VEHICULAR POWER TRANSMISSION SYSTEM

摘要

There is provided a vehicular power transmission system in which shifting is done by a first shift clutch and a second shift clutch to which a power of a n engine is transmitted, the vehicular power transmission system being excelle nt in efficiency of power transmission and durability, being capable of being manufactured at low cost and of relieving a start shock. A transmission M of a vehicular power transmission system has a first shifting part and a second shifting part which shift a power of an internal combustion engine, a first shift clutch transmitting and interrupting the power to the first shifting part, a nd a second shift clutch transmitting and interrupting the power to the second shifting part. A start clutch transmitting and interrupting the power to the first shift clutch and the second shift clutch is constructed of a centrifugal clutch C having a clutch shoe.