MULTISPEED ELECTRIC DRIVE MODULE ACTUATION MECHANISM

Organization Name

Inventor(s)

Michael E Fingerman of West Bloomfield MI (US)

MULTISPEED ELECTRIC DRIVE MODULE ACTUATION MECHANISM

This abstract first appeared for US patent application 18453408 titled 'MULTISPEED ELECTRIC DRIVE MODULE ACTUATION MECHANISM

Original Abstract Submitted

An electric drive module for an electrified vehicle includes an electric motor, a transmission and a multispeed actuation mechanism (MAM). The transmission is driven by a rotatable output of the electric motor and includes a first drive shaft and a second drive shaft. The transmission has 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, 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 MAM has magnetic fluid therein. Activation of the magnetic fluid causes a shift to occur within the transmission from the first gear set to the second gear set.