Patent ID: 9033846
Filing Date: 2015-05-19
Classification: F16H

Abstract:
1. A multi-gear planetary transmission for a vehicle, the transmission comprising: first, second, third and fourth planetary gearsets (RS a plurality of shafts (I, II III, IV, V, VI, VII VIII, IX); first, second, third, fourth, fifth, and sixth shifting elements (A, B, C, D, E, F), and selective actuation of the first, the second, the third, the fourth, the fifth and the sixth shifting elements implementing a plurality of gear steps; at least the fourth planetary gearset (RS a first shaft (I), of the plurality of shafts, being a drive input (An), and the first shaft (I) being directly connected to the planetary carrier (PT a second shaft (II), of the plurality of shafts, being a drive output (Ab), and the second shaft (II) being directly connected at least to the ring gear (HO) of the fourth planetary gearset (RS each of the gear steps of the multi-gear planetary transmission being implemented by selective engagement of only four of the first, the second, the third, the fourth, the fifth and the sixth shifting elements (A, B, C, D, E, F).