Patent
Multi-stage gearbox
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TLDR
In this article, a multi-stage gearbox consisting of nine forward gears and one reverse gear is described, including four planetary gear sets (P1, P2, P3, P4), eight rotary shafts (1, 2, 3, 4, 5, 6, 8, 9) and six gearshifting elements (03, 05, 14, 16, 18, 49).Abstract:
The invention relates to a multi-stage gearbox comprising nine forward gears and one reverse gear, comprising four planetary gear sets (P1, P2, P3, P4), eight rotary shafts (1, 2, 3, 4, 5, 6, 8, 9) and six gear-shifting elements (03, 05, 14, 16, 18, 49). The first and the second planetary gear sets (P1, P2) form a shiftable front mountable gear set and the third and the fourth planetary gear sets (P3, P4) form the main gear set. The connecting bars of the planetary gear sets (P1, P2) are coupled together by the shaft (4) which is connected to the sun gear of the planetary gear set (P3) and the ring gear of the planetary gear set (P1) is coupled to the sun gear of the planetary gear set (P2) by the shaft (8) which can be connected to the drive shaft (1) by means of a coupling (18). Said sun gear of the planetary gear set (P1) can be coupled to a housing (G) by means of the shaft (3) via a brake (03) and can be connected to the drive shaft (1) via the coupling (13) and the ring gear of the planetary gear set (P2) can be coupled to a housing (G) by means of the shaft (5) via the brake (05). Said sun gear of the planetary gear set (P4) is coupled to a housing (G) as a non-rotatable shaft (7). The shaft (6) is coupled to the connecting bar of the planetary gear set (P3) and can be connected to the drive shaft (1) via the coupling (16). The shaft (9) is connected to the ring gear of the planetary gear set (P4) and can be connected to the shaft (4) via the coupling (49). The drive shaft (2) is connected to the ring gear of the planetary gear set (P3) and to the connecting bar of the planetary gear set (P4).read more
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Patent
Multi-speed transmission
Scott H. Wittkopp,James M. Hart +1 more
TL;DR: A multi-speed transmission has three planetary gear sets and six torque-transmitting mechanism packaged in various ones of five zones within a transmission cavity as discussed by the authors, each planetary gear set has a ring gear member, a sun gear member and a carrier member that rotatably supports a plurality of pinion gears that intermesh with both the sun gear members and the ring gear members.
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TL;DR: In this paper, a multi-stage transmission with nine forward gears and one reverse gear comprising four planetary gear sets, eight rotatable shafts and six shift elements is presented, where the sun gear of the first set is connected to the fourth shaft, which is couplable to a housing by the first brake, the carrier of the second set is coupled to the third shaft, and the second brake is detachably connectable to the drive shaft.
References
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Patent
Multi-speed transmission
Scott H. Wittkopp,James M. Hart +1 more
TL;DR: A multi-speed transmission has three planetary gear sets and six torque-transmitting mechanism packaged in various ones of five zones within a transmission cavity as discussed by the authors, each planetary gear set has a ring gear member, a sun gear member and a carrier member that rotatably supports a plurality of pinion gears that intermesh with both the sun gear members and the ring gear members.
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Automatic Transmission For A Vehicle
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TL;DR: In this article, the first and second speed reduction transfer clutches (C-3,C-1) are disposed on a speed reduction planetary gear (DP) side with respect to a planetary gear set (PU) and output side transfer members (101,102) of a vehicle.
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