WO2012016561A1 - Crankshaft pulley - Google Patents
Crankshaft pulley Download PDFInfo
- Publication number
- WO2012016561A1 WO2012016561A1 PCT/DE2011/001474 DE2011001474W WO2012016561A1 WO 2012016561 A1 WO2012016561 A1 WO 2012016561A1 DE 2011001474 W DE2011001474 W DE 2011001474W WO 2012016561 A1 WO2012016561 A1 WO 2012016561A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crankshaft
- crankshaft pulley
- coupling device
- rotatably connected
- planetary gear
- Prior art date
Links
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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
-
- 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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
Definitions
- the invention relates to a crankshaft pulley for transmitting a torque between a crankshaft and a belt drive, with a coupling device.
- European Patent EP 0 782 674 B1 discloses a crankshaft decoupler with a directionally switched clutch.
- European Patent EP 0 980 479 B1 discloses a belt drive system with a generator clutch freewheel clutch.
- the object of the invention is to further optimize a crankshaft pulley according to the preamble of claim 1, in particular with regard to different operating functions and / or the required installation space.
- the object is achieved in a crankshaft pulley for transmitting torque between a crankshaft and a belt drive, with a coupling device, characterized in that the coupling device is designed as a form-locking coupling and combined in the crankshaft pulley with a PSanetengetriebe that three different switching states can be displayed. Due to the form-locking coupling, two coupling partners are then connected to one another in a torque-proof manner when they have approximately the same rotational speeds, that is to say are synchronized.
- a preferred embodiment of the crankshaft pulley is characterized in that the clutch device has a neutral position in which the crankshaft can rotate freely in both directions of rotation relative to a belt track. If an internal combustion engine, which is also referred to as an internal combustion engine is, then a connected to the belt drive air compressor can be operated by a starter generator for stationary air conditioning. In the neutral position, it is also possible to accelerate the engine quickly, without the belt drive must be accelerated with. This fuel can be saved and / or a higher driving dynamics can be achieved.
- crankshaft pulley Another preferred exemplary embodiment of the crankshaft pulley is characterized in that the clutch device has a transmission position in which the belt track rotates faster than the crankshaft in both directions of rotation.
- the ratio is three to one and is represented by the planetary gear.
- the starter generator may drive the crankshaft via the planetary gear to start the engine.
- the planetary gear increases the torque and thus enables a cold start.
- the still relatively slowly rotating crankshaft drives the starter generator translated, so that relatively low power can be generated despite low crankshaft speed.
- crankshaft pulley has a direct position in which the belt track is rotatably connected in both directions of rotation with the crankshaft.
- the gear ratio is one to one.
- the starter generator can be operated as a generator.
- crankshaft pulley is characterized in that a central body of the coupling device is rotatably connected to the belt track. Via the coupling device, the belt track can be coupled either directly to the crankshaft or to the sun gear of the planetary gear.
- crankshaft pulley is characterized in that a central body of the clutch device is rotatably connected to the crankshaft.
- the crankshaft can be coupled either directly to the belt track or with the planet carrier of the planetary gear.
- crankshaft pulley is characterized in that the coupling device is designed as a dog clutch with shift locks.
- the jaw clutch with the shift locks is preferably the same or similar to running in motor vehicle transmissions.
- the shift locks prevent closing of the clutch device at different speeds of the clutch partners.
- crankshaft pulley is characterized in that a ring gear of the planetary gear is rotatably connected to a stationary housing part.
- the stationary housing it is, for example, a motor housing part, in particular a crankcase part, which is fixed relative to the crankshaft pulley.
- the coupling device is rotatably connected to a sun gear of the planetary gear. The sun gear meshes with planet wheels, which in turn mesh with the ring gear of the planetary gear.
- crankshaft pulley is characterized in that the coupling device is rotatably connected to the crankshaft. This can be a direct connection with the gear ratio one to one. About the intermediate planetary gear but other translations, for example, three to one, can be realized.
- the crankshaft pulley is preferably mounted on a crankshaft central bolt, by means of which the crankshaft pulley is attached to the crankshaft.
- a belt-driven starter generator such as start / stop
- stationary air conditioning and generator operation can be realized in a simple manner.
- the inertia of the planetary gear can be used to illustrate the function of a Kurbelwellentilgers.
- a separate absorber mass can be integrated into the crankshaft pulley.
- the additional absorber mass can be attached to the planet carrier or to the crankshaft.
- an optional torque-transmitting damping element can be integrated into the crankshaft pulley in both directions of rotation.
- the invention further relates to a drive train of a motor vehicle, as disclosed, for example, in German Offenlegungsschrift DE 10 2007 021 233 A1.
- the power transmission unit described therein is replaced by the crankshaft pulley according to the invention.
- FIG. 1 is a greatly simplified schematic representation of a crankshaft pulley according to a first embodiment in a neutral position
- FIG. 2 shows the crankshaft pulley from FIG. 1 in a direct position
- FIG 3 shows the crankshaft pulley of Figure 1 in a translation position.
- FIG. 5 is a detailed view of the crankshaft pulley of Figures 1 to
- FIG 6 shows the crankshaft pulley of Figure 5 in another longitudinal sectional plane.
- crankshaft pulley 1 In FIGS. 1 to 6, a crankshaft pulley 1; 51 shown in different views and switch positions.
- the crankshaft pulley 1 comprises a pulley track 2, which is also referred to as a pulley or belt track for a short time, and serves to couple a belt of a belt drive to further units which are arranged in the belt drive.
- the other units are, for example, an electric motor or a generator, in particular a starter generator, or an auxiliary unit, such as an air conditioning compressor of an air conditioner.
- crankshaft pulley 1; 51 is in the drive train of a motor vehicle, as it is disclosed for example in the German patent application DE 10 2007 021 233 A1, attached to a crankshaft 4, which is rotatable about a rotation axis 5.
- the motor vehicle can be operated with the aid of the crankshaft pulley 1 according to the invention in a so-called start / stop mode.
- a planetary gear 10 is integrated with a ring gear 11.
- the sun gear 14 is integrated together with the ring gear 11, the planet wheels 12 and the planet carrier 13 in the crankshaft pulley 1, 51.
- the ring gear 11 of the planetary gear 10 is rotatably connected to a fixed housing part 20.
- the stationary housing part 20 is, for example, a motor housing part, in particular a crankshaft housing part.
- an absorber mass 22 for example with the interposition of a rubber track, is located radially on the outside of the planet carrier
- a torsional vibration damping device 24 is connected between two flange parts 25 and 26 of the belt track 2.
- the torsional vibration damping device 24 serves to dampen belt drive vibrations and is effective in both directions of rotation of the belt track 2.
- the coupling device 30; 60 is a form-locking coupling with jaw members 34, 35; 64, 65 executed, the form-fitting for torque transmission with coupling bodies 36, 37; 66, 67 are connectable.
- the coupling device 30; 60 is connected via a shift sleeve 38; 68 by means of an actuator 39; 69 switched as indicated by a double arrow 40; 70 is indicated.
- the central body 32 of the coupling device 30 is connected in a rotationally fixed manner to the belt track 2 with the interposition of the torsional vibration damping device 24.
- the jaw members 34, 35 are reciprocated via the shift sleeve 38 with the aid of the actuator 39 in the axial direction, that is to say parallel to the rotational axis 5, in order to represent different shift positions of the clutch device 30.
- the coupling device 30 is in its neutral position, in which no torque is transmitted.
- an arrow 41 indicates that the actuator 39 has been switched, for example via an electric motor and a ramp device, in such a way that the claw body 34 is positively connected to the coupling body 36, which is connected to the crankshaft 4 in a torque-proof manner.
- the switching state shown in Figure 2 is also referred to as a direct state, because the belt track 2 via the central body 32 and the form-fitting with the coupling body 36 connected to the jaw body 34 directly, that is connected at a transmission ratio of one to one, with the crankshaft 4.
- the central body 62 of the clutch device 60 is connected in a rotationally fixed manner to the crankshaft 4.
- the coupling body 67 is rotatably connected to the sun gear 4.
- the coupling body 66 is rotatably connected to the planet carrier 13. In the illustrated state, the coupling device 60 is in its neutral position.
- the double arrow 70 is indicated that the shift sleeve 68 can be switched over the actuator 69 either to the left or to the right.
- the crankshaft 4 When switching to the left, the crankshaft 4 is rotatably connected via the sun gear 14 with the belt track 2. In this case, the planet carrier 13 rotates via the planetary gears 12, without a torque being transmitted via the planet carrier 13.
- the coupling device 30 comprises shift locks 76, 77, which prevent positive engagement of the clutch partners when the clutch partners rotate at different speeds.
- a starter generator can be used, which has a higher dynamics than the internal combustion engine. Such a starter generator may hold the belt drive in synchronism with the crankshaft 4 to enable shifting of the dog clutch at a low differential speed.
- the actuator 39 comprises radially outwardly a guide nose 79, which engages in a spiral groove, which is formed radially inwardly on an adjusting wheel 80.
- the adjusting wheel 80 is, for example via interlocking gears, coupled to Verstell districten with a drive gear 81 of an electric motor 84.
- the shift sleeve 68 can be adjusted in a simple manner from the neutral position shown in the direct position or the transfer position.
- the starter generator can start the engine via the planetary gear with a translation of three to one. In this case, the torque provided by the starter generator is increased via the planetary gear 10.
- the still slowly rotating crankshaft drives the starter generator translated, so that despite low crankshaft speed much power can be generated. If the crankshaft 4 is accelerated beyond a certain limit speed, the starter generator is energized, thereby relieving the coupling device 30. As a result, first low-force position can be switched to the neutral position.
- the belt track 2 is brought by the starter generator to synchronous speed with the crankshaft 4 and inserted via the clutch device of the direct gear. Then the starter generator can again be operated as a generator with a gear ratio of one to one. If the speed of the crankshaft 4 drops below a certain level, it can be switched back into the transmission position if necessary, for example at a low battery level.
- crankshaft pulley 1 is rotatably mounted on a central screw 90, with which the crankshaft pulley 1 is attached to the crankshaft 4, not shown in Figures 5 and 6.
- a belt track 92 is rotatable by means of rolling bearings 94, 95 on the Central screw 90 stored.
- the belt track 92 is fixedly connected to a radial flange 96 extending radially inwardly from the belt track 2.
- the planetary gear 10 is partially disposed within a transmission housing 98, which is preferably designed as a sheet metal part.
- the transmission housing 98 is fixed radially on the outside of the stationary housing part 20.
- a radial seal 75 is disposed between the fixed gear housing 98 and the relatively rotatable belt track 92.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011104278T DE112011104278A5 (en) | 2010-08-02 | 2011-07-18 | Crankshaft pulley |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010033065 | 2010-08-02 | ||
DE102010033065.5 | 2010-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012016561A1 true WO2012016561A1 (en) | 2012-02-09 |
Family
ID=44718969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2011/001474 WO2012016561A1 (en) | 2010-08-02 | 2011-07-18 | Crankshaft pulley |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102011107908A1 (en) |
WO (1) | WO2012016561A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012075981A1 (en) * | 2010-12-02 | 2012-06-14 | Schaeffler Technologies AG & Co. KG | Crankshaft pulley |
WO2013120602A1 (en) | 2012-02-15 | 2013-08-22 | Iwis Motorsysteme Gmbh & Co. Kg | Transmission and method for operating a transmission |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3053394B1 (en) * | 2016-06-30 | 2019-08-09 | Hutchinson | DECOUPLING PULLEY WITH DEPARTURE CLUTCH |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2153856A (en) * | 1936-10-26 | 1939-04-11 | Edward E Stout | Gear set |
EP0132023A2 (en) * | 1983-05-19 | 1985-01-23 | Eaton Corporation | Change gear planetary transmission |
EP0317214A2 (en) * | 1987-11-18 | 1989-05-24 | Borg-Warner Automotive, Inc. | Centrifugally controlled two-speed accessory drive |
WO1996012122A1 (en) * | 1994-10-14 | 1996-04-25 | Tesma International Inc. | Crankshaft decoupler |
WO1998050709A1 (en) * | 1997-05-07 | 1998-11-12 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
US5842944A (en) * | 1996-02-14 | 1998-12-01 | Mitsubishi Denki Kabushiki Kaisha | Auxiliary machine driving apparatus |
DE19822426A1 (en) * | 1998-05-19 | 1999-11-25 | Daimler Chrysler Ag | Planetary variable speed auxiliary drive for use with an internal combustion engine |
WO2007116220A1 (en) * | 2006-04-08 | 2007-10-18 | Integral Powertrain Ltd | Transmission systems |
DE102007021233A1 (en) | 2006-05-17 | 2007-11-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Drive train for use in e.g. motor vehicle, has electrical machine operable as generator in mode of operation and as motor in another mode of operation, and transmission unit with override clutches operating in opposite directions |
US20100144487A1 (en) * | 2008-12-08 | 2010-06-10 | Hyundai Motor Company | Motor-generator system driven by v-belt |
-
2011
- 2011-07-18 WO PCT/DE2011/001474 patent/WO2012016561A1/en active Application Filing
- 2011-07-18 DE DE201110107908 patent/DE102011107908A1/en not_active Withdrawn
- 2011-07-18 DE DE112011104278T patent/DE112011104278A5/en not_active Withdrawn
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2153856A (en) * | 1936-10-26 | 1939-04-11 | Edward E Stout | Gear set |
EP0132023A2 (en) * | 1983-05-19 | 1985-01-23 | Eaton Corporation | Change gear planetary transmission |
EP0317214A2 (en) * | 1987-11-18 | 1989-05-24 | Borg-Warner Automotive, Inc. | Centrifugally controlled two-speed accessory drive |
WO1996012122A1 (en) * | 1994-10-14 | 1996-04-25 | Tesma International Inc. | Crankshaft decoupler |
EP0782674B1 (en) | 1994-10-14 | 1999-04-28 | Tesma International Inc | Crankshaft decoupler |
US5842944A (en) * | 1996-02-14 | 1998-12-01 | Mitsubishi Denki Kabushiki Kaisha | Auxiliary machine driving apparatus |
WO1998050709A1 (en) * | 1997-05-07 | 1998-11-12 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
EP0980479B1 (en) | 1997-05-07 | 2003-08-27 | Litens Automotive Partnership | Serpentine drive system with improved over-running alternator decoupler |
DE19822426A1 (en) * | 1998-05-19 | 1999-11-25 | Daimler Chrysler Ag | Planetary variable speed auxiliary drive for use with an internal combustion engine |
WO2007116220A1 (en) * | 2006-04-08 | 2007-10-18 | Integral Powertrain Ltd | Transmission systems |
DE102007021233A1 (en) | 2006-05-17 | 2007-11-22 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Drive train for use in e.g. motor vehicle, has electrical machine operable as generator in mode of operation and as motor in another mode of operation, and transmission unit with override clutches operating in opposite directions |
US20100144487A1 (en) * | 2008-12-08 | 2010-06-10 | Hyundai Motor Company | Motor-generator system driven by v-belt |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012075981A1 (en) * | 2010-12-02 | 2012-06-14 | Schaeffler Technologies AG & Co. KG | Crankshaft pulley |
WO2013120602A1 (en) | 2012-02-15 | 2013-08-22 | Iwis Motorsysteme Gmbh & Co. Kg | Transmission and method for operating a transmission |
DE102012202308A1 (en) * | 2012-02-15 | 2013-08-22 | Iwis Motorsysteme Gmbh & Co. Kg | Transmission and method for operating a transmission |
Also Published As
Publication number | Publication date |
---|---|
DE112011104278A5 (en) | 2013-09-26 |
DE102011107908A1 (en) | 2012-05-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102011108548B4 (en) | Self-synchronizing stop-start starter system | |
EP1916421B1 (en) | Pump drive assembly | |
EP3668737B1 (en) | Hybrid drive transmission unit and method for operating a vehicle with a hybrid drive | |
DE102015202334B4 (en) | Dual mass flywheel with integrated freewheel | |
DE102010032007B4 (en) | Hybrid drive device for motor vehicles | |
WO2012083919A1 (en) | Method for controlling a switchable planetary gear set in a belt pulley plane of a drive train | |
EP1925486B1 (en) | Hybrid propulsion system for a vehicle | |
DE112012001385T5 (en) | Driving force transmitting device | |
EP1555456A2 (en) | Control of a planetary gear with a starter generator as an accessory by means of speed control of the starter generator | |
DE102018129934B3 (en) | Electromechanical drive arrangement for a motor vehicle | |
WO2012016561A1 (en) | Crankshaft pulley | |
WO2020192829A1 (en) | Electric axle, drivetrain unit and method for operating a parking lock device | |
WO2013186168A1 (en) | Translational and differential transmission and motor and transmission unit | |
WO2020108678A1 (en) | Electromechanical drive assembly for a motor vehicle | |
DE102011013478A1 (en) | Crankshaft pulley | |
DE102016200407B4 (en) | Drive device with an auxiliary unit | |
WO2015149762A1 (en) | Drive arrangement for a vehicle, and vehicle having the drive arrangement | |
WO2001013006A2 (en) | Transmission | |
DE102014216082B4 (en) | Switchable freewheel | |
WO2012083913A1 (en) | Belt drive with switchable planetary gear set | |
WO2012028134A2 (en) | Crankshaft pulley | |
DE102021114641A1 (en) | Drive unit and drive arrangement | |
DE102019121215A1 (en) | Planetary gear with an integrated freewheel | |
WO2014177147A1 (en) | Device for drivingly linking an auxiliary unit drive of a vehicle | |
DE10108477A1 (en) | Actuator for actuating clutches |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 11761483 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 112011104278 Country of ref document: DE Ref document number: 1120111042787 Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 11761483 Country of ref document: EP Kind code of ref document: A1 |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112011104278 Country of ref document: DE Effective date: 20130926 |