooling, ensures the relative position of the various tracks and allows the removal of the uncut parts to eliminate short circuits.

Avantageusement, ce surmoulage est réalisé lors de l'opération de moulage du boîtier 1, ce qui permet d'obtenir une grille de connexion 7 solidaire du boîtier 1 et dans laquelle les positions respectives des trous adaptés à recevoir les pattes de connexion 33 des bobines ont une position précisément déterminée. Advantageously, this overmolding is carried out during the molding operation of the housing 1, which makes it possible to obtain a connection grid 7 secured to the housing 1 and in which the respective positions of the holes adapted to receive the connection tabs 33 of the coils have a precisely determined position.

Certaines pistes de la grille de connexion se terminent en forme de broches 71 adaptées à coopérer avec des trous correspondants d'un circuit imprimé 6 dans lesquels elles s'engagent et sont connectées électriquement par brasage. Ces broches peuvent comporter un épaulement (non représenté) permettant de maintenir le circuit imprimé 6 en position dans le boîtier 1. Certain tracks of the connection grid terminate in the form of pins 71 adapted to cooperate with corresponding holes of a printed circuit 6 in which they engage and are electrically connected by soldering. These pins may have a shoulder (not shown) enabling the printed circuit 6 to be held in position in the housing 1.

Selon l'invention, le circuit imprimé 6 comporte essentiellement des composants électroniques de faible puissance, par exemple microprocesseur, mémoires, etc. Tous les composants de puissance dédiés à l'alimentation des bobines tels que les transistors de puissance 8 ou les diodes de recirculation 8', propres à commuter les courants importants circulant dans les bobines 32 sont avantageusement reportés directement sur la grille de connexion 7. Cette disposition présente le double avantage d'une part de réduire la surface du circuit imprimé 6 et donc son coût, et d'autre part de permettre une meilleure dissipation de la chaleur générée par les composants de puissance 8,8', ceux-ci étant en contact direct avec la grille 7 qui fait office de radiateur. A cette fin, lors du surmoulage de la paroi du boîtier 1 incorporant la grille de connexion 7, des zones exemptes de matière plastique sont prévues aux endroits nécessaires au report des composants de puissance 8 et 8', ainsi qu'autour des trous de passage des pattes de connexion 33 des bobines. According to the invention, the printed circuit 6 essentially comprises low power electronic components, for example microprocessor, memories, etc. All the power components dedicated to supplying the coils such as the power transistors 8 or the recirculation diodes 8 ′, suitable for switching the large currents flowing in the coils 32 are advantageously transferred directly to the connection grid 7. This provision has the double advantage on the one hand of reducing the surface of the printed circuit 6 and therefore its cost, and on the other hand of allowing better dissipation of the heat generated by the power components 8,8 ', these being in direct contact with the grid 7 which acts as a radiator. To this end, during the overmolding of the wall of the housing 1 incorporating the connection grid 7, zones free of plastic material are provided in the places necessary for the transfer of the power components 8 and 8 ′, as well as around the through holes connection lugs 33 of the coils.

Le montage de l'ensemble boîtier électronique s'effectue en montant le circuit imprimé 6, équipé des composants e faible puissance, sur les broches 71 de la grille de connexion 7 préalablement surmoulée dans la paroi du boîtier. Les composants de puissance 8,8' sont reportés sur la grille de connexion 7, sur la face de la grille en regard du bloc hydraulique 2, et soudés ou brasés à celle-ci. Les bobines 32 sont alors disposées de manière à ce que leurs pattes de connexion 33 passent au travers des trous correspondants de la grille 7. L'ensemble est alors retourné pour soudure ou brasure de ces pattes sur la grille 7, à partir de l'extérieur du boîtier. Afin de protéger et d'isoler ces connexions, on peut ensuite couler une résine d'étanchéité 9, telle qu'une résine polyuréthane sur le dessus du boitier. L'ensemble du boîtier 1 ainsi équipé est alors monté sur le bloc hydraulique 2 et fixé par les agrafes 4. The assembly of the electronic unit assembly is carried out by mounting the printed circuit 6, equipped with low power components, on the pins 71 of the connection grid 7 previously overmolded in the wall of the housing. The power components 8,8 'are transferred to the connection grid 7, on the face of the grid opposite the hydraulic block 2, and welded or brazed thereto. The coils 32 are then arranged so that their connection lugs 33 pass through corresponding holes in the grid 7. The assembly is then turned over for soldering or soldering of these lugs on the grid 7, starting from the outside of the housing. In order to protect and isolate these connections, a sealing resin 9, such as a polyurethane resin, can then be poured on top of the case. The entire housing 1 thus equipped is then mounted on the hydraulic block 2 and fixed by the clips 4.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté qui n'a été donné qu'à titre d'exemple. Ainsi, les composants de puissance pourraient être reportés coté extérieur du boîtier 1, permettant ainsi de n'avoir d'opération de soudure que d'un seul coté, et être noyés dans la résine d'étanchéité 9.Of course, the invention is not limited to the embodiment described and shown which has been given only by way of example. Thus, the power components could be transferred to the outside of the housing 1, thus making it possible to have a welding operation only on one side, and to be embedded in the sealing resin 9.

Inversement, les pattes de connexion 33 des bobines pourraient être conformées de telle sorte qu'elles puissent être soudées à la grille de connexion 7 sur sa face intérieure, par exemple par soudure par points, électrique ou par laser. Dans ce cas, la paroi du boitier 1 peut être continue côté extérieur, et la résine d'étanchéité 9 devient superflue. Conversely, the connection tabs 33 of the coils could be shaped so that they can be welded to the connection grid 7 on its inner face, for example by spot welding, electric or laser. In this case, the wall of the housing 1 can be continuous on the outside, and the sealing resin 9 becomes superfluous.

Claims (3)

<B><U>REVENDICATIONS</U></B><B><U>REVENDICATIONS</U> </B> 1. Boîtier (1) de commande pour dïsposïtït d'antibiocage de roues, comportant une électronique (6,8,8') de commande de bobines (32) d'électrovannes, ladite électronique comprenant des composants de puissance (8,8'), et une grille de connexion (7) à laquelle les bobines sont reliées électriquement et mécaniquement, caractérisé en ce que les composants de puissance de l'électronique de commande sont directement reportés sur la grille de connexion (7).1. Control box (1) for anti-jamming of wheels, comprising electronics (6,8,8 ') for controlling solenoid valve coils (32), said electronics comprising power components (8,8' ), and a connection grid (7) to which the coils are electrically and mechanically connected, characterized in that the power components of the control electronics are directly transferred to the connection grid (7). 2. Boîtier selon la revendication 1, caractérisé en ce que la grille de connexion (7) est au moins partiellement surmoulée dans l'épaisseur d'une paroi du boîtier de commande.2. Box according to claim 1, characterized in that the connection grid (7) is at least partially overmolded in the thickness of a wall of the control box. 3. Boîtier selon la revendication 2, caractérisé en ce que les composants de puissance sont reportés sur des plages de report de la grille de connexion servant de dissipateur thermique.3. Housing according to claim 2, characterized in that the power components are transferred to the transfer pads of the connection grid serving as a heat sink.
FR0001092A 2000-01-28 2000-01-28 CONTROL BOX FOR ANTI-LOCKING DEVICE Expired - Fee Related FR2804574B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0001092A FR2804574B1 (en) 2000-01-28 2000-01-28 CONTROL BOX FOR ANTI-LOCKING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0001092A FR2804574B1 (en) 2000-01-28 2000-01-28 CONTROL BOX FOR ANTI-LOCKING DEVICE

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FR2804574A1 true FR2804574A1 (en) 2001-08-03
FR2804574B1 FR2804574B1 (en) 2004-07-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865344A1 (en) * 2004-08-06 2005-07-22 Siemens Vdo Automotive Electronic device e.g. injection controller, for vehicle`s engine compartment, has module present outside case, resin spread between module and cover of case to insulate passage in cover, and joint arranged between base and case cover

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3514440A1 (en) * 1985-04-20 1986-10-23 Robert Bosch Gmbh, 7000 Stuttgart HOUSING FOR RECEIVING ELECTRICAL CONTROL UNITS, ESPECIALLY FOR MOTOR VEHICLES
DE4314312A1 (en) * 1993-04-30 1994-11-03 Teves Gmbh Alfred Electro-hydraulic pressure control device
DE4321331A1 (en) * 1992-07-31 1995-01-05 Bosch Gmbh Robert Add-on control unit
US5452948A (en) * 1994-10-07 1995-09-26 The Whitaker Corporation Apparatus and method for electronically controlled hydraulic actuator
EP0673805A1 (en) * 1994-03-23 1995-09-27 SUMITOMO WIRING SYSTEMS, Ltd. Integrated unit assembly for antilock brake system
DE19518522A1 (en) * 1995-05-19 1996-11-21 Siemens Ag Anti-locking braking control device for vehicle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3514440A1 (en) * 1985-04-20 1986-10-23 Robert Bosch Gmbh, 7000 Stuttgart HOUSING FOR RECEIVING ELECTRICAL CONTROL UNITS, ESPECIALLY FOR MOTOR VEHICLES
DE4321331A1 (en) * 1992-07-31 1995-01-05 Bosch Gmbh Robert Add-on control unit
DE4314312A1 (en) * 1993-04-30 1994-11-03 Teves Gmbh Alfred Electro-hydraulic pressure control device
EP0673805A1 (en) * 1994-03-23 1995-09-27 SUMITOMO WIRING SYSTEMS, Ltd. Integrated unit assembly for antilock brake system
US5452948A (en) * 1994-10-07 1995-09-26 The Whitaker Corporation Apparatus and method for electronically controlled hydraulic actuator
DE19518522A1 (en) * 1995-05-19 1996-11-21 Siemens Ag Anti-locking braking control device for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2865344A1 (en) * 2004-08-06 2005-07-22 Siemens Vdo Automotive Electronic device e.g. injection controller, for vehicle`s engine compartment, has module present outside case, resin spread between module and cover of case to insulate passage in cover, and joint arranged between base and case cover

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