| 摘要 |
A transmission which has drive input and output shafts, a housing, two planetary gearsets (PR1, PR2), and at least three shifting elements which produce three gears or ratios. A ring gear of the gearset (PR1) and the input shaft are connected for forming a first shaft, a carrier of gearset (PR1) and the output shaft are connected for forming a second shaft, a ring gear of gearset (PR2) forms a third shaft, sun gears of gearsets (PR1, PR2) are connected for forming a fourth shaft, and carrier of gearset (PR2) couples the housing. The first shifting element is arranged in the force flow between the third shaft and the housing, the third shifting element is arranged in the force flow between the second and third shafts, and the second shifting element is arranged in the force flow either between the first and second shafts or the second and fourth shafts. |
| 主权项 |
1. A transmission comprising:
a drive input shaft (AN), a drive output shaft (AB), a housing (G), at least first and second planetary gearsets (PR1, PR2), and each of the first and the second planetary gearsets comprising a ring gear, a sun gear and a carrier, at least first, second and third shifting elements (B03, K12, K23), and selective engagement of the first, the second and the third shifting elements producing various transmission ratios between the drive input shaft (AN) and the drive output shaft (AB) such that at least three gears are implementable, the drive input shaft (AN) and the ring gear (H1) of the first planetary gearset (PR1) being connected to one another in a rotationally fixed manner for forming a first shaft (1), the drive output shaft (AB) and the carrier (ST1) of the first planetary gearset (PR1) being connected to one another in a rotationally fixed manner for forming the second shaft (2), the ring gear (H2) of the second planetary gearset (PR2) forming a third shaft (3), the sun gear (S1) of the first planetary gearset (PR1) and the sun gear (S2) of the second planetary gearset (PR2) both being connected to one another in a rotationally fixed manner for forming a fourth shaft (4), the carrier (ST2) of the second planetary gearset (PR2) being coupled to the housing (G) of the transmission in a rotationally fixed manner, the first shifting element (B03) being arranged in a force flow between the third shaft (3) and the housing (G) of the transmission, the third shifting element (K23) being arranged in a force flow between the second shaft (2) and the third shaft (3), and the second shifting element (K12) being arranged in a force flow either between the first shaft (1) and the second shaft (2) or between the second shaft (2) and the fourth shaft (4). |
