Transmission for a vehicle and a method of assembling a modular motor assembly in the transmission

A transmission for a vehicle, the transmission comprising:

• a housing defining a cavity along a longitudinal axis;
• a first motor/generator and a second motor/generator each disposed in the cavity;
• a first support supporting the first motor/generator such that the first motor/generator is mounted to the first support to define a first modular unit, with the first modular unit attached to the housing within the cavity;
• and
• a second support supporting the second motor/generator such that the second motor/generator is mounted to the second support to define a second modular unit, with the second modular unit attached to the first modular unit such that the first and second modular units align with each other along the longitudinal axis within the cavity of the housing;
• wherein the first and second motor/generators each include a rotor, a stator and a resolver, with the rotor, the stator and the resolver of the first motor/generator coupled to the first support to further define the first modular unit and the rotor, the stator and the resolver of the second motor/generator coupled to the second support to further define the second modular unit;
• wherein the stator of the first motor/generator includes a first mounting flange attached to the first support to secure the first motor/generator to the first support;
• wherein the first support includes a first extension extending away from the second modular unit, with the first extension aligning with the first mounting flange, and further including a first fastener disposed through the first extension and the first mounting flange to secure the first motor/generator and the first support to each other.

A method of assembling a modular motor assembly in a transmission of a vehicle, the method comprising:

• providing a housing defining a cavity along a longitudinal axis;
• mounting a first motor/generator to a first support to define a first modular unit;
• mounting a second motor/generator to a second support to define a second modular unit, with the first and second modular units defining the modular motor assembly;
• inserting the first and second modular units into the cavity of the housing along the longitudinal axis;
• attaching the first support to the housing within the cavity;
• attaching the second support directly to the first support to assemble the modular motor assembly in the transmission such that the first and second modular units align with each other along the longitudinal axis within the cavity of the housing;
• and
• wherein attaching the first support to the housing includes attaching a coupler to the first support before inserting the first modular unit into the cavity of the housing and attaching the coupler to the housing to secure the first modular unit to the housing within the cavity;
• wherein attaching the second support to the first support includes attaching the second support to the coupler after attaching the coupler to the housing to secure the first and second modular units to each other such that the first and second modular units align with each other along the longitudinal axis within the cavity of the housing.