Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
  • F16H61/0003—Arrangement or mounting of elements of the control apparatus, e.g. valve assemblies or snapfittings of valves; Arrangements of the control unit on or in the transmission gearbox
  • F16H61/0006—Electronic control units for transmission control, e.g. connectors, casings or circuit boards
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K3/00—Apparatus or processes for manufacturing printed circuits
  • H05K3/0058—Laminating printed circuit boards onto other substrates, e.g. metallic substrates
  • H05K3/0061—Laminating printed circuit boards onto other substrates, e.g. metallic substrates onto a metallic substrate, e.g. a heat sink
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K3/00—Apparatus or processes for manufacturing printed circuits
  • H05K3/22—Secondary treatment of printed circuits
  • H05K3/28—Applying non-metallic protective coatings
  • H05K3/284—Applying non-metallic protective coatings for encapsulating mounted components
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K5/00—Casings, cabinets or drawers for electric apparatus
  • H05K5/0026—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units
  • H05K5/0082—Casings, cabinets or drawers for electric apparatus provided with connectors and printed circuit boards [PCB], e.g. automotive electronic control units specially adapted for transmission control units, e.g. gearbox controllers
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K1/00—Printed circuits
  • H05K1/02—Details
  • H05K1/14—Structural association of two or more printed circuits
  • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K1/00—Printed circuits
  • H05K1/02—Details
  • H05K1/14—Structural association of two or more printed circuits
  • H05K1/148—Arrangements of two or more hingeably connected rigid printed circuit boards, i.e. connected by flexible means
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
  • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
  • H05K2201/10227—Other objects, e.g. metallic pieces
  • H05K2201/10401—Eyelets, i.e. rings inserted into a hole through a circuit board
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
  • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
  • H05K2201/10227—Other objects, e.g. metallic pieces
  • H05K2201/10409—Screws
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
  • H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
  • H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
  • H05K2203/1305—Moulding and encapsulation
  • H05K2203/1327—Moulding over PCB locally or completely

Definitions

• the invention relates to a transmission control device for a transmission of a vehicle.
• gearbox control units are manufactured as an assembly, which can be later mechanically and electrically connected to the corresponding gear.
• a transmission control unit includes a component (such as a microcontroller, a memory, a power output stage, resistors,
• Capacitors, etc. populated substrate or circuit carrier.
• so-called bare-die components are used for the semiconductor components, which do not have their own housing.
• the pitch distances of these components can also be very small, which can then be very sensitive to short circuits due to conductive, even very small foreign particles. Therefore, the assembled substrates are usually protected after installation in a housing with gel or poured into plastic.
• DE 10 2005 046 826 A1 shows a transmission control unit with a carrier, on which several flexible conductor foils can be laminated, which can serve to contact sensors, plug parts or hydraulic valves.
• Embodiments of the present invention may advantageously enable a gearbox controller to be manufactured, assembled, and / or modified faster and more cheaply.
• the invention relates to a transmission control device for a transmission of a vehicle.
• the transmission is arranged in the drive train of the vehicle and / or may serve to a speed or torque of a
• the vehicle may, for example, a
• the transmission control unit comprises a central module, which comprises a carrier plate, electronic components arranged on the carrier plate and a housing for the electronic components, wherein the carrier plate has an opening for receiving a
• a support plate which may be mechanically rigid, can be
• a plastic circuit board for example, be a plastic circuit board, a ceramic plate or a metal plate, or a combination thereof.
• Support plate for receiving a fastener may be provided only in a metal plate and / or plastic plate on which a circuit board (without opening) is mounted.
• the electronic components may include, for example, a microcontroller.
• the central module can carry a bridge circuit for generating a supply voltage for an electric motor and / or an associated filter circuit.
• the transmission control unit comprises at least one peripheral module, the further electrical and / or electronic components of the
• Gearbox controller carries, and at least one flexible conductor foil which connects the central module with the peripheral module. It is understood that that
• Transmission control unit may include several peripheral modules, which may be connected via one or more flexible conductor foils to the central module.
• a flexible conductor foil or flex foil may comprise a plurality of conductor tracks which are accommodated between two plastic films.
• the peripheral module or modules each include another, their own
• the carrier plate has a further opening for receiving a further fastening means for securing the peripheral module to the transmission.
• This support plate may also be mechanically rigid and / or be a printed circuit board made of plastic or ceramic.
• the transmission control unit for the central module and each peripheral module on its own support plate, which can be separately connected to each other with the transmission.
• the carrier plates have all the openings (such as eyelets, recesses, holes and / or bores) with which attaches the respective module to the transmission with a fastening means in the form of a screw or rivet can be.
• the modules are due to the flexible conductor foils spatially mutually flexible and changes in the relative position of the modules to each other, for example due to space adjustments in or around the transmission, can be implemented without much difficulty.
• the arrangement of the modules can be changed, for example, because the location of a sensor changed or another sensor is to be integrated.
• the central module and / or certain peripheral modules can be manufactured in a few specialized locations.
• bare-die placement and subsequent protection of the devices may be accomplished by pouring or a lid that seals directly against the circuit substrate.
• the assembly of the modules by means of flexible conductor foils can then take place on site in the countries of the respective end user. It can be dispensed with expensive transport packaging (which must be hermetically sealed, without moisture, without particles, for the transport of open bare-die circuits).
• the modular design allows a simpler variant formation, since the individual modules (central module, peripheral module) can be modified separately. It is also possible to offer variants for individual modules that can be combined with each other. For example, different central modules for different maximum currents to supply an electric motor can be designed.
• the housing of the central module comprises a casting compound into which the electronic components are cast. If the housing is formed using the Dam & Fill method, the tool costs are minimized, as no elaborate variant-specific tools are usually required for the manufacture.
• the electronic components can be embedded in a gel or protected with a glued-on lid, a melted lid and / or a lid with a sealing ring.
• the peripheral module comprises a housing for the electrical and / or electronic components, which has a casting compound into which the electrical and / or electronic components
• the peripheral module comprises a sensor, a plug and / or a contact strip.
• the sensor can be arranged on the carrier plate of the peripheral module and can be embedded there in a cast housing.
• a further peripheral module is connected to the central module by means of a cable.
• a cable for example, in a connector / connection for an oil pump and / or a plug for the
• a flexible conductor foil may be unable to conduct enough current.
• the flexible conductor foil can be replaced by one or more flexible cables.
• the gearbox control unit further comprises a centering plate, to which the carrier plate of the central module and the carrier plate of the peripheral module are attached, in order to position the central module and the peripheral module for attachment to the transmission.
• Support plate may for example be a plastic plate on which the
• Transmission control unit are attached to the transmission.
• a robot can grip the gearbox control unit using the carrier plate and then position it.
• the central module only has an opening for attachment to the transmission. It is possible that the central module only has a central opening for receiving a
• Fastening means such as a screw
• the opening for example, surrounded by the housing and / or leads through the support plate.
• the peripheral module has only one opening for attachment to the transmission. In this case, that must be
• gearbox with several fasteners are attached to the transmission, but certain modules (because of their small size) are attached only at one point or only with a fastener.
• the opening of the central module for receiving a fastening means is surrounded by a bush, which acts as a barrier for a casting compound when the housing is produced by casting.
• the socket may be in or above a prior to pouring the components Opening be positioned by the support plate to prevent the still liquid casting compound enters the opening for the fastener.
• the socket is supported on the carrier plate. From a head of the fastener (such as a
• Screw head transmitted to the module force is transmitted from the socket to the support plate, which contacts the housing with an opposite side.
• the bushing passes through the
• the socket can also transmit the power of the head directly to the housing.
• Fastening means supported on the support plate or on the socket and / or a head of the fastening means is at least partially recessed in the socket.
• the bush may at least partially surround the head to reduce the height of the module. It is also possible that the bush serves only as a barrier for the casting compound and the head of the
• Fastener is supported directly on the support plate (possibly with a washer).
• Fig. 1A shows a schematic, perspective view of a
• FIG. 1B shows a schematic cross section through the transmission control unit from FIG. 1A.
• Fig. 2A shows a schematic, perspective view of a
• FIG. 2B shows a schematic cross section through the gearbox control unit from FIG. 2A.
• Fig. 3 shows a schematic, perspective view of a
• FIG. 4 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• FIG. 5 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• FIG. 6 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• FIG. 7 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• FIG 8 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• FIG. 9 shows a schematic cross section through a central module of a transmission control device according to an embodiment of the invention.
• Embodiments of the invention Fig. 1 A and 1 B show a modular transmission control unit 10, the one
• Central module 12 and a plurality of peripheral modules 14 includes, which are connected by means of a flexible conductor foil 16 with the central module 12.
• the central module 12 comprises a support plate 18, on which electronic and electrical components 20 are arranged, such as a microcontroller, a bridge circuit for supplying an electric motor, an electrical filter for the bridge circuit, resistors, capacitors, etc.
• electronic and electrical components 20 such as a microcontroller, a bridge circuit for supplying an electric motor, an electrical filter for the bridge circuit, resistors, capacitors, etc.
• the central module 12 may also be a sensor integrated, for example, if there are close to the central module 12 speeds, paths or positions and / or pressures to be detected.
• the carrier plate 18 may be, for example, a printed circuit board (such as an HDI-PCB, "high density interconnect printed circuit board”), which is equipped with the components 20, such as by gluing, bonding and / or soldering bare-die components and other devices, such as SMD (surface mounted device) devices with their own housings.
• a printed circuit board such as an HDI-PCB, "high density interconnect printed circuit board”
• the components 20 such as by gluing, bonding and / or soldering bare-die components and other devices, such as SMD (surface mounted device) devices with their own housings.
• SMD surface mounted device
• the central module 12 comprises a housing 22, which over the
• Components 20 is arranged and protects them.
• the components 20 may be embedded in a molding compound 24 or may be protected from the environment by a cover (which may be affixed) secured to the support plate 18.
• a flexible conductor foil 16 may have a flexible carrier layer with conductor track and protective lacquer or may have two cover foils (for example of polyimide), between which electrical conductor tracks are arranged.
• Conductor films or flex films 16 are electrically connected, for example, on the exposed edge of the carrier plate.
• a flexible conductor foil 16 can be soldered to a printed circuit board as a carrier plate 18, for example, with iron soldering. The soldering pad transfers heat directly via the closed, upwardly facing other cover sheet on the tracks of the flexible conductor foil 16.
• Protective tape for the soldering iron also called thermode
• the closed side of the flexible conductor foil 16 can then simultaneously serve as chip protection for the connection point.
• the flexible conductor foil 16 can additionally be protected around the solder joints by a peripheral adhesive bond per solder joint or for a group of solder joints.
• the peripheral modules 14 are electrically contacted to the other end of the respective flexible conductor foil.
• the peripheral modules can be, for example, a sensor module 14a or a plug-in module, such as a gear plug 14b, an actuator contact strip 14c or a
• the peripheral modules 14 also include a carrier plate 26 on which the respective electrical and / or electronic components 28 are arranged.
• the support plate 26 may be analogous to the central module 12, a printed circuit board, a plastic plate or a ceramic plate.
• these electronic components 28 may include a sensor IC 28a and optional auxiliary circuitry mounted directly on the flexible conductor foil 16 (which is approximately in turn mounted on the carrier plate 26).
• the components 28 may comprise a contact strip 28b, electrical contacts 28c and / or an additional circuit.
• the components 28 of the peripheral modules 14 may be protected analogously to the central module 12 by a housing 30 which has been generated for example by pouring the components 28 into a casting compound 32.
• the sensor ICs 28a may be protected from the environment (chips, oil) with a polymeric protection (eg, epoxy resin, plastic, globe top).
• the carrier plate 26 may be made of the same plastic as the housing 30.
• sensor dome of the sensor modules 14a may be pure plastic body, through which the flexible conductor foil 16 is positioned and fixed.
• the central module 12 and at least some of the peripheral modules 14 can each be equipped with one or more fastening means 34 (here screws), by means of which they can be positioned and fastened to possibly also spatially branched points of a gearbox.
• the fastening means 34 here screws
• Fasteners 34 are guided through openings 36 and screw-on in the respective support plates 18, 26, via which the modules 12, 14 can be attached. It is possible that the central module 12 and at least some of the
• Peripheral modules 14 are attached to the transmission via only a fastener 34, such as a screw.
• the transmission control unit 10 therefore provides very small tolerance chains for the peripheral modules 14, since no fixed connection via an overhanging carrier plate system is necessary.
• the support plates 18, 26 only need a pre-positioning for
• the central module 12 may, for example, in a specialized factory
• the transmission controller 10 may include a centering plate 38 that positions the individual modules 12, 14 relative to each other.
• the centering plate 38 may be a pure plastic component without integrated conductor tracks.
• the support plates 18, 26 are attached.
• the centering plate 38 may be disposed below or above the modules 12, 14.
• To protect the flexible conductor foils 16 may serve a cover plate 40 which is mounted from above as a protective plate.
• each module 12, 14 has its own attachment points.
• the connection to the neighboring component takes place only via a flex foil (possibly with relief waves) and / or via the centering plate 38, which only takes over the pre-centering for mounting on the transmission component, but not the functional centering, and therefore sufficient clearance between the modules 12, 14 and can provide the centering plate 38.
• the transmission control unit 10 can also be represented without a centering plate 38. This can be done in one
• Pre-positioned transport device to be removed by grippers and attached to gear parts.
• FIG. 3 shows that flexible conductor foils 16 can also be replaced by cables 42, for example if the current conductivity of the flexible conductor foil 16 is insufficient. These cables 42 can be electrically contacted at the edge of the carrier plate 18.
• a transmission plug module 14 b and a plug module 14 d for an oil pump by means of cable 42 with the
• Peripheral modules 14 are analogously connected to the transmission 44.
• the central module 12 is by means of a single or with multiple screws or comparable releasable or non-detachable connections as fastening means 34 directly to a transmission component, such as a
• Hydraulic control plate mechanically and heat dissipating connected.
• Support plate 18 touches the gear 44 surface. This can lead to an optimal heat connection of the central module 12, since only an air gap or oil gap remains between the carrier plate 18 and the transmission 4.
• the support plate 18 and the molded housing 22 or the casting compound 24 each contain a central opening or a hole 36 through which a foot of the fastening means 34 extends.
• the installation of the central module 12 with a central fastening means counteracts a thermo-mechanical deformation of the module 12, which by different
• Thermal expansion coefficient can be caused.
• the central module 12 can move freely at the edge and is not performed in a forced clamping (forced about flatness), which can lead to local overloads inside the module 12 , Thus, a delamination of components 20 on the support plate 18 and / or in the casting compound 24 can be counteracted.
• the head of the fastening means 34 rests directly on the housing 22. Alternatively, a washer may be located between the head and the housing.
• the opening 36 is surrounded by a bush 46, which on the one hand can serve as a storage for the head of the fastening means 34, but on the other hand also serves as a dam or barrier for the casting compound 24 of the housing 22.
• the bushing 46 has a similar
• the bushing 46 may be made of duroplastic. But it is also possible that the sleeve 46 is made of an aluminum alloy, which may have a poor adhesion to the casting material 24. In this case, but no shear forces, but the sleeve 46 dissolves after casting from the housing 22.
• the head of the fastener 34 is supported on the sleeve 46, while the sleeve 46 in Figs. 5, 8 and 9 on the
• Support plate 18 and in FIGS. 6 and 9 supported on the housing 44.
• the socket rests on the support plate 18, while the socket 46 is used only as a barrier for the molding compound 24. It is possible that a washer and / or a tinning between the head of the fastener 34 and the support plate 18 is arranged.
• the sleeve 46 has a cantilevered portion, which can reduce the filling level of the molding compound 24 where only flat components 20 are arranged on the support plate 18.
• the head of the fastening means 34 is at least partially sunk in the bushing 46, for example to reduce the overall height of the central module 12.

Landscapes

• Engineering & Computer Science (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Manufacturing & Machinery (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Details Of Gearings (AREA)
• Control Of Transmission Device (AREA)
• Casings For Electric Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=55273271

Family Applications (1)

Country Status (5)

Families Citing this family (1)

Citations (1)

Family Cites Families (6)

• 2015
  • 2015-03-25 DE DE102015205445.4A patent/DE102015205445A1/de active Pending
• 2016
  • 2016-02-01 EP EP16702415.7A patent/EP3275294A1/de active Pending
  • 2016-02-01 CN CN201680017770.4A patent/CN107409473B/zh active Active
  • 2016-02-01 WO PCT/EP2016/052043 patent/WO2016150598A1/de active Application Filing
  • 2016-02-01 KR KR1020177026857A patent/KR20170131840A/ko unknown

Patent Citations (1)

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