Actuator mechanism for shift motors of a transmission

A system for actuating couplers to produce gear changes in a multiple gear transmission for a motor vehicle comprising:

• a first electric motor;
• a second electric motor;
• first and second actuator drums supported for rotation and driveably connected to the first motor;
• third and fourth actuator drums supported for rotation and driveably connected to the second motor;
• a first shift fork driveably connected to the first actuator drum and supported for displacement in response to rotation of the first actuator drum between a neutral state, wherein no gear is engaged, and multiple drive states, wherein a second gear and a sixth gear are engaged, respectively;
• a second shift fork driveably connected to the second actuator drum and supported for displacement in response to rotation of the second actuator drum between a neutral state, wherein no gear is engaged, and multiple drive states, wherein a fourth gear and a reverse gear are engaged, respectively;
• a third shift fork driveably connected to the third actuator drum and supported for displacement in response to rotation of the third actuator drum between a neutral state, wherein no gear is engaged, and at least one drive state, wherein a first gear is engaged;
• a fourth shift fork driveably connected to the fourth actuator drum and supported for displacement in response to rotation of the fourth actuator drum between a neutral state, wherein no gear is engaged, and multiple drive states, wherein a third gear and a fifth gear are engaged, respectively.

A system for actuating couplers to produce gear changes in a transmission for a motor vehicle comprising:

• a first electric motor having an axis of rotation;
• a first pinion drivable connected to the first motor about the axis;
• a first gear engaged with the first pinion and supported for rotation eccentric of said axis;
• a second electric motor aligned with said axis;
• first actuator drums supported for rotation transverse to said axis and driveably connected to the first motor through the first pinion and the first gear;
• first shift forks, each first shift fork driveably connected to one of the first actuator drums and supported for displacement transverse to said axis in response to rotation of one of the first actuator drums between a neutral state, wherein no gear is engaged, and at least one first drive state, wherein a gear of a first gear group is engaged;
• a second pinion drivable connected to the second motor about the axis;
• a second gear engaged with the second pinion and supported for rotation eccentric of said axis;
• second actuator drums supported for rotation transverse to said axis and driveably connected to the second motor through the second pinion and the second gear;
• and
• second shift forks, each second shift fork driveably connected to one of the second actuator drums and supported for displacement transverse to said axis in response to rotation of one of the second actuator drums between a neutral state, wherein no gear is engaged, and at least one second drive state, wherein a gear of a second gear group is engaged.