In a structure for an automatic transmission wherein a brake (110) is arranged in a casing, a hydraulic servomechanism for actuating the brake includes a cylinder (161), a piston (162), a return spring for biasing the piston and including an annular portio...

A semi-automatic transmission comprises an input shaft (5); a countershaft (200); constantly meshed gears (201,202,203,204,205,216,211,212,213,214,215,216b,217) arranged between the input shaft and the countershaft; and an electrically controlled dog clutc...

A traction control system for a vehicle with an automatic transmission eliminates an acceleration slip of wheels by fuel-cut for stopping fuel supply to an engine upon occurrence of the acceleration slip. The automatic transmission is inhibited from shifti...