MULTY STAGE TRANSMMISSION FOR VEHICLE

摘要

The present invention provides a multi-speed transmission for a vehicle, realizing at least 10 drive gears and 1 reverse gear with the relatively small number of components and a simple configuration in order to maximize improvement of fuel efficiency of a vehicle by optimized driving point operation of an engine and improve quietness of the vehicle with further quiet operation of the engine. The multi-speed transmission for a vehicle comprises: an input shaft (IN) and an output shaft (OUT); a first planetary gear device (PG1), a second planetary gear device (PG2), a third planetary gear device (PG3), and a fourth planetary gear device (PG4); and at least six shifting elements.