Manual transmission

A manual transmission (M/T) having no torque converter, which is applied to a vehicle including an internal combustion engine (E/G) and an electric motor (M/G) as power sources, comprising:

• an input shaft (Ai) for receiving power from the internal combustion engine;
• an output shaft (Ao) for outputting power to a drive wheel of the vehicle;
• a transmission speed change mechanism (M1) which operates, when a driver moves a shift operation member (SL) on a shift pattern to each of shift completion positions corresponding to a plurality of gear stages (1-st to 6-th), so as to establish a power transmission system between the input shaft and the output shaft such that a transmission speed reduction ratio, which is the ratio of rotational speed of the input shaft to that of the output shaft, is set to a value corresponding to a corresponding gear stage;
• a motor speed change mechanism (M2) which establishes a power transmission system between the input or output shaft and the electric motor and changes, without changing the transmission speed reduction ratio, a motor speed reduction ratio which is the ratio of rotational speed of the electric motor to that of the output shaft,
• wherein the motor speed change mechanism is configured to change the motor speed reduction ratio when the position of the shift operation member passes through a predetermined position on the shift pattern other than the shift completion positions.