| 摘要 |
An automatic transmission for an electric vehicle is provided with a belt type continuously variable transmission mechanism (3) in which an input unit (30P) is arranged so as to be capable of rotation relative to an input shaft (2A) and that adjusts a pulley winding radius and a clamping force by an electric actuator (80A) and a mechanical reaction force mechanism (80B, 9), a constant mesh parallel shaft geared transmission mechanism (4) that is coupled to an output unit (30S) of the belt type continuously variable transmission mechanism (3) and has a plurality of speed stages, an input gear (21) that is arranged on the input shaft (2A) so as to be capable of relative rotation and is drivably coupled to one of a plurality of transmission gears fixedly installed on an output-side shat of the constant mesh parallel shaft geared transmission mechanism (4), and a meshing clutch mechanism (5A) that is arranged on the input shaft (2A) and selectively couples either one of the input unit (30P) of the belt type continuously variable transmission mechanism (3) or the input gear (21) to a main electric motor (1). |
