Patent ID: 7670246
Filing Date: 2010-03-02
Classification: F16H

Abstract:
1. A multi-speed automatic gearbox of a planetary design for a motor vehicle, the gearbox comprising: an input shaft (AN) and an output shaft (AB); first, second, third and fourth planetary gearsets (RS at least first, second, third, fourth, fifth, sixth, seventh and eighth shafts ( first, second, third, fourth and fifth shifting elements (A, B, C, D, E), whose selective engagement determines a variety different gear ratios between the input shaft (AN) and the output shaft (AB) such that eight forward gears and at least one reverse gear can be implemented; the carrier (ST the ring gear (HO the sun gear (SO the ring gear (HO the sun gear (SO the carrier (ST the sun gear (SO the carrier (ST the first shifting element (A) is arranged within the power flow between the third shaft ( the second shifting element (B) is arranged within the power flow between the fourth shaft ( the third shifting element (C) is arranged within the power flow between the first shaft ( the fourth shifting element (D) is arranged within the power flow between the fifth shaft ( the fifth shifting element (E) is arranged within the power flow between the fifth shaft (