Transmission and vehicle with a transmission

A transmission comprising:

• a first shaft;
• a second shaft,
• one of the first shaft and the second shaft being adapted for operatively connecting to a motor, an other one of the first shaft and the second shaft being adapted for operatively connecting to at least one driveshaft;
• a shift drum for selectively controlling torque transfer between the first shaft and the second shaft, the shift drum being rotatable about a drum axis, the shift drum defining therein a first groove, a second groove, and a third groove;
• a shift rod extending parallel to the drum axis, the shift rod being translatable along a rod axis parallel to the drum axis;
• a driving member fixedly connected to the shift rod, the driving member engaging the first groove of the shift drum, at least a portion of the first groove causing the driving member and the shift rod to translate along the rod axis upon rotation of the shift drum;
• a first gear and a second gear disposed on the first shaft;
• a third gear disposed on the second shaft, the third gear operatively engaging the first gear;
• a first engagement dog disposed on the second shaft, the first engagement dog being rotationally fixed and axially translatable with respect to the second shaft, the first engagement dog selectively engaging the third gear to cause rotation of the second shaft by the third gear;
• a fourth gear disposed on the second shaft, the fourth gear operatively engaging the second gear;
• a second engagement dog disposed on the second shaft, the second engagement dog being rotationally fixed and axially translatable with respect to the second shaft, the second engagement dog selectively engaging the fourth gear to cause rotation of the second shaft by the fourth gear;
• a first biasing member disposed around the shift rod, the first biasing member having a first end and a second end, the first end of the first biasing member being axially fixed with respect to the shift rod;
• a second biasing member disposed around the shift rod, the second biasing member having a first end and a second end;
• a fork rod disposed parallel to the shift rod;
• a first shift fork slidably connected to the fork rod and slidably connected to the shift rod,
• the first shift fork engaging the second groove of the shift drum, at least a portion of the second groove and the first biasing member causing the first shift fork to selectively translate along the fork rod to control engagement of the first engagement dog with the third gear at a first rotational position of the shift drum;
• and
• a second shift fork slidably connected to the fork rod and slidably connected to the shift rod,
• the second shift fork engaging the third groove of the shift drum, at least a portion of the third groove and the second biasing member causing the second shift fork to selectively translate along the fork rod to control engagement of the second engagement dog with the fourth gear at a second rotational position of the shift drum,
• the transmission having:
• a first shift position where:
• the shift drum is rotated to the first rotational position,
• the shift rod is translated to a first shift rod position along the rod axis by the driving member,
• the first engagement dog is engaged with the third gear,
• the second engagement dog is disengaged from the fourth gear,
• the transmission is transferring torque between the first shaft and the second shaft via the first gear and the third gear, and
• the first shift position being arranged and structured to produce a first ratio of a speed of rotation of the second shaft to a speed of rotation of the first shaft, and
• a second shift position where:
• the shift drum is rotated to the second rotational position,
• the shift rod is translated to a second shift rod position along the rod axis by the driving member,
• the second engagement dog is engaged with the fourth gear,
• the first engagement dog is disengaged from the third gear,
• the transmission is transferring torque between the first shaft and the second shaft via the second gear and the fourth gear, and
• the second shift position being arranged and structured to produce a second ratio of the speed of rotation of the second shaft to the speed of rotation of the first shaft.