Multispeed electric drive module actuation mechanism

An electric drive module for an electrified vehicle, the electric drive module comprising:

• a transmission that is driven by an output of an electric motor and includes a first drive shaft and a second drive shaft, the transmission having a first gear set that selectively converts rotatable motion of the first drive shaft into rotatable motion of the second drive shaft in a first gear mode at a first drive ratio, the first gear set comprising a first gear configured to rotate with the first drive shaft and a second gear that is configured to selectively drive the second drive shaft in the first gear mode;
• and a second gear set that selectively converts rotatable motion of the first drive shaft into rotatable motion of the second drive shaft in a second gear mode at a second drive ratio, distinct from the first drive ratio, the second gear set comprising a first gear configured to rotate with the first drive shaft and a second gear that is configured to selectively rotate with the second drive shaft in the second gear mode;
• and
• a multispeed actuation mechanism (MAM) having magnetic fluid including ferromagnetic nanoparticles suspended therein, the MAM further having a first disk rotatably coupled to the first drive shaft and a second disk rotatably coupled to the first gear of the second gear set, wherein activation of the magnetic fluid causes the first and second disks to rotate concurrently and a shift to occur within the transmission from the first gear set to the second gear set, wherein the first drive shaft is coaxial with the first gear of the second gear set such that deactivation of the magnetic fluid results in the first drive shaft to rotate within the first gear of the second gear set.