WO2004081412A1 - Forward-reverse control device - Google Patents
Forward-reverse control device Download PDFInfo
- Publication number
- WO2004081412A1 WO2004081412A1 PCT/NL2004/000180 NL2004000180W WO2004081412A1 WO 2004081412 A1 WO2004081412 A1 WO 2004081412A1 NL 2004000180 W NL2004000180 W NL 2004000180W WO 2004081412 A1 WO2004081412 A1 WO 2004081412A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel
- counter
- gear
- gear set
- gear wheel
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
-
- 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
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/14—Gearings for reversal only
-
- 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
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
- F16H2063/3063—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force using screw devices
Definitions
- the invention is related to a forward-reverse control device, comprising a housing, a rotatable input member, a rotatable output member, a gear set for reversing the input rotation, as well as selector means for selectively connecting the input member and the output member directly or through the gear set.
- Such a forward-reverse control device is known. It can for instance be applied in an automotive vehicle driveline including a continuously variable transmission.
- the object of the invention is to provide an improved independent forward-reverse control mechanism which can be applied in connection with drive-by- wire applications, in particular in connection with a drive-by-wire continuously variable transmission.
- the CVT by wire transmission may incorporate, apart from the forward reverse control by wire, also a disc variator by wire, clutch by wire with or without integrated starter generator, a differential with or without traction control and also a parking by wire control.
- Said object is achieved in that the selector means are driveable by means of an electric actuator.
- Said actuator comprises an electric/mechanical converter for converting rotational motion into linear motion, e.g. a ball/screw mechanism connected to an electric motor.
- the ball screw mechanism may be a friction screw, a ball screw or al roller screw mechanism.
- each satellite gear of the planetary gear set is rotatably connected with respect to the housing, said housing furthermore supporting the screw mechanism and the electric motor.
- the selector means may comprise a toothed selector wheel which is displaceable in axial direction, a first counter wheel which is connected to the input member, a second counter wheel which is connected to the output member, as well as a third counter wheel which is connected to the ring gear of the planetary gear set and which is positioned between the first and the second counter wheel when seen in axial direction, said selector wheel being displaceable between a first position engaging both the third and the first counter wheel, and a second position engaging the third and the second counter wheel.
- the screw of the screw mechanism may be rotatably supported with respect to two axially spaced support rings, said support rings each being suspended with respect to the housing by means of suspension rods extending between the ring gear and the sun gear of the satellite gear set, and the nut of the screw mechanism is connected to the selector wheel.
- Synchronizer mechanisms may be provided between the third and the first counter wheel as well as between the third and the second counter wheel.
- the output member can be connected to the sun wheel, and the third counter wheel can be connected to the ring gear of the satellite gear set.
- Figure 1 and 2 show a forward-reverse control device according to the invention in perspective and partly in radial cross section.
- Figure 3 shows a side view, partially in radial cross section.
- FIG. 4 up to 6 show several steps of the control mechanism.
- the forward-control device as shown in the figures 1, 2 and 3 comprises a housing 1 with a rotatable output shaft 2 onto which a pinion gear 3 has been mounted. Furthermore, the input shaft 4 has been provided with internal toothing 5 for engagement with a splined shaft.
- a first counter gear wheel 6 is mounted on the output shaft 2
- a second counter gear wheel 7 is connected to the input shaft 4
- a third, counter gear wheel 8 is connected to the ring gear 9 of the planetary gear set which has indicated in full by reference numeral 10.
- Said ring gear is connected to the third counter gear wheel 8 by means of the housing part 11.
- the sun gear 12 of the planetary gear set 10 is connected to the input shaft 4.
- the selector gear wheel 15 does not allow mutual rotations, but does allow the selector gear wheel 15 to be axially shifted with respect to the first counter gear wheel 6.
- This axially shifting movement is obtained by the screw mechanism 16, which comprises a screw shaft 17 rotatably supported in the two rings 18, 19. Said two rings are fixedly connected to the housing 1 by means of rods 20 which are regularly spaced in circumferential direction.
- the screw mechanism 16 furthermore comprises a non rotatable nut 21, which is connected to the selector gear wheel 15.
- the screw 17 is driveable through the toothed belt 29 which engages the toothed wheel 22 connected to the screw 17, as well as the toothed wheel 23 connected to the electric motor 24 as supported by the housing 1.
- the forward-reverse control device according to the invention is driven as follows. First of all, the neutral position of the forward-reverse control device according to the invention is shown in the figures 3 and 4. By means of the screw mechanism 16, the selector gear wheel 15 is only in engagement with the first counter gear wheel 6. Thus, there is no mechanical drive connection between the input shaft 4 and the output shaft 2 as shown in figures 4 and 5.
- the output shaft 2 is rotatably supported with respect to the third counter gear wheel 8 by means of the ball bearing 26. Also, the output shaft 2 is rotatably supported with respect to the input shaft 4 by means of the double ball bearing 27. The input shaft 4 is moreover supported with respect to the housing 1 by means of a bearing 28.
- the output shaft can indirectly or directly drive the crown wheel of a differential.
- the drive means may comprise a gear-chain- or toothed belt transmission or a combination thereof.
- the input shaft and the output shaft can be part of a primary or secondary shaft of a CVT transmission.
- the forward-reverse control device can be an add-on module mounted on a clutch, or a clutch by wire or a clutch by wire with an integrated starter generator.
- the forward-reverse control by wire forms a self contained by wire system comprising also a variator disc by wire control, clutch by wire control with or without integrated starter generator, a differential with or without traction control and parking wire control (optional) for a self contained CVT.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Structure Of Transmissions (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04720293A EP1604129A1 (en) | 2003-03-14 | 2004-03-12 | Forward-reverse control device |
US10/549,254 US20060191366A1 (en) | 2003-03-14 | 2004-12-03 | Forward-reverse control device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1022934A NL1022934C2 (en) | 2003-03-14 | 2003-03-14 | Forward-reverse control device. |
NL1022934 | 2003-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004081412A1 true WO2004081412A1 (en) | 2004-09-23 |
Family
ID=32986051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2004/000180 WO2004081412A1 (en) | 2003-03-14 | 2004-03-12 | Forward-reverse control device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1604129A1 (en) |
CN (1) | CN1756915A (en) |
NL (1) | NL1022934C2 (en) |
WO (1) | WO2004081412A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9638302B2 (en) | 2012-07-13 | 2017-05-02 | Schaeffler Technologies Gmbh & Co. Kg | Electric axle with a two gear transmission |
CN107514459A (en) * | 2017-08-08 | 2017-12-26 | 广州汽车集团股份有限公司 | Linear pattern position detecting mechanism and line traffic control shift actuator |
DE102005039559B4 (en) * | 2005-08-22 | 2020-03-05 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electromechanical transmission control |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRMU9100113U2 (en) * | 2011-01-14 | 2013-05-28 | Laury Grandi | reversing cube |
CN103671850A (en) * | 2013-12-18 | 2014-03-26 | 大连精功机械设备有限公司 | Buffer of main turning shaft mechanism of circulation type forward and backward turning and variable speed vacuum compressor |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2296520A (en) * | 1940-12-06 | 1942-09-22 | Packard Motor Car Co | Motor vehicle |
GB591153A (en) * | 1945-03-05 | 1947-08-08 | Lagonda Ltd | Improvements in or relating to the control of epicyclic variable speed gears |
US5205179A (en) * | 1990-07-21 | 1993-04-27 | Ina Walzlager Schaeffler Kg | Speed changing device |
-
2003
- 2003-03-14 NL NL1022934A patent/NL1022934C2/en not_active IP Right Cessation
-
2004
- 2004-03-12 CN CN 200480006147 patent/CN1756915A/en active Pending
- 2004-03-12 EP EP04720293A patent/EP1604129A1/en not_active Withdrawn
- 2004-03-12 WO PCT/NL2004/000180 patent/WO2004081412A1/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2296520A (en) * | 1940-12-06 | 1942-09-22 | Packard Motor Car Co | Motor vehicle |
GB591153A (en) * | 1945-03-05 | 1947-08-08 | Lagonda Ltd | Improvements in or relating to the control of epicyclic variable speed gears |
US5205179A (en) * | 1990-07-21 | 1993-04-27 | Ina Walzlager Schaeffler Kg | Speed changing device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005039559B4 (en) * | 2005-08-22 | 2020-03-05 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Electromechanical transmission control |
US9638302B2 (en) | 2012-07-13 | 2017-05-02 | Schaeffler Technologies Gmbh & Co. Kg | Electric axle with a two gear transmission |
CN107514459A (en) * | 2017-08-08 | 2017-12-26 | 广州汽车集团股份有限公司 | Linear pattern position detecting mechanism and line traffic control shift actuator |
Also Published As
Publication number | Publication date |
---|---|
CN1756915A (en) | 2006-04-05 |
NL1022934C2 (en) | 2004-09-16 |
EP1604129A1 (en) | 2005-12-14 |
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