Traction drive cooling system

A housing for a motor, the housing comprising:

• a housing body defining a motor cavity configured to mechanically support a motor;
• an electronics cold plate configured to mechanically support electronics to control the motor;
• an oil cavity, wherein the oil cavity is configured to define an oil flow path from a first end of the housing body toward a second end of the housing body;
• and a coolant cavity thermally coupled to each of the motor cavity, the electronics cold plate, and the oil cavity, wherein:
• the housing body defines a coolant inlet fluidly coupled to the coolant cavity and a coolant outlet fluidly coupled to the coolant cavity, the coolant cavity is configured to define a first fluid channel defining a first coolant path from the coolant inlet to the coolant outlet, wherein the coolant cavity defines the first coolant path from the second end of the housing body toward the first end of the housing body, and wherein the first coolant path is thermally coupled to the oil cavity and the motor cavity, such that oil flowing in the oil flow path and coolant flowing in the first coolant path exchange heat through a counter-flow heat exchange, the coolant cavity is configured to define a second fluid channel defining a second coolant path from the coolant inlet to the coolant outlet, wherein the second coolant path is thermally coupled to the electronics cold plate and the motor cavity, and wherein the first fluid channel is substantially parallel to the second fluid channel, and the first coolant path and the second coolant path branch from the coolant inlet and reunite at the coolant outlet.