WO2019066757A1 - DOUBLE CLUTCH COUPLING SYSTEM - Google Patents

DOUBLE CLUTCH COUPLING SYSTEM Download PDF

Info

Publication number
WO2019066757A1
WO2019066757A1 PCT/TR2018/050475 TR2018050475W WO2019066757A1 WO 2019066757 A1 WO2019066757 A1 WO 2019066757A1 TR 2018050475 W TR2018050475 W TR 2018050475W WO 2019066757 A1 WO2019066757 A1 WO 2019066757A1
Authority
WO
WIPO (PCT)
Prior art keywords
transfer element
clutch
spring
activation member
dual
Prior art date
Application number
PCT/TR2018/050475
Other languages
English (en)
French (fr)
Inventor
Sezgin OZCAN
Original Assignee
Ford Otomotiv Sanayi A.S.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ford Otomotiv Sanayi A.S. filed Critical Ford Otomotiv Sanayi A.S.
Priority to DE112018004246.4T priority Critical patent/DE112018004246B4/de
Publication of WO2019066757A1 publication Critical patent/WO2019066757A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00Systems comprising a plurality of actuated clutches
    • F16D21/02Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D28/00Electrically-actuated clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00Systems comprising a plurality of actuated clutches
    • F16D21/02Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F16D2021/0607Double clutch with torque input plate in-between the two clutches, i.e. having a central input plate
    • F16D2021/0615Double clutch with torque input plate in-between the two clutches, i.e. having a central input plate the central input plate is supported by bearings in-between the two clutches
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D21/00Systems comprising a plurality of actuated clutches
    • F16D21/02Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways
    • F16D21/06Systems comprising a plurality of actuated clutches for interconnecting three or more shafts or other transmission members in different ways at least two driving shafts or two driven shafts being concentric
    • F16D2021/0646Electrically actuated clutch with two clutch plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2300/00Special features for couplings or clutches
    • F16D2300/24Concentric actuation rods, e.g. actuation rods extending concentrically through a shaft

Definitions

  • the present invention relates a dual-clutch coupling system which is used in dual clutch systems in vehicles and which can perform two functions together by using just one activation drive.
  • the single-clutch method which is one of the dry clutching methods
  • engaging or releasing of the conventional clutch disc and pressure plate is realized by a control unit using an electronically controlled mechanism instead of performing the same operation through a driver using a pedal.
  • the single clutch method used here causes to feel the motor-clutch movement during gear shifts and the gear change takes a longer time.
  • the dual clutch method is preferred and used more frequently in current applications.
  • dual clutch automatic transmission vehicles especially two methods are used to engage each clutch. In one of the said methods, a pressurized hydraulic fluid is directed to the piston that should move the respective lever arm to engage the preferred clutch disc via electronically controlled valves.
  • the hydraulic fluid used in this application is continuously to use by means of the drive originated from the vehicle motor as well as the said fluid has to be hold at a certain pressure level continuously.
  • the other one of the said methods is the electromechanical control system.
  • the respective lever arm is pushed by using the elektromechanical control system and the preferred clutch disc is activated.
  • a servo-motor assembly is provided for each clutch.
  • the servo-motor connected to the corresponding lever arm pushes the clutch pressure plate with the incoming current, thus provides engaging of the preferred clutch.
  • the object of the present invention is to realize a dual-clutch coupling system that is more cost-effective in practice than the clutches used with two servomotors, especially since one servomotor is used.
  • a further object of the present invention is to realize a dual clutch coupling system which can operate by a simpler software instead of a complicated software controlling the both servomotors.
  • Another object of the present invention is to realize a dual-clutch coupling system that does not use hydraulic fluid that increases fuel consumption since it does not require a hydraulic drive system and further contributes to fuel economy because it only requires power for the gear shift.
  • activation member which is realized in order to achieve the object of the present invention and which is a characterizing element in the dual clutch system defined in the first claim and in the other dependent claims.
  • the activation member can be rotated at a preferred rate and speed around its axis by means of an activator.
  • the contact of the activation member with the activator is provided by means of a drive gear.
  • first transfer element cam activator and second drive except the drive gear. Said first transfer element cam activator and second drive are respectively in connection with the first transfer element and the second transfer element.
  • the first transfer element moves in the axial direction to apply pressure force to the first spring
  • the second transfer element moves in the axial direction to apply pressure force to the second spring.
  • Figure 1 is a sectional side view of the dual-clutch coupling system.
  • Figure 2 is a schematic view of the dual-clutch coupling system wherein one of the clutches is activated.
  • Figure 3 is a schematic view of the dual-clutch coupling system wherein the other one of the clutches is activated.
  • Figure 4 is a perspective view of the activation member, the first transfer element and the second transfer element, wherein the second transfer element is in a forward position.
  • Figure 5 is a sectional perspective view of the activation member, the first transfer element and the second transfer element, wherein the second transfer element is in a forward position.
  • Figure 6 is a perspective view of the activation member, the first transfer element and the second transfer element, wherein the first transfer element is in a forward position.
  • Figure 7 is a sectional perspective view of the activation member, the first transfer element and the second transfer element, wherein the first transfer element is in a forward position.
  • Figure 8 is an exploded perspective view of the activation member, the first transfer element and the second transfer element.
  • Figure 9 is a perspective view of the activation member.
  • Figure 10 is a perspective view of the activation member from another viewpoint.
  • Figure 11 is a perspective view of the second transfer element.
  • Figure 12 is a perspective view of the first transfer element.
  • the dual clutch coupling system (1) which is used in dual clutch systems in vehicles and which can perform two functions together by using just one activation drive, comprises in its most basic form; at least one first clutch (2) to perform torque transfer to the gears preferred in the gearbox, at least one second clutch (3) for transmitting torque to the other gears in the gearbox to which the first clutch (2) does not transmit torque. at least a first clutch pressure plate (4) for fixing the first clutch (2) to the engine flywheel and for transmitting the engine torque to the traction wheels from the first clutch (2),
  • At least one activation member (8) which can rotate around its own axis in clockwise or in counter clockwise direction with preferred speeds and which according to its rotating position forces the first transfer element (11) or the second transfer element (12) to move along the central axis of the first transfer element (11) or the second transfer element (12) wherein the first transfer element (11) transmits drive to the first spring (6) and the second transfer element (12) to the second spring (7).
  • first clutch (2) transmits torque only to particular gears in the gearbox (eg. gears 1-3-5-7).
  • the first clutch (2) in this embodiment of the invention is preferably a clutch disc.
  • second clutch (3) engages the gears that are not engaged by the first clutch (2) (eg 2-4-6-R gears) and transmits in this way the torque.
  • the second clutch (3) in this embodiment of the invention is preferably also a clutch disc.
  • first clutch pressure plate (4) and a second clutch pressure plate (5).
  • Said first clutch pressure plate (4) is in contact with the first clutch (2) and fixes the first clutch (2) to the engine flywheel such that the engine torque is transmitted to the traction wheels by means of the first clutch (2).
  • second clutch pressure plate (5) there is also a second clutch pressure plate (5).
  • Said second clutch pressure plate (5) is connected with the second clutch (3) in a manner similar to the first clutch pressure plate (4).
  • the second clutch pressure plate (5) is connected to the second clutch (3) and fixes the second clutch (3) to the engine flywheel so that the engine torque is transmitted to the traction wheels via the second clutch (3).
  • first spring (6) in addition to the first clutch pressure plate (4) and the second clutch pressure plate (5), there is also a first spring (6) and a second spring (7).
  • the first spring (6) mentioned in this embodiment of the present invention is connected to the first clutch pressure plate (4) and allows the first clutch pressure plate (4) to be gripped.
  • the second spring (7) is connected to the second clutch pressure plate (5) and allows the gripping of the second clutch pressure plate (5).
  • an activation member (8) which allows the first spring (6) and the second spring (7) to be moved in preferred situations.
  • the body (8.1) of said activation member (8) preferably consists of a cylindrical form with a hollow central part.
  • the activation member (8) can only perform a rotational motion and does not move axially in any way.
  • Through the central part of the activation member (8) the inner shaft (13) and the outer shaft (14) is passed.
  • drive gears (8.2) are located around the activation member (8). These drive gears (8.2) located around the activation member (8) are in contact with the activator (9).
  • the geometry, form and number of the drive gear (8.2) is similar to that of the geometry, form and number of the activator (9), with the drive gear (8.2) and activator (9) being similar in form.
  • the drive gear (8.2) and the activator (9) can operate synchronously and a moment formed in the activator (9) can be transmitted to the activation member (8) via drive gear (8.2).
  • the activation member (8) in addition to the drive gear (8.2) there is also a first transfer element cam activators (8.3) and a second transfer element cam activator (8.4).
  • Said first transfer element cam activator (8.3) and second transfer element cam activator (8.4) are located on the side of the body (8.1) facing the first spring (6) and the second spring (7).
  • the first transfer element cam activators (8.3) is in contact with the first spring (6) via first transfer element (11) and the second transfer element cam activator (8.4) is in contact with the second spring (7) via second transfer element (12).
  • the first transfer element cam activator (8.3) consists of one or more extensions as well as of cavities between the extensions, which are located in a circular strip on the surface of the body (8.1) facing the first spring (6) and the second spring (7) and extending from the inside of said circular strip parallel to the central axis of the body in a direction to the first spring (6).
  • the length of said extensions is able to be changed in a preferred ratio according to the size of the axial travel.
  • the activation member (8) in addition to the first transfer element cam activator (8.3) there is also a second transfer element cam activator (8.4).
  • Said second transfer element cam activator (8.4) is located in the circular strip on the surface of the body (8.1) facing the first spring (6) and the second spring (7) in a manner similar to that of the first transfer element cam activator (8.3).
  • In said strip there is one or more extensions extending from the strip towards the second spring (7) so as to be parallel to the central axis of the body (8.1). The length of said extensions can be changed in a preferred ratio according to the size of the axial travel.
  • the remaining sections between the extensions of the first transfer element cam activator (8.3) and the second transfer element cam activators (8.4) are empty.
  • first transfer element (11) there is a first transfer element (11) and a second transfer element (12) in order to transfer the movement formed by means of the activation member (8).
  • Said first transfer element (11) and also the second transfer element (12) can only move axially and cannot move rotationally in any way.
  • One side of the first transfer element (11) mentioned in this embodiment of the invention is connected with the activation member (8) and the other side thereof is connected with the first spring (6).
  • the one side of the second transfer element (12) is connected with the activation member (8) and the other side thereof is connected with the second spring (7).
  • first transfer element (11) there is preferably a first drive cam profile (11.1), an inner channel (11.2) and an outer channel (11.3).
  • Said first drive cam profiles (11.1) are connected directly to the first transfer element cam activator (8.3).
  • the first drive cam profiles (11.1) have extensions and cavities of similar construction as the first transfer element cam activator (8.3).
  • the inner channel (11.2) and the outer channel (11.3) found in the first transfer element (11) are formed in the first transfer element (11) for such a reason that the first transfer element
  • the second transfer element (12) in this embodiment of the invention has a second drive cam profiles (12.1) and channel counterpart (12.2).
  • the channel counterpart (12.2) found in the second transfer element (12) is formed to allow the second transfer element (12) to move only in axial direction and in the inner channel (11.2) found in the first transfer element (11).
  • the dual-clutch coupling system (1) in one embodiment of the invention rotation of the activation member (8) around its axis in a preferred ratio and speed is provided by means of the activator (9).
  • the activator (9) in this embodiment of the present invention is preferably a servo-motor.
  • Said sensor is a sensing element which detects the actual position of the activation member (8) and continuously measures the position of the activation member (8).
  • the operation of the dual-clutch coupling system (1) is carried out as follows; said dual-clutch coupling system (1) is designed to realize two functions using a drive from only one activator (9) for dual clutch systems used in automotive industry.
  • Activation member (8) performs a rotation movement by being connected to the activator (9) via drive gear (8.2) in order to be able to perform these two functions together. Since the activation member (8) is fixed to body of the gearbox so that it cannot perform an axial movement, when the activator (9) is actuated the activation member (8) performs only a rotational movement.
  • first transfer element cam activator (8.3) located on the activation member (8) and the second transfer element cam activator (8.4) are following a circular route.
  • the first transfer element (11) and the second transfer element (12) are positioned and these have a first drive cam profiles (11.1) and a second drive cam profiles (12.1) which correspondence the first transfer element cam activator (8.3) and the second transfer element cam activator (8.4) of the activation member (8).
  • This first transfer element (11) and the second transfer element (12) unlike the activation member (8) are positioned by means of the antirotation element (15) such that they are able to perform an axial movement but cannot perform a rotational movement.
  • the extensions in the first transfer element cam activator (8.3) and the second transfer element cam activator (8.4) overlap with the extensions in the first drive cam profiles (11.1) and the second drive cam profiles (12.1) and they push the first transfer element (11) or the second transfer element (12) and thus allow the first spring (6) or the second spring (7) to be compressed which are in contact with the first transfer element (11) or the second transfer element (12).
  • the activation member (8) is positioned such as to push the first transfer element (11) by rotation, the first transfer element (11) that was pushed allows the first spring (6) to be tensed with which it is in contact.
  • the tensed first spring (6) urges the first clutch (2) to rotate at the same speed as the engine by compressing it between the intermediate disk (16) directly linked to engine and the first clutch pressure plate (4).
  • the first clutch (2) that starts rotating at the same speed as the engine, rotates the inner shaft (13) to ensure that also the gears (e.g. 1, 3, 5, 7) to which it is connected rotate at the same speed as the engine.
  • the appropriate one of these gears is selected by the control unit, thus the preferred torque convertion is made.
  • a similar operation is performed when the activation member (8) is positioned such as to push the second transfer element (12) by rotation, thus the second transfer element that is pushed allows the second spring (7) to be tensed.
  • the tensed second spring (7) urges the second clutch (3) to rotate at the same speed as the engine by compressing it between the intermediate disk (16) directly linked to engine and the second clutch pressure plate (5).
  • the second clutch (3) that starts rotating at the same speed as the engine, rotates the outer shaft (14) to ensure that also the gears (e.g. 2,4,6, R), to which it is connected, rotate at the same speed as the engine.
  • the torque is transmitted to the gearbox via the second clutch (3) by means of the outer shaft (14) and the appropriate one of the gears on the outer shaft (14) is selected by the control unit, thus the preferred torque convertion is realized.
  • a feedback signal is sent to the control unit by means of the sensor (10).
  • the shift speed varies depending on the turn of the activator (9), gear ratio between the activator (9) and the activation member (8) and the number of designs of the extensions in the activation member (8).
  • the next gear engagement is available even before the gear shift if the gear is to be increased or decreased, and the gear shift takes place during the transition period from one clutch (eg the first clutch (2)) to another clutch (eg the second clutch (3)). This period can be reduced or increased by a proportion depending on the number of extensions in the activation member (8) as mentioned above.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Operated Clutches (AREA)
PCT/TR2018/050475 2017-09-27 2018-09-10 DOUBLE CLUTCH COUPLING SYSTEM WO2019066757A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112018004246.4T DE112018004246B4 (de) 2017-09-27 2018-09-10 Doppelkupplungssystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/14404 2017-09-27
TR2017/14404A TR201714404A1 (tr) 2017-09-27 2017-09-27 Çi̇ft kavramali debri̇yaj si̇stemi̇

Publications (1)

Publication Number Publication Date
WO2019066757A1 true WO2019066757A1 (en) 2019-04-04

Family

ID=65279614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2018/050475 WO2019066757A1 (en) 2017-09-27 2018-09-10 DOUBLE CLUTCH COUPLING SYSTEM

Country Status (3)

Country Link
DE (1) DE112018004246B4 (tr)
TR (1) TR201714404A1 (tr)
WO (1) WO2019066757A1 (tr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819777C (de) * 1950-01-19 1951-11-05 Kloeckner Humboldt Deutz Ag Fahrzeug mit Antrieb durch eine Brennkraftmaschine
DE1455765A1 (de) * 1962-04-13 1969-12-18 Renault Doppeltwirkende Zweischeibenkupplung,insbesondere fuer landwirtschaftliche Fahrzeuge
US6012561A (en) 1998-09-15 2000-01-11 Chrysler Corporation Dual clutch design for and electro-mechanical automatic transmission having a dual input shaft
US20070240530A1 (en) 2006-04-13 2007-10-18 Aisin Ai Co., Ltd. Shifting device for dual clutch transmission
US20090301835A1 (en) * 2006-02-22 2009-12-10 Stefan Tumback Double Clutch for a Double-Clutch Transmission
US20130306424A1 (en) * 2011-02-14 2013-11-21 Aichi Machine Industry Co., Ltd. Clutch switching device and twin-clutch type transmission comprising clutch switching device
WO2017041405A1 (zh) 2015-09-10 2017-03-16 江苏汉凌合能汽车动力系统有限公司 内置双离合器的变速机构

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238118A1 (de) 2001-10-09 2003-04-17 Zf Sachs Ag Betätigungseinrichtung für eine Reibungskupplungseinrichtung, ggf. Doppel- oder Mehrfach-Reibungskupplungseinrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE819777C (de) * 1950-01-19 1951-11-05 Kloeckner Humboldt Deutz Ag Fahrzeug mit Antrieb durch eine Brennkraftmaschine
DE1455765A1 (de) * 1962-04-13 1969-12-18 Renault Doppeltwirkende Zweischeibenkupplung,insbesondere fuer landwirtschaftliche Fahrzeuge
US6012561A (en) 1998-09-15 2000-01-11 Chrysler Corporation Dual clutch design for and electro-mechanical automatic transmission having a dual input shaft
US20090301835A1 (en) * 2006-02-22 2009-12-10 Stefan Tumback Double Clutch for a Double-Clutch Transmission
US20070240530A1 (en) 2006-04-13 2007-10-18 Aisin Ai Co., Ltd. Shifting device for dual clutch transmission
US20130306424A1 (en) * 2011-02-14 2013-11-21 Aichi Machine Industry Co., Ltd. Clutch switching device and twin-clutch type transmission comprising clutch switching device
WO2017041405A1 (zh) 2015-09-10 2017-03-16 江苏汉凌合能汽车动力系统有限公司 内置双离合器的变速机构

Also Published As

Publication number Publication date
TR201714404A1 (tr) 2019-04-22
DE112018004246B4 (de) 2021-09-23
DE112018004246T5 (de) 2020-05-07

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