Patent ID: 7021169
Filing Date: 2006-04-04
Classification: F16H,Y10T

Abstract:
1. An automatic transmission provided with an input shaft having a plurality of drive gears and with an output shaft having a plurality of driven gears constantly engaging with said drive gears, comprising: an input clutch provided beneath a crankshaft of an engine and said input shaft to connect an engine power with said transmission and to disconnect from said input shaft; a switching mechanism for selectively switching a transmission gear train to transmit the power among a plurality of transmission gear trains formed by said drive gears and said driven gears; a plurality of bypass clutches provided in an end portion of said input shaft to transmit the power to the respective transmission gear trains and to transmit different torque capacities from each other to said output shaft; and bypass clutch control means for transmitting the engine power to said output shaft via at least one of said plurality of bypass clutches at a time of shifting gears; wherein said plurality of bypass clutches and said input clutch are arranged in series between the engine and said shaft.