Integrated shift motor and electronic controller

An integrated shift control assembly for a power transmission device comprising, in combination,

• a housing,
• an electric drive motor disposed in said housing and having an output,
• a rotation sensing assembly on said output of said electric drive motor,
• a gear train disposed in said housing, operably coupled to said output of said drive motor and having an output member,
• a plate disposed for rotation with said output member, said plate defining a plurality of angularly distinct regions,
• a plurality of sensors disposed in sensing relationship with said plate, and
• a circuit board disposed in said housing and having a microcontroller operably coupled to said sensor assembly and said sensors.

A shift control assembly for a power transmission device having at least two operating modes comprising, in combination,

• an input member,
• a speed reducing assembly having an output,
• a clutch member for selectively engaging at least said input member and said output of said speed reducing assembly output,
• a rotating shift rail having a pair of spaced apart cam followers,
• a shift fork engaging said clutch member, said shift fork disposed on said shift rail and including a pair of cams, each of said cams engaged by a respective one of said pair of cam followers,
• a member disposed for rotation with said shift rail, said flat member defining an array angularly distinct regions,
• a plurality of sensors disposed in sensing relationship with said array of angularly distinct regions,
• a drive motor having a bi-directional output and a sensing member disposed thereon
• a sensor associated with said sensing member for sensing rotation of said drive motor,
• a gear train driven by said output of said drive motor and driving said shift rail, and
• a microcontroller for receiving signals from said sensor and operably driving said drive motor.