TRANSMISSION FOR A MOTOR VEHICLE
1 Assignment
0 Petitions
Accused Products
Abstract
A transmission (G) for a motor vehicle. The transmission (G) comprises a transmission input (GW1-A), a transmission output (GW2-A), first, second, third and fourth planetary gearsets (P1, P2, P3, P4) and first, second, third, fourth, fifth and sixth shift elements (B1, B2, K1, K2, K3, K4). Ten forward gears and one reverse gear can be achieved between the transmission input (GW1-A) and the transmission output (GW2-A) by selectively operating the six shift elements (B1, B2, K1, K2, K3, K4). A drive train for a motor vehicle having such a transmission (G) is also disclosed.
-
Citations
31 Claims
-
1-15. -15. (canceled)
-
16. A transmission (G) for a motor vehicle, the transmission comprising:
-
a transmission input (GW1-A), a transmission output (GW2-A), a first planetary gearset (P1), a second planetary gearset (P2), a third planetary gearset (P3), a fourth planetary gearset (P4), the first, the second, the third and the fourth planetary gearsets (P1, P2, P3, P4) each comprising a plurality of elements (E11, E12, E13, E14, E21, E22, E23, E24, E31, E32, E33, E34), a first element (E11, E12, E13, E14) of the respective planetary gearsets (P1, P2, P3, P4) being formed as a sun gear, a second element (E21, E22, E23, E24) of the respective planetary gearsets (P1, P2, P3, P4) being formed as a planetary carrier, in a case of a minus planetary gearset, and as a ring gear, in a case of a plus planetary gearset, and a third element (E31, E32, E33, E34) of the respective planetary gearsets (P1, P2, P3, P4) being formed as the ring gear, in the case of the minus planetary gearset, and as the planetary carrier, in the case of the plus planetary gearset, a first shift element (B1), a second shift element (B2), a third shift element (K1), a fourth shift element (K2), a fifth shift element (K3), a sixth shift element (K4), selective actuation of four of the first, the second, the third, the fourth, the fifth, and the sixth shift elements implementing different flow paths of power on the first, the second, the third, and the fourth planetary gearsets (P1, P2, P3, P4) by achieving different gears ratios (1 to 10, R1) between the transmission input (GW1-A) and transmission output (GW2-A); the first element (E11) of the first planetary gearset (P1) and the first element (E12) of the second planetary gearset (P2) being rotatably fixed with one another and being jointly fixable, via the first shift element (B1), to a non-rotating component (GG); the third element (E31) of the first planetary gearset (P1) being fixable, via the second shift element (B2), to the non-rotating component (GG); the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) being permanently rotatably fixed with one another; the transmission input (GW1-A) being rotatably fixed with the second element (E22) of the second planetary gearset (P2); the transmission output (GW2-A) being rotatably fixed with the second element (E24) of the fourth planetary gearset (P4); and the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) both being jointly rotatably fixable, via the third shift element, (K1) with the third element (E32) of the second planetary gearset (P2). - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A motor vehicle drive train comprising a transmission (G) comprising:
-
a transmission input (GW1-A), a transmission output (GW2-A), a first planetary gearset (P1), a second planetary gearset (P2), a third planetary gearset (P3), a fourth planetary gearset (P4), the first, the second, the third and the fourth planetary gearsets (P1, P2, P3, P4) each comprising a plurality of elements (E11, E12, E13, E14, E21, E22, E23, E24, E31, E32, E33, E34), a first element (E11, E12, E13, E14) of the respective planetary gearsets (P1, P2, P3, P4) being formed as a sun gear, a second element (E21, E22, E23, E24) of the respective planetary gearsets (P1, P2, P3, P4) being formed as a planetary carrier, in a case of a minus planetary gearset, and as a ring gear, in a case of a plus planetary gearset, and a third element (E31, E32, E33, E34) of the respective planetary gearsets (P1, P2, P3, P4) being formed as the ring gear, in the case of the minus planetary gearset, and as the planetary carrier, in the case of the plus planetary gearset, a first shift element (B1), a second shift element (B2), a third shift element (K1), a fourth shift element (K2), a fifth shift element (K3), a sixth shift element (K4), selective actuation of four of the first, the second, the third, the fourth, the fifth, and the sixth shift elements implementing different flow paths of power on the first, the second, the third, and the fourth planetary gearsets (P1, P2, P3, P4) by achieving different gears ratios (1 to 10, R1) between the transmission input (GW1-A) and transmission output (GW2-A); the first element (E11) of the first planetary gearset (P1) and the first element (E12) of the second planetary gearset (P2) being rotatably fixed with one another and being jointly fixable, via the first shift element (B1), to a non-rotating component (GG); the third element (E31) of the first planetary gearset (P1) being fixable, via the second shift element (B2), to the non-rotating component (GG); the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) being permanently rotatably fixed with one another; the transmission input (GW1-A) being rotatably fixed with the second element (E22) of the second planetary gearset (P2); the transmission output (GW2-A) being rotatably fixed with the second element (E24) of the fourth planetary gearset (P4); and the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) both being jointly rotatably fixable, via the third shift element, (K1) with the third element (E32) of the second planetary gearset (P2).
-
-
31. A transmission (G) for a motor vehicle, the transmission comprising:
-
a transmission input (GW1-A); a transmission output (GW2-A); first, second, third and fourth planetary gearsets (P1, P2, P3, P4), the first, the second, the third and the fourth planetary gearsets respectively being either a plus planetary gearset or a minus planetary gearset, each of the first, the second, the third and the fourth planetary gearsets (P1, P2, P3, P4) having first, second and third elements, the first element (E11, E12, E13, E14) of each planetary gearset being a sun gear, and if the planetary gearset is a plus planetary gearset then the second element (E21, E22, E23, E24) is a ring gear and the third element (E31, E32, E33, E34) is a planetary carrier, otherwise if the planetary gearset is a minus planetary gearset then the second element (E21, E22, E23, E24) is the planetary carrier and the third element (E31, E32, E33, E34) is the ring gear; first, second, third, fourth, fifth, and sixth shift elements (B1, B2, K1, K2, K3, K4), and selective engagement of four of the first, the second, the third, the fourth, the fifth, and the sixth shift elements implementing a plurality gear ratios in a flow of drive power through the first, the second, the third and the fourth planetary gearsets from the transmission input (GW1-A) to the transmission output (GW2-A); the first element (E11) of the first planetary gearset (P1) and the first element (E12) of the second planetary gearset (P2) being connected to one another in a rotationally fixed manner, and connectable to a housing (GG) in a rotationally fixed manner by engagement of the first shift element (B1); the third element (E31) of the first planetary gearset (P1) being connectable to the housing in a rotationally fixed manner by engagement of the second shift element (B2); the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) being connected to one another in a rotationally fixed manner; the transmission input (GW1-A) being connected to the second element (E22) of the second planetary gearset (P2) in a rotationally fixed manner, and the transmission output (GW2-A) being connected to the second element (E24) of the fourth planetary gearset (P4) in a rotationally fixed manner; and the second element (E21) of the first planetary gearset (P1) and the third element (E34) of the fourth planetary gearset (P4) being connectable to the third element (E32) of the second planetary gearset (P2) in a rotationally fixed manner by engagement of the third shift element (K1).
-
Specification