Patent ID: 6886425

Claim:
An electromagnetic shift arrangement for a transmission ( 2 ) comprising: a first gear wheel ( 4 ) and a second gear wheel ( 6 ) rotatably disposed around an axis ( 20 ) of a gear shaft ( 12 ) to form a ratio step for the transmission ( 2 ); a shift dog ( 18 ) non-rotatably connected to and axially movable along said axis ( 20 ) of said gear shaft ( 12 ) is situated between the first and the second gear wheels; an electromagnetic device ( 24 , 26 , 40 ) positioned axially adjacent said shift dog ( 18 ), to axially move said shift dog ( 18 ) in two directions along said axis ( 20 ) without a shift fork; and a first position in which an electromagnetic field generated by the electromagnetic device axially moves the shift dog in a first operational direction to engage with one of the first and the second gear wheel ( 4 , 6 ) and a second position wherein the electromagnetic field generated in said electromagnetic device ( 24 , 26 , 40 ) is reversed to move the shift dog in an opposing second operational direction to disengage with one of the first and second gear wheel ( 4 , 6 ), wherein by control of said electromagnetic device ( 24 , 26 , 40 ) different load reduction times can be adjusted, and wherein by means of the control a reversal of the electromagnetic field is produced to form a damping device against an impact of said shift dog ( 18 ) with the first and second gear wheels ( 4 , 6 ).