Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
  • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
  • F02N15/006—Assembling or mounting of starting devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
  • F02D2400/18—Packaging of the electronic circuit in a casing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
  • F02D2400/21—Engine cover with integrated cabling
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
  • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
  • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
  • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
  • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
  • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
  • F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
  • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
  • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
  • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
  • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever

Definitions

• the present invention relates to the technical field of internal combustion engine starters.
• the invention relates to a motor vehicle internal combustion engine starter.
• Such a starter generally comprises an electric motor associated with drive means of the internal combustion engine.
• the drive means are most often adapted to be coupled to the movable members of the internal combustion engine during a startup phase of the latter and to be uncoupled from the internal combustion engine when the latter is running.
• the starter comprises an electromagnetic switch adapted to, firstly, control the power supply of the electric motor and, secondly, control the coupling and uncoupling of the drive means to the moving parts of the combustion engine internal.
• the drive means comprise a launcher which is rotatable on itself and is movable in axial translation between a rest position and a driving position of the internal combustion engine. The launcher is then moved between its rest and driving positions by a lever operated by the electromagnetic switch. Since the starting of the internal combustion engine requires a relatively large driving torque.
• the drive means may comprise a reduction unit which is interposed between the launcher and a drive gear of the electric motor.
• Such a starter gives full satisfaction with regard to its starting function of an internal combustion engine but has the disadvantage of being the source of electromagnetic disturbances which are likely in particular to affect the operation of the equipment. vehicle electronics. However, given the increasing importance of electronic equipment in the management of the operation and safety of a motor vehicle, the risk of failure, following the electromagnetic disturbances generated by the starter, are no longer acceptable.
• an electronic filter which is placed outside the starter being fixed on one or other of the elements constituent parts of the latter.
• Such an electronic filter generally gives satisfaction with regard to its filtering function.
• such a filter has, in particular, the following disadvantages:
• an electric starter for an internal combustion engine comprising:
• an electric motor associated with drive means of the internal combustion engine comprising a positive terminal and a negative terminal
• an electronic filter comprising a positive terminal electrically connected to the positive terminal of the motor (M), and which is adapted to at least attenuate the electromagnetic disturbances generated by the operation of the electric motor.
• the electronic filter is placed inside a starter cover.
• the position of the electronic filter inside a starter cover protects the electronic filter from the weather conditions inside the engine compartment.
• the electronic filter is an integral part of the starter, it is no longer necessary to provide a mounting operation of the electronic filter after the assembly of the starter and in particular to the moment of its integration into the powertrain.
• the fact that the filter is protected by a starter cover avoids the risk of rupture of the filter support or its connections when handling the starter.
• the fact of arranging the filter in the cover allows, that one does not modify the mounting process of the starter. Indeed, in the case of a starter with or without filter the lid can be the same and contain or not contain the filter. This adaptability allows a saving of production time, especially in case of change of production between a starter with and without filter.
• electrically connected it is meant to connect directly by a conductive cable or a conductive plate which has no role other than electrically connect the + terminal of the motor to the filter.
• connecting directly is meant that there is no moving contact or switch to electrically connect the + terminal of the motor to the filter.
• the electronic filter can be placed in various places of the starter.
• the starter comprises:
• a launcher which is mobile in rotation on itself and which is movable in axial translation between a rest position and a driving position of the internal combustion engine
• an electromagnetic switch adapted to, on the one hand, control the power supply of the electric motor and, on the other hand, control the movement of the launcher between its rest position and its driving position, the switch comprising an output terminal connected to the positive terminal of the filter and to the positive terminal of the motor (M),
• At least one cover which partially covers at least the electric motor and / or the electromagnetic switch
• the electronic filter being covered by the lid of the electric motor and / or the electric switch.
• the cover partially covers at least the electric motor and / or the electromagnetic switch.
• the starter comprises a first cover which at least partly covers the electric motor and a second cover which partly covers at least the electromagnetic switch.
• the first cover covers the electronic filter.
• the second cover covers the electronic filter.
• the cover comprises means for immobilizing the electronic filter.
• the electronic filter is pressed against an elastically deformable element of play catching.
• the implementation of such a resiliently deformable play catch element allows relative manufacturing and assembly tolerances. coarse and compatible with inexpensive mass production processes.
• the elastically deformable element of play catching can provide a vibration damping function and thus protect the electronic filter and its connections.
• the electronic filter can be made in any suitable way.
• the electronic filter may comprise connectors crimped on the legs of the constituent electronic components of the filter.
• FIG. 1 is a schematic partially cutaway view of a starter for a heat engine according to the invention.
• FIG. 2 is a partial perspective showing a cover of an electromagnetic switch of the starter illustrated in FIG.
• FIG. 3 is a partial section, along the plane III-III of Figure 2, showing a possible implementation of an electronic filter starter according to the invention.
• FIGS. 4 and 5 are schematic perspectives showing on a larger scale the electronic filter illustrated in Figure 3.
• FIG. 6 is a view similar to Figure 1 showing another possible implementation of an electronic filter of the starter according to the invention.
• FIG. 7 is an electrical diagram comprising a starter, an electromagnetic switch and a filter.
• a starter D according to the invention for a thermal engine comprises a gearbox R on which is fixed an electric motor M controlled by an electromagnetic switch C which also controls a launcher L integrated in the gearbox.
• the electric motor shaft is connected directly to the launcher.
• the launcher L and the gearbox R together form drive means of the internal combustion engine.
• the electromagnetic switch C comprises two external terminals 1 and 2 for connection to a circuit, not shown, electrical of the vehicle equipped with the starter D.
• the terminals 1 and 2 are connected in particular to a power supply circuit 3 of the electric motor M
• the supply circuit 3, shown in phantom, extends inside the contactor C, the gearbox R and the electric motor M.
• the electric circuit is shown very simply in FIG.
• FIG. 7 represents a circuit diagram of the electric circuit 3.
• a battery B supplies the motor, the filter and the switch.
• the mechanical part of the switch to advance and back the starter gear is not shown.
• the invention proposes to integrate in the electric circuit 3 an electronic filter 10 disposed inside the starter D.
• the electronic filter 10 is placed inside a cover 11 of the electromagnetic contactor C.
• the cover 11 is then shaped to define a chamber 12 for receiving the electronic filter 10 as is apparent from Figures 2 and 3.
• the electronic filter 10 is of the passive type and comprises, as shown in Figures 4 and 5, a capacitor 13, the two lugs 14 and 15 are each associated with a connector 16,17.
• Each connector 16, 17 is then crimped onto the corresponding dough 14, 15.
• each connector 16, 17 comprises a slot 18 whose width is slightly smaller than the diameter of the corresponding tab so that, when the tab is forcibly engaged in the slot or the slot on the tab, a large contact surface is obtained between the connector and said tab.
• the quality of this connection can, in addition, be improved by the realization of a single weld point not shown.
• the electronic filter 10 is thus disposed inside the chamber 12 so as to be clamped between an inner plate 19 and the inner face of the lid 11, so that the electronic filter is perfectly immobilized by the lid 11.
• the electronic filter 10 and the other components of the contactor electromagnetic C like the inner plate 19, here is implemented an elastically deformable element 20 against which the filter 10 is pressed.
• the elastically deformable element 20 is in this case interposed between the filter 10 and the inner plate 19.
• the elastically deformable element 20 could also be interposed between the filter 10 and the cover 12. It could also be envisaged to implement two elastically deformable elements one interposed between the electronic filter 10 and the inner plate 19 while the other is interposed between the electronic filter 10 and the cover 11.
• the elastically deformable element 20 can be made anyway suitable and for example in the form of a tongue of a natural or synthetic elastomeric material. It should be noted that the elastically deformable element 20 also provides a damping function of the vibrations experienced by the electronic filter 10
• one of the connectors 16 of the filter 10 comprises a connecting finger 25 which extends outside the cover 11 so as to be connected by a metal tongue 26 to a terminal 1 of the contactor C.
• the other connector 17 comprises a slot 27 intended to engage on a connection pad 28 inside the contactor C. This embodiment of the connectors 16 and 17 facilitates the integration of the electronic filter in the starter B.
• FIG. 6 shows another variant of the invention according to which the starter D comprises, on the one hand, a first cover 11 at least partly covering the electromagnetic contactor C and, on the other hand, a second cover 30 covering at least part of the electric motor M.
• the electronic filter 10 is disposed inside the electric motor so as to be covered by the second cover 30.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Motor Or Generator Frames (AREA)
• Details Of Connecting Devices For Male And Female Coupling (AREA)
• Casings For Electric Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=47291148

Family Applications (1)

Country Status (6)

Families Citing this family (1)

Family Cites Families (54)

• 2011
  • 2011-11-18 FR FR1160505A patent/FR2982911B1/fr not_active Expired - Fee Related
• 2012
  • 2012-11-15 US US14/359,274 patent/US9605640B2/en not_active Expired - Fee Related
  • 2012-11-15 KR KR1020147013114A patent/KR20140095493A/ko not_active Application Discontinuation
  • 2012-11-15 WO PCT/FR2012/052634 patent/WO2013072631A2/fr active Application Filing
  • 2012-11-15 CN CN201280056500.6A patent/CN103946536B/zh not_active Expired - Fee Related
  • 2012-11-15 EP EP12795554.0A patent/EP2780578A2/de not_active Withdrawn

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