Infinitely variable transmissions, continuously variable transmissions, methods, assemblies, subassemblies, and components therefor

An infinitely variable transmission (IVT) having a longitudinal axis, the IVT comprising:

• a plurality of traction planet assemblies arranged angularly about the longitudinal axis;
• a first carrier member coupled to each of the traction planet assemblies, the first carrier member provided with a plurality of radially off-set slots, the first carrier member configured to guide the traction planet assemblies;
• a second carrier member coupled to each of the traction planet assemblies, the second carrier member provided with a plurality of radial slots, wherein the first and second carrier members are configured to receive a rotational power input, wherein the first carrier member is capable of rotating with respect to the second carrier member;
• and
• a carrier driver nut coupled to the first carrier member, the carrier driver nut adapted to translate axially, wherein an axial translation of the carrier driver nut corresponds to a rotation of the first carrier member with respect to the second carrier member.

A method of controlling an infinitely variable transmission (IVT) having a longitudinal axis, the method comprising the steps of:

• providing a plurality of traction planet assemblies arranged angularly about the longitudinal axis;
• providing a first carrier member coupled to each traction planet assembly, the first carrier member having a plurality of radially off-set guide slots arranged to guide the traction planet assemblies;
• providing a second carrier member coupled to each traction planet assembly, the second carrier member having a plurality of radial guide slots arranged to guide the traction planet assemblies;
• coupling the first and second carrier members to a rotational power source;
• providing a carrier driver nut coupled to the first carrier member;
• and
• translating the carrier driver nut along the longitudinal axis.