ELECTROMAGNETIC SELECTION DEVICE FOR A TWO-STAGE PLANETARY GEAR SET
The invention relates to an electromagnetic selection device for a two-stage planetary gear set (1) with an input shaft (2) and an output shaft (3), a sun wheel (8), a hollow wheel (11), a planet carrier (10) with planet wheels (5), a gearbox housing (6) and a sliding sleeve (14) for switching from a first gear, in which the hollow wheel (11) is coupled to the housing (6) and a second gear, in which the hollow wheel is coupled to the sun wheel. The sliding sleeve may be displaced by means of an electromagnet made from magnet coils (22, 23) and an armature (24). According to the invention, the armature (24) is arranged on the sliding sleeve (14) such as to rotate but is axially fixed.