Compact two-speed transmission with compound planetary stage

A transmission comprising:

• a first planetary stage including a first ring gear;
• a ground component;
• a compound planetary stage including a second ring gear;
• and
• means for selectively i) connecting the second ring gear to the ground component, wherein the transmission has a first gear ratio, and ii) instead connecting the first ring gear to the ground component, wherein the transmission has a second gear ratio.

A vehicle comprising:

• a first electric motor having a first rotor shaft;
• and
• a first transmission coupled to the first rotor shaft of the first electric motor, the first transmission comprising:
• a first planetary stage including a first ring gear defining first internal teeth;
• a ground component defining second internal teeth;
• a compound planetary stage including a one-way clutch with an inner race and an outer race, the outer race having a first tapered surface;
• and
• an adaptor defining external teeth and a second tapered surface, the adaptor being movable into at least a first position where the first tapered surface and the second tapered surface are connected with each other, and into a second position where instead the first internal teeth are gear coupled with the second internal teeth.