Patent ID: 8096912
Filing Date: 2012-01-17
Classification: B60K,F16H

Abstract:
1. A speed change transmission apparatus comprising a main speed change device, said main speed change device including; a stepless speed change device receiving a drive force from an engine; a planetary transmission section including a plurality of planetary transmission mechanisms, said planetary transmission section being configured to combine an output from said stepless speed change device and drive force from the engine not subjected to a speed change action by said stepless speed change device; a clutch section receiving force from said planetary transmission section and including a first clutch and a second clutch; and an output shaft operatively coupled to said clutch section, wherein, in response to a speed change operation on said stepless speed change device and to a switchover operation of each of said clutches between an engaged condition and a disengaged condition, said main speed change device outputs, from said output shaft, an output with a rotational speed corresponding to a speed change state of said stepless speed change device and operational conditions of said respective first or second clutch; and an auxiliary speed change device for changing speed of the drive force from said output shaft of said main speed change device and outputting the resultant speed-changed drive force.