EP2321522B1 - Verfahren zum einspuren eines andrehritzels einer startvorrichtung in einen zahnkranz einer brennkraftmaschine - Google Patents

Verfahren zum einspuren eines andrehritzels einer startvorrichtung in einen zahnkranz einer brennkraftmaschine Download PDF

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Publication number
EP2321522B1
EP2321522B1 EP09781230.9A EP09781230A EP2321522B1 EP 2321522 B1 EP2321522 B1 EP 2321522B1 EP 09781230 A EP09781230 A EP 09781230A EP 2321522 B1 EP2321522 B1 EP 2321522B1
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EP
European Patent Office
Prior art keywords
teeth
gear rim
pinion
starting pinion
starting
Prior art date
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Active
Application number
EP09781230.9A
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German (de)
English (en)
French (fr)
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EP2321522A1 (de
Inventor
Sven Hartmann
Juergen Gross
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.)
SEG Automotive Germany GmbH
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SEG Automotive Germany GmbH
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Publication date
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Publication of EP2321522A1 publication Critical patent/EP2321522A1/de
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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
    • F02N11/0851—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
    • F02N11/0855—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear during engine shutdown or after engine stop before start command, e.g. pre-engagement of pinion
    • 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
    • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • F02N11/0844—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop with means for restarting the engine directly after an engine stop request, e.g. caused by change of driver mind
    • 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
    • F02N15/062—Starter drives
    • F02N15/063—Starter drives with resilient shock absorbers
    • 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
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/022—Engine speed
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/041—Starter speed

Definitions

  • the pinion is engaged in the ring gear of the starter device by deliberately and due to technical means that the starter pinion contacts the ring gear at a peripheral speed that is lower than the peripheral speed of the ring gear.
  • This has the advantage that the engagement process of the pinion in the ring gear can take place as in the conventional case of the engagement of a pinion of an ordinary starter in the ring gear.
  • the conventional engagement process causes relatively little wear under normal conditions, which is particularly desirable in a vehicle with a start-stop system. For example, in a vehicle with a start-stop system, the number of starts is up to ten times higher than in vehicles with a conventional start system. against this background, it is particularly desirable to enable low-wear engagement in a start-stop system.
  • the method according to the invention with the features of the main claim has the advantage that when a starter pinion is engaged in the ring gear of an internal combustion engine, there are speed conditions which lead to a relatively gentle, ie. H. wear-free engagement of a pinion in the ring gear is made possible.
  • the peripheral speed of the ring gear is not equal to zero when the starter pinion contacts the ring gear at a peripheral speed.
  • the peripheral speed of the starter pinion is not equal to zero in order to achieve the particular intended kinematic and kinetic conditions.
  • the method is particularly reliable if the peripheral speeds of the ring gear and the pinion gear are oriented in the same direction at their common point of engagement.
  • the toothed ring and also the starter pinion are each designed as externally toothed spur gears, this means that they move in opposite directions of rotation.
  • the circumferential speed of the ring gear at the moment of first contact with the starter pinion or the contacting of the starter pinion with the ring gear the circumferential speed of the ring gear formed by a maximum of the product of 5 meters per second per millimeter and the module of the ring gear is larger in millimeters and slightly larger than the peripheral speed of the pinion.
  • the reliability of the method can be increased in that the starting device has a pinion shaft which drives the starter pinion, a spring force of a spring element acting between the starter pinion and the pinion shaft in the direction of its axis of rotation, the spring element being compressed by contacting the starter pinion with the ring gear ,
  • the reliability of the system is not only improved by the resilient or elastic properties, but at the same time by the associated damping processes, which arise, for example, from the friction of the spring with its counter bearings or any flow damping.
  • the starter pinion is advanced to the ring gear in good time and also achieves a high peripheral speed as intended. Accordingly, it is important that a switching criterion is recognized by a control device and the starter pinion is then advanced in one step towards the ring gear and in another step is rotated, the circumferential speed prevailing on the pinion being less than the circumferential speed when the ring gear is reached Sprocket is.
  • These measures can ensure that the pinion contacts the ring gear at the right moment with a suitable property. It is irrelevant which switching criterion is used here. It is also irrelevant which control unit recognizes the switching criterion.
  • the switching criterion can be a signal that corresponds to a request to switch off the internal combustion engine.
  • the desire to switch off the internal combustion engine may be due, for example, to the fact that the speed of the vehicle is, for example, zero and / or the drive train is open, or the vehicle speed is, for example, below a low speed threshold, for example ⁇ 7 h / km.
  • Another switching criterion can be, for example, a signal which corresponds to a speed characteristic of the ring gear of the internal combustion engine.
  • a speed characteristic of the ring gear would here, for example, be the angular speed of the ring gear or the change in the angular speed of the ring gear, for example below a certain speed threshold, from which a coming standstill of the internal combustion engine can be derived. Such a property could indicate that the internal combustion engine should be switched off (e.g. automatic flywheel system). It is provided that, based on the switching criterion, a point in time is calculated and the starting device is also activated.
  • the starting device is activated (rotation of the starter pinion, toe-in of the starter pinion) in order to have the starter pinion with the suitable property with the ring gear at a suitable time to contact.
  • FIG 1 shows an electrical machine 10 (starting device) in a longitudinal section.
  • This electrical machine 10 has, for example, an electric motor 13 (starter motor) and a pushing device 16.
  • the electric motor 13 and the thrust device 16 are fastened to a common drive end shield 19.
  • the electric motor 13 is used, for example, to drive a starter pinion 22 when it is engaged in the ring gear 25 of the internal combustion engine (not shown here).
  • the electric motor 13 has, as a housing 11, a pole tube 28 which carries pole shoes 31 on its inner circumference, each of which is wound by an excitation coil 300, which is part of an excitation winding 34.
  • the pole shoes 31 in turn surround an armature 37, which has an armature package 43 constructed from lamellae 40 and an armature winding 49 arranged in slots 46.
  • the armature package 43 is pressed onto a drive shaft 44.
  • a commutator 52 is also attached, which is constructed, among other things, from individual commutator segments 55.
  • the commutator segments 55 are electrically connected to the armature winding 49 in a known manner such that when the commutator segments 55 are energized by carbon brushes 58 results in a rotary movement of the armature 37 in the pole tube 28.
  • a power supply 61 supplies both the carbon brushes 58 and the excitation winding 34 with current in the switched-on state.
  • the drive shaft 44 is supported on the commutator side with a shaft journal 64 in a slide bearing 67, which in turn is held stationary in a commutator bearing cover 70.
  • the commutator cover 70 in turn is fastened to the drive end shield 19 by means of tie rods 73 which are arranged distributed over the circumference of the pole tube 28 (screws, for example two, three or four pieces).
  • the pole tube 28 is supported on the drive end shield 19 and the commutator bearing cover 70 on the pole tube 28.
  • a so-called sun gear 80 which is part of a planetary gear 83, adjoins the armature 37 in the drive direction.
  • the sun gear 80 is surrounded by a plurality of planet gears 86, usually three planet gears 86, which are supported on axle journals 92 by means of roller bearings 89.
  • the planet gears 86 roll in a ring gear 95 which is mounted in the pole tube 28.
  • a planet carrier 98 in which the axle journals 92 are received, adjoins the planet wheels 86 in the direction of the driven side.
  • the planet carrier 98 is in turn stored in an intermediate bearing 101 and a slide bearing 104 arranged therein.
  • the intermediate bearing 101 is designed in a cup-shaped manner such that both the planet carrier 98 and the planet gears 86 are accommodated in it.
  • the ring gear 95 is arranged in the pot-shaped intermediate bearing 101 and is ultimately closed by a cover 107 with respect to the armature 37.
  • the intermediate bearing 101 is also supported with its outer circumference on the inside of the pole tube 28.
  • the armature 37 has a further shaft journal 110 on the end of the drive shaft 44 facing away from the commutator 52, which is also received in a slide bearing 113.
  • the plain bearing 113 in turn is received in a central bore of the planet carrier 98.
  • the planet carrier 98 is integrally connected to an output shaft 116. This output shaft is supported with its end 119 facing away from the intermediate bearing 101 in a further bearing 122 which is fastened in the drive end shield 19.
  • the output shaft 116 is divided into different sections: the section which is arranged in the slide bearing 104 of the intermediate bearing 101 is followed by a section with a so-called straight toothing 125 (internal toothing) which is part of a so-called shaft-hub connection.
  • this shaft-hub connection 128 enables a driver 131 to slide axially in a straight line.
  • This driver 131 is a sleeve-like extension, which is integrally connected here, for example, to a cup-shaped outer ring 132 of the freewheel 137.
  • This freewheel 137 (directional lock) also consists of the inner ring 140, which is arranged radially inside the outer ring 132.
  • Clamping bodies 138 are arranged between the inner ring 140 and the outer ring 132. This clamp body 138 prevent interaction with the inner and outer rings a relative rotation between the outer ring and the inner ring in a second direction.
  • the freewheel 137 enables a circumferential relative movement between the inner ring 140 and outer ring 134 only in one direction.
  • the inner ring 140 is made in one piece with the starter pinion 22 and its toothing 143.
  • the pushing device 16 has a housing 156 which is fastened to the drive end shield 19 by means of a plurality of fastening elements 159 (screws).
  • a winding 162 for retraction is also arranged in the pushing device 16. When pulled in, the winding 162 causes an electromagnetic field which flows through various components. Among other things, this magnetic field affects a linearly movable armature, which is referred to here as lifting means 168, and possibly a yoke core 171, which is lid-like here.
  • the lifting device 168 carries a push rod 174 which is moved to the right when the lifting device 168 is drawn in linearly.
  • the pushing device 16 or the lifting means 168 has the task of using a pulling element 187 to move a lever 190 arranged in the drive bearing plate 19 so as to be rotatable.
  • This lever 190 usually designed as a fork lever, grips with two “tines” or fork arms (not shown here) on its outer circumference a driving ring 197 located between two disks 193 and 194 in order to move it towards the freewheel 137 against the resistance of the spring 200 and thereby engage the starter pinion 22 in the ring gear 25.
  • the electric motor 13 could also be permanently magnetically excited.
  • the pole tube 28 has permanent magnets on its inner circumference instead of pole shoes 31, each surrounded by an excitation coil 300, which ensure the corresponding magnetic opposing field to the armature 37.
  • FIG. 2 shows how the starting device 10 is electrically connected or connected to a starter control unit 250.
  • this starter control unit 250 uses an electrical solenoid 253 (relay) to actuate a switch 256, which is responsible for the power supply to the starter motor 13. If this switch 256 is closed, positive electrical potential is applied to the starter motor 13 by a starter battery or starter accumulator 259. As a result, the armature 37 begins to rotate, and the starter pinion 22 also begins to rotate.
  • the starter control unit also switches 250 the pusher 16.
  • the winding 162 is energized by means of two electrical lines 262 and 265 for drawing in.
  • the lifting means 168 moves, which moves the pulling element 187 and subsequently the lever 190.
  • the starter pinion 22 is thus advanced axially in the direction of the output shaft 116 in the direction of the ring gear 25.
  • a speed sensor 270 transmits a signal to an engine control unit 273. This signal corresponds to a speed characteristic of the ring gear 25 of the internal combustion engine 20. It is irrelevant whether the speed sensor 270 is the speed of the ring gear 25 or the speed of another with the Sprocket 25 connected component transmitted. The speed of a camshaft of the internal combustion engine 20 could also come into question here, for example.
  • the engine control unit 273 decides whether the starter control unit 250 should be activated or not.
  • the engine control unit 273 activates the starter control unit 250, which both starts the starter motor 13 (activating the solenoid 253, closing the switch 256) and activating it of the pushing device 16 by switching the winding 162.
  • the starter control unit 250 which both starts the starter motor 13 (activating the solenoid 253, closing the switch 256) and activating it of the pushing device 16 by switching the winding 162.
  • a method for engaging a starter pinion 22 of a starting device 10 into a ring gear 25 of an internal combustion engine is provided, the starter pinion 22 having a circumferential speed v R due to a rotating starter motor 13 and the ring gear 25 having a circumferential speed v ZK , the Starting pinion 22 axially pre-tracks along a rotation axis 276.
  • the starter pinion 22 contacts the ring gear 25 at a peripheral speed v R that is less than the peripheral speed v ZK of the ring gear 25.
  • the Figure 3 shows a schematic view in the axial direction (axis of rotation of starter pinion 22 and ring gear 25) an end view of the starter pinion 22 and the ring gear 25 at the moment before the ring gear 25 is contacted by the starter pinion 22. It is shown that the ring gear 25 is clockwise here and the starter pinion 22 counterclockwise.
  • the ring gear 25 has a circumferential speed v ZK on its outer circumference, ie here on the pitch circle diameter, and the starter pinion 22 has a circumferential speed V R on its pitch circle diameter.
  • the starter pinion 22 contacts the ring gear 25 at a peripheral speed v R , the peripheral speed v R being less than the peripheral speed v ZK of the ring gear 25.
  • the Figure 4a to 4k shows the sequence of the Einspurvorgangs in a highly schematic manner.
  • the representations in Figure 4a to 4k show in developments the process of the engagement of the teeth of the starter pinion 22 in the tooth gaps of the ring gear 25. That is. the circumference of the gears is shown linear here.
  • FIG. 4a shows Figure 4a the situation of the starter pinion 22 and the ring gear 25 after the starter pinion 22 has been rotated.
  • the starter pinion 22 shows a tooth ZR1 in the detail and subsequently a tooth ZR2.
  • These teeth ZR1 and ZR2 have a bevel 303 in the direction of the end face 300 directed towards the ring gear 25, this bevel 303 has the back of the teeth.
  • Back side here means that this bevel passes from the front side 300 to the back of the tooth, the back of the tooth ZR1 or ZR2 being oriented against the direction of rotation.
  • the ring gear 25 also has an end face 306.
  • the teeth ZK1, ZK2, ZK3 and ZK4, representative of all teeth on the outer circumference of the ring gear 25, also have a bevel 309.
  • these bevels 309 starting from the end face 306 in the direction of the direction of rotation and thus the peripheral speed v ZK .
  • the bevels 303 of the starter pinion 22 and also the bevels 309 of the ring gear 25 are opposite one another or face one another.
  • the different peripheral speeds of the pitch circle of the starter pinion 22 and the ring gear 25 are shown here with different sized arrows.
  • FIG. 4b shows the moment of contacting the pinion 22 on the ring gear 25.
  • This Figure 4b shows the normal case of the first attempt to engage a pinion 22 in the ring gear 25 of an internal combustion engine, namely the so-called tooth-on-tooth position.
  • the end faces 300 and 306 of teeth ZR1 and ZR2 and teeth ZK1 and ZK2 are in the way of one another. A smooth, unimpeded engagement of the pinion 22 in the ring gear 25 is not possible.
  • the teeth ZR1 and ZR2 initially fail to mesh into the corresponding tooth gaps ZL1 and ZL2 of the ring gear 25. Rather, the bevels 303 of the teeth ZR1 and ZR2 abut the bevels 309 of the teeth ZK2 and ZK3.
  • the teeth ZR1 and ZR2 of the starter pinion 22 now slide, driven in the circumferential direction through the ring gear or its teeth ZK3 and ZK4, further into the tooth gaps ZL3 and ZL2 until these teeth are completely inserted into the tooth gaps ZL2 and ZL3 ( Figure 4i and Figure 4j ).
  • the teeth ZR3 and ZR4 then carry out a change of contact ( Figure 4k ) by, ie either the gear rim 25 brakes so strongly that the teeth ZK3 and ZK4 slow down and come to rest against the teeth ZR1 and ZR2 or that the pinion gear 22 accelerates so much that it now drives the gear rim 25 actively to turn the engine 20 back over the ring gear 25 (continued operation of the engine).
  • the latter case can occur if the driver has changed his intentions while the engagement of the pinion gear 22 in the ring gear 25 was in progress.
  • a change can occur, for example, when the driver has approached a traffic light with his vehicle and intended to bring the vehicle to a standstill or has brought it to a very short standstill.
  • the internal combustion engine can just in the concept of Be run out when the traffic light switches from "stop" to "drive”.
  • the starting pinion 22 can be suddenly accelerated, for example, by actuating a signal transmitter which represents a driver's request (accelerator pedal) and the Figure 4k presented situation occur (keyword "mind change", reinterpretation for change of intent or change of mind of the driver).
  • the circumferential velocity v ZK of the ring gear 25 a maximum at the moment of first contacting a value formed from the product of 5m / (s * mm) [five yards per the product of seconds and millimeters], and the module m ZK of the ring gear 25 is larger in mm and slightly larger than the peripheral speed v R of the pinion gear 22 is.
  • a value of 2.11 mm is assumed for the module m ZK of the ring gear 25.
  • This technical size module m is specified, for example, in the German industrial standard DIN 868 and is a basic size for length dimensions of gears.
  • the module m results as the quotient of the division p and the number ⁇ .
  • the pitch p is in turn in a certain section of the toothing of the arches on the reference surface between the flanks of the same name of two adjacent teeth, that is to say, for example, the teeth ZK1 and ZK2.
  • the peripheral speed v ZK of the ring gear 25 is at most 10.55 meters per second greater than the peripheral speed v R of the starter pinion 22. For a module m of 3 mm, this would result thus a value of 15 meters per second and for a module of 1.5 mm a speed of 7.5 meters per second.
  • the starting device 10 has a pinion shaft in the form of the driver 131, which drives the starter pinion 22.
  • a spring force of the spring 200 acts on the starter pinion 22, the spring 200 being compressed when the starter pinion 22 contacts the ring gear 25.
  • a switching criterion e.g. B. a speed of the ring gear 25 or the drive shaft 21 or a camshaft by a control unit 273, executed there is recognized as an engine control unit.
  • the starter pinion 22 is pre-tracked in one direction towards the ring gear 25 and set in rotation in another step, the peripheral speed v R prevailing on the pinion gear 22 being smaller than the peripheral speed v ZK when the ring gear 25 is reached. It is initially irrelevant whether the toe-in of the starter pinion 22 takes place before the start of the rotation or in the reverse order.
  • a variant of the embodiment according to Figure 2 can provide, for example, that the switching criterion, for example the rotational speed, is not recognized by the control unit 273 of the internal combustion engine 20, but rather, for example, by the control unit 250 of the starter, which then initiates the steps already mentioned (rotating, toe-in).
  • the switching criterion for example the rotational speed
  • the switching criterion can be, for example, a signal that corresponds to a request for switching off the internal combustion engine in general.
  • a request can already appear, for example, in that the speed of the Vehicle should be reduced.
  • Such a reduction in speed can result, for example, from the actuation of the brake pedal or the actuation of a corresponding signal sensor, which processes the signals of the brake system.
  • a corresponding other signal could also be the signal which is intended to signal the internal combustion engine 20 that it should now be controlled in idle mode (overrun cutoff).
  • a time is calculated based on the switching criterion and the starting device is also activated in order to achieve the conditions desired according to the invention.
  • the method is applied to an internal combustion engine 20 that is running out, the rotational speed of the drive shaft 21 being reduced.
  • the rotational speed of the starter pinion 22 is reduced to the value zero after engagement in the ring gear 25. As a result, this condition also applies to the ring gear 25.
  • the starter motor 13 and the lifting means 16 are controlled separately from one another.
  • the spring 200 can be designed, for example, as a spiral spring or as a plate spring or another type of spring.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Retarders (AREA)
EP09781230.9A 2008-08-01 2009-07-29 Verfahren zum einspuren eines andrehritzels einer startvorrichtung in einen zahnkranz einer brennkraftmaschine Active EP2321522B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008040945.6A DE102008040945B4 (de) 2008-08-01 2008-08-01 Verfahren zum Einspuren eines Andrehritzels einer Startvorrichtung in einen Zahnkranz einer Brennkraftmaschine
PCT/EP2009/059797 WO2010012764A1 (de) 2008-08-01 2009-07-29 Verfahren zum einspuren eines andrehritzels einer startvorrichtung in einen zahnkranz einer brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP2321522A1 EP2321522A1 (de) 2011-05-18
EP2321522B1 true EP2321522B1 (de) 2020-01-22

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EP09781230.9A Active EP2321522B1 (de) 2008-08-01 2009-07-29 Verfahren zum einspuren eines andrehritzels einer startvorrichtung in einen zahnkranz einer brennkraftmaschine

Country Status (5)

Country Link
US (1) US9169819B2 (hu)
EP (1) EP2321522B1 (hu)
DE (1) DE102008040945B4 (hu)
HU (1) HUE050273T2 (hu)
WO (1) WO2010012764A1 (hu)

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EP2169214B1 (en) * 2008-09-24 2019-04-03 Volvo Car Corporation Flywheel arrangement for an internal combustion engine
JP5287472B2 (ja) * 2009-04-24 2013-09-11 株式会社デンソー エンジン始動装置
DE102009045262B4 (de) * 2009-10-01 2019-03-28 Seg Automotive Germany Gmbh Relais mit pneumatischer Dämpfung
DE102010001773B4 (de) * 2010-02-10 2020-06-18 Seg Automotive Germany Gmbh Verfahren zum Einspuren eines Andrehritzels in einen Zahnkranz einer Brennkraftmaschine
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US9169819B2 (en) 2015-10-27
EP2321522A1 (de) 2011-05-18
DE102008040945B4 (de) 2019-08-14
WO2010012764A1 (de) 2010-02-04
US20120024253A1 (en) 2012-02-02
HUE050273T2 (hu) 2020-11-30
DE102008040945A1 (de) 2010-02-04

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